Using Resistance Or Conductance Measurement Patents (Class 324/691)
  • Patent number: 11070393
    Abstract: A power delivery apparatus (20) comprises a power source device (22), a power sink device (24) and a data transmission link (26), the power source device (22) connected to one end of the data transmission link (26), the power sink device (24) selectively connectable to another end of the data transmission link (26), the data transmission link (26) configured to permit transmission of data between the power source device (22) and the power sink device (24) when the power sink device (24) is connected to the data transmission link (26), wherein the power source device (22) is configured to apply a periodic sensing voltage to the data transmission link (26), the power delivery apparatus (20) further including a sensing device configured to detect, via the application of the periodic sensing voltage to the data transmission link (26), whether the power sink device (24) is connected to the data transmission link (26), and the power source device (22) is configured so that, in response to the power sink device (24)
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: July 20, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Jun Yan
  • Patent number: 11035889
    Abstract: A measuring sensor, a measuring device, a detection module, a measuring method and a calibration method are disclosed. In an embodiment a measuring sensor includes at least one inductive current transformer configured to generate an electrical measurement signal dependent on a current flow in a conductor passing through the inductive current transformer, a terminal configured to connect the inductive current transformer to a measuring transducer, wherein the inductive current transformer is electrically connected to at least two terminal contacts of the terminal in order to transmit the electrical measuring signal to the measuring transducer and a detection module connected between the inductive current transformer and the two terminal contacts, wherein the detection module is configured to return a response signal when a retrieval signal is applied to the two terminal contacts.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: June 15, 2021
    Assignee: ENERGYBOX LTD.
    Inventors: Dirk Beiner, Tommy Wun, Benson Lo
  • Patent number: 11014784
    Abstract: A method for determining a deterioration state in a suspension member arrangement having a suspension member including a plurality of electrically conductive cords includes the steps of: counting a number of bending cycles applied to the suspension member; measuring an electrical characteristic of the suspension member upon applying an electrical voltage to at least one of the cords; performing at least one of (a) determining a critical deterioration state upon monitoring both the bending cycles number and the electrical characteristic, and (b) determining an unexpected deterioration state based on deriving a current actual deterioration state of the suspension member based on the electrical characteristic and assuming a currently expected deterioration state based on the bending cycles number and comparing the current actual deterioration state with the currently expected deterioration state; initiating a defined procedure upon determining at least one of the critical deterioration state and the unexpected d
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: May 25, 2021
    Assignee: INVENTIO AG
    Inventor: Philippe Henneau
  • Patent number: 10983081
    Abstract: A technique may include applying a first electrical signal to a first pair of drive electrodes, and, while applying the first electrical signal to the first pair of drive electrodes, determining a first measured voltage using a first measurement electrode. The technique further may include applying a second electrical signal to a second pair of drive electrodes, and, while applying the second electrical signal to the second pair of drive electrodes, determining a second measured voltage using a second, different measurement electrode. The first pair of drive electrodes, the second pair of drive electrodes, the first measurement electrode, and the second, different measurement electrode may from a set of N electrodes electrically coupled to the material. The technique also may include determining whether the material includes a crack or other defect based on a comparison between the first measured voltage and the second measured voltage.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 20, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: David H. Redinger, Christopher R. Yungers, Eric M. Chinnock, Jennifer F. Schumacher
  • Patent number: 10969419
    Abstract: The present disclosure provides an insulation detection circuit, a detection method and a battery management system. The insulation detection circuit includes an isolated power module, first positive and negative sampling modules, second positive and negative sampling modules, and a processor. A first end of the second positive sampling module is connected to a positive electrode of the isolated power module and a second end of the positive switch module, a second end of the second positive sampling module is connected to a second reference voltage terminal; a first end of the second negative sampling module is connected to the second reference voltage terminal, a second end of the second negative sampling module is respectively connected to a negative electrode of the isolated power module and a second end of the negative switch module; and the processor is connected to sampling points.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: April 6, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Baohai Du, Guoxiu Wu, Weiqiang Li, Qiandeng Li
  • Patent number: 10908200
    Abstract: A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor, wherein the displacement of the mechanical member causes a change in an impedance of the resistive-inductive-capacitive sensor.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: February 2, 2021
    Assignee: Cirrus Logic, Inc.
