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. 14, 2015
Filed:
Jun. 05, 2012
Applicants:
Tobias Ott, Wolnzach, DE;
Patrick Sassmannshausen, Boehmfeld, DE;
Inventors:
Tobias Ott, Wolnzach, DE;
Patrick Sassmannshausen, Boehmfeld, DE;
Assignee:
Audi AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08C 19/28 (2006.01); G08C 19/00 (2006.01); B60R 25/20 (2013.01); G07C 9/00 (2006.01);
U.S. Cl.
CPC ...
G08C 19/00 (2013.01); B60R 25/2072 (2013.01); G07C 9/00309 (2013.01); G07C 9/00111 (2013.01); G07C 9/00674 (2013.01);
Abstract
A method and apparatus teach a plurality of keys to an authorization device in a vehicle. The keys that are in a reception range of a transmission unit of the authorization device receive a test signal from the authorization device. The respective key ascertains a key-specific time window from at least one signal parameter of the test signal that is dependent on the physical location of the key, during which the respective key transmits a response signal that can be received by the transmission unit and recorded by the authorization device.