EP2705467A1 - Radio-frequency communication device comprising an assisted radio-frequency power supply - Google Patents

Radio-frequency communication device comprising an assisted radio-frequency power supply

Info

Publication number
EP2705467A1
EP2705467A1 EP12720467.5A EP12720467A EP2705467A1 EP 2705467 A1 EP2705467 A1 EP 2705467A1 EP 12720467 A EP12720467 A EP 12720467A EP 2705467 A1 EP2705467 A1 EP 2705467A1
Authority
EP
European Patent Office
Prior art keywords
component
sim
battery
source
supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12720467.5A
Other languages
German (de)
French (fr)
Inventor
Michel Thill
Christophe Arnoux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales DIS France SA
Original Assignee
Gemalto SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gemalto SA filed Critical Gemalto SA
Priority to EP12720467.5A priority Critical patent/EP2705467A1/en
Publication of EP2705467A1 publication Critical patent/EP2705467A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer

Definitions

  • Radio frequency communication device comprising a power supply of radio frequency origin assisted
  • the invention relates to a radiofrequency communication device comprising electromagnetic energy supply means for supplying a component.
  • the invention relates to a mobile phone (mobile) comprising a battery supplying power to a Near Field Communication (NFC) proximity radio frequency circuit and implementing a mode in which all or part of the power supply of the mobile is cut, including the power of a subscriber identification module (SIM, USIM) fixed or removable in favor of a supply of electromagnetic origin.
  • a mobile phone mobile
  • NFC Near Field Communication
  • SIM subscriber identification module
  • USIM subscriber identification module
  • the NFC radiofrequency circuit is preferably integrated in a hose configured to be interposed between the SIM card and its connector in the mobile.
  • the NFC circuit can be factory integrated in removable or fixed form in telecommunication devices, such as mobile phones, PDA PDAs, laptops, etc.
  • the ISO / IEC 14443 and ETSI TS 102 622 V7 standards provide for a mode of operation (contactless card emulation) of the radio frequency communication of proximity in which the mobile phone (or at least the radiofrequency part of the telephone, comprising an NFC controller with a subscriber identification module) behaves like a contactless card or a passive electronic tag vis-à-vis an emitter reader electromagnetic field.
  • This mode emulates a contactless or equivalent card for the mobile phone.
  • Today, in the mode of "contactless card" operation of a phone with NFC function may not be completely satisfactory or compliant with the standard or may have malfunctions.
  • a very hostile radio frequency environment metallic obstacles and disturbances by other radio frequencies.
  • the patent application EP 2,088,540 describes an electronic portable device for supplying an electronic circuit by battery in the event of detection of an electromagnetic field, the circuit not being powered in the standby position.
  • This device comprises selection means for selecting a supply of this circuit coming from the battery, during an electromagnetic field presence. This device avoids battery standby power.
  • the patent application JP 8 055198 discloses a non-contact and battery IC card that saves the battery when receiving an electromagnetic field.
  • the card includes a switch that disconnects the integrated circuit of the battery when receiving an electromagnetic field. This switch connects the integrated circuit to the battery when the integrated circuit needs power.
  • contactless cards with a thin battery in the thickness of the card body to improve the range of contactless communication or allow arithmetic or cryptographic functions integrated or display data.
  • Such cards are marketed in particular by the company "Solicore”.
  • These cards include passive radio frequency circuits directly receiving the electromagnetic flux to feed directly. It is not NFC circuit powering an integrated circuit or other component separate and external to the radio frequency circuit. These cards do not implement a contactless object reader function or contactless card.
  • the problem to be solved is to guarantee the same quality of operation of the contactless application, whether the contactless system is powered by the telephone or by the RF field.
  • the invention consists in integrating or associating a power source such as a thin battery, at least one capacitance to the NFC or CLF component to "boost" or meet the power consumption needs, particularly punctual or during radio frequency transactions. These needs may arise during certain phases of a radio frequency contactless transaction, including the initial phase or start-up phase.
  • the invention makes it possible to guarantee normal operation of the component via a normal consumption of current of the component throughout the duration of the radiofrequency transaction.
  • the extra battery is charged, preferably by the phone's main battery when it is operational.
  • the invention has no significant impact on the operation of the host device such as a mobile, the alternative source of energy being recharged with extremely low currents that do not disturb the operation of the host device. Unlike a prior art thin-film card referred to above, the invention does not bring about a permanent mode of energy but a guarantee of using this energy only in the emergency case of the unloaded or extinguished telephone, this allows to consider the use of energy storage objects with very low capacities.
  • the subject of the invention is therefore a radiofrequency communication device comprising connection means connecting or intended to electrically connect an integrated circuit component (SIM), means for supplying this component (SIM) with electromagnetic current (RF);
  • the invention makes it possible to stimulate or compensate for or remedy the main power supply insufficiency or radiofrequency origin provided by the device. According to other characteristics of the device:
  • EC communication mode
  • EC communication mode
  • SIM component power supply configuration
  • RF electromagnetic source
  • B1 first source
  • B1 a main battery
  • the alternative source comprises a secondary battery and / or at least one capacitor
  • the alternative source is rechargeable by a main battery of the device hosting the NFC system;
  • the component comprises a subscriber identification module to a telecommunications network or an integrated circuit chip or a UICC type card.
  • the device comprises an NFC controller and a connection connecting or intended to connect the NFC controller to the component (SIM) to provide a supply of electromagnetic origin, a direct connection of the alternative source to the component (SIM) or via a managerial means alternating power supply and / or conditioning means of said alternative source.
  • the device comprises an alternative power management means for managing an alternating direct supply of the component (SIM), a load circuit of the AC source connected to the main battery, an electromagnetic field detection circuit intervening with said manager to inhibit a discharge of the alternative source to the component (SIM) in the absence of electromagnetic field detection and to authorize the discharge in the opposite case;
  • an alternative power management means for managing an alternating direct supply of the component (SIM), a load circuit of the AC source connected to the main battery, an electromagnetic field detection circuit intervening with said manager to inhibit a discharge of the alternative source to the component (SIM) in the absence of electromagnetic field detection and to authorize the discharge in the opposite case;
  • the battery or at least the capacitance is attached to a portion of a flexible NFC device including the antenna;
  • the device comprises an NFC controller, connection pads for connecting on the one hand a main battery of a host device and on the other hand a subscriber identification module (SIM);
  • SIM subscriber identification module
  • the battery and / or at least the capacity and / or said alternative power management means are fixed or integrated in an electronic component which can constitute or comprise an NFC controller and / or a subscriber identification module (SIM); ;
  • the host device is a mobile phone.
  • the invention also relates to a radiofrequency communication method implementing at least one integrated circuit component (SIM) and means for selecting a power supply of electromagnetic origin to supply this component;
  • SIM integrated circuit component
  • the method is characterized in that it comprises a step of supplying a power supply of the component (SIM) by an alternative source when receiving an electromagnetic field as soon as the supply current of electromagnetic origin received by the component is insufficient.
  • SIM component
  • the invention thus allows a mode of operation of the mobile compliant with the standards but powered at least for a short period of transaction start as if it was permanently outside the map emulation mode.
  • the invention makes it possible to have at any time the guarantee of an optimized operation of the NFC system in a mobile phone whether it is subsequently added or planned by the factory.
  • FIG. 1 illustrates a flexible NFC system F of the prior art
  • FIG. 2 illustrates the system F being inserted into a telecommunication apparatus 5
  • FIG. 3 illustrates an external view of a flexible NFC system according to the invention
  • FIG. 4 illustrates a first embodiment of the supply circuit according to the invention
  • FIG. 5 illustrates a second embodiment of the supply circuit according to the invention
  • Figure 6 illustrates an apparatus provided in its manufacture of the supply circuit according to the invention
  • FIG. 7 illustrates process steps according to several modes of implementation
  • Figure 8 illustrates a CMS-type component arranged with all or part of the invention; In particular, it describes an NFC or SIM controller combined with a circuit comprising a mini battery or capacitors.
  • Figure 1 illustrates a flexible NFC system of the prior art; it comprises a flexible support SI carrying a radio frequency antenna Al, an NFC controller (2), power management means (4) of the NFC controller connected to or configured to be connected to the battery and / or to the radiofrequency antenna A1, a connector (3, 6) with pads 3 and contact pads 6 respectively opening or arranged on one of the two main faces of a portion intended to interface with a connector 10 (blade connector or springs) of telecommunication apparatus 5 for SIM module and contact pads of the SIM module.
  • the apparatus may also be a communication device such as a personal assistant or any device comprising a battery that is to be provided with contactless communication means.
  • the NFC controller may internally include the power management means 4.
  • This system (SI) is housed in a host device 5 such as a telecommunications device, the antenna can be, for example, pressed against a battery B1 (FIG 1) of this host device.
  • FIG. 2 illustrates a flexible NFC system F1 comprising the flexible system of the prior art F equipped with the device of the invention. It comprises in particular a flexible thin battery b3 and an additional power supply circuit 40 according to the invention to manage the use of this additional battery as detailed below.
  • FIG 4 is illustrated a block diagram of an embodiment of a supply device 20 for radio frequency communication device Fl according to the invention; the communication device comprises at least one integrated circuit component (SIM or other) or connection means to this component (SIM), as previously, means 2, 4 for selecting a current supply of this component from an electromagnetic field of an external reader (T, A2).
  • SIM integrated circuit component
  • T, A2 an external reader
  • the device is the flexible NFC system (F) which comprises an integrated circuit chip 2 as a radiofrequency component or NFC type controller (CLF);
  • the NFC controller is connected to a transmitting antenna Al and / or electromagnetic field reception;
  • the controller 2 comprises connection means 13 to the battery;
  • These connection means comprise contact pads of the ISO 7816 type (3, 6).
  • the component here is a subscriber identification chip but could be all or part of a circuit of an associated device.
  • Circuit 2 is designed to provide a standardized voltage to the SIM chip between 1.8 and 3 volts.
  • connection means 3 is in fact in the example an interconnection means (I) which comprises a first connector 13 for connecting the NFC controller (2); On the other hand, the interconnection means also comprises a second connector (3, 6) for connecting a subscriber identification module (SIM) and the connector 10 of the portable telecommunication device 5.
  • I interconnection means
  • SIM subscriber identification module
  • the radiofrequency communication device F2 comprises:
  • SIM integrated circuit component
  • connection means 3, 6, to a first energy source B1 comprising a battery and / or a second source T implementing an RF electromagnetic field 14443; an EC operating mode in contactless card emulation or equivalent radio frequency operation,
  • Power management means 2, 4 of the component according to this mode configured to cut the power from said first source of energy B1 and to provide instead a supply from said second external source T.
  • This source emits an electromagnetic field (RF 14443) through a transmitting antenna A2.
  • the device F2 comprises:
