Patents by Inventor Bernd Hedenetz
Bernd Hedenetz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7586953Abstract: The invention refers to a method for monitoring a communication media access schedule of a communication controller (5) of a communication system (1) by means of a bus guardian (6). The communication system (1) comprises a communication media (2) and nodes (3) connected to the communication media (2). Each node (3) comprises a communication controller (5) and a bus guardian (6) assigned to the communication controller (5). Messages are transmitted among the nodes (3) across the communication media (2) based on a cyclic time triggered communication media access scheme.Type: GrantFiled: July 7, 2003Date of Patent: September 8, 2009Assignees: Robert Bosch GmbH, Bayerische Motoren Werke AG, DaimlerChrysler AG, Freescale Semiconductor, Inc., GM Global Technology Operations, Inc., NXP B.V.Inventors: Thomas Forest, Bernd Hedenetz, Mathias Rausch, Christopher Temple, Harald Eisele, Bernd Elend, Jörn Ungermann, Matthias Kühlewein, Ralf Belschner, Peter Lohrmann, Florian Bogenberger, Thomas Wuerz, Arnold Millsap, Patrick Heuts, Robert Hugel, Thomas Führer, Bernd Müller, Florian Hartwich, Manfred Zinke, Josef Berwanger, Christian Ebner, Harald Weiler, Peter Fuhrmann, Anton Schedl, Martin Peller
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Patent number: 7586933Abstract: The invention concerns a network comprising an interconnecting network and several network nodes that are coupled to said interconnecting network and are designed to adapt their local communication time schedule to the communication time schedule of at least one other network mode, prior to being integrated as active network nodes. A network node to be integrated checks the activity of other network nodes and if no activity is identified, sends out positional messages for other network nodes, said message being fixed by predetermination in its communication time schedule. If a network node cannot be integrated as a reference node, it can only be integrated as an active node if it adapts its local communication time schedule to that of the reference node after receiving positional messages and if a check as to whether its own communication time schedule agrees with the communication time schedules of at least some of the active network nodes proves positive.Type: GrantFiled: April 4, 2003Date of Patent: September 8, 2009Assignees: Robert Bosch GmbH, Bayerische Motoren Werke AG, DaimlerChrysler AG, Freescale Semiconductor, Inc., GM Global Technology Operations, Inc., NXP B.V., DECOMSYS—Dependable Computer Systems, Hardware und Software Entwicklung GmbHInventors: Ing Ralf Belschner, Bernd Hedenetz, Christopher Temple, Anton Schedl, Josef Berwanger, Martin Peller, Thomas Führer, Arnold Millsap, Thomas Forest, Gregor Pokorny, Peter Fuhrmann
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Patent number: 7430261Abstract: A method and a bit stream decoding unit for bit stream decoding has a bit stream comprising a number of consecutive samples. In order to provide for rapid and, in particular, reliable decoding of the bit stream, a detection window comprising a number of samples is defined and the detection window is positioned at certain positions on the bit stream in order to comprise certain samples with respective sample values. A majority voting is applied to the sample values in the detection window and, in dependence on the result of the majority voting, the bit stream is decoded and respective bit values are generated.Type: GrantFiled: July 7, 2003Date of Patent: September 30, 2008Assignees: Robert Bosch GmbH, DaimlerChrysler 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, Jörn Ungermann, Matthias Kühlewein, Ralf Belschner, Peter Lohrmann, Florian Bogenberger, Thomas Wuerz, Arnold Millsap, Patrick Heuts, Robert Hugel, Thomas Führer, Bernd Müller, Florian Hartwich, Manfred Zinke, Josef Berwanger, Christian Ebner, Harald Weiler, Peter Fuhrmann, Anton Schedl, Martin Peller
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Patent number: 7349512Abstract: The present invention provides an improved clock synchronization algorithm for a distributed system intended for real time applications by performing at the same time an off-set correction and a clock read correction at each node of the distributed system. Expensive oscillators can be avoided and synchronization can be established faster and with higher precision.Type: GrantFiled: July 24, 2002Date of Patent: March 25, 2008Assignees: Motorola, Inc., Robert Bosch GmbH, DaimlerChrysler AG, Bayerische Motoren WerkeInventors: Mathias Rausch, Bernd Müller, Bernd Hedenetz, Anton Schedl
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Patent number: 7103805Abstract: A central node for a data bus system includes a bus monitor unit with receiver means for registering signals on the data bus, and evaluation means which detect incorrect communication on the data bus and at least temporarily block communication by the user that causes the incorrect communication or compensate the incorrect communication of a user which is triggered by the interference influences. The bus monitor unit includes timing means which are triggered according to time patterns for the transmission of each user of the data bus, in order to detect an incorrect communication of a user if the latter transmits outside the time provided for it. The bus monitor unit is integrated into the central bus node and a plurality of bus branches of different users are combined at the central node so that the bus monitor unit can check a plurality of users for incorrect communication. In order to increase reliability, in addition to the bus monitor unit, a diagnostic unit is integrated into the central node.Type: GrantFiled: September 26, 2002Date of Patent: September 5, 2006Assignee: DaimlerChrysler AGInventors: Ralf Belschner, Bernd Hedenetz
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Publication number: 20050232224Abstract: The invention concerns a network comprising an interconnecting network and several network nodes that are coupled to said interconnecting network and are designed to adapt their local communication time schedule to the communication time schedule of at least one other network mode, prior to being integrated as active network nodes. A network node to be integrated checks the activity of other network nodes and if no activity is identified, sends out positional messages for other network nodes, said message being fixed by predetermination in its communication time schedule. If a network node cannot be integrated as a reference node, it can only be integrated as an active node if it adapts its local communication time schedule to that of the reference node after receiving positional messages and if a check as to whether its own communication time schedule agrees with the communication time schedules of at least some of the active network nodes proves positive.Type: ApplicationFiled: April 4, 2003Publication date: October 20, 2005Inventors: Ing Belschner, Bernd Hedenetz, Christopher Temple, Anton Schedl, Josef Berwanger, Martin Peller, Thomas Fuhrer, Arnold Millsap, Thomas Forest, Gregor Pokorny, Peter Fuhrmann
