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. 30, 2001
Filed:
Sep. 30, 1996
Ira E. Baskett, Tempe, AZ (US);
Andrew C. McNeil, Scottsdale, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A circuit and method for correcting a sense signal of a sensor (,) where the sense signal is reduced by a negative nonlinear error component introduced by membrane stress in a sensor structure (,). A first transducer (,) is disposed at a location (,) having substantial bending stress to produce a sense signal having a linear component and the nonlinear error component. A second transducer (,) is disposed at a location (,) with substantially zero bending stress to produce a sense signal having the nonlinear error component but a substantially zero linear component. The sense signal from the second transducer (,) is added to the sense signal from the first transducer (,) to correct the nonlinear error for producing a linear output sense signal (V,) of the sensor (,) which is representative of the physical condition.