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:
Jul. 29, 2008
Filed:
May. 26, 2005
Kazutoshi Shimizume, Kanagawa, JP;
Mamoru Akita, Kanagawa, JP;
Masahiko Itoh, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
The disclosed semiconductor memory device exhibits improved error correction capability shorter read/write times, and removes or reduces the need for redundant memory The semiconductor device has a data input portion for receiving one page of data, dividing it to a plurality of code words, generating and adding check code (parity data) for each code word, successively forming main code words, and transferring the main code words to one of a plurality of memory banks. The semiconductor device also includes a data output portion for receiving one page worth of data, including main code words transferred from the data latch circuit, correcting errors in the data when the data includes fewer than a predetermined number of errors for each main code word, adding the error information to each read code word, and outputting the result.