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:
Nov. 27, 2012
Filed:
Oct. 30, 2009
Hilton W. Girard, Iii, West Bloomfield, MI (US);
Nikolay Yakovenko, West Bloomfield, MI (US);
Riad Ghabra, Dearborn Heights, MI (US);
Hilton W. Girard, III, West Bloomfield, MI (US);
Nikolay Yakovenko, West Bloomfield, MI (US);
Riad Ghabra, Dearborn Heights, MI (US);
Lear Corporation, Southfield, MI (US);
Abstract
A system and method for authorizing a remote device amongst multiple remote devices for passive functions, such as passive entry and passive start, includes a vehicle having a plurality of strategically located antennas, combinations of which transmit a query signal and receive query responses, a challenge antenna amongst the plurality of antennas for transmitting a challenge signal to at least one of the multiple remote devices in accordance with a challenge order, and a control unit having a controller in communication with the antennas for determining the challenge order based upon the query responses. The controller can determine whether a remote device is located in an authorization zone, out of an authorization zone, or whether the remote device's location is indeterminate.