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Inferencing production control computer system

  • US 5,615,309 A
  • Filed: 12/14/1994
  • Issued: 03/25/1997
  • Est. Priority Date: 11/13/1990
  • Status: Expired due to Fees
First Claim
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1. A computer system for implementing an inferencing process, the computer system comprising:

  • an instruction processing unit (IPU);

    content addressable memory (CAM) including;

    working memory (WM) having working memory elements (WME),a check list including rules each having left hand sides (LHS) data,an agenda, andmeans for storing in the WM a new WME output by an executed rule from the agenda;

    means for loading data into the CAM in response to the IPU;

    means for comparing the LHS data and the WMEs;

    satisfaction bits each associated with a rule'"'"'s LHS datum for indicating whether or not at least one of the WMEs match the rule'"'"'s LHS datum;

    the check list including rules each of whose associated satisfaction bits indicate a match between each of the rules'"'"' LHS data and at least one of the WMEs;

    a pattern register for holding LHS data from a rule in the check list to be compared concurrently with a plurality of the WMEs;

    the agenda including;

    rules from the check list each of whose LHS data eachmatched with a WME and are now scheduled to be executed; and

    a mask register for selecting only a portion of LHS data in the pattern register to be compared concurrently with the plurality of the WMEs.

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