Interactive video apparatus with audio and video branching
Patent 4786967 Issued on November 22, 1988. Estimated Expiration Date: 
August 20, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 20, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsAssigneeApplicationNo. 06/898320 filed on 08/20/1986US Classes:348/485, Plural (e.g., stereo or SAP)345/207, Light detection means (e.g., with photodetector)348/634, Picture blanking386/96, Audio signal715/858Automatic position adjustmentExaminersPrimary: Groody, James J.Assistant: Kostak, Victor R. Attorney, Agent or FirmInternational ClassesG09B 5/00 (20060101)G09B 5/06 (20060101) H04N 7/087 (20060101) H04N 7/04 (20060101) AbstractA system providing user interaction with a video display provided to a standard television set by a home video cassette unit employing a standard video cassette having a video signal recorded thereon, the video signal having four or more audio channels and digital commands encoded therein, the system including apparatus for generating and moving a cursor on the television screen and a digital processor responsive to commands encoded on the cassette, to the cursor position and/or to viewer selections to control the video displayed and the audio output by the television receiver.Other References
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