In-vehicle handsfree telephone system

Details In-vehicle handsfree telephone system In-vehicle handsfree telephone system

2005-09-26

2010-06-22

Appiah, Charles N (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S569200, C455S569200, C455S566000

Reexamination Certificate

active

07742792

ABSTRACT:
In an in-vehicle handsfree telephone system, an in-vehicle handsfree device is capable of transferring a voice signal to a portable terminal in a passenger compartment of a vehicle. An operating state detection unit detects an operating state of the vehicle. The handsfree device is responsive to a user operation and selectively operable in one of a handsfree mode in which talking on the portable terminal through the handsfree device is allowed by the transfer of the voice signal and a portable terminal stand-alone mode in which talking on the portable terminal in isolation is allowed. The handsfree device is configured to have a switching restriction function in which the handsfree device restricts switching between the handsfree mode and the portable terminal stand-alone mode in accordance with a detected operating state of the vehicle.

REFERENCES:
patent: 2002/0173347 (2002-11-01), Kinnunen
patent: 2003/0134660 (2003-07-01), Himmel et al.
patent: 2004/0063472 (2004-04-01), Shimizu et al.
patent: 2004/0121783 (2004-06-01), Chua et al.
patent: 2005/0009576 (2005-01-01), Van Bosch
patent: 1 156 645 (2001-11-01), None
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patent: 2 847 409 (2004-05-01), None
patent: A-62-287730 (1987-12-01), None
patent: A-H04-246925 (1992-09-01), None
patent: A 10-190557 (1998-07-01), None
patent: A 2003-174674 (2003-06-01), None
Oct. 6, 2009 Office Action issued in Japanese Patent Application No. 2004-298960.

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