Methods and apparatus for recording programs prior to or beyond a preset recording time period
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 3, 2004
Grant Date -
N/A
app pub date -
Feb 7, 2000
filing date -
Feb 7, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video signal is processed to generate one or more signatures associated with a broadcast program to be recorded by a recording device. The signatures are then processed to determine an actual start time and end time of the desired broadcast program, such that the program can be properly recorded despite delays or other changes in a pre-scheduled broadcast time of the program. One or more of the extracted signatures may be based at least in part on, e.g., a keyframe similarity measure, a histogram, one or more detected commercials, a transcript, a program logo or other detected object, detected text, and a sign-on or sign-off of the desired program. Other types of signatures can also be used.
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