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:
Dec. 21, 2010
Filed:
Nov. 19, 2007
Liviu Chiaburu, Chandler, AZ (US);
Marco Fuhrman, Mesa, AZ (US);
Thomas D. Ohe, Tempe, AZ (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A sensor system () includes transducers () each yielding an analog signal () representing a parameter independently sensed by each of the transducers (). The signals () are summed and the resulting transducer signal () is converted to a digital transducer signal () by a high resolution analog-to-digital converter (ADC) (). Concurrently, one of the signals () is subtracted from the other. The resulting difference signal () is converted to a digital difference signal () by a low resolution ADC (). When the digital difference signal () is within a threshold window (), a fault signal () indicates a normal condition () of the transducers (). When the signal () falls outside of the threshold window (), a fault signal () indicates a fault condition () of the transducers. The transducer and fault signals () are concurrently output from the sensor system ().