Measuring, Testing, Or Sensing Electricity, Per Se Patents (Class 324/76.11)
  • Patent number: 10418093
    Abstract: A memory device may include a memory array with multiple memory cells and one or more sense amplifiers connected to the memory array. Each sense amplifier may include a matched pair of transistors. An active matching fill feature may also be included proximate to at least one transistor of the matched pair of transistors.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 17, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Steve V. Cole, Benjamin A. Millemon, Toby D. Robbs, J. W. Thompson
  • Patent number: 10408867
    Abstract: A spectrum analyzer for a signal IRF comprising a plurality of frequencies fi comprises N entities each made up of a structure formed by a stack of magnetic and non-magnetic layers having in at least one of the magnetic layers a magnetic configuration in the shape of a vortex, the excitation modes of the magnetic configuration being suitable for detecting the frequencies contained in an incident signal in real time, each entity having a first lower electrode and a second upper electrode, a voltage-measuring device suitable for measuring an electric voltage showing the presence of a frequency fk in the analyzed signal IRF, the device being connected to the lower electrode and to the upper electrode, a measurement-processing device suitable for determining the value of the frequencies fk in the signal IRF, and a line carrying the signal to be analyzed to each of the entities.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: September 10, 2019
    Assignees: THALES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Julien Kermorvant, Paolo Bortolotti, Bruno Marcilhac, Jean-Claude Mage, Vincent Cros
  • Patent number: 10401155
    Abstract: A method of inspecting a structure including a photonic material using a movable inspection apparatus includes irradiating a section of the structure, receiving radiation diffracted from a photonic material in the section of the structure, determining a deformation of the photonic material as a function of at least one of i) an intensity of the radiation received ii) a position of the radiation received and iii) a wavelength of the radiation received, and determining if a magnitude of the deformation is higher than a threshold. If the magnitude of the deformation is higher than the threshold data is stored concerning the deformation of the photonic material; contrarily, if the magnitude of the deformation is not higher than the threshold: the inspection at the location of the photonic material is stopped and the inspection apparatus is moved in order to inspect another section of the structure.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: September 3, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: Enrico Bovero
  • Patent number: 10383192
    Abstract: A lighting network includes a lighting network base station and one or more contactless lighting network components. The lighting network base station includes: a radio frequency (RF) amplifier which supplies an RF power signal to a lighting network line pair; and a first power line communication coupler which couples the lighting network line pair to a first power line communication device. The contactless lighting network component extracts electrical power from the RF power signal on the lighting network line pair, and couples the lighting network line pair to a second power line communication device. The first and second power line communication devices communicate network data via the lighting network line pair. The contactless lighting network component may include a lighting fixture (e.g., including one or more LED light sources), a sensor, and/or a lighting network interface adaptor.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: August 13, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Brian Roberge, Dirk Fieberg, Jonathan Stuart Levy
  • Patent number: 10349848
    Abstract: A conversion circuit for converting a current signal into a first output voltage signal, where the current signal flows through a sensing component, is provided. The conversion circuit includes: a first current eliminating circuit, configured to eliminate a first current in the current signal. The first current eliminating circuit includes: a current sample and hold circuit; and a current driving circuit, coupled between the sensing component and the current sample and hold circuit; a second current eliminating circuit, coupled to the sensing component and configured to eliminate a second current in the current signal; and an integrating circuit, coupled to the sensing component and configured to integrate a third current in the current signal, and output a first input voltage signal between a first integration output terminal and a second integration output terminal.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: July 16, 2019
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Tao Pi, Mengwen Zhang, Chang Zhan
  • Patent number: 10338145
    Abstract: A voltage monitoring system having a microcontroller with an analog-to-digital converter with a first channel, and a memory device is provided. The microcontroller includes a monitoring application and a hardware abstraction layer. The monitoring application sends a first encoded channel number to the hardware abstraction layer. The hardware abstraction layer determines a first channel number based on the first encoded channel number, and obtains a measured voltage value associated with the first channel number. The hardware abstraction layer sends a second encoded channel number and the measured voltage value therein to the monitoring application. If the first encoded channel number is equal to the second encoded channel number, then the monitoring application stores the measured voltage value in the memory device.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: July 2, 2019
    Assignee: LG Chem, Ltd.
