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. 08, 2003
Yuki Narita, Mihama-ku, JP;
Tomoo Tsuda, Mihama-ku, JP;
Masahiro Konishi, Mihama-ku, JP;
Kawasaki Microelectronics, Inc., Chiba, JP;
Abstract
The invention provides a content addressable memory device having the capability of functioning as a content addressable memory device with a reduced memory capacity even when the device includes a large number of failed words in some memory blocks. To achieve the above object, the content addressable memory device according to the present invention includes a memory part including a plurality of memory blocks which can be controlled independently of each other, a failed memory block information memory for, when there is a failed memory block, storing address information associated with the failed memory block and outputting a signal indicating the failed memory block, and an encoder for, in accordance with the signal and an address input from the outside, outputting a memory block selection signal to the respective memory blocks to enable a memory block other than the failed memory block without enabling the failed memory block.