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:
Oct. 29, 2019
Filed:
Dec. 15, 2015
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Joachim Degen, Schermbeck, DE;
Jorg Jahn, Bünde, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A device for inductive positioning comprises a coil, an element for influencing a magnetic field in the area of the coil, a signal generator for providing a digital signal and a delay element with an input and an output, wherein the delay element is designed on the basis of the coil and a delay period between a signal edge at the input and a corresponding signal edge at the output is dependent on the inductance of the coil. The device further comprises a comparator to provide a digital differential impulse, whose length is dependent on a time difference of corresponding signal edges at the input and the output of the delay element, an integrator to provide a voltage depending on the length of the differential impulse and an evaluator to determine the position of the coil in reference to the coil based the voltage.