Different Frequencies Or Phase Patents (Class 307/3)
  • Patent number: 10352984
    Abstract: A method of locating a fault on an electricity transmission line is disclosed. The transmission line has a known line impedance and is operable to transport electricity at one or more system frequencies. The method comprises using measurements of the current and voltage made on the line at one or more frequencies which are different to the system frequency and the known line impedance (Z) to determine a distance to the fault. The method may include monitoring the voltage and the current on the transmission line at the one or more non-system frequencies, and determining from the presence of signals at a non-system frequency on the transmission line that a fault has occurred.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: July 16, 2019
    Assignee: The University of Nottingham
    Inventors: David Thomas, Mark Sumner, Jia Ke
  • Patent number: 10271267
    Abstract: Systems and methodologies are described that facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment. For instance, relative locations of a PSC and a SSC in a radio frame can be a function of a parameter. Further, a PSC sequence utilized to generate PSCs can be selected based upon a parameter. Moreover, inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Additionally or alternatively, pseudo random sequence mappings (e.g., to cell IDs, tone locations) can be a function of a parameter. Example parameters can be whether the base station is part of a TDD or a FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or a femto cell, or whether the base station is associated with a unicast or a multicast system.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: April 23, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Durga Prasad Malladi, Juan Montojo, Peter Gaal, Sandip Sarkar
  • Patent number: 10234835
    Abstract: This document relates to management of computing devices using modulated electricity. One example includes assigning a set of time slices to a computing device for drawing electricity and subsequently causing the computing device to adjust consumption of the electricity by assigning a different set of time slices to the computing device.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: March 19, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jie Liu, Brian Janous, Gregory Joseph McKnight, Sean James, Ricardo Bianchini
  • Patent number: 10164315
    Abstract: Coupling apparatuses, circuits having such coupling apparatuses and corresponding methods are provided that involve a first and a second signal being coupled out from an out-coupling circuit part and being separately coupled into first and second circuit pmts. The use of different coupling mechanisms effects signal separation in this case. In particular, one of the signals can be coupled as a differential signal and the other as a common mode signal.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: December 25, 2018
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Johann Peter Forstner, Vadim Issakov, Saverio Trotta
  • Patent number: 10097244
    Abstract: Devices and methods for supply or receiving electric power. A power supply method may include specifying a type of a power source, specifying a power receiving capability of a power receiving device, performing collation of the specified type of the power source with the specified power receiving capability, and controlling transmission of electric power from the power source of the specified type to the power receiving device based on the collation. A power receiving method may include specifying a type of a power source, specifying a power receiving capability of a power receiving device, performing collation of the specified type of the power source with the specified power receiving capability, and controlling, based on the collation, selective conversion of electric power transmitted from the power source of the specified type to the power receiving device.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: October 9, 2018
    Assignee: Sony Corporation
    Inventors: Yoichiro Sako, Takanori Washiro, Kazuyoshi Takemura, Isao Soma, Kuniya Hayashi, Kayoko Tanaka, Taro Tadano, Satoshi Higano, Kazutoshi Serita
  • Patent number: 10009067
    Abstract: Aspects of the subject disclosure may include, for example, a system for exchanging electrical signals and guided electromagnetic waves between customer premises equipment and service provider equipment to provide uplink and/or downlink communication services. Other embodiments are disclosed.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: June 26, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Martin Birk, Paul Shala Henry
  • Patent number: 9991813
    Abstract: The invention relates to a method for the data transmission from an emitter (1) to a receiver (2) in an AC voltage network, comprising a distributor (3) and at least one user group (4) with one or several users (5), wherein the emitter (1) feeds a signal to the AC voltage network by means of a power source (6).
