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TELEVISION TRANSMISSION SYSTEM FOR TWO CLASSES OF INFORMATION

  • US 3,730,986 A
  • Filed: 04/05/1971
  • Issued: 05/01/1973
  • Est. Priority Date: 04/05/1971
  • Status: Expired due to Term
First Claim
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1. A television transmission system comprising a first source of at least fields of general viewer information wherein the general viewer information is interspersed with cuts, a second source of at least portions of fields of special viewer information, transmitter means for transmitting at least fields of general and special viewer information, switching means for normally connecting said first source to said transmitter means, means for sensing for the interspersed cuts, control means responsive to the sensing of a cut by said sensing means to cause said switching means to connect said second source to said transmitter means for a given period of time.

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