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:
Sep. 19, 2017

Filed:

Jan. 27, 2016
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Knut S. Grimsrud, Forest Grove, OR (US);

Jawad B. Khan, Cornelius, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
G06F 11/108 (2013.01); G06F 11/1044 (2013.01); G06F 11/1048 (2013.01); G06F 11/1064 (2013.01); G06F 11/1068 (2013.01); G06F 11/1076 (2013.01); G06F 2211/109 (2013.01); G06F 2211/1009 (2013.01);
Abstract

A paging scheme for a Solid State Drive (SSD) error correction mechanism that exchanges portions of a parity component, such as a page, between SRAM and less expensive DRAM, which stores the remainder of a context of pages. A parity operation applies an XOR function to corresponding memory positions in the pages of the context. Dedicated error correction (parity) SRAM need only enough memory for portions of memory, typically a cache line of a page, upon which the parity operation (XOR) is operating. The remaining portions in the context are swapped, or paged out, by cache logic such that the entire context is iteratively processed (XORed) by the parity operation.


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