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Two-way broadcasting and receiving system with time limit and/or limit data

  • US 5,682,599 A
  • Filed: 12/20/1994
  • Issued: 10/28/1997
  • Est. Priority Date: 12/24/1993
  • Status: Expired due to Term
First Claim
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1. In a two-way broadcasting method wherein information of a reply to a question from a broadcasting side is transmitted from a reception side to the broadcasting side by way of a telephone line, the improvement wherein:

  • each receiving apparatus on the reception side has individual identification information;

    the broadcasting side broadcasts information regarding a reply destination and telephone call origination limiting information for limiting transmission of the information of a reply in a multiplexed condition with a broadcasting signal from the broadcasting side; and

    on the reception side, transmission of the information of a reply to the reply destination is inhibited when the identification information peculiar to a receiving apparatus on the reception side satisfies a condition provided by the telephone call origination limiting information for inhibiting a telephone call origination of a reply to the reply destination, wherein sub broadcasting information relating to a program such as data for accessing the two-way broadcast or data for reservation of the program is constructed using a DTMF signal within an audio signal band and is broadcast in a multiplexed condition with a main broadcasting audio signal.

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