Apparatus and method for transmitting digital data over various communication media
First Claim
1. A system for wirelessly transmitting a communication signal between power delivery lines comprising:
- a Digital Signal Processing (DSP) modulator having an output coupled to an input of a Frequency Modulator (FM) device, the DSP modulator outputting a DSP signal to the FM device, the FM device receiving the DSP signal and frequency modulating the DSP signal to generate a combined FM-DSP signal;
a transmitter which receives the FM-DSP signal from the FM device and outputs the FM-DSP signal at a radio frequency;
a first power delivery line which receives the FM-DSP signal from the transmitter and radiates the FM-DSP signal from a conductor of the first power delivery line;
a second power delivery line which wirelessly receives, by a conductor of the second power delivery line, the FM-DSP signal radiated from the first power delivery line, anda receiver connected to the second power delivery line which receives the FM-DSP signal from the second power delivery line via a coupler;
said coupler being either a capacitive or a resin/dielectric-filled type of coupler which matches the characteristic impedance of the second power delivery line to the characteristic impedance of the receiver.
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Accused Products
Abstract
A system is described for transmitting a communication signal between power lines. The system includes: a transmitter which outputs an OFDM or an FM-OFDM signal at a radio frequency greater than 200 MHz; a first power line which receives the OFDM or the FM-OFDM signal from the transmitter and radiates the OFDM or the FM-OFDM signal from a conductor of the first power line; a second power line which wirelessly receives, by a conductor of the second power line, the OFDM or the FM-OFDM signal radiated from the first power line, and a receiver connected to the second power line which receives the OFDM or the FM-OFDM signal from the second power line.
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Citations
20 Claims
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1. A system for wirelessly transmitting a communication signal between power delivery lines comprising:
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a Digital Signal Processing (DSP) modulator having an output coupled to an input of a Frequency Modulator (FM) device, the DSP modulator outputting a DSP signal to the FM device, the FM device receiving the DSP signal and frequency modulating the DSP signal to generate a combined FM-DSP signal; a transmitter which receives the FM-DSP signal from the FM device and outputs the FM-DSP signal at a radio frequency; a first power delivery line which receives the FM-DSP signal from the transmitter and radiates the FM-DSP signal from a conductor of the first power delivery line; a second power delivery line which wirelessly receives, by a conductor of the second power delivery line, the FM-DSP signal radiated from the first power delivery line, and a receiver connected to the second power delivery line which receives the FM-DSP signal from the second power delivery line via a coupler;
said coupler being either a capacitive or a resin/dielectric-filled type of coupler which matches the characteristic impedance of the second power delivery line to the characteristic impedance of the receiver. - View Dependent Claims (17)
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2. A system for transmitting and receiving a communication signal using a conductor of a power delivery line comprising:
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a Digital Signal Processing (DSP) modulator having an output coupled to an input of a Frequency Modulator (FM) device, the DSP modulator outputting a DSP signal to the FM device, the FM device receiving the DSP signal and frequency modulating the DSP signal to generate a combined first FM-DSP signal; a first transmitter/receiver connected to the power delivery line via a coupler;
said first transmitter/receiver configured to output the first FM-DSP signal at the power delivery line and receive a second FM-DSP signal from the power delivery line, the power delivery line having a conductor configured to radiate the first FM-DSP signal received from the first transmitter and to wirelessly receive the second FM-DSP signal;said coupler being a capacitive or a resin/dielectric-filled type of coupler which matches the characteristic impedance of the power delivery line to the characteristic impedance of the first transmitter/receiver; and a second transmitter/receiver configured to wirelessly transmit the second FM-DSP signal to the power delivery line and to wirelessly receive the first FM-DSP from the power delivery line. - View Dependent Claims (3, 4, 5, 6, 18)
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7. A system for communication over a power delivery line comprising:
