EP1750383B1 - Prise hautes fréquences pour la connexion à des systèmes de câble coaxial - Google Patents

Prise hautes fréquences pour la connexion à des systèmes de câble coaxial Download PDF

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Publication number
EP1750383B1
EP1750383B1 EP06015721A EP06015721A EP1750383B1 EP 1750383 B1 EP1750383 B1 EP 1750383B1 EP 06015721 A EP06015721 A EP 06015721A EP 06015721 A EP06015721 A EP 06015721A EP 1750383 B1 EP1750383 B1 EP 1750383B1
Authority
EP
European Patent Office
Prior art keywords
socket
branch
voltage
receiver
capacitor
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.)
Active
Application number
EP06015721A
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German (de)
English (en)
Other versions
EP1750383A2 (fr
EP1750383A3 (fr
Inventor
Albert Haslböck
Anton Ilsanker
Christian Linke
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.)
Kathrein SE
Original Assignee
Kathrein Werke KG
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Publication date
Application filed by Kathrein Werke KG filed Critical Kathrein Werke KG
Publication of EP1750383A2 publication Critical patent/EP1750383A2/fr
Publication of EP1750383A3 publication Critical patent/EP1750383A3/fr
Application granted granted Critical
Publication of EP1750383B1 publication Critical patent/EP1750383B1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
    • H04H20/63—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast to plural spots in a confined site, e.g. MATV [Master Antenna Television]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/78—CATV [Community Antenna Television] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving

Definitions

  • the invention relates to an HF socket, in particular an HF socket, according to the preamble of claim 1.
  • RF cans or RF outlets are used in cabling systems, especially for receiving TV and / or radio programs.
  • RF sockets is mainly spoken therefore, since usually coaxial connection cable can be connected to such a RF socket by means of connectors. Since the type of connection is also possible using rotary connections, etc., is so far only briefly spoken of RF doses, which in particular just consist of an RF socket.
  • such RF doses are used to receive satellite broadcast programs.
  • the programs radiated by a satellite via vertical and horizontal polarizations can thereby relate to an upper and / or a lower frequency band be implemented by means of a suitable converter circuit in an intermediate frequency, wherein one or more matrix circuits can be connected downstream depending on the number of participants or receivers to be connected.
  • the aforementioned high-frequency power outlet serves as an interface from the RF distribution system to the receiver or to a television or radio.
  • the HF socket In addition to the HF property, the HF socket must also fulfill another function. Because a remote supply of the connected RF components such as Multi-switch or converter (LNB converter etc.). By the level of the remote supply voltage, for example, a polarization selection of multi-switches or an LNB converter can take place. For example, an 18V feed signal is used to receive horizontally polarized waves and switch to a 14V DC signal to receive vertically polarized waves.
  • LNB converter Low-switch
  • the existing head end monitors the DC voltage supplied to it. If the higher switching voltage of, for example, 18 V longer than a certain period of time (ie a certain ⁇ ) are present, then a higher load would be switched from the head station, whereby the relevant RF socket, via which a connected receiver, the higher DC signal of, for example, 18th V, is brought to shutdown. This ensures that at least the other connected receivers can continue to perform a desired switching to receive an individually desired program.
  • RF socket for connection to coaxial cabling systems has become known, which are constructed in the manner of a single-cable system.
  • the RF socket on a circuit arrangement for DC supply to the antenna trunk, comprising directional diodes, whereby, for example, a switching of the polarization plane of a converter of a satellite receiving system is to be made possible.
  • RF can which includes a shutdown or interruption device.
  • This RF socket communicates with a central control via which signals can be transmitted to control the release of television signals. This makes it possible to filter out parts of the frequency spectrum from the received signals and not to provide a user depending on the usage right.
  • Another HF can is also from the DE 100 05 763 A1 known.
  • This antenna socket additionally has an address module, by means of which it can be unambiguously identified in a distribution network. With a switching device subsequent doses can be switched on or off.
  • the European patent application EP1195932 A2 discloses an antenna socket in which the level at the input is detected. If the level is below a threshold value, an interference level is detected and the signal present at the input is not fed into the distribution network. If the level is above the threshold value, the signal present at the input is fed into the distribution network.
  • a satellite receiving system as known, which has a data bus for controlling a plurality of subscribers or receivers, wherein the receivers are provided with a device for generating a collision protection signal. This ensures that only one receiver at a time can communicate with a controller over the intended data bus.
  • Object of the present invention is to provide, starting from the generic state of the art, an improved solution to turn off a respective receiver, the over a long period of time, a certain DC signal, such as a required only during the switching phase high DC signal in the Einclusystem or feeds into a deviating cable system in tree structure.
  • a functionality comparable to the prior art with the aim of switching off an incorrectly set receiver which feeds an excessively high DC voltage signal for too long a period of time is thereby ensured by the provision of a detection device in a respective HF socket or HF socket is that checks out the fed DC voltage.
  • This detection and monitoring device then switches off the connected receiver if the DC voltage supplied remains at the excessively high DC voltage level over a correspondingly predefinable period of time.
  • the time duration ⁇ for switching off a faulty receiver is set so that a certain number of DiSEqC commands can pass through the bus unhindered.
  • the RF socket according to the invention with the appropriately provided shutdown is effective only from a presettable current. For this reason, normal multiswitches with a smaller load are readily operable on the receiving boxes.
  • FIG. 1 is a schematic side view of a satellite antenna 1, usually a parabolic satellite antenna 1 is shown, which usually comprises a receiving or feed system 3 with at least one converter, for example a so-called LNB converter 5.
  • the converter can be constructed in such a way that the programs broadcast with horizontal or vertical polarization can be received. By appropriate switching, for example, the programs broadcast in a higher or in a lower frequency band can be received. It can be a single-feed converter or, for example, also a multi-feed converter in which, for example, the programs broadcast by two satellites can be received.
  • a cabling system 9 which, starting from the single-cable matrix 11, comprises a so-called single-cable solution.
  • a tree structure may be provided in which a single-cable solution passes via branching points into different branches.
  • the cabling system is usually under use built of coaxial cables.
  • three RF doses 13 are connected in series, to which, for example, a respective receiver 15 can be connected.
  • the matrix 11 is arranged away from the receiving or feed system 3 and the LNB candidate 5, of course, on this route between the converter 5 and the matrix 11 for each frequency band range to be received and / or for each of the polarizations to be received (Vertical and horizontal) a transmission cable (usually a coaxial cable) may be provided, from the matrix 11 then a so-called single-cable system (optionally with a branched tree structure) leads to the connected participants 15.
