By Voltage Or Current Measuring Patents (Class 324/522)
  • Patent number: 10770165
    Abstract: Techniques are described for programming memory cells without performing a verify test, where the programming is followed by a short circuit test. In one aspect, an initial programming is performed on memory cells of a first word line of a block using a program pulse with an initial magnitude, Vpgm. By reading the memory cells, Vpgm can be optimized for programming subsequent word lines. The subsequent word lines may be programmed using a no-verify program operation followed by a word line short circuit test, for one or more word lines involved in the program operation. The short circuit test can be performed concurrently on a single word line, multiple word lines and/or one or more sub-blocks of a block, based on an amount of write data which can be storage by a controller.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 8, 2020
    Assignee: SanDisk Technologies LLC
    Inventors: Xue Qing Cai, Jiahui Yuan, Deepanshu Dutta
  • Patent number: 10746779
    Abstract: An apparatus for determining a fault location distance or distance protection in a multi-phase power transmission medium, configured to; determine a set of line fault parameters based on a measurement of voltage and current at a point of said power transmission medium and a fault type, the line fault parameters determined at a plurality of sample times determine a derivative with respect to time of a line fault parameters representative of an inductive part of measured faulty phase current; determine a set of phasors using a Fourier transformation of the derivative and of the remaining line fault parameters at the plurality of sample times and use said set of phasors to determine a fault location distance or distance projection distance along the power transmission medium; wherein, the determination of the fault location distance or the distance protection distance is based on the line equation; U . P = U . F + [ R 1 ? I . PR + X 1 ? 0 ? I . PX ] ? D F .
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: August 18, 2020
    Assignee: General Electric Technology GmbH
    Inventors: Hengxu Ha, Sankara Subramanian Sri Gopala Krishna Murthi
  • Patent number: 10739408
    Abstract: Provided is a diagnostic apparatus for a power system. The power system comprises a battery assembly and at least one contactor. Each of the at least one contactor is configured to selectively close or open a power supply path between the battery assembly and a load. The diagnostic apparatus is configured to execute one of a first diagnostic function of determining a current leakage of the battery assembly and a second diagnostic function of determining a short circuit of the at least one contactor while the other one is being executed.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: August 11, 2020
    Assignee: LG CHEM, LTD.
    Inventor: Jeong-Joo Song
  • Patent number: 10725085
    Abstract: A method determines a fault position of a fault on an electrical line. First time stamped current and voltage values are measured at a first line end. Second time stamped current and voltage values are measured at a second line end. The fault position of the line is determined from these measured values. To carry out positioning of a data window for fault location according to the traveling wave principle, after the first current and voltage values are measured at the first line end, the second current and voltage values are determined, which indicate the current or voltage at the second line end. Estimated second current or voltage values are compared with the values measured at the second line end, and the first and second current and voltage values that lie within a period of time established by a first data window are employed to determine a first fault position.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: July 28, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Cezary Dzienis, Andreas Jurisch
  • Patent number: 10705132
    Abstract: A method including feeding a test signal into a first end of a conductor track of a semiconductor chip, wherein the conductor track crosses an indentation of a substrate of the semiconductor chip; and detecting the test signal at a second ends of the conductor track, which wherein the detected test signal is indicative of fracture of the substrate of the semiconductor chip at the indentation.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: July 7, 2020
    Assignee: Infineon Technologies AG
    Inventors: Thomas Zettler, Dirk Hammerschmidt, Friedrich Rasbornig, Wolfgang Scheibenzuber, Hans-Joerg Wagner
  • Patent number: 10627434
    Abstract: A measuring method is provided for monitoring a component of an electrical assembly, in which the voltage across at least one component of the electrical assembly and a current through the component are measured, and in which, from measurement values for the voltage and the current, a resistance value of the component is determined. The voltage and the current are measured in successive switching periods of a periodic switching signal of the electrical assembly, and the resistance value is determined based on the measurement values for voltage and current from the successive switching periods. A measuring circuit for monitoring a component of an electrical assembly is provided with an analog/digital converter. An electrical assembly, in particular a switching power supply, having such a measuring circuit is also provided.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: April 21, 2020
    Assignee: Weidmüller interface GmbH & Co. KG
    Inventors: Carlos Paiz Gatica, Rico Schindler
  • Patent number: 10605846
    Abstract: A diagnostic system having first and second applications is provided. The first application multiplies a first voltage value associated with a voltage regulator by a first correction value to obtain a first corrected voltage value. The first application receives a second corrected voltage value from the second application. The first application sets a first voltage regulator status flag equal to a first fault value when a difference between the first and second corrected voltage values is greater than a threshold difference value. The first diagnostic handler application generates control signals if the first voltage regulator status flag is equal to the first fault value.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: March 31, 2020
    Assignee: LG Chem, Ltd.
