EP0257376B1 - Installation de fermeture électronique comportant au moins une serrure, en particulier applicable aux véhicules automobiles - Google Patents

Installation de fermeture électronique comportant au moins une serrure, en particulier applicable aux véhicules automobiles Download PDF

Info

Publication number
EP0257376B1
EP0257376B1 EP19870111270 EP87111270A EP0257376B1 EP 0257376 B1 EP0257376 B1 EP 0257376B1 EP 19870111270 EP19870111270 EP 19870111270 EP 87111270 A EP87111270 A EP 87111270A EP 0257376 B1 EP0257376 B1 EP 0257376B1
Authority
EP
European Patent Office
Prior art keywords
transmission
mark
sequence
receiver
marks
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
EP19870111270
Other languages
German (de)
English (en)
Other versions
EP0257376B2 (fr
EP0257376A1 (fr
Inventor
Anton Dipl.-Ing. Bachhuber
Arnost Proske
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.)
Bayerische Motoren Werke AG
Siemens AG
Original Assignee
Bayerische Motoren Werke AG
Siemens AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6307207&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0257376(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayerische Motoren Werke AG, Siemens AG filed Critical Bayerische Motoren Werke AG
Publication of EP0257376A1 publication Critical patent/EP0257376A1/fr
Application granted granted Critical
Publication of EP0257376B1 publication Critical patent/EP0257376B1/fr
Publication of EP0257376B2 publication Critical patent/EP0257376B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G07C2009/00238—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
    • 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
    • G07C2009/00785—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 light
    • 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
    • G07C2209/06—Involving synchronization or resynchronization between transmitter and receiver; reordering of codes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5973—Remote control

