Patents Examined by Thang X Le
  • Patent number: 11408931
    Abstract: The present disclosure provides an integrated-circuit-level (IC-level) test method and system. The IC-level test method includes the operations of: providing, by a stage wagon, a plurality of burn-in boards to an IC loading chamber; determining, by the IC loading chamber, at least one disposing configuration for a plurality of ICs according to at least one docking mechanism of the stage wagon; disposing, by the IC loading chamber, the plurality of ICs on each of the plurality of burn-in boards according to the at least one disposing configuration; providing, by the stage wagon, the plurality of burn-in boards with the plurality of ICs to a test chamber; and performing, by the test chamber, a test function on the plurality of ICs to determine a status of each of the plurality of ICs.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: August 9, 2022
    Assignee: NANYA TECHNOLOGY CORPORATION
    Inventor: Cheng-Sung Lai
  • Patent number: 11408928
    Abstract: A state output circuit that outputs a state signal indicating a state of a power supply apparatus, including: a state output terminal that outputs the state signal; a reference potential line to which a reference potential is applied; a first pull-up terminal to which a first pull-up potential is applied, wherein the first pull-up potential is a potential higher than the reference potential; a connection switch unit that is provided between the state output terminal and the reference potential line, and switches whether to connect the state output terminal to the reference potential line or not, in accordance with the state of the power supply apparatus; a first protection resistor provided between the connection switch unit and the state output terminal; and a pull-up unit that pulls up a first connection line between the first protection resistor and the connection switch unit up to the first pull-up potential.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: August 9, 2022
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Sho Nakagawa
  • Patent number: 11402420
    Abstract: A capacitor testing device includes a carrier with a plurality of clamping holes which are configured to carry capacitors to be tested; a conveying means being configured to convey the carrier; an image collection assembly, including an upper image collection assembly disposed above the conveying means and a lower image collection assembly disposed below the conveying means, the upper image collection assembly and the lower image collection assembly being configured to perform defect testing on outer surfaces of the capacitors to be tested; and a performance testing means, including a performance testing circuit board and a lifting assembly being configured to drive the performance testing circuit board to ascend or descend, and the performance testing means being configured to test electrical performances of the capacitors to be tested.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: August 2, 2022
    Assignee: SUZHOU APPARATUS SCIENCE ACADEMY CO., LTD.
    Inventors: Delin Hu, Chun Hu, Min Zhang, Fengya Chen, Yitian Guan, Zhigang Xu, Xiaolei Xu, Hui Zhu
  • Patent number: 11402411
    Abstract: A switching arrangement for monitoring AC signals includes: one or a plurality of comparators, to which an AC signal to be monitored or a signal obtained therefrom is feedable in each case at a first comparison input, for comparison with a defined amplitude threshold value present at a second comparison input, so as to generate a first output signal at an output; a zero crossing detector, to which a reference signal or a signal obtained therefrom is feedable at a monitoring input, so as to generate a second output signal at an output of the zero crossing detector; a first timing element downstream of the zero crossing detector configured to generate a first clock signal as a function of the second output signal; and a second timing element downstream of the zero crossing detector configured to generate a second clock signal as a function of the second output signal.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: August 2, 2022
    Assignee: Eaton Intelligent Power Limited
    Inventor: Horea Cuica
  • Patent number: 11400194
    Abstract: A medicament preparation system includes a disposable cartridge with a flow path. Various sensors may be placed on the cartridge to measure qualities of the fluid flowing through the flow path. The sensors are placed in precise locations using various approaches that make manufacturing of the cartridge efficient and repeatable. A drain line that is susceptible to fouling may be preattached and various approaches are used to remove or reduce the fouling. An elastomeric contact can also be present in the medical preparation system and used in a conductivity measurement subsystem.
    Type: Grant
    Filed: June 24, 2018
    Date of Patent: August 2, 2022
    Assignee: NxStage Medical, Inc.
    Inventors: James M. Brugger, Jeffrey H. Burbank, Goetz Friederichs, Scott W. Newell, William J. Schnell, Orlando Soto
  • Patent number: 11402410
    Abstract: An optical voltage sensor assembly includes an input fiber-optic collimator positioned and configured to collimate input light beam from a light source. A crystal material is positioned to receive the input light beam from the light source and configured to exhibit the Pockels effect when an electric field is applied through the crystal material. An output fiber-optic collimator is positioned to receive an output light beam from the crystal material and configured to focus the output light beam from the crystal onto a detector. Methods of using the optical voltage sensor assembly are also disclosed.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: August 2, 2022
    Assignee: MICATU INC.