    Inventors: Zhong You, Siddharth Maru, Tejasvi Das, Luke Lapointe, Eric J. King, Anthony S. Doy, Srdjan Marjianovic, Drew Kinney, Matthew Beardsworth, Emmanuel Marchais
  • Patent number: 10890612
    Abstract: An insulation resistance measuring device for detecting insulation resistance of an electric vehicle comprises a battery system, a measuring unit, a control unit and a calculation unit. The measuring unit comprises a circuit module comprises a plurality of resistances connected between a positive side and a negative side of the battery system, a first switch, a second switch, and a voltage detecting unit. The first switch is connected between the circuit module and a ground side. The second switch is connected between the circuit module and the negative side. The voltage detecting unit is arranged at a connecting node of the resistances of the circuit module. The control unit is configured to control the first switch and the second switch to turn on or turn off. The calculation unit is configured to calculate a high potential insulation resistance and a low potential insulation resistance of the electric vehicle.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: January 12, 2021
    Assignee: Foxlink Automotive Technology (Kunshan) Co., Ltd.
    Inventors: Pao Hung Lin, Po Shen Chen, Kuo Ho Cheng, Ming Chun Chang, Tsai Fu Lin
  • Patent number: 10845924
    Abstract: Described herein are capacitive devices and methods for producing same using printing methods such as flexography, gravure, offset, lithography, etc. The capacitive devices are formed from printing conductive inks, non-conductive inks, masking ink layers, graphic artwork layers, and overprint layers on a substrate. Interaction between a conductive ink layer of the capacitive device with a touch screen device of a computer, tablet, smart phone, etc. causes a capacitive effect that allows information coded in capacitive device to be read, leading to an activity such as the download of content to the device having the touch screen.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: November 24, 2020
    Assignee: SUN CHEMICAL CORPORATION
    Inventors: Mathew Mathew, Ramasamy Krishnan
  • Patent number: 10802079
    Abstract: Operating current sense circuits. At least some of the example embodiments are methods including: sensing a current flow through a sense resistor by way of an operational amplifier defining a non-inverting input coupled to a first side of the sense resistor and an inverting input coupled to a second side of the sense resistor; driving a signal to a sense output of the operational amplifier, the signal proportional to the current flow through the sense resistor; and then disabling the current sense circuit comprising: de-coupling a first feedback path of the operational amplifier, the first feedback path coupled to the non-inverting input; and de-coupling a second feedback path of the operational amplifier, the second feedback path coupled to the inverting input. The methods also include disabling the current sense circuit by disabling an input stage of the operational amplifier.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: October 13, 2020
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Razvan Puscasu
  • Patent number: 10678348
    Abstract: A method for touch detection on an ungrounded pen enabled device includes sampling output in a frequency range of a signal emitted from a stylus over a stylus sampling window, detecting touch input from a finger or hand based on detecting a gain between a touch threshold and a stylus threshold, wherein the touch threshold is below the stylus threshold over at least two consecutive columns and two consecutive rows of the sensor and reporting coordinates of the touch input based on detecting the touch input. Stylus input is detected based on detecting a gain above a stylus threshold in at least one column and one row of the sensor and coordinates of the stylus are reported based on stylus input being detected. Sampling is performed simultaneously from both columns and rows of a grid based capacitive sensor.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: June 9, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Eliyahu Barel, Michael Orlovsky
  • Patent number: 10517511
    Abstract: The present invention relates to a patient off-bed notification system, which includes a pressure-sensitive sensor pad, a signal converter, and a signal transmitter. The pressure-sensitive sensor pad includes an upper conductive layer, a bottom conductive layer, and an insulating layer arranged therebetween, where the upper conductive layer and the bottom conductive layer can generate an electrical signal due to a pressure change. The signal converter is used to receive the electrical signal from the pressure-sensitive sensor pad and perform operational analysis to produce a corresponding patient status signal. The signal transmitter transmits the patient status signal from the signal converter to a server, and the server displays or/and stores corresponding information according to the patient status signal. Thus, patient's statuses in bed can be known at any time, and the harm caused when the patient leaves the bed alone can be minimized, thus effectively improving the work efficiency of caregivers.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: December 31, 2019
    Assignee: Hello Nurse Medical Innovations, Inc.
