The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2005
Filed:
Oct. 17, 2000
Michael Bischoff, Hottenberg, DE;
Ruediger Deppe, Ingolstadt, DE;
Guenter Fendt, Schrobenhausen, DE;
Thomas Huber, Beilstein, DE;
Norbert Mueller, Schrobenhausen, DE;
Werner Nitschke, Ditzingen, DE;
Johannes Rinkens, Ingolstadt, DE;
Peter Schaedler, Ludwigsburg, DE;
Stefan Schaeffer, Ingolstadt, DE;
Werner Steiner, Schrobenhausen, DE;
Michael Bischoff, Hottenberg, DE;
Ruediger Deppe, Ingolstadt, DE;
Guenter Fendt, Schrobenhausen, DE;
Thomas Huber, Beilstein, DE;
Norbert Mueller, Schrobenhausen, DE;
Werner Nitschke, Ditzingen, DE;
Johannes Rinkens, Ingolstadt, DE;
Peter Schaedler, Ludwigsburg, DE;
Stefan Schaeffer, Ingolstadt, DE;
Werner Steiner, Schrobenhausen, DE;
Conti Temic microelectronic GmbH, Nuremberg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
Previously in a bus system, voltage signals were transmitted from the central unit to the modules, which could reply thereto by variation of the current input. A disadvantage thereby is the relatively high susceptibility to interference of the current input, which itself already must be kept relatively small due to the energy consumption, as well as the correspondingly high effort and expense for an error-free recognition of the signals transmitted from the modules in the central unit. It is now suggested, that the modules also answer to the central unit by means of voltage signals superposed on the direct supply voltage, whereby for the time duration of the signal transmission by the modules, the central unit provides the direct supply voltage to the bus line over a resistor, so that the voltage signal of the module can be detected in the central unit on the bus line on the side of the resistor facing away from the direct supply voltage. A preferred application for bus systems in motor vehicles, especially for a sensor data bus, is provided.