EP0651119B1 - A transmitter for a remote control group - Google Patents

A transmitter for a remote control group Download PDF

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Publication number
EP0651119B1
EP0651119B1 EP94650001A EP94650001A EP0651119B1 EP 0651119 B1 EP0651119 B1 EP 0651119B1 EP 94650001 A EP94650001 A EP 94650001A EP 94650001 A EP94650001 A EP 94650001A EP 0651119 B1 EP0651119 B1 EP 0651119B1
Authority
EP
European Patent Office
Prior art keywords
transmitter
code
signal
controller
radiation
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
EP94650001A
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German (de)
English (en)
French (fr)
Other versions
EP0651119A1 (en
Inventor
Alexander Dr. Palatianos
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.)
PHISILOG RESEARCH Ltd
Original Assignee
PHISILOG RESEARCH Ltd
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Publication date
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Application filed by PHISILOG RESEARCH Ltd filed Critical PHISILOG RESEARCH Ltd
Publication of EP0651119A1 publication Critical patent/EP0651119A1/en
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Classifications

    • 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
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00857—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G07C2009/00261—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier having more than one function
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00857—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed
    • G07C2009/00888—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed programming by learning
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
    • G07C2009/00928—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses for garage doors
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/08—With time considerations, e.g. temporary activation, valid time window or time limitations

