Patents by Examiner Tung X. Nguyen
  • Patent number: 9823296
    Abstract: A built-in self test system comprises an integrated circuit device comprising a plurality of functional units coupled to built-in self test circuitry; a low power control unit operable to switch the integrated circuit device into a low power mode and to generate a BIST wake-up signal during or before entering the low power mode; and a built-in self test control unit coupled to the built-in self test circuitry and the low power control unit and arranged to initiate a built-in self test when receiving the BIST wake-up signal.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: November 21, 2017
    Assignee: NXP USA, Inc.
    Inventors: Manfred Thanner, Carl Culshaw, Juergen Frank, Michael Staudenmaier
  • Patent number: 9824947
    Abstract: The disclosure describes a novel method and apparatus for testing different types of TSVs in a single die or different types of TSV connections in a stack of die. The testing is facilitated by test circuitry associated with each type of TSV. The test circuitry includes a scan cell adapted for testing TSVs.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 21, 2017
    Assignee: Texas Instruments Incorporated
    Inventor: Lee D. Whetsel
  • Patent number: 9815137
    Abstract: As a correction amount is acquired a deviation between a first rotational angle of a servo motor when a reference movable electrode is brought into contact with a reference opposite electrode and a second rotational angle of the motor when the reference movable electrodes pushes in the reference opposite electrode with a predetermined pressing force; and a third rotational angle of the servo motor when a movable electrode to be measured pushes in an opposite electrode to be measured with the same pressing force is corrected based on the correction amount.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: November 14, 2017
    Assignee: FANUC CORPORATION
    Inventor: Toshimichi Aoki
  • Patent number: 9817051
    Abstract: An alternating current loss measuring apparatus for superconductors includes a superconductor specimen, a magnetic field applying coil, a radiation shield, a vacuum vessel, first cooling means, and second cooling means. The first cooling means or the second cooling means is provided with a temperature regulating mechanism. The magnetic field applying means and the radiation shield are set to be a first cooling part, whereas the superconductor specimen is set to be a second cooling part, and the first cooling part and the second cooling part are cooled by first and second cooling means, respectively. A high thermal resistance member is disposed between the superconductor specimen and the second cooling means, and temperature measuring means are disposed at at least two positions on the high thermal resistance member. The alternating current loss of a superconductor under an external magnetic field can be measured at each of different temperatures.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: November 14, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuhiko Kawakami, Takeshi Kawamura, Manabu Aoki, Yukinobu Imamura
  • Patent number: 9816814
    Abstract: In one example a magnetometer unit comprises logic, to receive first magnetic response data from a first magnetic sensor and second magnetic response data from a second magnetic sensor displaced from the first magnetic sensor, generate a composite response surface representation from the first magnetic response data and the second magnetic response data, and store the composite response surface representation in a non-transitory memory. Other examples may be described.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: November 14, 2017
    Assignee: Intel Corporation
    Inventors: Kevin J. Daniel, Gary A. Brist
  • Patent number: 9817064
    Abstract: An I/O control circuit includes a plurality of IO cells including an input section for stimulating a plurality of (n) pins of a device under test (DUT) and an output section for processing data output by the pins. The input section of each cell includes a latched driver each including a driver input, a first driver output, a next state driver output, and a current source. The next state driver output and current source are for coupling to drive the pins, and the latched drivers are serially connected with the first driver output of an earlier IO cell connected to the driver input of a next IO cell. The output section of each cell includes an analog to digital converter (ADC) for coupling to the n pins, and a memory element coupled to an output of the ADC.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: November 14, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Ramana Tadepalli
  • Patent number: 9817030
    Abstract: A testing device includes a base body, a holder, an electrically conductive plate, plural testing probes and plural insulation structures. The testing device of the present invention uses the electrically conductive plate to replace the plastic plate of the conventional testing device. Consequently, the electrostatic discharge effect is avoided. Moreover, the insulation structure is arranged between the testing probe and the electrically conductive plate to separate the testing probe from the electrically conductive plate so as to avoid the electric leakage problem. Consequently, the testing device of the present invention is capable of avoiding the electrostatic discharge effect without causing damage of the under-test object and reducing the measurement accuracy.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: November 14, 2017
    Assignee: Primax Electronics Ltd.
    Inventor: Pei-Ming Chang
  • Patent number: 9817034
    Abstract: A measurement device measuring a current passing through a detection resistor coupled between a first node and a second node is provided. An interference elimination unit is coupled to the first and second nodes and selectively outputs the voltage of at least one of the first and second nodes according to a control signal. A first voltage-dividing unit is coupled to the interference elimination unit and processes the voltage of the first or second node to generate a first processed signal. A second voltage-dividing unit is coupled to the interference elimination unit and processes the voltage of the first or second node to generate a second processed signal. A processing unit is coupled to the first and second voltage-dividing units to receive the first and second processed signals and calculates the first and second processed signals to obtain the current passing through the detection resistor.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: November 14, 2017
    Assignee: VIA ALLIANCE SEMICONDUCTOR CO., LTD.
