Power Supply (e.g., Battery Feed) Patents (Class 379/413)
  • Patent number: 10298008
    Abstract: The present disclosure discloses a DC to DC boost converter, comprising a boosted circuit, a protecting circuit, a detecting circuit, a feedback control circuit, and a feedback circuit. The boosted circuit outputs voltage to the outside through the protecting circuit, the protecting circuit controls the boosted circuit to output voltage to the outside according to the current output from the boosted circuit. The detecting circuit detects the output voltage of the protecting circuit and controls whether the feedback control circuit proceeds the feedback control to the boosted circuit according to the feedback voltage of the feedback circuit or not according to the detected output voltage. The DC to DC boost converter adds the protecting circuit and the detecting circuit, which completely shuts the output down while the output is short, thus achieving short-protecting circuit and reducing power consumption.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: May 21, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Wendong Li
  • Patent number: 10003201
    Abstract: A method is employed by an electronic device for managing power used by an associated accessory device attached to the electronic device. The method includes applying a current to the accessory device and in response to the applied current, at least one of first and second identifier resistances are identified in the accessory device. The method determines whether the accessory device is connected to a power supply in response to the at least one of identified first and second identifier resistances and applies power to the accessory device in response to a determination the accessory device is not connected to the power supply.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: June 19, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Oh Sung, Myung-Hoon Kwak
  • Patent number: 9935897
    Abstract: Network switching arrangements including: setting an operation mode of a target switching block to a operation mode that is different from an operation mode of a first switching block while the first switching block is handling a switching process, the target switching block being one switching block selected from second switching blocks; performing a switchover process including starting the switching process using the target switching block instead of the first switching block, after completion of setting the operation mode of the target switching block; and copying the switching information held by the first switching block to the target switching block, prior to starting the switching process using the target switching block, after completion of setting the operation mode of the target switching block.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: April 3, 2018
    Assignee: ALAXALA NETWORKS CORPORATION
    Inventors: Masayuki Shinohara, Nobuhito Matsuyama, Takayuki Muranaka, Isao Kimura, Shinichi Akahane
  • Patent number: 9866397
    Abstract: Power is supplied to telecom equipment in DSLAM outdoor/remote cabinets with relatively short distances between the subscriber and the cabinet. All of the subscriber Customer Premises Equipment connected to the DSLAM each provide a portion of the required power to the remote cabinet via the telephone line connecting the DSLAM and the subscriber CPE. The CPE at the subscriber premises is already connected to power mains in the subscriber premises so, providing power, via the telephone line to the outdoor cabinet is relatively simple. The remote cabinet includes a circuit for receiving the power input from each subscriber and then distributing the power, required by the DSLAM load, equally among the subscribers.
    Type: Grant
    Filed: July 31, 2016
    Date of Patent: January 9, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jan Hansen, Hans Knutsson
  • Patent number: 9859951
    Abstract: A PoDL system includes a PSE connected via a wire pair to a PD, where differential data and DC power are transmitted over the same wire pair. Typically, low voltage/current detection and classification routines are required upon every powering up of the system to allow the PD to convey its PoDL requirements to the PSE. Various techniques are described that simplify or obviate such start-up routines or enable increased flexibility for the PoDL system. Such techniques include: ways to specify a particular PD operating voltage; ways to disable the PD's UVLO circuit during such routines; using opposite polarity voltages for the two routines; using voltage limiters or surge protectors to convey the PoDL information; detecting loop resistance; using a PSE memory to store previous results of the routines; and powering the PD communication circuit using the wire pair while the PD load is powered by an alternate power source.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: January 2, 2018
    Assignee: Linear Technology Corporation
    Inventors: Jeffrey Heath, David Dwelley
  • Patent number: 9787410
    Abstract: System for use in combination with a remote node powered by a first number of lines, each line thereof being capable of providing power to the remote node in an active state of the line and not being capable of providing power to the remote node in a non-active state of the line; said system comprising: a second number of convertors; and a power control part configured for controlling the power provided by each line of said first number of lines to a converter of said second number of converters, in function of the time, depending of the states of the first number of lines.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: October 10, 2017
    Assignee: Alcatel Lucent
    Inventors: Eric Van Den Berg, Bart Hillaert
  • Patent number: 9748897
    Abstract: A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: August 29, 2017
    Assignee: Solaredge Technologies Ltd.
