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, 2004
Filed:
Dec. 13, 2000
Applicant:
Inventors:
Hans-Peter Lässle, Usingen, DE;
Dietmar Schmid, Villmar, DE;
Assignee:
Mannesmann VDO AG, Frankfurt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 ;
U.S. Cl.
CPC ...
H04L 9/32 ;
Abstract
An apparatus for activating and/or deactivating a security device, particularly an entry device for a motor vehicle, having a portable transmitter unit for wirelessly transmitting a coded information item which is received by a receiver apparatus and is compared with a prescribed coded information item, the receiver apparatus being capable of outputting an actuation signal to the security device if the two coded information items match, and wherein the codes of the transmitter unit and the receiver apparatus can be updated in terms of the currently coded information items to prevent unauthorized use of the motor vehicle.