Patents Issued in August 3, 2017
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Publication number: 20170219626Abstract: Aspects of the present disclosure provide a gimbal assembly test system including: a protective cover affixed to a test surface of a wafer probe card mounted within a gimbal bearing, wherein the protective cover includes an exterior surface oriented outward from the test surface of the wafer probe card; and a recess extending into the exterior surface of the protective cover and shaped to matingly engage a load cell tip therein.Type: ApplicationFiled: February 3, 2016Publication date: August 3, 2017Inventors: David L. Gardell, David M. Audette, Peter W. Neff
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Publication number: 20170219627Abstract: Methods and apparatus for testing unsingulated integrated circuits on a wafer include adapting a wafer prober for use with a full-wafer contactor disposed on the wafer. Some embodiments include placing a wafer on a chuck of the prober, aligning the wafer to a full-wafer contactor incorporated in the wafer prober, removably attaching the wafer to the full wafer contactor, separating the wafer from the chuck, and making electrical contact to one or more integrated circuits of the wafer by making physical contact with a surface of the full-wafer contactor that faces away from the wafer.Type: ApplicationFiled: February 15, 2017Publication date: August 3, 2017Applicant: Translarity, Inc.Inventor: Morgan T. Johnson
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Publication number: 20170219628Abstract: A probe insertion auxiliary and a method of probe insertion are provided. A light source illuminates holes on a lower die to make the position of the holes clear for an operator. The probe insertion auxiliary includes a bottom and a clamp pair disposed on the bottom. The clamp pair has two clamp parts. The two clamp parts define a slit for disposing a probe chassis. Furthermore, the two clamp parts and the bottom form a space. A light source is disposed inside the space for illuminating the holes.Type: ApplicationFiled: April 12, 2017Publication date: August 3, 2017Inventors: Tung-Chung Hsu, Yong-Feng Lin
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Publication number: 20170219629Abstract: A wafer testing system and associated methods of use and manufacture are disclosed herein. In one embodiment, the wafer test system includes an interposer having a first surface and a second surface facing away from the first surface. The system also includes a wafer translator having a first side facing the second surface of the interposer and a second side facing away from the first side and toward a wafer, the first side carrying a plurality of first terminals at a first scale and the second side carrying a plurality of second terminals at a second scale. The first scale is greater than the second scale.Type: ApplicationFiled: February 15, 2017Publication date: August 3, 2017Applicant: Translarity, Inc.Inventors: Aaron Durbin, David Keith, Morgan Johnson
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Publication number: 20170219630Abstract: Provided herein are electric and magnetic field probes for measuring and mapping distributions of such fields on, for example, circuits, antennas and materials.Type: ApplicationFiled: February 2, 2017Publication date: August 3, 2017Inventor: Daniel Warren van der Weide
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Publication number: 20170219631Abstract: A system and method for disassembling a multiple contact probe head including a plurality of contact probes positioned by a first die at a first end of the plurality of probes and a second die at a second end of the plurality of probes, are provided. The system may include a manifold configured to sealingly receive an opposing side of the first die from the second die; and a vacuum source operatively coupled to the manifold to apply a vacuum to an interior of the manifold applying a force to the plurality of contact probes in position in the first die across. Where the probes include a paramagnetic material, a magnetic source may be employed to hold the probes during disassembly.Type: ApplicationFiled: February 2, 2016Publication date: August 3, 2017Inventors: Marvin G. L. Montaque, Stephen P. Ayotte, David L. Gardell
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Publication number: 20170219632Abstract: Electrical current transducer (2) of a closed-loop type for measuring a primary current (Ip) flowing in a primary conductor (1), comprising a fluxgate measuring head (7) and an electronic circuit (16) including a microprocessor (18) for digital signal processing. The measuring head includes a secondary coil (6) and a fluxgate detector (4) comprising an excitation coil and a magnetic material core. The electronic circuit comprises an excitation coil drive circuit (14) configured to generate an alternating excitation voltage to supply the excitation coil with an alternating excitation current (Ifx), the secondary coil (6) connected in a feedback loop (12) of the electronic circuit to the excitation coil drive circuit (14), the electronic circuit further comprising a ripple compensation circuit (26, 28) configured to compensate for a ripple signal generated by the alternating excitation voltage.Type: ApplicationFiled: July 20, 2015Publication date: August 3, 2017Applicant: LEM INTELLECTUAL PROPERTY SAInventors: Wolfram TEPPAN, Davide AZZONI