  • a third power source b3 such as a secondary or auxiliary battery or at least one capacitor C3 (not shown) for the direct supply of the SIM component in said mode (EC),
  • direct means 23 for example, a conducting wire for the supply of power to the component by this third power source b3 in the event of a supply of the component that is insufficient or not provided by the said second source (T) during a RF radio communication.
  • the direct power supply means 23 may comprise in a simple example, a simple direct connection for the power supply to the SIM component connecting the source b3 and / or c3 to the component (SIM).
  • the auxiliary battery is of the flexible and flat type of approximately 300 ⁇ thick. It can be fixed on the flexible NFC device, for example at the inner surface of the antenna Al (FIG 3). Advantageously, the flexible battery does not completely cover the coupling surface of the antenna Al to maintain a good radio frequency coupling.
  • the alternative power supply means b3, C3 are rechargeable. In the example, they are here rechargeable by the main battery Bl. However, other charging methods are possible directly or for example via photovoltaic sensors, etc.
  • the device therefore comprises for this purpose a charging circuit 24 or load manager and / or discharge battery appendix b3 or C3.
  • This circuit 24 is connected directly to the main battery B1 via a connection 25 to draw the charging energy.
  • the device F2 may comprise a diode 26 or the like to deliver a voltage attenuated with respect to that delivered by the battery b3;
  • the attenuation here is 0.4 volts;
  • the diode is disposed on the link 23 before connecting the SIM module.
  • the discharge management circuit delivers a voltage (1.9V) which is just above the minimum voltage (1.8V) provided by the CLF controller (2).
  • the auxiliary battery b3 delivers a regulated voltage of 2.3 V through the discharge manager 24.
  • an additional power supply circuit 30 comprises the flexible auxiliary battery and the charge / discharge management electronics 34 and the diode 26. This additional circuit is intimately fixed to the flexible NFC device.
  • the device comprises a controller 2 (NFC), a direct connection between alternative power supply means and the component (SIM), a field detection circuit (27), a circuit for charge in normal mode, a discharge blocking circuit in the absence of electromagnetic field (34).
  • NFC controller 2
  • SIM direct connection between alternative power supply means and the component
  • 27 field detection circuit
  • 34 discharge blocking circuit in the absence of electromagnetic field
  • the additional circuit 20 further comprises an electromagnetic field detector 27 connected to the power manager of the SIM card.
  • the function of the manager 34 is to detect the presence of a radio frequency field and to allow the discharge of the battery b3 only during an RF communication.
  • the manager 34 may comprise at least the functions of the circuit 24 (FIG. 4), a program loaded into a program memory of a controller of the manager.
  • the function above can be done in hardwired form.
  • the manager can be a component of type MAX11710.
  • the circuit 34 may comprise in particular a logic gate or an electromagnetic switch or a relay that isolates the battery b3 from the SIM. This makes it possible not to discharge the battery or capacity (s) C3 unnecessarily by a possible leakage current. When a sufficient field of communication is detected, the discharge of the battery and / or capacity (s) is authorized to supply the SIM.
  • This manager may include means configured to allow charging of the battery b3 and / or capacity (s) C3 especially when the device is energized and / or prevent its discharge in the absence of RF radio communication.
  • the alternative power supply means b3, c3 can intervene in support or substitution of the power supply of the component (SIM) in the event of detection of insufficient current / voltage at their terminal. It can also intervene in case of detection of an operating mode in which the power supply is provided by the RF electromagnetic field such as the EC card emulation mode.
  • FIG. 6 illustrates a communication device 50 comprising a circuit 2 (NFC or CLF) in communication and power supply relationship with a SIM card or UICC (universal integrated circuit card) compliant with the ISO / IEC 14443 standard. .
  • NFC or CLF circuit 2
  • SIM card or UICC universal integrated circuit card
  • the UICC component or the corresponding electronic chip can be removable or welded into the device. Communication between the SIM and the CLF is done by SWP link.
  • the CLF controller can be factory-installed in this unit.
  • the apparatus may comprise, in factory assembly or in a removable manner, at the junction point (I) at the SIM, the additional circuit 40 of the invention, in accordance with the circuits 20 or 30 of FIG. 4 or 5.
  • This circuit is connected to the SIM by the point (I) corresponding to the point "Vcc" of the connector of the mobile.
  • FIG. 7 illustrates the preferred steps of the radiofrequency communication method implemented by the various previous embodiments.
  • This method requires at least one electronic component and means for selecting a power supply of this component from an electromagnetic field of an external reader.
  • the method of the invention comprises a step of alternating and direct supply of the component independently of a main battery. This power supply is implemented only to compensate for any lack of current or supply voltage of the component coming from the electromagnetic field.
  • Step 50 illustrates this supply by commissioning the complementary battery b3 or at least one capacitor C3 in the circuits 20, 30 or 40.
  • This commissioning can be triggered in several individual or cumulative ways with each other according to different variants described below.
  • the commissioning can be triggered by a step 60 of direct action, performed for example manually, on a switch (not shown) installed on a connection 23 (FIG 4) connecting b3 or c3 directly to the component including the point (I).
  • This switch can be housed in or also functionally constituted by the component 34.
  • step 100 the method comprises a step of detecting a current requirement that occurs when a voltage across the SIM is less than 1.8V or 1.9V; In the positive case, the commissioning of the battery B3 or capacitor C3 intervenes. In the negative case, the program loops back to 200, 300 or goes into a standby or stationary state (0).
  • the detection 100 can be simply physical because of a potential difference state at the point (I) between the connections 13 and 23.
  • a radio frequency field is detected, in particular by a detector 27 comprising a coil and being connected to the manager 34;
  • This detector is configured to transmit, for example in logical form, a high or low state to the manager 34 according to a presence or not of a radiofrequency field having expected characteristics; this detection is implemented by the circuit 27 of FIG.
  • the program can loop back directly on the operation 50 (path f) or on the step 300 (path a) or alternatively according to another mode of operation, on the test 100 previously described
  • the program can loop on a test (300) or standby (0).
  • the method comprises a step of detecting an operating mode in non-contact card (EC) emulation.
  • This mode can be triggered in various ways, including by default, by voluntary action, by communication protocol in the case in particular of exchanges between mobile phones in communication called "Peer to Peer”), in the case where the battery is absent, discharged or deactivated when the power is turned off 5.
  • the program can be connected directly to the operation 50 of putting into operation an alternative power supply b3, C3 (path b); It can alternatively connect to at least one test additional 100 (voltage detection ⁇ 1.8V) (path d) and / or on test 200 (RF field detection);
  • the program or method loops back to the beginning or to a waiting state (0) or to one of the other tests (100, 200, 300).
  • the radiofrequency communication method with a device has a non-contact card (EC) emulation mode or equivalent configuration.
  • EC non-contact card
  • the method implements a communication step in an emulation mode (EC) contactless card or equivalent configuration, said mode having a component supply configuration (SIM) by a source of electromagnetic origin in substitution of a first source (B1) comprising a battery;
  • EC emulation mode
  • SIM component supply configuration
  • the process is distinguished in that it comprises:
  • the component is provided with an alternating power source, such as a battery or at least one capacitor,
  • the device is preferably a mobile phone supplying a battery NFC circuit B1 and the component is preferably a subscriber identification module, such as a SIM card and / or an NFC circuit.
  • the NFC component can be housed in the SIM card or another card such as an SD or micro SD card.
  • the micro SD card can therefore also include a battery b3 and / or capacities c3 according to the invention with the management circuits 20, 30 or 40.
  • FIG. 8 illustrates an embodiment of the invention in the form of at least one electronic component
  • the circuit 40 is miniaturized and is arranged in a compact manner on an electronic component to be powered (SIM), for example according to the EC mode.
  • SIM electronic component to be powered
  • the component (SIM) is here in CMS form (surface-mounted component) of parallelepiped shape; It comprises the connections or electrical lugs C1 to C5 corresponding to the contact areas of a smart card.
  • CMS surface-mounted component
  • the circuit 40 is compacted to the dimensions of the surface of the CMS component also in CMS component form with at least 2 connection tabs 43, 44 respectively corresponding to the connection 23 and ground. These two tabs are here connected in particular by welding to the legs C5 and Cl of the SIM.
  • the component (SIM) can be replaced by the component (NFC), the element 40 then comprises one of the circuits 20 or 30 comprising in particular the auxiliary battery b3 or capacitor C3, the power manager 24 or 34.
  • the legs C1 - C5 are adapted accordingly to the necessary connections of the component 2 (NFC).
  • the tab 43 corresponds to the connection 23 of the manager 24, 34 (FIG 4 or 5).
  • the invention proposes a particular NFC wire component with an integrated energy source integrated or juxtaposed to deliver energy immediately to a component to power, such as a SIM card without waiting for a transformation of electromagnetic energy which may include failure or insufficiency.
  • the invention makes it possible to deliver a more calibrated / stabilized voltage in the case of transformation and supply of energy by radiofrequency field.
  • the invention provides one or more modes of assistance to the main battery of the NFC system; These modes can be concretized by an assistance program (AS) in the NFC controller and an I / O port connected to the power manager 24 of the component or components; These modes can be configured to provide present radio frequency field information and main battery power absent. A signal on this port is used by the alternative power management means 24, 34 for commissioning the battery or AC capacity to power the component or any other component or circuit.
  • AS assistance program
  • I / O port connected to the power manager 24 of the component or components
  • a signal on this port is used by the alternative power management means 24, 34 for commissioning the battery or AC capacity to power the component or any other component or circuit.
  • the invention provides that the NFC controller itself delivers the detected field presence information by its own antenna Al (in this case, the means 27 of FIG. 5 is useless, its function being performed by the NFC controller);
  • the NFC controller may deliver battery information discharged or absent or out of service.
  • provision is made for a configuration in which at least one I / O port is kept operational contrary to the current configuration of the controllers.
  • the invention provides an adaptation in this sense of the current operating software of the NFC controller because in the prior art, the I / O ports of the NFC controller are inactive in the case of absence of main battery or non-power mode of the NFC controller.
  • NFC controller by the main battery.
  • the manager 24 or 34 can be integrated in the NFC controller so as to deliver alternative energy to the component (SIM).
  • SIM alternative energy to the component
  • the invention provides an NFC controller with a field detection device (such as 27), which makes it necessary to operate in 3V for the SIM in activated battery mode. (In this case, there is no current drawn from the alternative source when the radio frequency field is present and the phone is turned on).
  • the NFC controller may be configured to deliver or exploit field presence information and / or information relating to a level of main battery energy absent or present so as to turn on or off the AC source to power the component.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a radio-frequency communication device (F1) comprising: connection means (3) electrically connecting an integrated circuit component (SIM), or intended for this purpose; and selection means (2, 4) for selecting an electromagnetic current (RF) power supply for the component. The device is characterised in that it comprises an alternative power supply source (b3, c3) for powering the component (SIM) during the reception of an electromagnetic field as soon as the electromagnetic power supply current received by the component is insufficient. The invention also relates to the corresponding method.

