Automotive gauge system using a power line carrier
First Claim
1. A data display system comprising:
- (a) at least one data source;
(b) a data transmitter coupled to the at least one data source and to a transmission network comprising a power line;
wherein the data transmitter comprises means for modulating the data as a frequency modulated carrier and means for transmitting the carrier over the power line;
(c) at least one gauge having a display and coupled to the power line, and a data receiver comprising means for demodulating the carrier and means for translating the data to the display;
(d) wherein the at least one gauge is coupled to the data transmitter only by the power line, disregarding any ground connections, and wherein the power line provides power to both the at least one gauge and the data transmitter.
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Accused Products
Abstract
A data display system including a plurality of data sources; a data transmitter coupled to the data sources and to a transmission network comprising a power line; wherein the data transmitter comprises means for modulating the data as a frequency modulated carrier and means for transmitting the carrier over the power line; and a plurality of gauges each having a display and coupled to the power line, and a data receiver comprising means for demodulating the carrier and means for translating the data to the display. The gauges are coupled to the data transmitter only by the power line, disregarding any ground connections, and the power line provides power to the gauges and the data transmitter.
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Citations
17 Claims
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1. A data display system comprising:
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(a) at least one data source; (b) a data transmitter coupled to the at least one data source and to a transmission network comprising a power line;
wherein the data transmitter comprises means for modulating the data as a frequency modulated carrier and means for transmitting the carrier over the power line;(c) at least one gauge having a display and coupled to the power line, and a data receiver comprising means for demodulating the carrier and means for translating the data to the display; (d) wherein the at least one gauge is coupled to the data transmitter only by the power line, disregarding any ground connections, and wherein the power line provides power to both the at least one gauge and the data transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13)
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11. A method of connecting a gauge panel comprising a plurality of gauges to a plurality of data sources with a transmission network consisting of a power line, the method comprising the steps of:
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(a) providing power to each gauge and a data transmitter with the power line; (b) modulating the data received from the data sources as a frequency modulated carrier and transmitting the carrier over the power line; and (c) demodulating the carrier in the corresponding gauge, selecting data relevant to the corresponding gauge and displaying the relevant data as a human readable display. - View Dependent Claims (12, 14, 15, 16, 17)
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Specification