Power Control, Power Supply, Or Bias Voltage Supply Patents (Class 455/127.1)
  • Patent number: 11109410
    Abstract: The present invention relates to a wireless access system supporting an unlicensed band. According to this disclosure, a method by which a terminal performs LBT in a wireless access system supporting an unlicensed band and multiple carriers can comprise the steps of: receiving, from a base station, each of uplink grants for scheduling uplink channels on two or more component carriers (CCs); randomly selecting a first CC on which a first LBT is to be performed from among the two or more CCs; performing the first LBT on the selected first CC: and performing a second LBT on the remaining CCs among the two or more CCs, wherein the first LBT can be a random back-off-based LBT for performing a random back-off by a random back-off counter value, and the second LBT can be a channel sensing-based LBT for sensing a channel during a predetermined time interval before uplink transmission.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: August 31, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Seonwook Kim, Joonkui Ahn, Hanjun Park
  • Patent number: 11095318
    Abstract: An antenna module includes a multilayer board, a radio frequency (RF) chip, and a first active device array. The multilayer board includes an antenna that transmits and receives electromagnetic waves. The RF chip is on a bottom surface of the multilayer board, and includes transmission circuits each of which constitutes a part of each of transmission paths for generating RF signals to be provided to the antenna. The first active device array is on the bottom surface of the multilayer board, and includes a first group of active devices respectively included in a portion of power amplifiers in the transmission paths of the transmission circuits, and first input pins and first output pins respectively connected to electrodes of the first group of active devices.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: August 17, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youngmin Kim, Hongjong Park, Daeyoung Yoon, Sunwoo Lee, Youngki Lee, Dooseok Choi
  • Patent number: 11083903
    Abstract: Devices, systems, and methods for coupling with an implantable neurostimulator for delivering one or more electrical pulses to a target region within a patient's body are disclosed herein. A device, such as a charger, can include: a power source for storing electrical energy; a resonant circuit that can have a plurality of selectable natural frequencies; a driver coupled to the power source and the resonant circuit; and a processor coupled to the resonant circuit to control the natural frequency of the resonant circuit. The processor can control the natural frequency of the resonant circuit according to stored data associated with the implantable neurostimulator.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: August 10, 2021
    Assignee: AXONICS, INC.
    Inventors: Rabih Nassif, Steve Hankins, Christopher J. Bowes
  • Patent number: 11088446
    Abstract: Disclosed are systems and methods for improving the quality and strength of a wireless signal connecting a mobile station and a base station, in situations where the mobile station is able to utilize a directional antenna. The system for improving system quality comprise, for example, a directional antenna; an antenna power level detector which detects a signal strength; a signal inverter wherein the signal inverter generates a conditioned signal from the detected signal strength; an indicator wherein the indicator provides an indicator of a signal quality level from the detected signal strength; a reorientation decision logic wherein the reorientation decision logic communicates an instruction for movement of the directional antenna, wherein the detected signal strength is correlated to a projected orientation of the directional antenna at a time the signal strength is detected, and further wherein an antenna orientation control loop communicates a reorientation instruction for the directional antenna.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: August 10, 2021
    Assignee: TAOGLAS GROUP HOLDINGS LIMITED
    Inventor: Christopher M. Anderson
  • Patent number: 11082009
    Abstract: An envelope tracking (ET) power amplifier apparatus is provided. In a non-limiting example, the ET power amplifier apparatus includes a single ET integrated circuit (ETIC) configured to support at least a pair of amplifier circuits for amplifying different radio frequency (RF) signals. One of the amplifier circuits may be configured to amplify a respective RF signal to a higher power and thus will operate based on an ET voltage whenever possible. Another amplifier circuit, on the other hand, may be configured to amplify a respective RF signal to a relatively lower power and thus will only operate based on the ET voltage when the other amplifier circuit is inactive. By employing a single ETIC, it may be possible to reduce footprint of the ET power amplifier apparatus, thus making it possible to fit the ET power amplifier apparatus into a small form factor electronic device, such as a wearable device.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: August 3, 2021
    Assignee: Qorvo US, Inc.
