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:
Apr. 13, 2021
Filed:
Oct. 28, 2019
Melexis Bulgaria Ltd., Sofia, BG;
Rumen Marinov Peev, Sofia, BG;
Stoyan Georgiev Gaydov, Sofia, BG;
Tsvetan Miroslavov Marinov, Sofia, BG;
MELEXIS BULGARIA LTD., Sofia, BG;
Abstract
A sensor device includes a sensor for sensing amounts of a physical quantity, such as an environmental attribute, and providing sensor signals formed in response to the sensed physical quantity. A diagnostic test circuit provides multiple diagnostic test signals each representing a desired response to a particular amount of the physical quantity. A signal circuit selects the sensor signal or the diagnostic test signal and forms a signal circuit output. A reference circuit provides a calibrated reference signal corresponding to a threshold amount of the physical quantity. A comparator receives and compares the calibrated reference signal and the signal circuit output to form a comparison signal. A control circuit controls the signal circuit, reference circuit, and diagnostic test circuit and receives the comparison signal to output a sensor device sensor signal or sensor device diagnostic signal.