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. 25, 2017
Filed:
Jul. 22, 2013
Narendhiran Chinnaanangur Ravimohan, Bangalore, IN;
Vithya Kannappan, Bangalore, IN;
Saranya Nedunchezhiyan, Bangalore, IN;
Sivaraj Velusamy, Bangalore, IN;
Narendhiran Chinnaanangur Ravimohan, Bangalore, IN;
Vithya Kannappan, Bangalore, IN;
Saranya Nedunchezhiyan, Bangalore, IN;
Sivaraj Velusamy, Bangalore, IN;
SanDisk Technologies LLC, Plano, TX (US);
Abstract
A memory system or flash card may include an algorithm for identifying and accounting for the rewrite frequency of data to be written to the card. The file system partition or file type of data may be used for monitoring rewrite frequency and predicting future rewrites. A learning algorithm that monitors rewrites may be implemented in firmware for accurate and dynamic identification of file types/partitions with the most likely rewrites. The identification of rewrites may be used to sort the data into groups (e.g. hot data=likely rewritten, and cold data=not likely to be rewritten). The hot data may stay in single level cell (SLC) update blocks longer, while the cold data can be moved to MLC blocks sooner.