Matches 101 - 150 out of 217 < 1 2 3 4 5 >
Match Document Document Title
6097280 Fault locator that uses positive-phase-sequence electricity  
A fault locator of a parallel transmission line includes a data receiving unit that receives the transmission and the received signal of each current differential relay provided with the...
6091320 Automated home control using existing electrical lines as a communications medium  
A home control system as described herein uses existing electrical power lines in a home for communications. A system includes one or more analog signal sources connected to transmit analog signals...
6064297 Message authentication and key synchronization in home control systems  
Described herein is a system for communicating over electrical wiring in a house or other building. Components are grouped and each group is assigned a group identifier code. Components...
6052050 Two-wire signal transmitter and method for maintaining integrity of electrical contacts  
Two-wire signal transmitter and method in which a very low-level Alternating Circuit (AC) input signal sensed at a remote circuit at a first end of a signal path is added to a low-level Direct...
6040759 Communication system for providing broadband data services using a high-voltage cable of a power system  
A communication system is disclosed for providing broadband multimedia services using one or more high-voltage cables of a power distribution network, while the power distribution network is...
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...
5971598 Wireless remote controlled tanning system  
A tanning system (14) is disclosed which allows a single centrally located control unit (10) to control a number of remote tanning beds. Each tanning bed is provided with a remote unit (12)...
5949327 Coupling of telecommunications signals to a balanced power distribution network  
The present invention provides an overhead balanced electricity distribution and/or power transmission network (1201), the network including input means (1301) for the input onto the network of a...
5933073 Apparatus and methods for power network coupling  
Methods and apparatus for establishing communications between electrical and electronic devices utilizing existing power signal distribution networks are disclosed. In such methods and apparatus...
5920253 Local area method arrangement  
A local area network arrangement is taught for implementing a control system. The local area network arrangement includes a low-voltage bus composed of a cable pair, functioning as a common...
5910776 Method and apparatus for identifying locating or monitoring equipment or other objects  
A method and apparatus for identifying, locating, and monitoring equipment or other objects is described wherein a radio frequency identification transponder (RFID) is housed on, around, or within...
5905442 Method and apparatus for controlling and determining the status of electrical devices from remote locations  
Apparatus for controlling an electrical device by remote control including a control device coupled to the electrical device by a wire connection for providing power to the electrical device, the...
5903607 Method and device for encoding and transmitting bidirectional data from a master circuit to a slave circuit  
A method and device for encoding and transmitting a clock signal, a supply voltage and bidirectional digital data from a master circuit to a slave circuit, including the steps of: holding a first...
5903064 Distribution network and method and device for regulating electric current from the network  
The present invention relates to a distribution network comprising electric wires (5) for distribution of electric current, a plurality of tap-off facilities (6) with at least one socket (9) for...
5898361 Serial data communication device of air conditioner  
A serial data communication device of an air conditioner including: an outdoor microprocessor having data transmitting/receiving terminals which transmit/receive a predetermined data; an indoor...
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...
5866956 Apparatus for and method of monitoring and controlling a power system  
A apparatus for monitoring and controlling a power system having an alternating current bus. The apparatus includes a module which is coupled to the bus and which digitizes and modulates at least...
5838226 Communication protocol for transmission system for controlling and determining the status of electrical devices from remote locations  
A communication protocol for a two way transmission system having at least one first transmitter/receiver device, at least one second transmitter/receiver device and at least one repeater for...
5821876 Communication interface for bus connected circuit breakers  
The present invention provides a circuit breaker control arrangement that is reliable, accurate and cost-effective to manufacture, install and maintain. This circuit breaker arrangement also...
5822012 Home automation apparatus using a digital television receiver  
A home automation apparatus using a digital television receiver for use in a building is provided. In particular, the apparatus contains a signal processor, a memory unit, a microprocessing unit, a...
5818821 Universal lan power line carrier repeater system and method  
A universal local area network power line carrier repeater system and method provides: 1) LAN interfaces for converting high speed LAN data to high speed PLC data and high speed PLC data to high...
5805053 Appliance adapted for power line communications  
An electrical appliance in which a power line adapter unit is embodied by which information signals are conducted to and from a power line from and to the appliance along the same connection to the...
5777545 Remote control apparatus for power line communications system  
Remote control apparatus for a power line communications system in which control signals are transmitted, via the power line to, from the location of utilization equipment to a control unit located...
5742225 Arrangement for signal transmission between a transmitting station and a receiving station  
A transmitting station is connected to a receiving station by a two-wire line via which the supply current required for operating the transmitting station is transferred from the receiving station...
5694109 Two-wire dc communication system and transceiver  
Arrangement for dc signaling between a transmitter or transceiver over a single pair of conductors to another transceiver or receiver of similar design. The conductors carry a dc communications...