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Publication number: 20170219633Abstract: A sensor includes a core, first and second windings, an integrating amplifier circuit and a DC stabilization circuit. The first and second windings are wrapped around the core. The integrating amplifier circuit has a first input coupled to receive a sensed current from the first winding, and an output operably coupled to provide a current the second winding. The integrating amplifier circuit is configured to generate a phase shift from an input current received at the first input and the current provided to the second winding. The DC stabilization circuit includes a first resistive path coupled between the output of the integrating amplifier circuit and the first input of the integrating amplifier circuit, and a second resistive path coupled between the first winding and the first input of the integrating amplifier circuit.Type: ApplicationFiled: April 11, 2017Publication date: August 3, 2017Inventors: Frank J. Boudreau, Matthew E. Kraus
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Publication number: 20170219634Abstract: A current sensor includes a primary conductor in which a current to be measured flows, at least one magnetic sensor that detects a strength of a magnetic field produced by the current flowing in the primary conductor, and a magnetic body that surrounds a periphery of the primary conductor and the magnetic sensor. Output characteristics of the magnetic sensor include a low-output region in which a measured voltage value lower than a virtual output voltage proportional to a value of the current is outputted. Magnetization characteristics of the magnetic body include a magnetic saturation region in which permeability decreases in ranges where an absolute value of the current is no less than a threshold. An output of the magnetic sensor is corrected such that the measured voltage value increases as a result of a magnetic field leaking from the magnetic body that is within the magnetic saturation region acting on the magnetic sensor that is in the low-output region.Type: ApplicationFiled: April 18, 2017Publication date: August 3, 2017Inventors: Yasuhiro SHIMIZU, Takashi KAWANAMI
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Publication number: 20170219635Abstract: Methods and devices for detecting USB devices attached to a USB charging port including a USB port having a first data line D+, a second data line D?, and a power line are disclosed. A USB device is attached to the USB port; applying power to the USB device by the power line; applying a first voltage to the line D+ at the USB port by a first impedance; applying a second voltage to the line D? at the USB port by a second impedance. The voltages on the line D+ and the line D? are then monitored at the USB port. If the voltage on the line D+ is approximately equal to a first predetermined value for a predetermined period and the voltage on the line D? is below a second predetermined value, then the USB device is determined to be of an alpha type device.Type: ApplicationFiled: February 13, 2017Publication date: August 3, 2017Inventor: Jean Picard
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Publication number: 20170219636Abstract: A fast algorithm is used to study the transient behavior due to the step-like pulse. This algorithm consists of two parts: The algorithm I reduces the computational complexity to T0N3 for large systems as long as T<N; The algorithm II employs the fast multipole technique and achieves scaling T0N3whenever T<N2 beyond which it becomes T log2 N for even longer time. Hence it is of order O(1) if T<N2. Benchmark calculation has been done on graphene nanoribbons with N=104 and T=108. This new algorithm allows many large scale transient problems to be solved, including magnetic tunneling junctions and ferroelectric tunneling junctions that could not be achieved before.Type: ApplicationFiled: February 3, 2017Publication date: August 3, 2017Inventors: Jian WANG, King Tai CHEUNG, Bin Fu, Zhizhou Yu
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Publication number: 20170219637Abstract: The operation of electrical appliances receiving electrical power from an electrical system may be indirectly monitored using monitoring units engaged with outlets on branch circuits of the electrical system. Electrical systems providing power to appliances to be monitored in accordance with the present invention may comprise split phase alternating current systems, tri-phase systems, or any other type of electrical system. Known loads may be applied to calibrate the monitoring system. The monitoring system may measure the power consumption of appliances operating on the electrical system and/or detect possible fault conditions. The application of a known load to each phase of the electrical system for calibration permits different portions of the electrical system to be isolated and, therefor, provides improved accuracy in monitoring power consumption and detection of potential fault conditions.Type: ApplicationFiled: April 17, 2017Publication date: August 3, 2017Inventors: Ronald Byron Kabler, Robert Leon Lutes, Alain Charles Briancon, Curtis Scott Crawford, Christopher Allen Giacoponello, Jerald Frederic Johnson, Victor Andres Jara-Olivares, Marc Anthony Epard, Steven Jeffrey Goldberg, John Berns Lancaster
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Publication number: 20170219638Abstract: Power loss is calculated in an inductive power transfer system comprising a power transmitter for transmitting power inductively to a power receiver via transmitter coil and receiver coil. The power transmitter obtains time information for time alignment to enable the power transmitter to align the time of calculating the power loss with the power receiver. Power loss is calculated during power transfer according to the obtained time information and received power parameter communicated from the power receiver.Type: ApplicationFiled: April 11, 2017Publication date: August 3, 2017Applicant: KONINKLIJKE PHILIPS N.V.Inventor: ANDRIES VAN WAGENINGEN
