Interactive video distribution systems – Operator interface – To facilitate tuning or selection of video signal
Reexamination Certificate
2000-09-20
2008-10-21
Lonsberry, Hunter B. (Department: 2623)
Interactive video distribution systems
Operator interface
To facilitate tuning or selection of video signal
C725S009000, C725S014000, C725S044000
Reexamination Certificate
active
07441260
ABSTRACT:
A television program recommender is disclosed that automatically identifies changes in viewing preferences. Once changing viewing preferences are identified, the disclosed television programming recommender can (i) adapt the generated television program recommendations to such changes in viewing preferences, or (ii) more efficiently manage the storage of the viewing history. For cyclical or periodic changes in viewing preferences, the television programming recommender generates television program recommendations using a sub-set of the viewing history from a corresponding earlier time period. Likewise, for true or permanent changes in viewing preferences, the television programming recommender optionally generates television program recommendations using the most recent sub-set of the viewing history, which most likely reflects the current viewing preferences. In a further variation, program recommendations can be generated using a combination, such as the union or intersection, of recommendations based on viewing histories from two different periods of time. The television programming recommender can confirm that viewing preferences have not changed significantly over time, and thereafter delete portions of the viewing history without loss of any performance in the generated recommendations.
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Ehrmantraut et al.: “The Personal Electronic Program Guide—Towards The Pre-Selection Of Individual TV Programs,” Proceedings Of The Inernational Conference On Information And Knowledge Management CIKM, ACM, New York, NY, US, Dec. 11, 1996, pp. 243-250.
Koninklijke Philips Electronics , N.V.
Lonsberry Hunter B.
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