Power Control, Power Supply, Or Bias Voltage Supply Patents (Class 455/127.1)
  • Patent number: 10355607
    Abstract: An excessive voltage rise of load voltage, caused by an impedance mismatching on a transmission path, is prevented, and high-frequency power is regenerated. A parallel impedance is connected to the transmission path during the voltage rise, thereby regenerating voltage caused by a standing wave and preventing excessive load voltage, together with enhancing energy usage efficiency. Establishing the parallel impedance for the load impedance, on the transmission path between the high-frequency amplifier circuit of the high-frequency power supply device and the high-frequency load, reduces impedance at the connecting position to prevent generation of excessive voltage on the transmission path, and high-frequency power is regenerated from the transmission path by the parallel impedance.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: July 16, 2019
    Assignee: KYOSAN ELECTRIC MFG. CO., LTD.
    Inventors: Itsuo Yuzurihara, Satoshi Aikawa, Ryosuke Ohma
  • Patent number: 10342101
    Abstract: Novel tools and techniques are provided for implementing wireless radio functionality in a home or building. In some embodiments, a device may comprise a light socket attachment configured to be inserted into a corresponding light socket, a communications system comprising a non-wired communications device (e.g., a wireless radio, a LiFi device, etc.), a light bulb receptacle configured to receive a light bulb, and/or circuitry configured to receive electric power through the light socket attachment, to direct a specified current to the communications system, and to direct remaining current to the light bulb receptacle. In an additional aspect, the device might be configured to implement a two-terminal or a three-terminal power connection light socket to power the communications system. In some cases, Power-Line Communications (“PLC”) may be used to transmit data over the three-terminal power connection to and from the communications system.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: July 2, 2019
    Assignee: CenturyLink Intellectual Property LLC
    Inventor: Charles I. Cook
  • Patent number: 10312732
    Abstract: An inductive power supply system includes a non-contact power supply for energizing a device. The inductive power supply system includes a communication system for enabling communication between a device and the system. The device transmits an identifier to the system. If the device does not have a transmitter, the system attempts to determine the type of device from a characterization of the power consumption by the device. If the device cannot be characterized, the inductive power supply system can be operated manually.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: June 4, 2019
    Assignee: PHILIPS IP VENTURES B.V.
    Inventors: David W. Baarman, John J. Lord, Nathan P. Stien, Wesley J. Bachman
  • Patent number: 10291447
    Abstract: During the contactless transfer of the data from PICC (1) to PCD (4) with the load modulation within PICC (1) the analog signal between the transmitting antenna (3) and the output of the driver (2) is demodulated. From the demodulated output the digital data are generated for the direction of the subsequent modification of the signal led to the PICC (1) antenna set. The digital data gather from the demodulated signal are used for the amplification and/or attenuation of the signal received on the side of the PCD (4) and/or for synchronization or other modification of the signal on the side of the PICC (1), whereby no further modification of the driver (2) is needed. The connection on the LA, LB outputs appears to the driver (2) by its characteristics, mainly by its impedance, in the same way as the connected antenna (3) of the original connection according to the prior state of the art.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 14, 2019
    Assignee: SMK Corporation
    Inventor: Miroslav Florek
  • Patent number: 10283987
    Abstract: Described herein is a smart battery unit capable of assessing its suitability to support a particular load. In some embodiments, the battery unit may receive an indication of power requirements for the particular load with respect to a period of time and may evaluate a total electrical capacity that would be required to support such a load based on those power requirements. The battery backup unit may monitor and dynamically update a full-charge capacity value related to its battery cells as well as the capacity requirement related to the load. The two values may then be compared to determine whether the battery backup unit is capable of supporting the load. If the full-charge capacity value is less than the capacity requirement for the load, then the battery unit may determine that it is not suitable for that load.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: May 7, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Ligong Wang, Darin Lee Frink
  • Patent number: 10278136
    Abstract: First and second higher layer parameters for uplink power control adjustment associated with a respective first transmit time interval duration and second transmit time interval duration can be received. A first and second transmit power control commands for power control adjustment can be received.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 30, 2019
    Assignee: Motorola Mobility LLC
    Inventors: Ravikiran Nory, Vijay Nangia, Hossein Bagheri, Ravi Kuchibhotla
  • Patent number: 10254818
    Abstract: Methods and apparatus relating to Based Priority Application Event Control (PAEC) to reduce application events are described. In one embodiment, PAEC may determine which applications (and their corresponding sub-system(s)) may cause a processor or platform to exit a low power consumption state. In an embodiment, PAEC may determine which applications (and their corresponding sub-system(s)) may resume operations after a processor or platform exit a low power consumption state. Other embodiments are also claimed and disclosed.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: April 9, 2019
