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. 30, 1987
Filed:
Jul. 28, 1986
Applicant:
Inventors:
Robert A Blauschild, Los Altos, CA (US);
Edmond Toy, Sunnyvale, CA (US);
Assignee:
Signetics Corporation, Sunnyvale, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307350 ; 307290 ; 307359 ; 307362 ;
Abstract
A circuit switches with a hysteresis defined by separately controllable thresholds which can be made largely independent of temperature and fabrication conditions. The circuit contains a pair of differential portions (21 and 22) and an arithmetic component (24). The hysteresis is introduced into the circuit by using positive feedback to control the position of a switch (23) in such a manner as to change the transconductance of the circuit as it is switching.