Definitions

  • the invention relates to an electronic locking system according to the preamble of claim 1 and a method for resynchronization according to the preamble of claim 10.
  • the basis of the operation of locking systems of this type is an initialization, by means of which a sequence of reference markings is fixedly predetermined in the receiver of the receiver and a sequence of transmission markings identical to this in the transmitter of the transmitter.
  • the reference transmitter stands on a current reference marker that is identical to the current transmitter marker of the marker transmitter in the transmitter.
  • the two sequences are determined on the basis of a stored algorithm and of start parameters, which are determined by a random process.
  • the transmitter emits a transmission signal with a transmission marking, which e.g. is emitted by a luminescent diode in the infrared range.
  • the transmission signal is converted in the receiver into an electrical signal from which the receiver recovers the transmission mark, which is compared in the receiver with a reference mark supplied by the reference transmitter. If the reference mark and the send mark are identical, the transmitter and receiver are synchronized and the control device initiates the opening of the lock.
  • a synchronization unit in the receiver restores the synchronization between the reference transmitter and the marker transmitter under certain conditions (post-synchronization).
  • a missing identity between the reference mark and the send mark can e.g. then occur when the transmitter emits a transmission signal that does not reach the receiver.
  • the reference transmitter must be re-synchronized in the receiver in order to cause the locking system to open the lock.
  • the object of the present invention is therefore, in the absence of synchronization between transmitter and receiver, to carry out a re-synchronization in a simple and reliable manner so that actuation of the electronic locking system by unauthorized persons is avoided with a high degree of probability.
  • the receiver has a memory, e.g. a RAM in which a section of the sequence of transmission markings - called the transmission sequence - which is formed by repeated actuation of the transmitter is stored.
  • the receiver compares this transmission sequence with a reference sequence, which consists of successive reference marks supplied by a reference transmitter, for identity.
  • the reference sequence lies within a post-synchronization area, which extends over a section of the sequence of reference markings and begins with the reference marking which the first desynchronous transmission mark meets. If the receiver establishes identity between the transmission sequence and the reference sequence within the post-synchronization area, the synchronization unit synchronizes the reference transmitter to the last transmission marking of the transmission sequence, and the lock of the locking system is opened by the control unit.
  • catch sequence In a catch area at the beginning of the post-synchronization area there can additionally be a relatively short sequence of reference markings - called catch sequence - within which the synchronization unit first searches for a reference mark that is identical to the received transmission mark. If an identical reference mark is found within the catch sequence, the synchronization unit synchronizes the reference transmitter to the received send markings within a very short time. Only if there is no identity between the send mark and the reference mark within the catch area is it examined whether a reference sequence identical to the received send sequence exists in the remaining part of the post-synchronization area.
  • the following example shows the probability that an unauthorized person can open the lock with a transmitter (probability of break-in): If one assumes that a broadcast mark or reference mark consists of a dual word with 24 digits, there are a maximum of 2 24 different broadcast markings or Reference marks. The probability that an unauthorized person accidentally finds a synchronous transmit flag is, therefore, only 2- 24, is thus approximately equal to 5.96 x 10 8 If a capture sequence eg 100 fiducials long, results for the Einbrech denkeit a value of 5.96 x 10- 6 . If you set the length of the post-synchronization Reichs minus the length of the catch sequence with 1000 reference marks and if the transmission sequence is two transmission marks long, the probability of the break-in is a value of
  • the probability of a break-in can be further reduced.
  • a random generator can be accommodated in the synchronization unit of the receiver, which redetermines the length of the capture range after each re-synchronization.
  • the length of the reference sequence, which the receiver checks for post-synchronization in the post-synchronization area with the received transmission sequence, can advantageously also be carried out automatically by the receiver, e.g. reset after every resynchronization.
  • the security of the method can be additionally increased by the length of the post-synchronization area - e.g. after each resynchronization - is automatically reset by the receiver.
  • the variation of the post-synchronization range can either be determined via a calculation rule in the synchronization unit or e.g. are generated via a random generator in the synchronization unit.
  • the receiver can additionally contain a timer which blocks the receiver for a waiting time if a re-synchronization fails; During this waiting period, the recipient does not respond to any send markings. The authorized user of the locking system is thereby given the opportunity to have the locking system open after the waiting time without re-initialization by a new transmission marking.
  • the locking system of a motor vehicle has a transmitter 1 and a receiver 2, which is connected to a lock 3 of the motor vehicle and is accommodated in the motor vehicle in the vicinity of the interior mirror.
  • the transmitter 1 has a trigger 12, e.g. a button which, after manual actuation, emits a trigger signal AS to a marker 11, which is connected to the trigger 12.
  • a trigger 12 e.g. a button which, after manual actuation, emits a trigger signal AS to a marker 11, which is connected to the trigger 12.
  • the marker generator 11 Excited by the trigger signal AS, the marker generator 11 generates an actual transmission marker SM j per actuation by means of an algorithm (FIG. 3), which consists of a dual word with 24 digits.
  • a low-consumption CMOS one-chip microcomputer is used as the marker 11, which transmits the transmission marker SM; outputs as a binary signal to a modulator 13 which has a driver transistor. This switches the current through the luminescence diode 14 in time with the binary signal, which emits a transmission signal SI - to which the transmission marking SM is modulated - as radiation in the infrared range to the receiver 2 in the motor vehicle.