    Inventor: Nadim Khlat
  • Patent number: 11037606
    Abstract: Methods for powering up a memory device, for example, are disclosed. One such memory device includes power up circuitry configured to receive an external power supply and to provide an internal power supply to the memory device upon receipt of a command. The power up circuitry may be configured to provide the internal power supply limited to a peak current, or may be configured to provide the internal power supply not limited to a peak current. The memory device may be, for example, a synchronous dynamic random access memory (SDRAM) device or Flash memory.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: June 15, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Ted Pekny, Jeff Yu
  • Patent number: 11026189
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication. In certain aspects, the method generally includes determine a transmission power for each of at least one first sounding reference signal (SRS) to be transmitted using at least one first antenna, wherein the determination is based on whether the at least one first SRS is transmitted using an amplifier of a transmit chain configured for transmissions using a second antenna, and transmitting the at least one first SRS based on the determination.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 1, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Timo Ville Vintola, Peter Gaal, Alberto Rico Alvarino, Yi Huang, Vishal Mahajan, Andrew Puayhoe See, Alexandros Manolakos
  • Patent number: 11018632
    Abstract: An envelope tracking power amplifier module and an envelope tracking method are provided. The envelope tracking power amplifier module includes a power amplifier and a linear amplifier coupled to the power amplifier and configured to receive and amplify an envelope signal and provide the amplified envelope signal to the power amplifier. The power amplifier is configured to receive and amplify a signal according to the amplified envelope signal. The envelope tracking method includes: providing a signal to the power amplifier; deriving an envelope phase of the signal, the envelope phase corresponding to an output power of the power amplifier; providing an envelope signal including the envelope phase to the envelope tracking module; the envelope tracking module providing the amplified envelope signal to the power amplifier; and the power amplifier amplifying the signal according to the amplified envelope signal and outputting the amplified signal at the output power.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: May 25, 2021
    Assignee: IWAVE TECHNOLOGIES CO., LTD.
    Inventors: Shau-Gang Mao, Chong-Yi Liou, Wei-Ting Tsai, Yu-Yao Chen, Zheng-An Peng, Shih-Ping Huang, Chien-Bang Chen
  • Patent number: 10985705
    Abstract: The present disclosure relates to pre-distortion processing methods and apparatus. One example apparatus includes a first pre-distortion part and a second pre-distortion part. The first pre-distortion part includes N digital pre-distortion (DPD) processors. The first pre-distortion part and the second pre-distortion part perform pre-distortion processing on a signal to support a power amplifier in performing linear amplification on the signal.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: April 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Vorobyev Andrey, Yiwei Hong, Ting Li
  • Patent number: 10948970
    Abstract: A low power microcontroller that includes a low power node controller adapted to retrieve data from peripheral devices is presented. The microcontroller contains a state machine coupled to a storage medium, which is adapted to store a set of instructions executable by the state machine. The microcontroller also contains a power domain controller, which is adapted to enable the state machine upon receipt of a notification signal. As an option, the microcontroller contains a plurality of communication controllers for communicating with a plurality of external devices, wherein the power domain controller includes a register which may be read by the state machine to identify a communication controller among the plurality controllers. Also, a method of operating a microcontroller for use with an external device is presented. The method provides a state machine which executes a set of instructions.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: March 16, 2021
    Assignee: Dialog Semiconductor B.V.