    Assignee: Intel Corporation
    Inventors: Rajesh Poornachandran, Rajeev Muralidhar
  • Patent number: 10236847
    Abstract: Apparatus and methods for providing variable regulated voltages are disclosed. Variable voltage control elements can adjust a regulated voltage provided by a single voltage regulator, thereby providing a variable regulated voltage. The regulated voltage can be used in a variety of applications, for example, as a bias voltage for a power amplifier.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: March 19, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventors: Karl J. Couglar, Ryan Michael Pratt, David Kennedy Homol
  • Patent number: 10225803
    Abstract: This disclosure relates to energy budgeted cellular service recovery techniques. A wireless device may determine one or more energy budgets for service recovery. It may be determined that cellular service loss is currently occurring. Cellular service recovery may be attempted, where service recovery scan timing for the attempt to recover cellular service is determined based at least in part on the one or more energy budgets for service recovery.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 5, 2019
    Assignee: Apple Inc.
    Inventors: Viswanath Nagarajan, Lakshmi N. Kavuri, Srinivasan Nimmala, Swapna V. Iyer, Sindhu Sivasankaran Nair, Sunny Arora, Jianxiong Shi, Sami M. Almalfouh
  • Patent number: 10218552
    Abstract: A base station is provided for receiving an acknowledgement or negative acknowledgement (ACK/NACK) signal, including a transmitting unit configured to transmit a control signal using one or a plurality of CCE(s). The base station also includes a receiving unit configured to receive an ACK/NACK signal, the ACK/NACK signal being multiplied by an orthogonal sequence, by a sequence defined by a cyclic shift, and by either a first value or a second value, wherein the first value rotates a constellation of the ACK/NACK signal by 0 degrees and the second value rotates the constellation of the ACK/NACK signal by N degrees, which is different from 0 degrees.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: February 26, 2019
    Assignee: Optis Wireless Technology, LLC
    Inventors: Seigo Nakao, Daichi Imamura
  • Patent number: 10207677
    Abstract: An apparatus operable to provide a communication link between a passive entry and passive (PEPS) start system of a target vehicle and a user device operable to control the PEPS system, the apparatus comprising: i) a first wireless transceiver adapted to be installed in a first vehicle and configured to communicate with the user device and with a second wireless transceiver associated with a second vehicle; and ii) a master controller module configured in a blind rebroadcast mode: a) to receive via the first wireless transceiver a control message sent from a transmitting source and to transmit the control message via the first wireless transceiver to the second wireless transceiver associated with the second vehicle; and b) to receive via the first wireless transceiver a response message originated by the PEPS system of the target vehicle and to transmit the response message via the first wireless transceiver to the transmitting source.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: February 19, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Marcelo Lazarini, Alex Smith
  • Patent number: 10181839
    Abstract: A switch module includes a first terminal, first and second filters, and first and second switches. Impedance of the first filter for a signal in a stop band is capacitive. When the first switch is turned OFF, impedance of the first switch is capacitive, and impedance of the first filter seen from an end portion of the first switch connected to the first filter is not in a short state and impedance of the first filter seen from the first terminal is in an open state.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 15, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takayuki Tomita, Daisuke Watanabe
  • Patent number: 10177807
    Abstract: A communication module includes a power amplifier that amplifies a transmission signal having a first communication system or a second communication system and outputs an amplified signal to a signal path, a switch circuit that switches between a signal path for the first communication system and a signal path for the second communication system and outputs the amplified signal to one of the signal paths for the first communication system and the second communication system in accordance with a control signal supplied in accordance with the communication system of the transmission signal, and an impedance-matching network disposed between the power amplifier and the switch circuit, the impedance-matching network including a first variable capacitance element. The first variable capacitance element has a capacitance value that is controlled in accordance with the communication system of the transmission signal.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: January 8, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takeshi Kogure, Yuji Takematsu, Katsunari Nakazawa
  • Patent number: 10148467
    Abstract: The present application relates to a baseband communications transceiver and a method of operating the baseband communications transceiver. The transceiver comprises an analog front end transmitter section, AFE TX, with a digital to analog converter, DAC, and a transmission, TX, driver; an analog front end receiver section, AFE RX, with an analog-to-digital converter, ADC; at least one equalizer arranged downstream of the AFE RX and implemented on the basis of an adaptive filter; at least one loss encode and a channel monitoring block. The at least one loss encode is configured to determine loss value data indicative of a signal loss on the communication channel based on filter coefficients of the adaptive filter. The channel monitoring block is configured to determine an amplitude control signal, which is provided to control the amplitude of analog signals generated by the TX driver of the AFE TX.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: December 4, 2018
    Assignee: NXP B.V.
