Patents Examined by Dean O Takaoka
  • Positions of release ports for sacrificial layer etching
    Patent number: 11159142
    Abstract: A film bulk acoustic wave resonator includes a piezoelectric film disposed over a cavity. The cavity is shaped as partial ellipse including first, second, and third vertices. The film bulk acoustic wave resonator further includes three release ports in positions that minimize etch time to remove all sacrificial material from within the cavity.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 26, 2021
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventor: Nobufumi Matsuo
  • Fast impedance tuner calibration
    Patent number: 11158921
    Abstract: A fast calibration method for slide-screw impedance tuners employs a reduced calibration algorithm, which creates appropriately distributed calibration points over the Smith chart compatible with already existing interpolation and tuning algorithms for high accuracy and high-speed impedance tuning. The method uses one vertical scaling of the tuning probe followed by a limited number of vertical positioning operations at pre-set horizontal intervals and applies this data to generate accurate interpolated high-density tuner calibration data points at a fraction of previously required calibration times.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: October 26, 2021
    Inventor: Christos Tsironis
  • Bulk acoustic wave (BAW) resonator
    Patent number: 11152913
    Abstract: An acoustic resonator includes a first piezoelectric layer, a second piezoelectric layer, a coupler layer, a first electrode, and a second electrode. The first piezoelectric layer has a first polarity. The second piezoelectric layer has a second polarity opposite the first polarity. The coupler layer is between the first piezoelectric layer and the second piezoelectric layer. The first electrode is on the first piezoelectric layer opposite the coupler layer. The second electrode is on the second piezoelectric layer opposite the coupler layer.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: October 19, 2021
    Assignee: Qorvo US, Inc.
    Inventors: Jyothi Swaroop Sadhu, Gernot Fattinger, Robert Aigner, Michael Schaefer
  • Power passing directional coupler having a split ferrite element
    Patent number: 11152679
    Abstract: A directional coupler includes an input connector, an output connector, and at least one tap connector. The directional coupler also includes a primary line connecting the input connector to the output connector and configured to carry an RF signal and an AC signal, and a secondary line connecting the primary line to the at least one tap connector and configured to carry a split off portion of the RF signal. The directional coupler also includes a tapped line circuit which is inhibited from carrying the AC signal. The mainline transformer includes a ferrite element surrounding the primary line and which is split in at least one location to include a gap of non-magnetic material that inhibits saturation of the ferrite element.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 19, 2021
    Assignee: ANTRONIX INC.
    Inventors: Jinquan Wu, Neil Tang
  • Bulk acoustic wave filter
    Patent number: 11146243
    Abstract: A bulk acoustic wave (BAW) filter for passing through electric signals in a preset frequency range is provided. The BAW filter includes: a diamond substrate; a passivation layer formed on the diamond substrate; a first metal layer formed on the passivation layer; a piezoelectric layer formed on the first metal layer; a second metal layer formed on a piezoelectric layer and a metal pad formed on the first metal layer. The metal pad, first metal layer, piezoelectric layer and second metal layer form an electrical path that allows an electrical signal within a preset frequency range to pass therethrough.