    Inventor: Sharon Lin Charna
  • Patent number: 10452220
    Abstract: Disclosed are a display substrate, a display panel and a display device. The display substrate comprises: a base substrate; at least one pressure sensor provided on the base substrate and comprises a first pressure-sensitive resistor and a second pressure-sensitive resistor, wherein the first pressure-sensitive resistor comprises at least two first sub-pressure sensitive resistors connected in series, and the second pressure-sensitive resistor comprises at least two second sub-pressure sensitive resistors connected in series, a first principal strain induction direction of the first sub-pressure sensitive resistor intersects a second principal strain induction direction of the second sub-pressure sensitive resistor, and a second end of the first pressure-sensitive resistor and a first end of the second pressure-sensitive resistor are electrically connected with a pressure-sensitive signal output line.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 22, 2019
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Liang Liu, Xingyao Zhou, Feng Lu
  • Patent number: 10429483
    Abstract: The sensor interface IC measures or calibrates a target resistance to be used as a gain resistor for a TIA amplifier in the sensor interface IC. One or more excitation currents are generated in response to different specified excitation voltages that are applied to an external calibration resistor having a specified calibration resistance value. Response voltages are measured across the target resistor, respectively in response to the corresponding different one or more excitation currents. The resistance value of the target resistor is determined using a difference between the measured response voltages, a difference between the specified excitation voltages, and the specified calibration resistance value.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: October 1, 2019
    Assignee: Analog Devices Global
    Inventors: GuangYang Qu, Leicheng Chen, Michael Looney
  • Patent number: 10408112
    Abstract: An emissions control substrate having a circuit in sidewalls thereof. The circuit changes resistance in response to accumulation of particles on the sidewalls that inhibits flow of exhaust through the emissions control substrate.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: September 10, 2019
    Assignee: DENSO International America, Inc.
    Inventor: Edward Szczepanski
  • Patent number: 10126282
    Abstract: A method and apparatus estimate yield. A first signal is received that indicates an aggregate yield measured by an aggregate yield sensor during a measurement interval. A second signal is received that indicates a plurality of geo-referenced regions across which a harvester has traveled prior to the measurement interval. The method and apparatus allocate, to each of at least two geo-referenced regions, an aggregate yield portion allocation based upon different travel times for crops to the aggregate yield sensor and pre-harvest weighting data value differences amongst the at least two georeferenced regions. The aggregate yield portion allocations are output.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: November 13, 2018
    Assignee: Deere & Company
    Inventors: Noel W. Anderson, James J. Phelan, Dohn W. Pfeiffer
  • Patent number: 9983142
    Abstract: A reaping based yield monitor system includes one or more reaping yield instruments configured for coupling with a harvester head. The one or more reaping yield instruments measure at least one crop characteristic of a harvested crop in sections of the harvester head. A yield monitor determines a variable yield of the harvested crop. An apportionment module apportions the variable yield of the harvested crop to the sections of the harvester head based on the at least one crop characteristic measured in each of the sections of the harvester head. In another example, a stand counting module counts a harvested standing crop with the one or more reaping yield instruments and a stand count output module output a harvested standing crop value based on one or more of the counted harvested standing crop or filtered measured values of a stand characteristic measured with the one or more reaping yield instruments.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: May 29, 2018
    Assignee: Raven Industries, Inc.