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Publication number: 20170219639Abstract: A method detects an error in a meter having a current transformer, a burden resistor unit and a resistive path switchably connectable across the burden resistor unit. The method includes obtaining in the processing circuit a first value representative of the voltage magnitude across the burden resistor unit while the resistive path is operably decoupled across the burden resistor unit. The method also includes closing a switching element to operably couple the resistive path across the burden resistor unit, and obtaining in a processing circuit a second value representative of a voltage magnitude across the burden resistor unit. The method further includes determining in the processing circuit whether an error exists based on the first value, the second value, and at least one predetermined stored value.Type: ApplicationFiled: January 30, 2017Publication date: August 3, 2017Inventors: Frank J. Boudreau, Matthew E. Kraus, Detlef Griessman
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Publication number: 20170219640Abstract: An apparatus for determining a measure of the frequency of an electrical signal is provided. The apparatus is configured to, based on a plurality of samples of the electrical signal, determine a Hilbert transformation to obtain a value for each of the samples of the electrical signal for use as an imaginary representation of each of the samples of the electrical signal and combine each said imaginary representation with a corresponding real representation of the samples of the electrical signal to form a complex representation of the electrical signal; perform a Fourier transform on each said complex representation of the samples of the electrical signal and determine a phase angle therefrom; and determine a measure of the frequency of the electrical signal based on a derivative of the phase angle with respect to time.Type: ApplicationFiled: January 20, 2017Publication date: August 3, 2017Inventors: Hengxu HA, Sankara Subramanian SRI GOPALA KRISHNA MURTHI, Xianwu ZENG
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Publication number: 20170219641Abstract: An alternating current (AC) to direct current (DC) power converter may have a connector with a pair of power supply contacts and a pair of data contacts. An electronic device may be connected to the connector of the power converter. The power converter may supply DC power to the electronic device using the power supply contacts. The power converter may include control circuitry that has a resistor coupled across the data contacts. When the electronic device and the power converter are connected to each other, each may advertise to the other that capabilities are present that exceed industry standards. At the same time, standard-compliant discovery operations may be performed to probe the value of the resistance of the resistor that is coupled across the data contacts. When extended capabilities are discovered, extended functions may be performed including accelerated charging functions and data communications functions.Type: ApplicationFiled: April 17, 2017Publication date: August 3, 2017Inventors: Nicholas A. Sims, Jeffrey J. Terlizzi, Alexei Kosut, Timothy Johnson, Barry Corlett
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Publication number: 20170219642Abstract: An arrangement includes a plurality of peripheral units and with a sensor, each of the plurality of peripheral units being provided with a connection for connecting the sensor to a supply voltage, includes a sensor input for connecting the sensor, and also includes a measuring resistor for acquiring a sensor current that represents a signal state, where a redundant acquisition and evaluation of the sensor current or a redundant operation of the sensor is permitted on the plurality of peripheral units via suitable measures.Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Inventors: Willi MAIER, Norbert ROTTMANN
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Publication number: 20170219643Abstract: A semiconductor system may include a first semiconductor device configured to output a clock, receive and output data, and detect a jitter of a transmission path according to a level combination of a plurality of monitoring signals. The semiconductor system may also include a second semiconductor device configured to generate the plurality of monitoring signals of which the level combination is changed according to phase differences between an internal clock generated through the transmission path for transmitting the clock and a plurality of divided clocks obtained by dividing the frequency of the clock.Type: ApplicationFiled: May 3, 2016Publication date: August 3, 2017Inventor: Kwan Dong KIM
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Publication number: 20170219644Abstract: The present invention discloses a test platform for high-frequency cable, comprising conductive contacts and clamps for pressing a conductor of the cable on the conductive contact, and comprising a splitter seat, which comprises a top surface and a plurality of varied sides, the conductive contacts are respectively arranged on the sides, the clamps are arranged at a peripheral of the splitter seat and is opposite to the conductive contact, the splitter seat is further provided with a splitter channel, and the splitter channel slantingly connects the top surface to the sides. The present invention adopts a splitter seat with a polyhedral structure, which may shorten the stripped length, and prevent for vertically bending the core, thereby reducing the damage to the cable structure to the greatest extent, and greatly increasing the test frequency.Type: ApplicationFiled: December 31, 2014Publication date: August 3, 2017Applicants: SHANGHAI ELECTRIC CABLE RESEARCH INSTITUTE, SHANGHAI SECRI OPTICAL & ELECTRIC CABLE CO., LTD.Inventors: CHENG ZHANG, BIN JIANG, NALLIAN SHEN, JIANGJIANG GONG, YING YIN
