EP0265728A3 - Electronic remote control device for the central locking systems of motor vehicles - Google Patents

Electronic remote control device for the central locking systems of motor vehicles Download PDF

Info

Publication number
EP0265728A3
EP0265728A3 EP87114656A EP87114656A EP0265728A3 EP 0265728 A3 EP0265728 A3 EP 0265728A3 EP 87114656 A EP87114656 A EP 87114656A EP 87114656 A EP87114656 A EP 87114656A EP 0265728 A3 EP0265728 A3 EP 0265728A3
Authority
EP
European Patent Office
Prior art keywords
code word
control device
remote control
electronic remote
code
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP87114656A
Other languages
German (de)
French (fr)
Other versions
EP0265728A2 (en
Inventor
Herbert Keller
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.)
Wilhelm Ruf KG
Original Assignee
Wilhelm Ruf KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wilhelm Ruf KG filed Critical Wilhelm Ruf KG
Publication of EP0265728A2 publication Critical patent/EP0265728A2/en
Publication of EP0265728A3 publication Critical patent/EP0265728A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G07C9/00182—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
    • G07C2009/0023—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 with encription of the transmittted data signal
    • 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
    • G07C2009/00238—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 transmittted data signal containing a code which is changed
    • G07C2009/00253—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 transmittted data signal containing a code which is changed dynamically, e.g. variable code - rolling 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Die elektronische Fernbetätigungseinrichtung arbeitet nach dem bekannten Prinzip der Code-Fortschaltung, bei dem nach jedem Sende-/Empfangsvorgang ein anderes Code- Wort ver­ wendet wird. Bei der Erfindung wird das jeweils neue Code-Wort aus einem gespeicherten Ur-Code-Wort (1, 19) und dem bisherigen Code-Wort (3; 17, 21) durch logische Ver­ knüpfung (2, 20) nach einer vorgegebenen Funktion neu erzeugt. Im Empfänger werden bei Nichtübereinstimmung zwischen empfangenen und empfangsseitig neu ermitteltem Code-Wort vorwärts fortschaltend weitere Code-Worte (CDW x+1 ..., CDW x+n) erzeugt. Wird dabei keine Übereinstimmung festgestellt, so schaltet der Empfänger auf erhöhte Sicher­ heit um, bei der zwei unmittelbar aufeinanderfolgende Code-Worte übereinstimmen müssen. The electronic remote control device works the well-known principle of code advancement, according to which a different code word ver for each send / receive operation is applied. In the invention, this is new Code word from a stored original code word (1, 19) and the previous code word (3; 17, 21) by logical ver knotting (2, 20) according to a given function generated. If there is a mismatch, the recipient will between received and newly determined on the receiving side Code word forwards further code words (CDW x + 1 ..., CDW x + n). There will be no match detected, the receiver switches to increased security um um, in the two immediately consecutive Code words must match.

EP87114656A 1986-10-29 1987-10-07 Electronic remote control device for the central locking systems of motor vehicles Withdrawn EP0265728A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3636822 1986-10-29
DE3636822A DE3636822C2 (en) 1986-10-29 1986-10-29 Electronic remote control device, in particular for central locking systems of motor vehicles

Publications (2)

Publication Number Publication Date
EP0265728A2 EP0265728A2 (en) 1988-05-04
EP0265728A3 true EP0265728A3 (en) 1989-02-01

Family

ID=6312747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114656A Withdrawn EP0265728A3 (en) 1986-10-29 1987-10-07 Electronic remote control device for the central locking systems of motor vehicles

Country Status (3)