    Inventors: John Earl Acheson, Jared Ernest Kocer
  • Patent number: 9964479
    Abstract: The present invention relates to an apparatus and method for measuring surface tension. More particularly, the present invention relates an apparatus and method for measuring surface tension through an electrical scheme which is simpler and has improved accuracy compared to a conventional optical scheme.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: May 8, 2018
    Assignee: SEOUL NATIONAL UNIVERSITY R&D FOUNDATION
    Inventors: Junghoon Lee, Yongjoo Kwon, Seungyul Choi
  • Patent number: 9952256
    Abstract: The invention relates to a matching circuit for matching impedance values comprising an impedance element with an impedance value, which corresponds to a required total impedance value of the matching circuit, a structurally determined parasitic unit with a parasitic impedance value and a compensation unit with at least one first compensation element. The first compensation element provides a compensation impedance value which is the dual impedance value of the parasitic impedance value. Furthermore, a system comprising a first circuit unit and a second circuit unit with a matching circuit serving for the matching is provided. Also, a method for the compensation of parasitic units for matching purposes is provided.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: April 24, 2018
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventor: Oliver Landolt
  • Patent number: 9927311
    Abstract: A high-sensitivity sensor containing cracks is provided. The high-sensitivity sensor is obtained by forming microcracks on a conductive thin film, which is formed on top of a support, wherein the microcracks form a micro joining structure in which the microcracks are electrically changed, short-circuited or open, thereby converting external stimuli into electric signals by generating a change in a resistance value. The high-sensitivity sensor can be useful in a displacement sensor, a pressure sensor, a vibration sensor, artificial skin, a voice recognition system, and the like.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 27, 2018
    Assignees: Global Frontier Center-Multiscale Energy Systems, SNU R&DB Foundation, Research & Business Foundation Sungkyunkwan Univ.
    Inventors: Daeshik Kang, Yong Whan Choi, Chanseok Lee, Kahp-Yang Suh, Tae-il Kim, Man Soo Choi
  • Patent number: 9897635
    Abstract: A sensor circuit incorporates an analog to digital converter for providing a digital signal derived from sensing elements connected in a bridge configuration. The sensor circuit comprises first and second paths comprising respective first and second sensing elements connected between first and second supply lines; an analog to digital converter having a differential input connected to receive a differential voltage signal (Vinp?Vinn) between the first and second sensing elements and an output for providing a digital output signal (Dout) representing a difference between the first and second sensing elements, the analog to digital converter comprising: current sources connected between the first and second supply lines, each current source being switchably connected to either the first or second sensing elements; and control logic configured to selectively switch current from each of the current sources to either the first path or the second path in dependence on the differential voltage signal.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: February 20, 2018
    Assignee: NXP B.V.
    Inventor: Edwin Schapendonk
  • Patent number: 9851255
    Abstract: A windowless microbolometer for use in terrestrial applications and non-terrestrial applications is provided. The windowless microbolometer array may interact with a flow of gas such that a pixel-based image of the gas is generated when the flow of gas impinges upon the windowless microbolometer array. The windowless microbolometer array may also interact with a molecular beam to provide information related to density, shape, and propagation of the molecular beam.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: December 26, 2017
    Assignee: The Aerospace Corporation
    Inventors: James Hart Clemmons, Brian Blaise Brady, Jeffrey Louis Hall, Thomas Jay Curtiss
  • Patent number: 9843876
    Abstract: The present disclosure generally relates to an audio interface arrangement. In one embodiment, a handheld device comprises the audio interface arrangement (not shown). The audio interface arrangement comprises at least two audio connecting means, wherein each of the at least two audio connecting means is adapted to connect a respective audio accessory to the audio interface arrangement. The audio interface arrangement further comprises an accessory determining means, which is coupled to said at least two audio connecting means. The accessory determining means is adapted to determine which type of audio accessory is connected to the respective audio connecting means. Hereby it is made possible to provide a handheld device that offers a user with a possibility to connect several different audio accessories to the handheld device, which accessories may be connected to the handheld device at the same time.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: December 12, 2017
    Assignee: Zound Industries International AB
    Inventor: Andreas Enquist
  • Patent number: 9735577
    Abstract: A Maintain Power Signature (MPS) Powered Device (PD) is described. In one or more implementations, the MPS device comprises a current sensor configured to sense current flowing from Power Sourcing Equipment (PSE) to the PD. The current sense based MPS device also comprises a current generator configured to sink electrical current to prevent the PSE from removing power to the PD. Thus, the electrical current comprises a current amplitude characteristic selected based upon MPS requirements of the PSE. In some implementations, the current is sunk to a ground. In other implementations, the current is sunk to a storage device, such as a storage device included with the PD and/or external to the PD.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: August 15, 2017
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Cristian Cerutti, Phillip J. Benzel, John M. Wettroth
  • Patent number: 9651593
    Abstract: 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: Grant
    Filed: May 2, 2014
    Date of Patent: May 16, 2017
    Assignee: Apple Inc.
