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:
Apr. 12, 2016
Filed:
Mar. 29, 2011
Suhaib Alam Chishtie, Brampton, CA;
Puvikumar Sinnathamby, Toronto, CA;
Suhaib Alam Chishtie, Brampton, CA;
Puvikumar Sinnathamby, Toronto, CA;
BlackBerry Limited, Waterloo, Ontario, CA;
Abstract
A system and method for flash memory management is provided. In particular, the system and methods herein provide for management of flash memory, particularly NAND flash memory, in a manner that potentially reduces the number of write/erase cycles typically experienced by a data storage device. When unsecure data records are to be written to the flash memory, the new or updated unsecure data records are stored in the first available location in the flash memory (e.g. a block) providing a best fit for the data records. Where the data records are updates, the updated version is stored with an incremented version number to indicate that the updated version is the current version. Older versions of the data records are deleted during garbage collection. When secure data records are to be written to the flash memory, new or updated secure data records are stored in the location in the flash memory with the most available space. Any older versions of secure data records are immediately deleted.