  • the receiver 2 contains a phototransistor 21 as the receiving stage, which, when a transmission signal SI is received, forwards a signal corresponding thereto to a demodulator 22. At its output, this again delivers pulses corresponding to the transmission marking SM i , which are further processed by a microcomputer 23.
  • This essentially contains a microprocessor 230 which, through appropriate programming, acts as a synchronization unit.
  • RAM random access memory
  • timer 236, a control unit 237, a start switch 24 and an input switch 25 are connected to it via a BUS 231.
  • the processor 230 stores the successively incoming transmission markings SM of a transmission sequence SF in the memory 232, hereinafter referred to as the marking memory.
  • the memory 233 serves as a reference transmitter and contains - controlled by the processor - an old value BM o and a new value BM alternately one after the other ; the reference mark BM.
  • the new value (BM i ) is generated from the old value (BM o ) x-1 according to an algorithm (FIG. 3) after receipt of a transmission mark. This is generated during the initialization with the aid of a random generator 2301 contained in the microprocessor or is supplied by the memory 234 after a failed re-synchronization, which is therefore referred to below as the old value memory.
  • the last new value (BM i ) x-1 serves as the old value (BM o ) x-1 for determining the next new value (BM i ) x .
  • the receiver 2 has an input switch 25 with three switches which are connected to the BUS 231: With a catch sequence switch, the length of the capture range is FB, with a reference sequence switch the length of a reference sequence BF and with the length of the post-synchronization area NB can be set by a range switch.
  • the microcomputer 23 in the receiver 2 is connected to the transmitter 1 by means of a plug-in cable 6. Thereafter, the start switch 24 is manually operated for a random period of time which the random generator 2301 measures by counting up. After the start switch 24 has been released, the processor 230 supplies a binary random word of, for example, six bytes in length, the value of which depends on the actuation time of the start switch 24. The first three bytes of this random word form an old value for the reference mark BM and are stored in the reference transmitter 233. The last three bytes form a partial word HAZ, which is stored in memory 235 - hereinafter referred to as random memory.
  • This random word formed during the initialization (old value of the reference marking and partial word HAZ) is simultaneously loaded into the marking transmitter 11 of the transmitter 1 via the cable 6.
  • Each transmission signal SI emitted by transmitter 1 therefore has a transmission marking SM ; , which is determined by the start parameters mentioned and an algorithm which is also identical for the transmitter and receiver.
  • each transmission mark SM of a transmission signal is stored by the microcomputer in the marking memory 232, the capacity of which is dimensioned to accommodate all transmission markings in a transmission sequence.
  • a new value of the reference mark is formed, based on the start parameters mentioned above and the algorithm on the basis of which the send mark was generated in the transmitter. Therefore, as long as each transmission mark given by the sender reaches the recipient, the transmission mark and the new value of the reference mark are identical. If the microcomputer 23 detects this, it emits an opening signal OS to the lock 3 via the control unit 237 (synchronous case).
  • the computer 23 After receiving a transmission mark SM x , the computer 23 first checks whether the old value (BM o ) x . 1 of the reference mark is zero or not. If this value is zero, a logical one is added to the first position of the content of the reference transmitter 233 (point G in FIG. 3).
  • the computer 23 checks whether the penultimate digit NLSB and the last digit LSB of (BM o ) x-1 together result in the number 10 or the number 01. If one of these numbers is present, the content of the reference transmitter 233 is shifted to the right by one position and a one is added to the first position MSB (point G in FIG. 3). If the number 10 or 01 is not available, the memory content of 233 is only shifted to the right by one digit.
  • the partial word HAZ from the random memory 235 is now added to the content of the reference transmitter 233.
  • the new value (BM i ) x of the reference mark is thus present in the reference transmitter 233.
  • the processor 230 Upon receipt of the first transmission marking SM x , it is stored in the marking memory 232 and the old value (BM o ) x-1 in the old value memory 234. The processor then causes the new value (BM j ) x of the reference mark to be generated in accordance with the algorithm according to FIG. 3 and stores it in the reference transmitter 233. The processor 230 then compares this new value with the send mark SM x for identity.
  • the program branches to point P: The processor then sends a synchronization signal SYN to the control device 237, which then opens the lock 3 with an opening signal OS.
  • the processor 230 If the processor 230 has determined that there is no identity between the first transmission mark SM x and the first reference mark (BM i ) x , it examines whether within a catch sequence FF of m successive reference marks at the beginning of the post-synchronization area NB there is a - desynchronous - transmission mark SM x identical reference mark (BM i ) x + p exists. In order to generate successive reference marks (BM i ) x + p according to the algorithm according to FIG. 3, the loop labeled A in FIG. 4 is run through until either a reference mark identical to SM x has been found or the loop has been run through m times, which is equally significant with the end of the catch sequence.
  • a search is made for a reference mark that is identical to SM x in the part of the resynchronization area NB following the catch area FB.
  • the index standing on m is increased by 1 and then the reference markings (BM j ) - x + p according to FIG. 3 are generated in a loop denoted by B in FIG. 4 - similar to loop A -.
  • This loop is exited as soon as a reference mark (BM i ) x + p identical to SM x is found or after y passes the end of the post-synchronization range is reached.
  • the processor causes the following reference mark (BM i ) x + p + 1 to be generated in accordance with the algorithm according to FIG. 3 and checks whether this reference mark corresponds to the Send marker SM x + 1 is identical. If this is the case, the resynchronization has been successful and the steps for opening the lock already described and starting at P are carried out.
  • the processor issues a set signal SW to the timer 236, which emits an acknowledgment signal QW after a programmed waiting time. Only then is the receiver ready to receive again. In the meantime between the failed resynchronization and delivery of the acknowledgment signal, however, the receiver is blocked, so that incoming send marks SM are not processed.
  • Processor 230, random generator 2301, memories 232 to 235 and control device 237 can be in a functional unit, e.g. a one-chip microcomputer 23 with mask-programmable ROM can be combined.

