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:
Feb. 16, 1982
Filed:
Nov. 16, 1979
Hirotoshi Tanaka, Hachioji, JP;
Yoshiki Kawajiri, Hachioji, JP;
Kouetsu Chiba, Hinodemachi, JP;
Ryoichi Hori, Hinodemachi, JP;
Kiyoo Itoh, Higashikurume, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a memory device, row and column decoders are connected through a common address signal line to an address buffer, and the row decoder is connected through a switch to the common address signal line. When the address buffer delivers a first address signal, the switch is turned on so that the first address signal is applied to both of the column and row decoders. The column decoder includes therein provision for disabling the column decoder when the first address signal is applied to column decoder. The column decoder therefore does not respond to the first address signal. Subsequently, when the address buffer delivers a second address signal, the switch is turned off so that the row decoder is not applied with the second address signal but the column decoder responds to the second address signal. Thus, the row and column address respond to the first and second address signals respectively.