Signal processing circuit, signal processing method, and...

Details Signal processing circuit, signal processing method, and... Signal processing circuit, signal processing method, and...

2008-12-08

2010-11-02

Chang, Joseph (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular error voltage control

C331S00100A, C327S159000, C375S376000

Reexamination Certificate

active

07825739

ABSTRACT:
A signal processing circuit includes a feedback control loop that includes a loop filter and that detects the difference between a target value and a control value to control the difference so that the difference has a predetermined value. A closed loop formed in the feedback control loop is expressed by the delay of the entire closed loop serving as the feedback control loop, the loop filter, and simple integration of a final stage. The signal processing circuit includes a moving average calculating unit configured to calculate a moving average of outputs from the loop filter; a multiplying unit configured to multiply a value calculated in the loop filter by a certain gain; and an integrating unit provided upstream of the loop filter so that calculation results by the moving average calculating unit and the multiplication unit are concurrently fed back to an input into the loop filter.

REFERENCES:
patent: 5450452 (1995-09-01), Kakuishi et al.
patent: 5619543 (1997-04-01), Glass
patent: 5629649 (1997-05-01), Ujiie
patent: 5805024 (1998-09-01), Takashi et al.
patent: 6236343 (2001-05-01), Patapoutian
patent: 6847598 (2005-01-01), Ikai
patent: 6967606 (2005-11-01), Wiesbauer et al.
patent: 2007/0092040 (2007-04-01), Higashino
patent: 8-107352 (1996-04-01), None
patent: 2007-122774 (2007-05-01), None

Affiliated with

Also associated with

Rating

Signal processing circuit, signal processing method, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal processing circuit, signal processing method, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processing circuit, signal processing method, and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4207902