    Inventors: Atul Pradhan, Michael Oshetski, Scott Stelick, Joshua Sperrick, William Laratta
  • Patent number: 11397201
    Abstract: A circuit assembly for monitoring a sinusoidal alternating voltage signal having a comparing element receiving at an input the signal with period T and generating a first output signal at an output based upon the signal exceeding a threshold; a zero crossing detector receives at its input the signal and generates a output signal at its output; a timing element connected to zero crossing detector generates a clock signal dependent on the second output signal; and a flip-flop. The comparing element output is connected to a state-controlled input of the flip-flop and the timing element output is connected to an edge-controlled input of the flip-flop. The flip-flop generates a state signal at its output. The timing element specifies a state change of the clock signal at an instant that differs from the instant at T/4 after a zero crossing of the signal.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 26, 2022
    Assignee: Eaton Intelligent Power Limited
    Inventor: Horea Culca
  • Patent number: 11397208
    Abstract: An infrared zero value diagnosis method and system for a porcelain insulator string are provided.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: July 26, 2022
    Assignees: State Grid Hubei Electric Power Research Institute, Hunan University
    Inventors: Xueming Zhou, Danhui Hu, Xiaopo Mao, Jungang Yin, Jianjin Fu, Zhiqiang Feng, Yaodong Zhang, Zeqi Huang, Tianru Shi
  • Patent number: 11397205
    Abstract: A measurement system for testing a device under test includes a signal generation and/or analysis equipment, several antennas, several reflectors and a test location for the device under test. The antennas are connected with the signal generation and/or analysis equipment in a signal-transmitting manner Each of the antennas is configured to transmit and/or receive an electromagnetic signal so that a beam path is provided between the respective antenna and the test location. The electromagnetic signal is reflected by the respective reflector so that the electromagnetic signal corresponds to a planar wave. Each antenna and the corresponding reflector together are configured to provide a corresponding quiet zone at the test location. At least one of the quiet zones provided is larger than the at least one other quiet zone and/or at least one of the antennas is configured to operate at a different frequency compared to the at least one other antenna.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: July 26, 2022
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Corbett Rowell, Daniel Markert, Benoit Derat
  • Patent number: 11391792
    Abstract: A magnetic field measuring device that can measure a weaker magnetic field is provided. A magnetic field measuring device is provided, the magnetic field measuring device including: a sensor unit that has at least one magnetoresistive element; a reference voltage generating unit that outputs a reference voltage; a magnetic field generating unit that generates a magnetic field to be applied to the sensor unit; a feedback current generating unit that supplies, according to a difference between an output voltage of the sensor unit and the reference voltage, the magnetic field generating unit with a feedback current that generates a feedback magnetic field to diminish an input magnetic field to the sensor unit; a magnetic field measuring unit that outputs a measurement value corresponding to the feedback current; and an adjusting unit that uses the output voltage of the sensor unit to adjust the reference voltage.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: July 19, 2022
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Kazuhiro Ishida, Masanori Masuda, Takenobu Nakamura
  • Patent number: 11395066
    Abstract: Systems, methods, and apparatus for corona detection using audio data are provided. In one example embodiment, the method includes obtaining, by one or more computing devices, audio data indicative of audio associated with an electrical system for at least one time interval. The method includes partitioning, by the one or more computing devices, the audio data for the time interval into a plurality of time windows. The method includes determining, by the one or more computing devices, a signal indicative of a presence of corona based at least in part on audio data collected within an identified time window of the plurality of time windows relative to audio data collected for a remainder of the time interval.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: July 19, 2022
    Assignee: Hubbell Incorporated
    Inventors: Gary Michael Miller, Bernard Chenault Crutcher, Gaylord Zahlman
  • Patent number: 11385272
    Abstract: A test and measurement device measures an insertion loss of a material under test. The test and measurement device includes a reference device in contact with a first surface of a material under test, the reference device including a reflective component and an absorbing component. A testing device is in contact with a second surface of the material under test, opposite the first surface. The testing device includes a first transmitter to output a first signal at a predetermined frequency to the reflective component of the reference device through the material under test, a first receiver to receive a first reflected signal from the reflective component, a second transmitter output a second signal at the predetermined frequency to the absorbing component of the reference device through the material under test, and a second receiver to receive a second reflected signal from the material under test.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: July 12, 2022
    Assignee: Tektronix, Inc.
    Inventor: Alexander Krauska
  • Patent number: 11385279
    Abstract: A chip test device and a chip test method are provided. The chip test device may include a chip socket and an interface card comprising a signal synthesizer, a plurality of first interfaces and a second interface. The signal synthesizer may be configured to synthesize a plurality of low-frequency first signals output from a plurality of testers into a high-frequency second signal and transmit the second signal to the chip socket. The plurality of first interfaces may be arranged in a plurality of inputs of the signal synthesizer for connecting the testers, and the second interface may be arranged in an output of the signal synthesizer for connecting the chip socket. By synthesizing the low-frequency first signals into the high-frequency second signal, a high-frequency test may be conducted using a plurality of low-frequency testers.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: July 12, 2022
    Assignee: Changxin Memory Technologies, Inc.