    Inventor: Sujan Pandey
  • Patent number: 10122865
    Abstract: An incoming call indicator for a telephone is structured to detect light emitted from a light source that is already present on the telephone, and that is illuminated in response to an incoming telephone call and/or waiting message. If the telephone utilizes different on/off cadences for the light to indicate external calls, internal calls, and/or waiting messages, then the cadence is detected, and an audio or visual output device is used to emit a signal corresponding to the specific detected event.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: November 6, 2018
    Inventor: Bryan Redfoot
  • Patent number: 10098181
    Abstract: Determining whether to operate in a single radio access technology (RAT) mode or a dual RAT mode for a user equipment (UE) having a radio capable of communicating using at least a first RAT and a second RAT. The UE may determine whether current path loss for the first RAT exceeds a maximum path loss. Based on the results of determining whether the current path loss for the first RAT exceeds the maximum path loss, the UE may determine whether to operate in the single RAT mode or the dual RAT mode. Accordingly, based on this determination, the UE may operate in the single RAT mode or the dual RAT mode based on the determination.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: October 9, 2018
    Assignee: Apple Inc.
    Inventors: Prashant H Vashi, Vikram B Yerrabommanahalli, Teck Yang Lee
  • Patent number: 10097145
    Abstract: A multi-mode power management circuit is provided. The multi-mode power management circuit includes a second generation (2G) amplifier circuit(s) configured to amplify a 2G radio frequency (RF) signal for transmission in a 2G RF band(s). The multi-mode power management circuit includes a pair of tracker circuitries coupled to the 2G amplifier circuit. Each tracker circuitry includes a charge pump circuitry configured to generate a voltage and a current. When the 2G amplifier circuit amplifies the 2G RF signal for transmission in the 2G RF band(s), both charge pump circuitries are controlled to provide two currents to the 2G amplifier circuit. As a result, the 2G amplifier circuit is able to amplify the 2G RF signal to a higher power corresponding to a sum of the two currents for transmission in the 2G RF band(s).
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 9, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Nadim Khlat, Jeffrey D. Potts, Michael R. Kay, Michael J. Murphy
  • Patent number: 10091744
    Abstract: An unlicensed carrier power control method is provided. Multiple transmitted power constraint parameters are acquired, and a minimum value in the multiple transmitted power constraint parameters is determined. Power control is performed according to the minimum value in the multiple transmitted power constraint parameters. An unlicensed carrier power control device and a storage medium are also provided.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: October 2, 2018
    Assignee: ZTE CORPORATION
    Inventors: Yajun Zhao, Hanqing Xu, Linmei Mo
  • Patent number: 10070249
    Abstract: Mobile phones, phone systems, and emergency location systems are described with features that assist rescue teams in locating survivors in a disaster situation where a phone user and their mobile phone are buried under rubble. To enable the phone's battery charge to last longer, an emergency power conservation mode (E-mode) is activated by either receiving a command from an external source via RF transmission, or by noticing a rapid reduction in signal strength from a tower without changing the phone's physical location. Transmissions are also made by the phone from time to time indicating the user's health condition including providing an indication of life. Portable RF devices may be deployed at grid positions to locate mobile phones by triangulation based on signals received from mobile phones while battery charge still exists for the mobile phones immediately following the disaster.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: September 4, 2018
    Inventor: Robert Osann, Jr.
