Clamping system for clamping a video signal by using a...

Details Clamping system for clamping a video signal by using a... Clamping system for clamping a video signal by using a...

2007-06-05

2007-06-05

Hsia, Sherrie (Department: 2622)

Television

Image signal processing circuitry specific to television

Dc insertion

C348S572000

Reexamination Certificate

active

10919560

ABSTRACT:
A clamping system for clamping a video signal, wherein the clamping system uses a charge-pump unit in company with a digital clamping controller to clamp the potential of the video signal, prior to the video signal being input to a programmable gain amplifier and an A/D converter, so as to reach a desired level. The charge-pump unit provides two charge-pump circuits, wherein one charge-pump circuit supplies a strong burst to boost the potential of the video signal while the video signal is below a threshold value. Otherwise, the other charge-pump circuit supplies a weak burst to fine tune the potential of the video signal when the video signal has reached the threshold value.

REFERENCES:
patent: 6011822 (2000-01-01), Dreyer
patent: 6177843 (2001-01-01), Chou et al.
patent: 6323910 (2001-11-01), Clark, III

Affiliated with

Also associated with

Rating

Clamping system for clamping a video signal by using a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clamping system for clamping a video signal by using a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clamping system for clamping a video signal by using a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3831285