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:
Mar. 24, 2015
Filed:
Mar. 01, 2012
Lingmin Shao, Ridgetown, CA;
Ryan Elliott, Chatham, CA;
Lingmin Shao, Ridgetown, CA;
Ryan Elliott, Chatham, CA;
KSR IP Holdings LLC, Wilmington, DE (US);
Abstract
A sensor circuit for use with a shaft assembly rotatably mounted in a housing and having an input shaft, an output shaft and a torsion bar which connects the input and output shafts together. A CR coil mounted to the housing around the shaft assembly is energized and generates an electromagnetic field. An RX coil is mounted to and rotates with the shaft assembly and has an output connected to a power circuit to generate electrical energy when excited by the electromagnetic field from the first coil. The power circuit powers an angle sensor which transmits a signal back to the first coil representative of the angle between the input and output shafts.