    Inventor: Kerfegar K. Katrak
  • Patent number: 10338115
    Abstract: A digital measurement system includes an oscillator, a mixer, and a controller coupled to each other. The oscillator provides a reference signal having a second frequency. The mixer generates a down-converted signal based on the output signal and the reference signal. The controller then determines a characteristic of the output signal (e.g., frequency or phase) based on the down-converted signal. An analog measurement system includes a filter having a center frequency, a rectifier, and a controller. The filter filters the output signal and the rectifier rectifies the filtered signal. The controller samples the rectified signal and determines a characteristic of the output signal based on the level of the rectified signal. The reference signal controller may adjust a characteristic of the output signal based on the determined frequency and/or phase of the output signal.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: July 2, 2019
    Assignee: Covidien LP
    Inventors: Wayne L. Moul, Robert J. Behnke, II, Scott E. M. Frushour, Jeffrey L. Jensen
  • Patent number: 10317973
    Abstract: A computing system includes a system board having a system controller device with an interrupt input. A system expansion bus connector is located on the system board and includes power pin(s) and an interrupt signal pin connected to the interrupt input. A peripheral device expansion card system is coupled to the computing system through system expansion bus connector and includes a system power reporting device coupled to the power pin(s) to receive power from the computing system via the power pin(s), and a card controller device coupled to the system power reporting device and to the interrupt signal pin. The card controller device determines, using the system power reporting device, a power state of the computing system. The card controller device also sends, to the system controller device through the interrupt signal pin, an interrupt signal that the system controller device interprets as a hot plug event.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: June 11, 2019
    Assignee: Dell Products L.P.
    Inventors: Yimin Xiao, Terry L. Matula
  • Patent number: 10312041
    Abstract: Disclosed herein are systems and methods for estimating a period and frequency of a waveform. In one embodiment, a system may comprise an input configured to receive a representation of the input waveform. A period determination subsystem may perform an iterative process to determine the variable period of the input waveform. The iterative process may comprise selection of an estimated window length, determination of an autocorrelation value based on the estimated window length, determination of an adjustment value to the window length to identify a maximum of the autocorrelation value; and determination of the variable period based on the window length associated with the maximum of the autocorrelation value. The period determination subsystem may perform the iterative process to track changes in the variable period of the input waveform. A control action subsystem may implement a control action based on the variable period of the input waveform.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: June 4, 2019
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventor: Bogdan Z. Kasztenny
  • Patent number: 10305283
    Abstract: A method for reducing a delay between a power command and actual power of a power system includes receiving, via a power angle estimator, a power command of the power system. The method also includes receiving, via the power angle estimator, one or more grid conditions of the power grid. Further, the method includes estimating, via the power angle estimator, a power angle signal across the power system based on the power command and the one or more grid conditions. Moreover, the method includes receiving, via a phase locked loop (PLL), the estimated power angle signal. In addition, the method includes generating, via the PLL, a PLL phase angle signal based, at least in part, on the estimated power angle signal. Thus, the method further includes controlling, via a converter controller, a power conversion assembly of the power system based on the PLL phase angle signal.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: May 28, 2019
    Assignee: General Electric Company
    Inventor: Einar Vaughn Larsen
  • Patent number: 10302681
    Abstract: According to one embodiment, a current detection circuit (12) includes: a detection resistor (Rs) provided between a solenoid valve (106) and a solenoid driver (11); an amplification unit (121) configured to amplify a detected voltage of the detection resistor (Rs); an AD converter (122) that is driven by a reference voltage (Vref) generated based on a reference current (Iref) and configured to convert an output voltage from the amplification unit (121) into a digital value and output the digital value as a detected current value (D1); and a correction unit configured to perform a correction on the detected current value (D1).
