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Methods, apparatus and programs for generating and utilizing content signatures

  • US 8,023,773 B2
  • Filed: 12/20/2006
  • Issued: 09/20/2011
  • Est. Priority Date: 12/21/2000
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a first fingerprint of a media signal;

    querying a data repository, using a processor, to identify a plurality of records associated with the first fingerprint;

    receiving a second fingerprint of the media signal, wherein the second fingerprint comprises a more refined fingerprint relative to the first fingerprint; and

    selecting a record, based at least on the second fingerprint, out of the plurality of records.

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