Abstract: A current sensing system including a carrier strip, the carrier strip disposed so as to be associated with a current carrying conductor, wherein when an electrical current flows through the conductor, the electrical current flowing through the conductor creates a magnetic field having a magnetic flux, wherein the magnetic flux is responsive to the electrical current flow, a Hall effect sensor disposed relative to the carrier strip such that the Hall effect sensor is communicated with the magnetic field, wherein the Hall effect sensor generates an electrical signal responsive to the magnetic flux and a metering device in communication with the Hall effect sensor, wherein the metering device processes the electrical signal so as to create a processed signal responsive to the electrical current flow.

Abstract: A method and system for monitoring and controlling a power distribution system is provided. The system includes a plurality of circuit breakers and a plurality of node electronic units. Each node electronic unit is mounted remotely from an associated circuit breaker that is electrically coupled with one of the node electronic units. The system also includes a first digital network, and a first central control unit. The first central control unit and the plurality of node electronic units are communicatively coupled to the first digital network. The method includes receiving digital signals from each node electronic unit at the central control unit, determining an operational state of the power distribution system from the digital signal, and transmitting digital signals to the plurality of node electronic units such that the circuit breakers are operable from the first central control unit.

Abstract: A distributed receiver system for communicating transmitted reference ultra wideband communications signals includes a receiver front end downconverter having a correlator for producing ultra wideband pulses from the transmitted reference ultra wideband communications signals. A digitizer is connected to the receiver front end downconverter for receiving and digitizing the ultra wideband pulses. A high bandwidth cable is connected to the digitizer for receiving the digitized ultra wideband pulses. A centralized digital processing module is connected to the high bandwidth cable for interpreting the digitized ultra wideband pulses.

Abstract: Appliances (102, 102, 106 and 108) are controlled by providing a source (2016, 112) of command fields (CMD, FIG. 2) that include a context subfield (Community, FIG. 4) defining operating modes and a command subfield (Command, FIG. 4) defining operations to be performed within the context subfield. A network (119) transmits the command fields between the source and the appliance. A controller (112, 116) processes the command fields so that an operation defined by one of the command subfields is performed.

Abstract: A dual transceiver enhanced bridge is provided for wirelessly radio frequency (RF) broadcasting messages received on a telephone network. The dual transceiver enhanced bridge includes a telephone subscriber loop (TSL) modem connected to the telephone network. The TSL modem is connected to a memory unit. The dual transceiver enhanced bridge also comprises an RF modem connected to the memory unit. A controller is connected to the TSL modem, the RF modem, and the memory unit to control transmission of messages from the connected devices.

Abstract: A dual transceiver enhanced bridge is provided for wirelessly radio frequency (RF) broadcasting messages received on a power line communication system. The dual transceiver enhanced bridge includes a power line carrier (PLC) modem connected to the power line by a connecting plug. The PLC modem is connected to a memory unit. The dual transceiver enhanced bridge also comprises an RF modem connected to the memory unit. A controller is connected to the PLC modem, the RF modem, and the memory unit to control transmission of messages from the connected devices.

Abstract: A method and apparatus for service diagnostics of appliances includes connecting to a local area appliance network, accessing an appliance in the local area appliance network, accessing functions of the appliance, and performing service diagnosis of the appliance using the functions. A diagnostic interface is used to diagnose and service the appliance. The local area appliance network may be a power line carrier communication carrier network. The diagnostic interface may connect to a remote system for service diagnostic information.

Abstract: A method for authenticating appliance messages sent between an appliance and an appliance communication center over an appliance communications network includes maintaining a shared message counter at both the appliance communication center. A shared message counter at both the appliance communication center and the remotely located appliance. An authentication algorithm is applied to the appliance message and the shared message counter to generate an authentication word. The appliance message is then transmitted to the appliance or the communication center along with the authentication word. Upon receiving the appliance message, the appliance or the communication center will apply an authentication algorithm to the appliance message and the shared counter to generate an authentication word. The generated authentication word may be compared to the word received with the appliance message to determine authenticity of the message.

Abstract: An integrated tracking, telemetry and local area networking system is provided. A communications system comprises a broadband subsystem comprising at least one UWB node including a first UWB transceiver and at least one application node linked to the UWB node by a broadband link. The system further comprises a wireless subsystem comprising at least one remote communicator, the remote communicator including a second UWB transceiver. The first and second UWB transceivers are configured to communicate with each other via an UWB communications link.