  • Patent number: 10069468
    Abstract: An audio signal amplification device includes: a clock generation circuit that generates a clock for use in amplifying an audio signal; and a power supply circuit that generates direct current power, which is supplied to the clock generation circuit, from input power. The power supply circuit includes: a constant voltage generation circuit that generates direct current power of a constant voltage from the input power; a first capacitor; a first charging circuit that charges the first capacitor by using the input power; and a selection circuit. The selection circuit selects one direct current power of the direct current power generated in the constant voltage generation circuit and of direct current power charged to the first capacitor, and supplies the selected direct current power to the clock generation circuit.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: September 4, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Tadayoshi Okuda
  • Patent number: 10057073
    Abstract: A method for monitoring power delivered to a powered device over communication cabling, the method comprising: enabling a first supply power; enabling a second supply power; for the enabled first supply power, providing a first maintain power signature (MPS) functionality arranged to disable the enabled first supply power in the event that the current drawn from the enabled first supply power is less than the first undercurrent threshold; for the enabled second supply power, providing a second maintain power signature (MPS) functionality arranged to disable the enabled second supply power in the event that the current drawn from the enabled second supply power is less than the second undercurrent threshold; receiving an indication that the powered device presents a single powered device interface to both the first and the second PSE; and controlling one of the provided first and second MPS functionality responsive to the received indication.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 21, 2018
    Assignee: Microsemi P.O.E. Ltd.
    Inventor: Alon Ferentz
  • Patent number: 10051616
    Abstract: A system and method for decoding an intended transmission includes a user device that receives a downlink transmission containing a user signal intended for the user device and one or more interfering user signals directed to one or more other user devices. The user device obtains power stacking information that includes a power level for each of the user signals contained in the received downlink transmission. A channel is estimated using pilot signals in the downlink transmission. Each interfering user signal contained in the downlink transmission is demodulated and decoded using the power stacking information. The user device removes all interfering user signals from the received downlink transmission to obtain the user signal intended for the user device.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: August 14, 2018
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: William S. Song, Adam R. Margetts
  • Patent number: 10036671
    Abstract: There is disclosed a method of predicting an ambient temperature around a mobile device, wherein: a primary temperature sensor comprised in said mobile device measures a first temperature value; at least one secondary temperature sensor comprised in said mobile device measures a second temperature value; a processing unit comprised in said mobile device calculates a first prediction of an ambient temperature around the mobile device in dependence on the first temperature value and at least one parameter which is indicative of a thermal influence of one or more mobile device components on the measurements; the processing unit calculates a second prediction of said ambient temperature in dependence on the second temperature value and said parameter; the processing unit compares the first prediction with the second prediction and adjusts said parameter if the difference between the first prediction and the second prediction exceeds a predefined maximum.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: July 31, 2018
    Assignee: NXP B.V.
    Inventors: Kim Phan Le, Pei Sin Ng
  • Patent number: 10028278
    Abstract: The invention relates to a method for sending messages in an energy self-sufficient radio system, wherein an electric power for the radio system is provided by an energy converter that converts nonelectrical primary energy from the environment into electric power. The method comprises the steps of storage of at least two transmission channels in the radio system, presetting of a transmission unit of the radio system to a preferred stored transmission channel, checking of a use of the preferred transmission channel by other radio systems and if necessary changing from the preferred transmission channel to another stored transmission channel if the preferred transmission channel is in use, and sending of a predetermined radio message by the transmission unit on the preferred or the other transmission channel.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: July 17, 2018
    Assignee: ENOCEAN GMBH
    Inventor: Frank Schmidt
  • Patent number: 9990019
    Abstract: The invention relates to an apparatus (1) for powering an electrical consumer (3, 4, 5) via a data connection (6, 7, 8). The apparatus comprises a power supply (2) for supplying power to the electrical consumer via the data connection, a data receiving unit (9) for receiving data to be sent to the electrical consumer, and a controller (10) for activating the supply of power to the electrical consumer via the data connection, if data to be sent to the electrical consumer have been received and the supply of power to the electrical consumer is deactivated. The electrical consumer itself does therefore not need to receive power from the apparatus, in order to stay alert to be able to react on data connection activity, thereby reducing the power consumption.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: June 5, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventor: Matthias Wendt