Country Link
US (1) US4847614A (en)
EP (1) EP0265728A3 (en)
DE (1) DE3636822C2 (en)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060263A (en) * 1988-03-09 1991-10-22 Enigma Logic, Inc. Computer access control system and method
DE3840857A1 (en) * 1988-12-03 1990-06-07 Hella Kg Hueck & Co Device for the remote control of security devices
DE3905651A1 (en) * 1989-02-24 1990-08-30 Daimler Benz Ag METHOD FOR SECURING CODE WORDS OF A REMOTE CONTROL SYSTEM AND REMOTE CONTROL SYSTEM WITH CODE TRANSFERABLE BY CODE WORDS
JPH0716268B2 (en) * 1989-04-07 1995-02-22 松下電器産業株式会社 Remote control device
DE59004565D1 (en) * 1989-05-18 1994-03-24 Siemens Ag TRANSMITTER RECEIVER SYSTEM.
GB9001804D0 (en) * 1990-01-26 1990-03-28 Automatic Button Co The Ltd Dynamic lock and key
WO1991014065A1 (en) * 1990-03-07 1991-09-19 Siegfried Sikora Lock unit for a motor vehicle with remote-controlled door lock
EP0523117B1 (en) * 1990-04-06 1994-08-24 Siemens Aktiengesellschaft Central locking installation for a motor vehicle
ATE136975T1 (en) * 1990-05-29 1996-05-15 Microchip Tech Inc INTEGRATED CIRCUITS, PARTICULARLY FOR USE IN REMOTE CONTROL SYSTEMS
US6175312B1 (en) 1990-05-29 2001-01-16 Microchip Technology Incorporated Encoder and decoder microchips and remote control devices for secure unidirectional communication
DE4204463C2 (en) * 1991-02-15 1995-06-01 Alps Electric Co Ltd Identification information transceiver
WO1992015761A1 (en) * 1991-03-07 1992-09-17 Siemens Aktiengesellschaft System with optical or radio remote control for closing motor vehicles
US6310537B1 (en) 1991-03-07 2001-10-30 Siemens Aktiegesellschaft System with optical or radio remote control for closing motor vehicles
US6166650A (en) * 1991-05-29 2000-12-26 Microchip Technology, Inc. Secure self learning system
US5686904A (en) * 1991-05-29 1997-11-11 Microchip Technology Incorporated Secure self learning system
WO1993004425A1 (en) * 1991-08-13 1993-03-04 Universal Photonix, Inc. System for remotely validating the identity of indivuals and determining their locations
US5442341A (en) * 1992-04-10 1995-08-15 Trw Inc. Remote control security system
US5760700A (en) * 1992-05-02 1998-06-02 Electronics Research And Design Uk Ltd. Security system with succession of codes
GB2269691A (en) * 1992-05-02 1994-02-16 K & K Audio Tech Ltd Security systems.
US5600324A (en) * 1992-05-11 1997-02-04 Rockwell International Corporation Keyless entry system using a rolling code
US5798711A (en) * 1992-05-22 1998-08-25 Directed Electronics, Inc. High throughput embedded code hopping system with bypass mode
US5872519A (en) * 1992-05-22 1999-02-16 Directed Electronics, Inc. Advanced embedded code hopping system
EP0598107A4 (en) * 1992-06-08 1994-06-29 United Technologies Automotive Power saving remote keyless entry.
DE4221142C2 (en) * 1992-06-27 1998-02-19 Kiekert Ag Central locking system for a motor vehicle
DE4223258C3 (en) * 1992-07-15 2001-03-15 Telefunken Microelectron Method for verifiable transmission of data
US5495235A (en) * 1992-09-30 1996-02-27 At&T Corp. Access control system with lockout
DE69327644T2 (en) * 1993-01-07 2000-09-07 Ford France S.A., Rueil-Malmaison Remote controlled security system
WO1994018036A1 (en) * 1993-02-12 1994-08-18 Robert Bosch Gmbh Remote-controlled protection system for a motor vehicle
DE4308899C1 (en) * 1993-03-19 1994-02-03 Siemens Ag Remote-controlled vehicle locking using dialogue method - transmitting successive signals having respective codes between key transmitter and lock, each code being verified
US5377270A (en) * 1993-06-30 1994-12-27 United Technologies Automotive, Inc. Cryptographic authentication of transmitted messages using pseudorandom numbers
US5363448A (en) * 1993-06-30 1994-11-08 United Technologies Automotive, Inc. Pseudorandom number generation and cryptographic authentication
JPH0781521A (en) * 1993-06-30 1995-03-28 Alpine Electron Inc Security device
DE4325137A1 (en) * 1993-07-27 1995-02-02 Rbr Computertechnik Gmbh Process for actuating closure mechanisms with the aid of identification means
US5594429A (en) * 1993-10-27 1997-01-14 Alps Electric Co., Ltd. Transmission and reception system and signal generation method for same
US5680131A (en) * 1993-10-29 1997-10-21 National Semiconductor Corporation Security system having randomized synchronization code after power up
US5369706A (en) * 1993-11-05 1994-11-29 United Technologies Automotive, Inc. Resynchronizing transmitters to receivers for secure vehicle entry using cryptography or rolling code
CN1134206A (en) * 1993-11-05 1996-10-23 联合工艺汽车公司 Method for automatic resynchronization of transmitter/receiver pair in remote keyless entry system
DE4407966A1 (en) * 1994-03-10 1995-09-14 Valeo Borg Instr Verw Gmbh Electronic code lock, in particular for deactivating a motor vehicle immobilizer
EP0688929B1 (en) 1994-06-21 2004-10-13 Microchip Technology Inc. Secure self-learning
BE1008699A3 (en) * 1994-09-09 1996-07-02 Banksys Method and arrangement for selective give access to a security system.
US5841866A (en) * 1994-09-30 1998-11-24 Microchip Technology Incorporated Secure token integrated circuit and method of performing a secure authentication function or transaction
FR2726712B1 (en) * 1994-11-04 1997-01-31 Valeo Electronique REMOTE CONTROL SYSTEM USING ENCRYPTION, IN PARTICULAR FOR A MOTOR VEHICLE
DE4440349A1 (en) * 1994-11-11 1996-05-15 Bayerische Motoren Werke Ag Method for synchronizing two dialog-capable transceiver units for a code signal in a motor vehicle locking system
DE9419635U1 (en) * 1994-12-09 1995-03-02 Engel, Gerhard, Dipl.-Ing., 41564 Kaarst Safety device, in particular for motor vehicles
DE69526116T2 (en) * 1994-12-21 2002-11-21 Lear Automotive Dearborn, Inc. RF REMOTE CONTROL SYSTEM WITH IMMOBILIZER
