EP1629450B1 - Systeme et procede pour entrainer un emetteur a commander un systeme de commande a distance - Google Patents

Systeme et procede pour entrainer un emetteur a commander un systeme de commande a distance Download PDF

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Publication number
EP1629450B1
EP1629450B1 EP20040752829 EP04752829A EP1629450B1 EP 1629450 B1 EP1629450 B1 EP 1629450B1 EP 20040752829 EP20040752829 EP 20040752829 EP 04752829 A EP04752829 A EP 04752829A EP 1629450 B1 EP1629450 B1 EP 1629450B1
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EP
European Patent Office
Prior art keywords
transmitter
remote control
control system
trainable
remote
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.)
Expired - Lifetime
Application number
EP20040752829
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German (de)
English (en)
Other versions
EP1629450A2 (fr
Inventor
Steven L. Geerlings
Loren D. Vredevoodg
David A. Blaker
John D. Spencer
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Gentex Corp
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Gentex Corp
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Publication of EP1629450A2 publication Critical patent/EP1629450A2/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/20—Binding and programming of remote control devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/60—Security, fault tolerance
    • G08C2201/62—Rolling code

Definitions

  • the present invention relates to a radio frequency (RF) transmitter and particularly to training a transmitter that transmits a control signal from a vehicle to a remotely controlled device and controlling a remotely controlled device using a transmitter in a vehicle.
  • RF radio frequency
  • Electronically operated remote control systems such as garage door openers, home security systems, home lighting systems, etc. are becoming increasingly common.
  • Such electronic remote control systems typically employ a battery powered portable RF transmitter for transmitting a modulated and encoded RF signal to a receiver located at the remote control system.
  • a garage door opener system may include a receiver located within a home owner's garage. The garage door receiver is tuned to the frequency of its associated portable RF transmitter and demodulates a predetermined code programmed into both the portable transmitter and receiver for operating the garage door.
  • a trainable transceiver e.g., a remote control transceiver
  • a vehicle 10 including a trainable transceiver used to control a remote control system 14.
  • the transceiver (not shown) is mounted within the vehicle 10, inside, for example, a rearview mirror 16.
  • the transceiver learns and stores the modulation scheme (i.e., code format), transmission codes and the particular RF carrier frequency of an OEM (original equipment manufacturer) remote transmitter 12 for use with the remote control system 14.
  • the transceiver is trained using an original remote RF transmitter 12 for the remote control system.
  • the coded RF (or infrared) energy of the transmitter 12 is transmitted as indicated by arrow A to the transceiver mounted in the rearview mirror 16 of vehicle 10.
  • the transceiver receives the encoded transmitted energy, demodulates it and identifies and stores the control code and carrier frequency of the transmitted energy. Once trained to the control code and frequency of the remote transmitter 12, the transceiver can be used to selectively transmit coded RF energy as indicated by arrow T to the remote control system 14 that is responsive to the signal.
  • the trainable transceiver determines which cryptographic protocol or algorithm is used to generate and transmit the next code to which the receiver will respond.
  • the receiver of the remote control system also needs to be trained to recognize and accept the transmitter as a valid transmitter for the remote control system (e. g., the receiver may be trained to recognize a unique transmitter serial number associated with the transmitter as valid).
  • the receiver and transmitter are typically synchronized to a counter that increments or changes in a predictable way with each button press.
  • the training of the receiver of the remote control system is commonly referred to as the second part of the training process or receiver training.
  • An example of a trainable transceiver configured to learn variable codes as well as methods for synchronizing rolling codes are described in U. S. Patent No. 5,661, 804 .
  • FR 2 792 444 A relates to a trainable IR remote control device that is able to be trained to communicate with a remote device using code stored in memory of the remote control.
  • WO 00/70577 A (D2) relates to a trainable IR remote control device that has, for a number of devices of various manufacturers, instruction codes stored in order to remote control such devices.
  • the trainable IR remote control device can cycle through such codes in order to identify the device that should be remote controlled.
  • US 6 181 255 B1 relates to a trainable transceiver for a vehicle that uses fixed code and rolling code format in order to remote control a remote device.
  • the trainable transceiver can be trained using a fixed code source transmitter.
  • WO 99/42970 A1 relates to a trainable transceiver for a vehicle that uses fixed code and rolling code format in order to remote control a remote device.
  • the trainable transceiver can be trained using a fixed code original transmitter.
  • the invention concerns a method for training a trainable RF transmitter, and a trainable transmitter for a vehicle, according to independent claims 1 and 3.
  • a further embodiment of said method corresponds to the subject-matter of dependent claim 2.
  • FIG. 2 shows a vehicle 20 including a trainable transmitter in accordance with an embodiment.
  • Vehicle 20 is an automobile, although it should be understood that the trainable transmitter of the present invention may be embodied in other vehicles (e.g., a truck, sport utility vehicle (SUV), mini-van, or other vehicle) or other systems.
  • the system as illustrated in Figure 2 also includes a remote control system 24 such as a garage door opener, home security system, home lighting system, gate opener, etc.
  • Remote control system 24 is responsive to a variable code (or rolling code) RF control signal. Accordingly, a cryptographic algorithm or protocol is used to generate a new control code for each transmission of the control signal.
