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:
Dec. 29, 2015
Filed:
May. 30, 2012
Chang-kai Cheng, Hsinchu, TW;
Yen-hung Lin, New Taipei, TW;
Chang-Kai Cheng, Hsinchu, TW;
Yen-Hung Lin, New Taipei, TW;
SILICON MOTION, INC., Jhubei, Hsinchu County, TW;
Abstract
A data storage includes a flash memory and a controller. The flash memory comprises a spare block pool and a data block pool, wherein the spare block pool comprises a plurality of spare blocks, and the data block pool comprises a plurality of data blocks, wherein the spare blocks with erase counts higher than a hot threshold are determined as hot spare blocks, and a hot spare block count indicates a total number of the hot spare blocks. The controller receives target data from the host, writes the target data to a current data block, determines whether a current programming page is the first page of the current data block, determines whether the hot spare block count is greater than zero when the current programming page is the first page, and sets data move information for a wear-leveling process when the hot spare block count is greater than zero.