FR2729777B1 (en) * 1995-01-25 1997-03-14 Plumer Sa DEVICE FOR REMOTE CONTROL BY HERTZIAN, INFRARED WAVES OR THE LIKE, OF MOTORIZED CLOSING SYSTEMS
FR2731035B1 (en) * 1995-02-28 1997-04-30 Ymos France ASSEMBLY CONSISTING OF AN ELECTRIC DOOR LOCK WITH ELECTRIC BACKUP FUNCTION AND ITS CONTROL MEANS, AND EQUIPMENT COMPRISING SEVERAL SUCH ASSEMBLIES
US5973611A (en) * 1995-03-27 1999-10-26 Ut Automotive Dearborn, Inc. Hands-free remote entry system
US5598476A (en) * 1995-04-20 1997-01-28 United Technologies Automotive, Inc. Random clock composition-based cryptographic authentication process and locking system
US5566212A (en) * 1995-04-24 1996-10-15 Delco Electronics Corporation Phase-locked loop circuit for Manchester-data decoding
DE19516992C1 (en) * 1995-05-09 1996-04-04 Siemens Ag Operating system for automobile anti-theft device
NL1001376C2 (en) * 1995-05-11 1996-11-12 Nederland Ptt Method for executing an electronic payment transaction with a variable number of payment units, as well as payment means and system for applying the method.
NL1000341C2 (en) * 1995-05-11 1996-11-12 Nederland Ptt Electronic payment transaction method for use with smart card
US6980655B2 (en) * 2000-01-21 2005-12-27 The Chamberlain Group, Inc. Rolling code security system
US7492905B2 (en) 1995-05-17 2009-02-17 The Chamberlain Group, Inc. Rolling code security system
US6690796B1 (en) 1995-05-17 2004-02-10 The Chamberlain Group, Inc. Rolling code security system
BR9606663A (en) 1995-05-17 1997-09-16 Chamberlain Group Inc Transmitter to send an encrypted signal to control a receiver actuator to receive an encrypted signal from a transmitter and to generate an actuation signal and receiver to receive an encrypted radio frequency signal from a transmitter and to generate an actuation signal
US5661804A (en) * 1995-06-27 1997-08-26 Prince Corporation Trainable transceiver capable of learning variable codes
US6191701B1 (en) 1995-08-25 2001-02-20 Microchip Technology Incorporated Secure self learning system
US5939998A (en) * 1995-12-15 1999-08-17 Ut Automotive Dearborn, Inc. System and method for reducing quiescent current in a microcontroller
US5699514A (en) * 1995-12-26 1997-12-16 Lucent Technologies Inc. Access control system with lockout
DE19600556A1 (en) * 1996-01-09 1997-07-24 Siemens Ag Method of operating an anti-theft system and anti-theft system
FR2745135B1 (en) * 1996-02-15 1998-09-18 Cedric Colnot METHOD FOR AUTHORIZING ACCESS BY A SERVER TO A SERVICE FROM PORTABLE MEMORY CARD TYPE ELECTRONIC MICROCIRCUIT DEVICES
US6026165A (en) * 1996-06-20 2000-02-15 Pittway Corporation Secure communications in a wireless system
US6049289A (en) * 1996-09-06 2000-04-11 Overhead Door Corporation Remote controlled garage door opening system
US6108326A (en) * 1997-05-08 2000-08-22 Microchip Technology Incorporated Microchips and remote control devices comprising same
US6781507B1 (en) * 1997-05-16 2004-08-24 Directed Electronics, Inc. Remote start, passive anti theft security system
US6466780B1 (en) * 1997-09-03 2002-10-15 Interlok Technologies, Llc Method and apparatus for securing digital communications
ATA9298A (en) * 1998-01-21 2000-10-15 Magna Auteca Zweigniederlassun ENTRANCE CONTROL DEVICE
US6157722A (en) * 1998-03-23 2000-12-05 Interlok Technologies, Llc Encryption key management system and method
US6169492B1 (en) * 1998-07-29 2001-01-02 Motorola, Inc. Remote keyless entry user-transparent auto re-synchronization apparatus and method
US6130622A (en) * 1998-08-10 2000-10-10 Trw Inc. System and method for remote convenience function control having a rekey security feature
DE19960783A1 (en) * 1999-12-16 2001-06-21 Mannesmann Vdo Ag Device for activating and / or deactivating a safety device
EP1354300B1 (en) * 2000-12-19 2007-08-01 Azoteq (PTY) Limited Method of and apparatus for transferring data
US20030193448A1 (en) * 2002-01-15 2003-10-16 Tsui Philip Y.W. Transmitter for operating rolling code receivers
DE10350854A1 (en) * 2003-10-31 2005-06-02 Conti Temic Microelectronic Gmbh Access control system, especially for motor vehicles, has code selection device that selects code from stored codes, sends current position of current code to signal generator, which sends associated code to controller
US7281219B2 (en) * 2003-12-05 2007-10-09 International Business Machines Corporation Blended learning experience tool and method
US7371070B2 (en) * 2003-12-05 2008-05-13 International Business Machines Corporation Operationalizing a learning solution
US7914288B2 (en) * 2004-10-07 2011-03-29 International Bussiness Machines Corporation On demand learning
US9148409B2 (en) 2005-06-30 2015-09-29 The Chamberlain Group, Inc. Method and apparatus to facilitate message transmission and reception using different transmission characteristics
US8422667B2 (en) 2005-01-27 2013-04-16 The Chamberlain Group, Inc. Method and apparatus to facilitate transmission of an encrypted rolling code
TWI292665B (en) * 2005-09-29 2008-01-11 Syncomm Technology Corp Method and apparatus for performing automatic identity code learning and identity code verification in a wireless communication system
GB0707928D0 (en) * 2007-04-25 2007-05-30 Delivery Works Ltd Delivery system
JP4970221B2 (en) * 2007-11-16 2012-07-04 株式会社東芝 Power saving control apparatus and method
CN107464313B (en) * 2016-06-06 2020-05-05 上海擎感智能科技有限公司 Key, control method and system and electronic equipment
US10652743B2 (en) 2017-12-21 2020-05-12 The Chamberlain Group, Inc. Security system for a moveable barrier operator
US11074773B1 (en) 2018-06-27 2021-07-27 The Chamberlain Group, Inc. Network-based control of movable barrier operators for autonomous vehicles
WO2020028502A1 (en) 2018-08-01 2020-02-06 The Chamberlain Group, Inc. Movable barrier operator and transmitter pairing over a network
US10997810B2 (en) 2019-05-16 2021-05-04 The Chamberlain Group, Inc. In-vehicle transmitter training

