Publication number: 20050141565
Abstract: The invention refers to one of a number of nodes of a communication system. The nodes are connected to a communication media for transmitting data among the nodes. Said one node comprises a communication controller, across which the node is connected to the communication media, and a bus guardian for controlling access of the communication controller to the communication media. In order to provide a cheap but nevertheless reliable way for monitoring the synchronized clock signal of a node of a communication system and in particular for detecting deviations of the synchronized clock signal it is suggested that a synchronized clock signal from the communication controller is made available to the bus guardian, and that the bus guardian comprises means for monitoring the synchronized clock signal using a bus guardian internal clock signal, which is generated by means of an electronic circuit and which is less accurate than the synchronized clock signal to be monitored.
Type:
Application
Filed:
July 7, 2003
Publication date:
June 30, 2005
Applicants:
Robert Bosch GmbH, Daimler Chrysler AG, Bayerische Motoren Werke AG, General Motors Corp., Motorola Inc., Koninklijke Philips Electronics N.V.
Inventors:
Thomas Forest, Bernd Hedenetz, Mathias Rausch, Christopher Temple, Harald Eisele, Bernd Elend, Jorn Ungermann, Matthias Kuhlewein, Ralf Belschner, Peter Lohrmann, Florian Bogenberger, Thomas Wuerz, Arnold Millsap, Patrick Heuts, Robert Hugel, Thomas Fuhrer, Bernd Muller, Florian Hartwich, Manfred Zinke, Josef Berwanger, Christian Ebner, Harald Weiler, Peter Fuhrmann, Anton Schedl, Martin Peller