Landscapes

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

Claims (10)

1. Installation de fermeture électronique comportant au moins une serrure (3), de préférence pour des véhicules automobiles, comprenant
- un émetteur (1) qui, lors de chaque opération d'émission, envoie un signal d'émission (SI), qui est modulé par une marque d'émission (SM),
- un générateur de marques (11) situé dans l'émetteur (1) et qui associe à chaque signal d'émission (SI) une marque d'émission (SMi) tirée d'une suite de marques d'émission (SM),
- un récepteur (2) qui est pourvu
- - d'un générateur de référence (233), qui délivre une marque actuelle de référence (BMi) tirée d'une suite de marques de référence (BM), qui est identique à la suite de marques d'émission (SM) de l'émetteur (1) et qui est commandé, par chaque signal d'émission reçu (SI), sur une nouvelle marque de référence (BM) de la suite,
- - et d'une unité de commande (237) qui, en cas d'égalité entre la marque d'émission (SM;) et la marque de référence (BMi) (synchronisation), ouvre la serrure (3) d'une manière commandée par l'unité de synchronisation (23),
- - et d'une unité de synchronisation (23), qui, après chaque signal d'émission (SI), compare la marque actuelle d'émission (SMi) de ce signal à la nouvelle valeur (BM), délivrée par le générateur de référence (233), de la marque de référence et, dans le cas où il n'y a pas identité, rétablit la synchronisation de l'émetteur (1) et du récepteur (2) (post-synchronisation) lorsque les marques d'émission (SMi) de la nouvelle valeur de la marque de référence sont situées dans une plage de postsynchronisation (NB), qui s'étend sur une section de la suite de marques de référence (BM),
caractérisée par le fait
- que l'unité de synchronisation (23) possède une mémoire de marques (232), dans laquelle est mémorisée une suite d'émission (SF) qui est constituée par les marques d'émission (SM) de n signaux d'émission successifs (SI), et
- que l'unité de synchronisation (23) est agencée de telle sorte qu'elle réalise la post-synchronisation du générateur de référence (233) sur la marque de référence (BMi) qui est identique à la n-ème marque d'émission (SM) de la séquence d'émission (SF), lorsque pendant la plage de post-synchronisation (NB) apparaît une suite de références (BF) formée par n marques de référence (BN) et qui est identique à la suite d'émission (SF).
2. Installation de fermeture électronique suivant la revendication 1, caractérisée par le fait que l'unité de synchronisation (23) réalise la post- synchronisation du générateur de référence (233), en cas d'absence de synchronisation, sur une marque de référence (BMi) identique à la marque d'émission (SM;) reçue, lorsque cette marque d'émission (SM;) est présente à l'intérieur d'une séquence de captage (FF) de marques de référence (BM) qui s'étend uniquement sur une partie de la plage de post- synchronisation (NB), au début de cette dernière.
3. Installation de fermeture électronique suivant la revendication 2, caractérisée par le fait que la longueur de la suite d'accrochage (FF) est réglable dans le récepteur (2).
4. Installation de fermeture électronique suivant l'une des revendications 1 à 3, caractérisée par le fait que la longueur de la suite de référence (BF) est réglable dans le récepteur (2).
5. Installation de fermeture électronique suivant l'une des revendications précédentes, caractérisée par le fait que la longueur de la plage de post-synchronisation (NB) est réglable dans le récepteur (2).
6. Installation de fermeture électronique suivant la revendication 1 ou 2, caractérisée par le fait qu'il est prévu, dans le récepteur (2), une minuterie (236) qui est commandée par l'unité de synchronisation (23) et qui bloque le récepteur (2) pendant un intervalle de temps d'attente lorsqu'aucune post-synchronisation n'est possible pendant la plage de post-synchronisation (NB).
7. Installation de fermeture électronique suivant la revendication 6, caractérisée par le fait
- qu'il est prévu une mémoire de valeurs anciennes (234), dans laquelle la dernière valeur ancienne (BMo) de la marque de référence est mémorisée, et
