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. 06, 2021
Filed:
Jan. 20, 2020
Silicon Motion, Inc., Jhubei, TW;
Bo-Yan Jhan, New Taipei, TW;
SILICON MOTION, INC., Jhubei, TW;
Abstract
A high-performance data storage device is disclosed, including a non-volatile memory, a controller, and a temporary storage. Sub mapping tables divided from a logical-to-physical address mapping table according to logical address groups are stored in mapping blocks allocated in the non-volatile memory. The controller limits the number of mapping blocks by garbage collection, and performs garbage collection on a source mapping block in sections. During each garbage collection section, the controller downloads valid sub mapping tables from the source mapping block to the temporary storage and then programs the valid sub mapping tables from the temporary storage to a destination mapping block. The temporary storage is repeatedly used to store valid sub mapping tables downloaded in the different garbage collection sections.