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7619322 |
Two-wire power and communications for irrigation systems
A large number of irrigation system devices connected to a common two-wire cable can be powered and individually controlled from a central location by transmitting over the cable DC pulses of...
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7602078 |
Combinational power cord for multimedia use
A combinational power cord for multimedia use includes one or more multimedia power devices mutually connected to provide power and to enable data transmission among different multimedia devices....
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7576447 |
Control and supply system
A control and supply system for electrical devices comprises at least one voltage supply and control device above sea level, a subsea cable connecting the voltage supply and control device with the...
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7493172 |
Methods and systems for stimulating a nerve originating in an upper cervical spine area to treat a medical condition
Methods of treating a medical condition of a patient include applying at least one stimulus to a target nerve within the patient with an implanted system control unit in accordance with one or more...
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7456516 |
Power line terminating circuit and method, and power line relay device
The present invention provides a power line terminating circuit and method and a power line relay device for setting indoor power lines to a state adapted to communications by making impedances...
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7456696 |
Circuit and method of compensating for signal delay in a cable
The compensation circuit comprises an oscillator, a first variable delay line, a second variable delay line, a phase detector and a controller. The oscillator generates an oscillation signal to...
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7358626 |
Two-wire power and communications for irrigation systems
A large number of irrigation system devices connected to a common two-wire cable can be powered and individually controlled from a central location by transmitting over the cable DC pulses of...
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7307357 |
Method and system to increase the throughput of a communications system that uses an electrical power distribution system as a communications pathway
A method and system to increase the throughput of a communications system that uses an electrical power distribution system as a communications pathway, determines the phase of the power...
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7291938 |
Power supply apparatus and method based on parasitic power extraction
Power supply apparatus and method based on parasitic power extraction is disclosed. Power is extracted from signals that are inbound and/or outbound from an equipment. The extracted power is...
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7262695 |
Network interface device
An apparatus is disclosed that provides a gateway function. The apparatus has an enclosure surrounding a network interface device. The network interface device has a communications network...
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7248148 |
Power line coupling device and method of using the same
The invention provides a method and a device for communicating a signal over a power line. One embodiment may comprise a length of power cable that comprises a center conductor substantially...
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7183901 |
Local network using an electrical power distribution system and associated reflection device
The invention concerns a local network for the transfer of information among several communication devices connected to an alternating current electrical power distribution system with a...
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7180412 |
Power line communication system having time server
A system for bi-directional power distribution line communication. The system is configured for data communication with an endpoint transceiver located at a customer premise. The system comprises a...
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7170395 |
Method and apparatus for attaching power line communications to customer premises
A method and apparatus for modifying a three-phase power distribution network in a building in order to provide data communication by using a Power Line Carrier (PLC) signal to an approximate...
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7148799 |
Arrangement of daisy chained inductive couplers for data communication
There is provided an arrangement of inductive couplers. The arrangement includes a first inductive coupler on a conductor, and a second inductive coupler on the conductor. The first inductive...
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7116007 |
Protecting medium voltage inductive coupled device from electrical transients
There is provided a method for protecting loads associated with power distribution system inductive signal couplers. The method includes (a) providing an inductive signal coupler having a first...
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7103240 |
Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
The present invention is drawn to an electrically “closed” method and apparatus for transmitting and receiving data signals over a high voltage power line. Inductive coupling is employed for...
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7084524 |
Bi-directional matrix converter with reverse start-up
A method for operating a matrix converter that includes converting m phases of a generator into alternating voltage with n phases of a load connected to a network, wherein n<m. The n phases of...
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7078982 |
Method and device for emitting pulses on an electricity distribution network
A method for emitting a predetermined series of pulses on an electricity distribution network carrying a determined voltage includes linking an electric element to the network by a switch and...
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7061136 |
Method and device for conditioning electric installations in buildings for the rapid transmission of data
A method and a device for conditioning electric installations in buildings for the rapid transmission of data produces symmetrical transmissions paths, along which high frequency signals can be...
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7042351 |
Data communication over a power line
Data signals are communicated between a power line and a computer, wherein the power line provides power to the computer via a distribution transformer and the computer is in communication with a...
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6998964 |
Splitter
A splitter for enabling a power signal and a communication signal to be transmitted over a common communication link is provided. The splitter includes a line port adapted to be coupled to a...
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6989734 |
Modulated data transfer between a system and its power supply
A power supply that includes networking capabilities where networking data is sent and received to and from other systems over the power line and to and from the rest of the system that is being...
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6956463 |
Method and apparatus for providing both power and communication over two wires between multiple low voltage AC devices
A system master unit is connected to a 24V AC power source. One or more slave units is connected to the master unit by a power/communication line. Bulk capacitance in the master and slave units...
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6950567 |
Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
The present invention is drawn to an electrically “closed” method and apparatus for transmitting and receiving data signals over a high voltage power line. Inductive coupling is employed for...
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6940396 |
Concurrent phase communication in TWACS
A method for concurrently communicating over each phase of an electrical power distribution network (N). A first outbound signal (SO 1 ) is transmitted over one phase (AN-A) of a bus (S) by an...