    Inventors: Nikolaos Moschopoulos, Konstantinos Georgios Kottikas, Dimitrios Bekiaris
  • Patent number: 10904840
    Abstract: A transmission power setting method includes selecting one of a plurality of channels of a communication system as a target channel for communication, and, based on pre-set communication parameters, setting a transmission power of the communication system to be a maximum transmission power corresponding to the target channel. The pre-set communication parameters include maximum transmission powers for the plurality of channels.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 26, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Yan Wang, Naibo Wang, Wei Fan, Han Huang
  • Patent number: 10886952
    Abstract: A method includes identifying a first output terminal of a radio frequency front end (RFFE) switch including a single pole input terminal and a number (N) of output terminals, the first output terminal selectively connected to a single RF band path. Each of the N output terminals is a component of a respective one of N throws of the RFFE switch, with N being greater than one. The N output terminals include the first output terminal corresponding to a first throw of the N throws and at least one additional output terminal not connected to any radio frequency (RF) band path. The at least one additional output terminal includes a second output terminal corresponding to a second throw of the N throws. The method includes forming a parallel connection between the single pole input terminal and the single RF band path. The parallel connection provides at least two parallel branches for routing RF signals being transceived between the single pole input terminal and the single RF band path.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: January 5, 2021
    Assignee: Motorola Mobility LLC
    Inventors: Brian H. Bremer, John R. Mura, Armin Klomsdorf
  • Patent number: 10886787
    Abstract: A power supply apparatus, that can wirelessly supply power to a plurality of power receiving apparatuses, comprises: a plurality of antennae; and a control unit, wherein the control unit carries out control so that information pertaining to sending timings of calibration signals is sent, via the plurality of antennae, to the plurality of power receiving apparatuses; the control unit carries out control so that calibration signals sent from the plurality of power receiving apparatuses are received via the plurality of antennae; and the control unit controls an output of each antenna based on the calibration signals sent from the plurality of power receiving apparatuses so that power is supplied wirelessly to the plurality of power receiving apparatuses from corresponding ones of the plurality of antennae.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: January 5, 2021
    Assignee: CANON KABUSHIKI KAiSHA
    Inventors: Yudai Fukaya, Shogo Hachiro, Katsuya Nakano, Jun Suzuki, Koji Nishimori, Yoshihiko Okamoto
  • Patent number: 10862529
    Abstract: Technology for a signal booster is disclosed. The signal booster can include a signal amplifier configured to amplify and filter signals for a wireless device. The signal booster can include one or more detectors configured to detect power levels of the signals. The signal amplifier can include at least one of: one or more bypassable amplifiers or one or more switchable band pass filters that are configurable depending on detected power levels of the signals.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: December 8, 2020
    Assignee: Wilson Electronics, LLC
    Inventors: Patrick Lee Cook, Christopher K. Ashworth, Michael James Mouser
  • Patent number: 10845073
    Abstract: A method (300) for temperature control in a radio receiver includes: receiving (301) a sequence of radio subframes, wherein each radio subframe (200) in the sequence of radio subframes comprises at least one control region (201) and at least one data region (202); monitoring (302) temperature information indicating a system temperature (T) of the radio receiver; and if the temperature information indicates that the system temperature (T) exceeds (303) a first threshold (T1), transition (304) to a second state (305) in which receiving the at least one data region is disabled.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: November 24, 2020
    Assignee: Apple Inc.