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Publication number: 20050141565Abstract: 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: ApplicationFiled: July 7, 2003Publication date: June 30, 2005Applicants: 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
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Publication number: 20050013394Abstract: The present invention provides an improved clock synchronization algorithm for a distributed system intended for real time applications by performing at the same time an off-set correction and a clock read correction at each node of the distributed system. Expensive oscillators can be avoided and synchronization can be established faster and with higher precision.Type: ApplicationFiled: July 24, 2002Publication date: January 20, 2005Inventors: Mathias Rausch, Bernd Muller, Bernd Hedenetz, Anton Schedl
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Publication number: 20040090962Abstract: A method and a bit stream decoding unit for bit stream decoding has a bit stream comprising a number of consecutive samples. In order to provide for rapid and, in particular, reliable decoding of the bit stream, a detection window comprising a number of samples is defined and the detection window is positioned at certain positions on the bit stream in order to comprise certain samples with respective sample values. A majority voting is applied to the sample values in the detection window and, in dependence on the result of the majority voting, the bit stream is decoded and respective bit values are generated.Type: ApplicationFiled: July 7, 2003Publication date: May 13, 2004Applicant: Robert Bosch GmbH,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
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Publication number: 20040081193Abstract: Method for transmitting data within a communication system, the communication system comprising a communication media and a number of nodes connected to the communication media, the data being transmitted across the communication media within a communication cycle comprising a number of time slots assigned to one or more nodes of the communication system. In order to provide a possibility for a data transmission within communication cycles, which can satisfy the demands in communication systems for safety critical applications, too, it is suggested, that the communication cycle is initiated by an external event. The external event can be caused by manually setting a bit by a host, by a configurable timer in a controller host interface (CHI) or by an external trigger.Type: ApplicationFiled: July 7, 2003Publication date: April 29, 2004Inventors: 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
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Publication number: 20040081079Abstract: The invention refers to a method for monitoring a communication media access schedule of a communication controller (5) of a communication system (1) by means of a bus guardian (6). The communication system (1) comprises a communication media (2) and nodes (3) connected to the communication media (2). Each node (3) comprises a communication controller (5) and a bus guardian (6) assigned to the communication controller (5). Messages are transmitted among the nodes (3) across the communication media (2) based on a cyclic time triggered communication media access scheme.Type: ApplicationFiled: July 7, 2003Publication date: April 29, 2004Applicants: 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
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Patent number: 6684146Abstract: A vehicle steering and braking system includes a distributed control loop in which a state-determining device for generating signals that describe current vehicle operation, an arithmetic unit for generating set point signals and a regulator unit for generating actuator signals are connected to one another by a data bus. The signals of the devices and units, which are transmitted via the data bus, are combined in cycles, one complete set of information being capable of being transmitted via the data bus in each cycle. Within a single cycle the signals of the respective units and devices are generated and transmitted via the data bus in the sequence: arithmetic unit—state-determining device—regulator unit. Each of the components comprising the arithmetic unit—state-determining device and regulator unit, however, can form the starting point of the sequence without changing the sequence itself.Type: GrantFiled: February 6, 2002Date of Patent: January 27, 2004Assignee: DaimlerChrysler AGInventor: Bernd Hedenetz
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Publication number: 20030093727Abstract: A central node for a data bus system having a bus monitor unit with a receiver for registering the signals on the data bus, and evaluation means that detect a faulty communication, and at least temporarily block communication by the user causing the faulty communication, or compensate an incorrect communication triggered by interference influences. The bus monitor unit is integrated into the central bus node and a plurality of bus branches of different users are combined at the central node so that the bus monitor unit can check a plurality of users for incorrect communication. In addition, a diagnostic unit is integrated into the central node, for monitoring the regularity of retriggering of the bus monitor in response to time patterns of the data bus, so that the monitor unit can be deactivated in the absence of retriggering.Type: ApplicationFiled: September 26, 2002Publication date: May 15, 2003Inventors: Ralf Belschner, Bernd Hedenetz
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Patent number: RE42080Abstract: A central node for a data bus system includes a bus monitor unit with receiver means for registering signals on the data bus, and evaluation means which detect incorrect communication on the data bus and at least temporarily block communication by the user that causes the incorrect communication or compensate the incorrect communication of a user which is triggered by the interference influences. The bus monitor unit includes timing means which are triggered according to time patterns for the transmission of each user of the data bus, in order to detect an incorrect communication of a user if the latter transmits outside the time provided for it. The bus monitor unit is integrated into the central bus node and a plurality of bus branches of different users are combined at the central node so that the bus monitor unit can check a plurality of users for incorrect communication. In order to increase reliability, in addition to the bus monitor unit, a diagnostic unit is integrated into the central node.Type: GrantFiled: September 5, 2008Date of Patent: January 25, 2011Inventors: Ralf Beischner, Bernd Hedenetz