Definitions

  • the invention relates to a transmitter for a remote control group, the transmitter being of the type comprising:-
  • remote control group is intended to cover a group wherein there are one or more receivers and a number of transmitters.
  • the invention applies particularly, but not exclusively to gate and barrier opening remote control groups where there may be hundreds of transmitters and several receivers.
  • United States patent specification No. US-A-4988992 (Chamberlain) describes a transmitter having the features set out above.
  • a program switch and a transmit switch are pressed simultaneously to cause random generation of a code which is inputted to a NOR gate.
  • the other input of the NOR gate may receive at the same time a code from another transmitter via a radio reception circuit. If a remote code is being received, the random code generator is disabled and it is the received code which is stored in the non-volatile memory. If no remote code is being received, it is the randomly generated code which is stored.
  • Another problem is that it is necessary to press simultaneously a combination of two input buttons out of a total of three such buttons. This requires a certain degree of knowledge of the program state of the transmitter. Where the remote control group includes hundreds of users, it can be quite time-consuming to educate every user as to how the transmitter operates.
  • US-A-4652860 BMW
  • EP-A1-0533623 Somfy
  • US-A-4652860 there are several input buttons to be selected from by the user for learning of a code and thus, operation of the transmitter is relatively complex. Further, there do not appear to be any features controlling the extent to which transmitters of a remote control group may learn codes. Similar comments apply to EP-A-10533623, in which a galvanic link is used for learning of code.
  • controller further comprises :
  • the invention provides for control of operation of transmitters in a remote control group. This is very important, particularly where the group is large.
  • the instruction is an indicator as to whether or not the accompanying code can be learned, thereby setting the transmitter as having a teach and learn status or a learn only status. Accordingly, the transmitter may be set as a learn only or as a teach and learn transmitter in a very simple manner.
  • the controller is connected to a non-resettable switch which determines the instruction to be embedded in the radiation signal. This provides security in setting of transmitter operations.
  • the radiation signal contains a sequence of binary bits, the instruction being within a pre-set sequence of the bits. This allows for simple and fast operation.
  • the controller is activated to automatically monitor the radiation receiver in response to a transmit instruction from the user interface. This feature allows the transmitter operate to learn a code in a very simple manner without any technical knowledge in addition to that required for opening a barrier using the transmitter, for example.
  • the controller comprises a means for delaying signal transmission for a pre-set period after receipt of a user transmit instruction, and a means for monitoring the radiation receiver during said period.
  • the controller further comprises a means for delaying signal transmission for a second period if a signal is detected during the first period, and a means for attempting to extract a code embedded in a detected signal during the second period.
  • the invention provides a transmitter for a remote control group, the transmitter comprising:-
  • the group 1 comprises a set of transmitters 2, each having a transmission antenna 3.
  • the group 1 also includes a receiver 4 which picks up signals from the transmitters 2 at a receiver antenna 5.
  • the receiver 4 is connected to an output device, not shown, which is typically a door such as a garage door. While only three transmitters 2 are shown there will typically be hundreds of transmitters for a single remote control group. Indeed, there may also be several receivers, each receiver being for control of a shared function such as the opening of a gate or barrier.
  • the receiver 4 stores three valid codes, which are used as references for comparison with codes received from the transmitters 2 for activation of the three shared functions. Each function and its code is referred to as a channel.
  • the transmitter 2 comprises a moulded plastics casing 10 having a removable cover 11 with a resilient catch 12.
  • the transmitter 2 has three channel select buttons 13. Each button 13 is associated with a particular code stored within the transmitter 2, there being three channels in the receiver 4. For example, one function may be opening of a barrier, another closing of a barrier, and another may relate to a different speed for opening or closing. Alternatively, the functions may be for different barriers allowing access to a site.
  • a light emitting diode (LED) 14 is mounted on the outside of the casing 10.
  • the compartment which is covered by the cover 11 includes a randomise button 15 which is pressed if the user wishes to randomly generate a new code for storage in the non-volatile memory.
  • a teach status switch 16 which is in the form of a conductor, the status being the conductor intact as shown in Fig. 2a, or being open-circuited by being cut. This function is described in more detail below.
  • the compartment also includes a battery 17 connected to terminals 18.
  • the transmitter 2 includes a micro-controller 20 which is programmed by programs stored on-chip and in an EEPROM non-volatile memory circuit 21.
  • the transmitter 2 includes a radio transmitter 22 and a radio receiver 23, both of which are connected to the antenna 3.
  • Figs. 2(b) and 4 describe operation of the transmitter 2.
  • the user When the transmitter 2 is being used for activation of a shared function such as opening of a gate, the user simply presses the channel select button 13 which relates to the particular function.
  • the microcontroller 20 detects depression of the relevant button 13 and activates the LED 14 to indicate that the transmitter 2 is operational and at the same time activates the radio transmitter 22 to transmit the channel code retrieved from the memory 21.
  • the code is transmitted using the Frequency Shift Keying Coding System.
  • the codes which are stored in the memory 21 may be generated initially by pressing the randomise button 15 which instructs the microcontroller 20 to randomly generate a new code. However, it should only be necessary to perform this operation once.
  • a much more common way of recording a code in the memory 21 is to learn the code from another transmitter 2 as shown in Fig. 2(b).
  • the words “teaching” and “learning” will be used to indicate which transmitter is being referred to in the description below.
  • the two transmitters are placed next to each other and the relevant channel select button 13 is pressed on both transmitters that of the teaching transmitter being pressed firstly. This is all that is required of the user and the LED 14 of the learning transmitter flashes to indicate that the code has been successfully learned. There is no need to press any other button - just the button which is normally pressed for the particular channel. It will be appreciated that to the user this is a very important feature of the invention.
  • teaching transmitter 2 may only be used for teaching of a code if the controller 20 has been pre-set to allow it to teach code. This provides considerable additional security and allows control over the manner in which the transmitters are configured when being given to users of a remote control group.
  • the teach status switch 16 is pre-set. If the switch 16 is conductive, then the microcontroller 20 "knows" that it can act as a code teaching transmitter. Therefore, every time a transmit button 13 is pressed it transmits the code via the radio antenna 3 but includes in addition to the code, an instruction, namely, an additional bit at bit position 25 to indicate that the code may be learned by another transmitter.
  • the code is 24 binary bits long, and the extra bit 25 indicates whether or not the code may be learned. If, however, the switch 16 were cut to provide an open circuit to the microcontroller 20, then the microcontroller 20 would "know” that it can not teach and the value of bit 25 will be understood by other transmitters as an indication that the code can not be learned.
  • the upper transmitter 2 has an intact teach switch 16 and therefore the 25th bit in the code which is transmitted has binary value 1 which is understood by the lower transmitter 2 to mean that the code can be learned.
  • the switch 16 may be regarded as being non-resettable as it requires special knowledge of the circuit and soldering equipment to change.
  • a teach status indicator may be stored in the memory 21 to indicate to the controller 20 whether or not it can operate as a teaching transmitter.
  • FIG. 4 is a flow chart illustrating how the controller 20 of a learning transmitter 2 operates.
  • the user presses the relevant transmit button 13 on the teaching transmitter 2, and immediately afterwards in step 31 on the learning transmitter 2.
  • step 32 the controller 20 of the learning transmitter 2 spends 12.5 ms listening for a signal at the radio receiver 23. If no signal is detected in this 12.5 ms time period as indicated by decision steps 33, the learning transmitter 2 in step 38 simply transmits the code associated with the transmit button 13 which has been pressed.
  • step 34 the controller 20 of the learning transmitter 2 spends a further 3 seconds listening for and extracting a code within the signal being received as indicated by step 34.
  • the controller continues to listen during the three second time period and if this period expires without a valid code being extracted, the relevant code associated with the transmit button 13 which has been pressed is transmitted in step 38. If, however, a valid code is identified during the 3-second time period, this code is stored in step 36 in the non-volatile memory 21. Subsequently, the code is transmitted in code 38. In step 39 the transmit button is released and the learning operation is complete.
  • the controller listens for a code being received on depression of only a transmit button.
  • it operates to listen for a code every time the transmit button is pressed.
  • Data integrity and reliability are received in particular by delaying transmission of a code while the controller listens to the radio receiver for reception of a radio signal.
  • the delay time for the vast majority of cases is only 12.5 ms because no relevant signal will be detected.
  • a signal will be detected during the first period and the second period will then be used for extraction of the code and storage of it in the memory 21.
  • a transmitter may be initially programmed by pressing the randomise button 15 and this transmitter may then be used for teaching each of the other transmitters of the group, and also the receiver.
  • coding of all devices of the remote control group is extremely simple and quick. Complete versatility is then provided by the ability to set each successive transmitter as being a "learn only” transmitter or alternatively as a “learn and teach” transmitter depending on the instruction transmitted together with he code. This considerably improves the control over operation of the remote control group. Users may very easily teach code to a new transmitter by simply pressing the transmit button only and monitoring the LED 14 for a flash.
  • the transmitter may include separate antennae for the radiation transmitter and receiver.
  • the transmitter may use any other remote communication medium such as infra red or radiation of any suitable frequency.
  • the features of the invention apply equally to all types of radiation, and in the embodiment illustrated radio signals are used as circuits for radio communication are particularly inexpensive and reliable.
  • the delay times for listening at the radiation receiver may be varied considerably from those described. Possibly the minimum listening time for listening for a signal would be about 5 ms, however, the upper limit could extend to 0.5s or even higher. Indeed, it is not essential that the controller delay transmission of a code while it listens to the radiation receiver as different radio wavelengths may be used and both could happen simultaneously. However, it will be appreciated that by delaying the transmission of a signal a relatively simple and inexpensive circuit may be used and there is improved reliability.
  • An important feature of the invention is the manner in which the code which is transmitted includes an extra bit to indicate to the receiving transmitter whether or not the code may be learned.
  • the instruction which is provided every time a signal is transmitted is of major importance in providing control for the remote control group.
  • the instruction which is transmitter together with the code may be of a different type to instruct operation of the receiving transmitter. It may include information, for example, to the effect that a code may be learned only for the particular channel on the receiving 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)
  • Transmitters (AREA)
EP94650001A 1993-11-01 1994-01-07 A transmitter for a remote control group Expired - Lifetime EP0651119B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IE930837 1993-11-01
IE93837 1993-11-01