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: May 28, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Masanori Otsuka, Wataru Saito, Yoshitaka Jingu, Yasuhiko Kokami, Satoshi Kondo, Junya Horishima
  • Patent number: 10261117
    Abstract: A method includes a) counting whole periods of a signal during a first period of a reference signal, b) repeating step a) for each period of the reference signal until a first duration is equal to a first quantity of periods of the reference signal, and c) determining a first average of the whole periods. The method also includes repeating at least one of steps a) to c) and at each repetition shifting a start of the counting of step a) by at least one period of the reference signal, and in steps b) and c) accounting for whole periods of the signal already counted during the at least one preceding group of steps a) and b). The method includes determining a second average of the first averages, and determining the frequency of the signal from the second average and the frequency of the reference signal.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: April 16, 2019
    Assignee: STMicroelectronics SA
    Inventors: Marc Houdebine, Sebastien Dedieu
  • Patent number: 10254427
    Abstract: A foreign object detection device in the present disclosure includes: a set sensor coil; and a determination device that detects a foreign object, based on voltage of the set sensor coil. A first sensor coil group in the set sensor coil includes unit sensor coils wound in a first winding direction and unit sensor coils wound in a second winding direction opposite to the first winding direction, these coils wound in the respective directions being electrically connected in series. Each unit sensor coil includes a coil conductor prescribing its external shape. Coil conductors are continuously and electrically connected in series. A part or the whole of the coil conductor forming the unit sensor coil in the first winding direction is a part or the whole of the coil conductor forming the unit sensor coil in the second winding direction.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 9, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Kazuhiro Adachi
  • Patent number: 10234494
    Abstract: A system for testing radio frequency (RF) characteristics of a wireless device includes a test fixture. The test fixture includes a base plate that receives a wireless device, and a back plate that receives an RF antenna and positions the RF antenna relative to the wireless device. Additionally, the system includes test equipment that in operation performs RF testing on the wireless device using the RF antenna to determine RF characteristics of the wireless device.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: March 19, 2019
    Assignee: FEDEX SUPPLY CHAIN LOGISTICS & ELECTRONICS, INC
    Inventors: Carlos Valmonte Jimenez, Jimmie Paul Partee, Fredrick Oluoch Onyango
  • Patent number: 10203378
    Abstract: This disclosure is directed to apparatuses, methods, and systems for detecting a capability of a power source connected to a device. For example, a device may include a standardized connector that may allow an unknown power source to provide power to the device. When a power source is connected with a device, a controller powers up and initiates power capability detection procedures. A ramping current sink begins drawing current from the power source at an initial value and increases that amount to a maximum current value. If a voltage on the device voltage bus falls below a voltage threshold during the ramping current sink operation, the current sink is disconnected and an indication is provided to the controller that the power source is underpowered. Further, a safety timer turns off the ramping current sink to prevent excessive heat generation.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: February 12, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Thomas Gang Wang, Jesse Liang, Hanh Thuy Phan
  • Patent number: 10203360
    Abstract: Disclosed embodiments relate to a power monitoring system. In some embodiments, the power monitoring system includes: a sampling device configured to measure patterns of energy consumed by loads included in the power system; an electric meter configured to measure an amount of second energy supplied from a system to the power system; a power supply configured to supply power stored therein or generate power to supply the power system and measure an amount of third energy supplied; and an external server configured to receive at least one of the patterns, the amount of the second energy and the amount of the third energy and analyze the patterns to acquire an amount of first energy for each of the loads. In some embodiments, the external server calculates at least one of the amount of the first, second and third energy.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: February 12, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Hun Park, Young-Gyu Yu, Hee-Tae Roh
  • Patent number: 10199822
    Abstract: A voltage balance control device and a voltage balance control method for a flying-capacitor multilevel converter are provided. A current direction forecasting unit acquires a voltage change amount of any selected flying capacitor of the flying-capacitor multilevel converter, and receives a feedback signal of two adjacent switch elements corresponding to the selected flying capacitor. A computing result is generated according to an average value or a cumulative value of the feedback signal in the adjusting period. After multiplication and/or division is performed on the voltage change amount and the computing result, the current direction can be forecasted according to the obtained sign. Consequently, the voltage balance of the flying capacitor of the flying-capacitor multilevel converter can be achieved.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: February 5, 2019
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Guoqiao Shen, Guojin Xu, Jinfa Zhang
  • Patent number: 10181847
    Abstract: An apparatus includes a voltage divider circuit including a plurality of series-connected capacitors and including an input terminal of one of the capacitors configured to receive a first voltage from a switch, and a ring node comprising the connection between at least two of the series-connected capacitors. The apparatus further includes a negative clamp circuit coupled to the ring node of the voltage divider circuit and a bias voltage node. The bias voltage node is configured to receive a bias voltage and responsive to a ring voltage on the ring node being less than the bias voltage, the negative clamp circuit is configured to clamp the ring voltage at a first threshold voltage. The apparatus also includes a peak detector circuit coupled to the ring node of the voltage divider circuit and configured to detect a peak amplitude of the ring voltage.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 15, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Rajdeep Bondade, Nathan Schemm, Rajarshi Mukhopadhyay
  • Patent number: 10156592
    Abstract: The present application relates to a circuit arrangement for sensing a current. The circuit arrangement comprises a current sense circuit configured to cause the sense current through a sense transistor, wherein the sense current is representative of a load current through a load transistor. The current sense circuit comprises a differential difference amplifier with a first differential input terminal pair coupled across the drain electrode and the source electrode of the load transistor and a second differential input terminal pair coupled across the drain electrode and the source electrode of the sense transistor. The current sense circuit is operable to force the same voltage difference value across the drain electrode and the source electrode of the load transistor as across the drain electrode and the source electrode of the sense transistor.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 18, 2018
    Assignee: NXP USA, Inc.