  • the trainable transmitter 35 (shown in Figure 3 ) is mounted within the vehicle 20 inside, for example, a rearview mirror 26 or other suitable location such as an overhead console, a visor, etc. Alternatively, one or more elements of trainable transmitter may be mounted to other vehicle interior elements, such as an instrument panel or visor.
  • Trainable transmitter 35 (shown in Figure 3 ) also includes a programmable control circuit coupled to a transmitter circuit.
  • the transmitter circuit and programmable control circuit are configured to identify, retrieve and/or store the carrier frequency and the cryptographic or rolling code algorithm or protocol for the variable control code used to control the remote control system 24.
  • the transmitter selectively generates coded RF energy in accordance with the cryptographic protocol and transmits the coded RF energy as indicated by arrow B to the remote control system 24.
  • Remote control system 24 includes a receiver 37 (shown in figure 3 ) to receive the transmitted RF energy.
  • the programmable control circuit also controls the transmitter circuit 30 (shown in Figure 3 ) to generate a carrier signal and modulate a binary code onto the carrier signal to generate the control signal for the remote control system 24.
  • the operation of the trainable transmitter and the programmable control circuit are described in further detail below.
  • FIG. 3 is a schematic block diagram of a trainable transmitter in accordance with an embodiment.
  • Trainable transmitter 35 shown in Figure 3 includes a transmitter circuit 30 that is coupled to an antenna 38 and a control circuit 32.
  • trainable transmitter 35 does not require a receiver to be trained to operate a remote control system 33. Accordingly, an original transmitter of the remote control system is also not required to train transmitter 35.
  • a power supply 36 is conventionally coupled to the various components for supplying their necessary operating power in a conventional manner.
  • a user interface 34 is used to receive input from a user regarding a particular remote system to be controlled.
  • Transmitter 35 may be used to control a plurality of systems and devices.
  • user interface 34 may include an operator input device such as a series of push button switches which may each be associated with a separate remote control system, such as different garage doors, electronically operated access gates, house lighting controls or other remote control systems, each of which may have its own unique operating RF frequency, modulation scheme and/or cryptographic algorithm or protocol for a control code.
  • each switch may correspond to a different radio frequency channel for transmitter circuit 30.
  • the series of push button switches may each be associated with a different type of remote control system such as garage door opener, gate controller, house lighting control, each of which may have an associated set of manufacturers, makes, models, etc. Each manufacturer and/or specific make or model of system may have a unique operating frequency or frequencies, encryption data, cryptographic algorithm or protocol, etc.
  • user interface 34 may also include a display (or be coupled to a vehicle mounted electronic display) with a menu identifying, for example, particular remote control systems or types of remote control systems.
  • Trainable transmitter 35 includes a control circuit 32 configured to control the various portions of transmitter 35, to store data in a memory 31, to operate preprogrammed functionality, etc.
  • Control circuit 32 may include various types of control circuitry, digital and/or analog, and may include a microprocessor, microcontroller, application-specific integrated circuit (ASIC), or other circuitry configured to perform various input/output, control, analysis, and other functions as described herein.
  • Control circuit i32 is coupled to user interface 34 which may include an operator input device which includes one or more push button switches, but may alternatively include other user input devices, such as switches, knobs, dials, etc., or even a voice-actuated input control circuit configured to receive voice signals from a vehicle occupant and to provide such signals to control circuit 32 for control of transmitter 35.
  • Transmitter 35 is used to control remote control system 33 that uses a rolling control code. Once transmitter circuit 30 and control circuit 32 are trained to the carrier frequency and cryptographic algorithm associated with the remote control system 33 (e.g., a garage door opener), transmitter circuit 30 may then be used to transmit an RF signal B that has the characteristics necessary to activate remote control system 33 to a receiver 37 located at the remote control system 33.
  • transmitter circuit 30 and control circuit 32 are trained to the carrier frequency and cryptographic algorithm associated with the remote control system 33 (e.g., a garage door opener)
  • transmitter circuit 30 may then be used to transmit an RF signal B that has the characteristics necessary to activate remote control system 33 to a receiver 37 located at the remote control system 33.
  • Control circuit 32 includes data input terminals for receiving signals from the user interface 34 indicating, for example, that a training mode should be initiated, that an operating mode should be initiated, or for receiving information regarding the remote control system 33, etc.
  • the training mode or operating mode may be initiated by, for example, actuating a push button, by a message on a vehicle bus (if the transceiver is mounted in a vehicle), a combination of key presses, selecting a menu item on a display, etc.
  • the training and operating processes are is discussed in further detail below with respect to Figures 4-8 .
  • Control circuit 32 also includes a memory 31 that includes stored variable code characteristics for a plurality of remote control system manufacturers and particular makes or models of remote control systems for each manufacturer.
  • variable code characteristics may include, for example, possible carrier frequencies, modulation schemes, encryption data, cryptographic algorithms or protocols etc. for each system manufacturer and/or for specific makes or models of a system.
  • each system for a particular manufacturer has an entry in memory 31.
  • an index number may be provided for each system that identifies the system and the location of its entry in memory 31.