  • a desired program can be set via a receiver 15, depending on the subscriber or the receiver, independently of a neighboring receiver, via which a completely different, individually desired program can be set.
  • Switching to receive programs that are broadcast once via vertical and the other over horizontal polarizations for example, the receiver or subscriber side by switching a DC voltage from 13 V to 18 V prepared.
  • a specific DiSEqC command is simultaneously fed in, which is switched through to the switched-on single-cable matrix. there to convert a desired program to a specific frequency, which can be received by the respective receiver 15.
  • FIG. 1 shown in a flat rate and in FIG. 2 provided in detail reproduced RF doses according to the invention.
  • FIG. 2 shows that in the cabling system, for example, using a single-cable connection 9 'or when using a cabling system in tree structure (ie not star-shaped) in a relevant inventive RF box 13, first, a directional coupler 19 is connected, via which a signal to be received (which For example, a television or radio program to be received can correspond) is decoupled.
  • a signal to be received which For example, a television or radio program to be received can correspond
  • a receiving line 23 is provided, which ultimately leads to the connection points (interfaces) of the RF socket.
  • the capacitor 21 is followed by a diplexer 25, via which a splitting for receiving the terrestrial signals or the satellite signals can be made, ie in other words at an output 27b of the crossover 25, for example, the terrestrial fed Programs and via the output 27a the signals received via the satellite antenna can be received.
  • the single receiving line 23 emanating from the directional coupler is split into two receiving lines 23a and 23b, which lead to an interface 29a or 29b in the HF socket, to which a corresponding receiver 15 can be connected.
  • two interfaces 29a and 29b preferably in the form of connectors, can - as from FIG. 1 can be seen - another interface 29c be provided, about which, for example, the received radio programs can be received.
  • FIG. 2 goes from a branch point 39a in the receiving line (and in the distance between directional coupler 19 and the capacitor 21) from a branch line 31a.
  • a second branch line 31b starts from a branch point 39b, which lies between the capacitor 41 connected downstream of the diplexer 25 and the interface 29a for connecting the receiver.
  • a coupling 33a, 33b is connected, which is also referred to below as a DC output or DC decoupling 33a, 33b.
  • the DC decoupling is in this case effected by the DC voltage decoupling 33a and 33b (preferably in the form of inductances) and the capacitors 35a and 35b in the two branch lines 31a and 31b.
  • a low-pass filter is formed in each case, which allows the DC component to pass through.
  • a connecting line 38 in which a monitoring circuit 137 is interposed, is provided in each case on the connection side of the DC voltage decoupling 33a or 33b opposite the receiving line 23 or 23a.
  • a monitoring device 37 is provided with a bypass or parallel line running between the two branch points 39a and 39b, which comprises a monitoring circuit 137 in its core. In some cases, this is also referred to as a DC voltage monitoring device 37, since the voltage, ie the DC voltage (of the direct current), is monitored by means of this monitoring device 37.
  • branch line 31b is connected to the receiving line 23a in such a way that a further capacitor 41 for DC blocking is likewise connected between the connecting point 39b thus formed and the output 27a of the crossover 25.
  • receiver 15 ' will be made a switch to another program, so this receiver 15' initially an increase of the injected DC signal, for example, from 13 V to 18 V now made.
  • a DiSEqC command is superimposed on the 18 V signal used to switch to the desired program, so that the received signals are converted to a specific frequency that can be received via the relevant receiver.
  • the feeding of the lower DC voltage signal of 13 V and the supply of the DC signal with, for example, 18 V is e.g. via the connection 29a and the bypass or parallel path 38, bypassing the crossover network 25, namely via the DC decoupling 33b, the DC monitoring device 37, the further DC decoupling 33a in the branch line 31a, the directional coupler 19 and the cabling system 9, which leads to the single-cable matrix 11.
  • a feed path is defined, via which, for example, the matrix circuit 11 or the converter is fed by at least one of the connected subscribers with a DC enabling operation of, for example, 13 V or 14 V or the like (ie a lower DC voltage level).
  • the time is now monitored for which the DC signal is applied with higher DC voltage, for example, a 17 V or 18 V signal. If the corresponding receiver 15 is operating properly, this receiver will automatically switch back to the lower DC voltage (eg, 13 V) DC signal that is fed into the cabling system around the matrix, the converter, after the DiSEqC signal has been sent for less than ⁇ etc. to operate.
  • the lower DC voltage eg, 13 V
  • the DC voltage monitoring device 37 interrupts the bridge line 38 between the two DC voltage decoupling lines 31a, 31b by means of an integrated breaker 37 '.
  • the erroneously operating receiver is completely disconnected from the cabling system 9, so that the other connected receivers can easily continue to switch to a desired program.
  • the entire arrangement is such that not only the time duration ⁇ and the threshold voltage can be set, when exceeding a shutdown is made.
  • the DC voltage of a connected receiver is used both to supply the multi-switch (the matrix circuit) and to select horizontally or vertically polarized input signals.
  • switching from a lower voltage of, for example, 13V to 18V is simultaneously used as a switching signal for receiving other transmitters.
  • a single-cable system fed from the connected receiver voltage level of single-cable multi-switch is no longer as switching criterion but merely as a priority feature for the DiSEqC command to send, over which the station selection occurs.
  • Another feature of this single-cable multiswitch is the comparatively higher power consumption, ie the higher load that the receiver must supply.
  • the monitoring device would be generally inactive, if the HF socket according to the invention described is only used in conjunction with normal multi-switches (matrix circuit) with a lower load be operated and in which a higher voltage switching signal, for example, 18 V permanently applied and is used as Umschaltkriterium.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radio Relay Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Multi-Conductor Connections (AREA)