    Inventors: Guy Sella, Lior Handelsman, Vadim Shmukler, Meir Adest, Meir Gazit, Yoav Galin
  • Patent number: 9748896
    Abstract: A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: August 29, 2017
    Assignee: Solaredge Technologies Ltd.
    Inventors: Guy Sella, Lior Handelsman, Vadim Shmukler, Meir Adest, Meir Gazit, Yoav Galin
  • Patent number: 9671849
    Abstract: A power supply system is provided to control one or more power supply units associated with an information handling system. A first power supply unit and a second power supply unit are electrically coupled to the information handling system. A controller is provided in communication with both the first and second power supply units. The controller functions to select one of the first and second power supply units to electrically power the information handling system. The non-selected unit generates zero output.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: June 6, 2017
    Assignee: International Business Machines Corporation
    Inventors: Frank Chen, George Cheng, Peter Cy Huang
  • Patent number: 9658606
    Abstract: A protection circuit to prevent power-on operations for a motherboard includes a first power supply, a spring mechanical switch attached to a chassis of an electronic device, a plurality of second power supplies with different voltages, and a plurality of electronic switches. The spring mechanical switch includes a first terminal coupled to the first power supply, and a second terminal grounded. First pins of the electronic switches are coupled to the first terminal, second pins of the electronic switches respectively are coupled to the second power supplies, third pins of the electronic switches are capable of powering the motherboard. When the cover is detached from the chassis, the mechanical switch rebounds, the first terminal disconnects and the second terminal are disconnected, the electronic switches are turned off, no voltages output from the third pins of the electronic switches.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: May 23, 2017
    Assignees: HONG FU JIN PRECISION INDUSTRY (WuHan) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Yong-Zhao Huang
  • Patent number: 9596362
    Abstract: A system for optimizing the transmission of power through multiple conductors from a remote power source to a local communications device including: (a) a controller for the power source and for incrementally increasing the output voltage during a transmission resistance detection protocol; (b) a first voltage detection circuit for detecting a predetermined minimum voltage received by the detection circuit and for placing a load across the conductors when that minimum voltage is received; (c) a second voltage detection circuit for detecting a predetermined maximum voltage received by that detection circuit and for removing the load from across the conductors at that time; (d) voltage and current measuring devices to measure the transmission current and the output voltage of the power source when the predetermined maximum voltage is received; and (e) memory for storing the measured voltage, measured current and the predetermined maximum voltage for use by the controller.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: March 14, 2017
    Assignee: Cottonwood Creek Technologies, Inc.
    Inventors: Gary Steven Smock, Dwight W. Kitchin, Alan K. Schott
  • Patent number: 9478969
    Abstract: A method for operating a ground fault circuit interrupter. In accordance with an embodiment, an operating parameter of the ground fault circuit interrupter can be adjusted in response to an alternating current line signal and a reference signal. In accordance with another embodiment a plurality of indicator signals are generated in response to an alternating current signal. The indicator signals are used to generate one or more control signals and at least one of the control signals is used to control a control a ground fault circuit interrupter.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 25, 2016
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Riley D. Beck, Scott R. Grange
  • Patent number: 9442544
    Abstract: An energy efficient sleep signature in power over Ethernet. In one embodiment, a signature of a powered device is first detected. It is then determined whether the detected signature is indicative of an unknown powered device. In one example, a detected signature of an approximately 25 k? impedance is indicative of an unknown powered device. Where the detected signature is indicative of an unknown powered device a normal PoE startup powering process can be used that includes a conventional detection, classification and powering process. Where the detected signature is indicative of a powered device that was previously known to the PSE, then powering of the PD can proceed with a fast-restart powering method that retains previous powering parameters.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: September 13, 2016
    Assignee: BORADCOM CORPORATION
    Inventor: Wael William Diab
  • Patent number: 9282518
    Abstract: Methods and systems for preserving the life of a transport refrigeration system power source are provided. The method can include determining whether a control unit of the transport refrigeration system is off. Also, the method can include measuring an input voltage of a network coordinator when the control unit is off. Further the method can include instructing one or more parasitic electronic devices of the transport refrigeration mode to operate in a hibernation mode when the input voltage of the transport refrigeration system power source remains below a voltage threshold value for a time period and the control unit is off.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: March 8, 2016
    Assignees: THERMO KING CORPORATION, INVENSYS SYSTEMS, INC.
