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.

Date of Patent:
Apr. 24, 2018

Filed:

Sep. 29, 2014
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Alex Radinski, Hadera, IL;

Tsafrir Kamelo, Rishon Lezion, IL;

Assignee:

APPLE INC., Cupertino, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/121 (2016.01); G06F 12/0868 (2016.01); G11C 11/56 (2006.01);
U.S. Cl.
CPC ...
G06F 12/121 (2013.01); G06F 12/0868 (2013.01); G06F 2212/1021 (2013.01); G06F 2212/1024 (2013.01); G06F 2212/1028 (2013.01); G06F 2212/214 (2013.01); G06F 2212/312 (2013.01); G11C 11/5642 (2013.01); G11C 2211/5641 (2013.01); Y02B 60/1225 (2013.01);
Abstract

A method includes reading memory pages from a non-volatile memory that holds at least first memory pages having a first bit significance and second memory pages having a second bit significance, different from the first bit significance. At least some of the read memory pages are cached in a cache memory. One or more of the cached memory pages are selected for eviction from the cache memory, in accordance with a selection criterion that gives eviction preference to the memory pages of the second bit significance over the memory pages of the first bit significance. The selected memory pages are evicted from the cache memory.


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