Description

Dispositif de communication radiofréquence comportant une alimentation d'origine radiofréquence assistée  Radio frequency communication device comprising a power supply of radio frequency origin assisted
L'invention concerne un dispositif de communication radiofréquence comportant des moyens d'alimentation en énergie électrique d'origine électromagnétique pour alimenter un composant. The invention relates to a radiofrequency communication device comprising electromagnetic energy supply means for supplying a component.
En particulier, l'invention concerne un téléphone portable (mobile) comprenant une batterie alimentant en énergie un circuit radiofréquence de proximité NFC (Near Field Communication en anglais) et mettant en œuvre un mode dans lequel tout ou partie de l'alimentation en énergie du mobile est coupé, notamment l'alimentation d'un module d'identification d'abonné (SIM, USIM) fixe ou amovible au profit d'une alimentation d'origine électromagnétique. In particular, the invention relates to a mobile phone (mobile) comprising a battery supplying power to a Near Field Communication (NFC) proximity radio frequency circuit and implementing a mode in which all or part of the power supply of the mobile is cut, including the power of a subscriber identification module (SIM, USIM) fixed or removable in favor of a supply of electromagnetic origin.
Le circuit radiofréquence de proximité NFC est de préférence intégré dans un flexible configuré pour s'intercaler entre la carte SIM et son connecteur dans le mobile. Toutefois, le circuit NFC peut être intégré d'usine sous forme amovible ou fixe dans des dispositifs de télécommunication, tels que téléphones portables, assistants personnels PDA, ordinateurs portables, etc. The NFC radiofrequency circuit is preferably integrated in a hose configured to be interposed between the SIM card and its connector in the mobile. However, the NFC circuit can be factory integrated in removable or fixed form in telecommunication devices, such as mobile phones, PDA PDAs, laptops, etc.
Les normes ISO/IEC 14443 et ETSI TS 102 622 V7 prévoient un mode de fonctionnement (Emulation carte sans contact) de la communication radiofréquence de proximité dans lequel le téléphone portable (ou au moins la partie radiofréquence de proximité du téléphone, comprenant un contrôleur NFC avec un module d'identification d'abonné) se comporte comme une carte sans-contact ou une étiquette électronique passive vis-à-vis d'un lecteur émetteur de champ électromagnétique. Ce mode émule une carte sans-contact ou équivalent pour le téléphone mobile. Aujourd'hui, dans le mode de fonctionnement « carte sans contact » d'un téléphone avec fonction NFC peut ne pas être totalement satisfaisant ou conforme au standard ou peut présenter des défaillances de fonctionnement . The ISO / IEC 14443 and ETSI TS 102 622 V7 standards provide for a mode of operation (contactless card emulation) of the radio frequency communication of proximity in which the mobile phone (or at least the radiofrequency part of the telephone, comprising an NFC controller with a subscriber identification module) behaves like a contactless card or a passive electronic tag vis-à-vis an emitter reader electromagnetic field. This mode emulates a contactless or equivalent card for the mobile phone. Today, in the mode of "contactless card" operation of a phone with NFC function may not be completely satisfactory or compliant with the standard or may have malfunctions.
En outre, il est difficile d'apporter une fonction NFC à un téléphone qui est dépourvu d'un contrôleur NFC. C'est d'autant plus difficile si on souhaite un lien SWP (Single Wire Protocol) entre le contrôleur NFC et la SIM du téléphone portable. In addition, it is difficult to bring an NFC function to a phone that does not have an NFC controller. This is even more difficult if you want a SWP (Single Wire Protocol) link between the NFC controller and the SIM of the mobile phone.
Les tentatives d'intégration d'un circuit NFC ou radiofréquence dans un téléphone se heurtent à des problèmes de dimensions et/ou d'espace disponible dans le téléphone pour intégrer un circuit NFC ainsi qu'au problème de l'environnement métallique du téléphone engendrant des perturbations électromagnétiques. Elles se heurtent également à un impact néfaste plus ou moins imprévisible de la batterie du téléphone sur les caractéristiques radiofréquences de la fonction NFC. Attempts to integrate an NFC or radiofrequency circuit in a telephone face problems of size and / or space available in the phone to integrate an NFC circuit and the problem of the metal environment of the phone generating electromagnetic disturbances. They also face a more or less unpredictable impact of the phone battery on the radio frequency characteristics of the NFC function.
Les différentes contraintes d' implémentation de ce système NFC dans un environnement téléphone mobile font que le fonctionnement sans-contact se dégrade. Ces dégradations sont liées à deux principales problématiques : The different implementation constraints of this NFC system in a mobile phone environment mean that contactless operation is degraded. These impairments are related to two main issues:
Une dimension d' antenne plus réduite que celle d'une carte sans-contact ;  An antenna dimension smaller than that of a contactless card;
Un environnement radio fréquence très hostile : obstacles métalliques et perturbations par les autres radiofréquences .  A very hostile radio frequency environment: metallic obstacles and disturbances by other radio frequencies.
La dégradation de fonctionnement reste encore acceptable quand le système sans-contact est alimenté par le téléphone, par contre elle devient très importante quand le téléphone ne fournit pas l'énergie (batterie déchargée ou téléphone éteint, le système sans-contact (circuit NFC + composant tel qu'une carte) est exclusivement alimenté par le champ radiofréquence RF. Ces systèmes sans-contact NFC vont être utilisés dans des parcs installés (transport, paiement) où la qualité requise de communication est identique à celle d'une carte sans- contact ; I 1 est donc impératif de garantir un fonctionnement à l'utilisateur quel que soit l'état énergétique de son téléphone. The degradation of operation is still acceptable when the contactless system is powered by the phone, however it becomes very important when the phone does not provide power (battery discharged or phone switched off, the contactless system (NFC + component circuit such as a card) is exclusively powered by the RF radio frequency field. These NFC contactless systems will be used in installed parks (transport, payment) where the required quality of communication is identical to that of a contactless card; I 1 is therefore imperative to ensure operation to the user regardless of the energy status of his phone.
La demande de brevet EP 2 088 540 décrit un dispositif portable électronique pour alimenter un circuit électronique par batterie en cas de détection d'un champ électromagnétique, le circuit n'étant pas alimenté en position de veille. Ce dispositif comprend des moyens de sélection pour sélectionner une alimentation de ce circuit provenant de la batterie, lors d'une présence de champ électromagnétique. Ce dispositif évite une alimentation de veille par batterie. The patent application EP 2,088,540 describes an electronic portable device for supplying an electronic circuit by battery in the event of detection of an electromagnetic field, the circuit not being powered in the standby position. This device comprises selection means for selecting a supply of this circuit coming from the battery, during an electromagnetic field presence. This device avoids battery standby power.
La demande de brevet JP 8 055198 décrit une carte à circuit intégré sans-contact et à batterie qui permet d'économiser la batterie lors de la réception d' un champ électromagnétique. The patent application JP 8 055198 discloses a non-contact and battery IC card that saves the battery when receiving an electromagnetic field.
La carte comprend un interrupteur qui déconnecte le circuit intégré de la batterie lors de la réception d'un champ électromagnétique. Cet interrupteur connecte le circuit intégré à la batterie lorsque le circuit intégré a besoin d'énergie.  The card includes a switch that disconnects the integrated circuit of the battery when receiving an electromagnetic field. This switch connects the integrated circuit to the battery when the integrated circuit needs power.
On connaît d'autre part des cartes sans-contact dotées d'une batterie fine dans l'épaisseur du corps de carte pour améliorer la portée de communication sans-contact ou permettre des fonctions arithmétiques ou cryptographique intégrées ou afficher des données. De telles cartes sont commercialisées notamment par la société « Solicore ». Also known are contactless cards with a thin battery in the thickness of the card body to improve the range of contactless communication or allow arithmetic or cryptographic functions integrated or display data. Such cards are marketed in particular by the company "Solicore".
Ces cartes comprennent des circuits radiofréquences passifs recevant directement le flux électromagnétique pour s'alimenter directement. Il ne s'agit pas de circuit NFC alimentant un circuit intégré ou autre composant distinct et externe au circuit radiofréquence . Ces cartes ne mettent pas en œuvre une fonction lecteur d'objet sans contact ou de carte sans contact. These cards include passive radio frequency circuits directly receiving the electromagnetic flux to feed directly. It is not NFC circuit powering an integrated circuit or other component separate and external to the radio frequency circuit. These cards do not implement a contactless object reader function or contactless card.
Le problème à résoudre est de garantir une même qualité de fonctionnement de l'application sans contact, que le système sans contact soit alimenté par le téléphone ou par le champ RF. The problem to be solved is to guarantee the same quality of operation of the contactless application, whether the contactless system is powered by the telephone or by the RF field.
L'invention consiste à intégrer ou associer une source d'énergie telle qu'une batterie fine, au moins une capacité au composant NFC ou CLF pour « booster» ou répondre aux besoins de consommation de courant, notamment ponctuels ou lors des transactions radiofréquences . Ces besoins peuvent survenir pendant certaines phases d'une transaction sans- contact radiofréquences , notamment la phase initiale ou de démarrage. L^invention permet de garantir un fonctionnement normal du composant via une consommation normale de courant du composant pendant toute la durée de la transaction radiofréquence . La batterie supplémentaire est chargée, de préférence par la batterie principale du téléphone quand elle est opérationnelle. The invention consists in integrating or associating a power source such as a thin battery, at least one capacitance to the NFC or CLF component to "boost" or meet the power consumption needs, particularly punctual or during radio frequency transactions. These needs may arise during certain phases of a radio frequency contactless transaction, including the initial phase or start-up phase. The invention makes it possible to guarantee normal operation of the component via a normal consumption of current of the component throughout the duration of the radiofrequency transaction. The extra battery is charged, preferably by the phone's main battery when it is operational.
