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8179056 System and method for remote control lighting  
Remote lighting control methods, devices and systems are disclosed. One embodiment of the present invention pertains to a light device. The light device includes a light source for emitting light...
8179250 Power management interface  
A power management interface is provided and includes a switch, a transmitting circuit, and a receiving circuit. The switch is coupled to an AC power line for controlling a power line signal to a...
8151823 Fluid power valve arrangement with at least one solenoid valve  
A fluid power valve arrangement with at least one solenoid valve whose solenoid is connected or able to be connected via only two control lines with an electrical control and/or communication...
8130084 Fault tolerant closed system control using power line communication  
A method, system, and computer program product are provided for communicating to a powered element in a rack system. A controller injects communication data onto power lines that provides power to...
8115605 Power line communications device in which physical communications protocol layer operation is dynamically selectable  
A power line communications PLC transmitter and receiver device includes a physical communications protocol layer that provides for dynamic selection of a communications signal transmission...
8077027 System and method for analyzing faulty event transmissions  
A system and method are disclosed for recording and evaluating faults in event transmissions between security system components. A panel in a monitored building may send event signals to a receiver...
8018331 Multilevel inverter using cascade configuration and control method thereof  
A multilevel inverter using a cascade configuration with a device for equally controlling a power factor for each unit cell includes: a master controller, a plurality of power cells connected in...
7970374 Multi-wideband communications over power lines  
Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or...
7961090 Method and system for controlling LED with power line carrier  
A method and a system for controlling LED with power line carrier are disclosed. The system contains a host controller, an electric power conductor, and at least a luminous device, and the luminous...
7952482 Surface acoustic wave coding for orthogonal frequency coded devices  
Methods and systems for coding SAW OFC devices to mitigate code collisions in a wireless multi-tag system. Each device producing plural stepped frequencies as an OFC signal with a chip offset delay...
7899436 Multi-wideband communications over power lines  
Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or...
7898406 Powered device with priority indicator  
A method for communicating settable priority data from a powered device being powered over communication cabling to power sourcing equipment, the method comprising: prior to connecting power to...
7890117 Automatic remote communication using network telephony  
The present invention is a method and apparatus to provide remote communication using network telephony. In a transmitter, an activation message is decoded to generate an activation command. The...
7877078 Power line communication networks and methods employing multiple widebands  
Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or...
7825822 System and method for extracting and conveying modulated AC signal information  
An economical system and method for extracting amplitude and frequency information from a modulated AC signal are provided. In one embodiment, the invention includes a circuitry implementing op...
7791468 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...
7764727 Selecting MCS in a MIMO system  
An accurate total error rate performance can be measured using a computed error vector magnitude (EVM) per stream. Using this EVM, the receiver or the transmitter can advantageously generate an...
7741960 Vehicle communication method and apparatus  
An apparatus and method for binary communication between a vehicle and a trailer transmits high voltage and low voltage signals detectable as high bits and low bits aggregated into messages. A...
7724831 Method and apparatus for detection of load impedance modulation in a transformer circuit  
A method and apparatus for detection of load impedance modulation as a result of communication of data from the secondary to the primary side of a transformer are presented. The load impedance on...
7675408 Power line communication system, device and method  
A signal is received from a first portion of a power line via a connection to the power line and at least a portion of the signal is converted to a non-electrically conducting signal. The...
7656285 Method and apparatus for communicating the existence of an emergency situation without uniquely identifying the source of the communication  
A system in which one or more alarm sources (10), can wirelessly communicate with a receiver (30), to activate an alarm and does not contain any identification that indicates the communication's...
7656289 Apparatus for monitoring an inside of a manhole  
An apparatus for monitoring an inside of a manhole in which the inside of the manhole is monitored using a simple communication and power supply unit is closed. The apparatus comprises power cables...
7626497 Power line communication vegetation management system and method  
A system for detecting the contact of vegetation or other objects with a power line conductor and that may provide an automated notification thereof is provided. In one embodiment, the system may...
7579944 Information provision system and terminal for same and program for same  
An information provision system of the present disclosure stores a current vehicle condition and a normal unattended condition of the vehicle as relevant information in a driver's unit, when a...
