Transient Or Portion Of Cyclic Patents (Class 324/102)
  • Patent number: 11366143
    Abstract: An intelligent electronic device (IED) has enhanced power quality and communications capabilities. The power meter can perform energy analysis by waveform capture, detect transient on the front end voltage input channels and provide revenue measurements. The power meter splits and distributes the front end input channels into separate circuits for scaling and processing by dedicated processors for specific applications by the power meter. Front end voltage input channels are split and distributed into separate circuits for transient detection, waveform capture analysis and revenue measurement, respectively. Front end current channels are split and distributed into separate circuits for waveform capture analysis and revenue measurement, respectively.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: June 21, 2022
    Assignee: Electro Industries/GaugeTech
    Inventors: Joseph Spanier, Erran Kagan, Wei Wang
  • Patent number: 11307227
    Abstract: A system and a method is provided for the detection and capture, and in particular for an ultra high speed detection and capture, of transients in input voltages by an intelligent electronic device. The system and method detects transients for input voltages in either phase to phase or phase to neutral measurements and permits a user to set threshold levels for detecting transients in input voltages. In an embodiment, the system and method further provides a field programmable gate array as a controller for managing transient detection. The field programmable gate array includes a state machine for determining the state of the sampled signal with respect to a threshold level at a specified waveform sample period.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: April 19, 2022
    Assignee: Electro Industries/Gauge Tech
    Inventors: Joseph Spanier, Hai Zhu, Wei Wang
  • Patent number: 11238119
    Abstract: An electronic system may be configured to determine if a first-type device ID and a second-type device ID both identify a same device. To do so, the electronic system may preliminarily group a particular first-type ID with a particular second-type ID based on matching time slots and network addresses. Individual scores for each of the preliminary groups may be determined based on cardinalities associated with the time slots. Combined scores may then be determined for groups having the same first-type device ID and second-type device ID. A final analysis may be performed to confirm, with a sufficient level of confidence, whether first-type device IDs and second-type device IDs included in the preliminary groups identify the same device.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: February 1, 2022
    Assignee: VERIZON MEDIA INC.
    Inventors: Jonathan Malkin, Jinhui Liu, Jerry Zhang, Csaba Kecskemeti, Wendell Baker
  • Patent number: 11215646
    Abstract: A system and method for detecting the connectivity of an absence of voltage detector to the source of power to be detected has a first terminal wire connected to a first terminal and a second terminal wire also connected to the first terminal. An RF signal is placed on the first terminal and then its presence is detected on the second signal wire. This method and system can also be placed on each phase of a three phase system.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: January 4, 2022
    Assignee: Panduit Corp.
    Inventors: Walid Balid, Masud Bolouri-Saransar
  • Patent number: 11162984
    Abstract: The invention relates to a method for detecting electrical currents on or near electrical conductors with at least one reed switch as a magnetically responsive switch, which is arranged near the electrical conductor such that when there is a significant current flow through the conductor, the magnetic field created triggers the switch and initiates evaluation electronics connected to the switch. For the detection of surge current variables and differentiation between long-term pulsed currents and short-term pulsed currents, a plurality of reed switches is arranged at pre-determined, different, increasing distances from the electrical switch, the evaluation electronics determining the response and the switching times of the respective reed switches. The surge current variables are determined from the association of the determined values with the respective reed switch and the pulse shape from the switching time.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: November 2, 2021
    Assignee: DEHN SE + CO KG
    Inventors: Peter Zahlmann, Josef Birkl, Thomas Böhm, Klaus Bühler, Johannes Maget, Arnd Ehrhardt, Eduard Shulzhenko
  • Patent number: 11017793
    Abstract: Example embodiments disclosed herein relate to audio signal processing. A method of indicating a presence of a nuisance in an audio signal is disclosed. The method includes determining a probability of the presence of the nuisance in a frame of the audio signal based on a feature of the audio signal, the nuisance representing an unwanted sound made by a user, in response to the probability of the presence of the nuisance exceeding a threshold, tracking the audio signal based on a metric over a plurality of frames following the frame, determining, based on the tracking, that the presence of the nuisance is to be indicated to the user, and in response to the determination, presenting to the user a notification of the presence of the nuisance. Corresponding system and computer program product are also disclosed.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 25, 2021
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Dong Shi, David Gunawan, Glenn N. Dickins
  • Patent number: 10983149
    Abstract: An inrush current test device is adapted to receive an alternating current. The inrush current test device includes: a first isolation coupling component, a positive crossing point pulse generation circuit, an output circuit, and a control circuit. The first isolation coupling component includes a primary side and a secondary side, and is responsive to the alternating current on the primary side and conducts the secondary side. When the secondary side transits from an off state to an on state, the positive crossing point pulse generation circuit generates a positive crossing point pulse. When the control circuit is actuated and the positive crossing point pulse is detected, after delaying for a delay time, the control circuit outputs a control pulse for actuating the output circuit for a first operating time. The output circuit is configured to receive the alternating current and output the alternating current when the output circuit is actuated.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: April 20, 2021
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventor: Jen-Hao Hsiao
  • Patent number: 10962604
