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:
Aug. 11, 2009
Filed:
Dec. 07, 2007
Masami Kanasugi, Kawasaki, JP;
Koichi Kuroiwa, Kawasaki, JP;
Makoto Muranushi, Kawasaki, JP;
Fujitsu Microelectronics Limited, Tokyo, JP;
Abstract
A semiconductor memory that reduces the power consumption of a memory cell array without exercising control by a microprocessor. The semiconductor memory comprises a memory cell array, a switch for turning on/off power corresponding to row addresses of the memory cell array, an address control section for exercising sequence control on the basis of a write pointer (WP) generated at the time of a write signal being inputted for designating a row address to which data of a predetermined data stream is to be written and a read pointer (RP) generated at the time of a read signal being inputted for designating a row address from which the data is to be read out, and a switch signal output section for generating switch signals for controlling the switch on the basis of the WP and the RP.