Vehicle communication system

Details Vehicle communication system Vehicle communication system

2007-04-17

2007-04-17

Appiah, Charles (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S575900, C455S041200, C455S456100, C455S456200, C455S550100

Reexamination Certificate

active

11016927

ABSTRACT:
A first transmitter outputs a request signal requesting a response to a mobile device toward an area including a driver's seat and its neighborhood, and a second transmitter outputs a request signal toward an area covering the entire vehicle. The mobile device transmits a response signal to a receiver if receiving the request signal transmitted from the first or second transmitter. The controller detects the position of the mobile device based on a communication result between the mobile device and the receiver in response to the request signals transmitted from the first and second transmitters.

REFERENCES:
patent: 4232390 (1980-11-01), McEvilly, Jr.
patent: 4533871 (1985-08-01), Boetzkes
patent: 6204813 (2001-03-01), Wadell et al.
patent: 2002/0105411 (2002-08-01), Maeda et al.
patent: 2003/0066702 (2003-04-01), Jung et al.
patent: 2003/0222758 (2003-12-01), Willats et al.
patent: 11-101033 (1999-04-01), None

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