EP 2143080 B1 20130918 - METHOD FOR DETECTING AN IDENTIFICATION OBJECT IN A VEHICLE
Title (en)
METHOD FOR DETECTING AN IDENTIFICATION OBJECT IN A VEHICLE
Title (de)
VERFAHREN ZUM DETEKTIEREN EINES IDENTIFIKATIONSOBJEKTS IN EINEM FAHRZEUG
Title (fr)
PROCEDE DE DETECTION D'UN OBJET D'IDENTIFICATION DANS UN VEHICULE
Publication
Application
Priority
- EP 2007064428 W 20071221
- FR 0611343 A 20061222
Abstract (en)
[origin: WO2008077929A1] The invention relates to a method for detecting an identification object in an area (ZO) around an antenna device. The invention is characterised in that it comprises the following steps in which: a calibration signal (S_CAL) is emitted in the direction of the antenna device in order to determine a control power (PR); a functional signal (S_FONC) corresponding to the control power (PR) is emitted in the direction of the antenna device, such that the antenna device emits a pre-determined magnetic field; the magnetic field (Br) received by the identification object, corresponding to the emitted magnetic field, is measured and compared with a nominal magnetic field (B0); and, depending on the result of said comparison, it is determined if the identification object is located inside the area (ZO) around the antenna device. The invention is suitable for motor vehicles.
IPC 8 full level
CPC (source: EP US)
G07C 9/00309 (2013.01 - EP US); G07C 2009/00793 (2013.01 - EP US); G07C 2209/63 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2910751 A1 20080627; FR 2910751 B1 20090410; EP 2143080 A1 20100113; EP 2143080 B1 20130918; ES 2440254 T3 20140128; US 2009315682 A1 20091224; US 8773240 B2 20140708; WO 2008077929 A1 20080703
DOCDB simple family (application)
FR 0611343 A 20061222; EP 07858043 A 20071221; EP 2007064428 W 20071221; ES 07858043 T 20071221; US 48927809 A 20090622