Instruments And Devices For Fault Testing Patents (Class 324/555)
  • Patent number: 12126160
    Abstract: Arc fault protection for a digital electricity distribution system that provides power to a device. The system includes an arc fault circuit interrupter (“AFCI”) and a controller. The controller is connected to the AFCI. The controller is operable to control the AFCI to disable power to the device. The controller includes a processor and a memory. The controller is configured to transmit a digital electricity energy packet through the AFCI to the device, measure an amount of error associated with the digital electricity energy packet, evaluate the amount of error associated with the digital electricity energy packet, determine whether an arc fault condition is present based on the evaluation of the amount of error associated with the digital electricity energy packet, and control the AFCI to disable power to the device when the arc fault condition is determined to be present.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: October 22, 2024
    Assignee: Hubbell Incorporated
    Inventor: John Brower
  • Patent number: 12105135
    Abstract: Disclosed in the present disclosure are an insulation resistance detection circuit, a resistance detection method, a converter and a photovoltaic centrifuge. The insulation resistance detection circuit includes a resistance detection module connected between a positive electrode and a negative electrode of a direct-current bus to be detected. The resistance detection module includes a first resistance bridge and a second resistance bridge arranged in parallel. The first resistance bridge is connected to the positive electrode of the direct-current bus by means of a first sampling resistor R1. The second resistance bridge is connected to the negative electrode of the direct-current bus by means of a second sampling resistor R2, and both the first sampling resistor R1 and the second sampling resistor R2 are equipped with voltage sampling chips.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: October 1, 2024
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Yongying Guo, Meng Huang, Yingyi Jiang, Songru Huang, Xiaogao Liu
  • Patent number: 12095206
    Abstract: Portable electronic devices by their nature are designed to be regularly physically repositioned and relocated, which can cause significant mechanical stresses on internal components, including printed circuit boards (PCBs). This is particularly true when a portable electronic device is handled roughly. These significant mechanical stresses can cause threaded mechanical fasteners securing the PCBs to become dislodged. A dislodged threaded mechanical fastener may contact electrically conductive features of the PCB or other internal components, thereby causing a ground fault or short. At a minimum, this may cause the portable electronic device to not work well, or at all. Further, this may cause the portable electronic device to overheat and become a fire hazard. The presently disclosed technology detects if the threaded mechanical fasteners within a portable electronic device become dislodged. A user of the portable electronic device may then be warned, and the portable electronic device may be powered down.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: September 17, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Donghwi Kim, Jaejin Lee, Manish Shah
  • Patent number: 12050253
    Abstract: A test fixture (20) for testing continuity in at least one electrode of a neuromodulation device. The test fixture may comprise a substrate (22), at least one electrically conductive pad (24a) disposed on the substrate for reducing pressure applied to the at least one electrode when the electrically conductive pad makes contact with an exposed surface of the electrode, and a wire (26a) extending from the at least one electrically conductive pad. The pad may be formed of a non-abrasive material, such as conductive foam or smooth metal. The substrate may be a probe formed with a number of slots for holding pads and routing wires, a mandrel with openings for holding pads and routing wires, and a flexible circuit with exposed smooth metal surfaces. The test fixture may be suitable for testing cuff-like and paddle-like devices.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: July 30, 2024
    Assignee: GALVANI BIOELECTRONICS LIMITED
    Inventors: Ellen Kaplan, Cindy Au, Pey-Jiun Ko
  • Patent number: 12044735
    Abstract: A method for measuring insulation resistance in an inverter that has a DC link circuit and a bridge circuit, connected to the DC link circuit, for driving an AC current via a bridge center tap is disclosed. The method includes connecting the bridge center tap to a grounding point, successively connecting, by way of the bridge circuit, the bridge center tap that is connected to the grounding point to two points of the ungrounded DC link circuit that differ in terms of voltage, and measuring the current flowing from the two points that differ in terms of voltage to the grounding point. The two points of the ungrounded DC link circuit that differ in terms of voltage are selected from a group of points that includes at least one intermediate voltage point of the DC link circuit in addition to two end points of the DC link circuit, such that the voltages present between the two points that differ in terms of voltage and the grounding point do not exceed a predefined voltage limit value.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: July 23, 2024
    Assignee: SMA Solar Technology AG
    Inventors: Steffen Aust, Martin Putz
  • Patent number: 11994967
    Abstract: A test and measurement device includes an input port for receiving a bus conducting data from a device under test, and processing element coupled to the input port. The processing element is configured to execute instructions that cause the processing element to determine a data sequence from a signal of the bus received on a main channel of the device, and use information from at least one other signal of the bus on an auxiliary channel of the device based upon a protocol associated with the bus to adjust parameters for performing error detection on the data sequence.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: May 28, 2024
    Assignee: Tektronix, Inc.
