Patents Examined by Dharti H. Patel
  • Patent number: 10640895
    Abstract: An item such as a fabric-based item or other item may have one or more actuators. An actuator may have a conductive strand of material. A control circuit may supply a current to the conductive strand that induces a length change in the conductive strand due to ohmic heating and associated thermal expansion effects. The control circuit may be used to activate the actuator in response to user input that is supplied to an associated input device such as a switch, capacitive sensor, force sensor, light-based sensor, or other input component. The fabric-based item may include fabric such as woven fabric or knit fabric. Strands of conductive material may serve as signals paths for supplying current to conductive strands in actuators. Magnetic-field-based actuators may be formed by coiling conductive strands around tubular support structures such as piping in fabric-based items.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: John S. Camp, Robert L. Coish, Kyle J. Nekimken, John A. Porcella, Michael A. Damianakis
  • Patent number: 10644495
    Abstract: One example includes a relay device that is comprised of a galvanic isolation barrier, a protection control and power extractor, and an electronic switch. The galvanic isolation barrier is coupled to an input of the relay device and receives a switch control signal and outputs another switch control signal. The protection control and power extractor is coupled to an output of the galvanic isolation barrier. The protection control and power extractor extracts power from a power supply coupled to the relay device. The protection control and power extractor is responsive to the other switch control signal and generates a protection signal in response to a determination of an operating parameter of the relay device. The protection control and power extractor further outputs an electronic switch device signal based on the generated protection signal.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 5, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Barry J. Male, Miroslav Oljaca, David W. Stout, Ajinder Singh
  • Patent number: 10637229
    Abstract: An electronic fuse module for an electrical system of a vehicle includes a housing, an electronic fuse disposed at the housing, a local controller disposed at the housing, and a transceiver disposed at the housing. The electronic fuse module, when the electronic fuse module is in communication with an electronic control unit and a controlled device of the electrical system, communicates with the electronic control unit of the electrical system. The local controller is configured to locally control load limits and a reset policy of the electronic fuse. The local controller is configured to communicate with the electronic control unit via the transceiver to cooperate with a central rule for electrical loads within the electrical system. The local controller is configured to locally control (i) electrical load limits of the electronic fuse and (ii) a reset policy of the electronic fuse.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 28, 2020
    Assignee: MAGNA ELECTRONICS INC.
    Inventor: Joern Ihlenburg
  • Patent number: 10636728
    Abstract: A semiconductor device includes field-effect transistor having a gate, a drain, and a source. A first clamping circuit is connected between the drain and the gate. The first clamping circuit has a first clamp voltage that is lower than a source-to-drain breakdown voltage of the field-effect transistor. A first resistor in the device has a first end connected to a first node between the first clamping circuit and the gate. A second clamping circuit is connected between the drain and a second end of the first resistor. The second clamping circuit has a second clamp voltage is higher than the first clamp voltage and lower than the source-to-drain breakdown voltage.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 28, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji Kikuchi, Ryuta Arai
  • Patent number: 10637232
    Abstract: An internal electric circuit device that is connected to a connector terminal at the time of being short-circuited can be protected, but a load connected to the connector terminal has not been able to be protected. When a voltage of a cathode of a diode becomes a voltage equal to or more that an output voltage of a power source circuit by a short circuit of a positive terminal, an output voltage of an amplifier changes from the output voltage of the power source circuit to a voltage of a point connected to a negative power terminal of the OP amplifier. When the output voltage of the amplifier becomes 0 V, a voltage difference between the gate and the source of a switching element becomes equal to or more than a predetermined voltage. Therefore, the drain and the source of the switching element enter an open state, and the current flowing a negative terminal is blocked. Therefore, it is possible to protect a load from overcurrent.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 28, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Issei Toda, Satoru Shigeta
  • Patent number: 10630070
    Abstract: A device for overcurrent protection, the device may include a main transistor that is configured to supply, via an output node, a load current to a load; a current limiting resistor; a replica transistor that is configured to provide a replica current to the current limiting resistor; wherein the replica current is smaller than the load current, wherein a value of the replica current is responsive to a value of the load current; an amplifier; a current limiting transistor; a variable signal source that is configured to output a reference signal; wherein a value of the reference signal is based on a main transistor voltage; wherein the amplifier is configured to prevent the load current from exceeding a first load current threshold by biasing the main transistor and the replica transistor with a bias signal; wherein a value of the bias signal is responsive to the reference signal and to the replica current.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: April 21, 2020
    Inventors: Alexander Faingersh, Valentin Lerner, Erez Sarig, Raz Reshef
  • Patent number: 10627440
    Abstract: A method for detecting arcs in a DC circuit, having a detection conductor, which is routed at least along a conductor of the DC circuit, which carries an electric voltage and is to be monitored. In this connection, a voltage signal that refers to a potential of the DC circuit is coupled into the detection conductor at an incoupling point via a series resistor, the voltage signal is coupled out again at an outcoupling point of the detection conductor, the voltage signal before the series resistor is compared to the voltage signal at the outcoupling point, and a conclusion is drawn that an arc has occurred when the voltage signal at the outcoupling point deviates from the voltage signal before the series resistor by more than a predetermined amount. This invention also relates to a device for carrying out the method. The method and the device permit a quick, reliable detection of an arc in a DC circuit.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: April 21, 2020
    Inventor: Peter Herges
  • Patent number: 10615590
