By Voltage Or Current Measuring Patents (Class 324/522)
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Patent number: 10172053Abstract: A radiographic image capturing system includes: a radiographic image capturing apparatus which wirelessly transfers a signal value read from each of a plurality of radiation detecting elements; a channel switch controlling device capable of switching a channel used for wirelessly transferring the signal value from the radiographic image capturing apparatus to another channel; a notifying device which gives a notice to an operator who operates the radiographic image capturing system; and a display device which displays a radiographic image generated based on the signal value transferred from the radiographic image capturing apparatus, wherein the notifying device notifies an operator of the fact that the channel is being switched, at least once, while the radiographic image capturing apparatus is switching the channel.Type: GrantFiled: April 11, 2018Date of Patent: January 1, 2019Assignee: KONICA MINOLTA, INC.Inventor: Takanori Ando
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Patent number: 10162015Abstract: Embodiments of the disclosure relate to systems and methods for determining a fault location in a three-phase series-compensated power transmission line system by using symmetrical components-based formulas that describe various voltage and current relationships. The voltage and current relationships can be derived using a synchronous measurement procedure that is concurrently executed at a sending end and a receiving end of the first series-compensated power transmission line system. Furthermore, determining the fault location in accordance with certain embodiments of the disclosure can eliminate one or more of a need to calculate an impedance value of any of the series capacitors or the series capacitor protection elements that are a part of the three-phase series-compensated power transmission line system, a need to monitor any of the series capacitor protection elements, and a need to measure a voltage drop across any of the series capacitors.Type: GrantFiled: March 29, 2016Date of Patent: December 25, 2018Assignee: General Electric CompanyInventors: Zhihan Xu, Tirath Bains, Tarlochan Sidhu, Mohammad Reza Dadash Zadeh
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Patent number: 10120012Abstract: A method and an apparatus for fault detection in a mixed configuration power transmission line including a plurality of sections arranged between one end of the transmission line and the other end of the transmission line and including at least one overhead line section and at least one cable section are disclosed. Based on a comparison travelling wave voltage or current time derivatives at the one end and the other end of the power transmission line with selected threshold values, it is determined if there is a fault occurring in at least one cable section of the power transmission line. Embodiments utilize amplification of travelling wave voltages and/or currents which may occur at junctions between a cable section and an adjacent overhead line section in determining if the fault occurs in a cable section of the power transmission line.Type: GrantFiled: May 5, 2015Date of Patent: November 6, 2018Assignee: ABB SCHWEIZ AGInventors: Arkadiusz Burek, Jianping Wang, Jiuping Pan, Reynaldo Nuqui, YouYi Li
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Patent number: 10082569Abstract: A system for remote monitoring a network of distributed antennas. The system including at least one antenna electrically coupled to a radio-frequency (RF) transmission line, and a monitoring module electrically coupled to the RF transmission line, the monitoring module configured to receive a direct-current (DC) coded signal via the RF transmission line and compare the DC coded signal to at least one code saved in a memory of the monitoring module to determine a status associated with the at least one antenna.Type: GrantFiled: June 28, 2017Date of Patent: September 25, 2018Assignee: FIRECOM, INC.Inventor: Patrick Adamo
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Patent number: 10074549Abstract: In a method for acquiring data indicating an electrostatic capacitance between a focus ring and a measuring device includes a disc-shaped base substrate, sensor units arranged along an edge of the base substrate and a circuit substrate mounted on the base substrate, a processor acquires one or more first data sets respectively including a plurality of digital values indicating an electrostatic capacitance of a corresponding sensor unit. The measuring device is transferred to a region on the mounting table surrounded by the focus ring. The processor acquires second data sets when one or more digital values or an average of the digital values included in each of said one or more first data sets exceeds a first threshold. The processor stores measurement data including the respective second data sets or averages of the digital values of each of the second data sets. The measuring device is unloaded from the chamber.Type: GrantFiled: March 21, 2017Date of Patent: September 11, 2018Assignee: TOKYO ELECTRON LIMITEDInventors: Kippei Sugita, Tomohide Minami
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Patent number: 10060821Abstract: A detection apparatus arranged to detect defects within a flexible pipe body. The detection apparatus comprises an electrical power supply and a first meter. The electrical power supply is arranged to couple between, and to supply current to, first and second electrically conductive members extending at least partially along the length of a flexible pipe body and electrically isolated from one another except for being electrically connected at a point remote from the power supply. The first meter is arranged to detect variation between the current flowing in each electrically conductive member. Detected variation is indicative of a pipe body defect causing an Earth fault along one of the electrically conductive members. A corresponding method, a pipeline apparatus including the detection apparatus and a method of forming the pipeline apparatus are also disclosed.Type: GrantFiled: October 23, 2014Date of Patent: August 28, 2018Assignee: GE Oil & Gas UK LimitedInventors: John Cross McNab, Geoffrey Stephen Graham, Philip Michael Hunter Nott
