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:
Aug. 10, 2010
Filed:
Nov. 15, 2007
William Todd Watson, Belleville, MI (US);
William Merrick, Northville, MI (US);
Leonard S. Cech, Brighton, MI (US);
Timothy J. Bomya, Westland, MI (US);
Richard W. Smith, Dearborn, MI (US);
Hiroshi Aoki, Ritto, JP;
William Todd Watson, Belleville, MI (US);
William Merrick, Northville, MI (US);
Leonard S. Cech, Brighton, MI (US);
Timothy J. Bomya, Westland, MI (US);
Richard W. Smith, Dearborn, MI (US);
Hiroshi Aoki, Ritto, JP;
TK Holdings, Inc., Pontiac, MI (US);
Abstract
A magnetic field generated by at least one coil operatively associated with a first portion of a vehicle responsive to a first signal from a signal source causes an eddy current in at least one conductive element operatively associated with or at least a part of a second portion of the vehicle. In one aspect, a circuit operatively coupled to the at least one coil generates a second signal responsive to a self-impedance of the at least one coil, wherein the second signal is at least partially in-phase with the first signal. In another aspect, a magnetic sensor is responsive to an eddy current in the at least one conductive element. In yet another aspect, the at least one conductive element comprises a metal sheet, film or coating of paramagnetic or diamagnetic material that is relatively highly conductive.