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Publication number: 20170219645Abstract: An integrated circuit is configured to detect current leakage that results from electromigration in the integrated circuit. An isolation power switch selectively connects a target voltage rail in the integrated circuit to a power source. A voltage memory stores a record of an initial voltage decay rate for the target voltage rail while isolated from a manufacturer's power source. A voltage record comparator logic compares the initial voltage decay rate to a field voltage decay rate for the target voltage rail when isolated from a field power source. An output device indicates that a difference between the initial voltage decay rate and the field voltage decay rate for the target voltage rail exceeds a predefined limit, where the difference is a result of current leakage caused by electromigration in the integrated circuit.Type: ApplicationFiled: January 28, 2016Publication date: August 3, 2017Inventors: David D. Cadigan, William V. Huott, Adam J. McPadden, Anuwat Saetow, Gary A. Tressler
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Publication number: 20170219646Abstract: An electronic-component testing device capable of achieving efficient heat-releasing from a self-heating electronic component and efficiently performing a desired test while maintaining the temperature of the electronic component in a predetermined range higher than ordinary temperature.Type: ApplicationFiled: April 13, 2017Publication date: August 3, 2017Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Masakazu ITAKURA, Tetsuo KAWASAKI
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Publication number: 20170219647Abstract: Disclosed are a method and a device for detecting a short circuit between adjacent micro-bumps. The method includes setting outputs of a pull-up driver and a pull-down driver of a data output circuit connected with a micro-bump to be suitable for a test type and determining whether a short circuit is generated.Type: ApplicationFiled: October 17, 2016Publication date: August 3, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Won-Joo YUN, Sukyong KANG, Hye-Seung YU, Hyunui LEE
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Publication number: 20170219648Abstract: A method detects electromigration in a field replaceable unit. An integrated circuit, which is within a field replaceable unit (FRU) in an electronic device, is quiescented. An isolation power switch applies a test voltage from a field power source to a target voltage rail in the integrated circuit. An isolation power switch isolates the target voltage rail from the field power source. A voltage sensor coupled to the target voltage rail measures a field voltage decay rate for the target voltage rail. A voltage record comparator logic within the integrated circuit compares the field voltage decay rate to an initial voltage decay rate for the target voltage rail. In response to a difference between the field voltage decay rate and the initial voltage decay rate for the target voltage rail exceeding a predetermined limit, a signal is sent to an output device.Type: ApplicationFiled: February 26, 2016Publication date: August 3, 2017Inventors: David D. Cadigan, William V. Huott, Adam J. McPadden, Anuwat Saetow, Gary A. Tressler
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Publication number: 20170219649Abstract: A process corner detection circuit based on a self-timing oscillation ring comprises a reset circuit (1), the self-timing oscillation ring (2), and a counting module (3). The self-timing oscillation ring (2) consists of m two-input Miller units and inverters, and a two-input AND gate, m being a positive integer greater than or equal to 3. The circuit can be used for detecting a process corner of a fabricated integrated circuit chip, and reflecting the process corner of the chip according to the number of oscillations of the self-timing oscillation ring (2). The number of oscillations of the self-timing oscillation ring (2) in different process corners is acquired by Hspice simulation before the chip tape-out, and the process corner of the chip after the chip tape-out can be determined according to the actually measured number of oscillations.Type: ApplicationFiled: December 26, 2014Publication date: August 3, 2017Inventors: Weiwei Shan, Longxing Shi, Jun Yang
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Publication number: 20170219650Abstract: A method for compensating probe misplacement and a probe apparatus are provided. The method is applicable to a probe module which includes a probe and a fixing base. The probe includes a probe body section and a probe tip section. The probe body section is fixed on the fixing base. The method includes: measuring a temperature of a probe body of the probe body section of the probe; calculating, according to the temperature of the probe body, thermal expansion amount of the probe along a length direction of the probe body section; calculating a compensation value according to the thermal expansion amount; moving the probe or a to-be-tested element according to the calculated compensation value, to align a probe tip of the probe tip section with the to-be-tested element or align the to-be-tested element with the probe tip of the probe tip section.Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Inventors: Chen-Ching Chen, Yu-Hsun Hsu, Po-Yi Ting, Stojan Kanev
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Publication number: 20170219651Abstract: Techniques relate to an interactive logic diagnostic process. A diagnostic iteration loop is performed. When a critical failure does not have the diagnostic resolution that meets a predefined diagnostic resolution, potential faults related to the critical failure are isolated. When the critical failure has a diagnostic resolution that meets the predefined diagnostic resolution, the diagnostic iteration loop ends. Path focused fault test patterns are applied to the device under test in order to generate updated results of the path focused fault test patterns, such that the diagnostic resolution has been increased because a number of the potential faults related to the critical failure has decreased, and/or a size of a physical area of the potential faults related to the critical failure has decreased. The diagnostic iteration loop is returned to.Type: ApplicationFiled: January 29, 2016Publication date: August 3, 2017Inventors: Mary P. Kusko, Gary W. Maier, Franco Motika, Phong T. Tran
