Impedance, Admittance Or Other Quantities Representative Of Electrical Stimulus/response Relationships Patents (Class 324/600)
  • Patent number: 10473389
    Abstract: A refrigeration appliance including both a user interface and door position sensor. The same devices and sensors are for both functions. The user interface is mounted on a door or mullion in such a way that all or nearly all of the input devices on the user interface are activated simultaneously or nearly simultaneously when a door is closed so that the user interface can distinguish this action from user inputs in which only one or two input devices are activated at a time. Likewise, when all input devices are inactivated nearly simultaneously, the user interface may know that a door has been opened.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: November 12, 2019
    Assignee: Electrolux Home Products, Inc.
    Inventor: Timothy E. Willis
  • Patent number: 10473509
    Abstract: The invention is a radar level gauge comprising a signal generator for generating electromagnetic waves and an antenna for emitting the electromagnetic waves in a container and for receiving electromagnetic waves reflected by the container. The radar level gauge also comprises a safety arrangement for verifying the functional capability or for improving the measuring quality of the radar level gauge, said safety arrangement having a reflector and an adjustment rod and/or a reduction sheath and being suitably designed to adjust the reflector and/or the reduction sheath at least between a first position and a second position, in which the reflector reflects the electromagnetic waves in a reduced manner. The adjustment rod acts on the reflector and/or the reduction sheath in a contactless manner.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: November 12, 2019
    Assignee: VEGA GRIESHABER KG
    Inventor: Clemens Hengstler
  • Patent number: 10381780
    Abstract: A socket (16) is designed to receive a plug of a pluggable device (14). The socket has a detection arrangement (42) for detecting connection of a plug to the socket. A new session identifier is generated each time a plug is connected to the socket and it remains valid while the plug remains attached. The session identifier is preferably generated mechanically (48) so that it can be generated without power to the socket or to the plug. This enables detection of system tampering of a system using the sockets.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: August 13, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventor: Eduard Gerhard Zondag
  • Patent number: 10353003
    Abstract: Apparatus (103) suitable for determining the resistance and inductance of an electric motor (101) estimates the phase shift between a voltage applied to the motor and motor current. Estimation of the phase shift employs a heterodyne technique. The measured motor current is conditioned prior to heterodyning in a mixer 203 in order to reduce the effects of nonlinearities introduced by a voltage source inverter (102) which supplies the motor (101) with a voltage. A value for impedance may be calculated as a ratio of a voltage applied to the motor and the motor current. The resistance and inductance may then be calculated from the impedance and phase shift calculations. In cases where the voltage applied to the motor cannot be directly measured but only the voltage supply to the voltage source inverter 102 is known, a value for impedance may be determined based on a ratio of a reconstructed voltage signal having a phase angle equal to that of the motor current and the motor current.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: July 16, 2019
    Assignee: NXP USA, Inc.
    Inventor: Marek Stulrajter
  • Patent number: 10323923
    Abstract: A telemetry system with a matrixed telemetry switch unit array and a method for determining the switch position of a telemetry switch unit. The switch units include steering diodes and parallel signal paths each with unique resistance values. The signal paths correspond to switch positions and are closed when the switch unit is in the corresponding switch position. A signal source is electrically connected to an input current path and output current path of the array with a corresponding telemetry switch unit coupled into the signal path. A plurality of sensing signals are applied through the array and the resultant signals are measured. The switch position is determined from the resultant signals indicating the resistance value of the switch signal path currently coupled into the array signal path while accounting for the voltage drop of the steering diodes.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: June 18, 2019
    Assignee: COM DEV LTD.
    Inventor: Antonio Romano
  • Patent number: 10324056
    Abstract: Moisture detection and ingression monitoring systems and methods of manufacture are provided. The moisture detection structure includes chip edge sealing structures including at least one electrode forming a capacitor structured to detect moisture ingress within an integrated circuit. The at least one electrode and a second electrode of the capacitor is biased to ground and to a moisture detection circuit or vice versa, respectively.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 18, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Fen Chen, Jeffrey P. Gambino, Carole D. Graas, Wen Liu, Prakash Periasamy
  • Patent number: 10309919
    Abstract: Moisture detection and ingression monitoring systems and methods of manufacture are provided. The moisture detection structure includes chip edge sealing structures including at least one electrode forming a capacitor structured to detect moisture ingress within an integrated circuit. The at least one electrode and a second electrode of the capacitor is biased to ground and to a moisture detection circuit or vice versa, respectively.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 4, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Fen Chen, Jeffrey P. Gambino, Carole D. Graas, Wen Liu, Prakash Periasamy
  • Patent number: 10285619
    Abstract: An electrical impedance tomography device includes a plurality of electrodes, a display apparatus, and a control and evaluation unit for reconstructing a matrix of image elements, a spatial distribution of impedance changes in an electrode plane, from measurement signals with a reconstruction algorithm. A time series of matrices are provided from an inhalation and an exhalation that follow. The control unit detects a local impedance change, as a function of a quantity monotonically dependent on average alveolar pressure, as inhalation and exhalation curves from the time series of matrices, to calculate a parameter representing the deviation between the inhalation and exhalation curves as a dissipation value of the image element and to associate the parameter with the image element, to combine the dissipation values of all examined image elements in a dissipation map, and to display the dissipation values with graphical codings dependent on dissipation values of the dissipation map.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: May 14, 2019
    Assignee: Drägerwerk AG & Co. KGaA
    Inventor: Yvo Gärber
  • Patent number: 10271760
    Abstract: A non-invasive and accurate vagina evaluation device and uterine evaluation devices are provided that measure the receptivity (uterine implantation capacity) of the mother's body to a fertilized egg implanting itself into the uterus. A first vagina evaluation device includes: a main body stretchable and expandable after insertion into a vagina, followed by air injection thereinto; four electrodes brought into contact with the vagina wall as the main body expands and stretches; and fixation means configured to fix the interval of arrangement of the electrodes. Second and third uterine evaluation device include: a flexible and rod-shaped main body for insertion into a uterine cavity; and four or two impedance electrodes arranged with a predetermined interval therebetween in an insertion direction of the main body and brought into contact with an endometrium of the uterine cavity to measure a uterine endometrial impedance generated between the endometrium and each of the electrodes.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 30, 2019
    Assignee: Osaka University
    Inventors: Hitomi Nakamura, Tadashi Kimura, Takayoshi Hosono
  • Patent number: 10263580
    Abstract: Disclosed is a differential voltage supplying apparatus configured to supply, to a neural activity recorder, an input signal generated by combining, with a direct current (DC) power supply, a common-mode signal determined from a voltage applied to a detection electrode and a reference electrode connected to the neural activity recorder, and improve a common-mode rejection ratio of the neural activity recorder and generate a DC power supply.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: April 16, 2019
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jung Hyup Lee, Sehwan Lee, Minkyu Je
  • Patent number: 10241150
    Abstract: A semiconductor apparatus includes two or more semiconductor chips and a tester. The two or more semiconductor chips are electrically connected through one or more through-silicon vias (TSVs). The tester is on at least one of the two or more semiconductor chips and tests the state of at least one TSV based on an output signal of the TSV. The TSV is selected as a signal transmission TSV based on the state of the TSV.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: March 26, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-han Woo, Reum Oh, Hae-suk Lee
  • Patent number: 10118557
    Abstract: An automated retractable step system has at least one linkage subassembly for attachment to a vehicle frame. A step is attached to the linkage subassembly and is movable between a stowed position and a deployed position. An actuator is coupled with the linkage subassembly for moving the step between the stowed and deployed positions. A sensor subassembly includes a sensing electrode and a reference electrode disposed adjacent to the sensing electrode and a driven shield electrode extending generally parallel to and in a spaced relationship with the sensing electrode and the reference electrode. A controller is electrically connected to the sensing electrode and to the reference electrode and to the driven shield electrode. The controller is also electrically connected to the actuator for controlling the actuator to move the step between the stowed position and the deployed position in response to the signal from the sensor subassembly.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: November 6, 2018
    Assignee: Magna Closures Inc.
    Inventor: Mirko Pribisic
  • Patent number: 10092210
    Abstract: The present invention relates to an impedance measuring device obtaining impedance of portions of an object corresponding to two sensing electrodes by detecting, through the two sensing electrodes, an electrical variation shown on the object as an electrical signal is applied. A detector amplifying each of signals detected through the two sensing electrodes and then differential-operating the amplified signals to generate a signal for obtaining impedance is subjected to a calibration process for adjusting the gain of the amplifiers to reduce in-phase noise added due to an imbalance between the sensing electrodes.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: October 9, 2018
    Inventors: Jung Jin Hwang, Young Dae Seo
  • Patent number: 10082492
    Abstract: In one general aspect, an apparatus includes a probe including an exterior probe element including a first plurality of links defining a first flexible element. The exterior probe element defines a guard ring. The probe also includes an interior probe element including a second plurality of links defining a second flexible element and disposed within at least a portion of a perimeter defined by the exterior probe element. The apparatus includes a waveform generator electrically coupled to the exterior probe element and the interior probe element.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: September 25, 2018
    Assignee: Bringham Young University
    Inventors: Brian A. Mazzeo, William S. Guthrie, Jared Baxter, Jeffrey D. Barton
  • Patent number: 10028361
    Abstract: A method of evaluating an organic electroluminescence element which includes at least a light emitting layer between an anode and a cathode and has a light emitting element area of not less than 100 mm2 and not more than 1 m2. The method includes the steps of: applying a direct-current voltage not less than a light emission start voltage to the organic electroluminescence element and measuring an impedance spectrum of the organic electroluminescence element; calculating a capacitance from the impedance spectrum; and determining whether a value of the capacitance is positive or negative.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: July 17, 2018
    Assignee: Konica Minolta, Inc.
    Inventor: Hiroyuki Nabeta
  • Patent number: 9939464
    Abstract: The present invention relates to current measurement apparatus 100. The current measurement apparatus 100 comprises a measurement arrangement 110, 114 which is configured to be disposed in relation to a load 108 which draws a current signal, the measurement arrangement being operative when so disposed to measure the load drawn current signal. The current measurement apparatus 100 also comprises a signal source 112 which is operative to apply a reference input signal to the measurement arrangement 110, 114 whereby an output signal from the measurement arrangement comprises a load output signal corresponding to the load drawn current signal and a reference output signal corresponding to the reference input signal.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 10, 2018
    Assignee: Analog Devices Global
    Inventors: Stephen James Martin Wood, Jonathan Ephraim David Hurwitz, Seyed Amir Ali Danesh
  • Patent number: 9912326
    Abstract: A method for maintaining good cancelation in a passive feed-forward cancelation circuit is disclosed. The feed-forward cancelation circuit may include at least one path which may comprise a phase-shifter and a variable attenuator. This method uses the complex value of the reflection coefficient at the point where the communication device is connected to a transmission medium, such as an antenna, to determine the values for the phase shifter(s) and the variable attenuator(s).
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: March 6, 2018
    Assignee: ABTUM INC.
    Inventor: Sam Mandegaran
  • Patent number: 9892640
    Abstract: A high-voltage apparatus has at least one high-voltage component and at least one current sensor, which is assigned to a corresponding high-voltage component. The high-voltage apparatus has at least one transmission apparatus, to which at least one corresponding current sensor is assigned. The at least one transmission apparatus is designed to provide an information signal, which contains information on whether there is a potential risk originating from the corresponding high-voltage component or not, depending on a measurement signal of the at least one corresponding current sensor, by way of a wireless radio link in order for the information to be reproduced on an external reproduction apparatus.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: February 13, 2018
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Peter Krams, Andreas Boehland
  • Patent number: 9891256
    Abstract: A method for determining current return path integrity in an electric device with a plurality of signal lines and supply lines. A library with at least one reference signal pattern of a near end crosstalk signal on a defined signal line arising from an input signal on another defined signal line is provided, a predetermined signal to a selected signal line of the electric device is applied, the near end crosstalk signal on at least one further signal line of the electric device is detected, said near end crosstalk signal is compared with the corresponding reference signal pattern from the library, and if there is a deviation between the near end crosstalk signal and the corresponding reference signal pattern, an information that there is any defect in the electric device is displayed.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: February 13, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roland Frech, Erich Klink, Jurgen Saalmuller
  • Patent number: 9844123
    Abstract: A light-emitting diode (LED) lamp using an LED driving circuit, at least two frequency sensitive devices, at least six diodes configured to convert an AC voltage into a DC voltage and manage electric current flows, a switch control module, and a return current switch operates normally with an input voltage from either ballast or line voltages of AC mains. The LED driving circuit may be configured to operate normally only with the AC mains providing a regulated power and a current to LED arrays. When an input AC voltage is applied to the LED lamp, the at least six diodes and the at least two frequency sensitive devices can detect the input AC voltage, control electric current flowing into the switch control module or the LED driving circuit, and complete current returns so that the LED lamp can operate with either the ballast or the AC mains without operational ambiguity.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: December 12, 2017
    Assignee: LIGHTEL TECHNOLOGIES, INC.
    Inventor: Chungho Hsia
  • Patent number: 9818014
    Abstract: A sensor unit for measuring surface structures and properties of an object of organic tissue includes a contact surface adapted to have mechanical contact with the object, a first dielectric layer made from a dielectric material, a first conductor layer including at least one shielding electrode essentially covering an area of the dielectric layer facing the contact surface, the at least one shielding electrode surrounding at least one essentially non-conductive aperture defining a sensing region, and a second conductor layer separated from the first conductor layer by the first dielectric layer and comprising a number of conductive wires extending at least partially under the at least one aperture and having a direction essentially perpendicular to the sensing region, each wire having a predetermined width. A sensing area of each wire is defined by the width and the length of each wire extending in the sensing region.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: November 14, 2017
    Assignee: IDEX ASA
    Inventors: Geir Ivar Bredholt, Ralph W. Bernstein, Øyvind Sløgedal
  • Patent number: 9782588
    Abstract: Sample and hold circuitry for monitoring electrodes and other voltages in an implantable neurostimulator is disclosed. The sample and hold circuitry in one embodiment contains multiplexers to selected appropriate voltages and to pass them to two storage capacitors during two different measurement phases. The capacitors are in a later stage serially connected to add the two voltages stored on the capacitors, and voltages present at the top and bottom of the serial connection are then input to a differential amplifier to compute their difference. The sample and hold circuitry is particularly useful in calculating the resistance between two electrodes, and is further particularly useful when resistance is measured using a biphasic pulse. The sample and hold circuitry is flexible, and can be used to measure other voltages of interest during biphasic or monophasic pulsing.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 10, 2017
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Jess W. Shi, Emanuel Feldman, Jordi Parramon
  • Patent number: 9766280
    Abstract: A difference measurement circuit including a first port and a second port for connection to a first set of nodes and a second set of nodes of a sensor unit. The circuit further includes switching units for switching excitation signals emanating from excitation nodes from being applied to the first set of nodes via the first port to being applied to the second set of nodes via the second port and for switching differential measurement signals measured at sensing nodes from being obtained from the second set of nodes via the second port to being obtained from the first set of nodes via the first port. A corresponding method is described. The circuit further includes redundancy testing circuitry for evaluating the similarity or deviation between measurement signals obtained in different states of the switching units.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: September 19, 2017
    Assignee: MELEXIS TECHNOLOGIES N.V.
    Inventors: Johan Raman, Pieter Rombouts
  • Patent number: 9755679
    Abstract: A communication device is disclosed. The communication device includes a receiver, a transmitter, a memory, a sensor to measure antenna detuning, a plurality of receiver configurations stored in the memory. Each of the plurality of receiver configurations include parameter-value pairs and a control unit, coupled to the sensor and the receiver, to select a receiver configuration from the plurality of receiver configurations based on an output of the sensor. The control unit is configured to alter a processing behavior of the receiver by altering values of receiver control parameters according to the parameter-value pairs.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: September 5, 2017
    Assignee: NXP B.V.
    Inventors: Markus Wobak, Leonhard Kormann
  • Patent number: 9715240
    Abstract: A facility equipment operation device includes an affected section determiner and a mismatch detector. An affected section determiner computes an affected section that is affected by a controlled equipment that is facility equipment with a changed control parameter, by referencing data including an installation position of facility equipment in an objective space, and a capability related to an area affected by the facility equipment. The mismatch detector detects a mismatched state on the basis of whether or not an effect exerted by the controlled equipment on the affected section when the controlled equipment operates according to the changed control parameter, and an effect exerted on the affected section by a facility equipment currently operating, are in a predetermined relationship.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: July 25, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroko Izumihara, Tomoaki Gyota, Masanori Nakata
  • Patent number: 9651407
    Abstract: Systems, devices, and methods for configurable sensor arrays are provided. An example of a configurable sensor array includes a plurality of sensors in a matrix array formed on a single backplane and a plurality of elements within one of the plurality of sensors, where the plurality of elements provides alternative electrical paths enabling the one of the plurality of sensors to have a range of output impedances.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: May 16, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Devin Alexander Mourey, Randy L. Hoffman, James William Stasiak, Brad Benson
  • Patent number: 9626055
    Abstract: An in-cell touch screen, a touch detection method thereof and a display device are disclosed, the in-cell touch screen comprising: an array substrate and an opposed substrate arranged opposite to each other; a self-capacitance electrode pattern (100, 200), disposed on a side of the array substrate facing the opposed substrate and/or a side of the opposed substrate facing the array substrate, including: a plurality of first self-capacitance electrodes (100), each of the first self-capacitance electrodes (100) being a strip electrode, a plurality of second self-capacitance electrodes (200), each of the second self-capacitance electrodes including a plurality of block electrodes (210) electrically connected with each other; and a touch detecting chip, configured to judge a touch position according to signal variation of the self-capacitance electrode pattern, wherein orthogonal projections of each of the first self-capacitance electrodes (100) and each of the second self-capacitance electrodes (200) on the array
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 18, 2017
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Shengji Yang, Weijie Zhao, Tao Ren
  • Patent number: 9561383
    Abstract: Cardiac defibrillation or cardioversion waveform energy control systems employ transvenous ICDs, subcutaneous SICDs, or pacemakers for treating cardiac conditions. The systems comprise differentially driven amplifier circuit operational modes to control the delivery of pacing, anti-tachycardia pacing, defibrillation, and/or cardioversion electrical shocks, wherein the pacing, anti-tachycardia pacing, and shock waveforms employ constant current, constant voltage, or constant energy. Biphasic arbitrary shock waveforms deliver increasing energy with increasing time as represented by phase 1 ascending ramp, ascending exponential, ascending chopped, ascending stepped, ascending curved, square, or rectilinear and/or any combination of geometric shaped ascending arbitrary waveforms or any BTE waveform.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: February 7, 2017
    Assignee: Ruse Technologies, LLC
    Inventors: Raymond E. Ideker, Richard B. Ruse, Scott Bohanan
  • Patent number: 9518857
    Abstract: A radar level gauge system comprising a single conductor probe extending through a tubular mounting structure towards and into the product in the tank, a shielding structure radially spaced apart from the single conductor probe and extending along a top portion of the probe inside the mounting structure and past the lower end of the mounting structure, and processing circuitry connected to the transceiver for determining the filling level of the product in the tank. The shielding structure at least partly encloses the top portion of the single conductor probe, and is open in a radial direction to allow entry of the product. The shielding structure exhibits a total enclosing arc angle around the single conductor probe greater than 180° inside the tubular mounting structure, and a total enclosing arc angle around the single conductor probe that decreases with increasing distance from the lower end of the mounting structure.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: December 13, 2016
    Assignee: ROSEMOUNT TANK RADAR AB
    Inventors: Olov Edvardsson, Lars Ove Larsson, Christer Joshua Frovik, Mikael Eriksson
  • Patent number: 9500675
    Abstract: A probe module, which supports loopback test and is provided between a PCB and a DUT, includes a substrate, a probe base, two probes, two signal path switchers, and a capacitor. The substrate has two first connecting circuits and two second connecting circuits, wherein an end of each first connecting circuit is connected to the PCB. The probe base is provided between the substrate and the DUT with the probes provided thereon, wherein an end of each probe is exposed and electrically connected to one second connecting circuit, while another end thereof is also exposed to contact the DUT. Each signal path switcher is provided on the probe base, and respectively electrically connected to another end of one first and one second connecting circuits. The capacitor is provided on the probe base with two ends electrically connected to the two signal path switchers.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: November 22, 2016
    Assignee: MPI CORPORATION
    Inventors: Wei-Cheng Ku, Jun-Liang Lai, Wei Chen, Hsin Hsiang Liu, Kuang Chung Chou, Chan Hung Huang
  • Patent number: 9464880
    Abstract: A proximity transducer system including an eddy current effect proximity probe, a proximity electronics module coupled to the probe, a monitoring system and a two-wire, current interface connecting the proximity electronics module to the monitoring system is disclosed. The proximity transducer system is operative for measuring position and vibration of a component to be monitored. The current interface is made up of a pair of wires, e.g., a twisted pair, and is adapted for providing power to the electronics module and an electrical signal from the proximity electronics module that is representative of (e.g., proportional to) the length of the gap between the probe and the component being monitored. That signal has a DC component that represents a steady state distance and an AC component that represents active movement of the component, such as vibration.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: October 11, 2016
    Assignee: Metrix Instrument Co., LP
    Inventors: Randall Richard Chitwood, Christine Borgfeld, David Dobsky
  • Patent number: 9341696
    Abstract: A method, a system, and a control apparatus for setting an over-current protection point of an electronic device are provided. The method comprises: step 1, the parameter auto-test equipment transmitting a starting signal and outputting a target current for over-current protection based on the auto-adjustment control unit; step 2, the first driving signal generator receiving the starting signal and transmitting a driving signal to the over-current protection module; and step 3, the electronic device receiving the target current for over-current protection, and the over-current protection module receiving the driving signal and adjusting a resistance of the resistance adjusting unit to the over-current protection point of the electronic device. The invention attains fully automatic operation on the over-current protection point of the electronic device, improves stability and consistency of setting the over-current protection point, and saves labor cost at the same time.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 17, 2016
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: LiuQun Xie, XiangRong Hu
  • Patent number: 9190183
    Abstract: Apparatuses and systems for emulating electrical characteristics of a material having a known dielectric constant or property are disclosed for standardizing and calibrating of electromagnetic devices. The emulator apparatus can include an electrically non-conductive layer having a dielectric constant less than the material dielectric constant and an electrically conductive layer adjacent the non-conductive layer. Artificial dielectrics for emulating the dielectric constant of a material are also disclosed including a substrate matrix having a dielectric constant less than the material dielectric constant and an additive combined with the substrate, the additive having a dielectric constant higher than the material dielectric constant. Artificial dielectrics may simulate the frequency response of a material relating to a specific property.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: November 17, 2015
    Assignee: Troxler Electronic Laboratories, Inc.
    Inventor: Robert Ernest Troxler
  • Patent number: 9140742
    Abstract: A method of measuring conductivity of a silicon thin film is provided. By the method, a capacitive sensor is positioned over a silicon thin film sample with an air-gap between the sensor and the sample, a size of the air-gap is measured using the capacitive sensor while an excitation light source module is turned off, an excitation light is illuminated on the silicon thin film sample by turning on the excitation light source module, where the excitation light is an ultraviolet light, a conductivity change of the silicon thin film sample is measured using the capacitive sensor, and a measurement error due to a deviation of the air-gap is eliminated by normalizing the conductivity change based on a measurement result of the size of the air-gap.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: September 22, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Alexander Voronov, Seok-Ho Lee, Ji-Hunny Jung, Kyung-Hoe Heo, Gyoo-Wan Han
  • Patent number: 9059680
    Abstract: An impedance adjustment apparatus of the invention performs impedance matching using characteristic parameters, even where a high frequency power source of variable frequencies is used. The apparatus is applicable to a power supply system using a high frequency power source of variable frequencies. Characteristic parameters obtained by targeting a portion of combinations of position information (C) of a variable capacitor and output frequency information (F) of the power source are stored in a memory. A T-parameter acquisition unit acquires characteristic parameters corresponding to (Cnow, Fnow) at the current time. An output reflection coefficient calculation unit calculates a reflection coefficient of an output end. A target information specifying unit, based on the above information and a target input reflection coefficient, specifies target combination information in which a reflection coefficient of an output end approaches the target input reflection coefficient.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: June 16, 2015
    Assignee: DAIHEN CORPORATION
    Inventors: Takashi Shimomoto, Koji Itadani, Masakatsu Mito
  • Patent number: 9000778
    Abstract: A method for underground pipeline monitoring in which a continuous alternating electrical current having a current frequency in a range of about 1 kHZ to about 8 kHz is imparted onto a pipeline, producing an alternating magnetic field at the current frequency along the pipeline. Distributed along the pipeline is a network of RFID tag sensors which absorb an amount of energy from the alternating magnetic field. The impedance of the sensors is modulated, producing a modulated sensor impedance which is detected at a location proximate the location at which the continuous alternating electrical current is imparted onto the pipeline.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: April 7, 2015
    Assignee: Gas Technology Institute
    Inventors: Christopher John Ziolkowski, James Emerson Huebler, Michael Christian Mensinger, Jr.
  • Patent number: 8988088
    Abstract: Disclosed is a liquid immersion sensor comprising a substrate (10) carrying a conductive sensing element (20) and a corrosive agent (30) for corroding the conductive sensing element, said corrosive agent being immobilized in the vicinity of the conductive sensing element and being soluble in said liquid.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: March 24, 2015
    Assignee: Quotainne Enterprises LLC
    Inventors: Aurelie Humbert, Matthias Merz, Roel Daamen, Youri Victorovitch Ponomarev
  • Patent number: 8988082
    Abstract: A bioreactor includes a plastic enclosure for containing a biological medium, the enclosure being integrally formed to have one or more elongate port extensions projecting outwardly from the enclosure and communicating from the exterior to the interior of the enclosure. A biomass impendence monitor probe is provided for use in conjunction with the bioreactor. The probe is pushed into one or more of the elongate ports in order to have an electrode arrangement positioned internally of the container. The probe has an elongate housing having an outer surface extending along and contiguous with the elongate inner surface of the port extension. The housing extends from the electrode end of the probe to a remote end. The housing is provided with an electrical connector connected to the electrode arrangement.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: March 24, 2015
    Assignee: Aber Instruments Limited
    Inventors: Jonathan Selman, John Carvell
  • Patent number: 8963769
    Abstract: A guided wave radar transmitter for interface measurement comprises a probe defining a transmission line for sensing level of two immiscible liquids to define an interface therebetween. A pulse circuit generates pulses on the transmission line and receives a reflected signal from the transmission line. The reflected signal selectively includes a level pulse representing material level and an interface pulse representing interface level. A controller operates in an interface mode to determine the material level and the interface level responsive to receiving the level pulse and the interface pulse. The controller operates in a medium identification mode responsive to not receiving the interface pulse, comprising calculating an estimated amplitude of the level pulse for the two immiscible liquids and comparing actual amplitude of the level pulse to the estimated amplitude of the level pulse to identify the medium in the vessel.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: February 24, 2015
    Assignee: Magnetrol International, Incorporated
    Inventors: Michael J. Linden, James M. Berry
  • Patent number: 8947102
    Abstract: Soil water content and bulk electrical conductivity may be determined by time domain reflectometry at multiple depths in the soil such that the entire soil profile from the surface to a user-selected depth may be characterized. A short rise-time pulse is passed into an electrode and the reflected pulse is captured at multiple times. A waveform of reflection coefficient versus time is determined, which may be used to determine the pulse travel time, effective frequency and reflection coefficients at times necessary for the determination of the soil water content and bulk electrical conductivity.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: February 3, 2015
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Steven R. Evett, Scott K. Anderson, Joaquin J. Casanova, Robert C. Schwartz
  • Patent number: 8942954
    Abstract: Fault location on a non-homogeneous electric power line that includes a plurality of sections by determining a section in which negative-sequence voltage magnitude profiles calculated from each terminal of the power line intersect. The fault location may determine the faulted section and determine the location of the fault within the faulted section. To determine the fault location, the negative-sequence voltage magnitude profiles may be calculated from measurements taken at each terminal of the power line and compared to determine a point where the profiles intersect. The profiles may be calculated using power line properties and measurements from each terminal.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: January 27, 2015
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Yanfeng Gong, Armando Guzman-Casillas, Mangapathirao Venkata Mynam, Richard M. Edge
  • Patent number: 8937476
    Abstract: A sensor device includes first and second electrodes, a coating film and a functional element. The first electrode includes a first metallic material in which either a first passivation film forms on a surface thereof or the first passivation film present on the surface thereof is lost, in association with changes in the pH of a measurement site. The second electrode includes a second metallic material different from the first metallic material, and is spaced apart from the first electrode. The coating film includes a third metallic material different from the first and second metallic materials. The coating film covers at least the first or second electrode. The functional element is configured to measure a difference in electric potential between the first and second electrodes that changes depending on presence or absence of each of the first passivation film and the coating film in association with the changes in pH.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 20, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Juri Kato, Takao Miyazawa
  • Patent number: 8928332
    Abstract: An apparatus for electrical impedance imaging has electrodes arranged on an electrode carrier in an arrangement including a unit of repetition. The unit of repetition repeats over the electrode carrier and has an angle of rotational symmetry less than 90°. Specifically, the unit of repetition is an equilateral triangle or a hexagon.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: January 6, 2015
    Assignee: WZVI Limited
    Inventor: Wei Wang
  • Publication number: 20150002168
    Abstract: One system includes a pattern generator that generates one or more excitation patterns suitable for probing a hydration level of a tissue of a subject at one or more depths from a surface of the subject into an interrogation region. Each of the excitation patterns has a spatial sensitivity at one of the one or more predetermined depths. A data analysis module receives one or more measured responses of the subject at a plurality of electrodes to excitation applied by the plurality of electrodes based on the one or more excitation patterns and determines one or more hydration changes at the one or more depths within the subject based on the measured responses. Each of the measured responses corresponds to the one of the one or more predetermined depths for which the applied excitation pattern has spatial sensitivity.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Inventors: Tzu-Jen Kao, David Michael Davenport, Jeffrey Michael Ashe, Xiaohui Chen
  • Patent number: 8912809
    Abstract: A test system for testing an antenna tuning element is provided. The test system may include a tester, a test fixture, and a probing structure. The probing structure may include probe tips configured to mate with corresponding solder bumps formed on a device under test (DUT) containing an antenna tuning element. The DUT may be tested in a shunt or series configuration. The tester may be electrically coupled to the test probe via first and second connectors on the test fixture. An adjustable load circuit that is coupled to the second connector may be configured in a selected state so that a desired amount of electrical stress may be presented to the DUT during testing. The tester may be used to obtain measurement results on the DUT. Systematic effects associated with the test structures may be de-embedded from the measured results to obtain calibrated results.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: December 16, 2014
    Assignee: Apple Inc.
    Inventors: Liang Han, Matthew A. Mow, Ming Tsai, Thomas E. Biedka, Robert W. Schlub, Ruben Caballero
  • Patent number: 8847602
    Abstract: A plug-in module for a liquid- or gas-sensor comprised of a sensor module (SM) and a sensor module head (SMH), which can be releasably connected together, and which, when connected, enable data and energy transfer via a galvanically decoupled transfer section, wherein the sensor module head (SMH) includes an energy supply unit for operating the sensor module head (SMH) and the sensor module (SM), as well as a data memory (MEM), in order to store sensor data received from the sensor module (SM).
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: September 30, 2014
    Assignee: Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG
    Inventors: Detlev Wittmer, Wolfgang Babel
  • Patent number: 8849599
    Abstract: The present invention discloses a method for extracting of solar cell parameters. After illuminating the solar cell by different simulated solar luminosity with different illumination intensity, measured current and measured voltages of the solar cell are acquired and the series resistance of the solar cell is extracted based on the measured current and measured voltages. The root mean square error (RMSE) is used to determine the series resistance of the solar cell. Therefore, the parameters of the solar cell are extracted without presuming current-voltage functional form.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: September 30, 2014
    Assignee: National Tsing Hua University
    Inventors: Sheng-Fu Horng, Ming-Kun Lee, Jen-Chung Wang, Hsin-Fei Meng
  • Patent number: 8847614
    Abstract: A combiner box capable of monitoring energy output from a photovoltaic system and having improved troubleshooting functionality, the ability to independently verify utility charges, and a mechanism for reducing incorrect readings of energy output and consumption due to noise and interference.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: September 30, 2014
    Assignee: E Gear LLC
    Inventors: Christopher Robert DeBone, Steven Peter Godmere
  • Patent number: 8841874
    Abstract: An electrical stepper motor comprises a magnetical rotor and at least two electromagnetical driving coils for causing rotation of the rotator. A method of detecting an operating condition of the as e.g. a stall state of the electrical stepper motor comprises the steps of connecting one contact pin (P, M) of at least one of the electromagnetical driving coils via a high-impedance resistor (R1, R2) to a defined voltage source during a non-activated state of the driving coil, detecting a voltage induced at the driving coil during the non-activated state and converting the detected voltage into a digital signal, and digitally analyzing the digital signal and deriving an operating condition of the rotor by evaluation of the signal waveform including positive and negative components of the signal.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: September 23, 2014
    Assignee: Spansion LLC
    Inventors: Jens Wagner, Armin Dietrich, Kai Dieffenbach, Marco Bodenmüller, Jürgen Rohn, Wolfgang Wiewesiek
  • Patent number: 8841920
    Abstract: The invention relates to a lithography system. The lithography system has a projection lens system and a capacitive sensing system. The projection lens system is provided with a final projection lens. The capacitive sensing system is arranged for making a measurement related to a distance between the final projection lens and a target. The capacitive sensing system includes at least one capacitive sensor. Additional, the capacitive sensing system is provided with a flexible printed circuit structure and at least one integrated flex print connector. The at least one sensor is located in the flexible printed circuit structure. The flexible printed circuit structure has a flexible base provided with conductive electrodes for the at least one sensor and conductive tracks. The conductive tracks extend from the electrodes along the at least one integrated flex print connector.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: September 23, 2014
    Assignee: Mapper Lithography IP B.V.
    Inventors: Guido De Boer, Johnny Joannes Jacobus Van Baar, Kaustubh Prabodh Padhye, Robert Mossel, Niels Vergeer, Stijn Willem Herman Karel Steenbrink