EP 1051556 B1 20041201 - MOTOR VEHICLE LOCKING SYSTEM WITH OPEN-ENDED CODE AND IDENTIFICATION
Title (en)
MOTOR VEHICLE LOCKING SYSTEM WITH OPEN-ENDED CODE AND IDENTIFICATION
Title (de)
ROLLIERENDES CODE-VERRIEGELUNGSSYSTEM FÜR EIN KRAFTFAHRZEUG UND IDENTIFIKATION
Title (fr)
SYSTEME DE VERROUILLAGE POUR VEHICULE AUTOMOBILE A CODE EVOLUTIF ET IDENTIFICATION
Publication
Application
Priority
- EP 9900520 W 19990126
- FR 9800982 A 19980129
Abstract (en)
[origin: FR2774121A1] The vehicle key (30) contains a remote control module comprising a code transmitter (31) using typically infrared or low power radio and a separate key identification circuit (32). The code (Ci) is pseudo-randomly based on the number of times the key has been operated. In the automobile there is a code detector (10) which tracks the remote code and can operate the door locks. This detector connects through a data bus (B) to a key authentication device (20). When remote unlock is activated by a key user to unlock the vehicle, a security code is transmitted by the key. If the detector recognises the code then the doors are unblocked and vehicle functionality is enabled. If the code is not recognised, for instance when the evolving codes in the vehicle and the key become out of synchronisation, then the doors have to be manually unblocked and vehicle starting remains disabled. Under these circumstances, when the key is placed in the ignition switch the vehicle key authentication system communicates with the key identity circuit by means of some form of magnetic induction coupling. If the key is identified as valid, the code detect system resynchronises itself to the latest code received from the key, and vehicle functionality is enabled.
IPC 1-7
IPC 8 full level
G07C 9/00 (2006.01)
CPC (source: EP KR)
E05B 49/00 (2013.01 - KR); G07C 9/00182 (2013.01 - EP); G07C 2009/00214 (2013.01 - EP); G07C 2009/0023 (2013.01 - EP); G07C 2009/00246 (2013.01 - EP); G07C 2009/00769 (2013.01 - EP); G07C 2209/06 (2013.01 - EP)
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
FR 2774121 A1 19990730; FR 2774121 B1 20000407; DE 69922345 D1 20050105; DE 69922345 T2 20050512; EP 1051556 A1 20001115; EP 1051556 B1 20041201; ES 2234242 T3 20050616; KR 100591471 B1 20060620; KR 20010034480 A 20010425; WO 9939066 A1 19990805
DOCDB simple family (application)
FR 9800982 A 19980129; DE 69922345 T 19990126; EP 9900520 W 19990126; EP 99907432 A 19990126; ES 99907432 T 19990126; KR 20007008306 A 20000729