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:
Apr. 08, 2003
Filed:
Nov. 22, 2000
Applicant:
Inventor:
Edward R. Hornback, Dexter, MI (US);
Assignee:
Kelsey-Hayes Company, Livonia, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08C 1/900 ;
U.S. Cl.
CPC ...
G08C 1/900 ;
Abstract
A signal conditioning circuit is provided for a plurality of pressure signals generated by individual pressure sensors mounted upon a hydraulic control valve. The signal conditioning circuit sequentially samples each of the pressure sensors and multiplexes the individual pressure signals into a single analog pressure signal. The signal conditioning circuit includes a differential amplifier that is compensated for offset and linearity as a function of which particular pressure sensor is being sensed.