Anti-vehicle-thief apparatus and code setting method of the appa

Details Anti-vehicle-thief apparatus and code setting method of the appa Anti-vehicle-thief apparatus and code setting method of the appa

1995-07-21

1999-12-28

Wu, Daniel J.

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

340428, 34082531, 34082532, 307 102, 307 105, B60R 2510

Patent

active

060087226

ABSTRACT:
An anti-vehicle-thief apparatus registers specific ID codes of a plurality of keys, and determines validity of a key, for example, in accordance with an operation of the key 1 including a transponder having one of the registered specific ID codes. The anti-vehicle-thief apparatus registers a code specific to the key and confirms an operation in which an ignition switch is turned on and off five times by using the key, where this operation is for changing the ID codes specific to the plurality of keys registered in EEPROMs. After the confirmation of the operation, ID codes specific to a plurality of new keys are successively registered, thereby preventing a third person from using the old keys, as well as making registration of the ID codes specific to the new keys easily.

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Communication Pursuant to article 115(2), dated May 12, 1997 (EPC application 95111837.1-1523/0695675).

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