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Patent number: 10024888Abstract: A data receiving device may include an envelope detector that may include first and second inputs configured to receive a differential input signal, a first pair of detectors coupled to the first input and configured to generate first and second detector outputs, and a second pair of detectors coupled to the second input and configured to generate third and fourth detector outputs. The envelope detector may also include a logic circuit configured to generate a reset based upon the first and third detectors. The data receiving device may also include a receiver circuit coupled to the envelope detector and configured to generate an output based upon the second and fourth detectors along with the reset, and a first bit detection circuit coupled to the receiver circuit.Type: GrantFiled: June 9, 2017Date of Patent: July 17, 2018Assignee: STMicroelectronics International N.V.Inventors: Daljeet Kumar, Tapas Nandy, Surendra Kumar
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Patent number: 10027493Abstract: A PoE power utilization method constituted of: detecting a first function of a voltage between a current path node and a current return path node during a first time period and during a second time period, the second time period different than the first time period; sensing a second function of the magnitude of a current flowing through the current path during the second time period; responsive to the detected first time period voltage function, the detected second time period voltage function and the sensed second time period current magnitude function, determining a third function of a resistance seen by the current path; and outputting an indication of the determined resistance function.Type: GrantFiled: February 15, 2016Date of Patent: July 17, 2018Assignee: Microsemi P.O.E. Ltd.Inventor: Yair Darshan
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Patent number: 10017157Abstract: The vehicle security system is a personal security system adapted for use with an automobile. The vehicle security system is signaling system that is initiated through the actuation of a switch located within the interior of the automobile. Once activated, the vehicle security system initiates a security procedure that sends a continuous stream of messages to an appropriate authority. Messages sent through the security procedure contain identification information regarding the vehicle, the updated GPS coordinates of the vehicle, and a file containing an image of the current security situation. The vehicle security system further comprises a kill switch that allows the appropriate authority to disable the automobile. The vehicle security system comprises a logic module, a communication module, a GPS module, a plurality of activation switches, a plurality of cameras, and a kill switch.Type: GrantFiled: February 14, 2017Date of Patent: July 10, 2018Inventor: Jackie Walden
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Patent number: 10012563Abstract: A design of optical testing device or system for fiber arrays is disclosed. According to one aspect of the invention, an array of light sources and an array of detectors are disclosed. One of the light sources is controlled to be turned on to test a designated fiber in an array of fibers being tested for connection issues. A microcontroller is configured to determine which one of the detectors is detecting a light beam from one of the light sources, and mark a channel of the array of fibers accordingly depending on if the one of the detectors is supposed to detect the light beam; if another one of the detectors detects the light beam; or if none of the detectors detects the light beam.Type: GrantFiled: July 18, 2012Date of Patent: July 3, 2018Assignee: Alliance Fiber Optic Products, Inc.Inventors: Xinzhong Wang, Yao Li
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Patent number: 9983228Abstract: Embodiments of the present invention provide an improved two-cable connection system for connecting electrical test instrumentation to a device under test (DUT). In one embodiment, a single pair of equal-length triaxial cables each has a desired characteristic impedance. Each cable has a center connecter, intermediate conductor, and outer conductor. The proximal end of each cable is connected to the test instrumentation, and the distal ends are located at the DUT. At the distal end, the center conductors are connected to the DUT, the intermediate conductors are allowed to float, and the outer conductors are connected to each other. The proximal end of each cable is connected to the device using an appropriate connection for the test that will be performed. This allows the test instrumentation to perform different types of tests without changing connections to the DUT.Type: GrantFiled: September 4, 2015Date of Patent: May 29, 2018Assignee: Keithley Instruments, LLCInventors: Wayne C. Goeke, Gregory Sobolewski
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Patent number: 9973988Abstract: A radiographic image capturing system includes: a radiographic image capturing apparatus which wirelessly transfers a signal value read from each of a plurality of radiation detecting elements; a channel switch controlling device capable of switching a channel used for wirelessly transferring the signal value from the radiographic image capturing apparatus to another channel; a notifying device which gives a notice to an operator who operates the radiographic image capturing system; and a display device which displays a radiographic image generated based on the signal value transferred from the radiographic image capturing apparatus, wherein the notifying device notifies an operator of the fact that the channel is being switched, at least once, while the radiographic image capturing apparatus is switching the channel.Type: GrantFiled: January 25, 2017Date of Patent: May 15, 2018Assignee: KONICA MINOLTA, INC.Inventor: Takanori Ando
