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Receiver monitoring system with local encoding

  • US 5,850,249 A
  • Filed: 10/12/1995
  • Issued: 12/15/1998
  • Est. Priority Date: 10/12/1995
  • Status: Expired due to Term
First Claim
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1. An audience measurement system for metering tuning of a receiver which receives a plurality of program signals transmitted over a plurality of channels, wherein the receiver is located at an audience site within a dwelling, and wherein the plurality of program signals enter the dwelling at a service entrance and are supplied therefrom to the audience site, the audience measurement system comprising:

  • code inserting means for inserting a code in each of the program signals at a location which is intermediate the service entrance and the audience site, wherein the code includes a unique local code inserter ID and a code inserter time stamp;

    decoding means for decoding the unique local code inserter ID and the code inserter time stamp at the audience site; and

    ,collecting and storing means within the dwelling for collecting and storing the decoded unique local code inserter ID and code inserter time stamp and for communicating the decoded unique local code inserter ID and code inserter time stamp to a remote site.

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