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Using embedded data with file sharing

  • US 7,756,892 B2
  • Filed: 09/11/2001
  • Issued: 07/13/2010
  • Est. Priority Date: 05/02/2000
  • Status: Active Grant
First Claim
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1. In a file sharing system, a method of controlling use of media files comprising:

  • embedding auxiliary data into a media signal file, including a time stamp;

    using a programmed computer to extract the auxiliary data from the media signal;

    reading the time stamp from the extracted auxiliary data to control use of the media signal file in a computing device in the file sharing system.

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