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. 04, 2004
Filed:
Jun. 01, 2001
Amir Ban, Ramat Hasharon, IL;
M-Systems Flash Disk Pioneers LTD, Kfar Saba, IL;
Abstract
An improved method for affecting wear leveling in all units of a flash media, with a considerable decrease in usage of system resources. This is enabled by providing an algorithm that ensures that static areas do not remain static, and that the static data within them is guaranteed to move to other physical locations, such that wear leveling is achieved for all units. The method comprises: launching the wear leveling method once per some large number of write or erase operations done by the Flash data manager; selecting a unit in the media in a manner that successive selections will ultimately select all units; and moving the selected unit data to another free unit, and erasing the selected unit.