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Media monitor

  • US 5,768,680 A
  • Filed: 05/05/1995
  • Issued: 06/16/1998
  • Est. Priority Date: 05/05/1995
  • Status: Expired due to Term
First Claim
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1. An electronic audio monitor and recording apparatus, said apparatus comprising:

  • self contained portable receiver means carried by an individual for detecting a coded audio signal transmitted at a frequency not detectable by the human ear by multiple television or radio broadcasts delivery at various locations;

    signal processor means for converting said audio signal into a digitized signal;

    means for appending a time stamp to said digitized signal;

    means for storing data corresponding to said digitized signal;

    a rechargeable power supplya means for coding signals for transmission in a television or radio broadcast comprising;

    a computer means having an EPROM and a real-time digital clock with pre-programmed identification signals;

    an audio tone generator operatively associated with said computer means for producing a series of tones for identifying a program source defined as a first tone for indicating transmittal, a second tone for indicating program type, a third tone for indicating program source, a forth tone for indicating validating said digitized signal, and a fifth tone for ending of transmittal and placing said receiver into a wait state mode in correspondence to said identification signals for placement in said program, said forth tone is compared to a algorithmic value to determine whether said third tone is a program source to be recorded; and

    a means for insertion of said series of tones into a television or radio signal.

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