    Inventor: Kerfegar K. Katrak
  • Patent number: 10598720
    Abstract: The invention relates to a method for insulation fault location as well as to an insulation fault location system for an ungrounded power supply system. The main idea of the present invention rests upon the idea that while preserving a predetermined maximally admissible test current amplitude, a test current pulse duration of a test current is adaptively set such that all interfering values are eliminated in a captured differential current, in particular the leakage currents arising in consequence of large supply leakage capacitances. Should a test of the value of the final value of the differential current reveal that a test current threshold value has been exceeded, this exceedance can be seen as an indicator that the respective conductor section is therefore in the fault circuit.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 24, 2020
    Assignee: BENDER GMBH & CO. KG
    Inventors: Oliver Schaefer, Helmut Becker, Carsten Hartmann
  • Patent number: 10594091
    Abstract: A method for determining an operational state of a subsea connector unit, wherein the method includes: providing at least one operational value and/or a plurality of operational values of at least one operational parameter describing a specific operational condition at at least one selected location of the subsea connector unit and comparing the at least one provided operational value and/or the plurality of provided operational values and/or at least one derivative derived from the at least one provided operational value and/or at least one derivative derived from the plurality of provided operational values with at least one predefined reference and thus determining an operational state of the subsea connector unit on the basis of the comparison. An assembly monitors an operational state of a subsea connector unit and a subsea connector unit has the assembly.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 17, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventor: Daniel Walton
  • Patent number: 10586688
    Abstract: A first inductive loop is formed within a printed circuit board (PCB). The PCB is mounted in a fixed spatial relationship with a radiofrequency power supply structure. A second inductive loop is formed within the PCB. The second inductive loop is positioned in fixed spatial relationship with the first inductive loop such that a distance between the centerpoints of the first and second inductive loops has a fixed value and is precisely known. Each of the first and second inductive loops is formed in an essentially identical manner with regard to number of complete turns of the loops and a size of the loops. A first voltage signal present on the first inductive loop and a second voltage signal present on the second inductive loop and the distance between the first and second loops provide for determination of a radiofrequency current present on the radiofrequency power supply structure.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: March 10, 2020
    Assignee: Lam Research Corporation
    Inventors: Andras Kuthi, Shen Peng, Jimmy Nguyen
  • Patent number: 10581237
    Abstract: The present disclosure pertains to systems and methods for obtaining and processing high-frequency electric power system measurements for control and monitoring of an electric power system. High-frequency measurements may be used to detect traveling waves and/or to detect faults in the electric power system. In various embodiments, a processing device may receive high-frequency electric power system measurements from each of a local location and a remote location and may process the high-frequency electric power system measurements to identify and locate a fault. The occurrence of and location of a fault and may be used to implement protective actions to remediate identified faults.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: March 3, 2020
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, David E. Whitehead, Mangapathirao Venkata Mynam
  • Patent number: 10575072
    Abstract: The present invention provides a gas meter fault prompting method and Internet of Things (IoT) system based on a compound IoT, and relates to the field of an IoT. According to the gas meter fault prompting method and IoT system based on the compound IoT, each of object sub-platforms is configured to check its own operation state information in real time for a fault; a management platform is configured to inquire a fault type and a fault solution according to the operation state information and preset fault inquiry table, and send the fault type and solution to a corresponding user sub-platform via the service platform to display, so that a user can know and view the fault type and solution of a gas meter at the user sub-platform in a timely manner and thus may repair some simple faults of the gas meter independently; the invitation for a person of a gas company to the site for handling turns out to be unnecessary; and therefore, the time cost and the labor cost are saved.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: February 25, 2020
    Assignee: Chengdu Qinchuan IoT Technology Co., Ltd.