    Inventors: Sven Dortmund, Kenan Kocagoez, Jose A. Cesares Cano, Wolfgang Molzer, Matthias Obermeier
  • Patent number: 10840874
    Abstract: A matching device includes a directional coupler, a matching circuit including a first variable capacitance capacitor and a second variable capacitance capacitor, and a control unit. The control unit calculates a reflection coefficient on the basis of a forward power and a reflected power that are detected by the directional coupler, changes the capacitance value of the first variable capacitance capacitor and the capacitance value of the second variable capacitance capacitor such that the calculated reflection coefficient becomes smaller, and makes the cycle of calculation of the set values of the capacitance value of the first variable capacitance capacitor and the capacitance value of the second variable capacitance capacitor shorter than the cycle of acquisition of the capacitance value of the first variable capacitance capacitor and the capacitance value of the second variable capacitance capacitor.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: November 17, 2020
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshiyuki Oshida, Naoya Fujimoto, Norikazu Kato
  • Patent number: 10826714
    Abstract: The present invention is directed to device and method for monitoring power input to a networked device The device includes a housing; an optional power converter configured for AC to DC, AC to AC or DC to DC conversion; a controller enclosed in the housing and configured to send one or more notifications and receive one or more instructions from a remote server; a relay operably coupled to the controller; a first circuit electrically connecting the power converter to power mains; a second circuit electrically connecting the power converter to the relay; and a third circuit electrically connecting the relay to the networked device, wherein the controller is configured to determine alternating current status on the first circuit and a direct current status on the second circuit or the third circuit.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: November 3, 2020
    Inventors: Christopher T Kelly, Philip E. Kelly
  • Patent number: 10804856
    Abstract: A power amplifier includes a distributor distributing an input first signal to a second signal and a third signal delayed by about 2? degrees (45<?<90) from the second signal, a first amplifier amplifying the second signal and outputting a fourth signal when a first-signal power level is not lower than a first level, a second amplifier amplifying the third signal and outputting a fifth signal when the first-signal power level is not lower than a second level that is greater than the first level, a first phase shifter receiving the fourth signal and outputting a sixth signal delayed by about ? degrees from the fourth signal, a second phase shifter receiving the fifth signal and outputting a seventh signal advanced by about ? degrees from the fifth signal, and a combiner combining the sixth and seventh signals and outputting an amplified signal of the first signal.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: October 13, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kiichiro Takenaka
  • Patent number: 10805886
    Abstract: A mobile station for use in a wireless network that operates according to the Long-Term Evolution Advanced (LTE-A) standard is configured to transmit an aperiodic sounding reference signal (SRS) to a base station in response to a triggering grant received from the base station. The bandwidth on which the mobile station transmits the aperiodic SRS depends on a type of the triggering grant. The type of the triggering grant is one of a downlink grant, an uplink multiple-input, multiple-output (MIMO) grant, and an uplink single-input, multiple-output (SIMO) grant.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Jianzhong Zhang
  • Patent number: 10784636
    Abstract: An apparatus is disclosed for an asymmetrical quadrature hybrid coupler. In an example aspect, an apparatus comprises a quadrature hybrid coupler. The quadrature hybrid coupler comprises a shared port, a through port, a coupled port, and an isolated port. The quadrature hybrid coupler also comprises at least one transformer, which comprises a first inductor and a second inductor. The first inductor is connected between the shared port and the coupled port. The second inductor is connected between the isolated port and the through port. The second inductor is directly connected to the isolated port. An inductance of the first inductor is different from an inductance of the second inductor.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: September 22, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Marco Vigilante, Chinmaya Mishra
  • Patent number: 10784906
    Abstract: A transmitting device of the present disclosure include: a first driver that includes a first sub-driver unit which operates on a basis of a first control signal and a second sub-driver unit which operates on a basis of, of the first control signal and a second control signal, a signal selected through a first selecting operation, and is configured to be able to set a voltage at a first output terminal; and a controller that controls the first selecting operation.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: September 22, 2020
    Assignee: Sony Corporation
    Inventor: Takanori Saeki
  • Patent number: 10778041
    Abstract: Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pockets of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pockets of energy may manifest as a three-dimensional field (e.g., transmission field) where energy may be harvested by a receiver positioned within or nearby the pocket of energy.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: September 15, 2020
    Assignee: Energous Corporation
    Inventor: Michael A. Leabman
  • Patent number: 10764830
    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: April 12, 2018
    Date of Patent: September 1, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Zhigang Rong, Yunsong Yang
  • Patent number: 10757657
    Abstract: A mobile station for use in a wireless network that operates according to the Long-Term Evolution Advanced (LTE-A) standard is configured to transmit an aperiodic sounding reference signal (SRS) to a base station in response to a triggering grant received from the base station. The bandwidth on which the mobile station transmits the aperiodic SRS depends on a type of the triggering grant. The type of the triggering grant is one of a downlink grant, an uplink multiple-input, multiple-output (MIMO) grant, and an uplink single-input, multiple-output (SIMO) grant.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: August 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Jianzhong Zhang
  • Patent number: 10742192
    Abstract: A tunable notch filter is disclosed with a first acoustic resonator coupled in series with a first inductive element between a filter input node and a filter output node. A first capacitor is coupled in parallel with the first acoustic resonator and the first inductive element. In at least one embodiment, the first capacitor is configured to have variable capacitance that is electronically tunable by way of an electronic controller. A second acoustic resonator is coupled in series with a second inductive element between the filter output node and a signal ground node. A second capacitor is coupled in parallel with the second inductive element. In at least one embodiment, the second capacitor is electronically tunable. The tunable notch filter is configured to provide a highly selective notch filter response between the filter input node and the filter output node with high attenuation.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: August 11, 2020
    Assignee: Qorvo US, Inc.