    Inventors: Nicholas A. Sims, Jeffrey J. Terlizzi, Alexei Kosut, Timothy Johnson, Barry Corlett
  • Patent number: 9612268
    Abstract: Ground Potential Rise (GPR) systems and methods with depth sensing measure the GPR between the ground grid and the remote earth. Methods and systems described herein may provide a GPR measurement to an existing distance protection. A GPR system may comprise a set of potential transformers. The set of potential transformers may be coupled to different ground rods driven into the earth at different depths, respectively. One wire of the high voltage side of the potential transformer may be coupled to the ground grid of a substation, and the second wire of the potential transformer may be coupled to an insulated wire that is coupled to a ground rod or multiple of ground rods bonded together. The low voltage side of the potential transformer is used to connect Distance Relays, Voltage Relays, DFR or Alarms.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: April 4, 2017
    Assignee: San Diego Gas & Electric
    Inventors: Girolamo Rosselli, Phil A. Patton, William J. Cook
  • Patent number: 9594032
    Abstract: Computerized method and system for improving 3D reconstruction images involves applying the Extended Field Iterative Reconstruction Technique (EFIRT) to remove correlated noise, in addition to with COMET (constrained maximum relative entropy tomography) or other regularization techniques to eliminate uncorrelated noise, wherein the EFIRT is applied by performing a set of successive reconstructions on an extended field larger than a region of interest (ROI); and extracting and averaging the ROI from said set of successive reconstructions.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: March 14, 2017
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Faisal Mahmood, Lars-Göran Wallentin Öfverstedt, Bo Ulf Skoglund
  • Patent number: 9575103
    Abstract: An integrated circuit includes an output circuit having a first terminal adapted to couple to an external power supply, a second terminal adapted to couple to a reference potential, and a third, control terminal. The first and second terminals of the output circuit provide output terminals of the integrated circuit. The integrated circuit further includes an impedance measurement circuit responsive to the external power supply to generate a control signal for coupling to the control terminal of the output circuit. The control signal controls a current level associated with the output circuit. A corresponding method is also described.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: February 21, 2017
    Assignee: ALLEGRO MICROSYSTEMS, LLC
    Inventors: Glenn A. Forrest, Wei Zhang
  • Patent number: 9547318
    Abstract: In a method performed by a Power Over Ethernet (PoE) system, Power Sourcing Equipment (PSE) provides data and voltage over Ethernet wires to a Powered Device (PD). The PD converts the PSE voltage to a regulated voltage by at least one DC-DC converter in the PD. A first load in the PD, such as a processor, operates in a standby mode during a standby period and draws a low current from the converter via a low current path. During this standby period, a high current load in the PD is disconnected and does not draw current. When the first load comes out of the standby mode and into an active mode, the converter supplies a relatively high current to the second load and the first load. In this way, the first load, if a processor, can be already booted up at the time the second load becomes active.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: January 17, 2017
    Assignee: Linear Technology Corporation
    Inventors: David Dwelley, Jeffrey Heath, Kirk Su
  • Patent number: 9523615
    Abstract: The temperature-dependent resistance of a MEMS structure is compared with an effective resistance of a switched CMOS capacitive element to implement a high performance temperature sensor.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: December 20, 2016
    Assignee: SiTime Corporation
    Inventors: Michael H. Perrott, Shungneng Lee
  • Patent number: 9442088
    Abstract: Systems, methods, and apparatus for magnetic induction tomography imaging of specimens, such as human tissue specimens, using a single coil are provided. A plurality of coil property measurements can be obtained using the single coil at a plurality of discrete locations relative to the specimen. The single coil can be designed to be relatively easy to be placed in many different positions/orientations relative to the specimen. A three-dimensional electromagnetic property map, such as a three-dimensional conductivity map or a three-dimensional permittivity map, can be generated from the plurality of coil property measurements obtained using the single coil by accessing a model correlating coil property measurements obtained by the single coil with an electromagnetic property distribution of the specimen.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: September 13, 2016
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Joseph R. Feldkamp, Shawn Jeffery Sullivan
  • Patent number: 9430066
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for input classification for multi-touch systems. In one aspect, a method includes receiving data describing a first region of contact with a touch sensitive display, a second region of contact with the touch sensitive display, and a third region of contact with the touch sensitive display, the second region of contact being separate from the first region of contact and the third region of contact being separate from the first region of contact and the second region of contact. The method includes classifying the first region of contact as a touch point provided by a user's body part. The method includes classifying the second region of contact as incidental touch input provided by a user's resting body part. The method includes classifying the third region of contact as a stylus input.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: August 30, 2016
    Assignee: PERCEPTIVE PIXEL, INC.