L'invention n'a pas d'impact significatif sur le fonctionnement du dispositif hôte tel un mobile, la source alternative d'énergie étant rechargée avec des courants extrêmement faibles qui ne perturbent pas le fonctionnement du dispositif hôte. Contrairement à une carte à batterie fine de l'art antérieur visée précédemment, l'invention n'amène pas un mode permanent d'énergie mais une garantie d'utiliser cette énergie uniquement dans le cas d'urgence du téléphone déchargé ou éteint, ceci permet d'envisager l'utilisation d'objets de stockage d'énergie ayant de très faibles capacités . L'invention a donc pour objet un dispositif de communication radiofréquence comportant des moyens de connexion connectant ou destinés à connecter électriquement un composant à circuit intégré (SIM), des moyens d'alimentation de ce composant (SIM) en courant d'origine électromagnétique (RF) ; The invention has no significant impact on the operation of the host device such as a mobile, the alternative source of energy being recharged with extremely low currents that do not disturb the operation of the host device. Unlike a prior art thin-film card referred to above, the invention does not bring about a permanent mode of energy but a guarantee of using this energy only in the emergency case of the unloaded or extinguished telephone, this allows to consider the use of energy storage objects with very low capacities. The subject of the invention is therefore a radiofrequency communication device comprising connection means connecting or intended to electrically connect an integrated circuit component (SIM), means for supplying this component (SIM) with electromagnetic current ( RF);
II se distingue en ce qu'il comprend une source alternative d' alimentation pour alimenter ledit composant (SIM) lors d'une réception d'un champ électromagnétique dès que le courant d'alimentation d'origine électromagnétique reçu par le composant est insuffisant.  It is distinguished in that it comprises an alternative supply source for supplying said component (SIM) when receiving an electromagnetic field as soon as the supply current of electromagnetic origin received by the component is insufficient.
Ainsi, l'invention permet de stimuler ou compenser ou pallier l'insuffisance d'alimentation principale ou d'origine radiofréquence prévue par le dispositif. Selon d'autres caractéristiques du dispositif : Thus, the invention makes it possible to stimulate or compensate for or remedy the main power supply insufficiency or radiofrequency origin provided by the device. According to other characteristics of the device:
- Il comprend un mode (EC) de communication en émulation carte sans-contact ou configuration équivalente, ledit mode présentant une configuration d'alimentation du composant (SIM) par une source d'origine électromagnétique (RF) en substitution d'une première source (Bl) comprenant une batterie principale, des moyens de maintien d'un niveau d'alimentation en courant du composant par ladite source alternative, directement auprès de lui, dans le cas d'un besoin de courant d'alimentation au cours d'une communication radiofréquence dans ce mode d'émulation (EC) ; - It comprises a communication mode (EC) in contactless card emulation or equivalent configuration, said mode having a component power supply configuration (SIM) by an electromagnetic source (RF) in substitution of a first source (B1) comprising a main battery, means for maintaining a current supply level of the component by said alternative source, directly to it, in the case of a power supply requirement during a radio frequency communication in this emulation mode (EC);
- La source alternative comprend une batterie secondaire et/ou au moins une capacité ;  - The alternative source comprises a secondary battery and / or at least one capacitor;
- La source alternative est rechargeable par une batterie principale du dispositif hébergeant le système NFC ; - The alternative source is rechargeable by a main battery of the device hosting the NFC system;
- La source alternative intervient en cas de détection d'un mode de fonctionnement dans lequel l'alimentation en courant est d'origine électromagnétique ;  - The alternative source intervenes in case of detection of a mode of operation in which the power supply is of electromagnetic origin;
- Le composant (SIM) comprend un module d'identification d'abonné à un réseau de télécommunication ou une puce de circuit intégré ou une carte du type UICC. - The component (SIM) comprises a subscriber identification module to a telecommunications network or an integrated circuit chip or a UICC type card.
- Le dispositif comprend un contrôleur NFC et une connexion reliant ou destinée à relier le contrôleur NFC au composant (SIM) pour lui fournir une alimentation d'origine électromagnétique, une connexion directe de la source alternative au composant (SIM) ou via un moyen gestionnaire de l'alimentation alternative et/ou moyen de conditionnement de ladite source alternative.  - The device comprises an NFC controller and a connection connecting or intended to connect the NFC controller to the component (SIM) to provide a supply of electromagnetic origin, a direct connection of the alternative source to the component (SIM) or via a managerial means alternating power supply and / or conditioning means of said alternative source.
- Le dispositif comprend un moyen gestionnaire d'alimentation alternative pour gérer une alimentation directe alternative du composant (SIM) , un circuit de charge de la source alternative connecté à la batterie principale, un circuit de détection de champ électromagnétique intervenant avec ledit gestionnaire pour inhiber une décharge de la source alternative vers le composant (SIM) en l'absence de détection de champ électromagnétique et pour autoriser la décharge dans le cas contraire ; The device comprises an alternative power management means for managing an alternating direct supply of the component (SIM), a load circuit of the AC source connected to the main battery, an electromagnetic field detection circuit intervening with said manager to inhibit a discharge of the alternative source to the component (SIM) in the absence of electromagnetic field detection and to authorize the discharge in the opposite case;
La batterie ou au moins la capacité est fixée sur une portion d'un dispositif NFC flexible comprenant l'antenne ;  The battery or at least the capacitance is attached to a portion of a flexible NFC device including the antenna;
Le dispositif comporte un contrôleur NFC, des plots de connexion pour connecter d'une part une batterie principale d'alimentation d'un dispositif hôte et d'autre part un module d'identification d'abonné (SIM) ; - La batterie et/ou au moins la capacité et/ou ledit moyen gestionnaire d'alimentation alternative sont fixés ou intégrés à un composant électronique qui peut constituer ou comprendre un contrôleur NFC et/ou un module d'identification d'abonné (SIM) ; The device comprises an NFC controller, connection pads for connecting on the one hand a main battery of a host device and on the other hand a subscriber identification module (SIM); The battery and / or at least the capacity and / or said alternative power management means are fixed or integrated in an electronic component which can constitute or comprise an NFC controller and / or a subscriber identification module (SIM); ;
- Le dispositif hôte est un téléphone mobile.  - The host device is a mobile phone.
L'invention a également pour objet un procédé de communication radiofréquence mettant en œuvre au moins un composant à circuit intégré (SIM) et des moyens de sélection d'une alimentation en courant d'origine électromagnétique pour alimenter ce composant ; The invention also relates to a radiofrequency communication method implementing at least one integrated circuit component (SIM) and means for selecting a power supply of electromagnetic origin to supply this component;
Le procédé se distingue en ce qu'il comprend une étape de fourniture d'une alimentation du composant (SIM) par une source alternative lors d'une réception d'un champ électromagnétique dès que le courant d'alimentation d'origine électromagnétique reçu par le composant est insuffisant . L'invention permet ainsi un mode fonctionnement du mobile conforme aux standards mais alimenté au moins sur une courte durée de démarrage de transaction comme s'il était en permanence en dehors du mode émulation carte. L'invention permet d'avoir à tout moment la garantie d'un fonctionnement optimisé du système NFC dans un téléphone mobile qu'il soit ajouté par la suite ou prévu d'usine.  The method is characterized in that it comprises a step of supplying a power supply of the component (SIM) by an alternative source when receiving an electromagnetic field as soon as the supply current of electromagnetic origin received by the component is insufficient. The invention thus allows a mode of operation of the mobile compliant with the standards but powered at least for a short period of transaction start as if it was permanently outside the map emulation mode. The invention makes it possible to have at any time the guarantee of an optimized operation of the NFC system in a mobile phone whether it is subsequently added or planned by the factory.
L'invention est décrite en relation avec des exemples illustrés sur les figures suivantes: The invention is described in connection with examples illustrated in the following figures:
- La figure 1 illustre un système NFC souple F de l'art antérieur;  FIG. 1 illustrates a flexible NFC system F of the prior art;
La figure 2 illustre le système F en cours d'insertion dans un appareil de télécommunication 5; - La figure 3 illustre une vue externe d'un système NFC souple conforme à l'invention; Figure 2 illustrates the system F being inserted into a telecommunication apparatus 5; FIG. 3 illustrates an external view of a flexible NFC system according to the invention;
La figure 4 illustre un premier mode de réalisation du circuit d'alimentation conforme à l'invention ;  FIG. 4 illustrates a first embodiment of the supply circuit according to the invention;
- La figure 5 illustre un second mode de réalisation du circuit d'alimentation conforme à l'invention ;  FIG. 5 illustrates a second embodiment of the supply circuit according to the invention;
La figure 6 illustre un appareil doté à sa fabrication du circuit d'alimentation conforme à l'invention ;  Figure 6 illustrates an apparatus provided in its manufacture of the supply circuit according to the invention;
La figure 7 illustre des étapes du procédé conformément à plusieurs modes de mise en œuvre ;  Figure 7 illustrates process steps according to several modes of implementation;
La figure 8 illustre un composant de type CMS agencé avec tout ou partie de l'invention ; Il décrit en particulier, un contrôleur NFC ou SIM combiné à un circuit comportant une mini batterie ou des capacités.  Figure 8 illustrates a CMS-type component arranged with all or part of the invention; In particular, it describes an NFC or SIM controller combined with a circuit comprising a mini battery or capacitors.
La figure 1 illustre un système NFC souple de l'art antérieur ; il comprend un support souple SI portant une antenne radio f réquence Al, un contrôleur NFC (2) , des moyens de gestion d'alimentation (4) du contrôleur NFC reliés ou étant configurés pour pouvoir être reliés à la batterie et/ou à l'antenne radiofréquence Al, un connecteur (3, 6) à plots 3 et à plages de contact 6 respectivement débouchant ou disposées sur une des deux faces principales d'une partie destinée à venir s' interfacer entre un connecteur 10 (connecteur à lames ou ressorts) d'appareil de télécommunication 5 pour module SIM et des plages de contact du module SIM. L'appareil peut être aussi un appareil de communication comme un assistant personnel ou tout appareil comportant une batterie que l'on souhaite doter de moyens de communication sans contact. Le cas échéant, le contrôleur NFC peut comprendre en interne les moyens de gestion d'alimentation 4. Ce système (SI) vient se loger dans un dispositif hôte 5 tel un appareil de télécommunication, l'antenne pouvant être, par exemple, plaquée contre une batterie Bl (fig. 1) de ce dispositif hôte. Figure 1 illustrates a flexible NFC system of the prior art; it comprises a flexible support SI carrying a radio frequency antenna Al, an NFC controller (2), power management means (4) of the NFC controller connected to or configured to be connected to the battery and / or to the radiofrequency antenna A1, a connector (3, 6) with pads 3 and contact pads 6 respectively opening or arranged on one of the two main faces of a portion intended to interface with a connector 10 (blade connector or springs) of telecommunication apparatus 5 for SIM module and contact pads of the SIM module. The apparatus may also be a communication device such as a personal assistant or any device comprising a battery that is to be provided with contactless communication means. Where appropriate, the NFC controller may internally include the power management means 4. This system (SI) is housed in a host device 5 such as a telecommunications device, the antenna can be, for example, pressed against a battery B1 (FIG 1) of this host device.
