Patents Examined by Arnold M. Kinkead
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Patent number: 11309836Abstract: A differential crystal oscillator includes a source follower configured to receive an oscillatory signal and output a regenerated signal; a resonant network having a crystal and configured to terminate the oscillatory signal and determine an oscillation frequency of the oscillatory signal; a regenerative network configured to regenerate the regenerated signal; and a capacitive feedback network configured to provide a feedback from the regenerated signal to the oscillatory signal.Type: GrantFiled: August 2, 2021Date of Patent: April 19, 2022Assignee: REALTEK SEMICONDUCTOR CORP.Inventor: Chia-Liang (Leon) Lin
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Patent number: 11309834Abstract: A small-size high-power terahertz oscillator achieves a stable oscillation in a terahertz frequency band even at room temperature. The high-power terahertz oscillator has a structure in which a bow-tie antenna is disposed on a substrate, a cavity resonator, which includes two cavities, is disposed at a power supply portion of the bow-tie antenna, and a resonant tunneling diode (RTD) is disposed along a bottom of a wall of the cavity resonator, which defines the two cavities, and stably oscillates waves in the terahertz frequency band at room temperature by using the RTD, the bow-tie antenna and the cavity resonator.Type: GrantFiled: November 19, 2019Date of Patent: April 19, 2022Assignee: TOKYO INSTITUTE OF TECHNOLOGYInventors: Masahiro Asada, Safumi Suzuki, Hiroki Tanaka
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Patent number: 11309872Abstract: The present technology relates to an oscillation apparatus and an oscillation method allowing a variation in a frequency of a clock signal to fall within a predetermined range without using a reference clock signal. An oscillation apparatus includes an oscillation section oscillating a clock signal, an adjustment section changing a parameter of a constituent element constituting the oscillation section to thereby adjust a frequency of the clock signal, and a calibration control section controlling the adjustment section to perform frequency calibration of the oscillation section in a case in which a variation in a frequency of the clock signal oscillated by the oscillation section falls within a second range exceeding a first range permitted in an application of the clock signal.Type: GrantFiled: November 7, 2017Date of Patent: April 19, 2022Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventor: Katsuhisa Ito
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Patent number: 11309835Abstract: A crystal oscillator and a phase noise reduction method thereof are provided. The crystal oscillator may include a crystal oscillator core circuit, a first bias circuit and a phase noise reduction circuit, the first bias circuit is coupled to an output terminal of the crystal oscillator core circuit, and the phase noise reduction circuit is coupled to the output terminal of the crystal oscillator core circuit. In operations of the crystal oscillator, the crystal oscillator core circuit is configured to generate a sinusoidal wave. The first bias circuit is configured to provide a first voltage level to be a bias voltage of the sinusoidal wave. The phase noise reduction circuit is configured to reset the bias voltage of the sinusoidal wave in response to a voltage level of the sinusoidal wave exceeding a specific voltage range.Type: GrantFiled: May 4, 2021Date of Patent: April 19, 2022Assignee: MEDIATEK INC.Inventors: Sen-You Liu, Chien-Wei Chen, Keng-Meng Chang, Yao-Chi Wang
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Patent number: 11303288Abstract: An oscillator assembly includes a scribe seal, an oscillator circuit, and a calibration circuit. The oscillator circuit includes an output. The calibration circuit is coupled to the oscillator circuit. The calibration circuit includes a reference frequency terminal, a conductor coupled to the reference frequency terminal, and an oscillator input terminal. The conductor extends to an edge of the oscillator circuit assembly and penetrates the scribe seal. The oscillator input terminal is coupled to the output of the oscillator circuit.Type: GrantFiled: February 1, 2021Date of Patent: April 12, 2022Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Bichoy Bahr, Kaichien Tsai, Scott R. Summerfelt
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Patent number: 11302856Abstract: The present invention relates to an inductive dipole element for a superconducting microwave quantum circuit. The dipole element comprises a DC-SQUID formed by a pair of Josephson junctions shunted by an inductance, wherein the Josephson junctions have equal energy, and the Josephson junctions and the inductance are arranged such that each of the junctions forms a loop with the inductance. The two loops are asymmetrically threaded with external magnetic DC fluxes ?ext1 and ?ext2, respectively, such that ?ext1=? and ?ext2=0, wherein parametric pumping is enabled by modulating the total flux ??=?ext,1+?ext,2 threading the dipole element, thereby allowing even-wave mixing between modes that participate in the dipole element with no Kerr-like interactions.Type: GrantFiled: January 24, 2020Date of Patent: April 12, 2022Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE NATIONALE SUPERIEURE DES MINES DE PARIS, ASSOCIATION POUR LA RECHERCHE ET LE DEVELOPPEMENT DES METHODES ET PROCESSUS INDUSTRIELS-ARMINES, ECOLE NORMALE SUPERIEURE, SORBONNE UNIVERSITE, UNIVERSITE DE PARISInventors: Raphaël Lescanne, Zaki Leghtas