    Inventor: Joshua J. O'Brien
  • Patent number: 11987017
    Abstract: In one embodiment, a catheter manufacturing method includes forming flexible circuit strips with respective different symbols marked thereon, each strip including at least one respective electrode, attaching one end of each of the flexible circuit strips to a catheter coupler with the flexible circuit strips being ordered around a circumference of the catheter coupler responsively to the respective symbols of respective ones of the flexible circuit strips, and forming a distal end assembly of a catheter, the distal end assembly comprising the flexible circuit strips attached to the catheter coupler.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: May 21, 2024
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Christopher Thomas Beeckler, Zulema Berenice Espinoza
  • Patent number: 11977130
    Abstract: A circuit for alternating current and direct current leakage detection. The circuit can achieve multiple functions such as direct current leakage detection, alternating current leakage detection, and leakage sampling link self-check.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 7, 2024
    Assignee: QINGDAO TOPSCOMM COMMUNICATION CO., LTD
    Inventors: Chengwen Yan, Jianhua Wang, Zhen Liu
  • Patent number: 11906600
    Abstract: An electrical test device for testing electrical characteristics of a cable assembly with a plurality of cable connectors includes a frame having a test platform, and an electrical tester mounted on the frame for testing the electrical characteristics of the cable assembly. A cable connecting and holding mechanism is provided on the test platform and includes a plurality of connector carriers, wherein each connector carrier holds one of the plurality of cable connectors of the cable assembly and electrically connecting the one cable connector to the electrical tester.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: February 20, 2024
    Assignee: Tyco Electronics (Shanghai) Co., Ltd.
    Inventors: An (Joshua) Yang, Lvhai (Samuel) Hu
  • Patent number: 11844561
    Abstract: Disclosed embodiments include an apparatus, a system and a method for shunting current between first and second electrodes to temporarily reduce current applied through first and second electrodes. In a nonlimiting embodiment, an illustrative apparatus includes first and second electrode couplings configured to electrically engage proximal ends of the first and second electrodes, respectively, the first and second electrodes each having a distal end configured to conduct electrical current generated by a switchable current source therebetween and through an electrically conductive target. A current inrush regulator is configured to temporarily shunt at least a portion of the electrical current generated by the switchable current source to temporarily reduce the electrical current passing between the distal ends of the first and second electrodes through the electrically conductive target.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: December 19, 2023
    Assignee: Gyrus ACMI, Inc.
    Inventor: Brandon J. Shuman
  • Patent number: 11844127
    Abstract: Apparatus and methods for testing a cable connection in order to determine whether the cable connection can adequately support delivery of one or more services delivered from a service provider infrastructure. In one embodiment, the methods and apparatus are adapted to detect RF signals on a coaxial cable connection or outlet within a premises, evaluate the signals, and determine the readiness status thereof based on the evaluation. In one variant, an algorithm is used for the evaluation of the RF signals, and is dependent on at least a geographical location of the cable outlet being tested. The algorithm evaluates a list of prospective RF channels for signal strength so as to correlate or exclude any signals present from one or more types of sources (e.g., OTA broadcasts, satellite service providers, etc.).
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: December 12, 2023
    Assignee: CHARTER COMMUNICATIONS OPERATING, LLC
    Inventors: Gregory Greene, Stephen Bartlett, Wen-Yen Picard Huang, David L. Temlak
  • Patent number: 11817702
    Abstract: A power restoration system for restoring power to feeder segments in response to a fault. The system includes a reclosing device having a switch and one or more sensors for measuring current and/or voltage on the feeder, where the reclosing device performs a pulse testing process to determine circuit fault conditions. The system also includes a plurality of switching devices electrically coupled along the feeder, where each switching device includes a section switch and one or more sensors for measuring current and/or voltage on the at least one feeder. In one embodiment, each switching device recognizes predetermined pulse codes having a sequence of pulses, where the reclosing device uses the pulse testing process to generate and selectively transmit defined pulse codes on the feeder that selectively cause the section switches to change states between an open state and a closed state depending on the code.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: November 14, 2023
    Assignee: S&C Electric Company
    Inventors: Martin T Bishop, Stephen E Williams, Michael John Meisinger, Sr.
