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Control broadcast programme signal, control write and read systems, related production and broadcasting channel

  • US 20050015802A1
  • Filed: 11/15/2002
  • Published: 01/20/2005
  • Est. Priority Date: 11/16/2001
  • Status: Abandoned Application
First Claim
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1. A broadcasting program signal, comprising:

  • primary data for the reproduction of the passive main content of the program, wherein it comprises secondary data watermarked in the primary data not altering the reproduction of the main content of the primary data, and secondary data comprise the commands for triggering at least one application related to the main content of the primary data.

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