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:
Jan. 21, 1997
Filed:
May. 24, 1995
Horst Brinkmeyer, Waiblingen, DE;
Bernd Hense, Plochingen, DE;
Michael Daiss, Filderstadt, DE;
Gunter Schwegler, Weinstadt, DE;
Mercedes-Benz AG, , DE;
Abstract
In the new vehicle safety device according to the invention, random code information used to control the release of an electronic drive-away block arrangement consists of a combination of a plurality of partial information generated separately in operationally essential vehicle units which are separated from one another. The partial information is combined in a linking unit connected with these units for total random code information. Even after a code data exchange protocol has been intercepted by an unauthorized person, the latter, because of the structure of the safety device, can operate the vehicle only by replacing all of these units, which renders such unauthorized use by strangers unattractive because of the manipulations and expense required for this purpose.