Communications: electrical – Continuously variable indicating – With meter reading
Patent
1998-06-15
2000-06-13
Williams, Howard L.
Communications: electrical
Continuously variable indicating
With meter reading
34082534, 307 105, G06F 704
Patent
active
060754540
ABSTRACT:
A keyless entry device including a portable remote control for transmitting an operation signal in response to the reception of an interrogating signal and an onboard control module that is mounted on a vehicle. The onboard control module includes an anti-theft unit in which an operational state is selectively set, a transceiver for transmitting the interrogating signal and receiving the operation signal, a signal verifier for generating a reception acknowledge signal when the signal verifier determines that the received signal is legal, a proximity detector for generating a proximity signal when the portable remote control approaches the vehicle, a sensor unit for generating an actuation signal when the sensor unit senses a physical change in the vehicle, a door lock detector for generating a door-locked signal when the door is locked, a door controller for locking and unlocking the door of the vehicle, and a controller for releasing the anti-theft unit when the door-locked signal, the proximity signal and the reception acknowledge signal are concurrently issued with the anti-theft unit in the set state, and for unlocking the door of the vehicle when the reception acknowledge signal and the sensor actuation signal are concurrently issued with the anti-theft unit in the release state.
REFERENCES:
patent: 4509093 (1985-04-01), Stellberger
patent: 5412379 (1995-05-01), Waraksa et al.
Alps Electric Co. ,Ltd.
Jeanglaude Jean B.
Williams Howard L.
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