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:
Jul. 10, 1990
Filed:
Jan. 19, 1989
Applicant:
Inventor:
David P Laude, Colorado Springs, CO (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307359 ; 307362 ; 307363 ;
Abstract
A CMOS comparator has programmable hysteresis using a differential pair of MOS transistors, a current mirror pair of transistors and a feedback path which is function of comparator output, MOSFET threshold voltage and digitally selectable inputs. The comparator has characteristics suitable for sensing and processing low level signals from a variable reluctance sensor in an electrically noisy environment.