Television – Two-way video and voice communication – User positioning
Patent
1993-08-06
1996-01-02
Harvey, David E.
Television
Two-way video and voice communication
User positioning
348461, 348552, 395600, 358335, H04N 700
Patent
active
054812968
ABSTRACT:
A television presentation and editing system uses closed captioning text to locate items of interest. A closed captioning decoder extracts a closed captioning digital text stream from a television signal. A viewer specifies one or more keywords to be used as search parameters. A digital processor executing a control program scans the closed captioning digital text stream for words or phrases matching the search parameters. The corresponding segment of the television broadcast may then be displayed, edited or saved. In one mode of operation, the television presentation system may be used to scan one or more television channels unattended, and save items which may be of interest to the viewer. In another mode of operation, the system may be used to assist editing previously stored video by quickly locating segments of interest.
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Little et al. "A Digital On-Demand Video Service Supporting Content-Based Queries" Proceedings of the ACM, Multimedia '93, Anaheim, Calif. Aug. 1, 1993.
Television Captioning for the Deaf Signal and Display Specifications Report No. E-7709-C by John Lentz et al, Revised May 1980.
Cragun Brian J.
Day Paul R.
Harvey David E.
International Business Machines - Corporation
Truelson Roy W.
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