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:
May. 22, 2012
Filed:
Sep. 25, 2006
Hongbo Wan, Guangdong, CN;
Hongbo Wan, Guangdong, CN;
NETAC Technology Co., Ltd., Guangdong, CN;
Abstract
A method for data management in a flash memory medium is provided in the present invention, The method comprises the following steps: dividing a plurality of blocks of the flash memory medium into two or more sections; generating a section-address-mapping table by scanning logic addresses in the blocks in each section; storing the section-address-mapping table into a backup block in each section; and performing an operation of writing/reading by reading the section-address-mapping table, storing the section-address-mapping table to a RAM, and performing a conversion between a physical address and a logic address based on the section-address-mapping table stored in the RAM. Since the section-address-mapping tables are stored in the backup block in respective sections, when an operation of writing/reading is performed and it is necessary to switch to a section-address-mapping table for a next section, data stored in the next section can be read out based on the section-address-mapping table stored in the backup block in the next section, without needing to scan each block in the next section for generating a new section-address-mapping table dynamically. Therefore, the method of the present invention can save the time for operation and thus achieve effective management on data in the flash memory medium.