    Inventor: Zehua Shao
  • Patent number: 10564206
    Abstract: In described examples, a time-domain analyzer is arranged to generate an indication of a number of high-frequency events of an electrical monitor signal that includes a fundamental periodic frequency. The high-frequency events include frequencies higher than the fundamental periodic frequency. A frequency-domain analyzer is arranged to generate frequency band information in response to frequencies of the electrical monitor signal that are higher than the fundamental periodic frequency. A fault detector is arranged to monitor the indication of the number of high-frequency events and the generated frequency band information, and to generate a fault flag in response to the monitored indication of the number of high-frequency events and the generated frequency band information.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: February 18, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Prasanna U. Rajagopal, Kallikuppa M Sreenivasa, Amit G Kumbasi
  • Patent number: 10545179
    Abstract: A current sensor chip and systems and methods for calibrating thereof are provided. The current sensor chip includes a first magnetic field sensor element configured to generate a first analog sensor signal representing a magnetic field caused by a primary current passing through an external primary conductor, an analog-to-digital converter coupled to the first magnetic field sensor element and configured to generate a digital sensor signal based on the first analog sensor signal, a digital signal processor coupled to the analog-to-digital converter to receive the digital sensor signal and configured to determine, based on the digital sensor signal and based on calibration parameters stored in memory, a corresponding current measurement signal that represents the primary current, and an external output pin coupled to the first magnetic field sensor element to receive the first analog sensor signal or an analog signal derived therefrom by analog signal processing.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: January 28, 2020
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10538165
    Abstract: A parameter estimation system includes a first coil configured to be loosely inductively coupled to a second coil. A controller is programmed to output parameters of the first coil and second coil. The controller is programmed to estimate the parameters based on voltage and current measurement from only the first or the second coil. The voltage and current measurements may be used in a Kalman filter. In some configurations, the controller is further programmed to command a short circuit between terminals of the second coil and apply a test voltage to the first coil. The first coil may be part of a vehicle charging station and the second coil may be part of a vehicle. The parameters may be utilized to control charging of the vehicle.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: January 21, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Sara Dadras, Hadi Malek, Mohamed Elshaer, Christopher W. Bell
  • Patent number: 10523810
    Abstract: In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for implementing DSL line fault determination and localization via SELT, DELT, and MELT diagnostics. For example, such a system or computer implemented method may include means for: receiving Metallic Loop/Line Testing (MELT) test output from applying a MELT test to a DSL line; receiving Dual-End Line Testing (DELT) test output from applying a DELT test to the DSL line; receiving Single-Ended Loop Testing (SELT) test output from applying a SELT test to the DSL line; determining one or more faults are present on the DSL line by comparing the MELT test output, the DELT test output, and the SELT test output; and localizing the one or more determined faults by comparing the MELT test output, the DELT test output, and the SELT test output. Other related embodiments are disclosed.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: December 31, 2019
    Assignee: ASSIA SPE, LLC
    Inventors: Mehdi Mohseni, Ming-Yang Chen
  • Patent number: 10522995
    Abstract: The present disclosure pertains to systems and methods for supervising protective elements in electric power systems. In one embodiment, a system may be configured to selectively enable a protective action an electric power system. The system may include a data acquisition subsystem receive a plurality of representations of electrical conditions associated with at least a portion of the electric power delivery system. An incremental quantities module may calculate incremental quantities from the plurality of representations. The system may be configured to detect an event, to determine an incremental quantities value during the event, and to determine a time-varying threshold. The incremental quantities value during the event may be compared with the time-varying threshold, and a protective action module may be enabled to implement a protective action when the value of the incremental quantities value during the event exceeds the time-varying threshold.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: December 31, 2019
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Bogdan Z. Kasztenny, Mangapathirao Venkata Mynam, Armando Guzman-Casillas, Normann Fischer
  • Patent number: 10509064
    Abstract: Embodiments of the invention provide a capability of determining an input impedance of a connected Device Under Test based on Waveform Monitoring of an output signal of a waveform generator. Using embodiments of the invention, the input impedance of DUT is determined from the waveform monitoring results. The impedance information of the DUT together with the actual waveform provided to the DUT allows systems according to embodiments of the invention capable of characterizing circuit behavior for performance optimizing and issue debugging for the DUT.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: December 17, 2019
    Assignee: Tektronix, Inc.