7529300 Shaped-offset quadrature amplitude modulation methods and apparatus  
Shaped Offset Quadrature Amplitude Modulation (QAM) can be implemented within a communication system. A train or sequence of orthogonal sinc pulses can be generated for each of the in-phase and...
7518487 Power line communication system  
Communication apparatus, comprising: a network of power lines; and first, second and third transceivers, coupled to the network, the first transceiver being adapted to transmit a first signal over...
7498934 Power supply and useful data exchange between a fire alarm control unit and a current sink  
A method, system and circuit arrangement exchange data and supply power to at least one current sink connected via at least one data line pair to a fire alarm control unit. A pulsed voltage is used...
7382232 Power line communications device and method of use  
A device and method for providing power line communications via an underground residential distribution power system is provided. One embodiment of the present invention includes a power line...
7366773 Alternative communications paths for data sent over power line carrier  
Extensions to the concept of using a power line carrier to convey a data record from the secondary side of a first transformer to a receiver in a power distribution substation include receiving the...
7327222 Transmission system for transmitting data via current conducting branches  
A system and method for transmitting and receiving data between a power supply and a remotely located load, by use of standard data communication cable has functional data transmitted via the power...
7319384 Communication apparatus and communication method  
A communication apparatus includes a transmission signal generation section 1, a transmission signal control section 2, a transmission section 3, a leakage electric power detection section 4, and...
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....
7248178 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...
7199706 PLC intercom/monitor  
A digital intercom device consistent with certain embodiments uses power line communication (PLC). A power line interface connects to a power line serving as a communication medium. An audio codec...
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...
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...
7170405 Method and apparatus for interfacing a power line carrier and an appliance  
A method and apparatus for communicating between an appliance and a power line carrier communication system includes at least one power line carrier connection, at least one appliance connection,...
7167089 Burglar alarm using power cord to transmit signals and method for controlling the same  
A burglar alarm includes a main unit provided with a power supply voltage regulator circuit, a CPU circuit, an FET driving circuit, and an RLC oscillation circuit to convert digital code signals...
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....
7129820 Door station apparatus with electric lock  
The respective sections between a power source unit 4 and a room master station 1, between the room master station 1 and an entrance door station 2, and between the entrance door station 2 and an...
7123140 Network for remote administration of street lighting inter alia and methods to carry out said administration  
A wireless network for remotely controlling at least one lamp includes a first radio transceiver associated with the at least one lamp and a second radio transceiver. The first radio transceiver...
7113075 Power supply methods and apparatus  
A detection circuit includes a first power line, a first signal conditioning module operationally coupled to the first power line, a neutral line (N) operationally coupled to the first signal...
7053765 Active security system  
A system and method is disclosed for actively maintaining security of a premises. The method can include the operation of establishing a data link between a local security controller within the...
7030761 Multi-resolution object location system and method  
A multi-resolution object location system and method for locating objects is provided. The multi-resolution system and method uses a long-range object locator together with a more precise RFID...
7026947 Building emergency path finding systems and method  
Signals from a plurality of detectors are evaluated to establish an ingress or an egress path or paths to and from a region. Where the detectors indicate flame or smoke concentrations, the ingress...
7012505 Method and system for communication on a power distribution line  
A method and system of communicating on an active power distribution line using numerous asynchronous data transmitters. Data is modulated onto 5 KHz carrier signals of narrow bandwidth whose...
6906638 Sensor unit  
A sensor unit (9) for measuring a process magnitude and for producing a digital signal representative of the process magnitude exhibits an interface (3) for transmitting the digital signal in a...
6901336 Method and apparatus for supplying power, and channeling analog measurement and communication signals over single pair of wires  
A novel technique for transferring power, measurement signals, and communication signals between two electrical devices over a single wire pair is presented. A host device supplies power to a...
6831551 Method and system for modulating a carrier frequency to support nondestructive bitwise arbitration of a communication medium  
A system for modulating a carrier frequency to support nondestructive bitwise arbitration of a communication medium. The system comprises a first sensor module coupled to a power supply line via a...
6822555 Fire system implemented with power line communications  
An electric power line communication system operates with an electric power distribution system to provide through premises power distribution lines highly reliable communication links among...
Matches 1 - 50 out of 130 1 2 3 >