- que l'unité de synchronisation (23) règle le générateur de référence (237) sur cette valeur ancienne, lorsque la postsynchronisation a échoué.
8. Émetteur pour une installation de fermeture électronique pour au moins une serrure (3), de préférence pour un véhicule automobile, caractérisé par
a) un déclencheur (12) qui délivre un signal de déclenchement (AS) lors de son actionnement,
b) un générateur de marques (11) qui est raccordé au déclencheur (12) et qui produit une marque d'émission (SM) lors de l'entrée du signal de déclenchement (AS), conformément à un algorithme prédéterminé,
c) un modulateur (13) qui module un signal de commande avec la marque d'émission (SM), et
d) un émetteur (14) servant à émettre un signal d'émission (SI) et qui est commandé par le signal de commande modifié du modulateur (13) de telle sorte que, lors de chaque opération d'émission, le signal d'émission, qui est modulé par une marque d'émission (SM), est délivré.
9. Récepteur pour une installation de fermeture électronique pour au moins une serrure (3), de préférence pour un véhicule automobile, caractérisé par
a) un capteur (21) servant à recevoir un signal d'émission (SI),
b) un générateur de référence (233), qui délivre une marque de référence (BM;) à partir d'une suite de marques de référence qui est identique à la suite de marques d'émission (SM) dans l'émetteur (1) et qui peut être commandée par chaque signal d'émission reçu (SI) sur une nouvelle marque de référence (BM;) de la suite;
c) une unité de synchronisation (23) qui, après chaque signal d'émission (SI), compare la marque d'émission (SM) de ce signal à la marque de référence (BM;) précisément délivrée par le générateur de référence (21) et, en cas d'absence d'identité, rétablit la synchronisation de l'émetteur (1) et du récepteur (2) (post-synchronisation), lorsque la marque d'émission (SMi) et la marque de référence (BMi) sont situées à l'intérieur d'une plage de post-synchronisation (NB) qui s'étend sur une section de la suite de marques de référence (BM),
d) une unité de commande (237) qui, en cas d'égalité des deux marques (SMi, BMi), ouvre la serrure (3) d'une manière commandée par l'unité de synchronisation (23).
10. Procédé pour réaliser la post-synchronisation d'un récepteur (2) et d'un émetteur (1) d'une installation de fermeture électronique comportant au moins une serrure (3), de préférence pour des véhicules automobiles, et selon lequel
- l'émetteur (1) délivre, lors de chaque opération d'émission, un signal d'émission (SI) qui est modulé par une marque d'émission (SM) tirée d'une suite de marques d'émission,
- dans le récepteur (2), une nouvelle valeur (BMi) de la marque de référence (BMi) tirée d'une suite de marques de référence (BM), qui est identique à la suite de marques d'émission (SM), est réglée par chaque signal d'émission (SM;),
- dans le récepteur (2), chaque actuelle d'émission (SMi) est comparée à la nouvelle valeur (BM;) de la marque de référence, et
- - en cas d'identité, la serrure est ouverte, et
- - en cas d'absence d'identité, cette identité est rétablie au moyen d'une post-synchronisation de l'émetteur, lorsqu'à l'intérieur d'une plage de post-synchronisation (NB), qui s'étend sur une section tirée de la suite de marques de référence (BM), est située une marque de référence (BM), qui est identique à une marque d'émission (SM;),
caractérisé par le fait
que dans le récepteur est mémorisée une suite d'émission (SF) qui est constituée par les marques d'émission (SM) de n signaux successifs d'émission (SI),
que la post-synchronisation est exécutée lorsque dans la plage de post-synchronisation (NB) est présente une suite de références (BF) formée de n marques de référence (BM) et qui est identique à la suite d'émission.
EP19870111270 1986-08-12 1987-08-04 Installation de fermeture électronique comportant au moins une serrure, en particulier applicable aux véhicules automobiles Expired - Lifetime EP0257376B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3627291 1986-08-12
DE3627291 1986-08-21

