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7307510 Power meter bypass device and method for a power line communications system  
A passive bypass device for providing a data path around a power meter is provided. The device may be communicatively connected to two low voltage power line energized conductors on a first and a...
7304567 Method and apparatus for communicating control and other information over a power bus  
An information signal to be communicated to a roof-mounted light bar or other electrical or electronic device travels over the vehicle's or other environment's power bus or other power conductor....
7301440 Power line communication system and method  
The present invention provides a device for providing communications through power lines comprised of multiple conductors by transmitting the data signals through a plurality of the conductors. One...
7268670 Power line communications system  
A power line communications technique (PLC) is disclosed which allows communications across any three phase electric system by modulating the impedance through earth between any two points of...
7265654 Powerline pulse position modulated transmitter apparatus and method  
A transmitting controller is connected to a powerline and on command places a reference signal and a series of signal pulses in the powerline at a series of signal timing positions related to zero...
7250848 Power line communication apparatus and method of using the same  
The present invention provides a communication device for use with a power line communication system. One embodiment of the present invention forms a bypass device and comprises a LV coupler, a LV...
7245625 Network-to-network adaptor for power line communications  
A portable, pluggable power line communications device provides convenient interfacing and connectivity between separate data networks interconnected over the same conventional electric power...
7236086 Power converter configuration, control, and construction  
A transformer having galvanically isolated windings defines a primary side and a secondary side of a power conversion apparatus. A switch couples power from a source on the primary side via the...
7212590 Turbocoder with facilitated synchronization  
The invention concerns a data transmission device comprising a turbo coder ( 22 ) comprising an interleaver operating on two interleaving blocks and means ( 26 ) for producing symbols from said...
7206417 Wireless digital transmission system for loudspeakers  
This invention relates to a wireless digital transmission system for loudspeakers comprising: compression means for the file representing the digital audio signal of the “compact disc”...
7199699 Facilitating communication with power line communication devices  
The invention includes a method, system, and device for communicating a data signal with a low voltage premise network. The inventive method comprises communicating the data signal with the low...
7194528 Method and apparatus for processing inbound data within a powerline based communication system  
A powerline based communication system includes a powerline termination module, a plurality of powerline gateways, and a plurality of powerline nodes. The powerline termination module manages data...
7170394 Remote current sensing and communication over single pair of power feed wires  
Disclosed is a novel technique for transferring power and signals between two electrical devices over a single wire pair. In particular, a remote sensor is connected to a host device. Power to the...
7154381 System and method for operating a sensed power device over data wiring  
According to the present invention, a power source delivers power to a networked device over network cabling (e.g., Ethernet cabling) in one of two modes: a low power mode and a high power mode....
7148788 Method for transmitting high-frequency signals to low-frequency networks and corresponding system  
It is a known fact that even information signals in the kilohertz and megahertz range can be transmitted via the bus systems of power transmission networks. The invention provides a method and a...
7145439 Powered device interface circuit  
A method for communicating multi-bit data from a powered device being powered over communication cabling to power sourcing equipment, the method comprising: exhibiting a signature indicative of a...
7132958 Downhole telemetry system using multiple uplink modes as data channels using discrete multi-tone modulation  
A method and a downhole telemetry system a downhole telemetry system using discrete multitone modulation for transmitting a data stream over a plurality of transmission modes is provided. The...
7106178 Modulating the electric field of a power transmission line  
A system and method for transmitting data on a power transmission line transmits power in the form of time-varying voltage and current. Data is transmitted by using micro electromagnetic pulses to...
7084742 System and method for transmitting control information over an AC power network  
Disclosed is a transmission system for transmitting digital information via a power supply network. In one embodiment, there is a transmission device which comprises a generator for generating a...
7068150 UPS signaling state  
A system receives AC power from an Uninterruptable Power Supply (UPS) on an AC power cable. The AC power cable couples a primary AC line voltage or a switched secondary AC line voltage depending on...
7046124 Power line coupling device and method of using the same  
The coupler of the present invention couples broadband RF signals to and from a power line conductor. The coupler of one embodiment that is for use with overhead power lines includes a length of...
7042339 Plug-in single phase power line signal repeater with low voltage bus  
A control system and method suppress noise in a power-line-based system which has a device repeater connected to an electrical device, and which may be capable of remote control by signals...
7034662 Multi-function integrated automation cable system and method  
The present technique relates to the distribution of power and data signals throughout a networked system. For example, three-phase power may be conducted to a device over a set of conductors. One...
