Patents Examined by Joseph Chang
  • Patent number: 11515839
    Abstract: A system includes a power receiver including an oscillator with a first coil and a second coil. The oscillator includes a first field effect transistor (FET) having first gate, first source, and first drain terminals, the first drain terminal coupled to the first coil, the first coil adapted to be inductively coupled to a third coil in a power transmitter. The oscillator also includes a first capacitor coupled to the first coil. The oscillator includes a second FET having second gate, second source, and second drain terminals, the second gate terminal coupled to the first capacitor, the second source terminal coupled to the first source terminal, and the second drain terminal coupled to the second coil, the second coil adapted to be inductively coupled to a fourth coil in the power transmitter. The oscillator includes a second capacitor coupled to the first gate terminal and coupled to the second coil.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: November 29, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Orlando Lazaro
  • Patent number: 11509311
    Abstract: A temperature-controlled oscillating device includes a supporting base, a mounting glue, an IC, at least one conducting medium, a temperature sensor, a quartz crystal package, and a heater. The mounting glue is formed on the supporting base. The IC is formed on the mounting glue. The conducting medium and the temperature sensor are formed on the IC. The quartz crystal package is formed on the conducting medium. The quartz crystal package includes a first quartz substrate, a second quartz substrate, and a third quartz substrate. The heater is formed on the quartz crystal package or the IC. There is no base arranged between the IC and the quartz crystal package.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: November 22, 2022
    Assignee: TXC CORPORATION
    Inventor: Wan-Lin Hsieh
  • Patent number: 11507026
    Abstract: A miniature atomic clock with pulse mode operation. The clock includes: a local oscillator; a dual-frequency laser source; a pulsing element to pulse the output signal from the source according to a Ramsey-type interrogation sequence having pulses with duration T1 separated by intervals with duration T2; an alkaline vapour microcell; a photodiode; a feedback control loop for controlling the microwave frequency of the local oscillator; and a feedback control loop for controlling the optical frequency of the source by using a pulse control block receiving the output signal from the photodiode and the interrogation sequence, and providing a correction signal to the source. During the period T1, the block extracts an error signal from the output signal received from the photodiode and generates the correction signal from the error signal. During the period T2, the block resets the error signal to zero and generates the correction signal by extrapolation.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: November 22, 2022
    Assignee: SYRLINKS
    Inventors: Jean-Marie Danet, Romain Broucquart
  • Patent number: 11509317
    Abstract: Systems and methods for integrating injection-locked oscillators into transceiver arrays are disclosed. In one aspect, there is provided an injection-locked oscillator (ILO) distribution system including a master clock generator configured to generate a master clock signal. The ILO distribution system also includes an ILO distribution circuit including an ILO and configured to receive the master clock signal. The ILO is configured to generate a reference clock signal based on the master clock signal. The ILO distribution circuit is further configured to generate an output signal indicative of an operating frequency of the ILO. The ILO distribution system further includes an injection-locked detector (ILD) configured to receive the master clock signal and the output signal. The ILD is further configured to determine whether the ILO is in a locked state or in an unlocked state based on the master clock signal and the output signal.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: November 22, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventors: Sanjeev Jain, Foad Arfaei Malekzadeh
  • Patent number: 11509265
    Abstract: An integrated circuit includes a first coupling terminal and a second coupling terminal disposed along a first side, an oscillation circuit which is electrically coupled to a resonator element via the first coupling terminal and the second coupling terminal, a temperature sensor, a temperature compensation circuit configured to compensate a temperature characteristic of the resonator element based on an output signal of the temperature sensor, and an output circuit to which a signal output from the oscillation circuit is input, and which is configured to output an oscillation signal, wherein d1<d0 and d2<d0, in which an end-to-end distance between the temperature sensor and the output circuit is d0, an end-to-end distance between the first coupling terminal and the output circuit is d1, and an end-to-end distance between the second coupling terminal and the output circuit is d2.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: November 22, 2022
    Inventor: Yasuo Maruyama
  • Patent number: 11509316
    Abstract: Systems and methods for integrating injection-locked oscillators into transceiver arrays are disclosed. In one aspect, there is provided an injection-locked oscillator (ILO) distribution system including a master clock generator configured to generate a master clock signal. The ILO distribution system also includes an ILO distribution circuit including an ILO and configured to receive the master clock signal. The ILO is configured to generate a reference clock signal based on the master clock signal. The ILO distribution circuit is further configured to generate an output signal indicative of an operating frequency of the ILO. The ILO distribution system further includes an injection-locked detector (ILD) configured to receive the master clock signal and the output signal. The ILD is further configured to determine whether the ILO is in a locked state or in an unlocked state based on the master clock signal and the output signal.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: November 22, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventors: Sanjeev Jain, Foad Arfaei Malekzadeh
  • Patent number: 11502551