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Patent number: 9972989Abstract: An optical voltage sensor for measuring voltage on an underground power line or for use in other scenarios in which access to a conductor is available through a blind hole. The optical voltage sensor includes a light modulating member, such as a Pockel's crystal. A reflective, conductive member is positioned at one end of the light modulating member and another conductive member is positioned at an opposed end. A voltage capacitively coupled to the reflective conductive member induces a voltage across the light modulating member, thereby impacting the amount of modulation. A beam of light is directed through the crystal and reflected back out of the crystal, where the amount of modulating can be measured. The amount of modulation indicates a measured voltage, and can be transmitted to a monitoring station where processing can determine the status of the power grid or generate other results based on the measured voltage.Type: GrantFiled: March 31, 2015Date of Patent: May 15, 2018Assignee: ACLARA TECHNOLOGIES LLCInventor: Gregory M. Nulty
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Patent number: 9950517Abstract: Measuring an inkjet nozzle may include taking at least one impedance measurement after the firing command is sent to detect the presence of a drive bubble and taking another impedance measurement to detect a collapse of the drive bubble.Type: GrantFiled: June 1, 2016Date of Patent: April 24, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Eric T. Martin, Andrew L. Van Brocklin, David Maxfield
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Patent number: 9948420Abstract: Systems and methods for time aligning time-stamped measurements using a voting scheme are disclosed. The system and method filter incoming measurements based on whether the time-stamped measurements fall within a defined time window. In response to determining that the time stamp falls within the defined time window, the time-stamped measurement is added to a time slice corresponding with the time stamp. In response to determining that the time-stamped measurement does not fall within the defined time window, the time window is re-established based on a voting scheme.Type: GrantFiled: April 15, 2016Date of Patent: April 17, 2018Assignee: Schweitzer Engineering Laboratories, Inc.Inventor: Aaron E. Wright
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Patent number: 9941684Abstract: A quadrilateral distance module may be used to detect faults in an electrical power system. A resistive coverage of the quadrilateral distance module may be defined by an adaptive resistance blinder. Tilt of the adaptive reactance element and resistance blinders may be limited. When an angle between the sequence-component based, current polarizing quantity and the element loop current does not exceed a predetermined angle threshold, the sequence-component based polarizing quantity may be used. Otherwise, the element loop current may be used to limit the tilt. Fault detection may comprise comparing both the adaptive resistance blinders for forward and reverse load flow conditions to power system stimulus and detecting a fault when the stimulus satisfy either blinder.Type: GrantFiled: May 12, 2015Date of Patent: April 10, 2018Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Jorge Fernando Calero, Armando Guzman-Casillas
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Patent number: 9939481Abstract: Embodiments of the present disclosure include a method of operating an arc fault detection system, an arc fault detection system, and a system. An embodiment is a method of operating an arc fault detection system coupled to a power line, the method including determining one or more arc fault detection windows in power line signals on the power line, the power line signals comprising a communication signal and an alternating current (AC) power signal. The method further includes receiving the power line signals from the power line during the one or more arc fault detection windows, and performing arc fault detection processing on the received power line signals.Type: GrantFiled: May 23, 2017Date of Patent: April 10, 2018Assignees: STMicroelectronics S.r.l., STMicroelectronics, Inc.Inventors: Oleg Logvinov, Roberto Cappelletti, Mauro Conti
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Patent number: 9934621Abstract: This disclosure is directed to techniques for automated transmission of surveillance incident data or other anomalous incident data from an aircraft via a preferred transmission mode. An example method includes detecting, by a processing device onboard an aircraft, an anomalous incident involving the aircraft that qualifies for reporting relative to a set of anomalous incident reporting criteria. The method further includes identifying, by the processing device, data onboard the aircraft relevant to the anomalous incident. The method further includes detecting that the aircraft is in a status that makes available a selected data transmission mode for transmitting the data relevant to the anomalous incident. The method further includes communicating the data relevant to the anomalous incident to a transmission system for transmission from the aircraft via the selected data transmission mode in response to detecting that the aircraft is in the status that makes available the selected data transmission mode.Type: GrantFiled: January 17, 2017Date of Patent: April 3, 2018Assignee: Honeywell International Inc.Inventors: Scott R. Gremmert, Stephen Wilmot
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Patent number: 9933472Abstract: A process to check a connection between a battery (2) supplying a low-voltage network (1) of a motor vehicle (12), the voltage of which is less than the voltage of a high-voltage network (6) of the motor vehicle (12), and the low-voltage network (1); wherein a DC voltage converter (5), which is configured for exchanging electrical power between the high-voltage network (6) and the low-voltage network (1), connects the high-voltage network (6) to the low-voltage network (1); wherein a DC voltage converter (5) modulates the output voltage into the low-voltage network at a modulation frequency; wherein the current hereby applied and the voltage hereby applied are measured by the battery (2), and a resistance value is determined and evaluated with respect to at least one connection criterion, according to which a connection fault is determined when at least one connection criterion is not fulfilled.Type: GrantFiled: February 5, 2015Date of Patent: April 3, 2018Assignee: Audi AGInventors: Karsten Barth, Rolf Naumann, Thomas Hackner
