Filter circuit and radio communication apparatus

Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector

Reexamination Certificate

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Details

C455S287000, C455S339000, C327S555000, C327S556000, C327S557000

Reexamination Certificate

active

08005451

ABSTRACT:
There is provided with a filter circuit, including: an input terminal configured to input signals; a band stop filter configured to have a center frequency of input signals from the input terminal in a stop band and configured to reflect signals in the stop band that is included in the input signals and pass signals outside the stop band; a band pass filter configured to have a pass band including the stop band, and configured to pass signals in the pass band out of the signals having passed through the band stop filter; a synthesis circuit configured to synthesize the signals reflected on the band stop filter and the signals having passed through the band pass filter to obtain synthesis signals; and an output terminal configured to output the synthesis signals.

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U.S. Appl. No. 12/199,248, filed Aug. 27, 2008, Kayano.

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