Abstract: Systems and methods for improving data communication over less than perfect power lines or transmission lines are described. The systems and methods allow for pushing out electrically any null within a frequency range of interest and/or for lossless transmission by providing impedance matching between communication devices and the transmission line. This is achieved by implementing line equalizing modules within the transceivers, at the transmitter side and/or the receiver side, or by plugging, as a stand-alone module, into an electrical outlet within a building. The line equalizing module includes multiple inductor-capacitor cells coupled in cascade where multiple switches allow for selective and concurrent connection between the inductor-capacitor cells. In another embodiment, the line equalizing module includes variable inductor-capacitor cells. The line equalizing module provides a variable propagation delay that allows for stretching electrically the transmission line.

Abstract: A method is provided for communicating signals at a low power level in an electromagnetic interference (EMI) environment. A first device transmits a modulated signal having a first carrier frequency, including the encoded information via a hardwire transmission medium. In one aspect, the power level of the modulated signal can be adjusted to minimize power consumption or reduce the generation of EMI. The modulated signal may be in one of the following formats: frequency modulation (FM) or phase modulation (PM) to name a few examples. A second device including a logarithmic detector amplifier (LDA) demodulator circuit receives the signal, which may be mixed with EMI. The LDA demodulator circuit amplifies the modulated signal, without amplifying the EMI, to supply a demodulated baseband signal, which may be an n-ary digital signal, or an audio signal. A low-power, noise insensitive communication channel is also provided.

Abstract: A low noise detection system is disclosed in which a modulator located in a transmitter or a receiver is configured to convert a voltage data signal to a frequency signal, to modulate a baseband signal with the voltage data, and to output the modulated data signal. The receiver further includes a log detection amplifier configured to receive the modulated data signal and to regeneratively demodulate the modulated data signal to extract the data in an amplified analog data signal while not significantly amplifying any noise in the modulated data signal. The receiver further includes a digital conversion circuit for converting the amplified analog signal into a digital data signal.

Abstract: An in-medium monitoring system for monitoring material carried within a pipe. The system includes an acoustic device installed within the pipe that generates voltage signals indicative of changes in the material, such as flow rate or leaks, a hardware unit that includes a detector module and a communication module, a switch for switching the voltage signals to and communication signals from the hardware unit. The hardware unit and a power source are attached to the pipe. The acoustic device may be detector or a sensor. The communication module may communicate date through the sensor in the medium or outside of the pipe to a fixed network. The hardware unit may include a log detection amplifier for generating an amplified pulsed output signal without voltage gain and without significantly adding noise.

Abstract: Methods and apparatus for power factor correction include selectively coupling bit reactive loads with a load having dynamic reactive properties to dynamically correct a power factor. Methods and apparatus for reducing distortion in a power delivery system include a means for determining distortion in a power line, forming a corrective signal according to the distortion and selectively sinking and sourcing current to the power line according to the corrective signal. Furthermore, power for a solar power system is injected into a load via the same apparatus.

Abstract: A computer-implemented method for optimizing communication performance based on antenna polarization, comprising transmitting a data stream to a client device using at least one antenna structure having one or more antenna polarization, determining a need to adjust antenna polarization, selecting an antenna from the at least one antenna structure, determining an antenna polarization adjustment based on a level of communication performance of the at least one antenna structure, and dynamically making the antenna polarization adjustment for the data stream being transmitted using the selected antenna.

Abstract: A circuit board panel includes a plurality of circuit boards (PCB). One or more antenna boards (615) are formed in spare areas about the plurality of circuit boards (PCB). Antenna boards may also be coupled to circuitry on the circuit boards in a detachable manner.

Abstract: Methods and apparatus for power factor correction include selectively coupling bit reactive loads with a load having dynamic reactive properties to dynamically correct a power factor. Methods and apparatus for reducing distortion in a power delivery system include a means for determining distortion in a power line, forming a corrective signal according to the distortion and selectively sinking and sourcing current to the power line according to the corrective signal.

Abstract: Devices and methods for identifying an electrical device, and its state, in a network of electrical devices are disclosed. An energy monitoring device is programmed to identify an electrical device coupled to a power supply, and a state of the electrical device, from a change in successive measurements of the power supply. Algorithms for determining a load signature for an electrical device and its state are disclosed. A stored table of load signatures for states is used to identify devices, and states. Energy monitoring information is collected and presented to the user on a display, a remote display, or is transmitted over a network to a remote device such as a personal computer, personal digital assistant, an iPhone, a cell phone, voice mail, email, or text message.

