The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 1994
Filed:
May. 13, 1992
Kenichi Kurosawa, Hitachi, JP;
Masaru Shimada, Hitachi, JP;
Hirokazu Hirayama, Yokohama, JP;
Tadaaki Bandoh, Ibaraki, JP;
Kiyomi Mori, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
High-speed inference method and system for a production system represented by an expert system. A knowledge base comprised of a rule and a fact possessing a plurality of attributes is converted into machine language instructions executable by a processor to execute inference. The machine language instruction of the fact has the function of transferring a value of the fact to a specified location and the machine language instruction of the rule has the function of performing matching decision by referring to the specified location. The number of pattern matching operations can be decreased and the interpretation overhead can be reduced to ensure high-speed inference.