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:
Jun. 24, 1986
Filed:
Aug. 23, 1983
Applicant:
Inventor:
Tatsuo Yamada, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307290 ; 307443 ; 307359 ; 307279 ; 307605 ;
Abstract
An input amplifier circuit, specifically, an input amplifier circuit for logic signals, in which noise signal components having a duration less than a predetermined duration are eliminated from the output signal of the amplifier. A delay circuit is added to the feedback loop of a Schmitt trigger amplifier circuit which has a delay time equal to the predetermined delay. The delay circuit effectively inhibits the output signal from changing state unless the input signal has a duration greater than the predetermined duration.