  • Patent number: 11789060
    Abstract: A grounded socket and a method for insulation fault location in an ungrounded power supply system including insulation monitoring by a standard insulation monitoring device superimposing a measuring voltage on the ungrounded power supply system for determining an insulation resistance of the ungrounded power supply system. The grounded socket includes a housing having electrical contacts, a signaling device for signaling an insulation state, and a current measuring device for detecting and evaluating a differential current, the current measuring device having a measuring current transformer and evaluating electronics, and the current measuring device being configured for high-resolution detection and evaluation of a measuring current driven by the measuring voltage as a differential measuring current.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: October 17, 2023
    Assignee: BENDER GMBH & CO. KG
    Inventors: Pascal Becker, Karl Schepp
  • Patent number: 11789091
    Abstract: A fan fault detection device includes: a plurality of sub-modules; and a master module to configured to determine faults of a plurality of fans, wherein each of the plurality of sub-modules includes: a first input terminal for receiving a detection signal indicating whether a corresponding fan is defective; a second input terminal; an output terminal; a switching circuit connected between the output terminal and a first power source for supplying a voltage signal corresponding to a state signal and, the switching circuit configured to switch an output of the state signal through the output terminal according to the detection signal; and a first signal transmission circuit connected between the first input terminal and the switching circuit, the first signal transmission circuit configured to transmit the detection signal to the switching circuit according to a signal received by the second input terminal.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Suk Ki Kim, Hyungho Kim, Jeonghyup Ko
  • Patent number: 11757284
    Abstract: A method for attenuating low-frequency oscillations in an electrical power supply grid by means of a feed device which feeds into the electrical power supply grid, in particular a wind power installation, wherein the electrical power supply grid has a grid voltage and a grid frequency, comprising the following steps: picking up a grid signal having the low-frequency oscillations, splitting a total frequency range of the grid signal in which oscillations to be attenuated are to be expected into a plurality of partial frequency ranges, each having a lower and an upper range frequency, performing in each case one frequency analysis of the grid signal for each partial frequency range in order to identify in each case one or more oscillations having an oscillation frequency in the partial frequency range, if present, identifying a low-frequency oscillation to be attenuated as target oscillation depending on the frequency analyses of all of the partial frequency ranges, detecting the target oscillation at least acc
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: September 12, 2023
    Assignee: Wobben Properties GmbH
    Inventors: Kai Busker, Kaveh Malekian Boroujeni
  • Patent number: 11714111
    Abstract: An electric circuit according to an embodiment of the present disclosure includes only a single amperemeter configured to measure either a positive current or a negative current through a respective measurement resistance between a respective high voltage potential and a common ground potential. The respective actual measurement resistance value of the unmeasured measurement resistance is calculated by applying a respectively calculated actual measurement resistance value of the respective measured measurement resistance, a calculated actual positive isolation resistance value, and a calculated negative isolation resistance value.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: August 1, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jürgen Fritz, Peter Kurcik, Harald Reiter
  • Patent number: 11698404
    Abstract: A universal switching platform is configured to test a device under test, and includes a first power source, a first switch, a second switch and a second power source. The first switch, the second switch and the second power source are coupled in series between positive and negative terminals of the first power source. The common node of the first and second switches and the negative terminal of the first power source are configured to be respectively coupled to first and second terminals of the device under test. The universal switching platform provides a voltage and a current to test the device under test when the first and second switches are controlled to transition between conduction and non-conduction.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: July 11, 2023
    Assignee: Device Dynamics Lab Co., Ltd.
    Inventor: Ming-Cheng Lin
  • Patent number: 11693029
    Abstract: Evaluation board (EVB) assemblies or stacks utilized in tuning electronic modules are disclosed, as are methods for tuning such modules. In embodiments, the module testing assembly includes an EVB and an EVB baseplate. The EVB includes, in turn, an EVB through-port extending from a first EVB side to a second, opposing EVB side; and a module mount region on the first EVB side and extending about a periphery of the EVB through-port. The module mount region is shaped and sized to accommodate installation of a sample electronic module provided in a partially-completed, pre-encapsulated state fabricated in accordance with a separate thermal path electronic module design. A baseplate through-port combines with the EVB through-port to form a tuning access tunnel providing physical access to circuit components of the sample electronic module through the EVB baseplate from the second EVB side when the sample electronic module is installed on the module mount region.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: July 4, 2023
    Assignee: NXP USA, Inc.