Publications (2)

Publication Number Publication Date
EP0651119A1 EP0651119A1 (en) 1995-05-03
EP0651119B1 true EP0651119B1 (en) 1996-11-06

Family

ID=11040155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94650001A Expired - Lifetime EP0651119B1 (en) 1993-11-01 1994-01-07 A transmitter for a remote control group

Country Status (6)

Country Link
EP (1) EP0651119B1 (es)
AT (1) ATE145035T1 (es)
BE (1) BE1006045A6 (es)
DE (1) DE69400859T2 (es)
ES (1) ES2095142T3 (es)
GB (1) GB2283599A (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19900728C1 (de) * 1999-01-12 2000-05-18 Adolf Tedsen Gmbh & Co Kg Drahtloser Handsender zum Abspeichern und Senden eines Sendecodes
EP1085481A2 (en) 1999-09-13 2001-03-21 Phisilog Research Limited A remote control transmitter
US7057494B2 (en) 2001-08-09 2006-06-06 Fitzgibbon James J Method and apparatus for a rolling code learning transmitter
AU2003222891B2 (en) * 2002-02-11 2008-03-13 Somfy Sas Method for defining a group from among bi-directional objects
US7639115B2 (en) 2002-02-11 2009-12-29 Somfy Sas Method for matching bidirectional objects
US7724687B2 (en) 2004-04-16 2010-05-25 Somfy Sas Method for transmitting information between bidirectional objects

