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Broadcast system with associated data capabilities

  • US 5,491,838 A
  • Filed: 04/08/1993
  • Issued: 02/13/1996
  • Est. Priority Date: 04/08/1993
  • Status: Expired due to Fees
First Claim
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1. A system for simultaneously transmitting program material and data corresponding to the program material, comprising:

  • a plurality of program sources;

    a transmitter;

    a mixing board for routing said program material from a selected one of said program sources to said transmitter by selectively switching among said program sources and providing as an output signal said program material from said selected program source;

    program source detection means coupled to said mixing board for providing a program source signal corresponding to said selected program source;

    program material recognition means, coupled to said mixing board output signal, for comparing said program material with a database of known program material data and generating a program material identifying signal in response to the results of said comparison; and

    a data stream generator, coupled to said program recognition means, to said program source detection means and to said transmitter, for applying a data stream to said transmitter for transmission with the program material responsive to said program material identifying signal and said program source signal.

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