    Inventors: Joshua Bennett English, Lu Wang
  • Patent number: 11668752
    Abstract: Implementations of ground fault circuit interrupter (GFCI) self-test circuits may include: a current transformer coupled to a controller, a silicon controlled rectifier (SCR) test loop coupled to the controller, a ground fault test loop coupled to the controller, and a solenoid coupled to the controller. The SCR test loop may be configured to conduct an SCR self-test during a first half wave portion of a phase and the ground fault test loop may be configured to conduct a ground fault self-test during a second half wave portion of a phase. An SCR may be configured to activate the solenoid to deny power to a load upon one of the SCR self-test or the ground fault self-test being identified as failing.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: June 6, 2023
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Bruce G. Armstrong, Rishi Pratap Singh, Sanath Kumar Kondur Surya Kumar, Riley Beck
  • Patent number: 11639961
    Abstract: A first circuit outputs a third signal having a first level during a period over which first and second signals have the same level, and having a second level during a period over which the first and second signals have different levels. A second circuit outputs a fifth signal having the first level during a period over which a fourth signal having the same level as the third signal has the same level as the first signal, and having the second level during a period over which the first and fourth signals have different levels. A third circuit outputs a sixth signal having a third level during a period over which the second and fifth signals have the same level, and having a fourth level during a period over which the second and fifth signals have different levels.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: May 2, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventor: Kenji Suina
  • Patent number: 11567123
    Abstract: A wafer inspection system is provided. The wafer inspection system comprises: a transfer region in which a transfer device is arranged; an inspection region in which test heads for inspecting a substrate are arranged; and a maintenance region in which the test heads are maintained. The inspection region is located between the transfer region and the maintenance region, a plurality of inspection rooms accommodating the test heads are adjacent to each other in the inspection region, and the test heads are configured to be unloaded from the inspection region to the maintenance region.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: January 31, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Junichi Hagihara, Shigekazu Komatsu, Kunihiro Furuya, Tadayoshi Hosaka, Naoki Muramatsu
  • Patent number: 11529120
    Abstract: An ultrasound device (10) is disclosed comprising a transducer arrangement (110) and an acoustically transmissive window (150) over said arrangement, said window comprising an elastomer layer (153) having conductive particles dispersed in the elastomer, the elastomer layer having a pressure-sensitive conductivity, the ultrasound device further comprising an electrode arrangement (160) coupled to said elastomer layer and adapted to measure said pressure-sensitive conductivity. An ultrasound system and arrangement including such an ultrasound device are also disclosed.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: December 20, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Harm Jan Willem Belt, Franciscus Johannes Gerardus Hakkens, Godefridus Antonius Harks, Gerardus Henricus Maria Gijsbers, Kevin Grayson Wickline, Lucas Johannes Anna Maria Beckers
  • Patent number: 11486421
    Abstract: Hydraulically-amplified, self-healing, electrostatic transducers that harness electrostatic and hydraulic forces to achieve various actuation modes. Electrostatic forces between electrode pairs of the transducers generated upon application of a voltage to the electrode pairs draws the electrodes in each pair towards each other to displace a liquid dielectric contained within an enclosed internal cavity of the transducers to drive actuation in various manners. The electrodes and the liquid dielectric form a self-healing capacitor whereby the liquid dielectric automatically fills breaches in the liquid dielectric resulting from dielectric breakdown. Due to the resting shape of the cavity, a zipping-mechanism allows for selectively actuating the electrodes to a desired extent by controlling the voltage supplied.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 1, 2022
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Christoph Matthias Keplinger, Eric Lucas Acome, Nicholas Alexander Kellaris, Shane Karl Mitchell, Timothy G. Morrissey
  • Patent number: 11374561
    Abstract: An integrated circuit includes a first circuit having a loopback path electrically coupled to an inverter and a test circuit having a controller and a counter. The test circuit is electrically coupled to the first circuit, and the controller is configured to select the loopback path. The first circuit is configured to receive a first voltage signal and to generate an oscillating signal from the received first voltage signal. The first voltage signal is either a substantially low logic level signal or a substantially high logic level signal. The counter is configured to count oscillations of the oscillating signal.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: June 28, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Jinn-Yeh Chien
  • Patent number: 11360139
    Abstract: A method for testing a power module includes connecting an output capacitor of the power module to a load meter; inputting an input signal, an enable signal, a PowerGood signal, and an output signal of the power module to first, second, third, and fourth channels of an oscillometer, respectively; adjusting the load meter to a no-load state, and capturing and storing the power-on waveforms and power-off waveforms of four channels of signals of the power module; adjusting the load meter to a full-load state, and capturing and storing the power-on waveforms and power-off waveforms of the four channels of signals of the power module; and determining whether the power-on sequence, power-off sequence, overshoot voltage value, and undershoot voltage value of the power module are normal based on the power-on waveforms and power-off waveforms of the four channels of signals stored by the load meter under the no-load and full-load states.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 14, 2022
    Assignee: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.