  • Patent number: 9992668
    Abstract: Systems, methods, and computer program products to perform an operation comprising establishing a telephone call between a local mobile telephone and a remote telephone via an audio system in a vehicle, wherein the telephone call is audible through a set of speakers connected to the audio system in the vehicle, and responsive to the telephone call, determining that more than one person is present in the vehicle, and sending, to the remote telephone, an indication that more than one person is present in the vehicle.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: June 5, 2018
    Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventor: Srinivasa Belur
  • Patent number: 9986502
    Abstract: A network of nodes includes data nodes and at least one sink node to exchange packets between the sink node and the data nodes in a multi-hop manner. The data nodes include a battery powered node (BPN) having a transceiver, a memory, and a battery to provide energy to components of the BPN. The BPN includes a processor to determine a sleep schedule of the BPN independently from the sleep schedules of other data nodes and independently from commands transmitted by the sink node. The processor of the BPN switches the transceiver ON and OFF according to the sleep schedule to form an active period and a sleep period of the BPN. Also, the processor partitions at least part of the active period into a receiving (RX) period and a transmission (TX) period and causes the transceiver to transmit the data packets only during the TX period.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 29, 2018
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Jianlin Guo, Evripidis Paraskevas, Philip Orlik
  • Patent number: 9980271
    Abstract: Systems, devices, and methods associated with interference aware sounding reference signals are provided. A method for wireless communication includes receiving, at a wireless communication device in communication with a first base station, an interfering signal from a second base station (or other base stations); determining, at the wireless communication device, a spatial direction of the interfering signal; and transmitting, with the wireless communication device, a signal to the first base station based on the spatial direction of the interfering signal.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 22, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Joseph Binamira Soriaga, Jing Jiang, Krishna Kiran Mukkavilli, Naga Bhushan, Tingfang Ji, John Edward Smee
  • Patent number: 9974038
    Abstract: Circuits and operating methods thereof for correcting phase errors introduced by amplifiers employing gallium nitride (GaN) transistors are described. The phase errors are caused by trapping effects exhibited by the GaN transistors. The circuits described herein pre-distort the phase of the input signal to compensate for the phase error introduced by the amplifier. Thereby, the phase of the output signal of the amplifier has a reduced phase error. For example, the output signal may have a near zero (or zero) phase error.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 15, 2018
    Assignee: MACOM Technology Solutions Holdings, Inc.
    Inventor: Damian McCann
  • Patent number: 9967827
    Abstract: A method of communicating in a wireless system includes receiving resource scheduling information indicating a location of a resource for transmitting a packet, an indication of a target power level, and an indication of a first bandwidth, receiving an indication of a first transmission power level, determining a second transmission power level in accordance with the target power level, and at least one of the first bandwidth and the first transmission power level, and transmitting the packet at the location of the resource with the second transmission power level.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: May 8, 2018
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Zhigang Rong, Yunsong Yang
  • Patent number: 9967151
    Abstract: A secure remote actuation system may comprise a remote input receptor and a central signal switch. The remote input receptor may comprise a user interface for receiving user inputs from a user. The central signal switch may comprise acceptable inputs. The central signal switch may further comprise a microcontroller for obtaining and comparing the user inputs to the acceptable inputs. In the present invention, the microcontroller obtains the user inputs from the remote input receptor while the user is using the user interface.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: May 8, 2018
    Inventor: David R. Hall
  • Patent number: 9948728
    Abstract: The described embodiments transfer an activity from a source electronic device to a companion electronic device. The source electronic device receives activity information describing an activity performed in a first application at the source electronic device, determines an activity identifier for the activity information, and broadcasts an activity advertisement comprising the activity identifier. Upon receiving the activity advertisement, the companion electronic device determines whether a second application that is associated with the first application is available at the companion electronic device. Then, the companion electronic device configures the second application and commences performing the activity with the second application at the companion electronic device.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: April 17, 2018
    Assignee: Apple Inc.
