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:
Mar. 06, 2018
Filed:
Mar. 29, 2016
Sandisk Technologies Inc., Plano, TX (US);
Nicholas James Thomas, Dundee, GB;
SanDisk Technologies LLC, Plano, TX (US);
Abstract
A system and method for compacting data in a non-volatile memory system that may reduce the need for control data updates is described. The method may include copying valid data from a source block to a destination block, and also writing new host data to the destination block, such that the offset position in the destination block of the copied data is the same as in the source block and fewer mapping table updates are needed for the copied data. The system may include a non-volatile memory system with a coarse granularity mapping table and a fine granularity mapping table where a controller in the non-volatile memory system is configured to only update the coarse granularity mapping table for compacted data written to a new block, but is configured to update both the fine and coarse granularity mapping tables for new host data written to the new block.
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