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a master modem including a Digital Signal Processing (DSP) modulator having an output coupled to an input of a Frequency Modulator (FM) device, the DSP modulator outputting a DSP signal to the FM device, the FM device receiving the DSP signal and frequency modulating the DSP signal to generate a first plurality of combined FM-DSP signals, the master modem connected to the power delivery line and configured to transmit the first plurality of FM-DSP signals over the power delivery line, each of the FM-DSP signals is transmitted within one distinct transmit frequency band, the master modem further configured to receive a second plurality of FM-DSP signals from the power delivery line, each of the second plurality of FM-DSP signals is received on one of a plurality of distinct receive frequency bands, pairs of the transmit and receive frequency bands respectively defining operating frequencies of sub-networks; a plurality of slave modems connected to the power delivery line, each being configured to operate in one of a plurality of sub-networks for receiving a corresponding FM-DSP signal from the master modem in a corresponding transmit frequency band, the slave modems further configured to transmit an FM-DSP signal to the master modem in a corresponding receive frequency band, wherein the slave modems in each sub-network transmit a time division multiplexed signal. - View Dependent Claims (8)
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9. A system for wirelessly transmitting a communication signal between power delivery lines comprising:
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a Digital Signal Processing (DSP) modulator having an output coupled to an input of a Frequency Modulator (FM) device, the DSP modulator outputting a DSP signal to the FM device, the FM device receiving the DSP signal and frequency modulating the DSP signal to generate a combined FM-DSP signal; a transmitter which outputs the FM-DSP signal at a radio frequency; a first power delivery line which receives the FM-DSP signal from the transmitter and radiates the FM-DSP signal from a conductor of the first power delivery line; a second power delivery line which wirelessly receives, by a conductor of the second power delivery line, the FM-DSP signal radiated from the first power delivery line, and a receiver connected to the second power delivery line which receives the FM-DSP signal from the second power delivery line. - View Dependent Claims (19)
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10. A system for wirelessly transmitting and receiving a communication signal using a conductor of a power delivery line comprising:
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a Digital Signal Processing (DSP) modulator having an output coupled to an input of a Frequency Modulator (FM) device, the DSP modulator outputting a DSP signal to the FM device, the FM device receiving the DSP signal and frequency modulating the DSP signal to generate a combined first FM-DSP signal; a first transmitter/receiver connected to the power delivery line, said first transmitter/receiver configured to output the first FM-DSP signal at the power delivery line and receive a second FM-DSP signal from the power delivery line, the power delivery line having a conductor configured to radiate the first FM-DSP signal received from the first transmitter and to wirelessly receive the second FM-DSP signal; and a second transmitter/receiver configured to wirelessly transmit the second FM-DSP signal to the power delivery line and to wirelessly receive the first FM-DSP from the power delivery line. - View Dependent Claims (11, 12, 13, 14, 20)
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15. A system for communication over a power delivery line comprising:
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a master modem including a Digital Signal Processing (DSP) modulator having an output coupled to an input of a Frequency Modulator (FM) device, the DSP modulator outputting a DSP signal to the FM device, the FM device receiving the DSP signal and frequency modulating the DSP signal to generate a first plurality of combined FM-DSP signals, the master modem connected to the power delivery line and configured to transmit the first plurality of FM-DSP signals on a respective plurality of distinct transmit frequency bands and to receive a second plurality of FM-DSP signals from the power delivery line, each of the second plurality of FM-DSP signals are received on one of a plurality of distinct receive frequency bands, pairs of the transmit and receive frequency bands corresponding to operating frequencies of a sub-network; a plurality of slave modems connected to the power delivery line, each slave modem being configured to operate in one of the plurality of sub-networks and adapted to receive a corresponding FM-DSP signal from the master modem in a corresponding transmit frequency band and to transmit an FM-DSP signal to the master modem in a corresponding receive frequency band, wherein the slave modems in each sub-network transmit a time division multiplexed signal. - View Dependent Claims (16)
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Specification