    Inventor: Nadim Khlat
  • Patent number: 10735034
    Abstract: A wideband polar modulation transmitter includes a power amplifier (PA), a PA driver, a dynamic power supply (DPS), a PA driver VH controller, and a phase modulator. The phase modulator modulates a radio frequency (RF) carrier by an input phase modulating signal PM(t) to produce a phase modulated RF carrier. Meanwhile, the DPS produces a DPS voltage for the PA that follows an input amplitude modulating signal AM(t). Using the phase modulated RF carrier, the PA driver generates a PA drive signal VDRV for driving the PA. The PA drive signal VDRV has a high drive level VH and a low drive level VL. The PA driver VH controller is configured to control the magnitude of the high drive level VH so that it remains sufficiently high to force the PA to operate in a compressed mode (C-mode) most of the time but lowers the high drive level VH to force the PA to operate in a product mode (P-mode) during times low-magnitude events occur in the DPS voltage.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: August 4, 2020
    Assignee: Eridan Communications, Inc.
    Inventor: Quentin Diduck
  • Patent number: 10707548
    Abstract: An impedance matching device includes a tapered strip line and a plurality of strip lines. The tapered strip line extends in a first direction on a substrate and has a width in a second direction perpendicular to the first direction. The tapered strip line includes first to n-th segments having identical lengths and different widths, wherein the ‘n’ is a natural number of two or more. The plurality of strip lines are connected to the n-th segment such that an input signal received through the first segment is split.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: July 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Hyun Kim, Sooyong Park
  • Patent number: 10700641
    Abstract: The present invention discloses a mixer bias circuit including a first reference voltage generation circuit, an amplifier, a first transistor array, a first switch array, a second reference voltage generation circuit, a second transistor array, a second switch array, a first resistive component, and a second resistive component. The mixer bias circuit provides multiple bias voltages by dynamically tracking the common mode voltage of a trans-impedance amplifier (TIA) and compensates for imbalance and mismatch effects by asymmetrically trimming the bias voltages to improve the second-order intercept point of a radio frequency (RF) receiver front-end (RXFE).
