Vehicle security system using an existing switch device, ignitio

Details Vehicle security system using an existing switch device, ignitio Vehicle security system using an existing switch device, ignitio

1996-01-02

1998-05-12

Elms, Richard T.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

180287, 307 105, B60R 2504

Patent

active

057510725

ABSTRACT:
A security system uses an ordinary switch, which may be an existing switch such as a parking light switch, to enter digits of a security code, with the beginning of a digit being indicated by turning on the ignition switch and the end of a digit being signified by turning off the ignition switch. Entry of the security code can be used to perform an emergency system disarm when the remote control transmitter is lost, to change the security code when the transmitter is in the possession of the owner, and to teach a new transmitter.

REFERENCES:
patent: 4209709 (1980-06-01), Betton
patent: 4447850 (1984-05-01), Asher
patent: 4533016 (1985-08-01), Betton
patent: 5079538 (1992-01-01), DeFino et al.
patent: 5307048 (1994-04-01), Sonders
patent: 5381128 (1995-01-01), Kaplan
patent: 5467070 (1995-11-01), Drori et al.
patent: 5479156 (1995-12-01), Jones

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