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: June 5, 2018
    Assignee: AIZO GROUP AG
    Inventors: Eckhard Bröckmann, Wilfried Beck, Wolfgang Kemmler, Volker Deckers
  • Patent number: 9838079
    Abstract: A load power monitoring apparatus and method use a power line communication apparatus and method. The power line communication apparatus is capable of performing power line communication through a simple circuit structure by loading a data signal on a current signal supplied over the power line. The power line communication apparatus includes a transmission unit configured to generate a data signal using the current signal, which is supplied through the power line, as a carrier wave, and to transmit the data signal through the power line, and a reception unit configured to receive the data signal, which is generated by the transmission unit, through the power line.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: December 5, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Soo Park, Young Jin Park, Sung Mok Seo, Jong Hyun Shin, Jae Won Choi
  • Patent number: 9827976
    Abstract: A non-contact power reception device includes a load such as a power storage device identified as a subject of power feeding, and a secondary self-resonant coil receiving electric power to be supplied to said load from an external primary self-resonant coil. The secondary self-resonant coil is configured so as to be switchable between a first state and a second state. The first state is selected in a power reception mode in which the secondary self-resonant coil is magnetically coupled with the primary self-resonant coil through resonance of a magnetic field. The second state is selected in a power non-reception mode in which the magnetic coupling of the secondary self-resonant coil with the primary self-resonant coil through resonance is weaker than in the first state.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: November 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shinji Ichikawa
  • Patent number: 9831759
    Abstract: A voltage source converter includes at least one limb connected between DC terminals, the or each limb including: a phase element including switching elements to interconnect a DC electrical network and an AC electrical network; an auxiliary sub-converter configured to be controllable to act as a waveform synthesizer to modify a first DC voltage presented to the DC electrical network; and a tertiary sub-converter connected in parallel with the electrical block and controllable to act as a waveform synthesizer to modify a second DC voltage presented to a DC side of the phase element, the tertiary sub-converter (39) including at least one energy storage device. The voltage source converter includes a controller configured to selectively control the or each tertiary sub-converter to synthesize at least one tertiary voltage component so as to transfer energy to or from that tertiary sub-converter and thereby regulate an energy level of that tertiary sub-converter.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: November 28, 2017
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Omar Fadhel Jasim, David Reginald Trainer
  • Patent number: 9825668
    Abstract: The present disclosure includes systems and techniques relating to power line communications (PLC) systems and apparatus. In some implementations, a method includes determining information regarding a potential data rate to be used with a powerline communications (PLC) channel, reducing a bias current or voltage of an analog front end of a PLC transceiver based on the determined information to reduce power consumption of the analog front end of the PLC transceiver, and transmitting or receiving data over the PLC channel with the reduced bias current or voltage of the analog front end of the PLC transceiver.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 21, 2017
    Assignee: MAXLINEAR ASIA SINGAPORE PRIVATE LIMITED
    Inventors: Lydi Smaini, Alexandre Rouxel
  • Patent number: 9798337
    Abstract: A control system includes a control device adapted to be connected to a live line and a neutral line that transmit a grid power, and to a load via a first power line and a second power line. The control device includes: a first switch adapted to be connected between the live line and the first power line; a second switch adapted to be connected between the neutral line and the second power line; a coupler adapted to be connected to the first power line, receiving a communication signal, and coupling the communication signal to the first power line; and a controller controlling the first and second switches to synchronously alternate between an ON state and an OFF state, and outputting the communication signal to the coupler when the first and second switches operate in the OFF state.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: October 24, 2017
    Assignee: DIWIN TECHNOLOGY CO., LTD.
    Inventor: Yu-Cheng Hung
  • Patent number: 9785213
    Abstract: Smart Appliances are defined that assist in reducing energy consumption or cost. The Smart Appliances communicate with Smart Energy sources via the power lines and in particular by injecting communications signals between the live plus neutral power lines on the one hand and the ground line on the other hand, the communications protocol allowing a power source to identify the electrical circuit to which an appliance is connected and thereby to route a selected type of power to the appliance on the correct electrical circuit for that appliance. An addressable electrical outlet is also disclosed as one form of Smart Appliance.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: October 10, 2017
    Assignee: Koolbridge Solar, Inc.
