Mobile communication device and high-frequency composite...

Details Mobile communication device and high-frequency composite... Mobile communication device and high-frequency composite...

2005-08-09

2005-08-09

Chin, Vivian (Department: 2682)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

Reexamination Certificate

active

06928298

ABSTRACT:
A mobile communication device, preferably in the form of a dual-band cellular phone, includes two communications systems supporting different frequency bands, such as DCS in the 1.8 GHz band and GSM in the 900 MHz band. The mobile communication device includes an antenna, a high-frequency composite unit, DCS and GSM transmitters, and DCS and GSM receivers. The high-frequency composite unit contains a diplexer, DCS and GSM high-frequency switches, DCS and GSM high-frequency filters or notch filters, and a directional coupler.

REFERENCES:
patent: 5692290 (1997-12-01), Mamada et al.
patent: 5936504 (1999-08-01), Hatakenaka
patent: 5973568 (1999-10-01), Shapiro et al.
patent: 6076253 (2000-06-01), Takayama et al.
patent: 6154664 (2000-11-01), Chorey et al.
patent: 6215988 (2001-04-01), Matero
patent: 6216012 (2001-04-01), Jensen
patent: 6332071 (2001-12-01), Brandt
patent: 6400963 (2002-06-01), Glockler et al.
patent: 6633748 (2003-10-01), Watanabe et al.
patent: 0 893 887 (1999-01-01), None
patent: 0 921 642 (1999-06-01), None
patent: 0 933 880 (1999-08-01), None
patent: 2 333 669 (1999-07-01), None
patent: 10-303761 (1998-11-01), None
patent: 2000-49651 (2000-02-01), None
patent: 2002-124427 (2002-04-01), None
patent: 2002-252132 (2002-09-01), None

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