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:
Jan. 11, 2011
Filed:
Jun. 05, 2008
Applicants:
Stephen Besch, Buffalo, NY (US);
Frederick Sachs, Buffalo, NY (US);
Inventors:
Stephen Besch, Buffalo, NY (US);
Frederick Sachs, Buffalo, NY (US);
Assignee:
The Research Foundation of State University of New York, Amherst, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 35/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The method and system of the present invention uses synchronous rectification and frequency domain analysis to remove the need for calibration of the A/D and D/A components. It is applicable to any sensor based measurement in which either the sensor can be excited with an AC voltage or current, or in which the signal can be modulated with an AC voltage or current.