    Inventors: Philip L. Davidson, Jefferson Y. Han
  • Patent number: 9399787
    Abstract: A method of performing an assay of a response of two or more cell types to a test compound, including: providing a device for monitoring cell-substrate impedance, adding at least two different cell types to the device; adding at least one test compound to form at least two test compound wells; providing at least two control wells; monitoring impedance of the at least two test compound wells and of the at least two control wells at three or more time points after adding the at least one test compound; and analyzing measured impedance from the at least two test compound wells and from the at least two control wells at the three or more time points to obtain information on the response of the different cell types to the at least one test compound.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: July 26, 2016
    Assignee: ACEA Biosciences, Inc.
    Inventors: Yama A. Abassi, Xiaobo Wang, Xiao Xu
  • Patent number: 9322629
    Abstract: Systems, methods and apparatus for detecting stalks processed by a combine harvester, for measuring stalk diameters, and for displaying harvest metrics and yield data to a user based on stalk locations and stalk diameters.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: April 26, 2016
    Assignee: Precision Planting LLC
    Inventors: Timothy A. Sauder, Derek A. Sauder, Justin L. Koch, Troy L. Plattner, David Huber
  • Patent number: 9244130
    Abstract: Real-time battery impedance spectrum is acquired using a one-time record. Fast Summation Transformation (FST) is a parallel method of acquiring a real-time battery impedance spectrum using a one-time record that enables battery diagnostics. An excitation current to a battery is a sum of equal amplitude sine waves of frequencies that are octave harmonics spread over a range of interest. A sample frequency is also octave and harmonically related to all frequencies in the sum. A time profile of this sampled signal has a duration that is a few periods of the lowest frequency. A voltage response of the battery, average deleted, is an impedance of the battery in a time domain. Since the excitation frequencies are known and octave and harmonically related, a simple algorithm, FST, processes the time profile by rectifying relative to sine and cosine of each frequency. Another algorithm yields real and imaginary components for each frequency.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: January 26, 2016
    Assignees: Battelle Energy Alliance, LLC, Qualtech Systems, Inc., Montana Tech of the University of Montana
    Inventors: John L. Morrison, William H. Morrison, Jon P. Christophersen, Chester G. Motloch
  • Patent number: 9069024
    Abstract: An insulation resistance measurement circuit in which switching of first and second switches is controlled such that a leakage current may not be generated in measuring insulation resistance, and voltages output through first and second operational amplifiers are measured after opening the first and second switches and closing third and fourth switches for self-testing of the insulation resistance measurement circuit.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: June 30, 2015
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Jeong Hwan Yang
  • Patent number: 9063179
    Abstract: A system for determining an isolation resistance is provided. The system includes a voltage source that applies an output voltage level between first and second electrical terminals of a battery pack. The system further includes a voltage meter that measures a first voltage level between the first electrical terminal and a vehicle chassis, and measures a second voltage level between the first electrical terminal and the vehicle chassis when a resistor is coupled between the first electrical terminal and the vehicle chassis. The voltage meter measures a third voltage level between the second electrical terminal and the vehicle chassis. The system further includes a microprocessor that determines a first isolation resistance value based on the first, second, third voltage levels and the predetermined resistance level.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: June 23, 2015
    Assignee: LG Chem, Ltd.