    Abstract: A symptom of malfunction regarding operating characteristics of a switch should be detected exactly. A switch operating characteristic monitoring device is comprised of a current sensor that measures a close command current of a switch, an auxiliary switch that outputs signals from at least two or more auxiliary contacts with reference to positions of a contactor, a measurement unit that measures signals from the current sensor and the auxiliary switch, a diagnosis unit that judges whether or not a malfunction occurs, and a display unit that displays a malfunction when a malfunction has been determined. A threshold is obtained in advance from multiple results of an opening/closing test performed beforehand. A calculation is made for characteristic times which are obtained from the close command current and signals from the auxiliary switch during actual operation of a circuit breaker. If a deviation is found by comparison with a threshold, a malfunction is determined.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: April 7, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Tatemi, Toshiaki Rokunohe, Makoto Hirose, Hideaki Uchiyama
  • Patent number: 10610761
    Abstract: An athletic performance measuring unit can measure numerous athletic performance parameters for an athlete either during practice or during competition. The measured parameters may be used by the athlete to evaluate the improvement in their performance as well as compare their level of performance against peers. The athletic performance measuring unit can also be configure to transmit the sensed sensor data to a personal processing unit, such as a smart device, for calculation of one or more athletic performance parameters. The calculated athletic performance parameters can be transmitted by the PPU to other electronic devices of those fans interested in following the athletic performance of a particular athlete, group of athletes, and/or team. Further, the athletic performance measuring unit can be configured to be integrated with the display system of an arena or stadium such that the athletic performance parameters can be displayed on the scoreboard of the arena.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: April 7, 2020
    Assignee: Mayfonk Athletic LLC
    Inventors: Martin Matak, Jonathan Mitts
  • Patent number: 10608424
    Abstract: A lamp is provided. The lamp includes at least one light emitting diode (LED) and an electronic circuit configured to provide power to the at least one LED. The lamp includes at least one flat circuit board having mounted thereto the at least one LED and the electronic circuit. The at least one flat circuit board acts as a heatsink to dissipate heat from the at least one LED and acts as a plurality of circuit paths for the electronic circuit and the at least one LED.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: March 31, 2020
    Inventor: Andy Turudic
  • Patent number: 10605575
    Abstract: A two-part self-defense apparatus is disclosed. The apparatus is configured for use with a handheld electronic device such as a cellular phone. A removable protective case configured for installation on the handheld electronic device is one part of the apparatus, and a self-defense module containing a self-defense weapon is the other part. The two parts may be connected to form a unitary working unit, and may be disconnected when the self-defense module is not needed or desired. In a preferred embodiment, the self-defense weapon is a stun gun and the handheld electronic device is a cellular phone.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: March 31, 2020
    Assignee: YELLOW JACKET, LLC
    Inventors: Seth Froom, Trevor Reeves, Sean Simone
  • Patent number: 10598731
    Abstract: A circuit interrupter includes a sensor structured to output a sensor signal, a control unit structured to receive an external control signal, the control unit including: a communication interface structured to receive the external control signal, and a waveform generator structured to generate a waveform equivalent to the sensor signal in response to the external control, and a signal processing circuit structured to receive and process the sensor signal or the generated waveform and to output the processed sensor signal or generated waveform to the control unit.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: March 24, 2020
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Theodore J. Miller, Lothar Jagusch
  • Patent number: 10601216
    Abstract: An analog multiplexer includes a plurality of voltage-protecting transmission gate circuits to select an input voltage signal among different input signals. Each voltage-protecting transmission gate circuit includes a pass gate pFET interconnected between an input pFET and an output pFET, as well as a parallel pass gate nFET. The pFET includes a first source/drain connected in series with the input pFET. A second source/drain is connected in series with the output pFET. A pFET gate receives a gate select signal that operates the transmission gate circuit in a blocking mode, a first passing mode, or a second passing mode. The nFET includes a first nFET source/drain connected to the input pFET to form a main input terminal that receives the input voltage signal. A second nFET source/drain is connected to the output pFET to form a main output terminal that outputs an output voltage based on the operating mode.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 24, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Paul D. Muench, Miguel E. Perez, George E. Smith, III, Michael A. Sperling
  • Patent number: 10601221
    Abstract: An electrostatic protection circuit of a display panel includes a first P-type thin film transistor having a gate connected to a high potential electrostatic output line and a drain connected to a high potential electrostatic output line, a second P-type thin film transistor having a gate connected to a high potential electrostatic output line and a drain connected to a source of the first P-type thin film transistor, and a source connected to the electrostatic signal input line; a first N-type thin film transistor having a gate connected to the low potential electrostatic output line, and a drain connected to the low potential electrostatic output line; a second N-type thin film transistor having a gate connected to the low potential electrostatic output line and a drain connected to the source of the first N-type thin film transistor, and a source connected to the electrostatic signal input line.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: March 24, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Pinquan Xu, Yuanfu Liu
  • Patent number: 10600669
    Abstract: A substrate fixture includes a monopolar chuck main body comprising an insulated plate and an electrode embedded in the insulated plate, a tray placed on the chuck main body, having an upper surface in which a plurality of concave parts for accommodating therein a plurality of substrates is formed, and formed of an insulator having a volume resistivity equal to or lower than a volume resistivity of the insulated plate, and an yttrium oxide layer formed on the upper surface of the tray.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: March 24, 2020
    Assignee: SHINKO ELECTRIC INDUSTRIES CO., LTD.