    Inventor: Xin Sui
  • Patent number: 11231468
    Abstract: Inspection apparatus is provided for inspecting a first electronic device and a second electronic device. The inspection apparatus includes a first signal transfer unit, a second signal transfer unit, a first signal output unit and a second signal output unit. The first signal transfer unit is adapted to receive a first input signal. The second signal transfer unit is adapted to receive a second input signal. The first signal output unit is selectively coupled to the first signal transfer unit or the second signal transfer unit to output a first output signal to inspect the first electronic device. The second signal output unit is selectively coupled to the first signal transfer unit or the second signal transfer unit to output a second output signal to inspect the second electronic device. The inspection apparatus can realize automatic inspection.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: January 25, 2022
    Assignee: WISTRON CORP.
    Inventors: Chung Kai Han, Yu Shan Huang, Po-Chuan Ku, Chun Yen Tsai
  • Patent number: 11184691
    Abstract: The invention concerns a method for reshaping a electrical raw input signal to a formatted electrical signal and a gateway adapted to receive a range of wireless and wired sensory input, which are processed and packaged and then delivered to a remote data storage facility by use of a cellular network and an on board cellular device, wherein the gateway comprises a signal formatting circuitry and programmable signal processing device where the signal formatting circuitry is adapted to receive an electrical raw input signal and comprise means to reshape the raw input signal to a formatted electrical input signal according to input requirements of a signal processing device.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: November 23, 2021
    Assignee: AMI GLOBAL
    Inventors: Omer Zeharhary, Ori Peled
  • Patent number: 11177654
    Abstract: Examples described herein provide a circuit and methods for self-testing to detect damage to a device, which damage may be caused by an Electro-Static Discharge (ESD) event. In an example, an integrated circuit includes an input/output circuit, an ESD protection circuit, and a system monitor. The input/output circuit has an input/output node. The ESD protection circuit is connected to the input/output node. The system monitor has a driving/measurement node selectively connectable to the input/output node. The system monitor is configured to drive and measure a voltage of the driving/measurement node. The system monitor is further configured to determine, based on driving and measuring the voltage of the driving/measurement node, whether a damaged device is present. The damaged device is in the input/output circuit or the ESD protection circuit.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: November 16, 2021
    Assignee: XILINX, INC.
    Inventors: John K. Jennings, James Karp, Michael J. Hart
  • Patent number: 11177756
    Abstract: An electric motor drive device includes a wire-connected-state switching unit to switch a wire connected state of stator windings of an electric motor to either a delta connected state or a star connected state, an inverter to drive the electric motor, and a relay-voltage detection circuit to detect a relay voltage (VR) that is a power-supply voltage of the wire-connected-state switching unit, and to deactivate the inverter when the relay voltage (VR) is decreased below a threshold.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: November 16, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shun Miyamori, Shinichiro Ura, Keiichiro Shizu
  • Patent number: 11112626
    Abstract: A switchable optical element and method for detecting breakage of a substrate (A, B) of at least one switchable optical element (10) having a first substrate (A) and a second substrate (B), the first substrate (A) being coated with a first electrode and the second substrate (B) being coated with a second electrode, and a switchable layer (14), the switchable layer (14) being sandwiched between the first substrate (A) and second substrate (B), the first electrode and second electrode each having at least one contact, by i) measuring a change in a differential signal measured at two contacts of a substrate (A, B), ii) measuring a change in capacitance between the two substrates (A, B), iii) measuring a change in resistance of at least one of the substrates (A, B), iv) measuring a change in current applied to the switchable optical element (10).
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: September 7, 2021
    Assignee: MERCK PATENT GMBH
    Inventors: Ties De Jong, Paul Bakker
  • Patent number: 11054372
    Abstract: A system for non-destructive testing of an overhead energized electrical component. The system has a base, an X-ray source, an X-ray digital imager, and an imager controller. The system also has a removable electrically conductive flexible shield which is adapted to be operatively coupled to, and to encapsulate, at least the base, the X-ray source, the X-ray digital imager and the imager controller so as to form a shrouded system. In a use position, when the shrouded system is positioned adjacent the energized electrical component so as to non-destructively test the energized electrical component, the shield protects at least the base, the X-ray source, the X-ray digital imager and the imager controller from electric fields around the energized electrical component while allowing signal communication between at least the X-ray source and the energized electrical component.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: July 6, 2021
    Assignee: Quanta Associates, L.P.
