System and method for reducing second order distortion in...

Details System and method for reducing second order distortion in... System and method for reducing second order distortion in...

2005-05-10

2005-05-10

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S149000, C330S258000

Reexamination Certificate

active

06891435

ABSTRACT:
System and methods for reducing the effects of imbalance between input signals in a gain controlled differential amplifier are shown. Distortion in the amplifier is reduced by modulating the gain control input based upon detected differences between the signal levels of the differential input signal source.

REFERENCES:
patent: 5225790 (1993-07-01), Noguchi et al.
patent: 5444579 (1995-08-01), Klein et al.
patent: 5557238 (1996-09-01), Weiss
patent: 5587689 (1996-12-01), Bowers
patent: 6404285 (2002-06-01), Shkap
patent: 20030214356 (2003-11-01), Cowley et al.
International Search Report issued for PCT/US 03/39099, dated, Apr. 19, 2004.

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