    Inventors: Russell Lee Sanders, Mark Daniel Leasure, Kim Vitkus, Mark Johnson
  • Patent number: 9152186
    Abstract: A notebook computer including a controller for controlling operation of the notebook computer, a pouch in which to insert a cellular communicator, an amplifier connected to the controller, a speaker connected to the amplifier, a power supply connected to the controller, and circuitry, connected to the pouch and to the amplifier, for enabling the amplifier when the controller is powered off, in response to the cellular communicator being inserted in the pouch, and for causing the amplifier to generate a call alert when an incoming call arrives at the cellular communicator while the cellular communicator is inserted in the pouch.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: October 6, 2015
    Assignee: Google Inc.
    Inventors: Dov Moran, Eyal Bychkov, Uri Ron, Itay Sherman
  • Patent number: 9088490
    Abstract: A first network switching device communicates to and from a second network switching device different in at least one of a device configuration and a device performance. The network switching device has at least one of plurality of network interface units and packet forwarding unit which is a power state control subject. A power state control unit of the first network switching device transmits, in order to change the power state of the second network switching device, a forwarding performance notification including the forwarding performance of a power state control subject after the change to the second network switching device.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: July 21, 2015
    Assignee: Alaxala Networks Corporation
    Inventors: Hiroto Ogaki, Hideo Kodaka
  • Patent number: 9083269
    Abstract: A method and a circuit system for operating an electric machine are presented. The method is carried out in particular in a starting phase, a current being limited using a controllable resistor, the controllable resistor being implemented by at least one semiconductor switch, which is controlled using a clocked signal, and the signal being set in such a way that in shutdown phases, the at least one semiconductor switch is not completely shut down.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: July 14, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marc Eschenhagen, Rasmus Rettig, Franziska Kalb, Michael Merkle, Werner Schiemann, Joachim Joos
  • Patent number: 9065894
    Abstract: The display of a mobile device is managed during a voice communication session using a proximity sensor and an accelerometer. In one example, the display of a mobile device is turned off during a phone call on the mobile device when a proximity sensor detects an object is proximate the device and an accelerometer determines the device is in a first orientation.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: June 23, 2015
    Assignee: Google Inc.
