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:
Mar. 22, 2022

Filed:

Nov. 26, 2019
Applicant:

SK Hynix Inc., Icheon, KR;

Inventors:

Byeong Gyu Park, Seongnam, KR;

Young Ick Cho, Seoul, KR;

Assignee:

SK hynix Inc., Icheon, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/0873 (2016.01); G06F 9/54 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0873 (2013.01); G06F 9/544 (2013.01); G06F 12/0246 (2013.01); G06F 2212/202 (2013.01);
Abstract

A controller may include a memory configured to store a map update list in which information of map segments whose mapping information is to be updated is registered The controller may also include an unmap module. The unmap module may, in response to receiving an unmap command, generate a list information bitmap indicating map segments which are already registered in the map update list, check, using the generate list information bitmap, whether one or more unmap target map segments corresponding to the unmap command overlap the map segments registered in the map update list, using the generate list information bitmap, and selectively register the one or more unmap target map segments into the map update list according to the check result.


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