DC-offset transient response cancel system

Details DC-offset transient response cancel system DC-offset transient response cancel system

2006-09-19

2006-09-19

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C327S309000

Reexamination Certificate

active

07109778

ABSTRACT:
A high pass filter is disposed to an output part of a gain control amplifier. A gain control signal change detector detects a change of a gain control signal from the gain control amplifier. Upon detection of a change of the gain control signal, a counter and a clock generator generate a cancel pulse which has a certain width, and using the cancel pulse, a first switch cuts an AC signal which is fed to the gain control amplifier. Further, using the same cancel pulse, a second switch reduces the time constant of the high pass filter. Through this operation, a transient response of a DC offset is eliminated.

REFERENCES:
patent: 5926066 (1999-07-01), Sauer
patent: 6415003 (2002-07-01), Raghavan
patent: 2003/0142767 (2003-07-01), Ichihara
patent: 2003/0156668 (2003-08-01), Atkinson et al.
patent: 2003/0203727 (2003-10-01), Kluge et al.
patent: 2002319989 (2002-10-01), None
patent: 2003224488 (2003-08-01), None
European Search Report dated Feb. 2, 2005.

Affiliated with

Also associated with

Rating

DC-offset transient response cancel system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DC-offset transient response cancel system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC-offset transient response cancel system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3610428