Patents Examined by Levi Gannon
  • Patent number: 10848133
    Abstract: An oscillator includes a constant current generator configured to generate a constant current by maintaining a predetermined potential difference between both a first end and a second end of a resistor, and an oscillating element configured to output a clock signal corresponding to a charge and discharge cycle of a capacitor based on a bias current corresponding to the constant current.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: November 24, 2020
    Assignees: Samsung Electronics Co., Ltd., Research & Business Foundation Sungkyunkwan University
    Inventors: Jonghan Kim, Chisung Bae, Jaemin Choi, Yoonmyung Lee, Jung-Hoon Chun
  • Patent number: 10840882
    Abstract: A crystal unit includes an AT-cut crystal element that has a planar shape in a rectangular shape and a part as a thick portion. The crystal element includes a first end portion, a depressed portion, the thick portion, and a second end portion in this order from a side of one short side in viewing a cross section taken along a longitudinal direction near a center of the short side. The depressed portion is a depressed portion disposed from the thick portion toward the first end portion side, depressed with a predetermined angle ?a and subsequently bulged, and connected to the first end portion.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: November 17, 2020
    Assignee: NIHON DEMPA KOGYO CO., LTD.
    Inventors: Koji Toshikawa, Shinobu Yoshida, Hirokazu Iwata, Tetsuya Watanabe, Kazuhiro Hirota, Yoshiro Teshima
  • Patent number: 10838444
    Abstract: An adaptive constant current engine (ACCE) to control a current of a target load device at a constant level is disclosed. The ACCE includes a closed feedback loop which generates a sensed current that represents a load current conducted by the target load device and then compares the sensed current to a reference current. Based on this comparison, the circuit can output a voltage to control the current conducted by the target load device. The disclosed ACCE adapts the comparison to an operating voltage of the target load device in order to provide electrical conditions at a reference node receiving a reference current that are the same as electrical conditions at a sensing node receiving a sensing current. Accordingly, the ACCE can generate very accurate comparisons regardless of variations in the operating voltage of the target load device.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: November 17, 2020
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Rovshan Rustamov
  • Patent number: 10833537
    Abstract: A coil unit includes a coil and an accommodation case accommodating the coil. The coil is formed of a coil wire wound around a winding axis. A hollow portion is formed in a position in which the winding axis passes. The coil includes an outer peripheral portion located in an outer peripheral edge of the coil, and an inner peripheral portion located along an inner peripheral edge of the coil. A voltage on the inner peripheral portion is higher than a voltage on the outer peripheral portion.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 10, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Taiga Doi
  • Patent number: 10833660
    Abstract: A controlling circuit for ring oscillator is provided. First and second transistors of a first conductive type are coupled in series and between a node and a first power source. Third and fourth transistors of a second conductive type are coupled in parallel and between the node and a second power source. The node is coupled to a delay chain of the ring oscillator. The second and third transistors form a pseudo pass-gate inverter. An input of the pseudo pass-gate inverter is configured to receive an output signal of the delay chain. The first and fourth transistors are controlled by a realignment signal. When the realignment signal is in a realignment state, the first transistor is turned off and the fourth transistor is turned on, and when the realignment signal is in a normal state, the first transistor is turned on and the fourth transistor is turned off.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: November 10, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD
    Inventors: Tsung-Hsien Tsai, Ruey-Bin Sheen, Chih-Hsien Chang, Cheng-Hsiang Hsieh
  • Patent number: 10833632
    Abstract: In an integrated circuit device having a microelectromechanical-system (MEMS) resonator and a temperature transducer, a clock signal is generated by sensing resonant mechanical motion of the MEMS resonator and a temperature signal indicative of temperature of the MEMS resonator is generated via the temperature transducer. The clock signal and the temperature signal are output from the integrated circuit device concurrently.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: November 10, 2020
    Assignee: SiTime Corporation
    Inventors: Sassan Tabatabaei, Kamran Souri, Saleh Heidary Shalmany, Charles I. Grosjean
  • Patent number: 10826465
    Abstract: A device includes a capacitor having a first terminal coupled to a ground node, and a second terminal; a first transistor having a source coupled to the capacitor, a drain coupled to a first node, and a gate; a first current source coupled to the first node and configured to couple to a regulated supply node; a second transistor having a source coupled to the ground node, a drain coupled to a second node, and a gate coupled to the second node and to the gate of the first transistor; and a comparator circuit having an input coupled to the first node and an output configured to couple to a clock node.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: November 3, 2020
