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:
Oct. 12, 2004
Filed:
Jul. 08, 2003
Applicant:
Inventors:
Curtis P. Cyran, Dayton, OH (US);
Robert J. Disser, Dayton, OH (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 2/728 ;
U.S. Cl.
CPC ...
G01R 2/728 ;
Abstract
A method and circuit for detecting a change in inductance of a variable inductance element. An oscillating signal has a frequency that varies with inductance of the element. An intermediate voltage is produced at a level that varies according to frequency of the oscillating signal. The intermediate voltage is scaled to produce an output voltage.