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Patent number: 11303246Abstract: The present disclosure provides a voltage controlled oscillation device and a wireless transceiver. The voltage controlled oscillation device includes a resonator, an oscillation core circuit, a switch circuit and a control device. The oscillation core circuit is configured to provide signals of different phases to the resonator. The resonator is configured to generate a plurality of different resonance frequencies. The control device is configured to control the connection/disconnection among ends of the resonator through controlling the switch circuit to be on/off, so that the resonator retains two resonance frequencies from the plurality of different resonance frequencies. The control device is further configured to change the retained two resonance frequencies by controlling the switch circuit to be turn on/off. The resonator is further configured to process two resonance frequencies under action of oscillation core circuit, and output a fundamental signal of one resonance frequency.Type: GrantFiled: June 22, 2021Date of Patent: April 12, 2022Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Quan Xue, Chao Li
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Patent number: 11296653Abstract: A shared pair of input/output cells configured to be able to be connected to a first external resonator or a second external resonator. A first oscillator and a second oscillator are coupled to the shared pair input/output cells by a switching circuit. The switching circuit is configured to be able to connect either the first oscillator or the second oscillator to the pair of input/output cells.Type: GrantFiled: January 29, 2021Date of Patent: April 5, 2022Assignee: STMicroelectronics (Rousset) SASInventors: Arnaud Gamet, Philippe Le Fevre
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Patent number: 11296652Abstract: Aspects of the present disclosure provide an oscillating circuit. An example oscillating circuitry generally includes a differential control pair comprising a first control node and a second control node. The oscillating circuit further includes a first voltage-controlled oscillator (VCO) comprising a first differential varactor circuit having a first positive control input coupled to the first control node and a first negative control input coupled to the second control node. The oscillating circuit also includes a second differential varactor circuit having a second positive control input coupled to the second control node and a second negative control input coupled to the first control node.Type: GrantFiled: October 2, 2020Date of Patent: April 5, 2022Assignee: QUALCOMM IncorporatedInventor: Philip Jones
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Patent number: 11296654Abstract: An electronic envelope detection circuit includes an input signal detecting circuit having at least one MOS transistor configured to receive a radiofrequency input signal and to deliver an internal signal on the basis of the input signal. The biasing point of the at least one transistor is controlled by the input signal and a control signal. A processing circuit that is coupled to the input signal detecting circuit is configured to deliver a low-frequency output signal on the basis of the internal signal and further deliver the control signal on the basis of the output signal. In operation, the value of the control signal decreases when the average power of the input signal increases, and vice versa.Type: GrantFiled: February 9, 2021Date of Patent: April 5, 2022Assignee: STMicroelectronics SAInventor: Lionel Vogt
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Patent number: 11290058Abstract: A voltage controlled oscillator (VCO) and buffer circuit includes a voltage controlled oscillator (VCO), a buffer circuit configured to receive a signal generated by the VCO, the buffer circuit comprising a first transistor having a parasitic gate-source capacitance (Cgs), and a second transistor coupled across the first transistor, wherein a gate of the first transistor is coupled to a drain and a source of the second transistor, and a gate of the second transistor is coupled to a source of the first transistor.Type: GrantFiled: October 22, 2020Date of Patent: March 29, 2022Assignee: QUALCOMM IncorporatedInventors: Yue Chao, Yinghan Wang, Marco Zanuso, Rajagopalan Rangarajan
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Patent number: 11283002Abstract: A primary single photon optoelectronic neuron includes a photonic synaptic input waveguide; an optoelectronic synapse; a synapto-dendritic electrical connection in communication with the optoelectronic synapse; an electronic dendrite in communication with the synapto-dendritic electrical connection; a dendrite-neuronal electrical interface in communication with the electronic dendrite; an integrator in communication with the dendrite-neuronal electrical interface; a superconducting wire in communication with the integrator; an axon hillock electronic-to-photonic transducer in communication with the superconducting wire; and an axonic waveguide in communication with the axon hillock electronic-to-photonic transducer and that receives the axonic photonic signal.Type: GrantFiled: August 16, 2019Date of Patent: March 22, 2022Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Jeffrey M. Shainline, Manuel A. Castellanos-Beltran, Adam N. McCaughan, Sae Woo Nam
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Patent number: 11283359Abstract: A DC-DC converter includes a synchronous rectification converter that converts electric power, a voltage detection circuit that detects a voltage proportional to an output voltage of the converter, a converter controller that compares a detection voltage detected by the voltage detection circuit with a reference voltage and controls an operation of the converter to provide a constant or substantially constant voltage of the detection voltage, and a command processor that sets, in a case where a target voltage command value input from an ECU is lower than a voltage value of the output voltage of the converter, a voltage value of the reference voltage to be equal or substantially equal to a voltage value of the detection voltage.Type: GrantFiled: December 10, 2019Date of Patent: March 22, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Yoshiyuki Uno, Yoshiaki Mizushima
