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. 13, 1985
Filed:
Feb. 22, 1983
Applicant:
Inventors:
James P Ericksen, Windsor, CT (US);
Timothy F Stack, Enfield, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
328150 ; 307261 ; 307358 ; 307475 ; 328163 ;
Abstract
A conventional regenerative comparator is modified by including a transistor switch in the feedback network to open circuit the feedback path according to the output state of the comparator, and by biasing the noninverting input of the comparator with a voltage directly proportional to the amplitude of the input signal, thereby providing variable threshold comparator with a hysteresis transfer characteristic with two distinct state change threshold levels that are a fixed ratio of the amplitude of the input signal.