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Document management system

  • US 5,893,908 A
  • Filed: 11/21/1996
  • Issued: 04/13/1999
  • Est. Priority Date: 11/21/1996
  • Status: Expired due to Term
First Claim
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1. A computer-implemented method of operating an archival system for documents, each document separable into a plurality of segments, each segment being a document subset selected from the group consisting of picture, paragraph, imbedded graphic, sentence and phrase, said method comprising the steps of:

  • capturing an image of an unindexed document into the document archive system;

    separating said image of said unindexed document into said plurality of segments;

    forming descriptors of at least one of said plurality of segments of said unindexed document image;

    searching an index of descriptors for documents in a document database using said formed descriptors of said segment of said unindexed document image;

    identifying at least one document as a previous version of said unindexed document, said at least one document having more descriptors in common with said segment of said unindexed document than an unrelated document; and

    identifying said unindexed document as a later version of said at least one document in an index of said document database.

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