    Inventors: Christopher S. Linn, Keith Stattenfield, Christopher C. Jensen, Alexander R. Ledwith, David A. Carter, Marc J. Krochmal, John J. Iarocci, Jonathan M. Grynspan
  • Patent number: 9929587
    Abstract: Disclosed is a Radio Frequency (“RF”) Energy Harvesting System (“RFHS”). The RFHS includes a phased array antenna, a power harvesting unit, and a controller. The phased array antenna is configured to receive ambient RF energy and, in response, produce an input power signal. The power harvesting unit is in signal communication with the phased array antenna and includes a rectifier module, storage module, and power threshold module. The power harvesting unit is configured to receive the input power signal and, in response, produce a rectified power signal. The controller is in signal communication with the phased array antenna and may steer the antenna beam of the phased array antenna.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: March 27, 2018
    Assignee: The Boeing Company
    Inventors: Authi A. Narayanan, Alan R. Keith
  • Patent number: 9917581
    Abstract: An electronic device comprising a first power switch connectable or connected between a first voltage source and a load is proposed. The first power switch assumes a conductive state in response to a power-on request and a non-conductive state in response to a power-off request, for energizing and deenergizing the load, so that a voltage across the first power switch tends to a positive high level when the first power switch is in the non-conductive state and to a positive low level when the first power switch is in the conductive state. The device further comprises a second power switch connectable or connected between a second voltage source and the load. The second power switch assumes a conductive state in response to the power-on request and a non-conductive state when the voltage across the first power switch is below a defined switch-off threshold lower than the high level. The second voltage source thus assists the first voltage source in powering up the load.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: March 13, 2018
    Assignee: NXP USA, Inc.
    Inventors: Sergey Sofer, Eyal Melamed-Kohen, Michael Priel
  • Patent number: 9918289
    Abstract: Provided is a communication unit that includes first and second power-amplification modules, which can be integrated. The first power-amplification module includes a first power-amplifier for a first frequency band in a first communication scheme, a second power-amplifier for a second frequency band in the first communication scheme, a third power-amplifier for a third frequency band in a second communication scheme, a fourth power-amplifier for a fourth frequency band in the second communication scheme, a first bias circuit that generates a first bias current to the first and second power-amplifiers, and a bias current circuit that converts the first bias current into a second bias current to the third and fourth power-amplifiers. The second power-amplification module includes a fifth power-amplifier for a fifth frequency band in the first communication scheme, and a second bias circuit that generates a third bias current to the fifth power-amplifier.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 13, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Tanaka, Takayuki Tsutsui, Yusuke Tanaka, Hayato Nakamura, Kazuhito Nakai
  • Patent number: 9912299
    Abstract: An amplifier architecture can include an input circuit for splitting a signal into first and second portions, and carrier and peaking amplification paths for receiving the first and second portions. The architecture can further include an output circuit having a balun transformer circuit with first and second coils, with the first coil between first and second ports, the second coil between third and fourth ports, the first and third ports coupled by a first capacitance, and the second and fourth ports coupled by a second capacitance. The first port can receive a first signal from the carrier amplification path, and the fourth port can receive a second signal from the peaking amplification path. The second port can provide a combination of the first signal and the second signal as an amplified signal. A termination circuit can be provided to couple the third port to a ground.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: March 6, 2018
    Assignee: Skyworks Solutions, Inc.
    Inventor: Aleksey A. Lyalin
  • Patent number: 9907082
    Abstract: A radio base station providing a service to a radio terminal by using plural component carriers includes a scheduler preferentially allocating, to the radio terminal, one of the component carriers that has a transmission power dynamic range whose lower limit value is lower than lower limit values of transmission power dynamic ranges of a rest of the component carriers; and a transmitter transmitting a radio signal to the radio terminal by using the allocated component carrier.