    Inventor: Denis Shuvalov
  • Patent number: 10152348
    Abstract: A job for which execution is requested is classified as one of classes. The amount of data to be written into a non-volatile storage device by execution of the job for which execution is requested is acquired. The efficiency index is calculated for each of the classes based on an execution evaluation value of the class and the amount of data to be written into the non-volatile storage device by execution of at least one job that has been already classified as the class. From among the classes, a class having an efficiency index of no greater than an efficiency threshold value is determined as the execution suspending class. When the job for which execution is requested belongs to the execution suspending class, execution of the job is suspended.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: December 11, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tomoki Oyasato
  • Patent number: 10139435
    Abstract: Systems and methods for measuring alternating current (AC) voltage of an insulated conductor (e.g., insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-galvanic contact (or “non-contact”) voltage measurement system includes a conductive sensor, an internal ground guard and a reference shield. A common mode reference voltage source is electrically coupled between the internal ground guard and the reference shield to generate an AC reference voltage which causes a reference current to pass through the conductive sensor. At least one processor receives a signal indicative of current flowing through the conductive sensor due to the AC reference voltage and the AC voltage in the insulated conductor, and determines the AC voltage in the insulated conductor based at least in part on the received signal.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: November 27, 2018
    Assignee: Fluke Corporation
    Inventors: Ronald Steuer, Paul A. Ringsrud, Jeffrey Worones, Peter Radda, Christian Karl Schmitzer
  • Patent number: 10115348
    Abstract: A pixel circuit, a driving method thereof and an organic electroluminescent display panel are disclosed. The pixel circuit comprises a driving transistor, a data write module, a compensation control module, a storage module and a light emitting control module. By means of cooperation of the above four modules, the working current of the driving transistor that drives the light emitting device to emit light can be unrelated to the threshold voltage of the driving transistor, which can avoid drift of the threshold voltage from influencing the light emitting device, thereby enabling the working current that drives the light emitting device to emit light to remain stable, so as to improve brightness uniformity of the displayed image.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: October 30, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Patent number: 10031189
    Abstract: This disclosure is directed to apparatuses, methods, and systems for detecting a capability of a power source connected to a device. For example, a device may include a standardized connector that may allow an unknown power source to provide power to the device. When a power source is connected with a device, a controller powers up and initiates power capability detection procedures. A ramping current sink begins drawing current from the power source at an initial value and increases that amount to a maximum current value. If a voltage on the device voltage bus falls below a voltage threshold during the ramping current sink operation, the current sink is disconnected and an indication is provided to the controller that the power source is underpowered. Further, a safety timer turns off the ramping current sink to prevent excessive heat generation.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: July 24, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Thomas Gang Wang, Jesse Liang, Hanh Thuy Phan
  • Patent number: 10019938
    Abstract: An organic light emitting diode pixel driving circuit and a display device are disclosed. The circuit includes an external circuit and intra-pixel circuits, which each include a signal loading module, a driving transistor, and an organic light emitting diode. The external circuit loads a data signal to the driving transistors of the intra-pixel circuits during a signal loading phase, and each of the signal loading modules generates a drive signal based on a signal at the source of the driving transistor and on the threshold voltage thereof, to store the drive signal, to load the drive signal to the gate of the driving transistor during the signal loading phase, and to control the driving transistor by the drive signal stored in the signal loading phase and the signal at the source of the driving transistor to cause the organic light emitting diode to emit light during a light emitting phase.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: July 10, 2018
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Hanyu Gu
  • Patent number: 10010668
    Abstract: An embodiment of a fluid infusion device includes a fluid pump mechanism having a rotor and a stator. The rotor includes a reference surface and a cam element rising from the reference surface. The stator includes a cam element having a stator cam surface. The cam elements cooperate to axially displace the rotor as a function of rotation. A biasing element provides force to urge the cam elements together. A drive motor is coupled to actuate the rotor to pump medication fluid from a fluid cartridge module to a body, via a subcutaneous conduit. A force sensor is coupled to the rotor to generate output levels in response to force imparted thereto. The force sensor cooperates with a detection circuit that obtains and processes the output levels to detect occlusions in a fluid path downstream of the fluid pump mechanism.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: July 3, 2018
    Assignee: Medtronic MiniMed, Inc.