  • Memory 31 may be a volatile or non-volatile memory, and may include read only memory (ROM), random access memory (RAM), flash memory, or other memory types.
  • Control circuit 32 is also coupled to transmitter circuit 30.
  • Transmitter circuit 30 is configured to communicate with receiver 37 of the remote control system and may be used to transmit signals via antenna 38.
  • trainable transmitter 35 may include a plurality of transmitter circuits 30 and/or antennas 38 in order to transmit multiple signals at multiple frequencies.
  • FIG. 4 illustrates a method for using a transmitter to remotely actuate a device in accordance with an embodiment.
  • an operating mode is initiated to transmit rolling code signals for a particular device type.
  • the remote control system to be controlled is a garage door opener
  • the user may initiate the transmission of rolling codes associated with various garage door opener manufacturers and systems as stored in the memory 31 of the control circuit 32.
  • the operating mode may be configured to transmit rolling code signals for all known rolling code protocols for all known systems stored in memory 31.
  • the rolling code transmission process may be initiated by, for example, actuating a push button, by a message on a vehicle bus (if the transceiver is mounted in a vehicle), a combination of key presses, selecting a menu item on a display, etc.
  • a plurality of RF carrier signals are generated by the control circuit 32.
  • Each RF signal has the variable code characteristics (e.g., control code according to a cryptographic algorithm, carrier frequency, etc.) for a different one of the systems stored in the memory of the control circuit including the particular device to be actuated.
  • the plurality of RF signals are transmitted to the receiver of the remote control system. In one embodiment, the plurality of RF signals are transmitted sequentially.
  • the transmitter 35 (shone in Figure 3 ) will cycle through each known rolling code protocol (e.g, for a particular type of remote control system or for all known systems) stored in memory at each activation.
  • control circuit 32 (shown in Figure 3 ) will increment each rolling code value unique to rolling code protocol.
  • the receiver of the remote control system should be trained to accept the transmitter as a valid transmitter.
  • an RF signal for each system stored in memory may be transmitted simultaneously.
  • a separate transmitter circuit 30 (shown in Figure 3 ) may be required to transmit each RF signal.
  • transmitter 35 (shown in Figure 3 ) may include a plurality of transmitter circuits 30.
  • the data packets of the plurality of signals are transmitted simultaneously using a single transmitter circuit 30.
  • each transmission of a message 502 by transmitter circuit 30 includes a packet of data 504 followed by idle time.
  • a typical transmission packet 504 may be 20 to 30 ms in duration, followed by approximately 75 ms of idle time.
  • Each packet 504 contains a plurality of bits.
  • multiple message By switching between frequencies and/or data packet transmissions, multiple message, for example four messages, can be interleaved while appearing continuous to the remote control system receiver and the user.
  • the actual number of messages that may be interleaved may vary based on the contents of the transmission.
  • multiple messages (506-512) can be sent on different frequencies.
  • a first data string (or message) 506 is sent on a first frequency
  • a second data string 508 is sent on a second frequency
  • a third data string 510 is sent on a third frequency
  • a fourth data string 512 is sent on a fourth frequency.
  • Each data string corresponds to a unique system.
  • Each frequency may be the same or different, depending on the system to which it corresponds.
  • the number of messages (or data packets) that may be sent in this manner may be limited by the duration and format of a transmission by the transmitter.
  • the transmitter cycles through the various rolling code protocols in memory and generates an interleaved message(s). Depending on the number of rolling code protocols or systems stored in memory, more than one interleaved message may be required (i.e., each message will represent a subset of the protocols/systems in memory).
  • the remote control system corresponds to one of the systems for which characteristics are stored in the transmitter, the remote control system should be actuated by the transmission of signals for all possible systems (e.g., simultaneously). Accordingly, the remote control system and its associated variable code characteristics (e.g., rolling code protocol) do not need to be identified by the transmitter.
  • the rolling code value unique to each system is incremented.
  • the receiver 37 (see Figure 3 ) of the remote control system should be trained to accept the transmitter as a valid transmitter.
  • Figure 6 illustrates a method for training a trainable transmitter in accordance with an arrangement related to the present invention.
  • a rolling code training mode is initiated to identify the remote control system and the correct frequency and variable control code for the remote control system.
  • the training mode may be initiated by, for example, actuating a push button, by a message on a vehicle bus (if the transceiver is mounted in a vehicle), a combination of key presses, selecting a menu item on a display, etc.
  • an index counter is set to one.
  • each system in memory may be identified by, for example, an index number. Accordingly, the training process begins with the system and its associated characteristics identified by an index number of one.
  • an RF control signal is generated using the stored characteristics, e.g., rolling code and frequency, for the first system in memory and transmitted to the remote control system.
  • the transmitter waits for user feedback regarding whether the remote system was activated by the transmission at block 608.
  • a user may provide feedback by, for example, actuating a push button, releasing a push button, a combination of button presses, a menu selection, a time period between button presses, etc.
  • the rolling code characteristics used are stored at block 610 and may be associated with a switch or other operator input device of the transmitter.
  • the switch is also associated with the remote control system and may be used to initiate subsequent transmissions to the remote control system.