    Inventors: Paul Wilkinson Dent, Lawrence D. Zirbel
  • Patent number: 9787362
    Abstract: A transmitter path of a power line communication (PLC) device is described. In an embodiment, the transmitter path may include an amplifier, a capacitor coupled to the amplifier, a shared transformer coupled to the capacitor, and a plurality of line interface coupling circuits coupled to the shared transformer, where each of the line interface coupling circuits is configured to be connected to a different phase of an electrical power circuit.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: October 10, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Badri Varadarajan, Edward Mullins
  • Patent number: 9778711
    Abstract: A control device is provided. A first counting unit counts and generates a first output signal. When a counting value of the first counting unit is equal to a first pre-determined value, the first output signal is at a first level. When the counting value of the first counting unit is not equal to the first pre-determined value, the first output signal is at a second level. A second counting unit counts and generates a second output signal. When a counting value of the second counting unit is equal to a second pre-determined value, the second output signal is at the second level. When the counting value of the second counting unit is not equal to the second pre-determined value, the second output signal is at the first level. A determination unit generates a reset signal according to the levels of the first and second output signals.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: October 3, 2017
    Assignee: Nuvoton Technology Corporation
    Inventor: Yao-Chang Chang
  • Patent number: 9774370
    Abstract: An apparatus is provided for data communication over power lines in a PLC system. The apparatus includes a data-coupling circuit configured to provide data to the power lines for transmission. The data-coupling circuit includes a DC-isolation circuit configured to isolate circuitry of the data-coupling circuit from the power lines. The apparatus also includes a feedback circuit connected to the DC-isolation circuit. The feedback circuit has a power-tap circuit on an endpoint side of the feedback circuit. The power-tap circuit is configured to indicate/estimate of an amount of power, current, and/or voltage provided from the data-coupling circuit through the DC-isolation circuit and to the power lines. Based on the feedback the signal, the strength of a transmitted may be adjusted (e.g., to maintain constant signal strength).
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: September 26, 2017
    Assignee: Landis+Gyr Technologies, LLC
    Inventor: Damian Bonicatto
  • Patent number: 9671552
    Abstract: A few-mode fiber is described, having a graded-index core and a surrounding cladding comprising a ledge between the core and the trench, a down-doped trench abutting the ledge, and an undoped cladding region abutting the trench. The fiber's refractive index profile is configured to support 9 LP modes for transmission of a spatially-multiplexed optical signal and has optimized maximum differential group delay (MDGD) through a wide range of wavelengths.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: June 6, 2017
    Assignee: OFS FITEL, LLC
    Inventor: Yi Sun
  • Patent number: 9667320
    Abstract: A power line communication modem is provided, including a connection element configured to connect the power line communication modem to at least three wires of a power line network; a transmitter configured to transmit a first signal via a first combination of at least two wires of the at least three wires and to transmit a second signal via a second combination of at least two wires of the at least three wires; a controller adapted to individually control a transmit power of the first signal and the second signal. A corresponding power line communication system and a power line communication method are provided as well.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: May 30, 2017
    Assignee: SONY CORPORATION
    Inventors: Daniel Schneider, Andreas Schwager
  • Patent number: 9660680
    Abstract: An apparatus and method are provided for communicating over power lines. The apparatus includes a coupling modem that is situated between a power line and a device. The coupling modem is configured to demodulate a signal received from the power line into a sine signal and a cosine signal. The coupling modem is also configured to modulate a communicated bit stream received from the device into a transmitted signal in order to impose the transmitted signal onto the power line.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 23, 2017
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Michael J. Krasowski, Norman F. Prokop, Lawrence C. Greer, III, Jennifer M. Nappier
  • Patent number: 9642197
    Abstract: Disclosed is a circuit for compensating a bipolar junction transistor (BJT) base current that mirrors the BJT base current to induce a mirror current that is coupled to an emitter of the BJT to decrease an emitter current by a size of the mirror current. Also disclosed is a light-emitting diode (LED) driving apparatus including an LED array, a BJT series-coupled to the LED array, a measuring unit coupled to an emitter of the BJT to measure a current flowing into the LED array, a differential amplifier configured to differentially amplify a reference voltage and the measured current to supply a base current to a base of the BJT, and a BJT base current compensation circuit as disclosed to accurately control an LED current.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: May 2, 2017
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: Gyu Ho Lim, Jun Sik Min
  • Patent number: 9641221
    Abstract: An electrical device includes signal ports, transformers, and a differential mode device. The transformers are in communication with the signal ports, respectively. The transformers are configured to receive input signals, respectively, from the signal ports. Each transformer is configured to inject the respective input signal onto a pair of output lines of the transformer. The differential mode device is connected to a first output line of the pair of output lines of a first transformer exclusive of connection to a second output line of the first transformer. The differential mode device is configured to inject a signal from the first output line onto the pair of output lines of a second transformer. Signals from the pair of output lines of the second transformer are injected onto a pair of conductors, respectively, of a communications medium.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: May 2, 2017
    Assignee: MARVELL HISPANIA, S.L.