    Inventor: Michael Lockwood
  • Patent number: 9014367
    Abstract: A subscriber line interface circuit (SLIC) is herein described. In accordance with one aspect of the present proffered solution, the SLIC includes a first interface circuit operably coupled to a first subscriber loop and a second interface circuit operably coupled to a second subscriber loop. The SLIC further includes a power supply circuit that is coupled to the first and second interface circuits to provide first and second output voltages to the respective interface circuits. The power supply circuit includes a switching power converter that is operably supplied with an input voltage and is configured to provide an intermediate voltage signal at an intermediate circuit node. At least a first and a second output branch are connected to the intermediate circuit node. Each output branch includes an output capacitor that is coupled to the intermediate circuit node and that provides an output voltage signal that depends on the intermediate voltage signal.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: April 21, 2015
    Assignee: Lantiq Deutschland GmbH
    Inventor: Gerhard Noessing
  • Publication number: 20150098562
    Abstract: A voltage regulator includes a switch coupled between an input voltage terminal and an energy storage element, a first output capacitor coupled to a first node defined between the switch and the energy storage element, the first capacitor being coupled to a first output voltage terminal, a charge pump circuit coupled to the first node and comprising a second output capacitor coupled between a second output voltage terminal and the first output voltage terminal, and a controller operable to selectively enable the switch to control voltages generated at the first and second output terminals.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Inventors: Walter Rossi, Jason Larry Rabb, David Nigel Wakely
  • Patent number: 8995683
    Abstract: Disclosed are methods and devices for adapting a ringtone in accordance with ambient noise. In one embodiment a method includes processing an ambient noise signal to determine an ambient noise volume. When there is an incoming communication and it is determined that the ambient noise has a low ambient noise volume, a method can include generating a ringtone having a ringtone volume that is initially a low volume and increasing the ringtone volume over a predetermined period of time. A method can include applying a filter to the ringtone signal to increase a signal-to-noise ratio, the filter configured to increase an amplitude of a frequency that is not one of the predominant frequencies of the ambient noise and that the transducer is configured to output according to the transducer frequency response. In another embodiment, a second transducer may generate a ringtone output in addition to the first transducer.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: March 31, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Adrian M. Schuster, Christopher A. Evans, Ukrit Visitkitjakarn, Joel Anthony Clark
  • Patent number: 8971524
    Abstract: Systems and techniques for communication over telephony wireline. A command interface and control device may include a wireline input configured to connect the device to an operative line of a wireline telephony network (such as the PSTN) and to transmit voice signals to and receive voice signals from the wireline telephony network. The device may also include a cellular module configured to transmit signals to and receive signals from a cellular telephony network and a system controller to control communications on the wireline input and the cellular module. One or more wireline adapter modules may be configured to provide control functionality local to a telecommunications device.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: March 3, 2015
    Assignee: Universcel Corporation
    Inventors: David S. Grant, Paul A. Higgs, Claus W. Knudsen, Brian P. Willnecker, Rodney G. Hexter
  • Patent number: 8964968
    Abstract: Disclosed is a system for voice communication that includes a power supply assembly, at least one handset configured to transmit voice signals, a voice cable assembly communicably coupled with the power supply assembly and the at least one handset, and a main terminal communicably coupled with the voice cable assembly. The voice cable assembly includes a cable harness configured to receive a predetermined power from the power supply assembly and to receive voice signals from the at least one handset. Also, the voice cable assembly includes a voice cable circuit card assembly communicably coupled with the cable harness to receive the predetermined power and the voice signals from the cable harness. The voice cable circuit card assembly is configured to adapt the voice signals by utilizing the predetermined power in order to match a predefined voice requirement. Further disclosed are a voice cable assembly and a method for voice communication.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: February 24, 2015
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Christopher O'Bara, Donald R. Kerns, Matthew Terranova, Christopher Devoy, Michael T. Zimmer
  • Patent number: 8949049
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: February 3, 2015
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Patent number: 8917865
    Abstract: A voltage generation apparatus includes a booster circuit which outputs a direct-current voltage after having performed boosting processing, the voltage value of the direct-current voltage being specified on the basis of a pulse width of a series of pulse signals inputted, a direct-current to alternating-current conversion circuit which generates a ringer voltage to be supplied to a device connectable to a telephone line by converting the direct-current voltage outputted by the booster circuit to an alternating-current voltage, and a control unit which outputs a series of pulse signals to the booster circuit. the series of pulse signals having a feeding-voltage pulse width corresponding to a target voltage value of a feeding, voltage or a ringer-voltage pulse width corresponding to a target voltage value. the feeding-voltage pulse width and the linger-voltage pulse width being pulse widths having been set in a voltage adjustment stage.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: December 23, 2014
    Assignee: NEC AccessTechnica, Ltd.
    Inventor: Takuma Aoshima
  • Publication number: 20140355753
    Abstract: The present invention concerns a method for optimising the electrical consumption of a residential gateway comprising at least one FXS port to which an analogue telephone is connected via a line, said FXS port being configured from a pair of polarisation points, referred to as default, which defines maximum voltage and current characteristics of the line that are predetermined so as to ensure correct operation of the telephone in on-hook or off-hook mode whatever the type of this telephone.