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6741162 |
Power line networking apparatus and method
An apparatus for carrying electrical data signals and electrical power over a power line is disclosed. The apparatus includes a data processing device, a power supply, and a data signal...
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6714881 |
Time reference compensation for improved metering accuracy
A method for time reference compensation in a power metering system, the method comprising monitoring a time-dependent characteristic of incoming AC power over a predetermined local time interval,...
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6559757 |
Data communication over power lines
A power line communication system includes a field-programmable gate array (FPGA) having a sine wave approximator driven by a high frequency clock in the FPGA. The sine wave approximator generates...
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6529120 |
System for communicating over a transmission line
A system for communicating over a transmission line has a plurality of transceivers, each for generating an information signal for transmission over the transmission line and for reception of an...
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6465903 |
Transmission of an operating order via an A.C. supply line
The present invention relates to a transmitter of an analog order over an A.C. supply line meant for a load, including a one-way conduction element in parallel with a resistive element having a...
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6313738 |
Adaptive noise cancellation system
A power line adaptive noise cancellation system receives noise signals from house power lines and adaptively cancels the received noise from a power line input signal. The system includes a power...
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6297730 |
Signal connection device for a power line telecommunication system
The present invention provides a signal connection installation including a signal connection device connected to a power fuse holder, in which the power fuse holder holds a power fuse cartridge...
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6282405 |
Hybrid electricity and telecommunications distribution network
A telecommunications network for linking a plurality of premises, comprising, typically, a fiber optic or coaxial cable, and a plurality of electrical power cables each connected to a respective...
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6255935 |
Coupling capacitor having an integrated connecting cable
The invention relates to a simplified and cost-effective apparatus for injecting signals into electrical power lines at the high-voltage or medium-voltage level. A coupling unit which is simple to...
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6172597 |
Electricity distribution and/or power transmission network and filter for telecommunication over power lines
A power transmission network (40) is disclosed which includes an input of telecommunication signals having carrier frequencies greater than 1 MHz onto the network, and a removing similar speech...
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6134259 |
Optical resonator with spiral optical elements
This invention discloses an optical resonator (24) including at least one spiral optical element (44) operative to change the angular phase distribution of modes in the optical resonator (24),...
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6085327 |
Area-efficient integrated self-timing power start-up reset circuit with delay of the start-up reset until the system clock is stabilized
A circuit and a method are disclosed for a power start-up reset circuit which is self-timing and which can be fully integrated in a standard CMOS or BiCMOS process along with other digital...
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6023106 |
Power line circuits and adaptors for coupling carrier frequency current signals between power lines
Power line coupling circuits and adapters for coupling carrier frequency current signals between power lines. The coupling circuits can be arranged between outlets on different power lines, either...
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5977650 |
Transmitting communications signals over a power line network
Communications signals are transmitted over a power distribution network. A plurality of communications stations which are coupled to the power lines are served by a base station. Communications...
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5892795 |
Telecommunication system and modem for transmission of modulated information signals over power supply lines
A telecommunication system for transmission along power supply lines of modulated information signals having a selected carrier frequency. The system includes a plurality of communication devices...
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5880677 |
System for monitoring and controlling electrical consumption, including transceiver communicator control apparatus and alternating current control apparatus
A system that monitors and controls electrical power consumption that will be retrofitted to a typical consumer electrical power arrangement (typical arrangement-electrical feed line from a...
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5485040 |
Powerline coupling network
An apparatus for reducing power line communication signal attenuation is disclosed. This apparatus provides for reduction of power line communication signal attenuation by balancing reactance...
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5374900 |
Phase window test circuit
The present invention provides a method and an apparatus for controlling and measuring the phase window of a data separator that is suitable for implementation in an automatic test equipment (ATE)...
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5241283 |
Drive amplifier for power line communications
A power line communication amplifier circuit for providing a signal transmission across a power line medium when operating in a transmit mode, and for providing a relatively high input impedance to...
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5198796 |
Outbound signal detector system and method
In a communication system in which outbound information in the form of multi-bit messages is carried by cyclic waveforms over an electric power distribution network, the signal is detected...
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5029064 |
Phase-controlled reversible power conversion with equal duty cycle substantially constant amplitude square wave excitation of the power transformer
A universal phase-controlled reversible power converter having one transformer with multiple windings couples a d.c. voltage to an associated transformer winding through a fixed port having...
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5023477 |
Transient energy self-pumped conjugator and method
Self-pumped phase conjugation is achieved for optical beams with very short pulse durations by a transient energy transfer mechanism. A probe beam is transmitted through a non-linear optical...
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5013974 |
Electronic ballast with improved lamp current crest factor
An inverter-type electronic fluorescent lamp ballast powers a fluorescent lamp with a sinusoidal current that is modified by insertion of a measured amount of properly phased third harmonic...
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4988972 |
Method for transmitting and receiving signals over transmission power lines
A transmission signal sending and receiving method using the steps of setting the reference channel and data channels in each cycle of the AC voltage wave for transmission in the sending and...
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