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:
Oct. 20, 2020

Filed:

Jun. 06, 2018
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventors:

Soong Sun Shin, Gyeonggi-do, KR;

Duck Hoi Koo, Gyeonggi-do, KR;

Yong Tae Kim, Seoul, KR;

Cheon Ok Jeong, Gyeonggi-do, KR;

Assignee:

SK hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/00 (2006.01); G06F 12/02 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 3/061 (2013.01); G06F 3/0631 (2013.01); G06F 3/0656 (2013.01); G06F 3/0658 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01);
Abstract

A data storage device includes a nonvolatile memory device and a controller configured to control an operation of the nonvolatile memory device. The controller includes a volatile memory including a first index storage unit in which first index information for first data buffers are stored and a second index storage unit in which second index information for second data buffers are stored, a first central processing unit (CPU) configured to perform allocation and release of allocation of the first data buffers by accessing the first index storage unit of the volatile memory, and a second CPU configured to perform allocation and release of allocation of the second data buffers by accessing the second index storage unit of the volatile memory.


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