Schlüsselortungseinrichtung für ein elektronisches Schlüsselsystem

A key locator includes a first and second antenna arranged in a vehicle. A first query unit transmits a challenge from the first antenna. A second query unit transmits a challenge from the second antenna to an electronic key responding to the challenge of the first query unit. A key locating unit de...

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Bibliographic Details
Main Author SAGUCHI, SHINYA
Format Patent
LanguageGerman
Published 26.05.2011
Subjects
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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Summary:A key locator includes a first and second antenna arranged in a vehicle. A first query unit transmits a challenge from the first antenna. A second query unit transmits a challenge from the second antenna to an electronic key responding to the challenge of the first query unit. A key locating unit determines the location of the electronic key in accordance with whether responses to the challenges from the first and second antennas are received from the electronic key.
Bibliography:Application Number: DE20101050741