A la figure 2, le système NFC souple (F) est en cours d'insertion dans un appareil de télécommunication 5. La partie connecteur 3, 6 est destinée à s'interfacer entre le connecteur 10 du mobile 5 et un module SIM maintenu (par un organe de maintien ou volet 11) en contact avec le connecteur 10. La partie de l'antenne Al peut se plier de manière flexible et se placer par exemple, contre la surface principale de la batterie (Bl) . La figure 3 illustre un système NFC souple Fl comprenant le système souple de l'art antérieur F équipé du dispositif de l'invention. Il comprend notamment une batterie fine souple b3 et un circuit d'alimentation supplémentaire 40 conforme à l'invention pour gérer l'utilisation de cette batterie supplémentaire comme détaillé ci-après. In FIG. 2, the flexible NFC system (F) is being inserted in a telecommunication apparatus 5. The connector part 3, 6 is intended to interface between the connector 10 of the mobile unit 5 and a maintained SIM module (FIG. by a holding member or flap 11) in contact with the connector 10. The part of the antenna Al can flexibly bend and be placed, for example, against the main surface of the battery (Bl). FIG. 3 illustrates a flexible NFC system F1 comprising the flexible system of the prior art F equipped with the device of the invention. It comprises in particular a flexible thin battery b3 and an additional power supply circuit 40 according to the invention to manage the use of this additional battery as detailed below.
A la figure 4 est illustré un schéma bloc d'un mode de réalisation d'un dispositif d'alimentation 20 pour dispositif de communication radiofréquence Fl conforme à l'invention ; le dispositif de communication comporte au moins un composant à circuit intégré (SIM ou autre) ou des moyens de connexion à ce composant (SIM), comme précédemment, des moyens 2 , 4 de sélection d'une alimentation en courant de ce composant provenant d'un champ électromagnétique d'un lecteur externe (T, A2 ) . In Figure 4 is illustrated a block diagram of an embodiment of a supply device 20 for radio frequency communication device Fl according to the invention; the communication device comprises at least one integrated circuit component (SIM or other) or connection means to this component (SIM), as previously, means 2, 4 for selecting a current supply of this component from an electromagnetic field of an external reader (T, A2).
Dans l'exemple, le dispositif est le système NFC souple (F) qui comprend une puce de circuit intégré 2 comme composant radiofréquence ou contrôleur de type NFC (CLF) ; Le contrôleur NFC est relié à une antenne Al d'émission et/ou réception de champ électromagnétique ; Le contrôleur 2 comprend des moyens de connexion 13 à la batterie ; Ces moyens de connexion comprennent en l'occurrence des plages de contact du type ISO 7816 (3, 6) . In the example, the device is the flexible NFC system (F) which comprises an integrated circuit chip 2 as a radiofrequency component or NFC type controller (CLF); The NFC controller is connected to a transmitting antenna Al and / or electromagnetic field reception; The controller 2 comprises connection means 13 to the battery; These connection means comprise contact pads of the ISO 7816 type (3, 6).
Selon une caractéristique d'un mode de réalisation de l'invention, on prévoit des moyens alternatifs d'alimentation b3 du composant indépendamment de la batterie Bl de l'appareil de télécommunication hôte ; Ces moyens alternatifs sont configurés pour pallier une éventuelle insuffisance de courant / tension d'alimentation du composant SIM provenant du champ électromagnétique. According to a characteristic of an embodiment of the invention, provision is made for alternating means for supplying the component B3 independently of the battery B1 of the host telecommunication apparatus; These alternative means are configured to overcome a potential shortage of current / supply voltage SIM component from the electromagnetic field.
Le composant est ici une puce d'identification d'abonné mais pourrait être tout ou partie de circuit d'un appareil associé. The component here is a subscriber identification chip but could be all or part of a circuit of an associated device.
Le circuit 2 (CLF) est conçu pour fournir une tension normalisée à la puce SIM comprise entre 1,8 et 3 Volts. Circuit 2 (CLF) is designed to provide a standardized voltage to the SIM chip between 1.8 and 3 volts.
Le moyen de connexion 3 est en fait dans l'exemple un moyen d'interconnexion (I) qui comporte un premier connecteur 13 pour connecter le contrôleur NFC (2) ; D'autre part, le moyen d'interconnexion comporte aussi un second connecteur (3, 6) pour connecter un module d'identification d'abonné (SIM) et le connecteur 10 de l'appareil de télécommunication portable 5.  The connection means 3 is in fact in the example an interconnection means (I) which comprises a first connector 13 for connecting the NFC controller (2); On the other hand, the interconnection means also comprises a second connector (3, 6) for connecting a subscriber identification module (SIM) and the connector 10 of the portable telecommunication device 5.
Selon un autre mode de réalisation (fig.4), le dispositif de communication radiofréquence F2 comprend : According to another embodiment (FIG. 4), the radiofrequency communication device F2 comprises:
- un composant à circuit intégré (SIM) et/ou des moyens de connexion 3, 6 à ce composant SIM pour au moins l'alimenter en courant / tension ;  an integrated circuit component (SIM) and / or connection means 3, 6 to this SIM component for at least supplying current / voltage;
des moyens de connexion 3, 6, à une première source d'énergie Bl comprenant une batterie et/ou une seconde source T mettant en œuvre un champ électromagnétique RF 14443; un mode de fonctionnement EC en émulation carte sans contact ou un fonctionnement radiofréquence équivalent,connection means 3, 6, to a first energy source B1 comprising a battery and / or a second source T implementing an RF electromagnetic field 14443; an EC operating mode in contactless card emulation or equivalent radio frequency operation,
- des moyens de gestion d'alimentation 2, 4 du composant selon ce mode, configurés pour couper l'alimentation provenant de ladite première source d'énergie Bl et pour fournir à la place une alimentation provenant de ladite seconde source T externe. Cette source émet un champ électromagnétique (RF 14443) à travers une antenne émettrice A2. - Power management means 2, 4 of the component according to this mode, configured to cut the power from said first source of energy B1 and to provide instead a supply from said second external source T. This source emits an electromagnetic field (RF 14443) through a transmitting antenna A2.
Selon une caractéristique de ce mode de réalisation, le dispositif F2 comprend : According to one characteristic of this embodiment, the device F2 comprises:
une troisième source d'énergie b3 telle une batterie secondaire ou annexe ou au moins une capacité C3 (non représentée) pour l'alimentation directe du composant SIM dans ledit mode (EC) ,  a third power source b3 such as a secondary or auxiliary battery or at least one capacitor C3 (not shown) for the direct supply of the SIM component in said mode (EC),
- des moyens directs 23 (par exemple, un fil conducteur) pour la fourniture d'alimentation au composant par cette troisième source d'énergie b3 en cas d'une alimentation du composant insuffisante ou non pourvue par ladite seconde source (T) pendant une communication radiofréquence RF.  direct means 23 (for example, a conducting wire) for the supply of power to the component by this third power source b3 in the event of a supply of the component that is insufficient or not provided by the said second source (T) during a RF radio communication.
Les moyens directs 23 de fourniture d'alimentation peuvent comprendre dans un exemple simple, une simple connexion directe pour l'alimentation électrique au composant SIM reliant la source b3 et/ou c3 au composant (SIM) . The direct power supply means 23 may comprise in a simple example, a simple direct connection for the power supply to the SIM component connecting the source b3 and / or c3 to the component (SIM).
La batterie annexe est du type souple et plat d'environ 300 μιτι d'épaisseur. Elle peut être fixée sur le dispositif NFC souple, par exemple au niveau de la surface interne de l'antenne Al (fig. 3) . Avantageusement, la batterie souple ne couvre pas entièrement la surface de couplage de l'antenne Al pour maintenir un bon couplage radiofréquence . Selon une caractéristique de l'invention, les moyens alternatifs d'alimentation b3, C3 sont rechargeables. Dans l'exemple, ils sont ici rechargeables par la batterie principale Bl . Toutefois, d'autres modes de rechargement sont possibles directement ou par exemple via des capteurs photovoltaïques , etc. The auxiliary battery is of the flexible and flat type of approximately 300 μιτι thick. It can be fixed on the flexible NFC device, for example at the inner surface of the antenna Al (FIG 3). Advantageously, the flexible battery does not completely cover the coupling surface of the antenna Al to maintain a good radio frequency coupling. According to a characteristic of the invention, the alternative power supply means b3, C3 are rechargeable. In the example, they are here rechargeable by the main battery Bl. However, other charging methods are possible directly or for example via photovoltaic sensors, etc.
Le dispositif comporte donc à cet effet un circuit de charge 24 ou gestionnaire de charge et/ou décharge de la batterie annexe b3 ou C3. The device therefore comprises for this purpose a charging circuit 24 or load manager and / or discharge battery appendix b3 or C3.
Ce circuit 24 est relié directement à la batterie principale Bl par une connexion 25 pour y puiser l'énergie de charge. This circuit 24 is connected directly to the main battery B1 via a connection 25 to draw the charging energy.
De préférence, le dispositif F2 peut comprendre une diode 26 ou équivalente pour délivrer une tension atténuée par rapport à celle délivrée par la batterie b3; L'atténuation est ici de 0,4 Volts ; La diode est disposée sur la liaison 23 avant de connecter le module SIM. Preferably, the device F2 may comprise a diode 26 or the like to deliver a voltage attenuated with respect to that delivered by the battery b3; The attenuation here is 0.4 volts; The diode is disposed on the link 23 before connecting the SIM module.
Grâce à cette diode, le circuit de gestion de décharge délivre une tension (1,9V) qui est juste au dessus de la tension minimale (1,8V) fournie par le contrôleur CLF (2) . La batterie annexe b3 délivre une tension régulée de 2,3 V à travers le gestionnaire de décharge 24. With this diode, the discharge management circuit delivers a voltage (1.9V) which is just above the minimum voltage (1.8V) provided by the CLF controller (2). The auxiliary battery b3 delivers a regulated voltage of 2.3 V through the discharge manager 24.
