Patents Examined by Adam Houston
  • Patent number: 9954542
    Abstract: An apparatus includes an oscillator, a frequency divider, a phase circuit, a charge pump, and a filter. The frequency divider may generate an early feedback signal using a clock signal, and may assert a feedback signal a number of periods of the clock signal after asserting the early feedback signal. The phase circuit may generate a charge control signal using a reference clock signal and the feedback signal, and may generate a discharge control signal using the early feedback signal, the reference clock signal, and the feedback signal. The charge pump may charge or discharge a circuit node using the charge control signal and the discharge control signal to generate a frequency control signal. The filter circuit may attenuate at least one frequency component of the frequency control signal. The oscillator circuit may modify a frequency of the clock signal using the frequency control signal.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: April 24, 2018
    Assignee: Apple Inc.
    Inventors: Robert K. Kong, Feng Zhao, Wei Deng
  • Patent number: 9954401
    Abstract: A wireless power transmitting apparatus converts rotational energy of an axle to electrical energy, transfers the electrical energy to a transmitting coil of the wireless power transmitting apparatus through a power transfer connection pin that connects the inside of the wheel and the outside of the wheel of a vehicle, and wirelessly transmits the electrical energy to the sensor using resonance between a transmitting coil of the wireless power transmitting apparatus and a receiving coil of the sensor in order to use it as a driving power source of a sensor that detects a state of a tire.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: April 24, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hoe-Sung Yang, Kang Bok Lee, Sang Yeoun Lee
  • Patent number: 9948311
    Abstract: A decision-directed phase detector (DDPD) to compare an input signal including clock and data components with a reference signal set to a clock crossover value, and generate a first compared output signal designating a transition of the input signal through the clock crossover value. The DDPD may also receive the first compared output signal and generate a phase adjustment signal, and compare the input signal with the reference signal set to a positive offset clock crossover value of the clock crossover value offset by a positive offset value, and generate a positive offset compared output signal designating a transition of the input signal through the positive offset clock crossover value. The DDPD may further generate a valid transition signal to route the phase adjustment signal to a clock generation circuit when the positive offset compared output signal transitions over a clock period.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: April 17, 2018
    Assignee: Finisar Corporation
    Inventor: The'Linh Nguyen
  • Patent number: 9931944
    Abstract: A vehicle powertrain includes a bypass diode and a controller. The bypass diode is configured to clamp an inverter DC terminal voltage to a battery voltage. The controller is configured to, while the terminal voltage is within a predetermined range of the battery voltage, maintain off a lower IGBT of a DC-DC converter while in a propulsion mode, and modulate the lower IGBT to increase the terminal voltage to maintain the bypass diode reverse biased while in a regenerative mode.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: April 3, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Mohammed Khorshed Alam, Lihua Chen, Yan Zhou, Fan Xu
  • Patent number: 9935501
    Abstract: A wireless power transmitting and receiving device includes: a coil including a first section having a first number of turns and configured to receive power and a second section having a second number of turns different from the first number of turns and configured to transmit power and a converting and rectifying unit configured to: rectify the power received through the coil, convert externally-supplied power into alternating current power, and apply the alternating current power to the coil.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: April 3, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Sang Ho Cho
  • Patent number: 9929606
    Abstract: An apparatus for determining a position between a wireless power transmitter and a wireless power receiver is provided. The apparatus comprises a first ferrite block having respective portions configured to be disposed in physical contact with each of adjacent second and third ferrite blocks separated by a first gap and with each of adjacent fourth and fifth ferrite blocks separated by a second gap. The apparatus further comprises a plurality of detection loops wrapped around the first ferrite block such that none of the plurality of detection loops physically contact the second, third, fourth or fifth ferrite blocks when the respective portions of the first ferrite block are in physical contact with the second, third, fourth or fifth ferrite blocks. Each of the plurality of detection loops are wrapped around the first ferrite block in mutually perpendicular planes from one another.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: March 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Alberto Garcia Briz, Milenko Stamenic
  • Patent number: 9929722