    Inventors: Jorge Vicente Blasco Claret, Jose Luis Gonzalez Moreno, Jose Maria Vidal Ros
  • Patent number: 9614588
    Abstract: Smart Appliances are defined that assist in reducing energy consumption or cost. The Smart Appliances communicate with Smart Energy sources via the power lines and in particular by injecting communications signals between the live plus neutral power lines on the one hand and the ground line on the other hand, the communications protocol allowing a power source to identify the electrical circuit to which an appliance is connected and thereby to route a selected type of power to the appliance on the correct electrical circuit for that appliance.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: April 4, 2017
    Assignee: Koolbridge Solar, Inc.
    Inventor: Paul Wilkinson Dent
  • Patent number: 9602161
    Abstract: A power line communication (PLC) network includes a plurality of PLC devices. One such PLC device may include a transmitter power control system that determines a minimum level of transmission power for sufficiently communicating a plurality of data packets from the PLC device over the PLC network to a first destination PLC device on the PLC network by executing a training sequence over the PLC network via an electrical power distribution system. The transmitter power control system applies this minimum level of transmission power to transmit the data packets to the first destination PLC device.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: March 21, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yanjun Sun, Minghua Fu, Xiaolin Lu
  • Patent number: 9590421
    Abstract: Dynamic power flow controllers are provided. A dynamic power flow controller may comprise a transformer and a power converter. The power converter is subject to low voltage stresses and not floated at line voltage. In addition, the power converter is rated at a fraction of the total power controlled. A dynamic power flow controller controls both the real and the reactive power flow between two AC sources having the same frequency. A dynamic power flow controller inserts a voltage with controllable magnitude and phase between two AC sources; thereby effecting control of active and reactive power flows between two AC sources.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: March 7, 2017
    Assignee: VARENTEC, INC.
    Inventors: Deepakraj M. Divan, Anish Prasai
  • Patent number: 9570938
    Abstract: An uninterruptible power supply device, and method of use thereof, including a multiple-input source AC converter for receiving an AC input voltage and a DC input voltage, an inverter including a combiner module for combining the input power sources, and an AC/AC switching transformer, the inverter being controlled by a controller to provide an output voltage signal, the controller configured to sample the input voltage signal, the switching signal current and the output voltage signal, and to control the switching transformer based thereon so as to render the output voltage signal sinusoidal.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: February 14, 2017
    Assignee: POWER OFFER ELECTRONICS LTD.
    Inventors: Ofer Zilberberg, Eli Flaxer
  • Patent number: 9444367
    Abstract: A method and apparatus for providing AC power. In one embodiment, the apparatus comprises a cycloconverter controller for determining a DC value based on a reference waveform and a three-phase cycloconverter, coupled to the cycloconverter controller, for selectively coupling, based on the DC value, an alternating current to an AC line to generate a single-phase AC output.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: September 13, 2016
    Assignee: Enphase Energy, Inc.
