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. 08, 2017
Filed:
May. 23, 2013
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Cristian Zucchetti, Greenville, SC (US);
Axel Schwab, Munich, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A method is provided for encrypted radio transmission of data telegrams spaced apart in time in a sequence between a transmitter and a receiver of a system, wherein a key is changeable and is cryptologically derived from a current piece of information. The time elapsed between a preceding telegram and the encrypted telegram implementing the desired data transmission is used as the key. The time span results from a value or entry of a parameter present in the system. The duration in the transmitter and the receiver is determinable from a previously transmitted value or entry of a parameter, or derived only in the transmitter and wirelessly transmitted to the receiver for a future telegram. In a motor vehicle tire pressure monitoring system, the transmitted data originate from a tire sensor and are wirelessly transmitted in an encrypted manner to a vehicle body.