Abstract: Devices and methods for identifying an electrical device, and its state, in a network of electrical devices are disclosed. An energy monitoring device is programmed to identify an electrical device coupled to a power supply, and a state of the electrical device, from a change in successive measurements of the power supply. Algorithms for determining a load signature for an electrical device and its state are disclosed. A stored table of load signatures for states is used to identify devices, and states. Energy monitoring information is collected and presented to the user on a display, a remote display, or is transmitted over a network to a remote device such as a personal computer, personal digital assistant, an iPhone®, a cell phone, voice mail, email, or text message.

Abstract: Methods and apparatus for power factor correction include selectively coupling bit reactive loads with a load having dynamic reactive properties to dynamically correct a power factor. Methods and apparatus for reducing distortion in a power delivery system include a means for determining distortion in a power line, forming a corrective signal according to the distortion and selectively sinking and sourcing current to the power line according to the corrective signal. Furthermore, power for a solar power system is injected into a load via the same apparatus.

Abstract: Methods and apparatus for power factor correction include selectively coupling bit reactive loads with a load having dynamic reactive properties to dynamically correct a power factor. Methods and apparatus for reducing distortion in a power delivery system include a means for determining distortion in a power line, forming a corrective signal according to the distortion and selectively sinking and sourcing current to the power line according to the corrective signal.

Abstract: Devices and methods for identifying an electrical device, and its state, in a network of electrical devices are disclosed. An energy monitoring device is programmed to identify an electrical device coupled to a power supply, and a state of the electrical device, from a change in successive measurements of the power supply. Algorithms for determining a load signature for an electrical device and its state are disclosed. A stored table of load signatures for states is used to identify devices, and states. Energy monitoring information is collected and presented to the user on a display, a remote display, or is transmitted over a network to a remote device such as a personal computer, personal digital assistant, an iPhone, a cell phone, voice mail, email, or text message.

Abstract: An embodiment of the invention is directed to a network peripheral device. The network peripheral device includes a plurality of antennas, network communications electronics operable with the antennas, a plurality of electronically controllable visual indicators, and circuitry that activates the selected indicators. The network peripheral device may also include networking electronics, router functionality, a modem, a base band processor, a firewall, and/or a media access control (MAC) processor. The visual indicators may comprise light emitting diodes (LEDs). The visual indicators may correspond to a particular antenna. The visual indicators may also be arranged in a pattern corresponding to an arrangement of antennas in the plurality of antennas, or in a substantially circular pattern. Other embodiments of the invention are directed to various methods and devices.

Abstract: An embodiment of the invention is directed to a network peripheral device. The network peripheral device includes a plurality of antennas, network communications electronics operable with the antennas, a plurality of electronically controllable visual indicators, and circuitry that activates the selected indicators. The network peripheral device may also include networking electronics, router functionality, a modem, a base band processor, a firewall, and/or a media access control (MAC) processor. The visual indicators may comprise light emitting diodes (LEDs). The visual indicators may correspond to a particular antenna. The visual indicators may also be arranged in a pattern corresponding to an arrangement of antennas in the plurality of antennas, or in a substantially circular pattern. Other embodiments of the invention are directed to various methods and devices.

Abstract: An embodiment of the invention is directed to a network peripheral device. The network peripheral device includes a plurality of antennas, network communications electronics operable with the antennas, a plurality of electronically controllable visual indicators, and circuitry that activates the selected indicators. The network peripheral device may also include networking electronics, router functionality, a modem, a base band processor, a firewall, and/or a media access control (MAC) processor. The visual indicators may comprise light emitting diodes (LEDs). The visual indicators may correspond to a particular antenna. The visual indicators may also be arranged in a pattern corresponding to an arrangement of antennas in the plurality of antennas, or in a substantially circular pattern. Other embodiments of the invention are directed to various methods and devices.

Abstract: An embodiment of the invention is directed to a method involving a client device and a computer network peripheral device. An embodiment is disclosed including transmitting data within the computer network, receiving content from among the transmitted data, determining an aspect of streamed content, and controlling a visual user output on the peripheral device, based on the determined aspect of the content, and streaming the content to the client device. The client device may comprise at least one of the devices selected from the following: a personal computer, a media player, a game station, a television, a monitor, a high-definition television (HDTV), a wireless access point (AP) client, a wireless satellite receiver, or a personal video recorder. The computer network peripheral device may comprise a router, a modem, or a firewall. Other embodiments are directed to other methods as well as various devices.

Abstract: Disclosed is a wireless node with a detachable antenna. When the antenna is detached, 802.11a lower band communications are disabled. When the antenna is attached, 802.11a lower band communications are enabled.

Abstract: Disclosed is a wireless node with antenna detachability. Various wireless node configurations allow the 802.11a antenna element and/or the 802.11b/g element to be detached from the base unit.