    Abstract: An arrangement for injection-based ground fault protection handling including a number of stator windings of an electric machine that are connected to a neutral point, a first transformer including at least one primary winding connected to at least one measurement point of the stator windings and at least one secondary winding for measuring an electrical quantity of the machine at the measurement point. There is also a second transformer having a primary winding connected between the neutral point and a ground potential and a secondary winding for connection to a signal generation and detection unit in order to inject a signal into the neutral point and receive a response. The impedance of the second transformer is in the range of the impedance of the machine.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: March 30, 2021
    Assignee: ABB SCHWEIZ AG
    Inventors: Stefan Roxenborg, Zoran Gajic, Tord Bengtsson, Mikael Sehlstedt
  • Patent number: 10868576
    Abstract: An apparatus includes parallel delay lines, each exhibiting a delay; a first set of switches for each port of a first set of ports, each of which is to selectively couple a port of the first set of ports to first ends of the delay lines; a second set of switches for each port of a second set of ports, each of which to selectively couple a port of the second set of ports to second ends of the delay lines. A signal source generates a series of clock signals that are sequentially time delayed between the first set of switches and the second set of switches, where an input signal at one of the first or second sets of ports travels from the one of the first or second sets of ports to an output port of opposite set of ports over the delay lines.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: December 15, 2020
    Assignee: Board of Trustees of the University of Illinois
    Inventors: Songbin Gong, Ruochen Lu, John Andrew Krol, Liuqing Gao
  • Patent number: 10848147
    Abstract: One or more embodiments are directed to inter-integrated circuit (I2C) transmitters, receivers, and devices that utilize a stable reference voltage for driving a pre-driver of the transmitter and for driving a first input stage of the receiver. One embodiment is directed to a device A device that includes an inter-integrated circuit (I2C) transmitter and an I2C receiver. The I2C transmitter includes a driver coupled to an I2C data line, and a pre-driver coupled to a variable first supply voltage, a second supply voltage, and a reference voltage. The pre-driver is configured to output a control signal to a control terminal of the driver. The I2C receiver includes a first stage coupled to the I2C data line, the variable first supply voltage, the second supply voltage, and the reference voltage.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 24, 2020
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Saiyid Mohammad Irshad Rizvi, Atul Dwivedi
  • Patent number: 10651956
    Abstract: The present invention relates to a portable directional antenna which is equipped with a camera which is integrated into the housing of the directional antenna. In addition to the conventional documentation of the position-finding information, this integrated, installed camera makes it possible, by means of the directional antenna function, to also optically document the surroundings of the interference source with a variable level of detail, for example by way long-range or short-range capture. By way of the optical additional information thus obtained, the present invention provides a simple, but nonetheless very effective, enhanced documentation option for interference sources and the surroundings thereof. Thus, during the search for radio-frequency interferences, no separate camera for capturing image information has to be brought along, and this increases the comfort for a user.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: May 12, 2020
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventor: Martin Hisch
  • Patent number: 10608440
    Abstract: Control circuit includes a current sensor that is configured to detect alternating current transmitted through a power line. The alternating current includes an alternating current (AC) component and a direct current DC offset component. The control circuit also includes a filter sub-circuit that is configured to receive a sensor output from the current sensor that is representative of the AC component and the DC component. The AC component has a frequency higher than a frequency of the DC component. The filter sub-circuit is configured generate a DC output that is based on the DC component. The control circuit also includes an analysis sub-circuit that is configured to receive the DC output and determine that the DC output has passed a designated threshold. The analysis sub-circuit is configured to trip a relay or output a signal when the DC output passes the designated threshold.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 31, 2020
    Assignee: TE CONNECTIVITY CORPORATION
    Inventor: Matthew Mishrikey
  • Patent number: 10591519
    Abstract: A wind turbine generator fault detection method is described. The method includes acquiring current data from a wind turbine generator during operation, determining frequency demodulated signals and amplitude demodulated signals by frequency demodulating and amplitude demodulating the current data, resampling the frequency and amplitude demodulated signals corresponding to the current data, monitoring a frequency spectra of the resampled frequency and amplitude demodulated signals corresponding to the current data to identify one or more excitations in the frequency spectra. In response to identifying one or more excitations in the frequency spectra at one or more of the variable fault characteristic frequencies, the method includes generating and transmitting an alert that indicates that a wind turbine generator fault is detected.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: March 17, 2020
    Assignee: NUtech Ventures
    Inventors: Wei Qiao, Xiang Gong
  • Patent number: 10564802
    Abstract: The systems and methods described herein are directed to graphical user interfaces presenting resource consumption analytics. Resource usage is provided in a graphical user interface indicating current resource consumption and/or historical resource consumption. Weather data and a cumulative running total can be provided along with the resource consumption data to clearly provide a deep understanding of resource usage and operating conditions. Further, resource consumption information from multiple monitoring locations may be juxtaposed and/or presented simultaneously to provide an indication of outlying usage consumption among similarly situated monitoring locations. The graphical user interfaces may be provided with alerts, alarms, thereby reporting and alerting to an end-user via multiple delivery mechanisms, of potential sources of resource waste or loss.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: February 18, 2020
    Assignee: APANA Inc.