    Inventors: Martin Fornage, Donald Richard Zimmanck
  • Patent number: 9419681
    Abstract: An electrical device is provided for a power line system for data transmission, including at least one line of a power supply network, at least one signal line, and a coupling region wherein the at least one line of the power supply network and the at least one signal line are partially arranged. The at least one line of the power supply network and the at least one signal line are electrically isolated from each other and capacitively coupled to each other in the coupling region. A motor vehicle is equipped with the power line system for data transmission.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: August 16, 2016
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Torsten Herzog, Robert Weber, Richard Bogenberger, Winfried Siegl
  • Patent number: 9407323
    Abstract: The present disclosure includes systems and techniques relating to power line communications (PLC) systems and apparatus. In some implementations, a method includes determining information regarding a potential data rate to be used with a powerline communications (PLC) channel, reducing a bias current or voltage of an analog front end of a PLC transceiver based on the determined information to reduce power consumption of the analog front end of the PLC transceiver, and transmitting or receiving data over the PLC channel with the reduced bias current or voltage of the analog front end of the PLC transceiver.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: August 2, 2016
    Assignee: Marvell World Trade Ltd.
    Inventors: Lydi Smaini, Alexandre Rouxel
  • Patent number: 9379775
    Abstract: A communication system includes a router transceiver unit and a bandwidth module. The router transceiver unit includes a network adapter module and a signal modulator module. The network adapter module is configured to receive high bandwidth network data from one or more data sources disposed on board a vehicle. The signal modulator module is configured for electrical connection to a wired connection, and to convert the high bandwidth network data into modulated network data in a form suitable for transmission over the wired connection. The bandwidth module is configured to allocate different portions of a data communication bandwidth of the wired connection to the modulated network data. The allocation is based on categories representing at least one of the one or more data sources or contents of the high bandwidth network data.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: June 28, 2016
    Assignee: General Electric Company
    Inventors: Jared Klineman Cooper, Todd William Goodermuth, Eugene A. Smith, Mark Bradshaw Kraeling, Joseph Forrest Noffsinger, Glenn Robert Shaffer
  • Patent number: 9325374
    Abstract: A powerline communication diversity coupling mechanism may implement a transformer coupling unit. The transformer coupling unit can receive a communication signal to be coupled to a plurality of powerline communication channels for transmission in a powerline communication network. The transformer coupling unit can split the communication signal into a plurality of communication signals for transmission. The transformer coupling unit can couple each of the plurality of the communication signals to a corresponding one of a plurality of the powerline communication channels for transmission in the powerline communication network. Also, the transformer coupling unit can receive a plurality of communication signals on each of a plurality of powerline communication channels. The transformer coupling unit can combine the plurality of the communication signals into a communication signal.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 26, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Gregory Allen Magin, Lawrence W. Yonge, III
  • Patent number: 9128489
    Abstract: A distributed control system is provided wherein a master controller inductively delivers power and data to a plurality of remote slave modules or controllers via a plurality of coupling loops formed along a length of transmission line. Each of the remote slave modules, in turn, inductively delivers return data to the master controller via the plurality of coupling loops. The use of inductive coupling provides an advantage over the state of the art because no direct galvanic electrical connection is required between the transmission line and the remote slave modules which promise to simplify installation and enhance long-term reliability. Example applications for the control system described herein include agricultural irrigation systems where individual sprinkler and valve components may be controlled collectively, individually, or in groups or subsets, to vary application rates according to prescribed irrigation parameters.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: September 8, 2015
    Assignee: Nelson Irrigation Corporation
    Inventors: Mark A. Bauman, Tom J. Young, Craig B. Nelson, Chad D. Leinweber
  • Patent number: 9130372
    Abstract: A system for transmitting alternating current power and communication signals between a first location and a second location through a communication path which includes at least one inductive load and at least one switch configured to switch power to the at least one inductive load on and off is disclosed herein. The system comprises a control configured to control the at least one switch so that, if the power is switched on during a particular phase of the power, is the power is switched off during the opposite phase of the power, and if the power is switched off during a particular phase of the power, the power is switched on during the opposite phase of the power.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: September 8, 2015
    Assignee: Vetco Gray Controls Limited
    Inventors: Silviu Puchianu, Hilton Smart, Graham Morley, Julian Richard Davis, Steven Lewis Charles Simpson
  • Patent number: 9112590
