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. 04, 2005
Filed:
May. 19, 2003
Tomoo Tsuda, Mihama-ku, JP;
Tomoo Tsuda, Mihama-ku, JP;
Kawasaki Microelectronics, Inc., Chiba, JP;
Abstract
A content addressable memory device includes a plurality of memory banks. A faulty memory bank, if present, is excluded from the memory capacity thereof so that the content addressable memory device is used with the memory capacity thereof reduced. The content addressable memory device includes a plurality of banks, each bank including a plurality of words for storing data, an excluded bank information memory for storing information concerning an excluded bank, a mapping circuit for mapping an enable signal designating a bank to a bank other than the excluded bank, based on the excluded bank information, and a demapping circuit for mapping, to bank addresses including the address of the excluded bank, a hit signal representing that a word storing data corresponding to input search data is present in its own bank.