Patents Examined by Dinh T. Le
  • Patent number: 11050413
    Abstract: A latched comparator includes a first amplification circuit, a second amplification circuit and a latch circuit. The first amplification circuit changes voltage levels of first and second output nodes based on first and second input signals when an operation speed of a semiconductor apparatus is relatively slow. The second amplification circuit changes voltage levels of third and fourth output nodes based on the first and second input signals when the operation speed of the semiconductor apparatus is relatively fast. The latch circuit generates first and second latch signals based on the voltage levels of the first and second output nodes or based on the voltage levels of the third and fourth output nodes according to the operation speed of the semiconductor apparatus.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 29, 2021
    Assignee: SK hynix Inc.
    Inventors: Gyu Tae Park, Young Ouk Kim
  • Patent number: 11050346
    Abstract: A power generation device is characterized in that: charging and discharging circuits constituted by a first DC power supply and a second DC power supply each comprising a DC power supply are connected to a capacitor circuit that is constituted by one capacitor and the other capacitor each comprising a single capacitor or a plurality of capacitors; the configuration of the capacitor circuit can be switched to a first mode circuit or a second mode circuit by an operation switch, said first mode circuit storing charge in both capacitors from the charging circuit via a high-voltage relay, said second mode circuit storing charge in only the one capacitor; and the connection configuration of the capacitor circuit in which charge is stored is switched to a series connection by a switching switch driven by a switching driving power supply constituted by the DC power supply to reduce the combined capacitance of the capacitor circuit, thereby supplying the increased charge to the discharging circuit via the high-volta
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 29, 2021
    Assignee: BMC CO., LTD.
    Inventor: Shozo Nanba
  • Patent number: 11050400
    Abstract: An impedance matching device comprises a variable capacitor including multiple capacitance elements and connected in parallel having capacitors and each having one end connected in series to a high-frequency power source and semiconductor switches and connected to the respective capacitors, and a control unit. The control unit derives a reflection coefficient based on the obtained information concerning an impedance viewed from the high-frequency power source toward the load side, updates the states of the respective semiconductor switches and included in the multiple capacitance elements and with a first cycle in the case where the reflection coefficient is equal to or more than a predetermined value, and updates the states of the respective semiconductor switches and included in the plurality of capacitance elements and with a second cycle longer than the first cycle in the case where the reflection coefficient is less than the predetermined value.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: June 29, 2021
    Assignee: DAIHEN Corporation
    Inventor: Tatsuya Morii
  • Patent number: 11050305
    Abstract: Embodiments herein provide a device for calibrating a voltage driven by a PWM signal for a circuit board. The device includes a controller configured to generate the PWM signal according to a PWM duty cycle value, and a voltage regulator configured to generate an output voltage according to the PWM signal. The controller is further configured to calibrate a relationship between the PWM duty cycle value and the output voltage based on a plurality of configured PWM duty cycle values and a plurality of corresponding voltages measured from the voltage regulator, and drive the circuit board by configuring the PWM duty cycle value based on the calibrated relationship.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 29, 2021
    Assignee: Integrated Device Technology, Inc.
    Inventors: Nicholaus Smith, Chan Young Jeong
  • Patent number: 11043939
    Abstract: A system comprises quantum control interconnect circuitry configured to receive a plurality of fixed-frequency signals, a variable-frequency signal, a quantum control pulse, a quantum element readout pulse, and a quantum element return pulse. The circuitry is operable to upconvert the quantum control pulse using the fixed-frequency signals. The circuitry is operable to upconvert the readout pulse using the variable-frequency signal. The circuitry is operable to downconvert the return pulse using the variable-frequency signal.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: June 22, 2021
    Inventors: Ramon Szmuk, Lior Ella, Yonatan Cohen, Itamar Sivan, Nissim Ofek
  • Patent number: 11043832
    Abstract: An inductively coupled wireless charging system produces a high magnetic flux density to induce voltages in one or more coils of an electronic device via magnetic induction. These induced voltages are used to operate or charge batteries in the one or more electronic devices. The high magnetic flux density may cause electromagnetic interference to other adjacent devices, including other adjacent wireless charging systems. Methods, systems, and devices of the present disclosure are directed to reducing interference among adjacent wireless charging systems during concurrent operation of the adjacent wireless charging systems.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: June 22, 2021
    Assignee: Flex Ltd.