    Inventor: Zhiguang Fan
  • Patent number: 10493752
    Abstract: Measuring an inkjet nozzle may include taking at least one impedance measurement after the firing command is sent to detect the presence of a drive bubble and taking another impedance measurement to detect a collapse of the drive bubble.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: December 3, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Eric T. Martin, Andrew L. Van Brocklin, David Maxfield
  • Patent number: 10483747
    Abstract: The present disclosure relates to a fault in an electric power delivery system. In one embodiment, a system may include a data acquisition subsystem configured to receive a plurality of representations of electrical conditions associated with at least a portion of the electric power delivery system. A traveling wave detector may be configured to detect a traveling wave event based on the plurality of representations of electrical conditions. A traveling wave directional subsystem may be configured to calculate an energy value of the traveling wave event during an accumulation period based on the detection of the traveling wave by the traveling wave disturbance detector. A maximum and a minimum energy value may be determined during the accumulation period. A fault direction may be determined based on the maximum energy value and the minimum energy value. A fault detector subsystem configured to declare a fault based on the determined fault direction.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: November 19, 2019
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Armando Guzman-Casillas, Bogdan Z. Kasztenny, Mangapathirao Venkata Mynam
  • Patent number: 10476252
    Abstract: In one example, an arc fault circuit interrupter (AFCI) is provided. The AFCI may include a plurality of current arc signature detection blocks configured to output a plurality of corresponding current arc signatures, and a processor. The processor may be configured to receive each of the plurality of current arc signature from each of plurality of current arc signature detection blocks, respectively, and generate a first trigger signal. The processor may be further configured to assess each of the current arc signatures, determine whether an arc fault exists based on the assessment, and generate the first trigger signal if an arc fault is determined to exist. A method for detecting an arc fault is also provided.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: November 12, 2019
    Inventor: Ze Chen
  • Patent number: 10431993
    Abstract: A module maintenance system includes a battery module, a charging device, and a rig. The battery module has a series configuration and a parallel configuration. In the parallel configuration, the rig connects each battery cell of the battery module in parallel and the charging device charges each battery cell of the battery module using the rig. In the series configuration, the battery module serially connects each battery cell of the battery module to a first terminal and a second terminal and the charging device charges each battery cell of the battery module using the first terminal and the second terminal.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: October 1, 2019
    Assignee: Artisan Vehicle Systems Inc.
    Inventors: Brian R. Huff, Mike Kasaba, Russell Davis
  • Patent number: 10422827
    Abstract: The present disclosure relates to detection of faults in an electric power system. In one embodiment, a time-domain traveling wave directional subsystem is configured to receive a plurality of current traveling wave and a plurality of voltage traveling wave time-domain representations based on electrical conditions in the electric power delivery system. The plurality of current and voltage traveling wave time-domain representations may be compared to respective minimum thresholds. An integral may be generated based on a product of the plurality of current and voltage traveling wave time-domain representations when the current and voltage traveling wave time-domain representations exceed the minimum thresholds. A sign of the integral may reflect whether the fault is in the forward or reverse direction. A fault detector subsystem configured to declare the fault when the sign reflects that the fault is in the forward direction and the integral exceeds a security margin.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 24, 2019
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Mangapathirao Venkata Mynam, David E. Whitehead, Bogdan Z. Kasztenny, Armando Guzman-Casillas, Veselin Skendzic
  • Patent number: 10411479
    Abstract: A detection circuit includes: a first switch, a second switch, a first detection resistor and a second detection resistor, wherein the first switch and the first detection resistor are coupled in series to form a first branch, a first end of the first branch is electrically connected with a positive bus of the photovoltaic inverter and a second end of the first branch is electrically connected with a ground; and the second switch and the second detection resistor are coupled in series to form a second branch, a first end of the second branch is electrically connected with a negative bus of the photovoltaic inverter and a second end of the second branch is electrically connected with the ground.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: September 10, 2019
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Bingwen Weng, Xuancai Zhu, Kerou Wang, Jinfa Zhang
  • Patent number: 10401412
    Abstract: In described examples, a time-domain analyzer is arranged to generate an indication of a number of high-frequency events of an electrical monitor signal that includes a fundamental periodic frequency. The high-frequency events include frequencies higher than the fundamental periodic frequency. A frequency-domain analyzer is arranged to generate frequency band information in response to frequencies of the electrical monitor signal that are higher than the fundamental periodic frequency. A fault detector is arranged to monitor the indication of the number of high-frequency events and the generated frequency band information, and to generate a fault flag in response to the monitored indication of the number of high-frequency events and the generated frequency band information.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: September 3, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Prasanna U Rajagopal, Kallikuppa M Sreenivasa, Amit G Kumbasi
