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:
May. 13, 2008
Filed:
Jul. 28, 2006
Larry Petersen, Pocatello, ID (US);
Jose Taveira, Pocatello, ID (US);
Larry Petersen, Pocatello, ID (US);
Jose Taveira, Pocatello, ID (US);
ON Semiconductor, Phoenix, AZ (US);
Abstract
Calibration of a sensor circuit that includes a sensor, a temperature measurement circuit and a signal processing path. The sensor senses a physical parameter to be measured and generates an electrical sensor output signal representing the physical parameter. The temperature measurement circuit outputs a measured temperature. The signal processing path is coupled to the sensor so as to receive the electrical sensor output signal and use the measured temperature to compensate for temperature variations in the electrical sensor output signal. During calibration, the output voltage of the signal processing path is measured at multiple temperatures, and at multiple values of the physical parameter being measured at each temperature while the signal processing path is disconnected from using the measured temperature of the temperature measurement circuit.