High-frequency circuit apparatus and communication apparatus...

Details High-frequency circuit apparatus and communication apparatus... High-frequency circuit apparatus and communication apparatus...

2007-10-30

2009-08-04

Shah, Chirag G (Department: 2419)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000, C455S082000, C455S132000

Reexamination Certificate

active

07570622

ABSTRACT:
A high-frequency circuit has a duplexer and a filter. The duplexer performs wave separation of send and received signals as input thereto. The filter filters the input send signal. When the send and received signals of the first modulation method are input, the send signal and the received signal of the first modulation method are wave-separated and output by the duplexer. When the received signal of the first modulation method is input, the send signal and the received signal of the first modulation method are wave-separated and output by the duplexer, and the send signal of the second modulation method is filtered by the filter.

REFERENCES:
patent: 7142884 (2006-11-01), Hagn
patent: 2007/0190954 (2007-08-01), Murakami et al.
patent: 100 53 205 (2002-05-01), None
patent: 2003-204284 (2003-07-01), None
patent: 2004-186713 (2004-07-01), None
patent: 2004-222171 (2004-08-01), None
patent: 2005-210460 (2005-08-01), None
German Office Action Issued is German Patent Application No. 10-2006-029 984.1-35 dated on Jan. 21, 2008.

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