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:
Jun. 23, 1998
Filed:
Sep. 30, 1996
George B Gritt, Jr, Mesa, AZ (US);
Ira E Baskett, Tempe, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A compensation circuit (106) corrects for nonlinearities in a sensor signal representing the physical state of a sensor (100). A transducer (102) produces a non-linear component in a transducer voltage signal. A voltage-current converter (104) converts the tranducer voltage signal to a transducer current which contains the non-linear component. A compensation circuit (106) squares the transducer current (I.sub.216) and uses a scaling current (I.sub.412) to generate a compensation current (I.sub.408) equal to the non-linear component. The current (I.sub.216) and scaled compensation current (I.sub.408) are summed at a summing junction (418) to produce an output current (I.sub.OUT) which is a substantially linear representation of the physical state of the sensor.