Amplifiers – Hum or noise or distortion bucking introduced into signal...
Reexamination Certificate
2010-04-20
2011-12-20
Choe, Henry (Department: 2817)
Amplifiers
Hum or noise or distortion bucking introduced into signal...
C330S136000
Reexamination Certificate
active
08081029
ABSTRACT:
There is provided a distortion compensation apparatus for compensating distortion of an output of a power amplifier included in a radio transmitter. The distortion compensation apparatus includes a difference value calculator to calculate a difference value between a reference signal and a feedback signal, where the reference signal is branched from an input signal to the power amplifier and the feedback signal is branched from an output from the power amplifier; an integrator to accumulate the difference value; and a failure determiner to determine based on the accumulated difference value whether or not a failure has occurred or not.
REFERENCES:
patent: 5742201 (1998-04-01), Eisenberg et al.
patent: 6252455 (2001-06-01), Kurby et al.
patent: 2006/0215783 (2006-09-01), Shako et al.
patent: 2008/0068191 (2008-03-01), Maeda et al.
patent: 2009/0027119 (2009-01-01), Williams et al.
patent: 1 511 181 (2005-03-01), None
patent: 2006-270246 (2006-10-01), None
patent: 2006-279780 (2006-10-01), None
patent: 2008-78702 (2008-04-01), None
patent: 03/103166 (2003-12-01), None
Ohba Takeshi
Shako Hideharu
Choe Henry
Fujitsu Limited
Katten Muchin & Rosenman LLP
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