    Inventor: Chia-Chi Hsu
  • Patent number: 11378594
    Abstract: A capacitive voltage sensor that has particular application to be molded into an insulating body of a switch. The voltage sensor includes an annular electrode assembly having a grounded electrode including an inner ring and an outer ring defining a space therebetween, and a sensing electrode positioned in the space and being substantially surrounded by the inner and outer rings. The body is formed around the electrode assembly and a cylindrical center conductor extends through the electrode assembly. Capacitive coupling is provided between the sensing electrode and the center conductor by one or more openings in the inner ring, such as a single round hole, a slot or a plurality of symmetrically disposed round holes or slots. The inner and outer rings can be attached at one end so that the grounded electrode is a single piece or the rings can be separate rings electrically coupled together by conductive screws.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: July 5, 2022
    Assignee: S&C Electric Company
    Inventor: Goran Djogo
  • Patent number: 11366154
    Abstract: An integrated circuit (IC) includes functional logic therein that can be enabled by application of a predefined thermal cycle. The IC includes an enabling fuse operatively coupled to the functional logic, the functional logic being disabled unless enabled by activation of the enabling fuse. A set of thermal sensors are arranged in a physically distributed manner through at least a portion of the IC. A test control macro operatively couples to the set of thermal sensors and the enabling fuse for activating the enabling fuse to enable the functional logic in response to application of a thermal cycle that causes the set of thermal sensors to sequentially experience a thermal condition matching a thermal sequence enabling test. A related method and system for applying the predefined thermal cycle are also provided.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: June 21, 2022
    Assignee: GLOBALFOUNDRIES U.S. INC.
    Inventors: Sebastian T. Ventrone, Richard S. Graf, Ezra D. B. Hall, Jack R. Smith
  • Patent number: 11366076
    Abstract: In described examples, one or more devices include: apparatus including a lens element and a transducer to vibrate the lens element at an operating frequency when operating in an activated state; and controller circuitry. The controller circuitry is arranged to measure an impedance of the apparatus, to determine an estimated temperature of the apparatus in response to the measured impedance, to compare the estimated temperature against a temperature threshold for delineating an operating temperature range of the apparatus, and to toggle an activation state of the transducer in response to comparing the estimated temperature against the temperature threshold.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: June 21, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: David Patrick Magee, Stephen John Fedigan
  • Patent number: 11353509
    Abstract: A digital circuit robustness verification method is provided that includes the following steps. An internal storage circuit and an external storage circuit corresponding to a circuit under test are set to store a plurality of random values and a configuration of the circuit under test for performing a predetermined function is set by a processing circuit. A driving signal corresponding to the predetermined function is transmitted to the circuit under test by a previous stage circuit, such that the circuit under test executes the predetermined function to further generate an output signal. The determination as to whether the output signal is correct or not is made by a next stage circuit, and the circuit under test is determined to pass a robustness verification when the output signal is correct.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: June 7, 2022
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Wen-Yi Mao, Jin-Fu Huang, Dai-De Wei, Yong-Bin Cao
  • Patent number: 11353489
    Abstract: Disclosed is herein an antenna performance tester including: a horizontal rotor 200 rotatable about a shaft part 110 to which a DUT holder 300 is detachably coupled; and a vertical rotor 500 to which a reference antenna holder 400 is detachably fixed and which is spaced apart from a side surface of the DUT holder 300, is installed perpendicular to the horizontal rotor 200, and is rotatable about a virtual central point lying at the center. The antenna performance tester is advantageous in that: a reference antenna measures an RF while performing transmission and reception with respect to a DUT in all directions at a constant distance from the DUT; extension and replacement are possible depending on a frequency to be measured; and an influence of reflected waves is minimized at RF measurement, antenna performance can be simply tested in an anechoic chamber or even in a semi-anechoic chamber.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: June 7, 2022
    Assignee: AMOTECH CO., LTD.
    Inventors: Jongho Park, Hyungil Baek, Chanwoo Lee
  • Patent number: 11353491
    Abstract: An overhead power line insulator is provided including a device for detecting and measuring a leakage current and for transmitting data, the device being arranged in such a manner as to perform: measuring a leakage current of an insulator during a first measurement period and during a second measurement period in a measurement circuit; comparing two values of the current that are obtained during respective ones of the two measurement periods; and stopping the measurement circuit for a certain sleep period of time if the second value of the current is less than or equal to the first value of the current, and then starting the measurement circuit again after the certain sleep period of time.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: June 7, 2022
    Assignee: SEDIVER
    Inventors: Emmanuel Brocard, Fabrice Mesples, Philippe Carteron
  • Patent number: 11356046
    Abstract: An electronic determination device is configured for determining at least one characteristic parameter of an electric machine with P phases, P?3, connected to an electric starter and including at least P-1 switching arms, each switching arm being connected to a respective phase of the electric machine. The determination device comprises a control module configured to control respective switching arm(s) to close and the other switching arm(s) to open, so as to generate a current injection on two phases of the electric machine; an acquisition module configured to acquire measurements of respective current(s) and voltage(s) for said two phases, further to the generation of the current injection; and a calculation module configured to calculate at least one characteristic parameter of the electric machine according to the respective current(s) and voltage(s) measurements.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: June 7, 2022
    Assignee: Schneider Toshiba Inverter Europe SAS
    Inventors: Thomas Devos, Fran├žois Malrait