Mobile terminal device and antenna switch

Details Mobile terminal device and antenna switch Mobile terminal device and antenna switch

2005-10-21

2008-09-09

Le, Thanh C (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S553100, C455S277100

Reexamination Certificate

active

07424308

ABSTRACT:
A mobile terminal device having an antenna switch able to efficiently switch connection between reception signals from a plurality of antennas and signal processing circuits of the reception signals is provided. The device is able to communicate by a first data transmission system performing a diversity reception and a second data transmission system not performing the diversity reception. The device includes: a first antenna; a second antenna; an antenna attachable and detachable and detachable portion, to which a third antenna is attached and from which the third antenna is detached; a first wireless circuit for performing communication using the first antenna or the third antenna; a second wireless circuit for performing communication using the second antenna; a third wireless circuit for performing communication using the first antenna or the third antenna; and an antenna switch.

REFERENCES:
patent: 5809405 (1998-09-01), Yamaura
patent: 7251499 (2007-07-01), Ella et al.
patent: 2002/0081987 (2002-06-01), Yoshida et al.
patent: 2005/0119025 (2005-06-01), Mohindra et al.
patent: 2005/0266904 (2005-12-01), Kitaji et al.
patent: 08-293846 (1996-11-01), None
patent: 2002-344560 (2002-11-01), None
patent: 2002-369247 (2002-12-01), None
patent: 2004-032443 (2004-01-01), None
patent: 2003-0017215 (2003-03-01), None
patent: 10-0394931 (2003-08-01), None

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