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:
Feb. 13, 1990
Filed:
Jan. 21, 1986
Tsutomu Tashiro, Edinburgh, GB;
Norihisa Komoda, Nijigaoka, Asao-ku, Kawasaki-shi, Kanagawa, JP;
Isao Tsushima, Nishi-tsuruma, Yamato-shi, Kanagawa, JP;
Kuniaki Matsumoto, Ooshima, Koto-ku, Tokyo, JP;
Kazuhiro Kawashima, Kohoku-ku, Yokohama-shi, Kanagawa, JP;
Riyoji Maekawa, Nagasawa, Tama-ku, Kawasaki-shi, Kanagawa, JP;
Other;
Abstract
A plurality of devices for processing IF-THEN JOIN operation of IF-THEN rules are provided to process the JOIN operation in a pipe-line manner. A JOIN operation processing facility has an input buffer for latching status data corresponding to one condition in a certain rule; an associative memory for latching status data corresponding to another condition; an output buffer for latching the result of a JOIN operation; and a data combining arrangement for replacing an item value from the two data by a meaningful value to generate one data so that a series of operations of picking up the data one by one from the input buffer, retrieving associatively the data of the associative memory by using the data picked up as a retrieval data and the common item as a retrieval key, and storing in the output buffer the combined result of the data picked up and the retrieval data.