EP 1295148 A2 20030326 - METHOD FOR MEASURING DISTANCE BETWEEN TWO OBJECTS AND METHOD FOR CONTROLLING ACCESS TO AN OBJECT OR THE USE THEREOF, IN PARTICULAR ACCESS CONTROL AND DRIVING AUTHORISATION FOR A MOTOR VEHICLE
Title (en)
METHOD FOR MEASURING DISTANCE BETWEEN TWO OBJECTS AND METHOD FOR CONTROLLING ACCESS TO AN OBJECT OR THE USE THEREOF, IN PARTICULAR ACCESS CONTROL AND DRIVING AUTHORISATION FOR A MOTOR VEHICLE
Title (de)
ZUGANGSKONTROLLE UND FAHRBERECHTIGUNG MIT ABSTANDSMESSUNG FÜR EIN KRAFTFAHRZEUG
Title (fr)
PROCEDE DE MESURE DE DISTANCE ENTRE DEUX OBJETS ET PROCEDE DE COMMANDE DE L'ACCES A UN OBJET OU DE SON UTILISATION, EN PARTICULIER DISPOSITIF DE COMMANDE D'ACCES ET D'AUTORISATION DE CONDUITE POUR UN VEHICULE AUTOMOBILE
Publication
Application
Priority
- EP 01956477 A 20010615
- EP 0106784 W 20010615
- EP 00113600 A 20000627
Abstract (en)
[origin: WO0201247A2] A bi-directional dialogue is carried out between a portable code emitter (15) and a base station (1) for access to a motor vehicle. Both signals are correlated with each other and the dialogue repeated at an altered carrier frequency. The distance of the code emitter (15) from the base station (11) is determined from the difference in two phase difference measurements between the sent and received signal in one station (11 or 15). Access to, or use of the motor vehicle (10) is only permitted when the code emitter (15) is within a certain distance from the motor vehicle (10).
IPC 1-7
IPC 8 full level
B60R 25/00 (2006.01); B60R 25/20 (2013.01); B60R 25/24 (2013.01); E05B 49/00 (2006.01); G01S 7/40 (2006.01); G01S 13/84 (2006.01); G07C 9/00 (2006.01)
CPC (source: EP US)
B60R 25/20 (2013.01 - EP US); B60R 25/245 (2013.01 - EP US); G01S 7/40 (2013.01 - EP US); G01S 7/4052 (2013.01 - EP US); G01S 7/406 (2021.05 - EP); G01S 13/84 (2013.01 - EP US); G07C 9/00309 (2013.01 - EP US); G01S 7/406 (2021.05 - US); G07C 2009/00555 (2013.01 - EP US); G07C 2009/00793 (2013.01 - EP US); G07C 2209/61 (2013.01 - EP US)
Citation (search report)
See references of WO 0201247A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0201247 A2 20020103; WO 0201247 A3 20020328; EP 1295148 A2 20030326; JP 2004502177 A 20040122; US 2003090365 A1 20030515; US 7061369 B2 20060613
DOCDB simple family (application)
EP 0106784 W 20010615; EP 01956477 A 20010615; JP 2002506128 A 20010615; US 32431102 A 20021220