    Inventor: Greg Bober
  • Publication number: 20150145539
    Abstract: A readout device includes a plurality of detecting circuits arranged in rows and columns to form a detecting array, and an output module. Each of the detecting circuits includes two transistors for generating a detection signal associated with impedance at a target site. Through selection of the rows and the columns of the detecting circuits, the output module outputs an output voltage signal having a magnitude positively correlated with magnitude of a selected one of the detection signals received from the detecting circuits.
    Type: Application
    Filed: April 22, 2014
    Publication date: May 28, 2015
    Applicant: NATIONAL CHI NAN UNIVERSITY
    Inventors: Tai-Ping SUN, Yi-Chuan LU, Tsung-Shuo KAO
  • Publication number: 20150145538
    Abstract: A circuit is provided, including a first resistor, a second resistor and a control unit. The second resistor may have an adjustable resistance. The control unit may be configured to adjust the second resistor to have a first resistance at which a voltage due to a first current flowing through the first resistor is equal to a voltage due to a second current flowing through the second resistor. The control unit may be further configured to adjust the second resistor to have a second resistance at which a voltage due to another first current different from the first current and flowing through the first resistor is equal to the voltage due to the second current flowing through the second resistor. The control unit may be still further configured to adjust the second resistor to have a third resistance based on at least a difference of the first resistance and the second resistance.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: Infineon Technologies AG
    Inventor: Steffen Thiele
  • Patent number: 9041410
    Abstract: A wind turbine blade with a lightning protection for a blade with a shell body has at least one lightning receptor arranged freely accessible in or on a surface of the shell body surface, and a lightning down conductor electrically connected to the lightning receptor and comprising an inner conductor made of electrically conductive material imbedded in a bedding insulation made of an electrically non-conductive material. The lightning down conductor further includes a first conductive layer having a resistance in the range of 10 to 10,000 Mega Ohm per meter (M?/m). The first conductive layer is located in a transverse distance from the inner conductor and being electrically isolated from the inner conductor.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: May 26, 2015
    Assignee: LM Glasfiber A/S
    Inventor: Lars Bo Hansen
  • Patent number: 9041419
    Abstract: Examples of the present invention include apparatus and methods for monitoring aging of an item. A solid-state structure is located within, adjacent to, or otherwise proximate the item, the solid-state structure including nanostructures. The electrical resistance and/or magnetization of the solid-state structure is determined to determine the degree of aging of the item. In representative examples, the solid-state structure includes nanostructures of a metal, such as a ferromagnetic metal, within a non-magnetic matrix, such as a semimetal, semiconductor, or insulator.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: May 26, 2015
    Assignee: Indiana University of Pennsylvania
    Inventor: Gregory G. Kenning
  • Publication number: 20150132857
    Abstract: A device for detecting airborne contaminants includes a protonated, electrically conductive sensing material with affinity for binding with, and capable of being deprotonated by, the airborne contaminant. Electronics measure a property of the sensing material that is sensitive to deprotonation and generates signals indicative of the airborne contaminant. A method for detecting airborne contaminants includes: determining a property change of the protonated, electrically conductive material; and determining presence of the airborne contaminant based on the change.
    Type: Application
    Filed: June 13, 2013
    Publication date: May 14, 2015
    Inventors: Joseph J. Belbruno, Susanne E. Tanski
  • Publication number: 20150130506
    Abstract: A locking system for an integrated circuit (IC) chip can include an arrangement of one or more antifuse devices in a signal path of the IC chip. The antifuse devices can be configured to operate in a first state, corresponding to a normally open switch, to inhibit normal operation of the IC chip, and to transition from the first state to a permanent second state, corresponding to a closed switch, in response to a program signal applied to at least one terminal of the IC chip to enable the normal operation of the IC chip.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 14, 2015
    Inventors: Swarup Bhunia, Abhishek Basak, Zheng Yu
  • Patent number: 9024646
    Abstract: Provided is a circuit for measuring insulation resistance, including: a first operational amplifier that is connected with a positive terminal of a battery and a second operational amplifier; a second operational amplifier that is connected with a negative terminal of the battery and the first operational amplifier; a first switch that is connected between the positive terminal and a non-inverting terminal of the first operational amplifier; and a second switch that is connected between the negative terminal and an inverting terminal of the second operational amplifier, wherein the first operational amplifier and the second operational amplifier are connected with each other through a ground.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: May 5, 2015
    Assignee: SK Innovation Co., Ltd.