    Inventors: Manolo Mariano M. Melgarejo, Zheng-an Lin, Sunny Sun
  • Patent number: 11031665
    Abstract: A circuit comprising a differential transmission line and eight switches provides non-reciprocal signal flow. In some embodiments, the circuit can be driven by four local oscillator signals. The circuit can be used to form a gyrator. The circuit can be used to form a circulator. The circuit can be used to form three-port circulator than can provide direction signal flow between a transmitter and an antenna and from the antenna to a receiver. The three-port circulator can be used to implement a full duplex transceiver that uses a single antenna for transmitting and receiving.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: June 8, 2021
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Tolga Dinc, Harish Krishnaswamy
  • Patent number: 11031942
    Abstract: A frequency generator is disclosed. The frequency generator is for generating an oscillator clock according to a reference clock, and the frequency generator is used in a frequency hopping system that switches a carrier frequency among a plurality of channels, and the carrier frequency further carries a modulation frequency for data transmission. The frequency generator includes: a frequency hopping and modulation control unit, arranged for generating a current channel according to a channel hopping sequence and a frequency command word (FCW) based on the reference clock, a digital-controlled oscillator (DCO), arranged for to generating the oscillator clock according to an oscillator tuning word (OTW) Obtained according to the estimated DCO normalization value. An associated method is also disclosed.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: June 8, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Chia-Chun Liao, Min-Shueh Yuan, Chao-Chieh Li, Robert Bogdan Staszewski
  • Patent number: 11029216
    Abstract: During operation of an IC component within a first range of temperatures, a first bias voltage is applied to a first substrate region disposed adjacent a first plurality of transistors to effect a first threshold voltage for the first plurality of transistors. During operation of the IC component within a second range of temperatures that is distinct from and lower than the first range of temperatures, a second bias voltage is applied to the first substrate region to effect a second threshold voltage for the first plurality of transistors that is at least as low as the first threshold voltage.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: June 8, 2021
    Assignee: Rambus Inc.
    Inventors: Thomas Vogelsang, Frederick A. Ware
  • Patent number: 11020926
    Abstract: A voltage signal adaptor includes a housing, a die cable extending outward from the housing and terminating at a die cable end engageable with a manufacturing die comprising one or more die sensors, and a cable receptacle communicatively coupled to the die cable. The cable receptacle is engageable with a bolster cable of a machine press communicatively coupled to a press line programmable logic controller. The voltage signal adaptor further includes a step down power supply positioned between and communicatively coupled to the cable receptacle and the die cable and one or more signal conversion switches positioned between and communicatively coupled to the cable receptacle and the die cable.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: June 1, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Dale A. Lewis, Edward F. Flaga, Ralph H. Gibbs
  • Patent number: 11025201
    Abstract: Embodiments of power efficient radio mixers are provided. A generalized impedance matched low-voltage active mixer circuit technique, which utilizes a plurality of commutator cells and transformers, is disclosed. The low voltage active mixer function is coupled to an impedance matched amplifier allowing for insertion of image rejection filtering between the amplifier and the mixing function. The commutator cells can be driven in parallel by common local oscillator (LO) and intermediate frequency (IF) ports combined in parallel to yield highly linear mixers. A multi-channel receiver with a common impedance matched radio frequency (RF) amplifier driving a plurality of commutator cells with multiple LOs and IFs is also disclosed.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 1, 2021
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Kathiravan Krishnamurthi
  • Patent number: 11025249
    Abstract: A switch having a drain, a source, and a control. The switch comprising a depletion-mode transistor including a first, a second, and a control terminal and an enhancement-mode transistor including a first, a second, and a control terminal. The first terminal of the depletion-mode transistor is the drain of the switch and the control of the depletion-mode transistor is coupled to the source of the switch. The control of the enhancement-mode transistor is coupled to the control of the switch, the second terminal of the enhancement-mode transistor is the source of the switch. The switch comprises a clamp circuit to clamp a voltage of the first terminal of the enhancement-mode transistor to a threshold, the clamp circuit comprises a resistor and a pn-junction device coupled between the first and second terminals of the enhancement-mode transistor and between the second terminal and the control of the depletion-mode transistor.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: June 1, 2021
    Assignee: Power Integrations, Inc.
    Inventors: Hartley Horwitz, Sorin Georgescu, Kuo-Chang Robert Yang
  • Patent number: 11025228
    Abstract: Various embodiments provide methods, apparatuses, systems, or computer program products for providing a signal with dynamically shaped noise. In an example embodiment, the system comprises a dynamic filter, wherein a dynamic filter is a filter that is capable of switching between at least two responses; a signal generator configured to generate a signal; and a controller configured to control operation of the signal generator and selection of an operating response from the at least two responses of the dynamic filter. The controller causes the signal generator to generate a signal, the signal is provided to the dynamic filter, and the controller causes the dynamic filter to filter the signal in accordance with the operating response. The filtered signal is then provided to an electrical component of the system to cause at least a portion of the system to perform a function.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: June 1, 2021
    Assignee: Honeywell International Inc.
