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:
Oct. 23, 2007
Filed:
Jul. 19, 2004
Tae-sun Chung, Seoul, KR;
Hyung-seok Park, Seoul, KR;
Myung-jin Jung, Seoul, KR;
Samsung Electronics Co. Ltd., Suwon, KR;
Abstract
A mapping algorithm for efficient access to a flash memory, wherein block state information that is changed through logical operations required by a processor is written in the flash memory according to a predetermined state transition algorithm and the changed information is referred to upon read/write operations. A mapping control apparatus for a flash memory according to the present invention includes a flash memory having regions divided on a block basis and containing block state information indicating the state of each block, each block including a predetermined number of sectors; and a processor for determining a sector on which a predetermined logical operation is to be performed based on the block state information and updating the block state information according to a predetermined state transition algorithm, when the logical operation is required for the flash memory.