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:
Nov. 21, 2023

Filed:

May. 03, 2022
Applicant:

Realtek Semiconductor Corporation, Hsinchu, TW;

Inventors:

Ger-Chih Chou, San Jose, CA (US);

Chih-Wei Chang, Hsinchu, TW;

Li-Jun Gu, Suzhou, CN;

Chun-Chi Yu, Hsinchu, TW;

Fu-Chin Tsai, Hsinchu, TW;

Assignee:
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

The present disclosure discloses a memory access interface device. A data processing circuit receives a data signal including 2M pieces of data from a memory device. A sampling clock generation circuit receives a data strobe signal from the memory device to generate a valid data strobe signal having P valid strobe pulses and further generate a sampling clock signal accordingly, in which P is larger than M. A sampling circuit samples the data signal according to the sampling clock signal to generate sampling results. A control circuit determines valid sampling results according to a time difference between the valid data strobe signal and the data signal and outputs valid data generated according to the valid sampling results as a read data signal to a memory access controller.


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