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Database system with restricted keyword list and bi-directional keyword translation

  • US 5,956,711 A
  • Filed: 01/16/1997
  • Issued: 09/21/1999
  • Est. Priority Date: 01/16/1997
  • Status: Expired due to Term
First Claim
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1. A database system, further comprising:

  • a database;

    at least one data entry input for entering data records;

    a restricted keyword list, having a limited set of restricted keywords used as input for database searching;

    a synonym keyword list, having an expanded set of synonym keywords, each synonym keyword related to a corresponding restricted keyword;

    at least one keyword translator, further comprising;

    input means to accept the data record input by the data entry input;

    means to compare the data record with restricted keywords in the restricted keyword list and the synonym keyword list;

    means to select the restricted keyword when the data record contains the restricted keyword or its corresponding synonym keyword;

    means to output the restricted keyword selected by the keyword translator;

    a database controller, further comprising;

    means to input the restricted keyword output by the keyword translator;

    means to update the database with the restricted keyword selected by the keyword translator.

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