    Inventors: Peng Li, Zhongding Liu
  • Patent number: 9817038
    Abstract: An optical sensor that senses current by directing polarized light across an airgap that is orthogonal to a direction of current running through a conductor. The sensor includes a prism having a high Verdet constant for high sensitivity to magnetic fields, which cause an angle of polarization of the polarized light to be rotated as an indication of the magnitude of current. A polarizing beamsplitter having a low Verdet constant is mounted to the prism so that incoming light that is traveling in a direction orthogonal to the magnetic field being sensed across the airgap is insensitive to unwanted magnetic fields produced by nearby conductors. The distance the light travels in this orthogonal direction is minimized, reducing the overall volume of the sensor, making a compact sensor highly sensitive to magnetic fields of interest, largely insensitive to unwanted magnetic fields, and having a very high dynamic range for sensing current.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 14, 2017
    Assignee: GRIDVIEW OPTICAL SOLUTIONS, LLC.
    Inventors: Philip B. Davis, Ye Li, Theodore C. Konetski
  • Patent number: 9819355
    Abstract: A capacitive sensing system operates according to a method which uses an ADC. The analog signal to be digitized is modulated with a triangular or saw-tooth modulating signal, so that a modulated analog signal is obtained, which is sampled with the ADC. The triangular or saw-tooth signal is chosen to have a peak-to-peak amplitude corresponding at least approximately to an integer multiple L, with L?1, of the quantization step size of the ADC. The saw-tooth or triangular signal has a number M, of periods per each sequence of N samples. M and N are chosen such that M>1 and M?N and such that R=r*N/(k*gcd(N, M)*L), where gcd(M, N) is the greatest common divisor of N and M and where k=2 if the modulating signal is a saw-tooth signal and k=4 if the modulating signal is a triangular signal.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: November 14, 2017
    Assignee: IEE International Electronics & Engineering S.A.
    Inventor: Laurent Lamesch
  • Patent number: 9810727
    Abstract: A sensor system for a motor vehicle is provided. The sensor system comprises a flat shielding element which is electrically conductive and to which an electric potential can be applied, and at least one capacitive sensor element which includes an electrically conducting structure which is arranged on one side of the shielding element. As electrically conducting structure the sensor element includes at least one sensor conductor which forms a sewing thread and is sewn onto the one side of the shielding element.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: November 7, 2017
    Assignee: TAKATA AG
    Inventors: Marcus Kandler, Albrecht Kretzschmar
  • Patent number: 9810732
    Abstract: The present document describes an assembly for connecting a test unit to a wiring harness or equipment to be tested, and a method for testing using the assembly. The assembly may comprise a test box unit, a generic mate-in interface, an intermediate mate-in interface and at least one specific mate-in interface. The intermediate mate-in interface comprises an input/output connector connected between the generic-to-intermediate connector and the intermediate-to-specific connector, for enabling at least one of inputting a signal into the intermediate mate-in interface and outputting a signal from the intermediate mate-in interface. The assembly is used for performing tests on the equipment using at least one of a device adapted for generating a signal and a device adapted for measuring at least one attribute of a signal or circuit which is/are connected to the input/output connector of the intermediate mate-in interface.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: November 7, 2017
    Assignee: Ziota Technology Inc.
    Inventor: Alain Lussier
  • Patent number: 9810550
    Abstract: In a position detection device of a type that omits a secondary coil, various inconveniences arising from the use of a voltage-dividing resistance (fixed resistor) are eliminated. At least two pairs of coils are provided. A magnetism-responsive member are placed so as to effect relative displacement in relation to the coils, the relative position of the member in relation to the coils varies with a position of a detection object, and impedance of each coil is varied with the relative position. The impedance changes of two coils constituting each one of coil pairs present characteristics of mutually opposite phase characteristics. For each coil pair, the two coils constituting the pair are connected in series with each other, and from a connection point thereof, a voltage-divided output voltage according to the impedance of the two coils is taken out as a detection output signal for the pair.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: November 7, 2017
    Assignee: AMITEQ CO., LTD.
