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:
Feb. 16, 2010
Filed:
Mar. 17, 2004
Tae-sun Chung, Seoul, KR;
Bum-soo Kim, Anyang-si, KR;
Yong-seok Kwon, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A flash memory access apparatus and method improves the overall performance of a flash memory system by minimizing the deterioration of performance of a flash memory due to repeated write operations through a minimized process of a write operation and the process of a recovery operation in consideration thereof and by allowing a stable recovery even though an error occurs. The flash memory access apparatus comprises a flash memory with regions divided on the basis of a unit that consists of predetermined blocks; and a flash memory controller. When a write operation is requested for a specific logical block number of the flash memory, the flash memory controller writes data and meta-information in a physical block corresponding to a logical block with the logical block number in the absence of a previous write operation for the logical block, but performs a write operation for writing the data and the meta-information allocated to the logical block in a new physical block without changing flash memory state information written in a previous physical block corresponding to the logical block in case of the presence of the previous write operation.