    Abstract: A device for determining a common-mode signal in a power line communication network. The device includes a first line, a second line, and a third line that are connected to a first terminal, to a second terminal, and to a third terminal, respectively. The first, the second, and the third terminal are configured to be connected to a phase line, a neutral line, and a protective ground line of the power line communication network, respectively. The device further includes a common-mode choke configured to couple out the common signal from the first, second, and third line, and the common-mode choke is connected to a termination impedance which is higher than an impedance of the power line communication network.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: August 18, 2015
    Assignee: Sony Corporation
    Inventors: Andreas Schwager, Werner Baeschlin
  • Patent number: 9041241
    Abstract: Embodiments include systems and methods of powering a mobile device using a sink device. The method may include detecting a coupling of the mobile device to the sink device and transmitting an acknowledgement in response to a query, the acknowledgement confirming that the sink device has charging capability. Power may be selectively provided in response to the power request. According to some embodiments, the method includes transmitting a query by a communications transmitter to determine if a sink device has charging capability, and deactivating a driver for a power line and transmitting a power request using the communications transmitter in response to receiving an acknowledgement signal from the sink device. The method may further include selectively providing power received from the sink device to a charging circuit of the mobile device. The mobile device may include an HDMI transmitter for communicating through a transmission line to an HDMI sink device.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: May 26, 2015
    Assignee: Analogix Semiconductor, Inc.
    Inventors: Ning Zhu, Hongwu Chi
  • Patent number: 9024464
    Abstract: A powerline communication control system for controlling a lighting unit, such as an LED lighting unit, including a master controller for receiving lighting unit control inputs from a lighting controller and generating corresponding lighting unit command outputs in a lighting system command format and transmission mode and superimposing the lighting unit command outputs onto the power distribution system and at least one lighting slave unit for receiving the lighting command signal, separating the lighting command signal from the power signal and for providing lighting unit control commands to the at least one lighting unit to control illumination thereof.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: May 5, 2015
    Assignee: Lumenpulse Lighting Inc.
    Inventor: Gregory Campbell
  • Patent number: 8952793
    Abstract: A bicycle electrical system is provided with a first electric component, a second electric component, and a third electric component. The first electric component includes a first electric power line communication section. The second electric component includes a second electric power line communication section. The third electric component includes a third electric power line communication section. The first and second electric power line communication sections are connected with a first electric power line such that the first and second electric power line communication sections conduct communications via the first electric power line. The second and third electric power line communication sections are connected with a second electric power line such that the second and third electric power line communication sections conduct communications via the second electric power line.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: February 10, 2015
    Assignee: Shimaro Inc.
    Inventors: Taihei Nishihara, Takafumi Suzuki, Shun Kou
  • Patent number: 8934860
    Abstract: A method for detecting an ingress of a short wave radio signal in a power line communication system which determines a strength of a common mode signal at a frequency of the power line communication system during a time period when no communication in the power line communication system at this frequency takes place and an ingress is detected if the strength of the common mode signal is above a determined threshold. A corresponding power line communication modem can implement such a method.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: January 13, 2015
    Assignee: Sony Corporation
    Inventor: Andreas Schwager
  • Patent number: 8928170
    Abstract: A receiver and method for a transponder of a two-way automatic communications system (TWACS) used by an electrical utility in which analog outbound messages are sent from the utility to a consumer and inbound, reply messages are sent from the consumer to the utility. The receiver and method enable a transponder to detect the outbound messages and include A/D conversion and digital processing for demodulating a digitized signal and providing the outbound message.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 6, 2015
    Assignee: Aclara Technologies LLC
    Inventor: David W. Rieken
  • Patent number: 8922048
    Abstract: A photovoltaic (PV) sub-generator junction box (1) for a PV system (100) comprises a plurality of electric terminals (11) for optionally connecting one respective PV string (2) of one or more serially connected PV modules (3). Said PV sub-generator junction box (1) further comprises a sub-generator line terminal (12) for connecting a PV sub-generator line (4) of a remote central PV inverter (5) or connecting a PV sub-generator line (4) of an inserted PV generator junction box (6). The PV sub-generator junction box (1) also comprises an electronic control unit (10) that is connected to a central control unit (7) of the PV inverter (5) in order to exchange data (DAT0). According to the invention, the PV sub-generator junction box (1) comprises a power line modem (8) for feeding and retrieving the data (DAT) via the PV sub-generator line (4).
