Power supply line data transmission

摘要

A transmitter and a receiver for transmitting and receiving data via a power supply line comprise a local signal port for respectively receiving and transmitting a serial bit stream and a power line connection port for respectively transmitting a radio frequency signal and receiving the radio frequency signal via the power supply line. The transmitter comprises a modulator unit adapted for encoding the serial bit stream into a baseband signal and generating the radio frequency signal by mixing the baseband signal with a carrier wave so as to redundantly convey the at least one baseband signal in at least four spectral sidebands of the carrier wave. The receiver comprises a demodulator unit adapted for detecting the at least four spectral sidebands of the carrier wave in the radio frequency signal, isolating a baseband signal from the at least four spectral sidebands and decoding the baseband signal into the serial bit stream.

主权项

1. A transmitter for transmitting data over an automotive power supply line, the transmitter comprising:
a local signal port for receiving a serial bit stream, a power line connection port for transmitting a radio frequency signal over an automotive power supply line, and a modulator unit for emitting said radio frequency signal, wherein the modulator unit is adapted for encoding said serial bit stream into a baseband signal and generating the radio frequency signal by mixing said baseband signal with a carrier wave so as to redundantly convey the baseband signal in at least four spectral sidebands of the carrier wave, wherein the modulator unit is adapted for shifting the baseband signal conveyed in at least one of said at least four spectral sidebands over a predetermined time delay relative to the baseband signal conveyed in at least one other of said at least four spectral sidebands.