5689230 Energy monitoring and control system using reverse transmission on AC line  
An energy monitoring and control system (10) for use with a conventional AC source (12) having a hot wire and a neutral wire (28). The energy monitoring and control system (10) includes a control...
5684826 RS-485 multipoint power line modem  
A modem enabling multi-point networks to be established over power lines emulating the RS-485 electrical interface standard for data transmissions. The modem includes a data terminal interface unit...
5684449 Compatible interface for domestic industrial and professional devices control  
A compatible interface for an installation to control household machines that comprises an omnibus line having at least two first line wires used for a supply current, information signals being...
5684451 Communication system and method  
The present invention relates to a circuit which is connected by two conductors to a control system for a variable analog DC input and that also enables bidirectional digital communication along...
5642101 Control apparatus for use in a dwelling  
A controller that operates using two different processors is provided. Each processor performs certain predetermined functions. A control processor is responsible for switching AC power...
5614811 Power line control system  
The present invention provides a system and a method for controlling electrical devices connected to an AC power line by means of control signals transmitted over the AC power line. The control...
5600310 Serial bus control for appliances  
A household appliance having a serial bus control system includes a system controller, a plurality of slave nodes, and a serial bus connector. Each slave node is a sensor, an actuator, or the like,...
5589813 Data communication system of the field bus type with a twin lead for power supply to connect units and for data transmission between the units  
A field bus data communications system in accordance with the invention includes a twin lead cable; a plurality of electronic units connected to the twin lead cable with each electronic unit...
5546467 Active noise attenuated DSP Unit  
An active noise control system for controlling multiple home appliances and including a power distribution network by which many appliances can be quieted by remotely processing noise signal...
5528215 Building automation system having expansion modules  
A building automation system is disclosed which enables reliable operation and cost effective expansion. The system utilizes pairs of complementary modules, one of which is a primary module that is...
5495406 Load control system  
An improved luminaire load control system for handling control signals as by converting them into power line carrier communication signals which are transmitted through branch power lines to...
5491463 Power line communication system  
A power line communication system. The system includes at least one transmitter for generating and transmitting signals over a power line and at least one receiver for the receipt of signals...
5489897 Power control monitoring system for underwater cable communications systems  
In a power control monitoring system for monitoring a power feed for a cable communications system including n cable landing stations where n is an integer, a network connects m cable landing...
5486805 Method of receiving unsolicited messages on an electrical distribution network communications system  
A two-way communication system (TWACS) used with an electrical power distribution network N. The TWACS provides both outbound and inbound messages to and from remote network locations. A method of...
5481249 Bidirectional communication apparatus for transmitting/receiving information by wireless communication or through a power line  
Full duplex communication is attained by using only one communication channel in wireless communication between a host computer 1 and a printer 6. The communication from the host computer 1 to the...
5471190 Method and apparatus for resource allocation in a communication network system  
A control communication network system adapted for distributed control and communication between various home electrical appliances in a manner that eliminates the need for a central controller and...
5457689 High speed polling protocol for multiple node network with sequential flooding of a polling message and a poll-answering message  
The invention is a multiple interconnected network of intelligent message-repeating remote nodes which employs a remote node polling process performed by a master node by transmitting a polling...
5448231 Method and apparatus for transmitting signals on a transmission line  
The present invention provides a method and apparatus for transmitting signals on a transmission line, the transmission line having a DC current flowing therethrough and having a plurality of...
5448477 Systems for input and output of data to a well tool  
System for the input and output of data on a two wire system with a downhole well tool which has a system with sensor devices, a processor, a clock, a memory and a voltage/current communications...
5448230 Remote data acquisition and communication system  
A remote data acquisition and communication system includes a plurality of collector devices including a radio transmitter, optionally a plurality of concentrator devices including a radio...
5430430 Method of managing electric power on the basis of tariff schedules, in a network within a dwelling or the like  
The invention relates to a method allowing the management of electric power on the basis of the tariff schedules in force in a network (20) within a dwelling. The method according to the invention...
5424710 Power coupler for coupling power from a transmission line to a node thereon  
A node power isolator for connecting a node of a two conductor transmission line network such as a twisted pair line to the network so as to enable the DC powering of the node from the network...
5416777 High speed polling protocol for multiple node network  
The invention is a multiple interconnected network of intelligent message-repeating remote nodes which employs a remote node polling process performed by a master node by transmitting a polling...
5410292 Method and system for communicating information within a dwelling or a property  
A method for communicating information and commands within a dwelling or a property between several items of electrical equipment connected to an electrical distribution circuit equipping the...
5406249 Method and structure for coupling power-line carrier current signals using common-mode coupling  
An apparatus and a method for communicating data among transceivers in an electrical utility distribution system where a signal path between the transceivers includes multiple power distribution...
Matches 101 - 150 out of 217 < 1 2 3 4 5 >