    Assignee: Texas Instruments Incorporated
    Inventor: Raveesh Magod Ramakrishna
  • Patent number: 10826510
    Abstract: An atomic oscillator includes: a light-emitting element; an atom cell that includes a first surface on which light beams from the light-emitting element are incident and a second surface from which the light beams incident on the first surface are emitted and accommodates alkali metal atoms in a gas state; a shield that accommodates the atom cell and has a magnetic shielding property, the shield having an opening; a heat transfer member that is in contact with a portion of the atom cell via an opening of the shield and has a thermal conductivity higher than a thermal conductivity of the atom cell; a temperature control element that is in contact with the heat transfer member and controls a temperature of the atom cell; and a light-receiving element that receives the light beams emitted from the second surface.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 3, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Kimio Nagasaka, Yukihiro Hashi, Takahiro Kan, Tomohiro Tamura, Teppei Higuchi
  • Patent number: 10819165
    Abstract: A system includes an AC power module structured to provide alternating current (“AC”) electrical power; a power distribution wiring harness structured to receive the AC electrical power from the AC power module; a plurality of inductive coupling modules coupled to the power distribution wiring harness, and configured to transmit the AC electrical power to at least one load; and, a signal injection module structured to inject a communication signal on the power distribution wiring harness using signal modulation during a transient moment of operation corresponding to a low electrical noise operating range of electromagnetic interference generated by components of a vehicle.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: October 27, 2020
    Assignee: Cummins Inc.
    Inventors: Thomas J. Milvert, Miguel A. Gonzalez, Jr., Joseph L. Gahimer, Adrian Delforge, Anirban De
  • Patent number: 10814809
    Abstract: A vehicle includes: a plurality of electric loads that consume the dark current during parking of the vehicle and modulate the dark current; a battery sensor that senses the dark current output from a battery, demodulates the dark current modulated by the plurality of electric loads, identifies the dark current consumed by each of the plurality of electric loads based on the demodulated dark current, and identifies an electric load, which consumes excess dark current, based on the dark current consumed by each of the plurality of electric loads; and an integrated control device to alert a driver of consumption of the excess dark current of the identified electric load.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: October 27, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: EunSang Lee
  • Patent number: 10819279
    Abstract: A low power crystal oscillator is provided. The crystal oscillator includes a gain control stage, a filter stage, and an output stage. The gain control stage includes an input coupled at a first oscillator terminal configured and arranged for connection to a first terminal of a crystal. The filter stage includes an input coupled to an output of the gain control stage. The output stage includes a first transistor having a first current electrode coupled at a second oscillator terminal configured and arranged for connection to a second terminal of the crystal and a control electrode coupled to receive a voltage signal at the first oscillator terminal and a first bias voltage.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: October 27, 2020
    Assignee: NXP USA, INC.
    Inventors: Juan Camilo Monsalve, Ricardo Pureza Coimbra, James Robert Feddeler, Stefano Pietri
  • Patent number: 10819346
    Abstract: Provided is a temperature-compensated voltage generating circuit that generates a temperature-compensated voltage which is supplied to an oscillator circuit. The temperature-compensated voltage generating circuit includes a temperature detecting circuit that detects a temperature; a high frequency attenuating part that attenuates at least a part of a frequency component which is higher than a direct-current component of an output of the temperature detecting circuit; an adder that adds the output of the temperature detecting circuit and an output of the high frequency attenuating part; and a compensated voltage generating part that generates the temperature-compensated voltage based on an output of the adder.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: October 27, 2020
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Takayuki Sato, Hideaki Hirose
  • Patent number: 10819347
    Abstract: Provided is a relaxation oscillator that is very small in temperature deviation of an oscillation period. The relaxation oscillator includes an oscillation circuit, a variable frequency divider, and a counter. The oscillation circuit is configured to switch between a first clock signal having a negative value as a first-order temperature coefficient of an oscillation period, and a second clock signal having a positive value as a first-order temperature coefficient of an oscillation period, based on a signal from the counter, and to output the switched-to clock signal as a third clock signal. The variable frequency divider is configured to divide the frequency of the third clock signal that is output from the oscillation circuit, and to output the frequency-divided third clock signal as a clock signal. The counter is reset by the clock signal.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: October 27, 2020
    Assignee: ABLIC INC.
