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US 6,310,408 B1Granted
System for transmitting data in a motor vehicle
AssigneeSiemens Aktiengesellschaft
InventorStefan Hermann
Life of this patent
Estimating the term…
Abstract
The invention relates to a data transmission method and a data processing system for use in a motor vehicle, in which a satellite station is supplied with power by a central station via a data transmission line that is used jointly for the transmission of data and the supply of power. The quiescent voltage on the data transmission line is regulated with a current generator in the central station and is fed back with low-pass filter characteristics.
Claims11
A data transmission system in a motor vehicle, comprising:
- a central station, a satellite station, and a data transmission line connecting said satellite station to said central station for transmitting data therebetween in form of current pulses;
- a current generator with low-pass filter characteristics feedback in said central station, said current generator having an output connected to said data transmission line for supplying power to said satellite station via said data transmission line;
- a voltage amplifier for regulating said current generator, said voltage amplifier having an input connected to said data transmission line and receiving a voltage reference signal and an output coupled to a control input of said current generator.
Dependencies are inferred from the claim text.