    Type: Application
    Filed: August 14, 2012
    Publication date: December 4, 2014
    Applicant: SAGEMCOM BROADBAND SAS
    Inventors: Nicolas Dangy-Caye, Jean-Philippe Jaulin, Laurent Capdevielle-Fidel
  • Patent number: 8903082
    Abstract: A subscriber line interface circuit (SLIC) is herein described. In accordance with one aspect of the present proffered solution, the SLIC includes a first interface circuit operably coupled to a first subscriber loop and a second interface circuit operably coupled to a second subscriber loop. The SLIC further includes a power supply circuit that is coupled to the first and second interface circuits to provide first and second output voltages to the respective interface circuits. The power supply circuit includes a switching power converter that is operably supplied with an input voltage and is configured to provide an intermediate voltage signal at an intermediate circuit node. At least a first and a second output branch are connected to the intermediate circuit node. Each output branch includes an output capacitor that is coupled to the intermediate circuit node and that provides an output voltage signal that depends on the intermediate voltage signal.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: December 2, 2014
    Assignee: Lantiq Deutschland GmbH
    Inventor: Gerhard Noessing
  • Patent number: 8897431
    Abstract: Power is supplied to telecom equipment in DSLAM outdoor/remote cabinets with relatively short distances between the subscriber and the cabinet. All of the subscriber Customer Premises Equipment connected to the DSLAM each provide a portion of the required power to the remote cabinet via the telephone line connecting the DSLAM and the subscriber CPE. The CPE at the subscriber premises is already connected to power mains in the subscriber premises so, providing power, via the telephone line to the outdoor cabinet is relatively simple. The remote cabinet includes a circuit for receiving the power input from each subscriber and then distributing the power, required by the DSLAM load, equally among the subscribers.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: November 25, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jan Hansen, Hans Knutsson
  • Publication number: 20140321636
    Abstract: A telephone unit device connectable in series between a telephone set and a wire pair coupled to a telephone service and carrying DC power and an AC telephone signal. The device includes: a first connector connectable to the wire pair; a second connector connectable to the telephone set; means connected between the first and second connectors for passing substantially without change the AC telephone signal between the wire pair and the telephone set; and means connected between the first and second connectors for receiving DC power only from the wire pair and converting the DC power to a level suitable for proper telephone operation of the telephone set connected thereto.
    Type: Application
    Filed: May 16, 2014
    Publication date: October 30, 2014
    Applicant: Conversant Intellectual Property Management Incorporated
    Inventors: Yehuda BINDER, Ami HAZANI, Semion KOFMAN
  • Patent number: 8866337
    Abstract: Techniques are provided for providing power onto multiple power distribution paths. Power controller devices receive power from a power source device and are coupled to first and second multiplexer units. The multiplexer units receive power from the power source devices via the power controller devices for first and second power distribution paths. A multiplexer control unit controls the multiplexer units to output power from the first power distribution path, the second power distribution path or both of the paths. Power subsystems are provided comprising first and second power transistor units. The first transistor unit receives power from the first multiplexer unit over the first path and the second transistor unit receives power from the second multiplexer unit over the second path. Ports are provided and are coupled to a powered device. The multiplexer control unit controls the multiplexer units to supply power to the respective ports according to the type of powered device detected at a port.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: October 21, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Frederick Roland Schindler, Koussalya Balasubramanian, Kamran Torabi
  • Patent number: 8867736
    Abstract: A control device includes a circuit operable to sense an analog input voltage dependent on a line current flowing via a communication line of a terminal generate an analog difference voltage in a constant line current operation based on a difference between the sensed analog input voltage and an analog feedback voltage which depends on an adjustable nominal direct-current value and filter a sequence of control error values from a sequence of digital difference voltage values converted from the generated analog difference voltage. The circuit is further operable to convert a control value generated from the sequence of control error values in the constant line current operation to an analog direct voltage for supplying the terminal and convert the nominal direct-current value into the analog feedback voltage in the constant line current operation.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: October 21, 2014
    Assignee: Lantiq Deutschland GmbH
    Inventors: Richard Gaggl, Christian Jenkner, Gerhard Noessing
  • Patent number: 8831211
    Abstract: Circuitry and methodology for providing data transmission in a Power over Ethernet (PoE) system having a Power Sourcing Equipment (PSE) for providing power to a PoE link, and a Powered Device (PD) coupled to the PoE link for receiving the power from the PSE. The PSE and PD support data communication with each other in a common mode between two pairs of lines in an Ethernet twisted pair cable.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: September 9, 2014
    Assignee: Linear Technology Corporation
    Inventors: David McLean Dwelley, John Arthur Stineman, Jr.