    Inventors: Atsutoshi Goto, Daisuke Goto, Kazuya Sakamoto, Shuichi Tanaka
  • Patent number: 9810519
    Abstract: A variety of magnetic field sensor arrangements provide so-called “tooth detectors” using a simple low-cost magnet.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: November 7, 2017
    Assignee: Allegro MicroSystems, LLC
    Inventors: William P. Taylor, P. Karl Scheller, Paul David
  • Patent number: 9810720
    Abstract: An improved system and method for monitoring power lines without connecting to ground is disclosed herein. An improved sensory assembly can comprise a first end, a second end, a voltage sensor, a current sensor, an analog to digital converter, and a sensory transceiver. The first end can be electrically connectable to a first phase of a power line. The second end can be electrically connectable to a second phase of the power line. The voltage sensor can be capable of measuring a voltage between the first phase and the second phase. The current sensor can be magnetically coupled to the power line. The analog to digital converter can be capable of receiving a first signal from the voltage sensor, and can be capable of receiving a second signal from the current sensor.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: November 7, 2017
    Assignee: CLEAVELAND/PRICE INC.
    Inventor: Hershel Roberson
  • Patent number: 9810717
    Abstract: Device for measuring at least one electrical variable of a current intended to flow in an electric apparatus, the electric apparatus comprising at least one connection terminal, each connection terminal being designed to be electrically connected to the end of a corresponding electric conductor, the device comprising at least one current sensor, each current sensor being configured for measuring the current flowing in a corresponding electric conductor. The device further comprises at least one electrically conductive spacer, each spacer being configured for being interposed between a respective connection terminal and the end of a corresponding electric conductor, and wherein each current sensor is further positioned around a respective spacer, to measure the current flowing through said spacer, between the electric conductor and the corresponding connection terminal.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: November 7, 2017
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventors: Simon Tian, Didier Vigouroux, Yannick Neyret
  • Patent number: 9803998
    Abstract: An absolute position sensor having a detector with a plurality of Wiegand wire sensors that each have a pair of Hall sensors bracketing or straddling the Wiegand wire used by a processor in interpolating relative ratios of signals from the bracketing Hall sensors in not only providing increased fine position determination between magnets but also providing coarse position count increment or decrement verification. Such an absolute position sensor provides increased fine position determination accuracy while also enhancing increment and/or decrement error prevention and/or correction during position sensor operation.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: October 31, 2017
    Assignee: Joral LLC
    Inventor: Carl D. Schrubbe
  • Patent number: 9804203
    Abstract: The current sensor arrangement according to the compensation principle has a primary conductor, designed to generate a primary magnetic field dependent on a current to be measured flowing through it, a first secondary winding, designed to generate a first secondary magnetic field dependent on a first compensation current flowing through said winding, a second secondary winding designed to generate a second secondary magnetic field dependent on a second compensation current flowing through said winding, a magnetic field sensor designed to generate a measurement signal that represents a magnetic field detected by it; a magnetic core of soft magnetic material designed and arranged to magnetically interconnect a primary conductor, a first seconding winding, a second secondary winding, and a magnetic field sensor; a first evaluation circuit, downstream from the magnetic field sensor and upstream from the first secondary winding, and a second evaluation circuit, upstream from the second secondary winding.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: October 31, 2017
    Assignee: VACUUMSCHMELZE GMBH & CO. KG
    Inventor: Friedrich Lenhard
  • Patent number: 9807873
    Abstract: A printed circuit board according to an embodiment of the present invention is formed of an insulating material and configured to mount components and wiring thereon. The printed circuit board includes a liquid pool for storing a liquid; a pair of deterioration detection traces one of which is connected to a power supply at one end and disposed in the liquid pool at the other end, and the other of which is connected to a ground at one end through a resistor and disposed in the liquid pool at the other end; a voltage detection circuit for detecting a voltage between the one ends of the one and the other deterioration detection traces; and a deterioration determination circuit for determining, based on the detected voltage, whether or not insulation deteriorates between the other ends of the one and the other deterioration detection traces.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: October 31, 2017
    Assignee: FANUC CORPORATION
    Inventors: Yasuyuki Matsumoto, Kiichi Inaba
  • Patent number: 9804217
    Abstract: An EMC test bench, includes an item of equipment under test to be loaded on board an aircraft, the item of equipment being subjected to EMC tests and delivering ARINC electrical interfaces as inputs and as output; an electrical interfaces device representative of an item of anti-lightning equipment and including an ARINC signals acquisition and/or generation card connected to the ARINC inputs and outputs of the item of equipment under test; a command and control rack for analyzing control signals originating from the electrical interfaces device including the ARINC signals acquisition and/or generation card, and a signals conversion system for protecting the command and control rack connected between the command and control rack and the electrical interfaces device.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 31, 2017
    Assignee: SNECMA
    Inventors: Rémy Salvatge, Cyril Lair