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:
Jul. 08, 2014
Filed:
Aug. 22, 2012
Chien-hua Chu, Hsinchu County, TW;
Chien-Hua Chu, Hsinchu County, TW;
Phison Electronics Corp., Miaoli, TW;
Abstract
A data protection method adapted to a rewritable non-volatile memory module having a plurality of physical blocks is provided. The data protection method includes following steps. If the rewritable non-volatile memory module is powered on, a power-off period from last time the rewritable non-volatile memory module is powered off till present is obtained. If the power-off period is longer than a time threshold, whether each physical block satisfies an update condition is determined according to a block information of the physical block. An update procedure is executed on the physical blocks that satisfy the update condition. The update procedure is configured to read data from a physical block and rewrite the data into one of the physical blocks. Thereby, data in the physical blocks is protected from being easily lost, and the lifespan of the rewritable non-volatile memory module is prolonged.