Claims (10)

  1. Prise à haute fréquence (HF) pour le raccordement sur des systèmes de câblages coaxiaux (9), qui sont conçus comme des systèmes monocâble (9') ou des systèmes de câbles (9') à structure arborescente, ou comprennent de tels systèmes, présentant les éléments techniques suivants :
    - la prise HF (13) comprend un dispositif de surveillance intégré (37),
    - le dispositif de surveillance (37) comprend un circuit de surveillance (137) qui est agencé dans une voie d'alimentation, laquelle s'étend dans la prise HF entre une interface (29a) pour le raccordement d'un récepteur (15) et un emplacement de connexion vers le système de câblage (9) ou le système monocâble (9'),
    - le circuit de surveillance (137) comprend un dispositif de coupure ou d'interruption au moyen duquel la voie d'alimentation peut être interrompue,
    caractérisée en ce que la voie d'alimentation est interrompue quand un signal à tenson continue provenant d'un récepteur raccordé (15) et destiné à être injecté dans le système de câblage (9) ou dans le système monocâble (9') est présent sur une période temporelle prédéterminée ou préréglable (τ) avec une tension au-dessus d'une tension seuil.
  2. Prise HF selon la revendication 1, caractérisée en ce que la prise HF comprend un coupleur redresseur (19) au moyen duquel un signal de réception provenant du système monocâble (9') peuvent être découplé vers une ligne de réception (23 ; 23a, 23b), et la ligne de réception (23 ; 23a, 23b) mène à au moins une interface (29a, 29b) pour le raccordement d'un récepteur (15), et en ce qu'au moins un condensateur (21, 41) est branché dans la ligne de réception (23 ; 23a, 23b).
  3. Prise HF selon la revendication 1, caractérisée en ce qu'il est prévu parallèlement audit au moins un condensateur (21, 41) une ligne de by-pass formant une partie de la voie d'alimentation, dans laquelle est branché le circuit de surveillance (137).
  4. Prise HF selon la revendication 3, caractérisée en ce que la ligne de by-pass comprend deux lignes ramifiées (31 a, 31 b), l'une des lignes ramifiées (31a) formant une ramification à un emplacement de ramification (39a) entre ledit au moins un condensateur (21, 41) et le coupleur redresseur (19), et la seconde ligne ramifiée (31 b) formant une ramification à un emplacement de ramification (39b) entre ledit au moins un condensateur (21, 41) et l'interface (29a) pour le raccordement d'un récepteur (15), et en ce que le circuit de surveillance (137) est prévu dans une ligne de jonction (38) qui relie électriquement les deux lignes ramifiées (31a, 31 b).
  5. Prise HF selon la revendication 4, caractérisée en ce qu'un découpleur à tenson continue (33a, 33b) est prévu entre les points de ramification (39a, 39b) et les entrées/sorties respectives du circuit de surveillance (137).
  6. Prise HF selon la revendication 4 ou 5, caractérisée en ce que les lignes ramifiées (31 a, 31 b) sont mises à la masse à leurs extrémités opposées aux points de ramification (39a, 39b), via au moins un condensateur respectif (35a, 35b).
  7. Prise HF selon l'une des revendications 1 à 6, caractérisée en ce qu'il est prévu un filtre de fréquence (25) branché dans la ligne de réception (23), aux deux bornes duquel (27a, 27b) sont appliqués les signaux reçus depuis des satellites ou par voie terrestre.
  8. Prise HF selon la revendication 4, en association avec la revendication 7, caractérisée en ce que ledit condensateur (21) est placé entre le point de ramification (39a) et l'entrée du filtre de fréquence (25), et en ce qu'il est prévu un second condensateur (41), qui est prévu à ladite au moins une sortie (27a) pour la réception des programmes émis via satellite et au point de ramification successif (39b) pour la seconde ligne ramifiée (31 b).
  9. Prise HF selon l'une des revendications 1 à 8, caractérisée en ce que le dispositif de surveillance (37) surveille la durée de commutation du plus élevé parmi deux niveaux ou signaux à tenson continue, de préférence un signal à tension continue de 17 V ou plus.
  10. Prise HF selon l'une des revendications 1 à 9, caractérisée en ce que le dispositif de surveillance (37) et/ou le circuit de surveillance (137) sont réalisés de telle manière que la voie d'alimentation n'est interrompue que lorsque le courant continu dans la voie d'alimentation est situé au-dessus d'une valeur, le cas échéant préréglable.
EP06015721A 2005-08-04 2006-07-27 Prise hautes fréquences pour la connexion à des systèmes de câble coaxial Active EP1750383B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005036810A DE102005036810B4 (de) 2005-08-04 2005-08-04 HF-Dose