Publications (3)

Publication Number Publication Date
EP0257376A1 EP0257376A1 (fr) 1988-03-02
EP0257376B1 true EP0257376B1 (fr) 1991-11-06
EP0257376B2 EP0257376B2 (fr) 2001-07-25

Family

ID=6307207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870111270 Expired - Lifetime EP0257376B2 (fr) 1986-08-12 1987-08-04 Installation de fermeture électronique comportant au moins une serrure, en particulier applicable aux véhicules automobiles

Country Status (4)

Country Link
US (1) US4825210A (fr)
EP (1) EP0257376B2 (fr)
DE (1) DE3774364D1 (fr)
ES (1) ES2026498T3 (fr)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4928098A (en) * 1984-03-30 1990-05-22 Siemens Aktiengesellschaft Method for code protection using an electronic key
US5412379A (en) * 1988-05-27 1995-05-02 Lectron Products, Inc. Rolling code for a keyless entry system
US5614885A (en) * 1988-12-05 1997-03-25 Prince Corporation Electrical control system for vehicle options
US5475366A (en) * 1988-12-05 1995-12-12 Prince Corporation Electrical control system for vehicle options
US5223814A (en) * 1988-12-05 1993-06-29 Prince Corporation Sensor for vehicle accessories
IT1227401B (it) * 1988-12-06 1991-04-08 Delta Elettronica Spa Dispositivi per la trasmissione a distanza di comandi in sicurezza
SE463678B (sv) * 1989-02-10 1991-01-07 Laasinvaest Svenska Ab Anordning vid laashus
US5113182B1 (en) * 1990-01-19 1995-11-07 Prince Corp Vehicle door locking system detecting that all doors are closed
US5627529A (en) * 1994-03-11 1997-05-06 Prince Corporation Vehicle control system with trainable transceiver
US5304812A (en) * 1990-11-21 1994-04-19 Sharp Kabushiki Kaisha Optoelectronic device, information apparatus and data transmission system using optoelectronic device for simplifying wirings and reducing size, and method of controlling the optoelectronic device
US5191610A (en) * 1992-02-28 1993-03-02 United Technologies Automotive, Inc. Remote operating system having secure communication of encoded messages and automatic re-synchronization
US5623257A (en) * 1992-03-10 1997-04-22 Bachhuber; Anton Method and apparatus for supplying power to the receiver of a motor vehicle locking system
EP0605996B1 (fr) * 1993-01-07 2000-01-19 Ford Motor Company Limited Système de sécurité commande à distance
DE9304520U1 (de) * 1993-03-25 1994-07-28 Diehl Gmbh & Co Fernsteuerung, insbesondere für eine Riegeleinrichtung
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
US5528216A (en) * 1993-08-23 1996-06-18 Main; Louis Vehicle anti-theft brake locking system
US5680131A (en) * 1993-10-29 1997-10-21 National Semiconductor Corporation Security system having randomized synchronization code after power up
US5420925A (en) * 1994-03-03 1995-05-30 Lectron Products, Inc. Rolling code encryption process for remote keyless entry system
US5774060A (en) * 1994-08-16 1998-06-30 Kiekert Ag Motor-vehicle central lock system with transponder in key
DE4428947C1 (de) * 1994-08-16 1996-04-04 Kiekert Ag Schließvorrichtung für ein Kraftfahrzeug mit einer Fernbetätigungseinrichtung sowie mit einem Transponder
US5612683A (en) * 1994-08-26 1997-03-18 Trempala; Dohn J. Security key holder
DE9419635U1 (de) * 1994-12-09 1995-03-02 Engel Gerhard Dipl Ing Sicherungseinrichtung insbesondere für Kraftfahrzeuge
US5586457A (en) * 1994-12-09 1996-12-24 Keener; Manuel L. Vehicle anti-theft device
CA2139073C (fr) * 1994-12-23 1999-04-20 Normand Dery Dispositif de verrrouillage opto-electrique pour demarreur d'automobile
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
