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:
Sep. 09, 1986
Filed:
Feb. 25, 1983
Kouichi Kitano, Tokyo, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A word-line discharging circuit in a static-type semiconductor memory device, including, for each word line, a first transistor for detecting the potential change of the word line, a time-constant circuit for delaying the output of the first transistor, and a second transistor for conducting a discharging current through the memory cells. The second transistor is switched in response to the output of the time-constant circuit, and includes, for all of the word lines, a common discharging current source. The word-line discharging circuit further includes means respectively provided between the word lines and the common discharging current source for respectively slowing the rate of change in the current flowing through the word lines, whereby double selection of the word lines is prevented.