7030734 Verification of proper coupling of power line communication units to power circuits  
Verifying that power line communication units ( 106 ) are properly coupled to power circuits ( 104 ) is disclosed. Each of a number of communication units ( 106 ) is coupled to one of one or more...
6998963 Endpoint receiver system  
An endpoint is configured for communication with a distribution substation. The endpoint includes a receiver conditioning block and a receiver processing block. The receiver conditioning block is...
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...
6987444 Power line communications method  
A method of communicating over a power line is disclosed, the method comprising the step of modulating a current component of an AC power signal present on the power line. Also disclosed is a...
6975211 Control apparatus and control method for managing communications between multiple electrical appliances through a household power line network  
The present invention relates to a control apparatus for managing communications between a plurality of electric appliances connected to a household power line network. The apparatus transmits a...
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...
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...
6950010 Method, system and apparatuses for the transmission of data on electric network  
Method and system for transmitting/receiving or communicating data and information on electric power line between two electronic controlled devices, namely, and electric user (HA), in particular a...
6943669 Method for transmitting data from at least one sensor to a control unit  
A method for transmitting data from at least one sensor to a control unit via an appropriate two-wire line is described. The method is used to identify any sensor at the control unit and to...
6943668 Apparatus and method for reconfiguring a power line communication system  
A geometric harmonic modulation (GHM) communication system communicates GHM signals on a power line of a reconfigurable network. The GHM communication system includes a master controller connected...
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...
6911900 System and method for electronically signalling along a fence line  
A system for electronically signalling along a fence line, comprising one or more transmitter device(s) for connection to the fence line from which control signals or information may be sent along...
6859669 Apparatus and method of controlling activation of home automation system  
An apparatus controlling activation of a home automation system to prevent electric home appliances from being simultaneously activated. The activation control apparatus has an activation control...
6844809 Passive optical network backhaul for powerline communications  
System, apparatus and method for connecting a passive optical network (“PON”) to a power line communications (“PLC”) network using a PLC HeadEnd installed at the PON to provide for...
6798338 RF communication with downhole equipment  
Data or control signals are communicated over a three phase power cable supplying power from a surface location to a motor/pump assembly located within a wellbore utilizing modulated radio...
6775596 Information processing system, information processing apparatus and method, recording medium, and program  
A simple, safe domestic network for electric appliances in which data is sent by modulating the voltage or current signals of power supply and corrections are made in response to electric...
6766221 Two-wire controlling and monitoring system for irrigation of localized areas of soil  
A two-wire controlling and monitoring system for in particular irrigation of localized areas of soil according to a aspect of the invention comprises a water pipeline, a first plurality of...
6759946 Home appliances network  
A network enables remote users to communicate with, and to control a variety of devices whose only electrical connection is to a power line network. In hybrid networks, communications between...
6750781 Appliance control system utilizing bidirectional power line communications  
A control system for controlling operations of a plurality of electric appliances in distributed arrangements. Each of a plurality of controllers is connected between the power line and respective...
6737984 Automatic meter reading system using locally communicating utility meters  
A low cost frequency shift keying communications system for communication between utility meters within a local area network and for communication with a central database. Transmitters coupled to...
6734784 Zero crossing based powerline pulse position modulated communication system  
A transmitting controller is connected to an AC powerline and on command places a series of signal pulse in the powerline in a series of signal timing windows related to zero voltage crossing...
6731201 Communications module and system  
A communications module adapted to be received by an appliance having an appliance controller is provided. The module includes a communications protocol translator. The communications protocol...
6686832 High frequency network multiplexed communications over various lines  
An improved apparatus for high frequency multiplexed electrical line communication for cable TV, telephone, internet, security and other control applications over the mid and low voltage power...
6674806 Transmitting and receiving system for digital communication on electric power-lines  
A transmitting and receiving system for digital communication on electric power-lines comprises a transmitting device and a receiving device. The transmitting device consists of an input terminal,...
6633228 Communication system for simultaneous two-channel transmission of data between subscribers  
A communication system having at least two communication subscribers unidirectionally or bidirectionally exchanging data that are electrically connected to one another via at least one network...
6597137 Method and device for transmitting and receiving a control signal to a vehicle  
The invention relates to a method for transmitting a control signal to a vehicle which is driven using an electrical drive current which is fed into a traction current conductor at a drive current...
6592081 Electronic code generating circuit for use in railroad signaling systems  
An electronic code transmitter is disclosed for driving a number of code following relays of a railroad signaling system. The electronic code transmitter comprises a timing circuit and a driving...
Matches 1 - 50 out of 320 1 2 3 4 5 6 7 >