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Publication number: 20170219652Abstract: In one embodiment, a multiple input signature register (MISR) shadow works with a MISR to compress test responses of a layout partition in a functional region of an integrated circuit. In operation, for each test pattern in a test pattern split, the MISR generates a MISR signature based on the responses of the layout partition. As the test patterns in the test pattern split execute, the MISR shadow accumulates the MISR signatures and stores the result as MISR shadow data. After the final test pattern included in the test pattern split executes, the MISR shadow combines the bits in the MISR shadow data to form a single bit MISR shadow status that indicates whether the layout partition, and therefore the functional region, responds properly to the test pattern split. By efficiently summarizing the test responses, the MISR shadow optimizes the resources required to identify defective functional regions.Type: ApplicationFiled: February 3, 2016Publication date: August 3, 2017Inventors: Milind SONAWANE, Jonathon E. COLBURN, Amit SANGHANI
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Publication number: 20170219653Abstract: The present invention provides a detecting method and a detecting apparatus for abnormal electrical connection in a main circuit of switchgear, wherein the detecting method comprises: acquiring a plurality of temperature rising values for measured areas of a plurality of electrical connectors in the main circuit of switchgear, the plurality of temperature rising values comprise a temperature rising value at a joint area of at least one of the electrical connectors; calculating a weighted average temperature of the plurality of temperature rising values; dividing each of the plurality of temperature rising values by the weighted average temperature to get normalized temperature rising values for the measured areas of the respective electrical connectors; comparing each of the normalized temperature rising values for the measured areas of the electrical connectors with a corresponding one of normalized threshold values for the measured areas of the respective electrical connectors.Type: ApplicationFiled: July 9, 2015Publication date: August 3, 2017Inventors: FANGJI WU, LI YU, JIONG CHEN, ZUHUI LI
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Publication number: 20170219654Abstract: A method for identifying the existence of a failure of a relay device in an electrical power supply system of a device to be supplied with power, the power supply system comprising at least one power generator configured to generate a power supply signal and a load comprising at least one relay device; the power generator comprising a frequency variator; each relay device comprising a quadripole and at least one antenna linked to the quadripole. The identification method comprises the following steps: a) selecting a characteristic frequency, b) determining the impedance of the load, then when the supply signal has the selected characteristic frequency, c) repeating steps a) and b) for several distinct characteristic frequencies, d) identifying the existence of a failure from several impedances determined for different characteristic frequencies.Type: ApplicationFiled: September 29, 2015Publication date: August 3, 2017Applicant: SAFRAN ELECTRONICS & DEFENSEInventor: Frédéric Bocage
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Publication number: 20170219655Abstract: An object is to conduct an insulation degradation diagnosis with a simple configuration. An insulation diagnostic system includes a current detection sensor 4a that is installed, for a coil 3a of at least one phase of a ? connection type rotating machine in which current flows in the reverse direction at a winding start position and a winding end position, such that the current detection sensor 4a surrounds a current path flowing into a leader line at the winding start of the coil 3a and a current path flowing out from a leader line at the winding end of the coil 3a.Type: ApplicationFiled: September 8, 2014Publication date: August 3, 2017Inventors: Tetsuji KATO, Kohji MAKI
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Publication number: 20170219656Abstract: The preset invention relates to an identification code allocating device for battery management categories, a sequencing device for the battery management categories, and a battery management method using the same and the identification code allocating device includes: a unique identification code allocating unit allocating a unique identification code for a plurality of battery management categories each; a cycle identification code allocating unit allocating a cycle identification code for each of the plurality of battery management categories to correspond to a cycle of each of the plurality of battery management categories; and a dependency identification code allocating unit allocating a dependency identification code for each of the plurality of battery management categories to correspond to dependency relationships among the plurality of battery management categories.Type: ApplicationFiled: August 10, 2015Publication date: August 3, 2017Applicant: LG CHEM, LTD.Inventor: Hahnsang KIM