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Patent number: 9903917Abstract: A system includes a proportional-integrated-derivative (PID) regulator. The system also includes a fault detection unit. The fault detection unit is for receiving at least two outputs from the PID regulator. The at least two outputs include at least two rotor reference frame (D-Q) currents. The fault detection unit is further for generating a detection signal based on the at least two rotor reference frame currents. The detection signal identifies a fault based on the fault detection signal amplitude value based on the magnitudes of the amplitudes for each of the at least two rotor reference frame D-Q currents. The fault detection unit is for identifying an existence of a permanent magnet motor fault based on a comparison between the fault detection signal amplitude value and an amplitude threshold value. Further the fault localization signature is utilized to locate the location of the fault.Type: GrantFiled: October 7, 2014Date of Patent: February 27, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Sandun Shivantha Kuruppu
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Patent number: 9894623Abstract: Aspects and features are directed to an uplink integrity detection sub-system. In one aspect, a distributed antenna system is provided that includes a remote antenna unit that communicates with wireless devices in a coverage area, additional remote antenna units that communicate with wireless devices in additional coverage areas, and a unit that communicates with the remote antenna unit and the additional remote antenna units. The unit includes a distributed antenna system controller. The distributed antenna system controller can determine that an undesirable signal component having a power level exceeding a threshold power is communicated via an uplink path from the remote antenna unit. The distributed antenna system controller can also minimize an impact of the undesirable signal component on the additional coverage areas of the additional remote antenna units. Minimizing the impact can include modifying the gain of the uplink path over which the undesirable signal component is communicated.Type: GrantFiled: September 14, 2012Date of Patent: February 13, 2018Assignee: Andrew Wireless Systems GmbHInventors: Alfons Dussmann, Samuele Brighenti
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Patent number: 9868282Abstract: A control apparatus including a power supply unit configured to supply electric power, comprises: a capacitor connected to a power supply line extending from the power supply unit to a printhead; a discharge circuit configured to release charge stored in the capacitor; and a control unit configured to control a current value during a discharge operation by the discharge circuit, such that the current value increases as a voltage value of the capacitor decreases.Type: GrantFiled: May 12, 2016Date of Patent: January 16, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Shinya Ishikawa, Yasufumi Ogasawara, Hisao Okita, Takashi Sakai, Toru Oshika
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Patent number: 9851390Abstract: A method for detecting and locating faulty line on the distribution network circuit based on full waveform information, which uses the current data on the fault occurrence and whole-process operation of the compensation device to effectively solve such common problems as low fault current, poor reliability and low sensitivity in case of single-phase grounding fault to the low-current system through precise GPS synchronization. It improves the sensitivity and reliability of the grounding fault detection, which does not interfere with the system and is applicable to high-resistance grounding.Type: GrantFiled: October 31, 2014Date of Patent: December 26, 2017Assignee: SHANGHAI JIAO TONG UNIVERSITYInventors: Yadong Liu, Gehao Sheng, Jiejie Dai, Jiamei Liu, Yun Hu, Xiaolei Xie, Yong Qian, Yue Hu, Xiuchen Jiang
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Patent number: 9853445Abstract: A systems and methods for monitoring an electrical power distribution grid including a plurality of sensor devices forming a sensor wireless network are disclosed. Each sensor device monitors and measures attributes of line current for an associated electrical power distribution line at a selected location. A sensor device detects a fault on the branch of the power grid, determines if the one of the plurality of sensors is at a tail end, sends a fault detected message to an adjacent upstream sensor, or otherwise sends a sleep command to an adjacent downstream sensor from the tail end sensor to disable transmission.Type: GrantFiled: April 30, 2015Date of Patent: December 26, 2017Assignee: MAPLE MICROSYSTEMS INC.Inventors: Mohamed Samy Hosny, Peter Goharis
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Patent number: 9841451Abstract: A system for detecting faults in an electric vehicle charging system includes an electric vehicle supply equipment (EVSE) coupled to an electric vehicle via a cable. The EVSE includes a first charging circuit interrupting device (CCID) configured to detect faults at let-go levels between an ungrounded conductor in the cable and an external (or unintended) ground. The first CCID is also configured to detect faults above leakage current levels between a chassis of the vehicle and a power storage device of the vehicle. A second CCID is included in the cable or the vehicle to detect faults at let-go levels between an ungrounded conductor in the cable and the chassis. The system maintains grounding continuity between the electric vehicle and ground. The system thus provides protection at let-go levels while allowing a leakage current in the vehicle to be detected at a higher level for nuisance trip avoidance.Type: GrantFiled: March 15, 2013Date of Patent: December 12, 2017Assignee: SCHNEIDER ELECTRIC USA, INC.Inventors: Paul Andrew Reid, Jeffrey Owen Sharp
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Patent number: 9837957Abstract: The diagnostic method for a photovoltaic power system includes: a step of storing measured values of voltage and current outputted by a photovoltaic cell array, and identifying a first time period and a second time period with a lower solar radiation amount than in the first time period; a step of calculating the number of faulty photovoltaic cells on the basis of the measured values in the first time period; a step of calculating the number of faulty photovoltaic cells on the basis of the measured values in the second time period; and a step of comparing the number of faulty photovoltaic cells as calculated for the first time period, and the number of faulty photovoltaic cells as calculated for the second time period, and identifying a series resistance of the photovoltaic cells and a value indicating a degree of loss resulting from a fault in the photovoltaic cells.Type: GrantFiled: April 21, 2016Date of Patent: December 5, 2017Assignee: Hitachi, Ltd.Inventors: Toru Kouno, Atsuhiko Kubo, Yuuichi Nagayama, Tomoharu Nakamura
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Patent number: 9829539Abstract: A ground fault circuit interrupter (GFCI) including separable contacts, a ground fault detection circuit structured to detect a ground fault based and to output a trip signal in response to detecting the ground fault, a trip circuit structured to trip open the separable contacts in response to the trip signal, a test button structured to be actuated by a user, a test unit structured to sequentially perform a GFCI self-test sequence and a ground fault test sequence in response to actuation of the test button, wherein the test unit is structured to determine whether the GFCI passed the GFCI self-test sequence and to output in an alarm signal in response to determining that the GFCI failed the GFCI self-test sequence, and an indicator structured to receive the alarm signal and to provide a visual or audible indication in response to receiving the alarm signal.Type: GrantFiled: June 15, 2015Date of Patent: November 28, 2017Assignee: EATON CORPORATIONInventor: Victor Doualla Epee
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Patent number: 9823198Abstract: Non-contact measurement of one or more electrical response characteristics of a LED structure includes illuminating an illumination area of a surface of a light emitting diode structure with one or more light pulses, measuring a transient of a luminescence signal from a luminescence area within the illumination area of the light emitting diode structure with a luminescence sensor, determining a first luminescence intensity at a first time of the measured transient of the luminescence signal from the light emitting diode structure, determining a second luminescence intensity at a second time different from the first time of the measured transient of the luminescence signal from the light emitting diode structure and determining an intensity of the electroluminescence component of the luminescence signal from the light emitting diode structure based on the first luminescence signal and the second luminescence signal.Type: GrantFiled: September 12, 2014Date of Patent: November 21, 2017Assignee: KLA-Tencor CorporationInventor: Vladimir N. Faifer
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Patent number: 9821910Abstract: A system for controlling an unmanned aerial vehicle may include a GNSS receiver, a transponder, one or more flight controls, a UAV operation module, a UAV mission module, and a UAV chassis. The system may include an operating area defined within an airspace and an airspace controller, and a transponder key issued to the UAV by the airspace controller. The airspace controller and the UAV may communicate to unlock UAV access of the operating area, including transmitting a transponder ID code for verification to the airspace controller; receiving a read certificate from the airspace controller; transmitting a mission plan to the airspace controller; receiving a mission key from the airspace controller; verifying the mission key via read back transmission to the airspace controller; and receiving a mission plan from the airspace controller in the form of the transponder key, the mission plan unlocking access to the operating area.Type: GrantFiled: May 19, 2016Date of Patent: November 21, 2017Assignee: uAvionix CorporationInventor: Sean Patrick Suiter
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Patent number: 9797959Abstract: A circuit comprises a battery field-effect transistor (FET) coupled between a battery and an electronic system so that current from the battery flows through the battery FET to the electronic system. A replica FET couples the battery to a current sensing circuit. One of the battery FET and the replica FET comprises a plurality of parallel FET segments having separate control terminals. A logic block provides a plurality of switch control signals based on a system state input. A switching circuit receives the switch control signals and selectively couples the separate control terminals of the FET segments to one of a first reference voltage terminal or a second reference voltage terminal to independently turn each FET segment on or off. The current sensing circuit provides a voltage indicative of the current flowing through the replica FET.Type: GrantFiled: November 19, 2013Date of Patent: October 24, 2017Assignee: QUALCOMM IncorporatedInventor: Eric I Mikuteit
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Patent number: 9791343Abstract: A method of deriving reciprocating device component health includes receiving a signal from a knock sensor coupled to a reciprocating device, deriving total harmonic distortion (THD) at one or more frequencies, and determining whether the derived THD exceeds a threshold value.Type: GrantFiled: February 12, 2015Date of Patent: October 17, 2017Assignee: General Electric CompanyInventor: Jeffrey Jacob Bizub