    Inventor: R. Marie Tieck
  • Patent number: 10006949
    Abstract: The frequency-mask trigger unit comprises n trigger machines, where n?2, in order to evaluate a total of n signal paths. In this context, the n trigger machines are connected to an evaluation unit. For this purpose, at least one trigger range is transferred to the n trigger machines. Moreover, a plurality of result vectors of a signal under analysis transformed into the frequency domain are transferred via the n signal paths to the n trigger machines. Finally, each of the n trigger machines checks whether at least one of the plurality of result vectors of the signal under analysis transformed into the frequency domain infringes the at least one trigger range.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: June 26, 2018
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Nico Toender, Markus Reiband, Bernhard Nitsch
  • Patent number: 10007458
    Abstract: A solid-state storage device (SSD) controller is provided for use with an SSD. The SSD includes a plurality of memory cells, such as non-volatile memory (NVM) cells. The SSD controller comprises a processor and a memory storing statements and instructions for execution by the processor to perform a method of configuring the memory cells. In a dynamic configuration implementation in which at least a subset of the NVM cells are configured in a first bit retention mode, the method includes: monitoring data activity in relation to the SSD; and dynamically reconfiguring the subset of the NVM cells in a second bit retention mode based on the monitored data activity, such as whether data traffic comprises a majority of read activity or write activity. In a static configuration implementation, the method includes receiving at least one performance characteristic for the NVM cells; and configuring the subset of the NVM cells in a first bit retention mode based on the received at least one performance characteristic.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 26, 2018
    Assignee: Microsemi Solutions (U.S.), Inc.
    Inventors: Stephen Bates, Rahul Advani
  • Patent number: 9968296
    Abstract: A wearable socio-biosensor device can include a plurality of sensors to detect bio-behavioral data of a subject, social data related to a proximity of the subject to other persons wearing socio-biosensor devices and bio-behavioral data measured during the time the subject is in close proximity to other persons, and environmental data related to the subject's environment. The socio-biosensor device can also include a body portion that includes: a non-transitory memory to store the bio-behavioral data, the social data, and the environmental data; a wireless transceiver to communicate with another device based on at least one of the bio-behavioral data, the social data, and the environmental data; and a rechargeable battery. The socio-biosensor device can also include an attachment mechanism that facilitates attachment of the body portion to the subject (e.g., attached to the subject's wrist). At least one of the plurality of sensors can be embodied in the attachment mechanism.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: May 15, 2018
    Assignee: Case Western Reserve University
    Inventor: Kiju Lee
  • Patent number: 9878095
    Abstract: A fluid infusion device includes a pump having a rotor and a stator. A rotor cam element rises from a reference surface of the rotor. The stator includes a cam element having a stator cam surface. The cam elements axially displace the rotor as the rotor revolves. Inlet and outlet valves open and close as a function of angular and axial position of the rotor. A motor actuates the rotor to pump fluid to a body, via a subcutaneous conduit. First and second contact elements are located on the rotor. A sensing element on the stator cooperates with a detection circuit to detect when the sensing element makes contact with the first sensor contact element and the second sensor contact element. The detection circuit monitors a detection signal obtained from the sensing element to determine an operating condition of the fluid pump mechanism.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: January 30, 2018
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Juan M. Alderete, Jr., Matthew William Yavorsky, Jacob E. Pananen
  • Patent number: 9863988
    Abstract: One embodiment includes and I/O bus including a signal line coupled to a signal source and multiple line switches, each line switch to couple a corresponding I/O port to the signal line. Switch logic coupled to the I/O bus may programmatically switch the multiple line switches to couple at least one of the signal source and measurement circuitry to the respective I/O port.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: January 9, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventor: Dennis R. Seguine
  • Patent number: 9846196
    Abstract: A method and system of counting coulombs drawn from a power source by a load. A reference current source regulates the current drawn by the load at any given time to be either zero or a predetermined fixed amount. A comparator controls a time the switch is closed and open. When the switch is closed, coulombs are allowed to be drawn from the power source, and prevented to be drawn when the switch is open. An oscillator generates a clock signal during the time the switch is closed. A counter counts the number of clock cycles from the clock signal during the time the switch is closed. The count is provided as a signal at a second output of the coulomb counter.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: December 19, 2017
    Assignee: Linear Technology Holding LLC.