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1595796A (en) * 1978-04-21 1981-08-19 Hugh John Pushman Security systems
EP0098437A2 (en) * 1982-07-09 1984-01-18 Hülsbeck & Fürst GmbH. & Co. KG Electronic locking device with key and lock parts interacting by means of electric pulses
EP0171323A1 (en) * 1984-07-18 1986-02-12 Jacques Lewiner Operating and controlling system for a plurality of accesses equipped with coded locks
EP0219060A2 (en) * 1985-10-11 1987-04-22 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Security device for an automotive vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234538A1 (en) * 1982-09-17 1984-03-22 Siemens AG, 1000 Berlin und 8000 München METHOD FOR SECURING THE CODE OF AN ELECTRONIC KEY
DE3244049C2 (en) * 1982-11-27 1986-06-26 Kiekert GmbH & Co KG, 5628 Heiligenhaus Central locking system for a motor vehicle
DE3320721A1 (en) * 1983-06-08 1984-12-13 Siemens AG, 1000 Berlin und 8000 München METHOD FOR SECURING THE CODE OF AN ELECTRONIC KEY
DE3407436A1 (en) * 1984-02-29 1985-08-29 Siemens AG, 1000 Berlin und 8000 München METHOD FOR SECURING THE CODE OF AN ELECTRONIC KEY
DE3407469A1 (en) * 1984-02-29 1985-09-05 Siemens AG, 1000 Berlin und 8000 München METHOD FOR SECURING THE CODE OF AN ELECTRONIC KEY
EP0215291B1 (en) * 1985-09-10 1991-02-27 Hülsbeck & Fürst GmbH. & Co. KG Electronic locking device for motor vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1595796A (en) * 1978-04-21 1981-08-19 Hugh John Pushman Security systems
EP0098437A2 (en) * 1982-07-09 1984-01-18 Hülsbeck & Fürst GmbH. & Co. KG Electronic locking device with key and lock parts interacting by means of electric pulses
EP0171323A1 (en) * 1984-07-18 1986-02-12 Jacques Lewiner Operating and controlling system for a plurality of accesses equipped with coded locks
EP0219060A2 (en) * 1985-10-11 1987-04-22 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Security device for an automotive vehicle