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Patent number: 9783060Abstract: A leakage detection system for a battery pack of a vehicle may include detection circuitry having a first side connecting a positive terminal of the pack to ground and a second side connecting a negative terminal of the pack to ground, and including no more than one switch among the sides. The system may also include measurement circuitry configured to measure a voltage across a resistor of one of the sides when the switch is open and closed, and a controller programmed to output a leakage associated with the battery pack based on the voltage.Type: GrantFiled: May 15, 2014Date of Patent: October 10, 2017Assignee: Ford Global Technologies, LLCInventors: Xiaoguang Chang, Xu Wang, Chuan He
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Patent number: 9779890Abstract: A terminal shield for a circuit breaker, formed of an electrically insulating material, protects an operator from inadvertently touching the load terminal that would otherwise be exposed on the bottom side of the circuit breaker: In accordance with an example embodiment of the invention, the terminal shield is integrated with a toroidally shaped current transformer sensor, to enable measuring the current in a load wire that has been inserted through an aperture in the terminal shield. Preferably there is an access hole in the front portion of the terminal shield, which allows the operator to insert a tool through the front face of the circuit breaker, to tighten the load terminal onto the load wire. The terminal shield with the integrated current transformer sensor enables standardization of load current sensing capability for circuit breakers and further enables ease of installation without clutter in the confined regions of the load center.Type: GrantFiled: June 28, 2013Date of Patent: October 3, 2017Assignee: SCHNEIDER ELECTRIC USA, INC.Inventors: Jenaro Parro, Jorge Koehrmann, Enrique Parra
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Patent number: 9778307Abstract: A device including a bridge assembly including: first, second, third, and fourth nodes, the first and third nodes being connected to a direct voltage source; a first branch connecting the first and second nodes; a second branch connecting the second and third nodes; a third branch connecting the first and fourth nodes; a fourth branch connecting the third and fourth nodes; a fifth branch connecting the second and fourth nodes and including a capacitor connected between the second and fourth nodes; a circuit controlling the switches to successively a) close the switches to charge the capacitor, and b) keep one switch closed and the other switches open; a measuring circuit measuring the current flowing through the capacitor; and a circuit determining magnitude of an insulation fault according to a current measured during b).Type: GrantFiled: September 10, 2014Date of Patent: October 3, 2017Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Daniel Chatroux, Sebastien Carcouet
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Patent number: 9746896Abstract: A computing device is described that includes a display unit. The display unit includes an array of pixels defined by N rows and M columns and at least one row select unit configured to select one or more of the N rows. The display unit further includes a first column control unit configured to drive a first contiguous group of pixels from the array of pixels, and a second column control unit configured to drive a second contiguous group of pixels from the array of pixels.Type: GrantFiled: September 11, 2015Date of Patent: August 29, 2017Assignee: Google Inc.Inventors: Roman Lewkow, Philipp Schmaelzle
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Patent number: 9733663Abstract: The present disclosure provides a surgical instrument control circuit. The control circuit includes a primary processor, a safety processor, and a segmented circuit. The segmented circuit includes a plurality of circuit segments in signal communication with the primary processor. The plurality of circuit segments includes a power segment configured to provide a segment voltage to the primary processor, the safety processor, and each of the plurality of circuit segments. The power segment is configured to provide variable voltage protection of each segment.Type: GrantFiled: March 26, 2014Date of Patent: August 15, 2017Assignee: Ethicon LLCInventors: Richard L. Leimbach, Shane R. Adams, Mark D. Overmyer, Brett E. Swensgard, Frederick E. Shelton, IV, Kevin L. Houser
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Patent number: 9730695Abstract: The present disclosure provides a surgical instrument control circuit. The control circuit includes a primary processor, a safety processor, and a segmented circuit. The segmented circuit includes a plurality of circuit segments in signal communication with the primary processor. The plurality of circuit segments includes a power segment configured to provide a segment voltage to the primary processor, the safety processor, and each of the plurality of circuit segments. The power segment is configured to provide variable voltage protection of each segment.Type: GrantFiled: September 17, 2015Date of Patent: August 15, 2017Assignee: Ethicon Endo-Surgery, LLCInventors: Richard L. Leimbach, Shane R. Adams, Mark D. Overmyer, Brett E. Swensgard, Frederick E. Shelton, IV, Kevin L. Houser
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Patent number: 9696367Abstract: A distance from a measurement point to a fault in a three-phase circuit is determined. The measurement point is located at an output of a power sub-station and the three phase circuit has a loop circuit having an associated net fault line current and a ground current. A derivative of the net fault line current of the loop circuit as measured from the measurement point is calculated. An uncompensated distance to the sub-cycle fault using at least the derivative of the net fault current is determined, and configured, to compensate for the ground current of the loop circuit. The compensation is applied to the uncompensated distance to produce a compensated distance to the sub-cycle fault.Type: GrantFiled: May 11, 2012Date of Patent: July 4, 2017Assignee: Howard UniversityInventor: Charles J. Kim