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: June 30, 2020
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Ka-Un Chan, Rong-Fu Yeh, Chao-Huang Wu
  • Patent number: 10615827
    Abstract: The present disclosure discloses a local oscillator feedthrough signal correction apparatus, including a microprocessor control unit, a first digital-to-analog converter, a second digital-to-analog converter, a mixer, a local oscillator, a signal output line, a signal splitter, and a detector tube. The signal splitter is disposed in the signal output line, and the first digital-to-analog converter and the second digital-to-analog converter are configured to provide the mixer with quadrature direct current components VI and VQ used for local oscillator feedthrough signal correction. The mixer outputs a local oscillator feedthrough signal to the signal output line. The signal splitter obtains the local oscillator feedthrough signal by means of splitting, and the detector tube detects the local oscillator feedthrough signal.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 7, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tengteng Ji, Junpeng Wang, Bin Ding, Haiming Fan
  • Patent number: 10603500
    Abstract: Devices, systems, and methods for coupling with an implantable neurostimulator for delivering one or more electrical pulses to a target region within a patient's body are disclosed herein. A device, such as a charger, can include: a power source for storing electrical energy; a resonant circuit that can have a plurality of selectable natural frequencies; a driver coupled to the power source and the resonant circuit; and a processor coupled to the resonant circuit to control the natural frequency of the resonant circuit. The processor can control the natural frequency of the resonant circuit according to stored data associated with the implantable neurostimulator.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: March 31, 2020
    Assignee: AXONICS MODULATION TECHNOLOGIES, INC.
    Inventors: Rabih Nassif, Steve Hankins, Christopher J. Bowes
  • Patent number: 10601451
    Abstract: A method includes providing a radio frequency front end (RFFE) switch including a single pole input terminal and a number (N) of output terminals. Each of the N output terminals is a component of a respective one of N throws of the RFFE switch, with N being greater than one. The N output terminals include a first output terminal corresponding to a first throw of the N throws and at least one additional output terminal not connected to any radio frequency (RF) band path. The at least one additional output terminal includes a second output terminal corresponding to a second throw of the N throws. The method includes connecting the first output terminal to a single RF band path. The method includes forming a parallel connection between the single pole input terminal and the single RF band path. The parallel connection provides at least two parallel branches for routing RF signals being transceived between the single pole input terminal and the single RF band path.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: March 24, 2020
    Assignee: Motorola Mobility LLC
    Inventors: Brian H. Bremer, John R. Mura, Armin Klomsdorf
  • Patent number: 10575256
    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: February 20, 2019
    Date of Patent: February 25, 2020
    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: 10547425
    Abstract: A method and a system of setting up a reference signal in a radio communication system are disclosed. The radio communication system includes a serving cell and a neighboring cell, and a mobile terminal of the serving cell uses the same temporal frequency resource to receive a serving resource block from the serving cell and an interference resource block from the neighboring cell. The method includes setting up a user-specific reference signal in the interference resource block and puncturing at the same temporal frequency position as the temporal frequency position at which the user-specific reference signal is set up on the interference resource block of the serving resource block to prevent any signal from being transmitted at the punctured temporal frequency position. When the method and the system are used and the interference power between cells is measured, it is possible to effectively reduce feedback overhead in a coordinated beamforming.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: January 28, 2020
    Assignee: SUN PATENT TRUST
    Inventors: Hui Tong, Ming Xu, Masayuki Hoshino, Daichi Imamura
  • Patent number: 10548144
    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: April 18, 2018
    Date of Patent: January 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Joseph Binamira Soriaga, Jing Jiang, Krishna Kiran Mukkavilli, Naga Bhushan, Tingfang Ji, John Edward Smee
  • Patent number: 10542498
    Abstract: Methods, tests systems and computers for controlling power delivered to a test volume are provided. According to one aspect, an electromagnetic test system has at least one operational path having a channel emulator output, an amplifier, an attenuator and an antenna. A method includes, for a given desired output power level, C, setting a channel emulator output power to a power level B, and setting the attenuator to a setting A, such that C is a function of B and A. In such embodiments, the attenuation A is calculated based on an upper limit output power of the channel emulator and the desired output power C.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: January 21, 2020
    Assignee: ETS-Lindgren, Inc.
    Inventor: Michael David Foegelle
  • Patent number: 10530920
    Abstract: A portable device includes one or more memories and travel mode control circuitry coupled to the one or more memories. The travel mode control circuitry, in operation, monitors motion data and temperature data to detect a first travel state of the device. When the first travel state of the device is detected, motion data and pressure data are monitored to detect a transition from the first travel state to a second travel state of the device. When the transition to the second travel state of the device is detected, one or more control signals are generated to cause the device to enter a first travel mode of operation.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: January 7, 2020
    Assignee: STMICROELECTRONICS, INC.
