Circuit for correcting signal distortions

Details Circuit for correcting signal distortions Circuit for correcting signal distortions

2011-07-26

2011-07-26

Mercedes, Dismery E (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

C360S025000, C360S065000, C360S067000

Reexamination Certificate

active

07986479

ABSTRACT:
A corrector circuit for correcting second harmonic distortions is provided. The corrector circuit includes a transconductance circuit having an input transconductance with a transresistance load for receiving a distorted voltage signal having a second harmonic component. The transconductance circuit is adapted to generate a corrected voltage signal having the second harmonic component that is reduced from the distorted voltage signal as a function of the input transconductance. The corrector circuit further includes biasing means for providing a biasing current to the transconductance circuit (with the input transconductance that depends on the biasing current). The biasing means includes means for providing a fixed component of the biasing current, means for providing a variable component of the biasing current (being a function of the distorted voltage signal according to a proportionality coefficient) and means for programming the proportionality coefficient.

REFERENCES:
patent: 4459554 (1984-07-01), Mattisson
patent: 4794342 (1988-12-01), Kimura
patent: 5343163 (1994-08-01), Linder et al.
patent: 5479137 (1995-12-01), Harford
patent: 5744993 (1998-04-01), Sonntag
patent: 6040732 (2000-03-01), Brokaw
patent: 6043943 (2000-03-01), Rezzi et al.
patent: 6157510 (2000-12-01), Schreck et al.
patent: 6400518 (2002-06-01), Bhaumik et al.
patent: 6529340 (2003-03-01), Gowda et al.
patent: 6633447 (2003-10-01), Franck et al.
patent: 7038501 (2006-05-01), Lee et al.
patent: 7161752 (2007-01-01), Cheng
patent: 7339760 (2008-03-01), Gleason et al.
patent: 2002/0053935 (2002-05-01), Katakura et al.
patent: 2002/0176197 (2002-11-01), Franck et al.

Affiliated with

Also associated with

Rating

Circuit for correcting signal distortions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for correcting signal distortions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for correcting signal distortions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2657027