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:
Sep. 14, 2010
Filed:
Jul. 31, 2007
Katsumi Aoyagi, Tokyo, JP;
Tomohiro Ichikawa, Tokyo, JP;
Yoshinori Motoyama, Tokyo, JP;
Satoshi Hirano, Tokyo, JP;
Toshihisa Sanbommatsu, Tokyo, JP;
Toru Hayami, Tokyo, JP;
Tadashi Kamohara, Chiba, JP;
Kazutoshi Nagatani, Tokyo, JP;
Katsumi Aoyagi, Tokyo, JP;
Tomohiro Ichikawa, Tokyo, JP;
Yoshinori Motoyama, Tokyo, JP;
Satoshi Hirano, Tokyo, JP;
Toshihisa Sanbommatsu, Tokyo, JP;
Toru Hayami, Tokyo, JP;
Tadashi Kamohara, Chiba, JP;
Kazutoshi Nagatani, Tokyo, JP;
Sony Ericsson Mobile Communications Japan, Inc., Tokyo, JP;
Abstract
A memory management method for managing a non-volatile memory into which writing is performed in units of blocks includes the steps of assigning a plurality of blocks of the non-volatile memory to a management area formed of at least one block for storing management information, to a code area formed of a plurality of blocks into which program code is written, to a substitution area formed of a plurality of blocks for substituting for a defective block, and to an interference area formed of at least one block; storing at least correspondence information between the blocks of the substitution area and a defective block of a substitution target as management information within the management area; and using the block of the substitution area in place of the defective block on the basis of the correspondence information when the defective block is to be used.