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Watermark system

  • US 7,007,165 B1
  • Filed: 04/07/2000
  • Issued: 02/28/2006
  • Est. Priority Date: 05/02/1999
  • Status: Expired due to Term
First Claim
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1. A method for examining an electronic representation of an item for a watermark, the method comprising:

  • examining at least a first electronic representation of an item for a watermark in accordance with a first watermark definition;

    receiving a signal indicating that a second watermark definition is to be used for examining electronic representations; and

    examining at least a second electronic representation of an item for a watermark in accordance with the second watermark definition, and not examining the item for a watermark in accordance with the first watermark definition.

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