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: December 30, 2014
    Assignee: SMA Solar Technology AG
    Inventor: Bodo Giesler
  • Patent number: 8907519
    Abstract: A data transmission system includes a sender, at least one receiver, a sender controller, and a receiver controller. The sender controller receives an AC signal from an AC power source via a first AC input port, receives data from the sender via a first data port, and processes the received AC signal according to the received data, and outputs a processed AC signal via a first AC output port. The receiver controller receives the processed AC signal from the sender controller via the second AC input port, powers the at least one receiver using the processed AC signal via the second AC output port, and converts the processed AC signal to corresponding data and transmits the data to the at least one receiver via a second data port.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: December 9, 2014
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Presicion Industry Co., Ltd.
    Inventors: Ju-Yuan Zhang, Zhang-Yong Zheng, Bi-Qing Luo, Xin Lu, Shih-Fang Wong
  • Patent number: 8896153
    Abstract: An electric power supplying system includes at least two systems each including a bus line which is formed by at least two conductors and on which an information signal representing information is superimposed on electric power, a power supply server which is connected to the bus line and which supplies the electric power, and a client connected to the bus line to receive the supply of the electric power from the power supply server. The two systems are connected to each other by connecting the bus lines using conductors. The conductors include a connector having at least two electrodes that connect with each of the conductors. The connector has a structure in which, when the connector is connected to the bus line, one of the electrodes is connected to the bus line before the other of the electrodes.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: November 25, 2014
    Assignee: Sony Corporation
    Inventor: Shigeru Tajima
  • Patent number: 8847151
    Abstract: An apparatus and method for coupling RF and AC signals to provide power to a multipole in a mass spectrometer is provided. A first circuit comprises: an RF power source for providing difference mode power to the multipole via the RF signal; at least one inductor for forming at least one resonant LC circuit with the multipole for providing voltage gain for the RF signal; and a transformer, comprising a secondary tap, the transformer connected in parallel to the RF power source and further connected to the at least one inductor such that the signals injected into the secondary tap are communicated to the at least one resonant LC circuit.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: September 30, 2014
    Assignee: DH Technologies Development Pte. Ltd.
    Inventors: John Vandermey, Alexandre Loboda
  • Patent number: 8823202
    Abstract: There is provided an electronic appliance including a hinge portion including a first rotating hinge including a first electrode for transmitting a direct current and a first coil for transmitting/receiving a data signal by using electromagnetic induction, and a second rotating hinge including a second electrode for receiving the direct current by contacting the first electrode and a second coil for transmitting/receiving the data signal to/from the first coil. The hinge portion connects the first rotating hinge and the second rotating hinge in a rotatable manner while maintaining a state where the first electrode and the second electrode are in contact with each other and a center axis of the first coil and a center axis of the second coil are substantially same.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 2, 2014
    Assignee: Sony Corporation
    Inventor: Takehiro Sugita
  • Patent number: 8816832
    Abstract: Coupling circuit for coupling a power line communication device to a power line network, including a first network port coupled between a network phase line and a first network line, a second network port coupled between a network neutral line and a second network line, a third network port coupled between a network ground line and a third network line, a first differential modem port including a first terminal and a second terminal, a second differential modem port including a third terminal and a fourth terminal, a first transformer including a first network side winding and a first modem side winding, a second transformer including a second network side winding and a second modem side winding, the transformers including respective terminals, a center tap extending from the midpoint of the first network side winding to a terminal of the second network side winding and a plurality of capacitors.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: August 26, 2014
    Assignees: Sigma Designs Israel S.D.I Ltd., Alvarion Technologies Ltd
    Inventors: Uri Weiss, Dror Ben-Yehuda, Naftali Chayat
  • Patent number: 8810059
    Abstract: Coupling and interface circuits for powerline modems are disclosed. A powerline modem may be coupled to a low voltage (LV) line or a medium voltage (MV) line using a circuit that is designed to compensate for signal attenuation and loss that is created by the a LV/MV transformer and/or a MV coupler. In one embodiment, separate coupling transformers may be used by the modem for reception and transmission. In other embodiments, a capacitance is switched on the transmission line before the modem transmits to lower the line impedance.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: August 19, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Il Han Kim, Badri N. Varadarajan, Anand G. Dabak
  • Publication number: 20140175866
    Abstract: A system for transmitting communication signals, the system comprising an injector circuit connected to a powered circuit conductor and configured to modulate a power signal with a direct current voltage offset, the direct current voltage offset being within a range that causes approximately 1 percent or less total harmonic distortion of the power signal; and a decoder connected to the powered circuit conductor and a load, the decoder configured to demodulate the direct current voltage offset to control the load. A method for transmitting communication signals, the method comprising modulating a power signal on a powered circuit conductor with a direct current voltage offset, the direct current voltage offset being within a range that causes approximately 1 percent or less total harmonic distortion of the power signal; and demodulating the direct current voltage offset to control a load.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: Powerline Load Control LLC
    Inventors: Christopher Fox, Peter R. Pettler
  • Patent number: 8759999
    Abstract: A powerline communication control system for controlling a lighting unit, such as an LED lighting unit, including a master controller for receiving lighting unit control inputs from a lighting controller and generating corresponding lighting unit command outputs in a lighting system command format and transmission mode and superimposing the lighting unit command outputs onto the power distribution system and at least one lighting slave unit for receiving the lighting command signal, separating the lighting command signal from the power signal and for providing lighting unit control commands to the at least one lighting unit to control illumination thereof.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: June 24, 2014
    Assignee: Lumenpulse Lighting, Inc.
    Inventor: Gregory Campbell
  • Patent number: 8716882
    Abstract: A system for transmitting communication signals, the system comprising an injector circuit connected to a powered circuit conductor and configured to modulate a power signal with a direct current voltage offset, the direct current voltage offset being within a range that causes approximately 1 percent or less total harmonic distortion of the power signal; and a decoder connected to the powered circuit conductor and a load, the decoder configured to demodulate the direct current voltage offset to control the load. A method for transmitting communication signals, the method comprising modulating a power signal on a powered circuit conductor with a direct current voltage offset, the direct current voltage offset being within a range that causes approximately 1 percent or less total harmonic distortion of the power signal; and demodulating the direct current voltage offset to control a load.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: May 6, 2014
    Assignee: Powerline Load Control LLC
    Inventors: Peter R. Pettler, Christopher Fox
  • Patent number: 8710695
    Abstract: In accordance with one embodiment of the present disclosure, a method may include receiving, at a first plug link device prong, a Powerline Communication (PLC) signal from a first main electrical line. The method may further include transferring the PLC signal from the first plug link device prong to a first plug link device electrical line. The method may also include passing the PLC signal from the first plug link device electrical line to a second plug link device electrical line. The method may also include transferring the PLC signal from the second plug link device electrical line to a second plug link device prong. The method may also include sending, from the second plug link device prong, the PLC signal to a second main electrical line.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: April 29, 2014
    Assignee: Asoka USA Corporation
    Inventors: Jiun-Sheuan Yang, Xia MingYao
  • Patent number: 8692407
    Abstract: A power line transmission apparatus is not interfered by the noise of the public power for transmitting high quality video/audio signal. The power line transmission apparatus includes an isolating unit connected between an external power line and an internal power line for isolating a high frequency noise signal carried on the external power line and transmitting a first power signal of the external power line from the external power line to the internal power line, and a power line network interface. The power line network interface includes at least one digital signal input/output interface for inputting or outputting a digital signal, converting the digital signal, and modulating the converted signal into the first power signal to form a second power signal and transmit the second power signal to the internal power line. A home network system without noise signal interference is built by utilizing several power line transmission apparatuses.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: April 8, 2014
    Assignee: Powertech Industrial Co., Ltd.
    Inventors: Yu-Lung Lee, Ming-Chou Kuo