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Methods and devices employing content identifiers

  • US 8,489,598 B2
  • Filed: 02/06/2007
  • Issued: 07/16/2013
  • Est. Priority Date: 05/19/1999
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • discerning, using a processor, a plural-bit identifier from first content, wherein the first content comprises audio or video represented by content data values, wherein the discerning comprises applying a series of operations on the content data values to produce the plural-bit identifier, and wherein the plural-bit identifier is based on the content data values;

    determining if a data structure contains information corresponding to the discerned content identification data;

    based upon the determining, sending data related to the discerned content identification data to a first remote computer;

    based upon the sending of data to the first remote computer, receiving, at a portable device, from a second remote computer, information that corresponds to the discerned content identification data;

    based upon the sending of data to the first remote computer, receiving at the portable device, from the second remote computer, information identifying resources associated with second content, wherein the first content is distinct from the second content; and

    taking action, at the portable device, based on the received information.

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