    Inventors: Leonardo Ascarrunz, Corey Barnes, Ryan Jacobs
  • Patent number: 11009849
    Abstract: A meter hub safety isolation service entrance disconnect switch includes an enclosure configured to mount outside a building and protect contents of the enclosure from ingress of solid foreign objects or the ingress of rain, sleet, or snow and that will be undamaged by the external formation of ice on the enclosure. The enclosure has a dead front cover and removable outside cover in which the outside cover is marked to inform a first responder that the enclosure contains a disconnect switch. The disconnect switch is operable upon removal of the outside cover while the dead front cover remains in place and includes a multi-pole switch having poles sufficient to convey power, neutral and ground as may be required by an electrical power source for a load center serving the premises, the switch opening poles for power and neutral upon actuation, while maintaining the ground of the premises wiring.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: May 18, 2021
    Inventor: Willie Sam Caudill
  • Patent number: 10992180
    Abstract: A device for inductively transferring electrical energy and/or data from a primary-sided carrier to at least one positionable secondary-sided recipient includes at least one primary-sided coil arrangement, which inductively interacts with at least one secondary-sided coil arrangement. Meander-shaped windings of a predeterminable winding number of the primary-sided and/or secondary-sided coil arrangement are arranged on at least one flexible carrier by embroidering a high frequency strand, and the meander-shaped windings have straight courses in the region of crossovers of the embroidered high frequency strands.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: April 27, 2021
    Assignee: Balluff GmbH
    Inventors: Joerg Heinrich, David Maier, Nejila Parspour
  • Patent number: 10985565
    Abstract: The present disclosure is directed to energy storage and supply management system. The system may include one or more of a control unit, which is in communication with the power grid, and an energy storage unit that stores power for use at a later time. The system may be used with traditional utility provided power as well as locally generated solar, wind, and any other types of power generation technology. In some embodiments, the energy storage unit and the control unit are housed in the same chassis. In other embodiments, the energy storage unit and the control unit are separate. In another embodiment, the energy storage unit is integrated into the chassis of an appliance itself.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: April 20, 2021
    Assignee: Orison, Inc.
    Inventor: Eric Douglass Clifton
  • Patent number: 10983545
    Abstract: A voltage control circuit for controlling an operating voltage of a target circuit, including: a speed detecting circuit, configured to detect an operating speed of the target circuit; and a control circuit, coupled to the speed detecting circuit, configured to generate a voltage control signal according to a difference between the operating speed and a predetermined speed, to a power supply circuit which generates the operating voltage, to control the operating voltage.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: April 20, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventor: Chung-Chang Lin
  • Patent number: 10979052
    Abstract: In some examples, a level shifter circuit comprises: a first transistor pair cascoded at a first input node; a second transistor pair cascoded at a second input node, wherein the first and transistor pairs couple at a first node, a second node, a third node, and a fourth node; a third transistor pair coupled to the first transistor pair at the first and the third nodes, wherein the third transistor pair is configured to generate a first bipolar clock signal; a fourth transistor pair coupled to the second transistor pair at the second and the fourth nodes, wherein the fourth transistor pair is configured to generate a second bipolar clock signal; and a clock generation circuit coupled to the first node, the second node, the third node, and the fourth node.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: April 13, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Biraja Prasad Dash, Ravinthiran Balasingam, Dimitar Trifonov
  • Patent number: 10972107
    Abstract: An apparatus includes a receiver buffer, a phase compensation circuit, a data sampler circuit, and an error sampler circuit. The receiver buffer may generate an equalized signal on a signal node using an input signal received via a channel. The phase compensation circuit may, in response to an initiation of a training mode, replace the equalized signal on the signal node with a reference signal. The data sampler circuit may sample, using a data clock signal, the reference signal to generate a plurality of data samples. The error sampler circuit may sample, using an error clock signal, the reference signal to generate a plurality of errors samples. The phase compensation circuit may also adjust a phase difference between the data clock signal and the error clock signal using at least some of the plurality of data samples and at least some of the plurality of error samples.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 6, 2021
    Assignee: Apple Inc.
    Inventors: Jaeduk Han, Wenbo Liu, Wing Liu, Ming-Shuan Chen, Sanjeev K. Maheshwari, Vishal Varma, Sunil Bhosekar, Lizhi Zhong, Gary A. Rogan
  • Patent number: 10972097
    Abstract: In accordance with an embodiment of the present invention, an optical switch includes a photoconductor body including a first edge and an opposite second edge, a first end and an opposite second end. The first edge is configured to receive an electrical input signal and the second edge is configured to deliver an electrical output signal. The photoconductor body is configured to have an electrically ON state that is activated by an optical signal and an electrically OFF state that is activated by an absence of the optical signal. A direction from the first end to the second end defines a longitudinal direction. The direction from the first edge to the second edge defines a first direction that is orthogonal to the longitudinal direction. A first dimension between the first edge and the second edge along the first direction decreases from the first end to the second end.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: April 6, 2021
    Assignee: STMICROELECTRONICS SA
    Inventors: Hanae Zegmout, Denis Pache, Stephane Le Tual, Jean-François Roux, Jean-Louis Coutaz