WO2006021624A1 - Téléphone portable recyclable - Google Patents
Téléphone portable recyclable Download PDFInfo
- Publication number
- WO2006021624A1 WO2006021624A1 PCT/FR2004/001964 FR2004001964W WO2006021624A1 WO 2006021624 A1 WO2006021624 A1 WO 2006021624A1 FR 2004001964 W FR2004001964 W FR 2004001964W WO 2006021624 A1 WO2006021624 A1 WO 2006021624A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- telephone
- sim card
- mobile phone
- value
- decryption
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/60—Context-dependent security
- H04W12/69—Identity-dependent
- H04W12/71—Hardware identity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/60—Context-dependent security
- H04W12/69—Identity-dependent
- H04W12/72—Subscriber identity
Definitions
- the present invention relates to mobile telephones using a cellular telephone transmission network of the GSM or GPRS type for sending and receiving telephone communications and concerns in particular a recyclable mobile phone after a predetermined number of telephone units has been used.
- the use of cellular telephony requires the purchase of a mobile phone with two options.
- the first option is to subscribe a subscription in which is included the price of the mobile phone, this price being depreciated as and when payment of the monthly payments.
- the second option is to buy the mobile phone and install a prepaid SIM card.
- an investment corresponding to the price of the mobile phone is necessary, even if, in the first option, the price to be paid is spread over the subscription period.
- this investment is important to the extent that Mobile phones have become very sophisticated devices with many functions in addition to the simple telephone function and that do not always meet a need. To reduce this cost, disposable phones have already been proposed.
- the document FR 2.727.270-A describes a wireless portable telephone which can be discarded after a predetermined number of telephone calls thanks to the presence of a memory in which is stored a predetermined number of telephone units and which is decremented as calls are made, the phone being inhibited when the memorized value reaches zero.
- SIM Subscriber Identification Module
- a first object of the invention is to provide a recyclable mobile phone after a predetermined number of telephone units has been used.
- Another object of the invention is to provide a mobile phone that can only be used with the SIM card inserted in the phone prior to its use.
- Yet another object of the invention is to provide a mobile phone whose use is subject to the recognition of a unique number associated with the phone and the SIM card inserted therein.
- the object of the invention is therefore a wireless mobile telephone adapted to send and receive telephone communications over a cellular network of the GSM type comprising a SIM card associated with a SIM card number (IMSI) and an electronic card comprising a RAM memory in which is stored previously a value representing a predetermined number of telephone units, which is decremented with each telephone call from the phone, the latter being blocked when the decremented value reaches zero.
- SIM card associated with a SIM card number (IMSI)
- IMSI SIM card number
- RAM memory in which is stored previously a value representing a predetermined number of telephone units, which is decremented with each telephone call from the phone, the latter being blocked when the decremented value reaches zero.
- An encrypted value resulting from the encryption by an encryption key, a unique number obtained by the combination of the number associated with the SIM card and the IMEI telephone number is stored in the RAM memory during the initialization of the telephone, and the electronic card comprises a decryption means for decrypting the encrypted value each time the phone is started, the use of the latter being possible only if the value resulting from the decryption is equal to the unique number.
- FIG. 1 represents the front face of the mobile phone according to the invention where the keyboard is located
- FIG. 2 is a block diagram of the essential components of the mobile phone
- FIG. 3 is a flowchart of the procedure for securing the mobile phone during its manufacture or its recycling
- FIG. 4 is a flowchart of the verification procedure implemented each time the mobile phone is started.
- FIGS 5A and 5B show schematically the connection of the SIM card to the shell of the phone and the uncoupling that occurs when there is opening of the shell.
- the mobile phone which is the subject of the invention, is simplified to the maximum so as to limit its cost. It was therefore designed only to make or receive phone calls. For this reason, the front face 10 of the phone illustrated in Figure 1 does not have a screen but only the keys for telephone communications. Apart from the keys intended to enter the digits 0 to 9, a key 12 makes it possible to switch on the telephone. When the power has been turned on, a light 14 lights up and flashes (green) when the network is connected. After dialing the called number, the user establishes the call by pressing a key 16. At the end of the call, the user presses a key 18 which cuts the established call.
- the essential components of the mobile phone are illustrated in Figure 2.
- a microprocessor 20 manages the entire device and in particular is connected to a SIM card 22 which allows the connection of the phone to the cellular network, the keyboard 24 illustrated on the FIG. 1, to a RAM memory 26 storing the number of telephone communication units available to the user and a ROM 28, which stores a decryption key whose function is explained below.
- the microprocessor 20 is also connected to a radio interface unit 30 which serves to transmit and receive the voice signals via an antenna 32. It is also connected to an external connector 34 used to input data into the receiver. phone from the outside.
- the mobile phone of the invention is powered by simple commercial batteries, interchangeable 36, and not by a rechargeable battery.
- a control and regulation unit allows control and regulation.
- This unit is connected to a power management unit 40 which provides adequate power to all the elements of the telephone such as the microprocessor 20, the SIM card 22 or the radio interface 30 but also to a microphone 42 and a speaker 44 used by the user for his telephone communications.
- the mobile phone according to the invention is recyclable and not disposable, that is to say that the user takes possession of the phone from the supplier in exchange for a deposit that he recovers when he brings back the phone .
- the phone has a SIM card that does not can only work with this phone and can not be replaced without causing a phone crash.
- FIGS. 3 and 4 an essential characteristic of the invention is implemented and is illustrated in FIGS. 3 and 4.
