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. 18, 1986
Filed:
Oct. 19, 1983
Applicant:
Inventors:
Yoshihiro Iwamoto, Kawasaki, JP;
Tetsuya Iida, Yokohama, JP;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307290 ; 307242 ; 307279 ; 307360 ; 307451 ; 307579 ;
Abstract
In the Schmitt trigger circuit, a common input signal is supplied to first and second wave-shaping circuits, which have different threshold voltages and which provide different output wave-shaped signals. These wave-shaped signals are alternately selected by a selection circuit to provide the composite Schmitt trigger output signal. When the logic level of the output signal of the selected wave-shaping circuit is inverted due to a change in the input signal to that selected wave-shaping circuit, the output of the other wave-shaping circuit is selected by the selection circuit to provide the Schmitt trigger output signal.