Global Patent Index - EP 0885502 A4

EP 0885502 A4 20001108 - AUTHENTICATION SYSTEM AND METHOD FOR A REMOTE KEYLESS ENTRY SYSTEM

Title (en)

AUTHENTICATION SYSTEM AND METHOD FOR A REMOTE KEYLESS ENTRY SYSTEM

Title (de)

AUTHENTIFIZIERUNGSSYSTEM UND VERFAHREN FÜR EIN FERNBEDIENBARES SCHLÜSSELLOSES EINGANGSSYSTEM

Title (fr)

SYSTEME ET PROCEDE D'AUTHENTIFICATION DESTINE A UN SYSTEME D'OUVERTURE A DISTANCE SAND CLE

Publication

EP 0885502 A4 20001108 (EN)

Application

EP 97912769 A 19971015

Priority

  • US 9718814 W 19971015
  • US 75853096 A 19961129

Abstract (en)

[origin: WO9826534A1] An authentication system and method changes (407) a symbolic value of a challenge count and encodes (411) it into an authentication symbol using an encoding process. Then, the symbolically-changed challenge count and the authentication symbol are transmitted (415). When received, the symbolically-changed challenge count is encoded (507) using the encoding process, and a receive-side derived authentication symbol is formed therefrom. Authentication is indicated (511) when the authentication symbol and the receive-side derived authentication symbol match.

IPC 1-7

H04L 9/00; E05B 49/00; H04L 9/32

IPC 8 full level

B60R 25/00 (2006.01); B60R 25/01 (2013.01); B60R 25/04 (2013.01); B60R 25/10 (2013.01); B60R 25/24 (2013.01); E05B 49/00 (2006.01); E05B 65/20 (2006.01); G07C 9/00 (2006.01); H04B 5/02 (2006.01); H04L 9/32 (2006.01)

CPC (source: EP)

G07C 9/00182 (2013.01); G07C 2009/0023 (2013.01); G07C 2009/00253 (2013.01); G07C 2009/00769 (2013.01); G07C 2209/06 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

WO 9826534 A1 19980618; EP 0885502 A1 19981223; EP 0885502 A4 20001108; JP 2000506947 A 20000606

DOCDB simple family (application)

US 9718814 W 19971015; EP 97912769 A 19971015; JP 52663798 A 19971015