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Detecting copyright violation via streamed extraction and signature analysis in a method, system and program

  • US 7,363,277 B1
  • Filed: 03/27/2000
  • Issued: 04/22/2008
  • Est. Priority Date: 03/27/2000
  • Status: Expired due to Fees
First Claim
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1. A method for detecting copyright violation, said method comprising:

  • receiving a selectable data stream of suspected copyright infringing material;

    using a linear shift generator to generate a first electronic signature for said data stream of said suspected copyright infringing material;

    using a linear shift generator to generate a second electronic signature for an original copyright material;

    comparing said first electronic signature with said second electronic signature, wherein a match of said first electronic signature with said second electronic signature indicates a likelihood that said suspected copyright infringing material and said original copyright material are the same;

    parsing said data stream of suspected copyright infringing material into suspected copyright infringing material data segments;

    generating a suspected copyright infringing material data segment electronic signature for each said suspected copyright infringing material data segment;

    parsing said original copyright material into original copyright material data segments;

    generating an original copyright material data segment electronic signature for each said original copyright material data segment;

    determining that at least one of said suspected copyright infringing material data segment electronic signatures matches at least one of said original copyright material data segment electronic signatures; and

    visually examining said suspected copyright infringing material data segment having said suspected copyright infringing material data segment electronic signature matching said original copyright material data segment electronic signature.

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