    Abstract: A method of charging multiple receivers, the method includes: (i) receiving, via the communication radio, first data that allows the transmitter to determine a locations for a first receiver and a second receiver, (ii) determining waveform features used to transmit wireless power waves focused at the location of the first receiver, (iii) determining waveform features used to transmit wireless power waves focused at the location of the second receiver, (iv) causing a first subset of antennas to transmit wireless-power waves having the first waveform features to create focused energy at the location of the first receiver and (v) causing a second subset of antennas to transmit wireless-power waves having the second waveform features to create focused energy at the second location of the second receiver, where transmitting the wireless-power waves having the first waveform features occurs while transmitting the wireless-power waves having the second waveform features.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: November 15, 2022
    Assignee: Energous Corporation
    Inventor: Michael A. Leabman
  • Patent number: 11502124
    Abstract: Disclosed herein are IC structures, packages, and devices that include III-N transistors integrated on the same substrate or die as resonators of RF filters. An example IC structure includes a support structure (e.g., a substrate), a resonator, provided over a first portion of the support structure, and an III-N transistor, provided over a second portion of the support structure. The IC structure includes a piezoelectric material so that first and second electrodes of the resonator enclose a first portion of the piezoelectric material, while a second portion of the piezoelectric material is enclosed between the channel material of the III-N transistor and the support structure. In this manner, one or more resonators of an RF filter may be monolithically integrated with one or more III-N transistors. Such integration may reduce costs and improve performance by reducing RF losses incurred when power is routed off chip.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: November 15, 2022
    Assignee: Intel Coropration
    Inventors: Han Wui Then, Paul B. Fischer, Zdravko Boos, Marko Radosavljevic, Sansaptak Dasgupta
  • Patent number: 11495382
    Abstract: Described is a high Q-factor inductor. The inductor is formed as a unit cell coil, which is copied twice for a dual-coil inductor and copied four times for a quad-coil inductor. For each copy of the unit cell coil, the coil is rotated a subsequent substantially 90 degrees or substantially ?90 degrees. The rotation enables the terminals of the inductor to be routed equal-distant to a circuit that is placed in the line of symmetry between the two coils.
    Type: Grant
    Filed: January 19, 2019
    Date of Patent: November 8, 2022
    Assignee: Intel Corporation
    Inventor: Mark Elzinga
  • Patent number: 11496143
    Abstract: Smart electric meters configured to perform fast, time-synchronized electrical energy measurements at the consumer-level are disclosed herein. In some embodiments, a smart electric meter includes circuitry configured to measure an electrical value at a location of an end user in a power system. The smart electric meter can further include an atomic clock configured to output a timing signal, and a controller configured to receive (a) the measured electrical value from the circuitry and (b) the timing signal from the atomic clock. The controller can further (a) process the electrical value to generate meter data and (b) generate a time tag based on the timing signal. Then, the controller can associate the time tag with the meter data to generate time-tagged meter data.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: November 8, 2022
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Liang Min, Can Huang
  • Patent number: 11493950
    Abstract: A frequency counter circuit includes a first counter path to receive a digitally-controlled oscillator (DCO) clock signal and is configured to generate a first count corresponding to a first frequency of a first reduced clock signal corresponding to the DCO clock signal. A second counting path receives the DCO clock signal and generates a second count corresponding to a second frequency of a second reduced clock signal corresponding to the DCO clock signal. The first reduced clock signal is an integer multiple frequency of the second reduced clock signal. Detection circuitry detects a timing violation associated with the DCO clock signal based on a comparison between at least a portion of the first count and at least a portion of the second count.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: November 8, 2022
    Assignee: Movellus Circuits, Inc.
    Inventors: Jeffrey Fredenburg, Xiao Wu
  • Patent number: 11496094
    Abstract: A voltage-controlled oscillator comprises a varactor. A capacitance of the first varactor is dependent upon a control voltage. The voltage-controlled also comprises an inductor. The inductor is connected to a center-tap connection. The voltage-controlled oscillator also comprises a power source. The power source is configured to provide a bias voltage to the inductor through the center-tap connection. The voltage-controlled oscillator also comprises a coupling capacitor. The coupling capacitor is located between the inductor and the varactor. The voltage-controlled oscillator also comprises a coupling resistor. The coupling resistor is located between the coupling capacitor and the center-tap connection. The center-tap connection provides the bias voltage to the coupling capacitor through the coupling resistor.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: November 8, 2022
    Assignee: International Business Machines Corporation
    Inventors: James Strom, Herschel Akiba Ainspan, Andrew D. Davies, John Borkenhagen
  • Patent number: 11496139
    Abstract: A frequency measurement circuit includes a counter circuit to receive a first digitally-controlled oscillator (DCO) clock signal corresponding to a first DCO input codeword and a measurement signal. The counter circuit is responsive to the measurement signal to generate a count representing a measured frequency of the first DCO clock signal. A control circuit is configured to selectively adjust a parameter of the measurement signal for generating a second count of a second DCO clock signal corresponding to a second DCO codeword. The control circuit selectively adjusts the parameter based on a received control signal.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: November 8, 2022
    Assignee: Movellus Circuits, Inc.