    Type: Grant
    Filed: December 16, 2012
    Date of Patent: February 27, 2018
    Assignee: FUJITSU LIMITED
    Inventor: Shinichiro Kobayashi
  • Patent number: 9906966
    Abstract: The present invention provides a network optimization system, device, and method, including: determining, by a radio resource management functional entity, radio resource statistical data that is based on a TTI time granularity, acquiring radio resource configuration information, and managing a radio resource of a cell in which the radio resource management functional entity is located; determining, by a distributed optimization functional entity, first time granularity data and a first key performance index (KPI), determining first reference configuration information, determining a first optimization plan according to the first statistical data and the first reference configuration information, and optimizing the first KPI; and determining, by a centralized optimization functional entity, second statistical data that is based on a second time granularity, and a second KPI, determining second reference configuration information, determining, according to the second statistical data and the second reference co
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: February 27, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zezhou Luo, Hongcheng Zhuang
  • Patent number: 9906192
    Abstract: The present disclosure provides an amplifier for vehicle, vehicle including the amplifier, and method for controlling the amplifier for vehicle, which uses a 48 volt (V) battery voltage and adjusts speaker output according to variable audio signals, thereby minimizing the size of the amplifier, reducing conversion loss of a Direct Current (DC)-to-DC converter, and increasing output efficiency. In accordance with one aspect of the present disclosure, An amplifier for vehicle includes a first input port for receiving a first voltage; a second input port for receiving a second voltage lower than the first voltage; at least one power Integrated Chip (power IC) connected to a speaker for using a voltage received from the first input port; and a controller for controlling the power IC using a voltage received from the second input port.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: February 27, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Seung Woo Lee
  • Patent number: 9900740
    Abstract: The objective is to find the amount of ambient RF energy available in a given location to power battery free products. This was achieved by designing and building a novel, handheld, low cost, system to capture the ambient RF signal (such as cellular signals, TV broadcasting waves, and WiFi signals), convert to DC power level that can be harvested at any given location, and visually GeoMap it using the GPS coordinates. The constructed hardware portion of the system consists of the Arduino microcontroller, the RF Power Detector chip, wideband antenna, and Bluetooth Module. The Arduino is programmed to capture the RF Power data from the RF Power Detector chip and send it to the Mobile Application. The developed Android App is able to communicate with the Arduino via Bluetooth and receive the captured RF Power data from it. The data is uploaded to the web server along with GPS coordinates. The created website stores the uploaded data from the app to the online database.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: February 20, 2018
    Inventor: Vikram Ilangkadhir Pandian
  • Patent number: 9894612
    Abstract: Embodiments of the disclosure relate to reducing power consumption in a remote unit of a wireless distribution system (WDS) for intermodulation product suppression. Intermodulation products generated by a power amplifier circuit can leak from a downlink signal path into an uplink signal path to degrade sensitivity of the uplink signal path in a remote unit. In this regard, the remote unit is configured to measure a power of the leaked intermodulation products and enables a selected number of power amplifiers in the power amplifier circuit for reducing the measured power of the leaked intermodulation products to a predetermined threshold. By enabling only the selected number of power amplifiers based on the measured power of the leaked intermodulation products, it is possible to avoid enabling an excessive number of power amplifiers in the power amplifier circuit, thus helping to reduce power consumption for intermodulation product suppression.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: February 13, 2018
    Assignee: Corning Optical Communications Wireless Ltd
    Inventor: Motti Yakobi
  • Patent number: 9876472
    Abstract: An apparatus includes a first predistorter configured to calculate a first predistortion parameter and configured to distort an input signal using the first predistortion parameter to output a first distortion signal, a second predistorter configured to calculate a second predistortion parameter and configured to distort the first distortion signal using the second predistortion parameter to output a second distortion signal, a power supply configured to receive the first distortion signal to generate a first envelope signal, and configured to limit a bandwidth of the first envelope signal to obtain a second envelope signal to supply a source voltage, and a power amplifier configured to receive the source voltage and to output an output signal obtained by amplifying the second distortion signal.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: January 23, 2018
    Assignees: Samsung Electro-Mechanics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Yong Hoon Lee, Eui Rim Jeong, Sang Il Lee, Soon Il Hong, Soon Chan Park, Kwang Pyo Lee, Jong Ok Ha
  • Patent number: 9857862
    Abstract: A power supply for a radio frequency (RF) power amplifier that amplifies an RF input signal into an RF output signal and a method of operation in the power supply. The power supply comprises a first power converter to convert an input voltage to the power supply into a first supply voltage of the RF power amplifier. The power supply comprises a second power converter to receive the input voltage and the first supply voltage and to selectively convert either the input voltage or the first supply voltage into at least a portion of a second supply voltage of the RF power amplifier.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 2, 2018
    Assignee: QUANTANCE, INC.
