Customized advertisement splicing in encrypted entertainment sources

  • US 7,912,217 B2
  • Filed: 03/20/2007
  • Issued: 03/22/2011
  • Est. Priority Date: 03/20/2007
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • providing at least one processor and using the at least one processor for;

    receiving gap information from an entertainment content source configured to provide an entertainment stream associated with a first contributing source of information and a first key indicator providing a source of the entertainment stream and a chronological order to render the entertainment stream,the entertainment stream being encrypted and having an associated first decryption key multiplexed into a key distribution system,the gap information identifying a gap in the entertainment stream within which an ad may be one of inserted or substituted;

    synchronizing a target ad from an advertisement stream to a time base corresponding to the gap;

    generating a second generating a second decryption key for the synchronized target ad, the target ad being associated with a second contributing source of information and a second key indicator;

    multiplexing the second key into the key distribution system;

    encrypting the synchronized target ad so that the target ad may be decrypted using the second key;

    rendering the entertainment stream and the target ad as a composite stream based on the chronological order, the target ad being rendered during the gap in the entertainment stream;

    decrypting the entertainment stream using the first decryption key selected from the key distribution system based on the first contributing source of information and the first key indicator; and

    ,decrypting the target ad using the second decryption key selected from the key distribution system based on the second contributing source information and the second key indicator.

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