    Inventors: Xiao Wu, Jeffrey Fredenburg
  • Patent number: 11489492
    Abstract: A semiconductor device 1 includes: a first oscillator 11_RC1 configured to operate at a detected voltage, the first oscillator having first temperature dependency; a second oscillator 11_RC4 configured to operate at the detected voltage, the second oscillator having second temperature dependency; a count unit configured to count an output of the first oscillator and an output of the second oscillator, the output of the first oscillator and the output of the second oscillator being supplied to the count unit; an arithmetic unit configured to calculate a count value CNT (T1) of the first oscillator and a count value CNT (T4) of the second oscillator, the count values of the first and second oscillators being counted by the count unit; and a determining unit configured to compare an output of the arithmetic unit with a threshold value to output a detected result signal corresponding to a result of the comparison.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: November 1, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Toshifumi Uemura
  • Patent number: 11486758
    Abstract: An ultrasonic sensor includes a casing and a piezoelectric vibrator element. The casing includes a first unit made of a metal and a second unit made of a resin. The first unit has a cylindrical or substantially cylindrical shape extending in a first direction. The second unit is connected to one end of the first unit in the first direction and includes a cylindrical section and a bottom plate. The cylindrical section extends in the first direction. The bottom plate is a disk-shaped portion which closes an end of the cylindrical section positioned farther away from the first unit in the first direction. The piezoelectric vibrator element is mounted on the bottom plate.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 1, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hirotoshi Hatakeyama
  • Patent number: 11489455
    Abstract: An apparatus leverages the existing power interconnect for DC power delivery by including a persistent DC power module into a power panel, thereby enabling a more efficient use of the energy. The persistent DC power module includes, in part, a control unit which is adaptive to the variations and availability of the external DC power source to ensure a constant and consistent delivery of DC voltage. The apparatus minimizes energy waste and e-waste, and is compatible with the existing legacy AC infrastructure.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: November 1, 2022
    Assignee: Entrantech Inc.
    Inventor: Kong-Chen Chen
  • Patent number: 11476711
    Abstract: A power transmitter for wireless power transfer at an operating frequency selected from a range of about 87 kilohertz (kHz) to about 360 kHz is disclosed. The power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer. The power transmitter further includes a shielding comprising a magnetic backing and a magnetic wall, the magnetic wall and magnetic backing defining a cavity, the magnetic wall including a top surface, the cavity extending, at least, from the magnetic backing to the coil, the coil positioned proximate to the top surface.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: October 18, 2022
    Assignee: NuCurrent, Inc.
    Inventor: Md Nazmul Alam
  • Patent number: 11476832
    Abstract: A bulk-acoustic resonator module includes: a module substrate; a bulk-acoustic resonator connected to the module substrate by a connection terminal and disposed spaced apart from the module substrate; and a sealing portion sealing the bulk-acoustic resonator. The bulk-acoustic resonator includes a resonating portion disposed opposite to an upper surface of the module substrate. A space is disposed between the resonating portion and the upper surface of the module substrate.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: October 18, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seung Wook Park, Tae Kyung Lee, Seong Hun Na, Jae Chang Lee, Jae Hyun Jung
  • Patent number: 11476404
    Abstract: An ultrasonic sensing device includes a housing, a piezoelectric assembly, a board and a plurality of fixing members. The housing includes a bottom wall, a top wall and a surrounding side wall connected between the top wall and the bottom wall. The piezoelectric assembly includes an encapsulating body and a piezoelectric sheet, wherein at least a portion of the piezoelectric sheet is enclosed by the encapsulating body and has a sensing surface exposed to the encapsulating body and facing the bottom wall. The board is disposed on the top wall of the housing and has a pressing surface facing the encapsulating body and the top wall. The plurality of fixing members is configured to fix the board to the top wall of the housing to press the board to the encapsulating body of the piezoelectric assembly, thereby pressing the sensing surface of the piezoelectric sheet to the bottom wall.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: October 18, 2022
    Assignee: Qian Jun Technology Ltd.
    Inventors: Chi-Shen Lee, Yu-Yen Fu, Po-Chun Yeh, Dong-Fu Chen, Chih-Wen Cheng, Chi-Lin Huang, Yu-Ping Yen
  • Patent number: 11469738
    Abstract: An oscillating device includes a first quartz crystal resonator, a driving circuit, a first buffer, an attenuator, a second quartz crystal resonator, and a second buffer. The first quartz crystal resonator and the second quartz crystal resonator respectively have a first resonant frequency and a second resonant frequency. The driving circuit drives the first quartz crystal resonator to generate a first oscillating signal having the first resonant frequency. The first buffer generates a first clock signal in response to the first oscillating signal. The attenuator reduces the wave swing of the first clock signal to generate an attenuated signal. The second quartz crystal resonator rectifies the attenuated signal to generate a second oscillating signal having the second resonant frequency. The second buffer generates a second clock signal in response to the second oscillating signal.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: October 11, 2022
    Assignee: TXC CORPORATION
    Inventors: Wan-Lin Hsieh, Yu-Liang Chen, Erh-Shuo Hsu, Chih-Hsun Chen, Sheng-Hsiang Kao