  • Patent number: 8787562
    Abstract: A telephone unit device connectable in series between a telephone set and a wire pair coupled to a telephone service and carrying DC power and an AC telephone signal. The device includes: a first connector connectable to the wire pair; a second connector connectable to the telephone set; means connected between the first and second connectors for passing substantially without change the AC telephone signal between the wire pair and the telephone set; and means connected between the first and second connectors for receiving DC power only from the wire pair and converting the DC power to a level suitable for proper telephone operation of the telephone set connected thereto.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: July 22, 2014
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Yehuda Binder, Ami Hazani, Semion Kofman
  • Patent number: 8767952
    Abstract: Aspects of a method and system for utilizing a single connection for efficient delivery of power and multimedia information are provided. In this regard, power supplied and/or received over a network link may be controlled based on multimedia content communicated over the network link. The multimedia content may be converted to and/or from Ethernet frames for communication over the network link utilizing audio video bridging. The multimedia content may be raw video or may be formatted according to, for example, HDMI or DisplayPort specifications. The power supplied may be controlled by selecting one of a plurality of power classes. The selection of power class may be based on resolution of the multimedia content, whether the multimedia comprises audio and/or video, and/or based on latency targets.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: July 1, 2014
    Assignee: Broadcom Corporation
    Inventors: Wael William Diab, Michael Johas Teener
  • Patent number: 8705728
    Abstract: A device includes a plurality of subscriber line interface circuits and a shared protection device. Each subscriber line interface circuit has a voltage input terminal and first and second interface line terminals. The shared protection device is coupled to the interface line terminals and operable to sense a negative reference voltage representing a most negative one of the voltages present on the voltage input terminals and to provide overvoltage protection responsive to a voltage on at least one of the interface line terminals exceeding the negative reference voltage.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: April 22, 2014
    Assignee: Microsemi Semiconductor (U.S.) Inc.
    Inventors: Qiangsheng Charssen Ge, Elizabeth Ellen Perry, David Paul Chabinec
  • Patent number: 8693679
    Abstract: A communications system includes a communications device having a plurality of access modules each having a port and connected to a communications line and a plurality of transmitters with the respective transmitter associated in one-to-one correspondence with the communications line of an access module. Each transmitter has a line driver and is configured to couple communications signals to a respective communications line. A voltage source is connected to the line drivers and configured to provide a bias voltage to the line drivers that varies depending on a selected minimum power level. A controller is connected to the voltage source and has logic configured to change the bias voltage to the line drivers. The controller is responsive to a minimum data rate for each bias voltage.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: April 8, 2014
    Assignee: Adtran, Inc.
