Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1996-02-02
1998-09-01
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
307 102, 307 106, 307 104, 180287, 701 36, 3404255, 340426, B60R 2510
Patent
active
058014551
ABSTRACT:
An apparatus and method for disarming an automobile alarm system uses the ignition switch of the automobile to create a sequential pulse access code. Toward this end, two commonly available electrical circuits in the vehicle's wiring that are switched on and of by the shifting of a vehicle's ignition switch among power-applying switch positions serve to supply a pulse code of sequential electric pulses to the alarm system to perform a selected function, including entering a valet mode or overriding and disarming the system without a remote control transmitter. Because the shifting of the ignition switch generates a two-wire detectable pulse code, previously-programmed pulse codes can be selected to perform different functions in addition to disarming the system, including using pulse codes to trigger entry of the system into a learning mode.
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Borch Michael J.
Chen Chau Ho
Karnig Edward G.
Borch Michael J.
Ganjian Peter
Karnig Edward G.
Shoop Jr. William M.
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