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:
Jan. 26, 1993
Filed:
Oct. 04, 1989
Toshiyuki Tamura, Itami, JP;
Masaki Fujita, Itami, JP;
Shinji Komori, Itami, JP;
Hisakazu Sato, Itami, JP;
Hidehiro Takata, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A data retrieving apparatus having an address generator for selecting partly at least one of bit strings of the identification data and generating a hashed address by a reversible operation thereof when a packet having an operand data and a plurality of identification data is inputted, a hash memory for being accessed by the hashed address, a match detector for comparing the identification data of the stored packet with the identification data of the inputted packet and judging match/mismatch thereof when a valid packet is already stored in the hashed address generated from the inputted packet, an associative memory unit for storing the identification data of the inputted packet as a retrieval data when the match detector judges to be mismatch, and judging match/mismatch of the identification data already stored with the identification data of the inputted packet when a packet is inputted, and an output selector for selecting an output from the hash memory or the associative memory unit in response to the result of judgement of said associative memory unit.