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.

Date of Patent:
Aug. 25, 2026

Filed:

Apr. 18, 2024
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Bodh Raj Gautam, Solan, IN;

Vikram Varma, Noida, IN;

Assignee:

NXP USA, INC., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 27/00 (2006.01); G01L 9/00 (2006.01);
U.S. Cl.
CPC ...
G01L 27/007 (2013.01); G01L 9/0072 (2013.01);
Abstract

A sensing circuit is coupled to a sensor comprising first and second sensing elements. The sensing circuit detects changes in physical parameters by determining change in attributes of first and second sensing elements. The sensing circuit may include a switching circuit, first and second test elements, and a converter. During a normal mode, the switching circuit couples the first and second sensing elements to the converter to generate a first parameter value. During a fault diagnosis mode, the switching circuit couples one of (i) a first test element and the second sensing element and (ii) a second test element and the first sensing element to the converter to generate a second parameter value. The second parameter value is compensated to obtain a third parameter value that is further compared with the first parameter value to obtain a differential value. Based on the differential value, faults in the sensor are detected.


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