Also Published As

Publication number Publication date
DE3636822C1 (en) 1987-10-15
EP0265728A2 (en) 1988-05-04
US4847614A (en) 1989-07-11
DE3636822C2 (en) 1993-12-23

Similar Documents

Publication Publication Date Title
EP0265728A3 (en) Electronic remote control device for the central locking systems of motor vehicles
DE2408947C3 (en) Circuit arrangement for frequency detection in the field of traffic radio reception
DE10106400B4 (en) Access control system
EP0693401A3 (en) Data transmission process adapted for a data processing system in vehicles
WO1998008711A1 (en) Arrangement for a motor vehicle regulation system
DE2434886C2 (en) Transmitting and receiving device
DE3341900C2 (en)
EP0365866A3 (en) Central locking device for a plurality of units and/or parts of an entire installation, in particular an anti-theft device for motor vehicles
DE69030167T2 (en) Microcontroller for controlling an aircraft
EP0458097A2 (en) Data transmission system
DE10054745B4 (en) Method for the safe transmission of sensor signals and apparatus for carrying out the method
EP1003305A2 (en) Arrangement for controlling predetermined functions via a data bus
DE69028638T2 (en) RAILWAY SWITCHING SYSTEM
EP0798683A3 (en) Fire alarming system
DE4409708A1 (en) Circuit arrangement for processing and A / D conversion of an analog signal
WO1998004798A3 (en) Locking system for a motor vehicle
DE4306185C2 (en) Device for the bidirectional transmission of data words
EP1142209A2 (en) Method and system for transmitting data in a motor vehicle
DE2457611C3 (en) Multiplex transmission system
EP0403792A3 (en) Fluid pressure actuated brake installation for vehicles
DE3232303C2 (en)
EP0013329B1 (en) Method and circuit arrangement for the transmission of a binary signal by frequency-modulation
EP0126867B1 (en) Device for zeroing signal sources, especially sensor arrangements
DE2903075C2 (en) Method and device for pulse-length-coded remote transmission
DE2508881C3 (en) Circuit arrangement for interference suppression in radar receivers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19890721

17Q First examination report despatched

Effective date: 19920304

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19931109

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KELLER, HERBERT