    Abstract: Embodiments herein describe a transmission line used to carry an AC signal (e.g., a high-speed clock signal) between two different voltage domains in an IC. Instead of dividing the transmission line into multiple segments each with a buffer, in one embodiment the transmission line is arranged to form a capacitor. That is, the conductive material forming the transmission line is arranged in the IC to result in a desired capacitance. This capacitance can be used to replace a discrete capacitor that would otherwise be used with a buffer (e.g., level shifter) located at the end of the transmission line for converting the AC signal from a first voltage domain to a second voltage domain.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: March 27, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David M. Friend, Grant P. Kesselring, Christopher W. Steffen, James D. Strom
  • Patent number: 9929736
    Abstract: A novel PLL is provided. An oscillator circuit includes first to n-th inverters, and first and second circuits. A first terminal of each of the first and second circuits is electrically connected to an output terminal of the i-th inverter. A second terminal of each of the first and second circuits is electrically connected to an input terminal of the (i+1)-th inverter. The first circuit has functions of storing first data, switching between electrically disconnecting the first terminal and the second terminal from each other and setting a resistance between the first terminal and the second terminal to a value based on the first data. The second circuit has functions of storing second data, switching between electrically disconnecting the first terminal and the second terminal from each other and setting a resistance between the first terminal and the second terminal to a value based on the second data.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 27, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuki Okamoto, Yoshiyuki Kurokawa
  • Patent number: 9922959
    Abstract: A semiconductor device includes a package substrate having a plurality of external connection terminals disposed on a first surface thereof and a plurality of internal connection terminals disposed on a second surface thereof and electrically connected with corresponding one of the external connection terminals, a first semiconductor chip stacked over the second surface of the package substrate and having a first flag pad for providing first information and a first internal circuit for adjusting a parameter by a first correction value in response to the first information provided from the first flag pad, and a second semiconductor chip stacked over the first semiconductor chip and having a second flag pad for providing second information and a second internal circuit for adjusting the parameter by a second correction value in response to the second information provided from the second flag pad.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: March 20, 2018
    Assignee: SK Hynix Inc.
    Inventors: Seok-Bo Shim, Seok-Cheol Yoon
  • Patent number: 9917477
    Abstract: The embodiments described herein include a transmitter that transmits a power transmission signal (e.g., radio frequency (RF) signal waves) to create a three-dimensional pocket of energy. At least one receiver can be connected to or integrated into electronic devices and receive power from the pocket of energy. A wireless power network may include a plurality of wireless power transmitters each with an embedded wireless power transmitter manager, including a wireless power manager application. The wireless power network may include a plurality of client devices with wireless power receivers. Wireless power receivers may include a power receiver application configured to communicate with the wireless power manager application. The wireless power manager application may include a device database where information about the wireless power network may be stored.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: March 13, 2018
    Assignee: Energous Corporation
    Inventors: Douglas Bell, Michael Leabman
  • Patent number: 9908426
    Abstract: A vehicle includes a vehicle information unit that has information about a positional relationship between axles and a power receiving unit, so it is possible to move a power feeding unit to a position at which the power feeding unit faces the power receiving unit, according to the information about the positional relationship between the axles and the power receiving unit. In a system, a power feeding apparatus moves a power feeding unit to a position at which the power feeding unit faces the power receiving unit, according to a result of a comparison between information about a positional relationship between the axles of a vehicle and the power receiving unit in it and information that identifies the vehicle and to parking lot information.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: March 6, 2018
    Assignee: TDK CORPORATION
    Inventor: Noriyuki Fukushima
  • Patent number: 9912321
    Abstract: Provided is a data output circuit including: a control code generation unit suitable for generating a control code; and a driving unit suitable for driving an output pad with driving power determined by the control code in response to a data signal, wherein the control code generation unit generates an initial value of the control code in an initialization section, a calibration value of the control code in a calibration section, and a blocking value of the control code before the initialization section, wherein the calibration value is adjusted by a calibration operation in the calibration section, and wherein the driving unit is blocked by the blocking value.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: March 6, 2018
    Assignee: SK Hynix Inc.
