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:
Jun. 27, 2017
Filed:
Dec. 17, 2014
Sandisk Technologies Inc., Plano, TX (US);
Alan Welsh Sinclair, Falkirk, GB;
SanDisk Technologies LLC, Plano, TX (US);
Abstract
A non-volatile memory system may have a group of non-volatile memory cells having a plurality of predetermined portions, where each predetermined portion is associated with an open host write block of a different host data type than each other predetermined portion. A host data router directs received data from a host to an appropriate predetermined portion based on a determined data type. A maintenance data router, based on predetermined minimum capacity overprovisioning targets for each predetermined portion, operates to adjust an amount of overprovisioning of physical capacity among the plurality of predetermined portions to reduce write amplification and increase performance in predetermined portions having data with a higher probability of host update. The method may include selecting a particular predetermined portion and a particular block within the selected predetermined portion on which to perform a maintenance operation to achieve the desired capacity overprovisioning.