    Inventor: Geun Hoe Huh
  • Patent number: 9018958
    Abstract: An apparatus for measuring electrical parameters for an electrical system measures a first and second parameters of the electrical system between connections to the electrical system. A processor determines a third electrical parameter of the electrical system as a function of the first parameter and the second parameter. Wireless communication is provided between components of the apparatus.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: April 28, 2015
    Assignee: Midtronics, Inc.
    Inventor: Kevin I. Bertness
  • Publication number: 20150109006
    Abstract: A tactile sensor includes a flexible medium having electrically conductive strips embedded therein and extending in a first direction, said electrically conductive strips including conductive nanostructures dispersed in a flexible support material, said nanostructures selected from conductive nanowires, carbon nanotubes, and graphene, wherein each electrically conductive strip is connected at each end to an impedance measuring device that measures the impedance across each electrically conductive strip. The electrically conductive strips may be formed on a first layer of the flexible medium by using direct-write technology.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 23, 2015
    Inventors: Jae-Won Choi, Erik Daniel Engeberg, Kye-Shin Lee, Ho-Chan Kim
  • Publication number: 20150109005
    Abstract: A method and apparatus for non-intrusively measuring flowing currents and/or voltage on the inner conductor of a coaxial cable is introduced herein. In particular, a resultant low-impedance element is coupled concentrically to the shield at a desired insertion point of the coaxial cable. A pair of conductive leads provided by the resultant low-impedance element is thereafter monitored for derived flowing currents that are in direct proportion to but of opposite polarity to the current within the inner conductor of the coaxial cable.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 23, 2015
    Applicant: Thermo KeyTek LLC
    Inventor: Marcos HERNANDEZ
  • Patent number: 9013189
    Abstract: An electrical joint monitoring device including a mounting assembly and a wireless transponder unit. The mounting assembly includes a first conductive contact structured to electrically connect to a first conductive member of an electrical joint and a second conductive contact structured to electrically connect to a second conductive member of the electrical joint. The wireless transponder unit includes a control unit electrically connected to the first and second conductive contacts and an antenna electrically connected to the control unit. The wireless transponder unit is configured to sense a voltage difference between the first and second conductive contacts, to generate information based on the voltage difference, and to output the information to a wireless reader unit via the antenna.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: April 21, 2015
    Assignee: Eaton Corporation
    Inventor: John J. Shea
  • Patent number: 9007075
    Abstract: The contactless conductivity detector in one embodiment includes a microfluidic chip having a channel (102) thereon and four detection electrodes: first and second emitting electrodes (100a, 101a), and first and second receiving electrodes (100b, 101b). The channel (102) is defined by channel walls. The first emitting electrode (100a) and the first receiving electrode (100b) are adjacent a first channel wall, and the second emitting electrode (101a) and the second receiving electrode (101b) are adjacent a second channel wall, the second channel wall being opposite the first channel wall.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: April 14, 2015
    Assignee: Agency for Science, Technology and Research
    Inventors: Kambiz Ansari Mahabadi, Isabel Rodriguez Fernandez, Chee Yen Lim
  • Patent number: 9007064
    Abstract: In one embodiment, a method of evaluating electric joints includes: partially separating a terminal portion from a busbar portion of a joint formed between a battery cell terminal and an interconnector busbar; and measuring electric resistance between the terminal portion and the busbar portion. In another embodiment, the step of measuring includes connecting the terminal portion of the joint to a first clip of a first polarity and connecting the busbar portion of the joint to a second clip of an opposing polarity.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: April 14, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Humi Widhalm
  • Patent number: 9003898
    Abstract: Provided herein is a multi-axis sensor including: a pair of electrodes positioned such that at least partial areas thereof face each other; an elasticity member having one of the pair of electrodes installed in its upper portion and another of the pair of electrodes installed in a lower portion; and a sensor unit electrically connected with the pair of electrodes, and configured to detect a change of capacitance value between the pair of electrodes and a change of resistance value of the elasticity member.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: April 14, 2015
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Hyungpil Moon, Jachoon Koo, Hyouk Ryeol Choi, Seonggi Kim