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. 14, 2023

Filed:

Aug. 27, 2021
Applicant:

Kioxia Corporation, Tokyo, JP;

Inventor:

Shuichi Takada, Yokohama Kanagawa, JP;

Assignee:

Kioxia Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/22 (2006.01); G11C 8/18 (2006.01); G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
G11C 7/222 (2013.01); G11C 7/1066 (2013.01); G11C 7/1093 (2013.01); G11C 8/18 (2013.01);
Abstract

According to one embodiment, a memory system includes a memory interface circuit. The memory interface circuit has delay circuits, a detection circuit, and a control circuit. One of the delay circuits applies a delay to a data signal. Another delay circuit generates, fora strobe signal, a first delay strobe signal, a second delay strobe signal, and a third delay strobe signal, each with different delay amounts. The detection circuit detects a drift in the timing of the first delay strobe signal with respect to the delayed data signal by using the delay data signal, the first delay strobe signal, the second delay strobe signal, and the third delay strobe signal. The control circuit adjusts the first delay amount, the second delay amount, and the third delay amount in a direction to compensate the drift.


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