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Patent number: 11274976Abstract: A temperature sensor supplying a measurement signal varying linearly to within 10% as a function of the temperature at least over a temperature range, including an oscillator supplied by a supply voltage and supplying a first oscillating signal, said oscillator including first MOS transistors, the voltage at each internal node of the oscillator having a dynamic range equal to the supply voltage, the measuring signal corresponding to the supply voltage.Type: GrantFiled: December 11, 2019Date of Patent: March 15, 2022Assignee: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Franck Badets, Maxime Cozzi
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Patent number: 11271575Abstract: In a resonance generation method, a Ramsey resonance is generated by repeating a first period and a second period. In the first period, an atomic cell, in which an alkali metal atom is accommodated and a hydrocarbon film is disposed on an inner wall, is irradiated with light having a first intensity while sweeping a center frequency within a sweep range, and a center frequency of light with which the atomic cell is to be irradiated in a next first period is determined based on a light intensity signal obtained by detecting light transmitted through the atomic cell. In the second period, an intensity of light incident on the atomic cell is reduced as compared with the first intensity.Type: GrantFiled: March 22, 2021Date of Patent: March 8, 2022Inventors: Kotaro Shijo, Yoshiyuki Maki
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Patent number: 11271524Abstract: A resonant tank includes a first capacitor formed on a semiconductor substrate, a first inductor formed on the semiconductor substrate, a second capacitor formed on the semiconductor substrate, and a second inductor formed on the semiconductor substrate. The first capacitor, the first inductor, the second capacitor, and the second inductor are connected in a ring configuration, with each capacitor connected between a pair of the inductors and with each inductor connected between a pair of the capacitors. An amplifier circuit is coupled to the resonant tank and configured to amplify a signal in the resonant tank.Type: GrantFiled: February 15, 2021Date of Patent: March 8, 2022Assignee: FUTUREWEI TECHNOLOGIES, INC.Inventors: Michael Bushman, James Caldwell
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Patent number: 11270838Abstract: Transformer circuitry comprising: a transformer having a primary coil and a secondary coil, the primary coil having first and second primary terminals and the secondary coil having first and second secondary terminals, and a secondary coil driver configured to drive a secondary voltage signal V2 across the secondary terminals which has a target relationship with a primary voltage signal V1 driven across the primary terminals by a primary coil driver so that an inductance value measured between the primary terminals is governed by the target relationship.Type: GrantFiled: November 20, 2020Date of Patent: March 8, 2022Assignee: SOCIONEXT INC.Inventors: David Hany Gaied Mikhael, Bernd Hans Germann, Ramkumar Ganesan
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Patent number: 11264950Abstract: A vibration element includes: a quartz crystal substrate having a first vibration part and a second vibration part; a pair of first excitation electrodes formed at two main surfaces of the quartz crystal substrate, at the first vibration part; and a pair of second excitation electrodes formed in such a way as to sandwich the second vibration part in a direction of thickness of the quartz crystal substrate, at the second vibration part. At least one second excitation electrode of the pair of second excitation electrodes is formed at an inclined surface inclined to at least one of the two main surfaces.Type: GrantFiled: May 20, 2021Date of Patent: March 1, 2022Inventors: Ryuta Nishizawa, Atsushi Matsuo, Keiichi Yamaguchi, Byonhaku Yu
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Patent number: 11264904Abstract: An energy storage module (ESM) assembly, ESM and method of balancing current flow on a direct current bus are provided. The ESM assembly includes a bidirectional DC-DC converter, an ESM having first and second energy cell strings connected in parallel relative to one another and configured to be connected to respective inputs of the bidirectional DC-DC converter. The ESM is configured to absorb current from the bidirectional DC-DC converter when the bidirectional DC-DC converter is operated in a buck mode. The ESM is configured to source current to the bidirectional DC-DC converter when the bidirectional DC-DC converter is operated in a boost mode.Type: GrantFiled: October 22, 2018Date of Patent: March 1, 2022Assignee: Hamilton Sundstrand CorporationInventors: Matthew L. Wilhide, Christopher J. Courtney
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Patent number: 11264979Abstract: A circuit includes a period calculator and a pulse width calculator. The period calculator is configured for receiving a first predetermined digital code and a second predetermined digital code, and for calculating a first calculated period value according to the first predetermined digital code, and calculating a second calculated period value according to the second predetermined digital code. The first predetermined digital code has a first predetermined period value, and the second predetermined digital code has a second predetermined period value. The pulse width calculator is configured for receiving a predetermined pulse width, and calculating a first pulse width code corresponding to the predetermined pulse width according to the first predetermined period value, the second predetermined period value, the first calculated period value, the second calculated period value and the predetermined pulse width.Type: GrantFiled: October 13, 2020Date of Patent: March 1, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Mao-Ruei Li, Ming Hsien Tsai, Ruey-Bin Sheen