    Inventors: Mahaveer Jain, Mahesh Chowdhary
  • Patent number: 10505769
    Abstract: A transmitter for providing channel equalization that includes a first driver and second driver having a high pass filter. The first driver generates a first output signal representing a digital input signal. The second driver generates a second output signal representing a high pass filtered version of the digital input signal. The first and second output signals are summed to provide a third output signal that is channel equalized for transmission over a channel.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: December 10, 2019
    Assignee: Rambus Inc.
    Inventor: John Wood Poulton
  • Patent number: 10491158
    Abstract: A wireless communication apparatus includes an oscillator circuit configured to generate an oscillation signal corresponding to an oscillation frequency determined by an antenna, and a bias generator circuit configured to reconfigure an operation region mode of a transistor included in the oscillator circuit by adjusting a bias signal in response to an enable signal.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seok Ju Yun
  • Patent number: 10483925
    Abstract: A circuit module includes a power amplifier, a switch, and a bypass capacitor. The power amplifier has a signal input node coupled to an input signal, a signal output node to generate an output signal, and a power input node coupled to a supply output signal of a supply modulator. The switch is coupled between the power input node of the power amplifier and the bypass capacitor. The bypass capacitor is an equivalently removable bypass capacitor coupled between the switch and a ground level.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 19, 2019
    Assignee: MEDIATEK INC.
    Inventors: Sheng-Hong Yan, Da-Wei Sung, Chen-Yen Ho, Chia-Sheng Peng, Chien-Wei Kuan
  • Patent number: 10483926
    Abstract: Power amplifier module with power supply control. A power amplification control system can include an interface configured to receive a transceiver control signal from a transceiver. The power amplification control system can include a power amplifier control component configured to generate a power amplifier control signal based on the transceiver control signal from the transceiver and a power supply control component configured to generate a power supply control signal based on the transceiver control signal from the transceiver and to generate the power supply control signal based on a local control signal from the power amplifier control component.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: November 19, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventor: David Steven Ripley
  • Patent number: 10448089
    Abstract: The present disclosure provides a network interface device, including an active downstream radio-frequency (RF) signal path connecting an entry port and an active port. The network interface device also includes a passive downstream RF signal path connecting the entry port and a passive port. The network interface device further includes an active upstream RF signal path connecting the entry port and the active port. Additionally, network interface device includes a passive upstream RF signal path connecting the entry port and the passive port. Moreover, the network interface device includes a downstream directional coupler having an input port, a through port, and a coupled port. The passive downstream RF signal path comprises the input port of the downstream directional coupler and the coupled port of the downstream directional coupler.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 15, 2019
    Assignee: PPC BROADBAND, INC.