- the combination 42 of the International Mobile Equipment Identity (IMEI) telephone number and the International Mobile Subscriber Identity (IMSI) number associated with the SIM card is carried out. Note that this combination can be achieved in different ways but a simple way is to concatenate the two numbers. Thus, if the IMEI number has 15 characters and the IMSI number has 12 characters, the combination obtained will be 27 characters.
- IMEI International Mobile Equipment Identity
- IMSI International Mobile Subscriber Identity
- the combination of the two numbers that results in a unique number is encrypted by means of an algorithm or encryption key to result in a unique encrypted number 45 which is stored in the RAM 26.
- the encrypted single number in the RAM memory 26 is decrypted (step 46) by means of the decryption key stored in the ROM memory 28. This decryption makes it possible to obtain the IMSI number (step 48) of the SIM card. The number obtained is compared (step 50) with the IMSI number of the SIM card in the mobile phone.
- step 52 the normal operation (step 52) of the phone can take place while the keypad is locked (step 54) if the comparison is negative.
- the decryption of the encrypted unique number is performed by the microprocessor 20 but could be performed by a separate decryption module. In all cases, this decryption uses a decryption algorithm in ROM memory and is an executable, so impossible to read in case of hacking the phone. This procedure prevents any replacement of the SIM card by a hacker who stolen the phone or by the user himself. In addition, the decryption key can not be replaced by another key in case of piracy since it is stored in ROM.
- the mobile phone according to the invention comprises in memory a predetermined number of telephone communication units that can be used by the user.
- the phone hangs. Since the telephone according to the invention must have a low cost, it must be recycled more quickly.
- an alternative solution is to also block the phone after a period of use, for example two months, even if the predetermined number of communication units has not been fully exhausted. In both cases, when the phone is recycled, the provider remembers in the RAM memory a value representing a predetermined number of communication units by using the external connector 34 (see Figure 2). Note that this value could be entered by radio or by any other means without contact.
- the mobile phone according to the invention can be produced using two plastic half-shells which are fixed, by gluing or any other means, during manufacture.
- the hull made in any way, must not be opened.
- FIGS. 5A and 5B a particular embodiment illustrated in FIGS. 5A and 5B may be used.
- the SIM card 22 is secured to a portion of the shell, for example the upper half-shell 60 by a securing element 62.
- the SIM card 22 is connected to the electronic card 64 by connection pads such as the pad 66. If there is an attempt to open the shell, the connection pads of the SIM card separate from the electronic card as shown in Figure 5B and the phone is no longer operational.
- the mobile phone described in the foregoing description has the advantages of a disposable telephone since it can only be used for a predetermined number of communication units or for a determined period of time. But in order to reduce its cost significantly (this cost could reach 10% of current mobile phones), it is recyclable and therefore allows its use by multiple successive users who have to pay a refundable deposit in addition to the rental price .
- Such a mobile phone can be marketed in countries where the only need of the users is to be able to communicate telephonically, such as developing countries.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2004/001964 WO2006021624A1 (fr) | 2004-07-23 | 2004-07-23 | Téléphone portable recyclable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2004/001964 WO2006021624A1 (fr) | 2004-07-23 | 2004-07-23 | Téléphone portable recyclable |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006021624A1 true WO2006021624A1 (fr) | 2006-03-02 |
Family
ID=34958865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/001964 WO2006021624A1 (fr) | 2004-07-23 | 2004-07-23 | Téléphone portable recyclable |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2006021624A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102867157A (zh) * | 2012-09-11 | 2013-01-09 | 东莞宇龙通信科技有限公司 | 移动终端和数据保护方法 |
CN112533196A (zh) * | 2020-12-21 | 2021-03-19 | 北京元心科技有限公司 | 移动终端设备可信启动方法、装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2727270A1 (fr) * | 1994-11-22 | 1996-05-24 | Vary Didier | Telephone portatif sans fil jetable |
US5954817A (en) * | 1996-12-31 | 1999-09-21 | Motorola, Inc. | Apparatus and method for securing electronic information in a wireless communication device |
US6504932B1 (en) * | 1998-01-26 | 2003-01-07 | Alcatel | Method of transferring information between a subscriber identification module and a radiocommunication mobile terminal, and a corresponding subscriber identification module and mobile terminal |
US20030021413A1 (en) * | 2001-06-29 | 2003-01-30 | Nokia Corporation | Method for protecting electronic device, and electronic device |
-
2004
- 2004-07-23 WO PCT/FR2004/001964 patent/WO2006021624A1/fr not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2727270A1 (fr) * | 1994-11-22 | 1996-05-24 | Vary Didier | Telephone portatif sans fil jetable |
US5954817A (en) * | 1996-12-31 | 1999-09-21 | Motorola, Inc. | Apparatus and method for securing electronic information in a wireless communication device |
US6504932B1 (en) * | 1998-01-26 | 2003-01-07 | Alcatel | Method of transferring information between a subscriber identification module and a radiocommunication mobile terminal, and a corresponding subscriber identification module and mobile terminal |
US20030021413A1 (en) * | 2001-06-29 | 2003-01-30 | Nokia Corporation | Method for protecting electronic device, and electronic device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102867157A (zh) * | 2012-09-11 | 2013-01-09 | 东莞宇龙通信科技有限公司 | 移动终端和数据保护方法 |
CN112533196A (zh) * | 2020-12-21 | 2021-03-19 | 北京元心科技有限公司 | 移动终端设备可信启动方法、装置 |
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