    Inventors: James Ronald Hill, Donald Dodds, Jeffrey Victor Rogers, Calvin Edward Stock, Benjamin John William Nesbitt
  • Patent number: 11016148
    Abstract: A tester for a relay comprises an enclosure, a testing circuit that includes a controller, electronic switch components, a power source, indicator LEDs, a test start switch, a relay type switch, and five electric leads each connected with one terminal of the relay. With the relay type switch set to the type of relay being tested, with power supplied to each lead, and with the test start switch actuated, the controller can set each lead to ground, in turn, and then count the number of other leads that are grounded as a result. The controller then illuminates the at least one indicator to indicate either the passing relay test or the failed relay test based on the counts measured. Once the leads connected to the relay coil are identified, cyclic testing of the relay can be performed.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: May 25, 2021
    Inventor: Kevin Mark Curtis
  • Patent number: 10955452
    Abstract: A wire harness conduction inspection method performed by a computer includes determining whether wirings included in two wire harnesses arranged in adjacent divided areas are conducted by a connector that connects the two wire harnesses, based on an actual wiring diagram that describes wirings to drive a certain electrical system mounted on a vehicle, a matrix table that describes specification for a wire harness to identify the electrical system constituting a portion of a circuit, for each wire harness mounted on the vehicle, and a connector diagram that describes a connector, a corresponding relationship between the connector and the wirings, and specification for the connector to identify the electrical system constituting the portion of the circuit.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: March 23, 2021
    Assignee: Yazaki Corporation
    Inventor: Kohta Ohishi
  • Patent number: 10718807
    Abstract: The present disclosure provides a test probe and an apparatus for testing a printed circuit board, wherein the test probe comprises a test pin; and an insulating protection sleeve with adhesive attached therein, wherein the insulating protection sleeve is sleeved on the test pin, and wherein a first end of the test pin protrudes from the insulating protection sleeve.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: July 21, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Kai Wang, Chunyang Nie, Bingbing Yan, Lixin Zhu
  • Patent number: 10677835
    Abstract: An evaluation method for insulation performance includes: a step ? of applying a DC voltage to a first insulator and measuring an integration value of a current flowing through the first insulator from a start of application of the DC voltage after a prescribed time period; a step ? of applying a DC voltage to the second insulator on an applying condition that is identical to that in the step ? and measuring an integration value of a current flowing through the second insulator from a start of application of the DC voltage after a prescribed time period; and a step ? of comparing (i) a first graph obtained in the step ? and (ii) a second graph obtained in the step ?, to evaluate a difference between insulation performances of the insulators.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: June 9, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yoitsu Sekiguchi, Tatsuo Takada, Yasuhiro Tanaka, Masumi Fukuma
  • Patent number: 10656104
    Abstract: A system for non-destructive testing of an overhead energized electrical component. The system has a base, an X-ray source, an X-ray digital imager, and an imager controller. The system also has a removable electrically conductive flexible shield which is adapted to be operatively coupled to, and to encapsulate, at least the base, the X-ray source, the X-ray digital imager and the imager controller so as to form a shrouded system. In a use position, when the shrouded system is positioned adjacent the energized electrical component so as to non-destructively test the energized electrical component, the shield protects at least the base, the X-ray source, the X-ray digital imager and the imager controller from electric fields around the energized electrical component while allowing signal communication between at least the X-ray source and the energized electrical component.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: May 19, 2020
    Assignee: Quanta Associates, L.P.