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Patent number: 9659114Abstract: The present invention relates to a real time dynamic physics simulation device of flexible DC transmission system. The device includes simulated converter transformer, simulated AC field, simulated DC field, simulated converter reactor, simulated converter, and measurement and control cabinet chassis; the simulated AC field includes the vacuum switch I, the contactor I, resistors and the vacuum switch II connected orderly; the simulated DC field includes successively connected the vacuum switch contactor III and II; the simulated AC field is connected with said measurement and control cabinet chassis; Said converter transformer is set between said resistors and said vacuum switch II; Said simulated converter reactors and said simulated converter connected are set between the vacuum switch II and the vacuum switch III.Type: GrantFiled: November 29, 2011Date of Patent: May 23, 2017Assignees: STATE GRID CORPORATION OF CHINA, CHINA ELECTRIC POWER RESEARCH INSTITUTEInventors: Zhiyuan He, Dong Liu, Yan Zhao, Yuefeng Yang, Renqiu Wang
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Patent number: 9618586Abstract: A method to facilitate fault detection in the protected unit after connection to the at least a portion of the power system. A current is sensed in the protected unit during a plurality of different time periods. Compliance of at least one of the sensed currents with a respective first current criteria is determined based on a first current threshold value. On a condition that there is determined that at least one of the sensed currents comply with the respective first current criteria, a fault in the protected unit is detected.Type: GrantFiled: February 12, 2013Date of Patent: April 11, 2017Assignee: ABB Schweiz AGInventors: Reynaldo Nuqui, Jiuping Pan, Jianping Wang
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Patent number: 9619425Abstract: An electronic control unit includes a bus connection for a connection to a bus line of a current-controlled bus, an evaluation device for sampling the current flowing through the bus connection in order to detect a digital message from a sensor which is connectable to the bus line, and a current controller for generating a predefined current pulse through the bus connection in order to induce the sensor to assume a predefined synchronization state. The current controller is set up to control the current through the bus connection in such a way that it corresponds to an operating current through the sensor.Type: GrantFiled: September 5, 2013Date of Patent: April 11, 2017Assignee: ROBERT BOSCH GMBHInventors: Massoud Momeni, Matthias Siemss
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Patent number: 9607447Abstract: This disclosure is directed to techniques for automated transmission of surveillance incident data or other anomalous incident data from an aircraft via a preferred transmission mode. An example method includes detecting, by a processing device onboard an aircraft, an anomalous incident involving the aircraft that qualities for reporting relative to a set of anomalous incident reporting criteria. The method further includes identifying, by the processing device, data onboard the aircraft relevant to the anomalous incident. The method further includes detecting that the aircraft is in a status that makes available a selected data transmission mode for transmitting the data relevant to the anomalous incident. The method further includes communicating the data relevant to the anomalous incident to a transmission system for transmission from the aircraft via the selected data transmission mode in response to detecting that the aircraft is in the status that makes available the selected data transmission mode.Type: GrantFiled: March 31, 2015Date of Patent: March 28, 2017Assignee: Honeywell International Inc.Inventors: Scott R. Gremmert, Stephen Wilmot
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Patent number: 9588168Abstract: The present disclosure relates to calculating a fault location in an electric power transmission system based on traveling waves. In one embodiment, a system consistent with the present disclosure may be configured to detect a fault in an electric power transmission system. The system may include a traveling wave detection subsystem configured to detect and measure traveling waves on a transmission line and a fault location estimation subsystem. The fault location estimation subsystem may receive from the traveling wave detection subsystem a first plurality of traveling waves on the transmission line generated during a reference event. The fault location estimation subsystem may receive from the traveling wave detection subsystem a second plurality of traveling waves generated during an unplanned event. An unmatched traveling wave in the second plurality of waves may be detected and a location of the unplanned event based on the unmatched traveling wave.Type: GrantFiled: January 23, 2015Date of Patent: March 7, 2017Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Mangapathirao Venkata Mynam, Armando Guzman-Casillas
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Patent number: 9588180Abstract: A circuit, system, machine-readable storage medium and method for detecting the presence of a leakage path in a multi-cell voltage source is described. The system includes a detection circuit, the detection circuit having a first, second and third amplifiers, a first input of the first amplifier connected to a first terminal of the voltage source and the first input of the second amplifier connected to a second terminal of the voltage source, a second input of each of the first and second amplifiers connected to a reference capacitor, and an output of each of the first, second and third amplifiers connected to a respective first, second and third outputs of the detection circuit; and a processor having inputs connected to the first and second outputs of the detection circuit.Type: GrantFiled: July 13, 2012Date of Patent: March 7, 2017Assignee: ANALOG DEVICES, INC.Inventor: Lawrence C. Streit