    Inventor: Brian Christian Smith
  • Patent number: 8635549
    Abstract: Methods, systems, and computer-storage media for customizing the appearance of a desktop background are provided. The desktop is the bottom surface drawn behind the application windows, gadgets, a task bar, and other user interface elements displayed on a computing screen. Embodiments of the present invention allow a user to customize the background by dragging an image representation from a desktop control panel onto a portion of the desktop. Once dropped onto the desktop, the image associated with the representation is used to generate the desktop background. When the desktop is extended to different monitors, the portion of desktop on each monitor may be customized separately.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: January 21, 2014
    Assignee: Microsoft Corporation
    Inventors: David B. Perry, Kenneth Sean Gilmour, Sanjeev Kewal Verma
  • Patent number: 8600041
    Abstract: A method and an apparatus for improving power output efficiency of a line driver are disclosed. The method includes: obtaining a current working parameter of an xDSL subscriber board, where the current working parameter includes at least one of a working mode configured on a subscriber port of the xDSL subscriber board and current output power of the subscriber port; and determining, according to the current working parameter, a control signal for a line driver in the xDSL subscriber board and outputting the control signal.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: December 3, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Liang Chen, Liru Dai, Li Wang
  • Patent number: 8553848
    Abstract: Systems and methods can provide for preventing a false alarm generated during a planned network outage during a maintenance window. Security systems can generate and report alarms to a security center through a communications network. Intruders are known to disable the communication network thereby preventing reporting of an alarm to the security center. Security systems can generate local alarms upon detecting loss of the communications network. It is advantageous for a communications network operator to prevent false alarm generation during periods of planned network outages.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: October 8, 2013
    Assignee: ARRIS Enterprises, Inc.
    Inventor: William J. Mohr
  • Patent number: 8532265
    Abstract: A modular form factor power module system with monitoring and control functions is disclosed. The power module system is configured to power, monitor and/or control telecommunications equipment at the circuit level.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: September 10, 2013
    Assignee: Telect Inc.
    Inventors: Randolph Stanton Wright, Cindy Antoinette Dainio, Larry O'Neal Reeder, Phung M. Tran
  • Patent number: 8520835
    Abstract: A method, apparatus, and system in which one embodiment includes a network interface device (NID) located outside a building and a power supply unit located inside the building. The power supply unit has an electrical isolation component and one or more ports that couple via a first phone line and a second phone line to the NID to provide isolated DC power to the NID.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: August 27, 2013
    Assignee: 2Wire, Inc.
    Inventors: James T. Schley-May, Michael Henderson
  • Publication number: 20130163750
    Abstract: A telephone adapter includes first and second conversion circuits, a switch unit, and a RJ11 interface. The first conversion circuit includes a digital to analog (D/A) converter and a coupler. The second conversion circuit includes an analog to digital (A/D) converter and a decoupler. When the switch unit connects the first conversion circuit to the RJ11 interface, the D/A converter converts a first digital signal from the RJ11 interface into a first analog form data. The coupler couples the first analog form data to a first alternating current (AC) voltage. When the switch unit connects the second conversion circuit to the RJ11 interface, the decoupler decouples and separates a second AC voltage into a second analog form data. The A/D converter converts the second analog form data into a second digital signal, and outputs the second digital signal to the RJ11 interface.
    Type: Application
    Filed: April 10, 2012
    Publication date: June 27, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: SZU-LUN HUANG, CHIH-HUANG WU
  • Patent number: 8472618
    Abstract: Network switching arrangements including: setting an operation mode of a target switching block to a operation mode that is different from an operation mode of a first switching block while the first switching block is handling a switching process, the target switching block being one switching block selected from second switching blocks; performing a switchover process including starting the switching process using the target switching block instead of the first switching block, after completion of setting the operation mode of the target switching block; and copying the switching information held by the first switching block to the target switching block, prior to starting the switching process using the target switching block, after completion of setting the operation mode of the target switching block.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: June 25, 2013
    Assignee: ALAXALA Networks Corporation
    Inventors: Masayuki Shinohara, Nobuhito Matsuyama, Takayuki Muranaka, Isao Kimura, Shinichi Akahane
  • Patent number: 8467520
    Abstract: A method of generating a plurality of supply voltages for a plurality of subscriber line channels includes generating a first target VBAT value for a first associated linefeed driver from a first VBAT control. A second target VBAT value for a second associated linefeed driver is generated from a second VBAT control. A selected target VBAT value is generated based upon the first and second target VBAT values. A magnitude of the selected target VBAT value is not less than any maximum of a magnitude of the first and second target VBAT values. A switching regulator is controlled to provide a first generated VBAT corresponding to the selected target VBAT value, wherein the switching regulator provides a second generated VBAT having a pre-determined proportional relationship (p) to the first generated VBAT.