    Inventors: James Ronald Hill, Donald Dodds, Jeffrey Victor Rogers, Calvin Edward Stock, Benjamin John William Nesbitt
  • Patent number: 10649041
    Abstract: A cable, an associated monitoring system and methods are provided which monitor the continuity of current of electrical components such as sensor signals from sensors used in connection with a medical apparatus. The cable includes a proximal end for coupling with a processing unit and a distal end with or for coupling to sensors. The processing unit generates a continuity signal that travels through the cable via an inductor coil conductor to a distal end inductor coil which imparts the signal to sensor signal conductors of the cable. The continuity signal is carried back to the processing unit with signals from the sensors. Circuitry of the processing unit can detect the returning continuity signals to indicate proper connectivity of the sensor signals. The connection status information of the sensors can be displayed to inform a doctor or other operator of the medical apparatus of sensor signal continuity.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: May 12, 2020
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Yochai Parchak, Eyal Rotman
  • Patent number: 10548033
    Abstract: In one embodiment, a test system comprises: a network access point simulation component configured to simulate network access point operations and to simulate test interactions with user equipment, and a local control component configured to direct the network access point simulation component and to control test interactions with the user equipment. The number of devices under test included in the user equipment and distinct network access points that are coincidentally simulated are variable. In one exemplary implementation, the local control component comprises a test executive operable to direct simulation of communication network operations and the test interactions in accordance with information received from the remote control components. The network access point simulation component and local control component are portable.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: January 28, 2020
    Assignee: w2bi, Inc.
    Inventors: Dinesh Doshi, Mark Elston, Amit Kucheriya, Derek Diperna, Vipul Jain, Liqun Liu, Ira Leventhal
  • Patent number: 10475609
    Abstract: Disconnecting device for a power line, having at least one disconnecting means which is spatially arranged between a first and a second connector when the disconnecting device is in a closed state, the disconnecting means having at least one connecting element forming an electrical connection between the connectors when the disconnecting device is in the closed state, wherein the connecting element is electrically connected to the first connector via a first contact point and to the second connector via a second contact point when the disconnecting device is in the closed state, and wherein the disconnecting means is arranged in such a way that a breakdown voltage between the first and the second connector when the disconnecting device is in an open state is greater than between the first connector and the first contact point of the connecting element and/or between the second connector and the second contact point of the connecting element.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: November 12, 2019
    Assignee: Auto-Kabel Management GmbH
    Inventors: David Cacciatore, Wacim Tazarine, Sohejl Rafati
  • Patent number: 10404416
    Abstract: A method of operating a transmission system (1) having a first network (2) and at least one second network (3), data being exchanged between these at least two networks (2, 3) in that data of the first network (2) is fed to duplication means (4), the inputted data being transmitted wirelessly to separator means (5) via at least two transmission paths (6, 7) using PRP and forwarded from the separator means (5) to the connected second network (3), characterized in that the data is transmitted in the form of data packets, and it is ascertained whether or not a data packet was transmitted, and it is determined based thereon whether or not the transmission system (1) is operating in a fault-free manner.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: September 3, 2019
    Assignee: HIRSCHMANN AUTOMATION AND CONTROL GMBH
    Inventor: Tobias Heer
  • Patent number: 10340911
    Abstract: A method for programming a two-wire sensor having at least two sensor units. The method comprises the following steps of: switching on the at least two sensor units, activating one of the at least two sensor units, capturing operating states of the at least two sensor units; detecting an operating state in which one individual sensor unit is active; and sending a programming command to the detected active sensor unit.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 2, 2019
    Assignee: TDK - Micronas GmbH
    Inventors: Hans-Jörg Fink, Tomas Kauter
  • Patent number: 10234495
    Abstract: The present invention discloses a decision tree SVM fault diagnosis method of a photovoltaic diode-clamped three-level inverter in view of fault diagnosis problems of the photovoltaic three-level inverter in a photovoltaic microgrid. Taking an inverting state for example, firstly, analyzing running conditions of an inverter main circuit and performing fault classification, then taking the middle, upper and lower bridge leg voltages as measurement signals, extracting feature signals with a wavelet multiscale decomposition method, and thereby generating a decision tree SVM fault classification model with a particle swarm clustering algorithm, to finally achieve multi-mode fault diagnosis of the photovoltaic diode-clamped three-level inverter. Advantages of the present invention are that, this algorithm can obviously distinguish various fault states of the photovoltaic diode-clamped three-level inverter, complete the failure diagnostic task with fewer classification models And the diagnosis precision is high.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: March 19, 2019
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Hongfeng Tao, Chaochao Zhou, Yan Liu, Yajun Tong
  • Patent number: 10104560