A la figure 5, un circuit additionnel d'alimentation 30 comprend la batterie annexe souple et l'électronique de gestion de charge / décharge 34 et la diode 26. Ce circuit additionnel est intimement fixé au dispositif NFC souple. In FIG. 5, an additional power supply circuit 30 comprises the flexible auxiliary battery and the charge / discharge management electronics 34 and the diode 26. This additional circuit is intimately fixed to the flexible NFC device.
Dans la description, les mêmes références désignent des composants identiques ou similaires. Selon une caractéristique d'un mode de réalisation, le dispositif comprend un contrôleur 2 (NFC) , une connexion directe entre des moyens alternatifs d'alimentation et le composant (SIM), un circuit de détection du champ (27), un circuit de charge en mode normal, un circuit de blocage de décharge en l'absence de champ électromagnétique (34) . In the description, the same references designate identical or similar components. According to one characteristic of an embodiment, the device comprises a controller 2 (NFC), a direct connection between alternative power supply means and the component (SIM), a field detection circuit (27), a circuit for charge in normal mode, a discharge blocking circuit in the absence of electromagnetic field (34).
Ce mode ci-dessus, est illustré par un exemple de la figure 5 ; Le circuit additionnel 20 comprend en outre un détecteur de champ électromagnétique 27 relié au gestionnaire d'alimentation de la carte SIM. This mode above is illustrated by an example of Figure 5; The additional circuit 20 further comprises an electromagnetic field detector 27 connected to the power manager of the SIM card.
Le gestionnaire 34 a pour fonction de détecter la présence d'un champ radiofréquence et de permettre la décharge de la batterie b3 uniquement au cours d'une communication RF . A cet effet, le gestionnaire 34 peut comprendre au moins les fonctions du circuit 24 (fig.4), un programme chargé dans une mémoire programme d'un contrôleur du gestionnaire. La fonction ci-dessus peut être réalisée sous forme câblée. Le gestionnaire peut être un composant du type MAX11710. The function of the manager 34 is to detect the presence of a radio frequency field and to allow the discharge of the battery b3 only during an RF communication. For this purpose, the manager 34 may comprise at least the functions of the circuit 24 (FIG. 4), a program loaded into a program memory of a controller of the manager. The function above can be done in hardwired form. The manager can be a component of type MAX11710.
Selon cette fonction, la décharge de la batterie est bloquée quand il n'y a pas de champ radiofréquence . Le circuit 34 peut comprendre notamment une porte logique ou par un interrupteur électromagnétique ou un relais qui isole la batterie b3 de la SIM. Cela permet de ne pas décharger la batterie ou capacité (s) C3 inutilement par un courant de fuite éventuel . Lorsqu'un champ suffisant de communication est détecté, la décharge de la batterie et/ou capacité (s) est autorisée pour alimenter la SIM. According to this function, the discharge of the battery is blocked when there is no radio frequency field. The circuit 34 may comprise in particular a logic gate or an electromagnetic switch or a relay that isolates the battery b3 from the SIM. This makes it possible not to discharge the battery or capacity (s) C3 unnecessarily by a possible leakage current. When a sufficient field of communication is detected, the discharge of the battery and / or capacity (s) is authorized to supply the SIM.
Ce gestionnaire peut comprendre des moyens configurés pour permettre une charge de la batterie b3 et/ou capacité (s) C3 notamment quand l'appareil est sous tension et/ou empêcher sa décharge en absence de communication radiofréquence RF. This manager may include means configured to allow charging of the battery b3 and / or capacity (s) C3 especially when the device is energized and / or prevent its discharge in the absence of RF radio communication.
Les moyens alternatifs d'alimentation b3, c3 peuvent intervenir en support ou en substitution d'alimentation du composant (SIM) en cas de détection d'une insuffisance de courant / tension à leur borne. Il peut également intervenir en cas de détection d'un mode de fonctionnement dans lequel l'alimentation en courant est pourvue par le champ électromagnétique RF tel le mode émulation carte EC . The alternative power supply means b3, c3 can intervene in support or substitution of the power supply of the component (SIM) in the event of detection of insufficient current / voltage at their terminal. It can also intervene in case of detection of an operating mode in which the power supply is provided by the RF electromagnetic field such as the EC card emulation mode.
La figure 6 illustre un appareil de communication 50 comprenant un circuit 2 (NFC ou CLF) en relation de communication et d'alimentation électrique avec une carte SIM ou UICC (acronyme anglais d'universal integrated circuit card) conforme au standard ISO/IEC 14443. FIG. 6 illustrates a communication device 50 comprising a circuit 2 (NFC or CLF) in communication and power supply relationship with a SIM card or UICC (universal integrated circuit card) compliant with the ISO / IEC 14443 standard. .
Le composant UICC ou la puce électronique correspondante peut être amovible ou soudée dans l'appareil. La communication entre la SIM et le contrôleur CLF s'effectue par liaison de type SWP . Le contrôleur CLF peut être prévu d'usine dans cet appareil. The UICC component or the corresponding electronic chip can be removable or welded into the device. Communication between the SIM and the CLF is done by SWP link. The CLF controller can be factory-installed in this unit.
L'appareil peut comprendre, en montage d'usine ou de manière amovible, au point de jonction (I) à la SIM, le circuit additionnel 40 de l'invention, conforme aux circuits 20 ou 30 des figures 4 ou 5. Ce circuit est relié à la SIM par le point (I) correspondant au point « Vcc » du connecteur du mobile. The apparatus may comprise, in factory assembly or in a removable manner, at the junction point (I) at the SIM, the additional circuit 40 of the invention, in accordance with the circuits 20 or 30 of FIG. 4 or 5. This circuit is connected to the SIM by the point (I) corresponding to the point "Vcc" of the connector of the mobile.
La figure 7 illustre des étapes préférée du procédé de communication radiofréquence mises en œuvre par les différents modes de réalisation précédents. FIG. 7 illustrates the preferred steps of the radiofrequency communication method implemented by the various previous embodiments.
Ce procédé requiert au moins un composant électronique et des moyens de sélection d'une alimentation en courant de ce composant provenant d'un champ électromagnétique d'un lecteur externe. This method requires at least one electronic component and means for selecting a power supply of this component from an electromagnetic field of an external reader.
Selon un premier mode préféré de mise en œuvre, le procédé de l'invention comprend une étape d'alimentation alternative et directe du composant indépendamment d'une batterie principale. Cette alimentation est mise en œuvre uniquement pour pallier une éventuelle insuffisance de courant ou tension d'alimentation du composant provenant du champ électromagnétique. According to a first preferred mode of implementation, the method of the invention comprises a step of alternating and direct supply of the component independently of a main battery. This power supply is implemented only to compensate for any lack of current or supply voltage of the component coming from the electromagnetic field.
L'étape 50 illustre cette alimentation par une mise en service de la batterie complémentaire b3 ou d'au moins une capacité C3 dans les circuits 20, 30 ou 40. Step 50 illustrates this supply by commissioning the complementary battery b3 or at least one capacitor C3 in the circuits 20, 30 or 40.
Cette mise en service peut être déclenchée de plusieurs manières individuelles ou cumulatives les unes avec les autres selon différentes variantes décrites ci-après. Ainsi, la mise en service peut être déclenchée par une étape 60 d'action directe, effectuée par exemple manuellement, sur un interrupteur (non représenté) installé sur une connexion 23 (fig. 4) reliant b3 ou c3 directement au composant notamment au point (I) . Cet interrupteur peut être logé dans ou constitué également fonctionnellement par le composant 34. This commissioning can be triggered in several individual or cumulative ways with each other according to different variants described below. Thus, the commissioning can be triggered by a step 60 of direct action, performed for example manually, on a switch (not shown) installed on a connection 23 (FIG 4) connecting b3 or c3 directly to the component including the point (I). This switch can be housed in or also functionally constituted by the component 34.
A l'étape 100, le procédé comprend une étape de détection d'un besoin de courant qui intervient quand une tension aux bornes de la SIM est inférieure à 1,8V ou 1,9 V ; Dans le cas positif, la mise en service de la batterie b3 ou capacité C3 intervient. Dans le cas négatif, le programme se reboucle sur 200, 300 ou se met dans un état d'attente ou stationnaire ( 0 ) . La détection 100 peut être simplement physique du fait d'un état de différence de potentiels au point (I) entre les connexions 13 et 23. A l'étape 200, un champ radiofréquence est détecté, notamment par un détecteur 27 comprenant une bobine et étant relié au gestionnaire 34 ; Ce détecteur est configuré pour transmettre, par exemple sous forme logique, un état haut ou bas au gestionnaire 34 selon une présence ou non d'un champ radiof réquence ayant des caractéristiques attendues; cette détection est mise en œuvre par le circuit 27 de la figure 5. In step 100, the method comprises a step of detecting a current requirement that occurs when a voltage across the SIM is less than 1.8V or 1.9V; In the positive case, the commissioning of the battery B3 or capacitor C3 intervenes. In the negative case, the program loops back to 200, 300 or goes into a standby or stationary state (0). The detection 100 can be simply physical because of a potential difference state at the point (I) between the connections 13 and 23. In step 200, a radio frequency field is detected, in particular by a detector 27 comprising a coil and being connected to the manager 34; This detector is configured to transmit, for example in logical form, a high or low state to the manager 34 according to a presence or not of a radiofrequency field having expected characteristics; this detection is implemented by the circuit 27 of FIG.
En cas de présence de champ, le programme peut se reboucler directement sur l'opération 50 (chemin f) ou sur l'étape 300 (chemin a) ou alternativement selon un autre mode de fonctionnement, sur le test 100 décrit précédemment In the event of presence of a field, the program can loop back directly on the operation 50 (path f) or on the step 300 (path a) or alternatively according to another mode of operation, on the test 100 previously described
Dans le cas contraire, absence de champ (non) , le programme peut se reboucler sur un test (300) ou se mettre en attente (0) . In the opposite case, no field (no), the program can loop on a test (300) or standby (0).