  • the receiver 37 (see Figure 3 ) of the remote control system should be trained to accept the transmitter as a valid transmitter.
  • the remote control system is not activated (block 608), it is determined whether the last stored system in memory has been reached at block 614. If the last stored system has not been reached, the index counter is incremented at block 612. The system and characteristics identified by the incremented index number in memory are used to generate an RF control signal transmitted to the remote control system (block 606). The process is repeated for each system stored in memory until either the remote system is activated or all possible systems have been tried. If, at block 614, the last stored system has been reached and the remote system has not been activated, the process may start over at block 604.
  • Figure 7 illustrates a method for training a trainable transmitter in accordance with an alternative embodiment.
  • a rolling code training mode is initiated.
  • the training mode may be initiated by, for example, actuating a push button, by a message on a vehicle bus (if the transceiver is mounted in a vehicle), a combination of key presses, selecting a menu item on a display, etc.
  • a plurality of RF signals corresponding to a subset of the systems or devices included in the memory is generated by the control circuit.
  • the subset of signals may be transmitted, for example, sequentially or simultaneously (e.g., via multiple transmitter circuits or an interleaved message).
  • the transmitter may then send a transmission with a set of packets representing the subset of all possible systems at block 706.
  • the transmitter waits for user feedback regarding whether the remote system was activated by the transmission at block 706.
  • a user may provide feedback by, for example, actuating or releasing a push button, a combination of key presses, a menu selection, a time period between button presses, etc.
  • the subset of systems used may be stored and associated with a switch or button for subsequent transmission to the remote control system at block 712.
  • the receiver 37 (see Figure 3 ) of the remote control system should be trained to accept the transmitter as a valid transmitter.
  • the transmission does not activate the remote control system or device, it is determined whether the last subset of systems in memory has been reached at block 714. If the last subset of systems has not been reached, another subset of possible systems from the memory are used to generate a plurality of RF signals at block 710. Each time the rolling code transmission process is initiated, the rolling code value unique to each system in the identified subset of systems is incremented. This process continues until the system is activated or all possible systems have been tried. If, at block 714, the last subset of systems has been reached and the remote system has not been activated, the process may start over at block 704.
  • Figure 8a illustrates a method for training a trainable transmitter in accordance with an arrangement related to the invention.
  • a rolling code training mode is initiated to identify the remote control system and the correct frequency and variable control code for the remote control system.
  • the training mode may be initiated by, for example, actuating a push button, by a message on a vehicle bus (if the transceiver is mounted in a vehicle), a combination of key presses, selecting a menu item on a display, etc.
  • a user provides input to the transmitter and control circuit that identifies the remote control system (e.g., manufacturer, make/model, etc.) to be controlled.
  • the remote control system e.g., manufacturer, make/model, etc.
  • the transmitter user interface may include a display or be coupled to a display in the vehicle that can be used to show a menu of possible remote control systems (i.e., systems that have characteristics stored in the memory of the transmitter). The user may select from the menu the appropriate system that corresponds to the remote control system to be controlled by the transmitter.
  • a menu of the possible systems that have characteristics stored in the memory of the transmitter may be provided in a written document, such as an owner's manual, and the user can select a system by a combination of key or button presses.
  • the control circuit of the transmitter receives the system identification, the system and/or variable code characteristics for the identified system may be associated with a switch or button at block 806 for subsequent transmission to the remote control system.
  • the receiver 37 (see Figure 3 ) of the remote control system should be trained to accept the transmitter as a valid transmitter.
  • Figure 8b illustrates a method for training a trainable transmitter in accordance with an arrangement related to the invention.
  • a rolling code training mode is initiated and a user provides an input to the transmitter and control circuit to identify the remote control system to be controlled in a manner similar to that described above with respect of Figure 8a .
  • the control circuit of the transmitter receives the system identification, the variable code characteristics for the system are retrieved and the rolling code and frequency are used to create a RF control signal that is transmitted to the remote control system at block 812.
  • the transmitter waits for user feedback regarding whether the remote system was activated by the transmission at block 814.
  • a user may provide feedback by, for example, actuating a push button, a combination of button presses, a menu selection, a time period between button presses, etc.
  • the remote control system is activated (block 814)
  • the rolling code characteristics used are stored at block 818 and associated with a switch or other input device of the transmitter.
  • the switch or other input device is also associated with the remote control system and may be used to initiate subsequent transmissions to the remote control system.
  • the transmitter may prompt the user to reenter or reselect the system or to provide additional input regarding the remote control system at block 816.
  • the transmitter may then re-transmit an RF control signal (block 8812) to the remote control system.
  • the receiver 37 see Figure 3
  • the receiver 37 should be trained to accept the transmitter as a valid transmitter.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)