    Type: Grant
    Filed: February 2, 2020
    Date of Patent: October 12, 2021
    Assignee: RFHIC Corporation
    Inventor: Won Sang Lee
  • Electrical device and method for manufacturing the same
    Patent number: 11146234
    Abstract: An electrical device includes an electronic component, a membrane and a cover. The electronic component has a first surface and a second surface opposite to the first surface. The electronic component has a cavity extending from the first surface of the electronic component into the electronic component. The membrane is disposed within the cavity of the electronic component. The cover is disposed on the first surface of the electronic component.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: October 12, 2021
    Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventor: Mark Gerber
  • Microwave combiner and distributer for quantum signals using frequency-division multiplexing
    Patent number: 11139903
    Abstract: A technique relates to a superconducting microwave combiner. A first filter through a last filter connects to a first input through a last input, respectively. The first filter through the last filter each has a first passband through a last passband, respectively, such that the first passband through the last passband are each different. A common output is connected to the first input through the last input via the first filter through the last filter.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: October 5, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Baleegh Abdo
  • Radio-frequency filter, multiplexer, radio-frequency front-end circuit, and communication device
    Patent number: 11139798
    Abstract: A filter includes: a series-arm circuit; a first parallel-arm circuit connected to a ground and a node; and a second parallel-arm circuit connected to the ground and a node. The first parallel-arm circuit includes a parallel-arm resonator, and a first switch circuit. The second parallel-arm circuit includes a parallel-arm resonator, and a second switch circuit. The first switch circuit includes a first switch. The second switch circuit includes a second switch. A voltage across the first switch is lower than a voltage across the second switch. A stack count of the first switch is lower than a stack count of the second switch.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: October 5, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Nosaka
  • Branch-line directional coupler and power amplifier device
    Patent number: 11133566
    Abstract: A branch line directional coupler has a first line, a second line, a first open-ended coupled circuit, and a second open-ended coupled circuit. The first and second lines have a first characteristic impedance and a quarter wavelength length. The first open-ended coupled line has one end connected to the first line and the other end connected to the second line. The second open-ended coupled line has one end connected to the first line and the other end connected to the second line. The first open-ended coupled line has two coupled lines having a coupling length of a quarter wavelength, an open stub, and a connecting line, and has a total length of one-half wavelength. The second open-ended coupled line includes two coupled lines having a coupling length of ¼-wavelength, open stubs, and a connecting line, and has a total length of ½-wavelength.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: September 28, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventor: Tooru Kanehira
  • Multilayer piezoelectric substrate
    Patent number: 11133789
    Abstract: An acoustic wave device includes a layered substrate having a piezoelectric material layer bonded to a second material layer including a material having a higher thermal conductivity than the piezoelectric material layer, interdigital transducer electrodes disposed on a surface of the piezoelectric material layer, contact pads disposed on the piezoelectric material layer and in electrical contact with the interdigital transducer electrodes, external bond pads disposed on the second material layer, and conductive vias passing through the layered substrate and providing electrical contact between the contact pads and external bond pads.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: September 28, 2021
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Keiichi Maki, Rei Goto, Hironori Fukuhara
  • Optical detection and analysis of a counterweight assembly on a crane
    Patent number: 11130658
    Abstract: An optical detection system for a crane having a counterweight assembly includes an image capture assembly having one or more image capture devices configured to capture an image of the counterweight assembly and an optical control system. The optical control system is configured to detect one or more objects in the captured image, the one or more objects selected from the counterweight assembly, a weight unit of the counterweight assembly, a stack of weight units of the counterweight assembly, and a marker on the counterweight assembly. The optical control system is also configured to analyze the one or more detected objects and determine a status of counterweight assembly based on the analysis of the one or more detected objects.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: September 28, 2021
    Assignee: Manitowoc Crane Companies, LLC
    Inventors: John R. Rudy, Matthew Thoresen
  • Contactless interface for mm-wave near field communication
    Patent number: 11128345
    Abstract: A system is provided in which a first waveguide has a first resonator coupled to an end of the first waveguide. A second waveguide has a second resonator coupled to the second waveguide. The first resonator is spaced apart from the second resonator by a gap distance. Transmission of a signal propagated by the first waveguide across the gap to the second waveguide is enhanced by a confined near field mode magnetic field produced by the first resonator in response to the propagating wave that is coupled to the second resonator.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: September 21, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Swaminathan Sankaran