    Inventors: Serge Francois Drogi, Marcus Charles Mertsching, Luigi Panseri
  • Patent number: 9831974
    Abstract: A boundary of a wireless network is monitored for incoming wireless signals that may interfere with an ability of a first wireless computing device to connect to the wireless network within the boundary of the wireless network. For an incoming wireless signal determined to interfere with the ability of the first wireless computing device to connect to the wireless network within the boundary of the wireless network, a directional opposing outgoing wireless signal is emitted to counteract the incoming wireless signal and to stop the incoming wireless signal from further interfering with the ability of the first wireless computing device to connect to the wireless network within the boundary of the wireless network.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: November 28, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ira L. Allen, Lambert S. Berentsen, Gregory J. Boss
  • Patent number: 9831981
    Abstract: A control unit for controlling wireless data transmissions in a mobile communications system provided on board an aircraft, a mobile communications system having a control unit of this type, an associated method for controlling wireless data transmissions in a mobile communications system provided on board an aircraft, and a computer program for carrying out the method. The control unit comprises a generating component for generating a band-limited masking signal for masking terrestrial mobile communications signals in a first frequency band and a combining component for combining the band-limited masking signal and a service signal for the wireless transmission of data in a second frequency band different from the first frequency band. The combining component is configured to combine the masking signal and the service signal so that terrestrial mobile communications signals in a third frequency band formed by overlapping of the first and the second frequency band are masked.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: November 28, 2017
    Assignee: Airbus Operations GmbH
    Inventor: Martin Schirrmacher
  • Patent number: 9826412
    Abstract: Key performance indicators for self-organizing networks are dynamically updated and/or selected. A method includes evaluating a network condition, ranking key performance indicators (KPIs) based on the network condition resulting in ranking information, and determining weights of executing sets of instructions. The determining is based on the ranking and an association between the executing sets of instructions and the KPIs associated with the ranking information. Another method includes evaluating a network condition, and changing a value of a target of a KPI from a first value to a second value based on a change in the network condition from a first network condition to a second network condition. Another method includes evaluating a network condition, determining weighting factors for respective KPIs, wherein the weighting factors are based on evaluation of the network condition, and generating composite KPI information based, at least, on applying the weighting factors to the respective KPIs.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: November 21, 2017
    Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLC
    Inventors: Thomas W. Henderson, Melanie Sater
  • Patent number: 9807542
    Abstract: An operating method of an electronic device is provided. The method includes selecting a file generated by the electronic device or received from another electronic device and transmitting file information based on the file to a memory device through short range communication.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: October 31, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Ho Baek, Seo-Yeon Park
  • Patent number: 9804660
    Abstract: A data storage device includes a central processing unit (CPU); a peripheral device; a power management unit (PMU) configured to control a power supply to the CPU and the peripheral device; and a receiver configured to transmit a second signal to the PMU through a second transmission path after transmitting a first signal to the CPU through a first transmission path, the receiver being configured such that the first and second signals transmitted by the receiver are signals that were output from a host.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: October 31, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Min Jeong, Hyun Wook Lee, Jae Chun Park, Soon Jae Won
  • Patent number: 9807703
    Abstract: A high-frequency signal processing apparatus and a wireless communication apparatus can achieve a decrease in power consumption. For example, when an indicated power level to a high-frequency power amplifier is equal to or greater than a second reference value, envelope tracking is performed by causing a source voltage control circuit to control a high-speed DCDC converter using a detection result of an envelope detecting circuit and causing a bias control circuit to indicate a fixed bias value. The source voltage control circuit and the bias control circuit indicate a source voltage and a bias value decreasing in proportion to a decrease in the indicated power level when the indicated power level is in a range of the second reference value to the first reference value, and indicate a fixed source voltage and a fixed bias value when the indicated power level is less than the first reference value.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: October 31, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Tanaka, Kiichiro Takenaka, Takayuki Tsutsui, Taizo Yamawaki, Shun Imai
  • Patent number: 9793976
    Abstract: A transmission power management device including: a memory, and a processor coupled to the memory and configured to: acquire a first path loss between a first relay station and a second relay station, the first relay station relaying a first signal, the second relay station relaying a second signal, and adjust a first transmission power of the first signal by the first relay station based on the first path loss.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: October 17, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Shunsuke Fujio, Dai Kimura