Amplifiers – Hum or noise or distortion bucking introduced into signal...
Reexamination Certificate
2007-05-30
2008-11-25
Nguyen, Patricia (Department: 2817)
Amplifiers
Hum or noise or distortion bucking introduced into signal...
C330S107000, C330S151000, C375S296000
Reexamination Certificate
active
07456688
ABSTRACT:
To cancel a reflected wave reflected from a connecting portion (22) and leaking into a feedback signal when a non-matched component is connected, the reflected wave is extracted by a circulator (30) and its phase and amplitude are adjusted by a vector adjusting circuit (32), and then the thus adjusted reflected wave is vector-summed with the feedback signal in a vector sum circuit (34).
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Supplementary European Search Report Communication dated Jun. 4, 2008 Application No. 04822513.0 - 1233; PCT/JP2004017799.
Maeda Hiroaki
Okazaki Yousuke
Ono Takashi
Seino Yasushi
Fujitsu Limited
Hanify & King P.C.
Nguyen Patricia
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