  • Patent number: 10396545
    Abstract: The invention relates to an insulation monitoring device and to a method for conforming-to-standards monitoring of an insulation resistance of an ungrounded single-phase or multi-phase power supply system having at least two active conductors. According to the invention, the insulation monitoring device comprises a voltage monitoring circuit for permanently registering the conductor voltage to ground potential for at least one active conductor. If an excess voltage is detected on an active conductor, the voltage monitoring circuit generates a shut-down signal so as to shut down the power supply system.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 27, 2019
    Assignee: BENDER GMBH & CO. KG
    Inventors: Dirk Pieler, Oliver Schaefer
  • Patent number: 10338106
    Abstract: A method and apparatus for discriminating between electric field sources. In one embodiment, the apparatus comprises a mobile detection system comprising a sensor probe for remotely measuring an electric field generated by an electric field source in a patrolled area; and a processor, coupled to the sensor probe, for processing data received from the sensor probe to generate a first field strength and at least a second field strength for determining whether the electric field source is potentially hazardous.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: July 2, 2019
    Assignee: Power Survey LLC
    Inventor: David Kalokitis
  • Patent number: 10317441
    Abstract: A device (1) for detecting a problem in or near a load (2, 3) coupled to a cable (6) of a cable system comprises an analyzing part (11) for analyzing a waveform of a cable signal for feeding the load (2, 3) and a deciding part (12) for in response to an analysis result deciding whether a problem in or near the load (2, 3) is present or not. The load (2, 3) may be coupled to the cable (6) via a driver (4, 5). The problem in or near the load (2, 3) may result in the driver (4, 5) amending a value of the waveform at or near a crest or a trough of the waveform. The analysis result may define whether the waveform has been amended by more than a threshold or not. The amending of the value of the waveform at or near the crest or the trough may comprise a positive pulse added to a crest or a negative pulse added to a trough.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: June 11, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Hongxin Chen, Hong Chen
  • Patent number: 10310002
    Abstract: Provided are an apparatus and method for detecting a leakage current of a high-power line of an inverter of a 48V mild hybrid system.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 4, 2019
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Sang Min Kim
  • Patent number: 10310004
    Abstract: The present disclosure relates to detection of faults in an electric power system. In one embodiment, a time-domain traveling wave differential subsystem is configured to determine at a first terminal a first index between an arrival maximum of a traveling wave generated by a fault at the first terminal and an exit maximum of the traveling wave. The traveling wave subsystem also determines a second index between an arrival maximum of the traveling wave at the second terminal and an exit maximum of the traveling wave. An operating quantity and a restraint quantity may be determined based on a magnitude of the representations of electrical conditions in the first index and the second index. A fault may be declared based on a comparison of the operating quantity and the restraint quantity. A protective action subsystem may be configured to implement a protective action based on the declaration of the fault.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: June 4, 2019
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Mangapathirao Venkata Mynam, David E. Whitehead, Bogdan Z. Kasztenny, Armando Guzman-Casillas, Veselin Skendzic
  • Patent number: 10300790
    Abstract: A power transmission system facilitates the location of an insulation fault in the power transmission system by providing a power transmission network, an insulation fault locating unit and a connecting line system which is electrically connected to the insulation fault locating unit and to the power transmission network. The connecting line system includes a switch constructed to interrupt and re-establish an electrical connection between the power transmission network and the insulation fault locating unit. A vehicle, in particular a rail vehicle, including a power transmission system and a method for operating a power transmission system, are also provided.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 28, 2019
    Assignee: Siemens Mobility GmbH
    Inventors: Marco Brandmeier, Stefan Di Bonaventura, Markus Herzog
  • Patent number: 10295586
    Abstract: There is provided mechanisms for detecting a fault of a transmission line (20) in a power system (10) comprising at least one of an extreme weak system (10a) and an extreme strong system (10b). A method comprises obtaining travelling wave polarities from two terminals (21a, 21b) of the transmission line during occurrence of the fault, the travelling wave polarities being defined by two current polarities and two voltage polarities. The method comprises determining the obtained travelling wave polarities to be detectable and the obtained travelling wave polarities to be non-detectable. The method comprises detecting the fault to be internal based on the detectable travelling wave polarities and the non-detectable travelling wave polarities. There is also provided an arrangement configured to perform such a method.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 21, 2019
    Assignee: ABB Schweiz AG
    Inventors: YouYi Li, Kai Liu, Jianping Wang
  • Patent number: 10269425
