Method and filter system for filtering messages received via a serial data bus of a communication network by a user of the network

US9154324B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Florian Hartwich · Reutlingen, DE
• Franz Bailer · Messingen, DE
• Markus Ihle · Reutlingen, DE
• Christian Horst · Dußlingen, DE

Key dates

• Filing date: Mar 5, 2009
• Grant date: Oct 6, 2015
• Expiry date: Dec 28, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2012/40215
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method and a filter system for filtering messages which are received, via a serial data bus of a communications network, in a communication module of a user connected to the data bus. To allow particularly simple and efficient filtering of incoming messages, even when there is a large number of filtering criteria, it is proposed that the filter system includes a list in which multiple identifier pairs are stored which define a range delimited in each case by a first identifier and a second identifier. The identifier for an incoming message is compared at least to selected identifier pairs from the list, and a query is made concerning whether the identifier for the incoming message is greater than, or greater than or equal to, the selected first identifier, and is less than, or less than or equal to, the selected second identifier. The incoming message is forwarded to the application or rejected, depending on the configuration bit specification, if the identifier for the incoming message is within the range delimited by the first identifier and the second identifier.