A l'étape 300, le procédé comprend une étape de détection d'un mode de fonctionnement en émulation carte sans contact (EC) . Ce mode peut être déclenché de différentes manières notamment par défaut, par action volontaire, par protocole de communication dans le cas notamment d'échanges entre téléphones portables en communication dite « Peer to Peer ») , dans le cas où la batterie est absente, déchargée ou désactivée lors d'une mise hors tension de l'appareil 5. In step 300, the method comprises a step of detecting an operating mode in non-contact card (EC) emulation. This mode can be triggered in various ways, including by default, by voluntary action, by communication protocol in the case in particular of exchanges between mobile phones in communication called "Peer to Peer"), in the case where the battery is absent, discharged or deactivated when the power is turned off 5.
Dans le cas positif (Oui) , le programme peut se brancher directement sur l'opération 50 de mise en service d'une alimentation alternative b3, C3 (chemin b) ; Il peut alternativement se brancher sur au moins un test supplémentaire 100 (détection de tension < 1,8V) (chemin d) et/ou sur le test 200 (détection de champ RF) ; In the positive case (Yes), the program can be connected directly to the operation 50 of putting into operation an alternative power supply b3, C3 (path b); It can alternatively connect to at least one test additional 100 (voltage detection <1.8V) (path d) and / or on test 200 (RF field detection);
Dans le cas contraire (absence de champ) , le programme ou procédé reboucle au début ou à un état d'attente (0) ou à l'un des autres tests (100, 200, 300) . In the opposite case (no field), the program or method loops back to the beginning or to a waiting state (0) or to one of the other tests (100, 200, 300).
Selon une autre mise en œuvre plus générale du procédé, le procédé de communication radiofréquence avec un dispositif possède un mode d'émulation carte sans-contact (EC) ou configuration équivalente. According to another more general implementation of the method, the radiofrequency communication method with a device has a non-contact card (EC) emulation mode or equivalent configuration.
Le procédé met en œuvre une étape de communication dans un mode d'émulation (EC) carte sans-contact ou configuration équivalente, ledit mode présentant une configuration d'alimentation du composant (SIM) par une source d'origine électromagnétique en substitution d'une première source (Bl) comprenant une batterie ; The method implements a communication step in an emulation mode (EC) contactless card or equivalent configuration, said mode having a component supply configuration (SIM) by a source of electromagnetic origin in substitution of a first source (B1) comprising a battery;
Le procédé se distingue en ce qu'il comprend :  The process is distinguished in that it comprises:
- une étape selon laquelle le composant est pourvu d'une source l'alimentation alternative, telle une batterie ou au moins une capacité, a step according to which the component is provided with an alternating power source, such as a battery or at least one capacitor,
une étape de maintien d'un niveau d'alimentation en courant du composant par ladite source alternative, directement auprès de lui, dans le cas d'un besoin de courant d'alimentation au cours d'une communication radiofréquence .  a step of maintaining a current supply level of the component by said alternative source, directly to him, in the case of a power supply requirement during a radio frequency communication.
Le dispositif est de préférence un téléphone mobile alimentant un circuit NFC par batterie Bl et le composant est de préférence un module d'identification d'abonné, telle une carte SIM et/ou un circuit NFC. Le composant NFC peut être logé dans la carte SIM ou une autre carte telle une carte SD ou micro SD. La carte micro SD peut donc comprendre aussi une batterie b3 et/ou des capacités c3 conformes à l'invention avec les circuits de gestion 20, 30 ou 40. The device is preferably a mobile phone supplying a battery NFC circuit B1 and the component is preferably a subscriber identification module, such as a SIM card and / or an NFC circuit. The NFC component can be housed in the SIM card or another card such as an SD or micro SD card. The micro SD card can therefore also include a battery b3 and / or capacities c3 according to the invention with the management circuits 20, 30 or 40.
A la figure 8, est illustré un mode de réalisation de l'invention sous forme d'au moins un composant électroniqueFIG. 8 illustrates an embodiment of the invention in the form of at least one electronic component
Fil. Le circuit 40 est miniaturisé et se trouve agencé de manière compacte sur un composant électronique à alimenter (SIM), par exemple selon le mode EC . Le composant (SIM) est ici sous forme CMS (composant monté en surface) de forme parallélépipédique ; Il comprend les connexions ou pattes électriques Cl à C5 correspondant aux plages de contact d'une carte à puce. Le circuit 40 est compacté aux dimensions de la surface du composant CMS également sous forme de composant CMS avec au moins 2 pattes de connexion 43, 44 correspondants respectivement à la connexion 23 et à la masse. Ces deux pattes sont ici reliées notamment par soudure aux pattes C5 et Cl de la SIM. LAN. The circuit 40 is miniaturized and is arranged in a compact manner on an electronic component to be powered (SIM), for example according to the EC mode. The component (SIM) is here in CMS form (surface-mounted component) of parallelepiped shape; It comprises the connections or electrical lugs C1 to C5 corresponding to the contact areas of a smart card. The circuit 40 is compacted to the dimensions of the surface of the CMS component also in CMS component form with at least 2 connection tabs 43, 44 respectively corresponding to the connection 23 and ground. These two tabs are here connected in particular by welding to the legs C5 and Cl of the SIM.
Alternativement, le composant (SIM) peut être remplacé par le composant (NFC) , l'élément 40 comprend alors l'un des circuits 20 ou 30 comportant notamment la batterie annexe b3 ou capacité C3, le gestionnaire d'alimentation 24 ou 34.Alternatively, the component (SIM) can be replaced by the component (NFC), the element 40 then comprises one of the circuits 20 or 30 comprising in particular the auxiliary battery b3 or capacitor C3, the power manager 24 or 34.
Les pattes Cl - C5 sont adaptées en conséquence aux connexions nécessaires du composant 2 (NFC) . Dans ce cas la patte 43 correspond à la connexion 23 du gestionnaire 24, 34 (fig. 4 ou 5) . The legs C1 - C5 are adapted accordingly to the necessary connections of the component 2 (NFC). In this case, the tab 43 corresponds to the connection 23 of the manager 24, 34 (FIG 4 or 5).
Ainsi, l'invention propose un composant Fil notamment NFC doté d'une source autonome d'énergie intégrée ou juxtaposée pour délivrer de l'énergie immédiatement à un composant à alimenter, tel une carte SIM sans attendre une transformation d'une énergie d'origine électromagnétique qui peut comporter une défaillance ou insuffisance. Thus, the invention proposes a particular NFC wire component with an integrated energy source integrated or juxtaposed to deliver energy immediately to a component to power, such as a SIM card without waiting for a transformation of electromagnetic energy which may include failure or insufficiency.
L'invention permet de délivrer une tension plus calibrée / stabilisée en cas de transformation et fourniture d'énergie par champ radiofréquence . The invention makes it possible to deliver a more calibrated / stabilized voltage in the case of transformation and supply of energy by radiofrequency field.
Selon d'autres fonctionnalités, l'invention prévoit un ou plusieurs modes d'assistance à la batterie principale du système NFC ; Ces modes peuvent être concréti sé ( s ) par un programme d'assistance (AS) dans le contrôleur NFC et un port I/O relié au gestionnaire d'alimentation 24 du ou des composants ; Ces modes peuvent être configurées pour fournir une information de champ radiofréquence présent et énergie de batterie principale absente. Un signal sur ce port est exploité par le moyen gestionnaire d'alimentation alternative 24, 34 pour la mise en service de la batterie ou capacité alternative pour alimenter le composant ou tout autre composant ou circuit. According to other features, the invention provides one or more modes of assistance to the main battery of the NFC system; These modes can be concretized by an assistance program (AS) in the NFC controller and an I / O port connected to the power manager 24 of the component or components; These modes can be configured to provide present radio frequency field information and main battery power absent. A signal on this port is used by the alternative power management means 24, 34 for commissioning the battery or AC capacity to power the component or any other component or circuit.
Selon une variante de réalisation, l'invention prévoit que le contrôleur NFC délivre lui-même l'information de présence de champ détecté par sa propre antenne Al (dans ce cas, le moyen 27 de la figure 5 est inutile, sa fonction étant réalisée par le contrôleur NFC) ; Le contrôleur NFC peut délivrer une information de batterie déchargée ou absente ou hors service. Dans ce cas, on prévoit une configuration dans laquelle au moins un port I/O soit maintenu opérationnel contrairement à la configuration actuelle des contrôleurs. L'invention prévoit une adaptation dans ce sens du micro logiciel actuel de fonctionnement du contrôleur NFC car dans l'art antérieur, les ports I/O du contrôleur NFC sont inactifs dans le cas d' absence de batterie principale ou mode de non alimentation du contrôleur NFC par la batterie principale. Le gestionnaire 24 ou 34 peut être intégré dans le contrôleur NFC de manière à délivrer de l'énergie alternative au composant (SIM) . L'information délivrée sur son port I/O ci- dessus peut alors être directement dirigée en interne vers le gestionnaire 24, 34 tel qu'intégré. According to an alternative embodiment, the invention provides that the NFC controller itself delivers the detected field presence information by its own antenna Al (in this case, the means 27 of FIG. 5 is useless, its function being performed by the NFC controller); The NFC controller may deliver battery information discharged or absent or out of service. In this case, provision is made for a configuration in which at least one I / O port is kept operational contrary to the current configuration of the controllers. The invention provides an adaptation in this sense of the current operating software of the NFC controller because in the prior art, the I / O ports of the NFC controller are inactive in the case of absence of main battery or non-power mode of the NFC controller. NFC controller by the main battery. The manager 24 or 34 can be integrated in the NFC controller so as to deliver alternative energy to the component (SIM). The information delivered on its I / O port above can then be directly directed internally to the manager 24, 34 as integrated.
L'invention prévoit un contrôleur NFC doté d'un dispositif de détection de champ (comme 27), ce qui impose de fonctionner en 3V pour la SIM en mode batterie activée. (Dans ce cas, il n'y a pas de courant tiré de la source alternative quand le champ radiofréquence est présent et le téléphone est allumé) . The invention provides an NFC controller with a field detection device (such as 27), which makes it necessary to operate in 3V for the SIM in activated battery mode. (In this case, there is no current drawn from the alternative source when the radio frequency field is present and the phone is turned on).
Ainsi, le contrôleur NFC peut être configuré pour délivrer ou exploiter une information de présence de champ et/ou information relative à un niveau d'' énergie de batterie principale absent ou présent de manière à mettre ou pas en service la source alternative pour alimenter le composant. Thus, the NFC controller may be configured to deliver or exploit field presence information and / or information relating to a level of main battery energy absent or present so as to turn on or off the AC source to power the component.

