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. 14, 2000
Filed:
May. 20, 1997
Applicant:
Inventor:
Tetsuji Togami, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
327172 ; 327176 ; 327291 ; 327293 ; 327294 ;
Abstract
A pulse generating circuit which has a first and a second delay circuit selectively operable as a delay circuit or a resetting circuit. The delay circuits each has a discharge transistor and a charge transistor in order to fix the potential on its associated node rapidly when operating as a resetting circuit. Even when short pulses are continuously input as an input signal by accident, the circuitry surely outputs a single pulse transitioning at the same time as the first change in the input signal and having a desired duration since the last change in the input signal.