  • Systems and methods for balancing unbalanced power cables
    Patent number: 11128278
    Abstract: Systems and methods may include balancing an unbalanced power cable using a transformer that has one or more phases by selecting a voltage on a tap handle; disposing a first bushing on one or more phases at a different voltage than the selected voltage; and balancing the unbalanced power cable based on the disposition of the first bushing on the one or more phases at the different voltage.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: September 21, 2021
    Assignee: Extract Management Co., LLC
    Inventors: Mitchell Lee Crane, Stark Kremeier, Robert McCoy
  • Directional coupler
    Patent number: 11121444
    Abstract: A directional coupler includes a main line for transmitting a high frequency signal, a sub line electromagnetically coupled to the main line, a termination circuit for terminating one end portion of the sub line, and a variable filter that has an input terminal and an output terminal and the input terminal is connected to another end portion of the sub line. The variable filter is a filter unit circuit having one frequency band as a pass band or a stop band, and in the filter unit circuit, a variable passive element for shifting a frequency in the pass band or the stop band is disposed.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: September 14, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kenta Seki, Ryangsu Kim, Katsuya Shimizu
  • Resonator for radio frequency signals
    Patent number: 11121445
    Abstract: A resonator for radio frequency, RF, signals, said resonator comprising a cavity having a longitudinal axis, a first wall, at least one side wall, and a lid arranged opposite the first wall, wherein said resonator further comprises a guiding device which is arranged at said at least one side wall and is configured to guide an axial movement of said lid along said longitudinal axis.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: September 14, 2021
    Assignee: Nokia Solutions and Networks OY
    Inventors: Efstratios Doumanis, Murat Emre Ermutlu, Juha Olli Jokilahti
  • Filter and multiplexer
    Patent number: 11121700
    Abstract: A transmission filter includes a transmission filter circuit and an additional circuit. The transmission filter circuit is provided between a first terminal and a second terminal. Between the first terminal and the second terminal, the additional circuit is connected in parallel with at least a portion of the transmission filter circuit. The additional circuit includes an IDT electrode group including a plurality of IDT electrodes located next to each other in an acoustic wave propagation direction and two reflectors that sandwich the IDT electrode group and having different numbers of pairs of electrode fingers.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 14, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Shinichi Nakamura
  • Multiplexer
    Patent number: 11121694
    Abstract: A multiplexer includes a switch that individually connects or disconnects between a common terminal and first, second, third, and fourth selection terminals, first and second matching circuits, and first, second, and third filters having different pass bands. The first selection terminal is connected to one end of the first matching circuit, the second selection terminal is connected to one end of the second matching circuit, the other end of the first matching circuit and the other end of the second matching circuit are connected to each other and to one end of the first filter, the third selection terminal is connected to one end of the second filter, and the fourth selection terminal is connected to one end of the third filter.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: September 14, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kouichi Ueno
  • Planar cavity MEMS and related structures, methods of manufacture and design structures
    Patent number: 11111139
    Abstract: A method of forming a Micro-Electro-Mechanical System (MEMS) includes forming a lower electrode on a first insulator layer within a cavity of the MEMS. The method further includes forming an upper electrode over another insulator material on top of the lower electrode which is at least partially in contact with the lower electrode. The forming of the lower electrode and the upper electrode includes adjusting a metal volume of the lower electrode and the upper electrode to modify beam bending.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: September 7, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christopher V. Jahnes, Anthony K. Stamper
  • Bulk-acoustic wave resonator
    Patent number: 11114997
    Abstract: A bulk acoustic wave resonator includes a substrate, a seed layer disposed on the substrate, a first electrode disposed on the seed layer and including an aluminum alloy layer containing scandium (Sc), a piezoelectric layer disposed on the first electrode and including a layer having a cation (Al) polarity, and a second electrode disposed on the piezoelectric layer.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: September 7, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ran Hee Shin, Tae Kyung Lee, Sung Jun Lee, Hwa Sun Lee, Je Hong Kyoung, Sung Sun Kim, Jin Suk Son
  • Planar cavity MEMS and related structures, methods of manufacture and design structures
    Patent number: 11104572
    Abstract: A method of forming a Micro-Electro-Mechanical System (MEMS) includes forming a lower electrode on a first insulator layer within a cavity of the MEMS. The method further includes forming an upper electrode over another insulator material on top of the lower electrode which is at least partially in contact with the lower electrode. The forming of the lower electrode and the upper electrode includes adjusting a metal volume of the lower electrode and the upper electrode to modify beam bending.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: August 31, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christopher V. Jahnes, Anthony K. Stamper