    Inventors: Paul Bailey, Yan Li
  • Patent number: 10425266
    Abstract: A method for reducing the peak factor of a signal transmitted in a frequency band comprising several channels, the signal using a plurality of channels in the band comprises: a step of clipping the signal, a step of subtracting the clipped signal from the signal, so as to obtain a peak signal, a step of filtering the peak signal with the aid of a multichannel filter configured to comply with a predetermined spectral mask for each of the channels used by the signal, and a step of subtracting the filtered peak signal from the signal. A device for emitting a multichannel signal implementing the method for reducing the peak factor is also provided.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: September 24, 2019
    Assignee: THALES
    Inventors: Sylvain Traverso, Jean-Luc Rogier, Jean-Yves Bernier
  • Patent number: 10419057
    Abstract: A current mirror circuit connectible to an amplifier circuit to set a bias point thereof includes a current mirror circuit, and a bias resistor connected thereto. The bias resistor is connectible to the amplifier circuit. A first helper circuit is connected in parallel with the bias resistor, and is selectively activated for a first predetermined duration by a first control signal. The activated first helper circuit defines a lower resistance path relative to the bias resistor to shorten a rising transient response of the amplifier circuit as the current mirror circuit is activated.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: September 17, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventors: Lothar Musiol, Yang Liu, Parham Hesamaddin, Lisette L. Zhang, Oleksandr Gorbachov
  • Patent number: 10418945
    Abstract: Aspects of this disclosure relate to compensating for dynamic error vector magnitude. A compensation circuit can generate a compensation signal based at least partly on an amount of time that an amplifier, such as a power amplifier, is turned off between successive transmission bursts of the amplifier. For example, the compensation circuit can charge a capacitor based at least partly on an amount of time that the amplifier is turned off between successive transmission bursts and generate the compensation signal based at least partly on an amount of charge stored on the capacitor. A bias circuit can receive the compensation signal, generate a bias signal based at least partly on the compensation signal, and provide the bias signal to the amplifier to bias the amplifier.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: September 17, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventor: Edward John Wemyss Whittaker
  • Patent number: 10411653
    Abstract: A power amplifier includes a distributor distributing an input first signal to a second signal and a third signal delayed by about 2? degrees (45<?<90) from the second signal, a first amplifier amplifying the second signal and outputting a fourth signal when a first-signal power level is not lower than a first level, a second amplifier amplifying the third signal and outputting a fifth signal when the first-signal power level is not lower than a second level that is greater than the first level, a first phase shifter receiving the fourth signal and outputting a sixth signal delayed by about ? degrees from the fourth signal, a second phase shifter receiving the fifth signal and outputting a seventh signal advanced by about ? degrees from the fifth signal, and a combiner combining the sixth and seventh signals and outputting an amplified signal of the first signal.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: September 10, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kiichiro Takenaka
  • Patent number: 10407006
    Abstract: A system for a controller area network (CAN) transceiver of a motor vehicle including a main power supply, the main power supply being unregulated, a secondary power supply set above a minimum operating voltage of the CAN transceiver, the secondary power supply being regulated, a first diode, the first diode allowing the main power supply to power the CAN transceiver, a second diode, the second diode allowing the secondary power supply to power the CAN transceiver, wherein when the main power supply has a low cranking voltage below a normal operating voltage range, the first diode is reverse bias and the second diode is forward bias at the low cranking voltage, the secondary power supply powers the CAN transceivers at the low cranking voltage, thereby allowing the CAN transceiver to remain ON at the low cranking voltage.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: September 10, 2019
    Assignee: Valeo North America, Inc.
    Inventors: Sergio Bantiles, Beniamin Dragoi
  • Patent number: 10374687
    Abstract: A base station signal matching device configured to receive a base station signal from a base transceiver station (BTS), the base station signal matching device is embedded in a relay device, and the base station signal matching device includes a signal attenuation unit configured to receive the base station signal and attenuate the input power level of the base station signal; and a signal matching unit configured to receive the base station signal passing through the signal attenuation unit to match the base station signal suitable for signal processing of the relay device.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: August 6, 2019
    Assignee: SOLiD, INC.
    Inventor: Kyung Eun Han
  • Patent number: 10367539
    Abstract: An integrated circuit comprising a transceiver including a transformer. The transformer includes an input coupled to one or more primary windings. The transformer also includes a first differential output coupled to a first set of one or more secondary windings. The transformer further includes a second differential output coupled to a second, different set of one or more secondary windings. A method of making an integrated circuit comprising a transceiver. The method includes forming a plurality of components on and/or in a semiconductor substrate. At least one of the components comprises a transformer. The method includes forming the transformer by forming one or more primary windings coupled to an input, forming a first set of one or more secondary windings coupled to a first differential output, and forming a second, different set of one or more secondary windings coupled to a second differential output.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: July 30, 2019
    Assignee: NXP B.V.
    Inventors: Sebastien Robert, Guy Le Moal
  • 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