Title:
DEVICE AND METHOD FOR AUTHORIZATION INTERROGATION IN A MOTOR VEHICLE
Document Type and Number:
WIPO Patent Application WO2000008280
Kind Code:
A3
Abstract:
The invention concerns a device and a method for authorization interrogation in a motor vehicle. A transponder (11) exchanges data with an antenna array (10, 12) during authorization interrogation. The antenna array (10, 12) is controlled by a current (IlnAl, IrlAl, IlnAr, IrnAr) intended for interrogations conducted outside the vehicle and a current (IlnI, IrnI) for interrogations conducted inside the vehicle.
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Inventors:
SCHMITZ STEPHAN (DE)
Application Number:
PCT/DE1999/002361
Publication Date:
May 11, 2000
Filing Date:
August 03, 1999
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
SCHMITZ STEPHAN (DE)
SCHMITZ STEPHAN (DE)
International Classes:
B60R25/00; B60R25/24; E05B49/00; G07C9/00; (IPC1-7): E05B49/00
Foreign References:
| DE19542441A1 | 1997-05-15 | |||
| DE3820248A1 | 1989-01-05 | |||
| DE19718764C1 | 1998-08-27 |
Other References:
MOTOKI HIRANO ET AL: "KEYLESS ENTRY SYSTEM WITH RADIO CARD TRANSPONDER", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,US,IEEE INC. NEW YORK, vol. 35, no. 2, pages 208-216, XP000096890, ISSN: 0278-0046
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