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. 30, 1977
Filed:
Nov. 24, 1975
Applicant:
Inventor:
Kenzo Masuda, Tokorozawa, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307355 ; 307279 ; 328127 ; 328146 ;
Abstract
A voltage comparator circuit suitable for a semiconductor integrated circuit device comprises a pair of time constant circuits each of which includes a variable impedance, such as a depletion type MISFET, and a capacitor, the variable impedance being controlled by input voltages which are to be compared with one another and a flip-flop circuit which is stabilized to predetermined values on the basis of the comparison between the time variations of the outputs of the time constant circuits.