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Publication number: 20170219657Abstract: A method, battery module, an energy storage device and a power management system is provided. The capacity of the module and energy storage device is determined during current balancing between cells of the module. The capacity is subsequently used to control power to and from the energy storage device to maintain the energy storage device within a predetermined range of the maximum capacity of the energy storage device. The determined capacity is used as a maximum capacity for the energy storage device.Type: ApplicationFiled: January 28, 2016Publication date: August 3, 2017Applicant: BAE SYSTEMS Controls Inc.Inventor: Robert J. Vovos
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Publication number: 20170219658Abstract: A circuit arrangement is for determining the cell voltage of an individual cell in a cell grouping of a series circuit of individual cells of an accumulator pack. Potential points are formed between electrically adjacent individual cells of the series circuit. The potentials of the potential points which follow one another in the series circuit increase in absolute value starting from a reference potential. Each potential point is connected to a measuring input of an evaluation device via a measuring resistor and a switch. In order to measure the cell voltage of an individual cell, the measuring input is connected to the reference potential via a capacitor. The evaluation device registers the charging time of the capacitor to a predefined voltage. On the basis of the registered charging time, the evaluation device determines the cell voltage of the measured individual cell.Type: ApplicationFiled: January 30, 2017Publication date: August 3, 2017Inventors: Martin Schurr, Gernot Liebhard, Christian Heigemeyr, Markus Kulzer
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Publication number: 20170219659Abstract: There is provided a voltage detecting device. A plurality of detecting units are configured to detect voltages of a plurality of battery stacks of a battery pack having the plurality of battery stacks each having a plurality of battery cells connected, at intervals of a predetermined period, respectively. A mode switching unit is configured to perform switching between an active mode in which the detecting units detect the voltages and a standby mode in which the value of an electric current flowing in the detecting units is smaller than a predetermined value. A timing changing unit is configured to change start timings or/and finish timings of the active mode.Type: ApplicationFiled: December 27, 2016Publication date: August 3, 2017Applicant: FUJITSU TEN LIMITEDInventor: Yukio ISHIKAWA
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Publication number: 20170219660Abstract: The invention pertains to a method of determining the State of Health (SoH) and/or State of Charge (SoC) of a rechargeable battery during use of said battery, the method comprising the steps of: generating a first excitation signal within a first selected frequency range, generating a second excitation signal within a second selected frequency range, applying said first and second excitation signals on said rechargeable battery, measuring the response signal for each of said two excitation signals, and then calculate the Electrochemical Impedance (EI) as the ratio between the excitation signals and respective response signals, and then determine the SoH and/or SoC of the rechargeable battery by comparing the calculated EI to a circuit model for the battery and/or determining the SoH and/or SoC of the rechargeable battery by directly evaluating characteristics of the EI. The invention also pertains to a battery management system configured for executing the steps of the method according to the invention.Type: ApplicationFiled: July 17, 2015Publication date: August 3, 2017Applicant: LITHIUM BALANCE A/SInventors: Andreas Elkjaer Christensen, Rasmus Rode Mosbaek
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Publication number: 20170219661Abstract: There is provided a magnetic noise rejection apparatus which includes: a plurality of cancellation coils arranged near a target object; a plurality of magnetic sensors disposed inside the respective cancellation coils; an adder circuit configured to take a sum of outputs of the plurality of magnetic sensors; and a feedback control circuit configured to supply the cancellation coils with such a common feedback drive current that the sum of the outputs of the magnetic sensors is equal to a sum of outputs of the magnetic sensors under a zero magnetic field.Type: ApplicationFiled: December 22, 2016Publication date: August 3, 2017Inventors: Yoshiyuki Hata, Yuji Ogata, Takeshi Tanaka, Toshiaki Hayakawa
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Publication number: 20170219662Abstract: The present disclosure is directed to methods and systems for providing information about a target based on pulse widths. The information can be provided in a formatted output signal which uses a pulse width protocol to code information by varying amplitudes and widths of successive pulses in an output signal pulse train portion. The method includes detecting a first feature of the target and in response to detecting the first feature, generating an output signal pulse train portion comprising two or more pulses with at least two of the pulses having different amplitudes and each of the two or more pulses having a width corresponding to a logic value. The widths of the two or more pulses in the output signal pulse train portion can be measured in response to the detected first feature reaching a first amplitude threshold, whereby the widths can correspond to different logic values.Type: ApplicationFiled: January 29, 2016Publication date: August 3, 2017Applicant: Allegro Microsystems, LLCInventors: Seth Prentice, Andrea Foletto, Marcus Hagn
