Receiver circuit, electronic instrument, and signal...

Details Receiver circuit, electronic instrument, and signal... Receiver circuit, electronic instrument, and signal...

2011-07-12

2011-07-12

Nguyen, Lee (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Distortion, noise, or other interference prevention,...

C455S067130, C455S296000, C342S357590

Reexamination Certificate

active

07979029

ABSTRACT:
In a portable phone, a signal received by a GPS antenna passes through a SAW filter and is amplified by an LNA. An addition section adds a cancellation signal generated by a cancellation signal generation section to the amplified signal to cancel noise superimposed on the received signal.

REFERENCES:
patent: 6510308 (2003-01-01), Thomas et al.
patent: 6791491 (2004-09-01), Talvitie
patent: 2004/0048576 (2004-03-01), Hildebrand et al.
patent: 2004/0203458 (2004-10-01), Nigra
patent: 2006/0055594 (2006-03-01), McConnell et al.
patent: 2006-145315 (2006-06-01), None
patent: WO-2005/050896 (2005-06-01), None

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