Patent · US Active

Tachograph, toll onboard unit, display instrument, and system

US9196099B2 · kind B2 · utility

3Cited by

7References

23Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Thomas Grill · Villingen-Schwenningen, DE
Erwin Hess · Ottobrunn, DE
Raphael Lo Conte · Haag in Oberbayern, DE
Gerhard Rombach · Triberg, DE

Key dates

Filing date	Sep 25, 2008
Grant date	Nov 24, 2015
Priority date	—
Expiry date	Nov 20, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2012/40273
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A tachograph and a toll onboard unit as communication partners, which each have a data interface for a data communication via a vehicle data bus to which the communication partners are coupled. The tachograph and/or the toll onboard unit are implemented as a transmitter of data to ascertain a cryptographic check value as a function of user data, which are to be transmitted to the communication partner, and to transmit the cryptographic check value in addition to the user data to the communication partner. The toll onboard unit or the tachograph, respectively, as a receiver of data, is implemented to receive user data and the cryptographic check value associated with the user data from the communication partner and to check the received user data for corruption as a function of the received cryptographic check value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.