06505157 is referenced by 25 patents and cites 3 patents.

Apparatus generates data in processor usable form from natural language input data units in different unit categories. Input data categorized into categories generates data units having unit identification data and corresponding unit category data for input to a cascaded plurality of matching processing stages. Each matching processing stage of this cascade except the first uses any unmatched unit category data and group category data from previous matching processing stages in place of matched category data to match the unit and/or group category data with at least one predetermined pattern of unit and/or group category data. New group category data is output for any unit and/or group category matching each predetermined pattern of unit and/or group category data. At least one of the matching processing stages outputs unit data corresponding to matched unit category data as a plurality of variables. At least one of these variables is indexed by another of the variables.

Title
Apparatus and method for generating processor usable data from natural language input data
Application Number
9/511385
Publication Number
6505157 (B1)
Application Date
February 23, 2000
Publication Date
January 7, 2003
Inventor
David Elworthy
Cambridge
US
Agent
Fitzpatrick Cella Harper & Scinto
US
Assignee
Canon Kabushiki Kaisha
US
IPC
G10L 15/18
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