    Inventor: Hyuk Lee
  • Patent number: 9899843
    Abstract: A system comprises a first energy system, a range extender, and a controller. The range extender has a second energy system, first and second converters, and a by-pass. The first converter is selectably coupled between the first energy system and an electric load, the second converter is selectably coupled between the second energy system and at least one of an output side of the first converter and an input side of the electric load, and the by-pass is selectably coupled between the first energy system and at least one of the output side of the first converter, an output side of the second converter and the input side of the electric load.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: February 20, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Fei Li
  • Patent number: 9899864
    Abstract: A bidirectional power converter circuit is controlled via a hysteresis loop such that the bidirectional power converter circuit can compensate in near real time for variations and even changes in transmit and receive coil locations without damaging components of the system. Because the bidirectional power converter is capable of both transmitting and receiving power (at different times), one circuit and board may be used as the main component in multiple wireless power converter designs.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: February 20, 2018
    Assignee: Enovate Medical, LLC
    Inventors: George Blakely, Gordon Waid
  • Patent number: 9899881
    Abstract: A wireless power transmitting device includes: a rectifier configured to rectify alternating current (AC) power; a capacitor configured to store the rectified AC power as direct current (DC) power; a voltage divider configured to divide a voltage of the DC power; and a wireless power transmitter configured to wirelessly transmit power using the voltage divided by the voltage divider.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 20, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In Wha Jeong, Young Woon Choi, Tae Won Heo
  • Patent number: 9899876
    Abstract: A maximum power output circuit for EHC and its design method are presented. The circuit is comprised of a magnetic core, that is, a primary coil and a secondary coil, with a load resistor and a capacitor parallel connected at the two ends of the secondary coil. The circuit enables the EHC to be always working at the maximum power output, thus realizing maximum power output of the energy harvesting power source.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: February 20, 2018
    Assignee: Shanghai Jiao Tong University
    Inventors: Yadong Liu, Chenlin Hu, Xiaolei Xie, Gehao Sheng, Xiuchen Jiang
  • Patent number: 9891641
    Abstract: Equipment having a noise elimination function according to embodiments includes a signal generator configured to generate a signal in which a noise component other than thermal noise is discretely included, a noise detecting unit configured to detect the noise component other than the thermal noise discretely included in output of the signal generator, and a signal correcting unit configured to eliminate the noise component detected by the noise detecting unit from the output of the signal generator, and generation of noise other than thermal noise is detected, and a signal from which noise is reliably eliminated is generated.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: February 13, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yuji Satoh
  • Patent number: 9887539
    Abstract: A power conversion device includes an AC power source configured to output an AC voltage, a DC power source configured to output a plurality of DC voltages having different levels, an inverter configured to receive the AC voltage and the plurality of DC voltages and output an output voltage by boosting the AC voltage in a booster mode in accordance with first and second control signals, the booster mode being a mode in which a level of the AC voltage is smaller than a predetermined value, a reactor configured to smooth the output voltage of the inverter, and a control circuit configured to generate the first and second control signals using a first and second carrier signals having different frequencies, respectively, in the booster mode, and selectively output the first or second control signal in accordance with the level of the AC voltage from the AC power source.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: February 6, 2018
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Qichen Wang, Satoru Fujita
  • Patent number: 9887592
    Abstract: An AC line filter is connected to an enclosure serving as a ground. A power transmission unit is configured to transmit electric power to a power reception device in a contactless manner. An inverter is provided between the AC line filter and the power transmission unit. A common mode filter is provided between the inverter and the power transmission unit. A Y capacitor of the common mode filter is not connected to the enclosure, but is connected to a power line between the AC line filter and the inverter.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 6, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toru Nakamura, Nobuhisa Yamaguchi
  • Patent number: 9887577
    Abstract: A bidirectional power converter circuit is controlled via a hysteresis loop such that the bidirectional power converter circuit can compensate in near real time for variations and even changes in transmit and receive coil locations without damaging components of the system. Because the bidirectional power converter is capable of both transmitting and receiving power (at different times), one circuit and board may be used as the main component in multiple wireless power converter designs. The bidirectional power converter circuit is used in a proximity wireless power transmitter and a proximity wireless power receiver, such that the transmitter and receiver may be misaligned in any direction while providing power from the transmitter to the receiver without damaging any circuitry of either the bidirectional power converter transmitter or the bidirectional power converter receiver.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: February 6, 2018
    Assignee: Enovate Medical, LLC
    Inventors: George Blakely, Gordon Waid