Method of providing identification, other digital data and multiple audio tracks in video systems
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United States of America Patent
Stats
-
Aug 8, 1989
Grant Date -
N/A
app pub date -
Jul 21, 1987
filing date -
Jul 21, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for imbedding digital data and multiple audio (analog) track information in a video signal in a manner compatible with ordinary broadcast TV and transparent to a conventional television receiver is disclosed. The method and apparatus may provide multiple independent audio tracks and a substantial level of interaction with a viewer utilizing special reception equipment, which equipment may be utilized to provide a fully interactive system from signal sources not required to be compatible with convention receivers. The method and apparatus includes the ability of imbedding both analog and digital signals in a video signal, and while advantageous for interactive TV systems, may be used for a multitude of purposes in various video systems.
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Family
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- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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