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:
Oct. 28, 2003
Filed:
Oct. 22, 2001
Yuichi Uzawa, Kawasaki, JP;
Yasuhiro Ooba, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An associative memory apparatus has such a structure as to reduce a load of an updating work and readily cope with an increase of the capacity. The associative memory apparatus outputs longest prefix match in only one searching operation, thereby shortening a processing time for the searching process. The apparatus comprises entry units, each of which includes a logical operating means outputting information about a bit length not masked in entry data when the entry data stored in its own entry unit coincides with bit data that is a key, and a search result outputting means outputting a search match information with respect to the search key only when the entry data stored in its own entry unit is entry data having the longest bit length not masked.