Interactive TV system for mass media distribution

  • US 5,872,589 A
  • Filed: 03/18/1994
  • Issued: 02/16/1999
  • Est. Priority Date: 03/18/1994
  • Status: Expired due to Term
First Claim
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1. An interactive data system comprising:

  • at least one response unit where end user'"'"'s are located, the unit having normally received TV programs playing thereat, the programs presenting questions to the end user;

    audible beeps, corresponding to unique preselected codes, independent of program identification, being played by the TV program at the same time a corresponding question is posed;

    means located at the response unit for(a) indicating a response to a question;

    (b) picking up the audio beep;

    (c) generating a unique signal from both the picked up beep, indicative of the response to a particular question, and an identification of the response unit;

    (d) transmitting the generated signal to a local area repeater station; and

    means located at the repeater station for transmitting data, derived from the signal, to an audience response data center for processing of the data.

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