    Type: Grant
    Filed: October 23, 2010
    Date of Patent: June 18, 2013
    Assignee: Silicon Laboratories Inc.
    Inventors: Yan Zhou, Sean A. Lofthouse, Jonathan C. Grigsby
  • Patent number: 8462938
    Abstract: A power source circuit is connected to a power source and a digital subscriber line (DSL) modem. The power source circuit includes a boosting converter, a storage capacitor, a voltage converter, a first switch, a second switch, and a trigger. The boosting converter boosts an input voltage of the power source. The storage capacitor charges by the boosted voltage. The voltage converter converts the input voltage of the power source into a rated working voltage of the DSL modem. The trigger triggers the first switch to electrically connect the storage capacitor to the voltage converter and the second switch to electrically connect the power source to the voltage converter.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: June 11, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Shan-Kuo Sun
  • Patent number: 8462937
    Abstract: One embodiment of a power supply apparatus includes a first switcher coupled to provide VOUT from a VSUPPLY. A cascaded second switcher is coupled to provide a subscriber line interface circuit target VBAT from VOUT, wherein the first switcher is placed in one of an active mode and an inactive mode in accordance with a function of VSUPPLY and VBAT, wherein in the active mode ? VOUT VSUPPLY ? ? 1 , wherein in the inactive mode VOUT?VSUPPLY.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: June 11, 2013
    Assignee: Silicon Laboratories Inc.
    Inventors: Riad Wahby, Michael J. Mills, Jeffrey A. Whaley, Marius Goldenberg, Ion C. Tesu
  • Patent number: 8452003
    Abstract: Technique is proposed for managing total power consumption in an access network comprising two or more interface modules serving a plurality of subscriber lines, the technique comprises performing a study of real power consumption of the subscriber lines in the access network on a line-to-line basis, correlating results of the study with inventory information concerning allocation of the subscriber lines to the interface modules and power consumption ensured by said modules to the lines and, based on the correlation, assessing optimality of allocation of the subscriber lines to the interface modules.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: May 28, 2013
    Assignee: ECI Telecom, Ltd.
    Inventor: Shalom Bukimer
  • Patent number: 8442212
    Abstract: The invention provides a single digital communication link between system-side and line-side circuitry in a DAA, capable both of carrying data signals and of transferring a substantial amount of power to the line-side circuitry. The invention comprises a system-side interface circuit, a line-side interface circuit, and an isolation barrier including a transformer. Each interface circuit is capable of connection to an upstream communication circuit (either line-side or system-side), from which it may receive data signals to be transmitted across the isolation barrier to the other interface circuit, and to which it may pass data signals received across the isolation barrier from the other interface circuit. The line-side interface circuit may further include a rectifier and a storage device.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: May 14, 2013
    Assignee: Agere Systems LLC
    Inventors: Johannes G. Ransijn, Boris A. Bark, James D. Yoder, Peter Kiss
  • Patent number: 8437468
    Abstract: Methods, systems, and products are disclosed that describe a network interface to a data network. A modulator-demodulator receives a modulated carrier signal from an input connection. A power circuit connected to the input connection receives electrical power from a loop plant and provides the electrical power to the modulator-demodulator.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: May 7, 2013
    Assignee: AT&T Intellectual Property I, L. P.
    Inventor: John Alson Hicks, III
  • Patent number: 8428248
    Abstract: A system and method for mirroring power over Ethernet (PoE) registers in physical layer devices (PHYs) over a single isolation boundary. PHYs in a PoE system can be arranged in a master/slave configuration. In this configuration, a master PHY can be designed to communicate with the power source equipment controllers via a single isolation device.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: April 23, 2013
    Assignee: Broadcom Corporation
    Inventors: Wael William Diab, Nariman Yousefi, Scott Powell