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:
Nov. 22, 2011
Filed:
Oct. 28, 2008
Shinsuke Sato, Chiba, JP;
Shinsuke Sato, Chiba, JP;
Kawasaki Microelectronics Inc., Chiba, JP;
Abstract
An access area is set within an address space of a dynamic random access memory by arranging two or more complete columns of blocks, in which blocks of memory cells are arranged within an entirety of a specified range of row addresses, along a direction of column addresses. Each of the blocks includes memory cells positioned at a same row address and a specified number of consecutive column addresses. The total number of blocks arranged in the access area is just capable of storing the number of words of the data to be stored. The two or more complete columns of blocks are successively accessed by successively accessing the blocks arranged in each of the columns of blocks. Thereby, a refresh operation of the dynamic random access memory is made unnecessary.