Patent · US Active

Method and device for improving the data transmission security in a serial data transmission having flexible message size

US9361178B2 · kind B2 · utility

3Cited by

8References

29Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Florian Hartwich · Reutlingen, DE
Jan Scheuing · Brackenheim, DE

Key dates

Filing date	Jul 19, 2012
Grant date	Jun 7, 2016
Priority date	—
Expiry date	Nov 11, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2012/40215
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method is provided for serial data transmission in a bus system having at least two bus subscribers, which exchange messages via the bus, the send access to the bus for each message being assigned to a bus subscriber by the arbitration method according to CAN Standard ISO 11898-1; it being decided as a function of a suitable identification (EDL) which result from one of the CRC calculations started in parallel is used for checking the correct data transmission; for at least one value of the identification an additional condition being checked, and in response to its presence, fixed stuff bit sequences from one or more bits are inserted into the message by the sender, at least into parts of the message.

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