Method for operating a locking system for lockable objects

A key module (10) carried by the user of the vehicle has a pushbutton connecting the enclosed battery to a high frequency radio transmitter and antenna having a range of about 10 m. It also contains a transponder with a range of a few centimetres and an inductive loop for reception of a check signal...

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Bibliographische Detailangaben
Hauptverfasser:	HETTICH, GERHARD, DOERFLER, REINER, ROBITSCHKO, PETER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES THEREFOR ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CHECKING-DEVICES FIXED CONSTRUCTIONS GENERATING RANDOM NUMBERS HANDCUFFS KEYS LOCKS PERFORMING OPERATIONS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES SAFES TIME OR ATTENDANCE REGISTERS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR VOTING OR LOTTERY APPARATUS WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:	A key module (10) carried by the user of the vehicle has a pushbutton connecting the enclosed battery to a high frequency radio transmitter and antenna having a range of about 10 m. It also contains a transponder with a range of a few centimetres and an inductive loop for reception of a check signal (23) at e.g. 125 kHz returned by the transmitter (32) in a lock module within the vehicle. The encoded signal (21) from the key module is verified (33) and a control unit (34) performs the opening or locking operation.