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.
Patent No.:
Date of Patent:
Dec. 10, 2024
Filed:
Aug. 03, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Hoyoun Kim, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A refresh control circuit includes: a counting bloom filter that includes N hash control logics, each of which performs a hash operation on input data and outputs an M-bit sequence and M counters, each of which corresponds to a bit of the M-bit sequence, and updates count values of corresponding counters indicated by values of the M-bit sequences obtained from the N hash logics by using an address of a row of the memory cells as the input data; a candidate row determiner that determines rows of the memory cells accessed in a predetermined period in which the count values of the corresponding counters are greater than a threshold value as candidate rows for a target refresh operation; and a target refresh controller that outputs target refresh signals for rows of the candidate rows adjacent to one or more target rows determined by the candidate row determiner.