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:
Mar. 06, 2007
Filed:
Jul. 28, 2005
Min-yeol Ha, Gyeonggi-do, KR;
Suk-soo Pyo, Gyeonggi-do, KR;
Hyun-taek Jung, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
The present invention provides a memory and memory control system wherein, except for one case noted below, the main memory gives priority to read or write operations over refresh operations. On the other hand, the cache memory give priority to the refresh operations over read or write operations. The exceptional case is when a memory read signal is received when the cache refresh is enabled and the data in the cache memory is valid. In this exceptional case, the refresh of the cache memory is delayed. During certain read operations the data in the particular memory block is also written to the cache and no write back from the cache is performed. This reduces the number of write back operations and it eliminates a delay due to the refresh operation.