    Abstract: A processing unit includes a circuit including a current mirror, and a capacitor providing a weight based on a charge level of the capacitor. The capacitor is charged or discharged by the current mirror.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: April 23, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tayfun Gokmen, Seyoung Kim, Hyung-Min Lee, Wooram Lee, Paul Michael Solomon
  • Patent number: 10218374
    Abstract: In at least some embodiments, a system comprises a frequency generator configured to generate a second clock signal having a second frequency using a first clock signal having a first frequency. The second frequency is offset from the first frequency and each of a plurality of harmonic frequencies of the second frequency is offset from a harmonic frequency of the first frequency. The system also includes a power converter configured to produce a power signal that at least partially corresponds to the second frequency. The system further comprises an analog-to-digital converter (ADC) configured to sample and convert analog voltages at the first frequency. The ADC is powered by the power signal.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: February 26, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Martijn Fridus Snoeij, Mikhail Valeryevich Ivanov, Roberto Giampiero Massolini, Brian David Johnson
  • Patent number: 10168847
    Abstract: A processing system comprises a sensing module, a first internal diagnostic mechanism, and a determination module. The sensing module is configured to couple with a first sensor electrode path of a plurality of sensor electrode paths, wherein the sensing module is configured to drive the first sensor electrode path with a first signal. The first internal diagnostic mechanism configured to couple with a second sensor electrode path and configured to acquire a test signal output while the sensing module drives the first sensor electrode path with the first signal. The first internal diagnostic mechanism comprises a selectable current source configured to couple with the second sensor electrode path, and wherein the selectable current source is enabled during acquisition of the test signal output. The determination module configured to determine whether the first and second sensor electrode paths are ohmically coupled together based on the test signal output.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: January 1, 2019
    Assignee: Synaptics Incorporated
    Inventors: Jorge Saucedo, John M. Weinerth, Wen Fang
  • Patent number: 10172053
    Abstract: A radiographic image capturing system includes: a radiographic image capturing apparatus which wirelessly transfers a signal value read from each of a plurality of radiation detecting elements; a channel switch controlling device capable of switching a channel used for wirelessly transferring the signal value from the radiographic image capturing apparatus to another channel; a notifying device which gives a notice to an operator who operates the radiographic image capturing system; and a display device which displays a radiographic image generated based on the signal value transferred from the radiographic image capturing apparatus, wherein the notifying device notifies an operator of the fact that the channel is being switched, at least once, while the radiographic image capturing apparatus is switching the channel.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: January 1, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takanori Ando
  • Patent number: 10162015
    Abstract: Embodiments of the disclosure relate to systems and methods for determining a fault location in a three-phase series-compensated power transmission line system by using symmetrical components-based formulas that describe various voltage and current relationships. The voltage and current relationships can be derived using a synchronous measurement procedure that is concurrently executed at a sending end and a receiving end of the first series-compensated power transmission line system. Furthermore, determining the fault location in accordance with certain embodiments of the disclosure can eliminate one or more of a need to calculate an impedance value of any of the series capacitors or the series capacitor protection elements that are a part of the three-phase series-compensated power transmission line system, a need to monitor any of the series capacitor protection elements, and a need to measure a voltage drop across any of the series capacitors.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 25, 2018
    Assignee: General Electric Company
    Inventors: Zhihan Xu, Tirath Bains, Tarlochan Sidhu, Mohammad Reza Dadash Zadeh
  • Patent number: 10120012
    Abstract: A method and an apparatus for fault detection in a mixed configuration power transmission line including a plurality of sections arranged between one end of the transmission line and the other end of the transmission line and including at least one overhead line section and at least one cable section are disclosed. Based on a comparison travelling wave voltage or current time derivatives at the one end and the other end of the power transmission line with selected threshold values, it is determined if there is a fault occurring in at least one cable section of the power transmission line. Embodiments utilize amplification of travelling wave voltages and/or currents which may occur at junctions between a cable section and an adjacent overhead line section in determining if the fault occurs in a cable section of the power transmission line.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: November 6, 2018
    Assignee: ABB SCHWEIZ AG
    Inventors: Arkadiusz Burek, Jianping Wang, Jiuping Pan, Reynaldo Nuqui, YouYi Li
  • Patent number: 10082569
    Abstract: A system for remote monitoring a network of distributed antennas. The system including at least one antenna electrically coupled to a radio-frequency (RF) transmission line, and a monitoring module electrically coupled to the RF transmission line, the monitoring module configured to receive a direct-current (DC) coded signal via the RF transmission line and compare the DC coded signal to at least one code saved in a memory of the monitoring module to determine a status associated with the at least one antenna.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: September 25, 2018
    Assignee: FIRECOM, INC.
