Method and apparatus for attenuating or eliminating at least a portion of color burst modifications to a video signal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 19, 2012
Grant Date -
Jan 6, 2011
app pub date -
Aug 23, 2010
filing date -
May 9, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A copy protection color stripe process is defeated first by determining the location of the video lines including the color stripe process. Then some or all of the lines including the modified color bursts are modified so as to render the overall video signal recordable. The modification is accomplished in a number of ways, including phase shifting the color stripe burst into the correct phase, replacing, attenuating and or eliminating some of the color stripe bursts or at least a portion of particular color burst envelopes so that they are no longer effective, mixing the color stripe burst with color stripe signals of the correct phase so as to eliminate most or all of the phase error present or modifying the horizontal sync pulse signals immediately preceding the modified color bursts so that the modified color bursts are not detected by a VCR and hence have no effect.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully