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Data storage and retrieval system with improved data base structure

  • US 5,369,763 A
  • Filed: 05/26/1992
  • Issued: 11/29/1994
  • Est. Priority Date: 02/01/1989
  • Status: Expired due to Fees
First Claim
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1. A method of operating a computer system having memory for storing and retrieving information concerning a subject, said method comprising steps of:

  • (a) in the computer system memory, storing subject data concerning a plurality of subjects wherein said data includes descriptor phrases regarding various matters with which said subjects are concerned and wherein said data includes identifying information for identifying the subjects associated with said descriptor phrases;

    (b) assigning selected designation numbers to said descriptor phrases and storing said selected designation numbers in the computer system memory in association with the corresponding descriptor phrases and with the identifying information wherein said designation numbers correspond to a respective plurality of topics;

    (c) in the computer system memory, storing a plurality of topic headings with each heading being designated to include a specified range of designation numbers;

    (d) in the computer system, for each designation number assigned to a descriptor phrase, determining which of said topic heading ranges includes said designation number and storing that designation number and corresponding descriptor phrase in association with the associated topic heading;

    (e) searching the computer system memory for one of a descriptor phrase descriptive of a selected matter of interest, a range of designation numbers, and a designation number, and if a descriptor phrase is identified, determining the designation number thereof; and

    (f) using one of said range and designation number determined in step (e) to retrieve from the computer system memory the corresponding identifying information concerning the associated subject.

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