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Publication number Priority date Publication date Assignee Title
WO1997025502A1 (de) * 1996-01-10 1997-07-17 Dorma Gmbh Co. Kg Verfahren zur übertragung von informationen
DE19616399A1 (de) * 1996-04-24 1997-10-30 Marantec Antrieb Steuerung Fernbedienung
DE19619975C1 (de) * 1996-05-17 1997-09-11 Daimler Benz Ag Verfahren zur Bedienung eines tragbaren Handsenders für eine Fahrzeugfernbedienung
DE19625588A1 (de) * 1996-06-27 1998-01-02 Deltron Elektronische Systeme Verfahren und Vorrichtung zur Funkfernsteuerung mittels codierter elektromagnetischer Impulse
JP2908334B2 (ja) * 1996-08-12 1999-06-21 静岡日本電気株式会社 個別選択呼出受信機
IT1297272B1 (it) * 1997-07-03 1999-08-09 Ferport S A S Di M Biassoni E Sistema di telecomando con programmazione di codice
WO1999023335A1 (en) * 1997-11-05 1999-05-14 Ut Automotive Dearborn, Inc. A system and method for uploading an identification code
DE19757037A1 (de) * 1997-12-20 1999-06-24 Bosch Gmbh Robert Verfahren zum Neuzuordnen eines Betätigungselementes zu einer Fernwirkeinrichtung und Fernwirkeinrichtung
DE19821998C1 (de) * 1998-05-15 1999-10-14 Hoermann Kg Antriebstechnik Signalbetätigbares Schließsystem für Türen oder Tore sowie Verfahren zum Betreiben eines solchen
US7684570B2 (en) 1998-11-17 2010-03-23 Aamp Of America Vehicle remote control interface for controlling multiple electronic devices
US6078159A (en) * 1999-02-17 2000-06-20 The Chamberlain Group, Inc. Method and apparatus for programming a logic board from switching power
FR2809853B1 (fr) * 2000-06-02 2002-07-26 Delta Dore Procede de transmission sans fil a haute frequence pour un dispositif de regulation de chauffage a commande a distance
WO2002047038A1 (en) 2000-12-10 2002-06-13 Vkr Holding A/S Remote control device and method of configuration of such a remote control device
US6735571B2 (en) 2001-06-15 2004-05-11 Salary.Com Compensation data prediction
DE102004003212B4 (de) * 2004-01-22 2007-12-13 Sommer Antriebs- Und Funktechnik Gmbh Programmiergerät für Sender-/Empfängersysteme zur berührungslosen Betätigung von Türen und Toren
DE102005015067B4 (de) * 2005-04-01 2009-07-30 Hörmann KG Antriebstechnik Torantriebssystem sowie Einlernverfahren hierfür
DE102009051982B4 (de) * 2009-11-05 2014-05-22 Hörmann KG Antriebstechnik Funksender zur Fernbedienung eines Torantriebs, damit versehenes Torantriebssystem sowie Vererbungs- und Betriebsverfahren
DE102017100585B4 (de) * 2017-01-13 2021-06-10 Hörmann KG Antriebstechnik Funkfernbedienungssystem für automatische Gebäudeabschlüsse und deren Aktoren, automatisches Gebäudeabschlusssystem und Betriebsverfahren

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Publication number Priority date Publication date Assignee Title
US4529980A (en) * 1982-09-23 1985-07-16 Chamberlain Manufacturing Corporation Transmitter and receiver for controlling the coding in a transmitter and receiver
US4623887A (en) * 1984-05-15 1986-11-18 General Electric Company Reconfigurable remote control
FR2607611B1 (fr) * 1986-11-28 1989-02-03 Neiman Sa Telecommande codee a changement
US5237319A (en) * 1987-05-22 1993-08-17 Pioneer Electronic Corporation Remote control device with learning function
US5148159A (en) * 1989-04-26 1992-09-15 Stanley Electronics Remote control system with teach/learn setting of identification code

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19900728C1 (de) * 1999-01-12 2000-05-18 Adolf Tedsen Gmbh & Co Kg Drahtloser Handsender zum Abspeichern und Senden eines Sendecodes
EP1085481A2 (en) 1999-09-13 2001-03-21 Phisilog Research Limited A remote control transmitter
US7057494B2 (en) 2001-08-09 2006-06-06 Fitzgibbon James J Method and apparatus for a rolling code learning transmitter
US7741951B2 (en) 2001-08-09 2010-06-22 The Chamberlain Group, Inc. Method and apparatus for a rolling code learning transmitter
US8536977B2 (en) 2001-08-09 2013-09-17 The Chamberlain Group, Inc. Method and apparatus for a rolling code learning transmitter
AU2003222891B2 (en) * 2002-02-11 2008-03-13 Somfy Sas Method for defining a group from among bi-directional objects
US7639115B2 (en) 2002-02-11 2009-12-29 Somfy Sas Method for matching bidirectional objects
US7683754B2 (en) 2002-02-11 2010-03-23 Somfy Method for defining a group from among bi-directional objects
US7724687B2 (en) 2004-04-16 2010-05-25 Somfy Sas Method for transmitting information between bidirectional objects

Also Published As

Publication number Publication date
ES2095142T3 (es) 1997-02-01
EP0651119A1 (en) 1995-05-03
DE69400859D1 (de) 1996-12-12
ATE145035T1 (de) 1996-11-15
BE1006045A6 (fr) 1994-04-26
GB2283599A (en) 1995-05-10
GB9400385D0 (en) 1994-03-09
DE69400859T2 (de) 1997-03-27

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