CA2193846C (fr) * 1995-05-17 2004-02-17 Bradford L. Farris Systeme de securite a code de brassage
US6690796B1 (en) * 1995-05-17 2004-02-10 The Chamberlain Group, Inc. Rolling code security system
US5661804A (en) * 1995-06-27 1997-08-26 Prince Corporation Trainable transceiver capable of learning variable codes
US5777546A (en) * 1996-02-08 1998-07-07 Chrysler Corporation Method of selection of deselection of automatic power door locks
US5862225A (en) * 1996-12-16 1999-01-19 Ut Automotive Dearborn, Inc. Automatic resynchronization for remote keyless entry systems
FR2774121B1 (fr) 1998-01-29 2000-04-07 Siemens Automotive Sa Systeme de verrouillage pour vehicule automobile a code evolutif et identification
FR2774120B1 (fr) 1998-01-29 2000-04-07 Siemens Automotive Sa Systeme de verrouillage pour vehicule automobile a code evolutif et identification
US6169492B1 (en) * 1998-07-29 2001-01-02 Motorola, Inc. Remote keyless entry user-transparent auto re-synchronization apparatus and method
US6354650B2 (en) 1999-08-04 2002-03-12 David L. Terhaar Remotely operated locking device for a truck topper
DE19960783A1 (de) 1999-12-16 2001-06-21 Mannesmann Vdo Ag Vorrichtung zur Aktivierung und/oder Deaktivierung einer Sicherheitseinrichtung
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
JP4850682B2 (ja) * 2006-03-07 2012-01-11 富士通株式会社 ロックシステム、ロック解除装置、機器、ロック解除方法及び回路装置
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
US11423717B2 (en) 2018-08-01 2022-08-23 The Chamberlain Group Llc 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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3225754A1 (de) * 1982-07-09 1984-01-12 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Verfahren zur schliesswirksamen wechselwirkung eines schluesselartigen teils mit einem schlossartigen teil
EP0215291A1 (fr) * 1985-09-10 1987-03-25 Hülsbeck & Fürst GmbH. & Co. KG Dispositif de serrage pour véhicules automobiles
EP0219060A2 (fr) * 1985-10-11 1987-04-22 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Dispositif de sécurité pour véhicule à moteur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240945A1 (de) * 1982-11-05 1984-05-10 Bayerische Motoren Werke AG, 8000 München Diebstahl-sicherungsvorrichtung fuer kraftfahrzeuge
DE3234539A1 (de) * 1982-09-17 1984-03-22 Siemens AG, 1000 Berlin und 8000 München Verfahren zur code-sicherung bei einem elektronischen schluessel
DE3244049C2 (de) * 1982-11-27 1986-06-26 Kiekert GmbH & Co KG, 5628 Heiligenhaus Zentralverriegelungsanlage für ein Kraftfahrzeug
JPS6057729A (ja) * 1983-09-08 1985-04-03 Nippon Soken Inc 携帯用送信器
JPS6064272A (ja) * 1983-09-19 1985-04-12 Nissan Motor Co Ltd 無線式制御装置
JPS60119873A (ja) * 1983-11-29 1985-06-27 日産自動車株式会社 車両用施錠制御装置
DE3407469A1 (de) * 1984-02-29 1985-09-05 Siemens AG, 1000 Berlin und 8000 München Verfahren zur code-sicherung bei einem elektronischen schluessel
DE3484245D1 (de) * 1984-05-29 1991-04-11 Siemens Ag Verfahren und anordnung zum ueberwachen des synchronlaufs von schluesselgeraeten.
US4744021A (en) * 1986-02-01 1988-05-10 Kristy Brickton D Computer controlled deadbolts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3225754A1 (de) * 1982-07-09 1984-01-12 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Verfahren zur schliesswirksamen wechselwirkung eines schluesselartigen teils mit einem schlossartigen teil
EP0215291A1 (fr) * 1985-09-10 1987-03-25 Hülsbeck & Fürst GmbH. & Co. KG Dispositif de serrage pour véhicules automobiles
EP0219060A2 (fr) * 1985-10-11 1987-04-22 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Dispositif de sécurité pour véhicule à moteur