Claims

REVENDICATIONS
1. Dispositif de communication radiof réquence (El) comportant : Radiofrequency communication device (El) comprising:
- des moyens de connexion (3, 13, I) connectant ou destinés à connecter électriquement un composant à circuit intégré (SIM) , connection means (3, 13, I) connecting or intended to electrically connect an integrated circuit component (SIM),
- des moyens d'alimentation (2, Al) de ce composant (SIM) en courant d'origine électromagnétique (RF) ,  - Supply means (2, Al) of this component (SIM) electromagnetic current (RF),
caractérisé en ce qu' il comprend une source alternative d'alimentation (b3, c3) pour alimenter ledit composant (SIM) lors d'une réception d'un champ électromagnétique dès que le courant d'alimentation d'origine électromagnétique reçu par le composant est insuffisant.  characterized in that it comprises an alternative supply source (b3, c3) for supplying said component (SIM) upon reception of an electromagnetic field as soon as the feedstream of electromagnetic origin received by the component is insufficient.
2. Dispositif de communication radiofréquence selon la revendication précédente, caractérisé en ce qu' il comprend : 2. Radiofrequency communication device according to the preceding claim, characterized in that it comprises:
- un mode (EC) de communication en émulation carte sans- contact ou configuration équivalente, ledit mode présentant une configuration d'alimentation du composant (SIM) par une source d' origine électromagnétique (RF) en substitution d'une première source (Bl) comprenant une batterie principale, - A communication mode (EC) in contactless card emulation or equivalent configuration, said mode having a component supply configuration (SIM) by a source of electromagnetic origin (RF) in substitution of a first source (B1). ) comprising a main battery,
des moyens de maintien d'un niveau d'alimentation en courant du composant par ladite source alternative, directement auprès de lui, dans le cas d'un besoin de courant d'alimentation au cours d'une communication radiofréquence dans ce mode d'émulation (EC) .  means for maintaining a current supply level of the component by said alternative source, directly with it, in the case of a power supply requirement during a radio frequency communication in this emulation mode (EC).
3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite source alternative comprend une batterie secondaire (b3) et/ou au moins une capacité (c3) . 3. Device according to any one of the preceding claims, characterized in that said alternative source comprises a secondary battery (b3) and / or at least one capacitor (c3).
4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la source alternative (b3, c3) intervient en cas de détection d'un mode de fonctionnement dans lequel l'alimentation en courant est d'origine électromagnétique. 4. Device according to any one of the preceding claims, characterized in that the alternative source (b3, c3) occurs in case of detection of an operating mode in which the power supply is of electromagnetic origin.
5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit composant (SIM) comprend un module d'identification d'abonné à un réseau de télécommunication ou une puce de circuit intégré ou une carte du type UICC. 5. Device according to any one of the preceding claims, characterized in that said component (SIM) comprises a subscriber identification module to a telecommunications network or an integrated circuit chip or a UICC-type card.
6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif comprend un contrôleur NFC (2) et une connexion reliant ou destinée à relier le contrôleur NFC au composant (SIM) pour lui fournir une alimentation d'origine électromagnétique, 6. Device according to any one of the preceding claims, characterized in that the device comprises an NFC controller (2) and a connection connecting or intended to connect the NFC controller to the component (SIM) to provide a supply of electromagnetic origin ,
- une connexion directe (23) de la source alternative (b3, c3) au composant (SIM) ou via un moyen gestionnaire de l'alimentation alternative (24) et/ou moyen de conditionnement (26) de ladite source alternative.  a direct connection (23) of the alternative source (b3, c3) to the component (SIM) or via a management means of the alternative power supply (24) and / or conditioning means (26) of the said alternative source.
7. Dispositif selon l'une quelconque des revendications 2 à 5, caractérisé en ce que le dispositif comprend 7. Device according to any one of claims 2 to 5, characterized in that the device comprises
- un moyen gestionnaire d'alimentation alternative (24, 34) pour gérer une alimentation directe alternative du composant (SIM) ,  an alternative power management means (24, 34) for managing an alternative direct supply of the component (SIM),
- un circuit de charge de la source alternative connecté à la batterie principale  - a charging circuit of the AC source connected to the main battery
un circuit de détection de champ électromagnétique intervenant avec ledit moyen gestionnaire (24 , 34) pour inhiber une décharge de la source alternative vers le composant (SIM) en l'absence de détection de champ électromagnétique et pour autoriser la décharge dans le cas contraire . an electromagnetic field detection circuit intervening with said manager means (24,34) to inhibit a discharge of the AC source to the component (SIM) in the absence of field detection electromagnetic and to allow discharge in the opposite case.
8. Dispositif selon la revendication 3, caractérisé en ce que la batterie est du type flexible ou souple. 8. Device according to claim 3, characterized in that the battery is flexible or flexible type.
9. Dispositif selon la revendication 3, caractérisé en ce que la batterie (b3) ou au moins la capacité (c3) est fixée sur une portion d'un dispositif NFC flexible (Fl) comprenant l'antenne (Al) . 9. Device according to claim 3, characterized in that the battery (b3) or at least the capacitance (c3) is fixed on a portion of a flexible NFC device (Fl) comprising the antenna (Al).
10. Dispositif selon l'une quelconque des revendications 2 à10. Device according to any one of claims 2 to
9, caractérisé en ce qu'il comporte un contrôleur NFC, des plots de connexion pour connecter d'une part une batterie principale d'alimentation d'un dispositif hôte et d'autre part un module d'identification d'abonné (SIM) . 9, characterized in that it comprises an NFC controller, connection pads for connecting on the one hand a main supply battery of a host device and on the other hand a subscriber identification module (SIM) .
11. Dispositif selon l'une quelconque des revendications 3 à11. Device according to any one of claims 3 to
10, caractérisé en ce que la batterie et/ou au moins la capacité et/ou ledit moyen gestionnaire d'alimentation alternative (24, 34) sont fixés ou intégrés à un composant électronique Fil comportant un contrôleur NFC et/ou un module d'identification d'abonné (SIM) . 10, characterized in that the battery and / or at least the capacitance and / or said AC power management means (24, 34) are fixed or integrated with an electronic component Wire comprising an NFC controller and / or a module of subscriber identification (SIM).
12. Dispositif de communication radiof réquence selon la revendication précédente, caractérisé en ce que le contrôleur NFC est configuré pour délivrer ou exploiter une information de présence de champ et/ou information relative à un niveau d' énergie de batterie principale absent ou présent de manière à mettre ou pas en service la source alternative pour alimenter le composant. Radiofrequency communication device according to the preceding claim, characterized in that the NFC controller is configured to deliver or exploit field presence information and / or information relating to a main battery energy level that is absent or present in a manner. to put or not use the alternative source to supply the component.
13. Procédé de communication radiofréquence mettant en œuvre au moins un composant à circuit intégré (SIM) et des moyens d'alimentation (2, Al) en courant d'origine électromagnétique pour alimenter ce composant, 13. Radiofrequency communication method implementing at least one integrated circuit component (SIM) and supply means (2, Al) for electromagnetic current for supplying this component,
caractérisé en ce qu'il comprend une étape de fourniture d'une alimentation du composant (SIM) par une source alternative (b3, c3) lors d'une réception d'un champ électromagnétique dès que le courant d'alimentation d'origine électromagnétique reçu par le composant est insuffisant .  characterized in that it comprises a step of supplying a power supply of the component (SIM) by an alternative source (b3, c3) when receiving an electromagnetic field as soon as the supply current of electromagnetic origin received by the component is insufficient.
14. Procédé de communication radiofréquence selon la revendication précédente, la communication s'effectuant dans un mode d' émulation (EC) carte sans-contact ou configuration équivalente, ledit mode présentant une configuration d'alimentation du composant (SIM) par une source d'origine électromagnétique en substitution d'une première source (Bl) comprenant une batterie, caractérisé en ce qu' il comprend : 14. A method of radio frequency communication according to the preceding claim, the communication being performed in an emulation mode (EC) contactless card or equivalent configuration, said mode having a component supply configuration (SIM) by a source of electromagnetic origin in substitution for a first source (B1) comprising a battery, characterized in that it comprises:
- une étape selon laquelle le composant est pourvu d'une source l'alimentation alternative (b3, c3), telle une batterie ou au moins une capacité,  a step according to which the component is provided with an alternative power source (b3, c3), such as a battery or at least one capacitor,
- une étape de maintien d'un niveau d'alimentation en courant du composant par ladite source alternative, directement auprès de lui, dans le cas d'un besoin de courant d'alimentation au cours d'une communication radiofréquence dans ce mode d'émulation (EC) .  a step of maintaining a current supply level of the component by said alternative source, directly with it, in the case of a power supply requirement during a radio frequency communication in this mode of emulation (EC).
EP12720467.5A 2011-05-06 2012-04-27 Radio-frequency communication device comprising an assisted radio-frequency power supply Withdrawn EP2705467A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12720467.5A EP2705467A1 (en) 2011-05-06 2012-04-27 Radio-frequency communication device comprising an assisted radio-frequency power supply

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11305541A EP2521072A1 (en) 2011-05-06 2011-05-06 Radio communication device comprising an assisted radio source feed
PCT/EP2012/057850 WO2012152606A1 (en) 2011-05-06 2012-04-27 Radio-frequency communication device comprising an assisted radio-frequency power supply
EP12720467.5A EP2705467A1 (en) 2011-05-06 2012-04-27 Radio-frequency communication device comprising an assisted radio-frequency power supply

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EP2705467A1 true EP2705467A1 (en) 2014-03-12

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EP11305541A Withdrawn EP2521072A1 (en) 2011-05-06 2011-05-06 Radio communication device comprising an assisted radio source feed
EP12720467.5A Withdrawn EP2705467A1 (en) 2011-05-06 2012-04-27 Radio-frequency communication device comprising an assisted radio-frequency power supply

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EP (2) EP2521072A1 (en)
KR (1) KR101626195B1 (en)
WO (1) WO2012152606A1 (en)

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KR20140017659A (en) 2014-02-11
KR101626195B1 (en) 2016-05-31
US20140155125A1 (en) 2014-06-05
WO2012152606A1 (en) 2012-11-15
US9537984B2 (en) 2017-01-03
EP2521072A1 (en) 2012-11-07

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