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Content-based segmentation scheme for data compression in storage and transmission including hierarchical segment representation

  • US 7,116,249 B2
  • Filed: 09/08/2005
  • Issued: 10/03/2006
  • Est. Priority Date: 10/30/2002
  • Status: Expired due to Term
First Claim
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1. A method for storing data, comprising:

  • receiving a file from a client at a server;

    segmenting the file into one or more segments;

    forming a list, comprising;

    determining whether each segment is present in a segment store, wherein a segment that is present in the segment store has an assigned reference label;

    for each segment present in the segment store, adding to the list the assigned reference label; and

    for each segment not present in the segment store, assigning a reference label to the segment, storing the segment and the reference label, and adding the reference label to the list; and

    storing an association between the file and the list.

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