    Inventor: Toshiyuki Tanaka
  • Patent number: 10809230
    Abstract: A resonator includes a prong of which the width between edges is close to ?/2. The pressure variation at one edge is then in phase opposition with that at the other edge. Acoustic coupling with an incident wave having the wavelength is thus improved. The ratio between the width between edges and the height of the prong is chosen so that only the fundamental mode with bending oscillation of the prong is present. It to prongs of a tuning fork embedded in a solid shared base optimized to contain the energy in the tuning fork while avoiding energy losses in the support. Finally, the tuning fork is advantageously combined with a unit for containing acoustic energy including a rigid reflecting screen.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: October 20, 2020
    Assignee: OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES
    Inventors: Guillaume Aoust, Béatrice Bourgeteau, Raphaël Levy, Olivier Le Traon, Denis Janiaud
  • Patent number: 10812060
    Abstract: An integrated communications subsystem (ICSS) includes a pulse-width modulator which drives a power stage, such as a motor. The pulse-width modulator is configured shut off the power stage when the pulse-width modulator receives a trip signal from a logic circuit of the ICSS. The logic circuit can easily be reprogrammed to send a trip signal only when certain error conditions are detected. Moreover, the ICSS contains one or more filters which can adjust the sensitivity of the logic circuit to error signals, enabling the ICSS to distinguish between true errors which require shutdown and glitches, which can be ignored during operation of the ICSS.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: October 20, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Thomas Anton Leyrer, Martin Staebler, William Cronin Wallace
  • Patent number: 10797646
    Abstract: A variable-gain power amplifying technique includes generating, with a network of one or more reactive components included in an oscillator, a first oscillating signal, and outputting, via one or more taps included in the network of the reactive components, a second oscillating signal. The second oscillating signal has a magnitude that is proportional to and less than the first oscillating signal. The power amplifying technique further includes selecting one of the first and second oscillating signals to use for generating a power-amplified output signal, and amplifying the selected one of the first and second oscillating signals to generate the power-amplified output signal.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: October 6, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Sudipto Chakraborty
  • Patent number: 10790832
    Abstract: An apparatus is provided which comprises: a frequency locked loop (FLL) comprising an oscillator including a plurality of delay stages, wherein an output of each delay stage is counted to determine a frequency of the FLL; and one or more circuitries coupled to the FLL to adjust a power supply to the FLL according to the determined frequency of the FLL.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 29, 2020
    Assignee: Intel Corporation
    Inventors: Praveen Mosalikanti, Qi Wang, Mark L. Neidengard, Vaughn J. Grossnickle, Nasser A. Kurd
  • Patent number: 10790831
    Abstract: A temperature compensated crystal oscillator implements temperature compensation by generating and applying a temperature compensation signal via a function having a plateau region and a higher slope region, where a horizontal position of the higher slope region, a slope value in the higher slope region, and a function value change magnitude over the higher slope region are adjustable.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: September 29, 2020
    Assignee: RAKON LIMITED
    Inventor: Kevin Alan Neil Aylward
  • Patent number: 10777886
    Abstract: A wireless power transmission device includes a power transmitter to transmit a wireless power signal through a plurality of first antennas, a propagation path estimation unit to estimate first propagation path information characterizing a propagation path between the plurality of first antennas and a predetermined antenna, a propagation path extraction unit to extract second propagation path information characterizing a propagation path passing through a moving body, based on at least one of a difference on a time axis of a plurality of pieces of the first propagation path information each acquired at different times, and filtering on a frequency axis, a weight calculator to calculate a weight vector that determines a directivity of a combined power transmission beam formed by the plurality of first antennas, and a controller to control an amplitude and a phase of the wireless power signal inputted to each of the plurality of first antennas.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: September 15, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kentaro Murata, Kohei Onizuka, Toshiya Mitomo
  • Patent number: 10778113
    Abstract: An intelligent power module includes at least one power semiconductor module including a semiconductor device, and a sealing body sealing an outer periphery of the semiconductor device, a driving circuit part mounted on the sealing body and configured to drive the power semiconductor module, and a cooling part on which the sealing body is mounted, and configured to cool the power semiconductor module.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: September 15, 2020
    Assignee: ROHM CO., LTD.
    Inventor: Hideki Sawada