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. 05, 2013
Filed:
Feb. 20, 2009
Roland Porsch, Speichersdorf, DE;
Stefan Rothbauer, Allershausen, DE;
Roland Porsch, Speichersdorf, DE;
Stefan Rothbauer, Allershausen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method and system for transmitting a message in real time between users in a closed network of a vehicle (), in particular a rail-mounted vehicle, are provided, wherein safety-relevant real-time data (D) of a message (N), including a transmitter ID of a transmitter () within the closed network, is encrypted (S) using a private key (K) of the transmitter () in order to generate an encrypted message (N'); the encrypted message (N′), together with the unencrypted transmitter ID of the transmitter (), is transmitted (S) from the transmitter () to a receiver () within the closed network via a vehicle bus (), and the encrypted message (N′) is decrypted by the receiver () using a public key (K) of the transmitter () identified by the received, unencrypted transmitter ID in order to retrieve the unencrypted message (N). The received transmitter ID is compared with the transmitter ID contained in the retrieved message (N) in order to determine whether the message (N) has been transmitted correctly.