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Robust anchoring of annotations to content

  • US 20040205542A1
  • Filed: 09/07/2001
  • Published: 10/14/2004
  • Est. Priority Date: 09/07/2001
  • Status: Active Grant
First Claim
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1. A system comprising:

  • an annotation marking engine configured to anchor an annotation to a portion of content, the annotation marking engine including, a beginning point capture module to capture one or more features describing a beginning point of the portion, an ending point capture module to capture one or more features describing an ending point of the portion, and a region capture module to capture one or more features describing the portion, wherein the portion comprises a region between the beginning point and the ending point; and

    an annotation locating engine configured to receive the content after the content has been modified such that the portion has been altered, and further configured to identify a portion of the modified content to which the annotation is to be anchored.

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