Apparatus and method for controlling black stretch of video...

Television – Cathode-ray tube display automatic black level bias control

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C348S691000, C348S678000

Reexamination Certificate

active

06952235

ABSTRACT:
An apparatus and method for adaptively varying a black stretch control range and a gain according to a mean level of a video signal to control black stretch of the video signal. According to the apparatus and method, the slope and range of black stretch are varied depending on the mean of the input video signal, so black stretch compensation can be adaptively performed depending on the brightness of a screen. Particularly, black stretch compensation can be effectively performed on a dark screen.

REFERENCES:
patent: 5257108 (1993-10-01), Muraoka
patent: 5422680 (1995-06-01), Lagoni et al.
patent: 5515113 (1996-05-01), Takeshima
patent: 5548341 (1996-08-01), Klink et al.
patent: 6600519 (2003-07-01), Hwang
patent: 2001-0067348 (2001-07-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for controlling black stretch of video... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for controlling black stretch of video..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling black stretch of video... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3442419

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.