Remote control system for a vehicle
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United States of America Patent
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-
Aug 17, 2004
Grant Date -
N/A
app pub date -
Jul 7, 2000
filing date -
Aug 9, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A remote control system for precisely identifying a distance from the vehicle to an entry key and favorably controlling a vehicle-mounted device such as a door corresponding to the distance. The system comprises a transmitter transmitting different types of response demand signals within a predetermined communication area outside the vehicle, a vehicle mounted receiver for receiving a response signal released from a portable transmitter/receiver in response to the reception of the response demand signal, a controller controlling the vehicle mounted device corresponding to the reception of the response signal by the vehicle mounted receiver. Locking and/or unlocking door(s) of the vehicle are controlled on the basis of whether or not the receiver receives the response signal to a response demand signal other than one having the largest communication area.
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