Television – Format – Including additional information
Patent
1993-11-24
1995-02-07
Groody, James J.
Television
Format
Including additional information
348479, 348 10, 348633, 348634, 348553, H04N 544, H04N 7093
Patent
active
053879422
ABSTRACT:
A method and system for controlling the reception of video signals in accordance with the program content of the signals is disclosed. In accordance with the invention, a digital program code is simultaneously transmitted along with the audio and video information in an unused portion of the composite video signal, such as the so-called back porch region of the blanking interval. Circuitry is interposed between the video signal and the display generating circuitry of a television receiver which extracts such program code and either passes or blocks the reception and display of the video signal in accordance with a comparison between the extracted program code and a stored program code. The stored program code indicates those types of programs which are desired to be blocked from reception and display by the television receiver, such as programs containing violence, nudity, or strong language. The system may be employed to either block entire programs or only those portions of programs having an objectionable program content.
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Groody James J.
Metjahic Safet
Parker J. Kevin
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