    Inventor: Patrick Adamo
  • Patent number: 10074549
    Abstract: In a method for acquiring data indicating an electrostatic capacitance between a focus ring and a measuring device includes a disc-shaped base substrate, sensor units arranged along an edge of the base substrate and a circuit substrate mounted on the base substrate, a processor acquires one or more first data sets respectively including a plurality of digital values indicating an electrostatic capacitance of a corresponding sensor unit. The measuring device is transferred to a region on the mounting table surrounded by the focus ring. The processor acquires second data sets when one or more digital values or an average of the digital values included in each of said one or more first data sets exceeds a first threshold. The processor stores measurement data including the respective second data sets or averages of the digital values of each of the second data sets. The measuring device is unloaded from the chamber.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: September 11, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kippei Sugita, Tomohide Minami
  • Patent number: 10060821
    Abstract: A detection apparatus arranged to detect defects within a flexible pipe body. The detection apparatus comprises an electrical power supply and a first meter. The electrical power supply is arranged to couple between, and to supply current to, first and second electrically conductive members extending at least partially along the length of a flexible pipe body and electrically isolated from one another except for being electrically connected at a point remote from the power supply. The first meter is arranged to detect variation between the current flowing in each electrically conductive member. Detected variation is indicative of a pipe body defect causing an Earth fault along one of the electrically conductive members. A corresponding method, a pipeline apparatus including the detection apparatus and a method of forming the pipeline apparatus are also disclosed.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: August 28, 2018
    Assignee: GE Oil & Gas UK Limited
    Inventors: John Cross McNab, Geoffrey Stephen Graham, Philip Michael Hunter Nott
  • Patent number: 10024888
    Abstract: A data receiving device may include an envelope detector that may include first and second inputs configured to receive a differential input signal, a first pair of detectors coupled to the first input and configured to generate first and second detector outputs, and a second pair of detectors coupled to the second input and configured to generate third and fourth detector outputs. The envelope detector may also include a logic circuit configured to generate a reset based upon the first and third detectors. The data receiving device may also include a receiver circuit coupled to the envelope detector and configured to generate an output based upon the second and fourth detectors along with the reset, and a first bit detection circuit coupled to the receiver circuit.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 17, 2018
    Assignee: STMicroelectronics International N.V.
    Inventors: Daljeet Kumar, Tapas Nandy, Surendra Kumar
  • Patent number: 10027493
    Abstract: A PoE power utilization method constituted of: detecting a first function of a voltage between a current path node and a current return path node during a first time period and during a second time period, the second time period different than the first time period; sensing a second function of the magnitude of a current flowing through the current path during the second time period; responsive to the detected first time period voltage function, the detected second time period voltage function and the sensed second time period current magnitude function, determining a third function of a resistance seen by the current path; and outputting an indication of the determined resistance function.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: July 17, 2018
    Assignee: Microsemi P.O.E. Ltd.