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Patent number: 9581656Abstract: An inverter and a method for detecting a phase failure in an energy supply grid during operation of an inverter, which is connected to the energy supply grid for feeding electrical energy via a YNd transformer is disclosed. The method includes transforming the values of the output currents into a symmetrical positive-sequence current value and into a symmetrical negative-sequence current value of a coordinate system rotating at a fundamental frequency of the energy supply grid. The method further includes determining a ratio of the negative-sequence current value to the positive-sequence current value, and signalling a phase failure in the energy supply grid if the determined ratio is greater than a preset threshold value for longer than a preset time period. The disclosure furthermore relates to an inverter designed for implementing the method.Type: GrantFiled: December 19, 2014Date of Patent: February 28, 2017Assignee: SMA SOLAR TECHNOLOGY AGInventors: Christian Halt, Christian Hardt, Christoph Jordaan
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Patent number: 9552121Abstract: A processing system for a capacitive sensing input device comprises a sensing module, a first internal diagnostic mechanism, and a determination module. The sensing module is configured to couple with a first sensor electrode path of a plurality of sensor electrode paths, and is configured to drive the first sensor electrode path with a first signal. The first internal diagnostic mechanism is configured to couple with a second sensor electrode path and to acquire a test signal output while the sensing module drives the first sensor electrode path with the first signal. The first internal diagnostic mechanism comprises a selectable current source configured to couple with the second sensor electrode path, and the selectable current source is enabled during acquisition of the test signal output. The determination module is configured to determine whether the first and second sensor electrode paths are ohmically coupled together based on the test signal output.Type: GrantFiled: June 30, 2015Date of Patent: January 24, 2017Assignee: Synaptics IncorporatedInventors: Jorge Saucedo, John M. Weinerth, Wen Fang
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Patent number: 9541586Abstract: An apparatus for detecting an abnormal event and capturing associated waveforms includes a detection module within a power control device that detects an abnormal condition. The abnormal condition is indicative of an impending failure of the power control device and/or a condition within the power control device indicative of a parameter being outside of a specified limit. The power control device controls power to one or more power devices in a power distribution system. The apparatus includes a signal transmit module that transmits a capture signal to a transient capture meter. The transient capture meter meters transient conditions of a branch of the power distribution system that includes the power control device. The capture signal instructs the transient capture meter to capture current and/or voltage waveforms relevant to a time when the detection module detected the abnormal condition.Type: GrantFiled: November 24, 2014Date of Patent: January 10, 2017Assignee: ROCKWELL AUTOMATION TECHNOLOGIES, INC.Inventor: Richard A Morgan
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Patent number: 9535024Abstract: A monitoring circuit for detecting degradation of a hose assembly a hose assembly and a hose assembly incorporating such a monitoring circuit are disclosed. The monitoring circuit includes a voltage source connected to a first connection location of a hose assembly. A capacitor is electrically connected between the second connection location connected to the second conductive layer of a hose assembly and a ground. The capacitor is selected such that a change in resistance of the hose assembly changes a voltage carried by the capacitor. The monitoring circuit includes a voltage sampling circuit configured to periodically detect a voltage at the capacitor. Upon detecting a change in the voltage above a predetermined threshold, the voltage sampling circuit generates an alarm indicative of potential failure.Type: GrantFiled: September 13, 2013Date of Patent: January 3, 2017Assignee: Eaton CorporationInventors: James Dean Betsinger, Nicholas Adam Burtyk
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Patent number: 9519742Abstract: According to an embodiment, a semiconductor device switches circuit forms and circuit configurations of a plurality of analog functional circuits by rearranging a command execution order according to the command execution order set in advance irrespectively of a command execution order specified by a user and executing the commands.Type: GrantFiled: October 20, 2014Date of Patent: December 13, 2016Assignee: Renesas Electronics CorporationInventor: Yutaka Yoshizawa
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Patent number: 9515474Abstract: Disclosed is a power off device which includes a micro arc detector for turning on a first switching element, based on a voltage induced in a high frequency choke coil by a high frequency pulse current caused by micro arc at a power line, a high current arc detector for outputting a high current arc detection current during turning-on of a second switching element made based on variation of a magnetic field generated at a coil, a delay unit for accumulatively charging the micro arc detection current or the high current arc detection current in a delay capacitor at a predetermined time constant, a power off unit for electrically disconnecting a load from the power line when an operating voltage is applied, and a first switch for connecting the operating voltage to the power off unit in response to the arc detection signal.Type: GrantFiled: May 24, 2013Date of Patent: December 6, 2016Inventors: Tae Young Chung, Dea Sang Kim