发明名称 Method of providing identification, other digital data and multiple audio tracks in video systems
摘要 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.
申请公布号 US4855827(A) 申请公布日期 1989.08.08
申请号 US19870076036 申请日期 1987.07.21
申请人 WORLDS OF WONDER, INC. 发明人 BEST, ROBERT J.
分类号 G09B5/06;H04N5/92;H04N7/08;H04N9/802 主分类号 G09B5/06
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