    Inventor: Yair Darshan
  • Patent number: 10017157
    Abstract: The vehicle security system is a personal security system adapted for use with an automobile. The vehicle security system is signaling system that is initiated through the actuation of a switch located within the interior of the automobile. Once activated, the vehicle security system initiates a security procedure that sends a continuous stream of messages to an appropriate authority. Messages sent through the security procedure contain identification information regarding the vehicle, the updated GPS coordinates of the vehicle, and a file containing an image of the current security situation. The vehicle security system further comprises a kill switch that allows the appropriate authority to disable the automobile. The vehicle security system comprises a logic module, a communication module, a GPS module, a plurality of activation switches, a plurality of cameras, and a kill switch.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: July 10, 2018
    Inventor: Jackie Walden
  • Patent number: 10012563
    Abstract: A design of optical testing device or system for fiber arrays is disclosed. According to one aspect of the invention, an array of light sources and an array of detectors are disclosed. One of the light sources is controlled to be turned on to test a designated fiber in an array of fibers being tested for connection issues. A microcontroller is configured to determine which one of the detectors is detecting a light beam from one of the light sources, and mark a channel of the array of fibers accordingly depending on if the one of the detectors is supposed to detect the light beam; if another one of the detectors detects the light beam; or if none of the detectors detects the light beam.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: July 3, 2018
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Xinzhong Wang, Yao Li
  • Patent number: 9983228
    Abstract: Embodiments of the present invention provide an improved two-cable connection system for connecting electrical test instrumentation to a device under test (DUT). In one embodiment, a single pair of equal-length triaxial cables each has a desired characteristic impedance. Each cable has a center connecter, intermediate conductor, and outer conductor. The proximal end of each cable is connected to the test instrumentation, and the distal ends are located at the DUT. At the distal end, the center conductors are connected to the DUT, the intermediate conductors are allowed to float, and the outer conductors are connected to each other. The proximal end of each cable is connected to the device using an appropriate connection for the test that will be performed. This allows the test instrumentation to perform different types of tests without changing connections to the DUT.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: May 29, 2018
    Assignee: Keithley Instruments, LLC
    Inventors: Wayne C. Goeke, Gregory Sobolewski
  • Patent number: 9973988
    Abstract: A radiographic image capturing system includes: a radiographic image capturing apparatus which wirelessly transfers a signal value read from each of a plurality of radiation detecting elements; a channel switch controlling device capable of switching a channel used for wirelessly transferring the signal value from the radiographic image capturing apparatus to another channel; a notifying device which gives a notice to an operator who operates the radiographic image capturing system; and a display device which displays a radiographic image generated based on the signal value transferred from the radiographic image capturing apparatus, wherein the notifying device notifies an operator of the fact that the channel is being switched, at least once, while the radiographic image capturing apparatus is switching the channel.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 15, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takanori Ando
  • Patent number: 9972989
    Abstract: An optical voltage sensor for measuring voltage on an underground power line or for use in other scenarios in which access to a conductor is available through a blind hole. The optical voltage sensor includes a light modulating member, such as a Pockel's crystal. A reflective, conductive member is positioned at one end of the light modulating member and another conductive member is positioned at an opposed end. A voltage capacitively coupled to the reflective conductive member induces a voltage across the light modulating member, thereby impacting the amount of modulation. A beam of light is directed through the crystal and reflected back out of the crystal, where the amount of modulating can be measured. The amount of modulation indicates a measured voltage, and can be transmitted to a monitoring station where processing can determine the status of the power grid or generate other results based on the measured voltage.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 15, 2018
    Assignee: ACLARA TECHNOLOGIES LLC
    Inventor: Gregory M. Nulty
  • Patent number: 9950517
    Abstract: Measuring an inkjet nozzle may include taking at least one impedance measurement after the firing command is sent to detect the presence of a drive bubble and taking another impedance measurement to detect a collapse of the drive bubble.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 24, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric T. Martin, Andrew L. Van Brocklin, David Maxfield
  • Patent number: 9948420
    Abstract: Systems and methods for time aligning time-stamped measurements using a voting scheme are disclosed. The system and method filter incoming measurements based on whether the time-stamped measurements fall within a defined time window. In response to determining that the time stamp falls within the defined time window, the time-stamped measurement is added to a time slice corresponding with the time stamp. In response to determining that the time-stamped measurement does not fall within the defined time window, the time window is re-established based on a voting scheme.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 17, 2018
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventor: Aaron E. Wright