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:
Dec. 20, 2011
Filed:
Jul. 15, 2010
Naoyuki Ogura, Yokohama, JP;
Naoyuki Ogura, Yokohama, JP;
Terminus Technology Limited, , JP;
Abstract
An associative memoryfor primary searching operation of an associative memorysupplies a valid state to a primary match linecorresponding to storage data coincident with search datataking mask information into account, and supplies a value obtained from a result of a logical sum operation (an OR operation), with a valid state for the storage data as true, of all said coincident storage data to a counting meansas intermediate data. The counting meanssupplies a result of an operation to the intermediate datafor counting the number of bits in an invalid state for the storage data to an associative memoryfor secondary searching operations as secondary search data. Among secondary storage data obtained by carrying out said operation to said storage data, the associative memoryfor secondary searching operation supplies a result of carrying out the searching operation of the secondary search datato a secondary match line. The invalidation meanschanges a secondary match linecorresponding to a primary match linein an invalid state into an invalid state to supply to an external source as a match line