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Publication number: 20170219663Abstract: A magnetic field sensor comprises a circular vertical Hall (CVH) sensing element having a plurality of vertical Hall elements. A CVH output stage is included comprising one or more of drive circuits to drive the plurality of vertical Hall elements and produce an analog signal representing a strength of an external magnetic field as detected by the plurality of vertical Hall elements. An analog-to-digital converter is coupled to receive the analog signal and produce a digital signal. A quadrature modulator circuit is coupled to the digital signal and operable to generate a plurality of quadrature modulated signals. A processor stage receives signals representative of the plurality of quadrature modulated signals and computes an estimated angle of the external magnetic field.Type: ApplicationFiled: February 1, 2016Publication date: August 3, 2017Applicant: Allegro Microsystems, LLCInventors: Octavio H. Alpago, Ezequiel Alves, Hernán D. Romero
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Publication number: 20170219664Abstract: A magnetic field sensor comprises a circular vertical Hall (CVH) sensing element comprising a plurality of vertical Hall elements, each vertical Hall element comprised of a respective group of vertical Hall element contacts selected from among a plurality of vertical Hall element contacts. A quadrature modulator circuit is coupled to the digital signal and operable to generate a plurality of quadrature modulated signals. A processor stage is coupled to receive the signals representative of the plurality of quadrature modulated signals, and operable to perform a sliding window integration using the signals representative of the plurality of quadrature modulated signals and compute an estimated angle of the external magnetic field using the signals representative of the plurality of quadrature modulated signals.Type: ApplicationFiled: February 1, 2016Publication date: August 3, 2017Applicant: Allegro Microsystems, LLCInventors: Octavio H. Alpago, Ezequiel Alves, Hernán D. Romero
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Publication number: 20170219665Abstract: A magnetic field sensor includes a circular vertical Hall (CVH) sensing element to produce a signal representing an external magnetic field as detected by the CVH sensing element, a sigma-delta analog-to-digital converter to generate a converted signal, modulators to produce quadrature modulated signals from the converted signal, and a processor to produce an estimated angle of the external magnetic field using the quadrature modulated signals. An arctangent function may be used to calculate the estimated angle. A sliding window integration scheme may be used over one or more CVH cycles.Type: ApplicationFiled: February 1, 2016Publication date: August 3, 2017Applicant: Allegro Microsystems, LLCInventors: Octavio H. Alpago, Ezequiel Alves, Hernán D. Romero
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Publication number: 20170219666Abstract: A radio frequency (RF) surface coil and a magnetic resonance device employing the same are disclosed. The disclosed RF surface coil for the magnetic resonance device comprises: a plurality of conductor elements connected in series so as to form a loop-shaped surface coil; and a variable inductance unit provided in at least one of the plurality of conductor elements so as to adjust inductance, wherein the variable inductance unit comprises a conductor bar and a coupler for attachably/detachably coupling the conductor bar to/from at least one of the plurality of conductor elements.Type: ApplicationFiled: August 19, 2014Publication date: August 3, 2017Applicant: Samsung Electronics Co., Ltd.Inventor: Kyoungnam KIM
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Publication number: 20170219667Abstract: A line with a standing wave trap for a magnetic resonance tomograph, and a patient couch and a magnetic resonance tomograph with the line are provided. The line includes a carrier material, a first conductor track that extends along the carrier material in the carrier material or on the carrier material, and a first conductor loop. The first conductor loop is arranged on or in the carrier material. The first conductor loop has a signal coupling to the first conductor track. The first conductor loop has a first interruption that is bridged with a first capacitance.Type: ApplicationFiled: February 1, 2017Publication date: August 3, 2017Inventors: Andreas Fackelmeier, Klaus Huber, Sebastian Martius, Ralph Oppelt, Markus Vester
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Publication number: 20170219668Abstract: A method of manufacturing includes producing a gradient coil assembly having one or more cooling channels for a magnetic resonance imaging system by a process that includes printing a cooling channel template having a first end, a second end, and a hollow passage extending between the first end and the second end, disposing a dielectric material over at least a portion of the cooling channel template to generate a dielectric layer having the cooling channel template, and removing the cooling channel template from the dielectric layer to thereby produce the one or more cooling channels within the dielectric layer such that the one or more cooling channels have a pattern corresponding to a geometry of the cooling channel template.Type: ApplicationFiled: April 13, 2017Publication date: August 3, 2017Inventors: Naveenan Thiagarajan, Eric George Budesheim, Dominic Michael Graziani
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Publication number: 20170219669Abstract: Gradient coils are operated to acquire magnetic resonance (MR) signals encoding a first MRI image over a first region inside a main magnet of the MRI system in which at least a portion of a subject is placed, the first region being located within a volume of uniform magnetic field with inhomogeneity below a defined threshold. An active coil is energized to shift the volume of uniform magnetic field such that a second region inside the main magnet of the MRI system is located within the shifted volume of uniform magnetic field, at least a portion of the second region being located outside of the volume of uniform magnetic field before the volume of uniform magnetic field has been shifted. The gradient coil is operated to acquire MR signals encoding a second MRI image over the second region.Type: ApplicationFiled: July 15, 2015Publication date: August 3, 2017Inventors: Geron André Bindseil, Chad Tyler Harris