Publications (3)

Publication Number Publication Date
EP1750383A2 EP1750383A2 (fr) 2007-02-07
EP1750383A3 EP1750383A3 (fr) 2008-05-07
EP1750383B1 true EP1750383B1 (fr) 2009-04-29

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Application Number Title Priority Date Filing Date
EP06015721A Active EP1750383B1 (fr) 2005-08-04 2006-07-27 Prise hautes fréquences pour la connexion à des systèmes de câble coaxial

Country Status (5)

Country Link
US (1) US7777590B2 (fr)
EP (1) EP1750383B1 (fr)
AT (1) ATE430416T1 (fr)
DE (2) DE102005036810B4 (fr)
ES (1) ES2326128T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2106049A3 (fr) 2008-03-27 2012-10-10 Technisat Digital Gmbh Dispositif de signalisation d'erreurs dans un système de répartition de signal pour signaux satellites
DE102008029417A1 (de) * 2008-06-23 2009-12-24 Jultec Technology Gmbh Konfigurierbare Antennensteckdose für den Einsatz in Satellitenempfangsanlagen mit teilnehmergesteuerten Frequenzumsetzern
DE102009026358A1 (de) 2009-08-10 2011-02-17 Rotek Microelectronic Gmbh & Co. Kg Wandler für Steuerungsdaten und Verfahren zur Steuerung in einem Antennensignalverteilnetz
DE102010048352B3 (de) * 2010-10-13 2012-04-26 Fujitsu Technology Solutions Intellectual Property Gmbh Schnittstellenüberwachungsvorrichtung für einen Schnittstellenanschluss und Verwendung einer Schnittstellenüberwachungsvorrichtung

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US5235619A (en) * 1990-03-20 1993-08-10 Scientific-Atlanta, Inc. Cable television radio frequency subscriber data transmission apparatus and rf return method
DE4135121C2 (de) * 1991-10-24 1994-05-19 Schwaiger Kg Christian Antennensteckdose
DE19749120C2 (de) * 1997-11-06 2002-07-18 Kathrein Werke Kg Satelliten-Empfangsanlage sowie zugehöriges Verfahren zum Betrieb einer Antennen-Empfangsanlage
DE10005763B4 (de) * 2000-02-10 2005-12-22 Kathrein-Werke Kg Antennensignal-Hausverteilnetz für die Übertragung von Fernseh- und/oder Rundfunkprogrammen
DE10047239A1 (de) * 2000-09-23 2002-04-25 Hirschmann Electronics Gmbh Hochfrequenzgerät mit Pegelerfassung zur Störunterdrückung
US6636408B2 (en) * 2001-03-26 2003-10-21 Marconi Communications, Inc. Coaxial transmission line surge protector assembly with an integral fuse link
DE10155481A1 (de) * 2001-11-13 2003-05-28 Fachhochschule Dortmund Einrichtung zur Steuerung und Überwachung der Freigabe von Empfangssignalen an Anschlussstellen innerhalb von kabelgebundenen Hausverteilungsanlagen
JP4484564B2 (ja) * 2003-09-19 2010-06-16 シャープ株式会社 静電気保護回路及びそれを備えた高周波回路装置
US7950038B2 (en) * 2005-04-01 2011-05-24 The Directv Group, Inc. Transponder tuning and mapping
US20060291118A1 (en) * 2005-06-28 2006-12-28 Topower Computer Industrial Co., Ltd. Power transmission line equipped with a protection circuit

Also Published As

Publication number Publication date
EP1750383A2 (fr) 2007-02-07
ATE430416T1 (de) 2009-05-15
US7777590B2 (en) 2010-08-17
US20070184713A1 (en) 2007-08-09
EP1750383A3 (fr) 2008-05-07
DE102005036810A1 (de) 2007-02-15
DE502006003584D1 (de) 2009-06-10
ES2326128T3 (es) 2009-10-01
DE102005036810B4 (de) 2007-09-06

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