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:
Jun. 03, 2025

Filed:

Jun. 08, 2023
Applicant:

Changxin Memory Technologies, Inc., Hefei, CN;

Inventors:

Xianlei Cao, Hefei, CN;

Xian Fan, Hefei, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/40 (2006.01); G11C 11/406 (2006.01); G11C 11/408 (2006.01);
U.S. Cl.
CPC ...
G11C 11/406 (2013.01); G11C 11/4085 (2013.01);
Abstract

A preprocessing module receives a word line activation command and a clock signal and outputs a word line address corresponding to a current word line activation command as a word line address signal when a count value reaches a preset value. An address processing module counts all received word line address signals and outputs a word line address signal with the largest number of occurrences as a row hammer address. A first processing unit generates first and second supplementary refresh address according to the row hammer address. A second processing unit generates a normal refresh address according to a refresh command. A refresh unit performs a refresh operation according to an acquired address signal. A control unit selects to output a refresh address or control the refresh unit to select to receive a refresh address.


Find Patent Forward Citations

Cao, Xianlei. (2025). Refresh circuit and memory (U.S. Patent No. 12322430). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12322430

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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