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Publication number: 20170219670Abstract: For the creation of a magnetic resonance (MR) image of a predetermined volume section of an object of investigation, MR data of the volume section are collected along radial trajectories, and each trajectory is assigned a readout direction in which the MR data are collected along the respective trajectory. The MR image is reconstructed on the basis of the collected MR data. In the reconstruction, only MR data are taken into consideration that were collected along trajectories with a readout direction restricted to the field of a solid angle that is defined by a partial surface of a sphere. The partial surface (A) at most corresponds to 75% of the total surface of the sphere.Type: ApplicationFiled: January 30, 2017Publication date: August 3, 2017Applicant: Siemens Healthcare GmbHInventors: Christian Geppert, Robert Grimm
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Publication number: 20170219671Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes control circuitry. The control circuitry executes, by a single protocol, acquisition of a distribution of a T1 relaxation time with a first slice as a target, and acquisition of a different kind from the distribution of the T1 relaxation time with a second slice as a target which neither overlaps nor crosses a region of interest of the first slice.Type: ApplicationFiled: December 14, 2016Publication date: August 3, 2017Inventor: Satoshi SUGIURA
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Publication number: 20170219672Abstract: A magnetic resonance imaging method executed in a magnetic resonance imaging apparatus according to an embodiment comprises: applying an inversion pulse; executing a subsequent imaging sequence including an RF (Radio Frequency) pulse and a gradient magnetic field concurrently applied with the RF pulse in a slice direction and performing, for a slice position selected by the RF pulse and the gradient magnetic field and during a time period including a null point, data acquisition in a plurality of orientations including a center of a two-dimensional k-space.Type: ApplicationFiled: January 28, 2016Publication date: August 3, 2017Applicant: Toshiba Medical Systems CorporationInventors: Mitsue MIYAZAKI, Aiming LU, Xiangzhi ZHOU
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Publication number: 20170219673Abstract: A method of operating a magnetic resonance imaging system (10) being connectable to a respiration monitoring means (46) which is configured to provide an output signal (48) whose level represents a respiration state of the subject of interest (20), the method comprising: —a step (54) of providing a prospective acquisition scheme for acquiring magnetic resonance images at each respiration state of a set of selected respiration states of the subject of interest (20), the triggering on the selected respiration states being based on predetermined threshold output signal levels of the respiration monitoring means (46), and, during executing magnetic resonance image acquisition pursuant to the prospective acquisition scheme, a step (58) of comparing actual respiration states at which magnetic resonance images were actually acquired, with the selected respiration states according to the prospective acquisition scheme and predetermined ranges of tolerance (52) of the selected respiration states, —a step (60) of modifType: ApplicationFiled: August 11, 2015Publication date: August 3, 2017Inventors: Tim Nielsen, Sascha Krueger
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Publication number: 20170219674Abstract: A system and method for directing an MRI system to form echo signals from spins in a volume-of-interest (VOI) includes creating an integrated pulse sequence that integrates a volume navigator pulse sequence with an imaging pulse sequence by coordinating a navigator TR with an imaging TR to preserve a steady state of magnetization in the VOI associated with the imaging pulse sequence. The integrated pulse sequence includes performing the imaging pulse sequence to acquire imaging data from the VOI, performing the navigator pulse sequence to acquire navigator data VOI, processing the navigator data to generate motion estimates of motion in the VOI, creating an updated imaging pulse sequence that prospectively corrects for the motion in the VOI using the motion estimates, and repeating these steps using the updated imaging pulse sequence.Type: ApplicationFiled: April 16, 2015Publication date: August 3, 2017Inventors: Andre J.W. VAn Der Kouwe, Matthew D. Tisdale
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Publication number: 20170219675Abstract: Technologies applicable to NMR spin-echo amplitude estimation are disclosed. Example methods may calibrate for distortion of a shape and estimated amplitude of measured NMR spin or gradient echoes. NMR spin or gradient echo measurements may be performed on a sample. The measured NMR spin or gradient echoes may be used to calculate an echo-shape calibration factor. The echo-shape calibration factor may estimate an effect of echo shape on estimated spin or gradient echo amplitude(s) of the NMR spin or gradient echoes. The echo-shape calibration factor may be used to correct for underestimation or overestimation of the spin or gradient echo amplitude(s).Type: ApplicationFiled: December 19, 2016Publication date: August 3, 2017Inventor: DAVID O. WALSH