Also Published As

Publication number Publication date
EP0257376B2 (fr) 2001-07-25
DE3774364D1 (de) 1991-12-12
ES2026498T3 (es) 1992-05-01
EP0257376A1 (fr) 1988-03-02
US4825210A (en) 1989-04-25

Similar Documents

Publication Publication Date Title
EP0257376B1 (fr) Installation de fermeture électronique comportant au moins une serrure, en particulier applicable aux véhicules automobiles
DE69829088T2 (de) Verfahren und Vorrichtung zur Übertragung von Datenrahmen
DE69729064T2 (de) Resynchronisation durch variablen Tastendruck für fernbedienbare schlüssellose Eingangssystem
DE4204463C2 (de) Identifikations-Informations-Sende-/Empfangsvorrichtung
DE3611147C2 (de) Vorrichtung zur Fernsteuerung von in einem Fahrzeug eingebauten Betätigungsmitteln
DE19619798A1 (de) Lernfähiger Sendeempfänger
DE2514789A1 (de) Verfahren und anordnung zur frequenzumtast(fsk)-uebertragung
DE3105199A1 (de) Verfahren und system zur uebertragung von datenpaketen
DE69923319T2 (de) Benutzertransparente selbstsynchronisation eines schlüssellosen eingangssystems
EP0616286A1 (fr) Procédé d'allocation d'adresses de bus
EP0725515A2 (fr) Procédé d'initialisation d'un réseau avec plusieurs participants pouvant fonctionner comme maître
DE4218500A1 (de) Fernsteuerung
EP0103790A2 (fr) Procédé de codage pour une clé électronique
EP0973987A1 (fr) Procede et dispositif pour associer une telecommande a une station de base
WO1999008471A2 (fr) Procede pour le fonctionnement d'une telecommande, et telecommande associee
DE69817831T2 (de) Verfahren eines endgerätes zum zusammenfügen von aus verschiedenen zonen gesendeten nachrichtenfragmenten
DE4223258C2 (de) Verfahren zur verifizierbaren Übertragung von Daten
DE2711377A1 (de) Verfahren und anordnung zur faksimile-bilduebertragung
DE1506092A1 (de) Anordnung zum Simulieren der Antwortsignale von Radarzielen
DE2812668C2 (de) Korrespondierendes Kommunikationssystem zur Übertragung von Telegrammen
DE2803424B2 (de) Verfahren und Schaltungsanordnung zum Adressieren wenigstens einer Empfangsstation von einer Sendestation aus
DE3050171C1 (de) Vorrichtung zur Steuerung von Vermittlungen in einem Duplex-UEbertragungsnetz
EP1130531A2 (fr) Méthode de transmission de données
DE19642515A1 (de) Verfahren zur Übertragung von Funksignalen
EP0802646A2 (fr) Méthode de multiplexage faisant preuve de robustesse contre les erreurs avec champ de contrÔle d'en-tête

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: A1

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

17P Request for examination filed

Effective date: 19880901

17Q First examination report despatched

Effective date: 19900911

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 3774364

Country of ref document: DE

Date of ref document: 19911212

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2026498

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: HELLA KG HUECK & CO.

Effective date: 19920702

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT

Owner name: SIEMENS AKTIENGESELLSCHAFT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19940810

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19940829

Year of fee payment: 8

EAL Se: european patent in force in sweden

Ref document number: 87111270.2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950805

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19950805

EUG Se: european patent has lapsed

Ref document number: 87111270.2

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20001204

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20010725

AK Designated contracting states

Kind code of ref document: B2

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

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010808

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010823

Year of fee payment: 15

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011022

Year of fee payment: 15

EN Fr: translation not filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

EN Fr: translation not filed

Free format text: BO 01/51 PAGES: 265, IL Y A LIEU DE SUPPRIMER: LA MENTION DE LA NON REMISE. LA REMISE EST PUBLIEE DANS LE PRESENT BOPI.

ET3 Fr: translation filed ** decision concerning opposition
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030301

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050804