    Inventor: Norio Shiraiwa
  • Patent number: 10586638
    Abstract: A quench protection apparatus includes a number N of superconducting coils and a heater matrix. The number N of superconducting coils are electrically coupled in series. The heater matrix module includes the number N of heater units. The number N of heater units is electrically coupled in parallel with the number N of superconducting coils respectively. A number M of the heater units each includes at least the number N of heaters. Each superconducting coil is thermally coupled with at least one heater of each of the number M of the heater units. The number of N-M of the heater units each includes at least one heater. Each of the number M of superconducting coils correspondingly coupled with the number M of the heater units is thermally coupled with at least one heater of each of the number N-M of the heater units. A superconducting magnet system protected by above quench protection apparatus is also provided.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: March 10, 2020
    Assignee: General Electric Company
    Inventors: Minfeng Xu, Evangelos Laskaris, Weijun Shen, Jianshe Wang, Anbo Wu, Ye Bai, Yunxing Song
  • Patent number: 10581234
    Abstract: A residual current device (RCD) comprises test circuitry which issues intermittent first test pulses each simulating a residual current fault for which a corresponding fault signal is generated. In the case of a fault in which a corresponding fault signal is not received in respect of a first pulse, the RCD attempts to force the load contacts open. The test circuitry further issues intermittent second test pulses at a frequency less than that of the first test pulses, each second test pulse simulating a residual current for which a corresponding fault signal is generated. The duration of each corresponding fault signal is greater than the response time of the load contacts to allow the load contacts to open. If the test circuitry detects that the load contacts do not open, the RCD attempts to force the load contacts open.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: March 3, 2020
    Assignee: Shakira Limited
    Inventors: Alejandro Marquez, Patrick Ward
  • Patent number: 10573454
    Abstract: In one aspect there is an apparatus. The apparatus may include an electronic circuit that generates a first magnetic field from a current in the electronic circuit. The apparatus may further include a sensing circuit separated from the electronic circuit by a predetermined distance to sense the first magnetic field. A cage circuit may cancel a portion of the first magnetic field at the sensing circuit. The cage circuit may generate a cage current from the current in the electronic circuit and at least one of a phase shift or an amplitude shift applied to the current in the electronic circuit. The cage current may generate a second magnetic field causing cancellation of the portion of the magnetic field from the electronic circuit at the sensing circuit.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: February 25, 2020
    Assignee: Nokia Technologies Oy
    Inventor: Ari Vilander
  • Patent number: 10566780
    Abstract: An electronic circuit for single-event latch-up (SEL) detection and protection of a target integrated circuit (IC) is disclosed. The circuit comprises: a first detector configured for detecting an absolute load current (i) and comparing the absolute load current (i) with a threshold current (ith); a second detector configured for detecting a rate of change of load current (di/dt) and comparing the rate of change of load current (di/dt) with a threshold current change rate (di/dt)th; and a determination module for triggering a power shut-down to the target IC if the absolute load current (i) exceeds the threshold current (ith) and/or the rate of change of load current (di/dt) exceeds the threshold current change rate (di/dt)th.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: February 18, 2020
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Joseph Sylvester Chang, Wei Shu, Jize Jiang
  • Patent number: 10566786
    Abstract: The present invention is concerned with a fault current enhancement for triggering a protection device, such as a fuse or circuit breaker or protection relay used in protecting a distribution line of a power distribution network in an efficient and economical way. An Induction Machine (IM) is operated in parallel with an energy source connected to the distribution line via a Power Electronics (PE) interface, to provide a fault current characteristic of the composite PE interface and IM similar to that of a synchronous generator. Comparable fault currents enable a same protection device to be provided for protecting the distribution line irrespective of a kind of interface used to source energy to the distribution line.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: February 18, 2020
    Assignee: ABB Schweiz AG
    Inventors: Andrew Tuckey, Juergen Zimmerman