Claims (3)

  1. Un procédé pour entraîner un émetteur RF dans un véhicule pour qu'il transmette des signaux de code variable utilisés pour actionner un dispositif distant présentant un récepteur,
    l'émetteur entraînable présentant une mémoire incluant des caractéristiques de code variable pour une pluralité de différents dispositifs distants,
    le procédé comprenant le fait de :
    - initier une séquence d'entrainement ;
    - générer une pluralité de signaux porteurs RF qui correspond à un sous-ensemble parmi une pluralité de différents dispositifs distants, où chaque signal porteur RF présente la caractéristique de code variable d'un des dispositifs distants parmi le sous-ensemble de la pluralité de différents dispositifs distants ;
    - transmettre la pluralité de signaux porteurs qui correspond au sous-ensemble de la pluralité de différents dispositifs distants au récepteur du dispositif distant ;
    - répéter les étapes consistant à générer et à transmettre pour un sous-ensemble différent de la pluralité de différents dispositifs distants jusqu'à la réception d'une réaction d'un utilisateur indiquant que le dispositif distant a été activé par la pluralité de signaux porteurs RF ;
    - ayant reçu ladite indication que le dispositif distant a été activé, mémoriser un identificateur pour un sous-ensemble de dispositifs associés à la pluralité de signaux RF qui ont activé le dispositif distant, et
    - comprenant en outre le fait d'associer le sous-ensemble identifié de dispositifs avec un dispositif d'entrée utilisateur de l'émetteur entraînable pour une transmission subséquente de signaux porteurs RF pour actionner le dispositif distant.
  2. Un procédé d'après la revendication 1, sachant que la caractéristique de code variable inclut le fabriquant, la marque, le modèle, la fréquence porteuse, l'algorithme cryptographique, et les données de cryptage.
  3. Un émetteur entraînable pour un véhicule, pour transmettre des signaux de code variable utilisés pour actionner des dispositifs distants, l'émetteur entraînable étant capable de mettre en oeuvre un procédé d'après les revendications 1 ou 2.
EP20040752829 2003-05-20 2004-05-20 Systeme et procede pour entrainer un emetteur a commander un systeme de commande a distance Expired - Lifetime EP1629450B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47204903P 2003-05-20 2003-05-20
PCT/US2004/015886 WO2004104966A2 (fr) 2003-05-20 2004-05-20 Systeme et procede pour entrainer un emetteur a commander un systeme de commande a distance

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EP1629450A2 EP1629450A2 (fr) 2006-03-01
EP1629450B1 true EP1629450B1 (fr) 2015-04-29

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DE102012003416B4 (de) * 2012-02-17 2019-06-19 Truma Gerätetechnik GmbH & Co. KG Konfigurierbares Fernbedienungssystem und Verfahren zum Konfigurieren eines Fernbedienungssystems
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WO2004104966A3 (fr) 2005-01-27
EP1629450A2 (fr) 2006-03-01

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