    Abstract: A machine for testing the parts and functions of a mobile phone includes a supporting mechanism, a platform, a receiving portion, and a detecting mechanism. The supporting mechanism is mounted in a box. The platform is slidably mounted on the supporting mechanism. The receiving portion is used to receive the mobile phone. The receiving portion is rotatably mounted on the platform. Devices within the machine are operated to test the mobile phone. A mobile phone testing system used in the testing machine is also described.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: October 16, 2018
    Assignees: HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Ching Liu, Wei-Da Yang, Po-Lin Su, Jie-Peng Kang, Xue-Rui Deng, Liu-Ming Zhang, Rui Li, Su-Min Li, Yong-Qiang Han, Guang-Xing Wang
  • Patent number: 9658287
    Abstract: A handler apparatus adjusts a position of an actuator and enhances positional accuracy of a device under test. Provided is a handler apparatus that conveys a device under test to a test socket, including: an actuator that, prior to fitting of a device holder holding the device under test to the test socket, fits the device holder, and adjusts a position of the device under test on the device holder; and an actuator adjusting section that adjusts an amount of driving of the actuator by causing the actuator to fit an actuator fitting unit.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 23, 2017
    Assignee: ADVANTEST CORPORATION
    Inventors: Tsuyoshi Yamashita, Mitsunori Aizawa, Hiromitsu Horino, Yuya Yamada, Masataka Onozawa
  • Patent number: 9553622
    Abstract: According to an embodiment, a reception circuit is configured to receive a reception signal from a transmission circuit through a receiving AC coupling element. The transmission circuit transmits a transmission signal through a transmitting AC coupling element. The receiving AC coupling element is AC coupled to the transmitting AC coupling element. The reception circuit includes a variable gain amplifier, a hysteresis circuit and a first control circuit. The variable gain amplifier is configured to amplify the reception signal with a variable gain to output an amplified signal. The hysteresis circuit has hysteresis in an input/output characteristic, and is configured to output an output signal according to the amplified signal. The first control circuit is configured to control the gain so that an amplitude of the amplified signal approximates a reference amplitude.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: January 24, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Shinsuke Fujii
  • Patent number: 9459302
    Abstract: Disclosed is a device under test (DUT) tester using a redriver. The DUT tester more effectively tests the DUT, which is a predetermined semiconductor device, by applying an electrical signal to the DUT and measuring the electrical signal. The DUT tester includes a DUT test unit, a printed circuit board (PCB) provided therein with connectors for the connection with the DUT test unit, one DUT or more horizontally arranged on the PCB, and redrivers horizontally provided under the PCB and one-to-one matched with one DUT or more to compensate for the distortion of the signal integrity of test signals caused according to the variation of the transmission distance.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: October 4, 2016
    Assignee: UNITEST INC
    Inventor: Jin An Oh
  • Patent number: 9442163
    Abstract: Methods and systems for compensating for temperature variation in the performance of electronic circuits and systems are disclosed. In some embodiments, the systems are configured to store compensation parameters determined in calibration, where the compensation parameters are used by the systems to modify performance. In some embodiments, the systems are part of an automatic test equipment (ATE) system.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: September 13, 2016
    Assignee: Analog Test Engines
    Inventor: Jeffrey Allen King
  • Patent number: 9423461
    Abstract: Methods and systems for compensating for temperature variation in the performance of electronic circuits and systems are disclosed. In some embodiments, the systems are configured to store compensation parameters determined in calibration, where the compensation parameters are used by the systems to modify performance. In some embodiments, the systems are part of an automatic test equipment (ATE) system.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: August 23, 2016
    Assignee: Analog Test Engines
    Inventor: Jeffrey Allen King
  • Patent number: 9418251
    Abstract: A mesh grid protection system is provided. The system includes assertion logic configured to transmit a first set of signals on a first set of grid lines and a second set of grid lines. The system also includes transformation logic to transform the first set of signals to generate a second set of signals, to transmit the second set of signals on a third set of grid lines that are coupled to the first set of grid lines, and to transmit the second set of signals on a fourth set of grid lines that are coupled to the second set of grid lines. In addition, the system includes verification logic to compare the second set of signals on the third and fourth set of grid lines to an expected set of signals.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: August 16, 2016
    Assignee: Broadcom Corporation
    Inventors: Kambiz Rahimi, Mark Buer, Rolando Ogot
  • Publication number: 20150145525
    Abstract: Disclosed is an overcurrent simulation method when a nail penetrates a secondary battery and a recording medium storing the program. The overcurrent simulation method according to the present disclosure constructs a safety device and a secondary battery equivalent circuit, and produces a nail penetration effect by changing a resistance value. In this instance, various current simulations may be obtained by changing a first metal sheet and a second metal sheet included in the safety device, and a resistance value limiting an overcurrent may be calculated.
    Type: Application
    Filed: October 28, 2014
    Publication date: May 28, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Se-Wook SEO, Dal-Mo KANG, Seung-Hun JUNG