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Selective document retrieval method and system

  • US 5,825,943 A
  • Filed: 09/29/1995
  • Issued: 10/20/1998
  • Est. Priority Date: 05/07/1993
  • Status: Expired due to Term
First Claim
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1. A method implemented on a digital computer for storing and selectively retrieving information contained in a set of documents originally located external to said computer, wherein said document set includes at least one page, said method comprising:

  • A. generating a bit-mapped image data set representative of information contained in the document set;

    B. storing the image data set in a first memory storage device associated with said computer;

    C. generating a text data set representative of a text portion of the information contained in the document set;

    D. storing the text data set in a second memory storage device associated with said computer;

    E. generating a text-image correspondence table including information representative of correlations between each phrase within the stored text data set and two-dimensional coordinates of a corresponding location within the stored image data set;

    F. identifying a search phrase, corresponding to user-specified search criteria, in the stored text data set;

    G. identifying two-dimensional coordinates corresponding to the search phrase from the text-image correspondence table; and

    H. generating a display of at least that image data, from within the stored image data set and by using said identified two-dimensional coordinates, corresponding to said search phrase.

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