Television – Image signal processing circuitry specific to television – Motion dependent key signal generation or scene change...
Reexamination Certificate
2006-06-20
2006-06-20
An, Shawn S. (Department: 2613)
Television
Image signal processing circuitry specific to television
Motion dependent key signal generation or scene change...
C348S473000, C348S462000, C348S461000, C725S022000, C725S018000, C725S020000, C725S019000
Reexamination Certificate
active
07064796
ABSTRACT:
A method and system for extracting segments from a broadcast television signal uses a mean display attribute value of pixels of each successive frame of a video component of the signal to identify segment transitions. Elapsed times between the identified segment transitions are compared with expected durations of segments, in order to detect intervals that are likely to constitute segments. Groups of the detected intervals are subjected to tests to see if they are temporally arranged in an expected distribution typical of segments in broadcast signals. The mean display attribute values concurrent with each detected segment are then used to form a statistical profile for the segment. These statistical profiles may be used to identify re-broadcast segments. Further a stream of mean audio amplitudes is preferably used to supply further segment transitions, to improve segment detection, and to provide more statistical values.
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NOMAD (No More Advertising) website information sheets, Dec. 10, 2001.
Dupuis Jean-Charles
Pouliot Jean-François
Roy Yves
An Shawn S.
Eloda Inc.
Ogilvy Renault LLP
Roy Matthew M.
LandOfFree
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