    Inventor: Mark Robert Vitunic
  • Patent number: 9838023
    Abstract: A slow-clock calibration method, a slow-clock calibration unit, a clock circuit and a mobile communication terminal are provided. The calibration method includes: obtaining a current temperature of the crystal; searching a unique frequency-divide coefficient corresponding to the current temperature from a preset data base; if the coefficient is found in the data base, inputting the unique coefficient into a frequency divider; if the coefficient is not found in the data base, obtaining an actual sleep length of the mobile communication terminal, if the actual sleep length is not equal to a required sleep length, calculating a required frequency-divide coefficient and updating the data base with the required frequency-divide coefficient, and if the actual sleep length of the mobile communication terminal is equal to the required sleep length, updating the data base with a current frequency-divide coefficient. Accordingly, slow-clock calibration is realized with reduced crystal costs.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: December 5, 2017
    Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
    Inventors: Geming Wu, Zhi Zhang
  • Patent number: 9818466
    Abstract: Slope detection systems and methods are provided that monitor magnetic tunnel junction (MTJ) resistance switching. A low-overhead, sample-and-hold circuit can be used. Slope detection techniques can reduce or eliminate bit-to-bit process variation, thereby reducing or eliminating variation in oxide thickness. In addition, the need for data and reference current can be obviated compared to related art techniques, thereby increasing sensing robustness.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: November 14, 2017
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: Swaroop Ghosh, Seyedhamidreza Motaman
  • Patent number: 9806858
    Abstract: Method and apparatus for controlling length of aggregation frames in a wireless network is provided. The method includes: obtaining a noisy level of a channel based on the number of first data received by a first terminal in a first period, the first terminal being a STA or AP in the wireless network, and the first data include aggregation frames or non-aggregation frames; and determining length of an aggregation frame to be transmitted by the first terminal in a second period based on the noisy level, where the second period is following and adjacent to the first period along a time axis. The first terminal may detect the noisy level and select the length of the aggregation frame based on the noisy level. Thus, inter-frame collision and interference in the channel may be reduced, channel resources may be well utilized, and a throughput rate may be improved in real time.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: October 31, 2017
    Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
    Inventor: Xin Xie
  • Patent number: 9793716
    Abstract: Techniques are disclosed herein for improved power meter disconnect switch operation, which may include opening and/or closing of the disconnect switch. In particular, for reasons such as reduction of electromechanical stress on the disconnect switch, the disconnect switch may be operated based, at least in part, on a voltage at the load side of the disconnect switch. For example, in some cases, the disconnect switch may be opened slightly before a zero crossover of a waveform corresponding to the load side voltage. As another example, in some cases, the disconnect switch may be closed slightly before or slightly after a zero crossover of a waveform corresponding to the load side voltage.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: October 17, 2017
    Assignee: Elster Solutions, LLC
    Inventor: Kenneth C. Shuey
  • Patent number: 9760103
    Abstract: Aspects of the disclosure include an integrated circuit that includes a first circuit, a first performance detector, and a first regulator. The first circuit is configured to receive a first regulated voltage from a first voltage supply line disposed on the integrated circuit. The first performance detector includes a first speed monitor disposed adjacent to the first circuit, and the first performance detector is configured to generate a first control signal based on a first speed detection result from the first speed monitor. The first speed detection result corresponds to measuring an operational speed of the first circuit. The first regulator is configured to receive a global supply voltage from a power rail and output the first regulated voltage based on the global supply voltage and the first control signal.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: September 12, 2017
    Assignee: Marvell Israel (M.I.S.L) Ltd.
    Inventor: Eitan Rosen
  • Patent number: 9753065
    Abstract: Methods and systems for a wideband CMOS RMS power detection scheme may comprise: a first circuit including a first metal oxide semiconductor (MOS) transistor having a gate for receiving a radio frequency (RF) signal and having a drain for outputting a first current that is proportional to a square of a voltage of the RF signal in response to receiving the RF signal; and a second circuit connected to the first circuit, the second circuit comprising a second MOS transistor biased in a triode region and having a source for receiving the first current from the first circuit. The second circuit may output a voltage proportional to a power of the RF signal received by the first circuit, the output voltage being a function of the first current and a channel resistance of the second MOS transistor.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: September 5, 2017
    Assignee: Entropic Communications LLC
    Inventor: Sameer Vora
  • Patent number: 9749799
    Abstract: A method of determining a distance between devices, including receiving, by a device, a first signal from a target device, the first signal being associated with a first intensity; receiving, from a reference device located at a predetermined distance from the target device, intensity information corresponding to a second intensity associated with a second signal received by the reference device from the target device; and determining a distance between the device and the target device based on the first intensity and the intensity information corresponding to the second intensity.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: August 29, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho-sik Cho, Jianxun Ji, Zili Chen, Hyun-cheol Park, Won-suck Lee
  • Patent number: 9709609
    Abstract: The systems and methods of the present disclosure use measurement circuitry that includes first and second circuits, a selecting circuit, a determination circuit, and a setting circuit. Each of the first and second circuits measures voltage or current sensed by a sensor. The selecting circuit selects the first circuit to provide the measured voltage or current values. The determination circuit determines whether the measured voltage or current values reach a predetermined level. The setting circuit changes a setting of the second circuit from a first setting to a second setting if the measured voltage or current values reach the predetermined level. The selecting circuit selects the second circuit to provide the measured voltage or current values when a first predetermined time elapses after changing the setting of the second circuit. The selecting circuit also changes a setting of the first circuit from the first setting to the second setting after selecting the second circuit.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 18, 2017
    Assignee: COVIDIEN LP
    Inventor: Dean C. Buck
  • Patent number: 9702770
    Abstract: A signal compensation unit includes an adjustment section configured to adjust temporal variation characteristics of a detection signal obtained by a bend sensor. The adjustment section includes: a signal amplifier including a positive input terminal, a negative input terminal, and an output terminal, and amplifying the detection signal; and a resistor for adjustment of the temporal variation characteristics disposed between the positive input terminal and the negative input terminal of the signal amplifier.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: July 11, 2017
    Assignee: Sony Corporation
    Inventor: Osamu Ito
  • Patent number: 9703395
    Abstract: Disclosed herein is an accurate and efficient, yet non-obtrusive system and method (using same) for detecting interpersonal touch, such as a high-five, which is prevalent in people's daily lives, so as to promote everyday interactions at diverse settings. Based on ubiquitous computing technology, one embodiment of the system for detecting interpersonal touch comprises a pre-motion filter for filtering a pre-motion prior to the interpersonal touch, a sensor for sensing electrical properties of skin, an evaluator for analyzing and determining the interpersonal touch based on the pre-motion and the electrical properties of skin, and a communicator for communicating information analyzed by the evaluator. Other embodiments are described and shown.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 11, 2017
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE & TECHNOLOGY (KAIST)
    Inventors: Junehwa Song, Yuhwan Kim, Seungchul Lee, Inseok Hwang, Hyunho Ro, Youngki Lee, Miri Moon
  • Patent number: 9651594
    Abstract: A battery remaining power predicting device is provided which is equipped with a first voltage detection portion which detects the voltage of a battery, a second voltage detection portion which detects a voltage across a current sense resistor for detecting a load current, a controller which predicts the remaining power of the battery, based on the values of the voltages detected by the first and second voltage detection portions, and a constant current source which allows a constant current to flow through the current sense resistor. The controller is configured to calculate a resistance value of the current sense resistor, based on the detected voltage of the second voltage detection portion when the load current flows, and the detected voltage of the second voltage detection portion when the load current and the constant current flow.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: May 16, 2017
    Assignee: SII SEMICONDUCTOR CORPORATION
    Inventor: Eiki Imaizumi
  • Patent number: 9602162
    Abstract: A method for transmitting data in a direction of transmission of a clock signal, wherein positive and negative edges of the clock signal are transmitted by pulses with opposite polarity, wherein the polarity of the pulses is not inverted when no data is transmitted, and wherein the polarity of at least one pulse is inverted when data is transmitted.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: March 21, 2017
    Assignee: INFINEON TECHNOLOGIES AG
    Inventor: Martin Feldtkeller
  • Patent number: 9588151
    Abstract: A voltage and/or current sensing device for low-, medium- or high voltage switching devices is disclosed as a constructively enhanced measuring device with high performance for use in switching devices. The sensing device can include a first voltage sensing part, a second voltage sensing part and a current sensing part all arranged in a same common single housing separated, from the switching device, in a way that an output wire from the first voltage sensing part, for sensing voltage at an upper terminal of the switching device, is located close to the current sensing part, the output wire being applied with an insulating cover, and mechanically fixed to the current sensor part, and/or the output wire being implemented in an isolation body, and only located near to the current sensing part.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: March 7, 2017
    Assignee: ABB Schweiz AG
    Inventors: Radek Javora, David Raschka
  • Patent number: 9503078
    Abstract: A circuit comprises: a first capacitor; a second capacitor; a MOS (metal oxide semiconductor) transistor; and an operational amplifier, wherein the first capacitor is configured to couple to the second capacitor via the MOS transistor; the operational amplifier is configured to receive a voltage at the first capacitor and output a control voltage; and the MOS transistor is configured to be controlled by the control voltage.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: November 22, 2016
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Chia-Liang (Leon) Lin
  • Patent number: 9490742
    Abstract: A motor control apparatus includes an A/D converter to apply A/D conversions to a motor current signal and a resolver output signal, respectively; a processor configured to: detect a fault of an R/D converter, by comparing a motor rotation angle calculated by the R/D converter from the resolver output signal, and a motor rotation angle calculated based on the current signal; permit the A/D converter to apply the A/D conversion to the resolver output signal at a peak timing of a reference signal when a first time obtained by subtracting a process time required for a control process of the motor from a feedback cycle, is longer than a second time having passed since a control end timing when the control process has ended until the peak timing, or inhibit the A/D converter from applying the A/D conversion when the first time is not longer than the second time.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: November 8, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Toshihiko Hatanaka
  • Patent number: 9466087
    Abstract: Examples of meter data management testing are disclosed. In one example implementation according to aspects of the present disclosure, a computing device may include one or more processors, a memory for storing machine readable instructions, and a data store. The computing device may further include a meter data management testing module stored in the memory and executing on at least one of the one or more processors to test a meter data management system using a data set of representative metering data and a user-generated test scenario specifying a plurality of metering parameters.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: October 11, 2016
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Martin Arlitt, Manish Marwah, Amip J. Shah
  • Patent number: 9465424
    Abstract: In a particular embodiment, an electronic device includes a direct current (DC) voltage source coupled to a DC interface. The electronic device includes a receiver sense circuit configured to detect a connection of the electronic device to a sink device via a connector without consuming power from the DC voltage source. The electronic device further includes a controller coupled to a hot plug detect (HPD) interface. The controller is configured to receive a detection signal from the receiver sense circuit, selectively control a switch to enable and disable the DC voltage source based on the detection signal, detect an HPD signal at the HPD interface after enabling the DC voltage source, and disable the receiver sense circuit in response to detecting the HPD signal.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: October 11, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Cheng Zhong, Nam Van Dang, Hung Q. Vuong, Xiaohua Kong
  • Patent number: 9435684
    Abstract: A vibration data collection system performs an integration or differentiation process on incoming digitized vibration data in real time. The system uses a digital Infinite Impulse Response (IIR) filter running at the input data rate to provide the integration or differentiation function. With this approach, the system reduces hardware complexity and data storage requirements. Also, the system provides the ability to directly integrate or differentiate stored time waveforms without resorting to FFT processing methods.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 6, 2016
    Assignee: Computational Systems, Inc.
    Inventor: Joseph C. Baldwin
  • Patent number: 9429625
    Abstract: An analog test network includes a conductor. The conductor is coupled to provide a first analog signal from a circuit under test to an analog-to-digital converter circuit. The analog-to-digital converter circuit is operable to generate a first digital signal based on the first analog signal. A control circuit is operable to generate a second digital signal based on the first digital signal. A digital-to-analog converter circuit is operable to generate a second analog signal based on the second digital signal. The conductor is coupled to provide the second analog signal from the digital-to-analog converter circuit to the circuit under test.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: August 30, 2016
    Assignee: Altera Corporation
    Inventors: Weiqi Ding, Sergey Shumarayev