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. 05, 2006
Filed:
Apr. 12, 2005
Yun-sang Lee, Gyeonggi-do, KR;
Jung-bae Lee, Gyeonggi-do, KR;
Yun-Sang Lee, Gyeonggi-do, KR;
Jung-Bae Lee, Gyeonggi-do, KR;
Sasung Eelctronics Co., Ltd., Suwon-si, KR;
Abstract
Method and apparatus for use with multi-bank Synchronous Dynamic Random Access Memory (SDRAM) circuits, modules, and memory systems are disclosed. In one described embodiment, an SDRAM circuit receives a bank address to be used in an auto-refresh operation, and performs the auto-refresh operation on the specified bank and for a current refresh row. When all bank addresses have been supplied for the current row, the SDRAM circuit updates the current refresh row and repeats the process. This process can allow a memory controller to modify an auto-refresh bank sequence as necessary such that auto-refresh operations can proceed on some memory banks concurrently with reads and writes to other memory banks, allowing better utilization of the SDRAM circuit. Other embodiments are described and claimed.