    Inventors: Matthew W. Rose, Frank Burns, Tom Remmers, Matt Maher Peterson
  • Patent number: 10509599
    Abstract: A memory system having a stack memory, a set of media. and a controller. The controller divides the stack memory into a plurality of stacks, measures usages of the stacks in a period of time of operating on the set of media, and adjusts partitioning of the stack memory into the plurality of stacks according to the measured usages.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: December 17, 2019
    Assignee: MICRON TECHNOLOGY, INC.
    Inventor: Alex Frolikov
  • Patent number: 10468867
    Abstract: An arc fault detection unit is disclosed for a low-voltage electrical circuit. The arc fault detection unit includes at least one voltage sensor, for periodically determining electrical voltage values of the electrical circuit, connected to an evaluation unit. The evaluation unit is designed such that a first half of a first number of voltage values is continuously summed to form a first partial sum and the second half of the voltage values is continuously summed to form a second partial sum and a difference of the two partial sums is calculated. Either as one alternative the difference or the amplitude of the difference is compared with a first threshold value and if the value is exceeded, an arc fault detection signal is output; or as a second alternative the difference is compared with a second threshold value and if the value is undershot, an arc fault detection signal is output.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: November 5, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Joerg Meyer, Karsten Wenzlaff, Peter Schegner
  • Patent number: 10461627
    Abstract: A power converter controller includes a fractional valley controller configured to determine a target number of valleys of a resonant waveform at a drain node of a main switch, the target number of valleys corresponding to a desired off-time of the main switch, the fractional valley controller modulating an off-time of the main switch between two or more modulated off-times. The target number of valleys corresponds to a non-integer number of valleys of the resonant waveform at the drain node of the main switch. Each of the modulated off-times of the main switch corresponds to an integer number of valleys, and the two or more modulated off-times of the main switch has an average value that corresponds to the desired off-time.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: October 29, 2019
    Assignee: Silanna Asia Pte Ltd
    Inventor: Aleksandar Radic
  • Patent number: 10241143
    Abstract: According to the exemplary embodiments, a short-circuit of a sense resistor is detected according to a result of comparison between a sense voltage and a reference voltage at a time based on at least one of a period set based on an input sense voltage and a turn-on time of a power switch. A blanking period is set based on the input sense voltage in a current mode, and a short-circuited resistor detection period is set based on the input sense voltage.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 26, 2019
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: In-Ki Park, Hyun-Chul Eum, Yong-Sang Shin
  • Patent number: 10181392
    Abstract: Devices and methods for monitoring a discharge in a plasma process are provided. An example method includes detecting at least a first signal path of at least one plasma supply signal within at least a first time range within at least one period of the plasma supply signal, detecting at least a second signal path of the at least one plasma supply signal within at least a second time range which is at the point corresponding to the first time range in at least one other period of the plasma supply signal, and generating an identification signal if the second signal path deviates by at least a distance from the first signal path. The distance has a minimum time difference and a minimum signal amplitude difference. The method enables to identify arcs in a very reliable and very rapid manner.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: January 15, 2019
    Assignee: TRUMPF Huettinger GmbH + Co. KG
    Inventors: Daniel Leypold, Ulrich Richter, Fabian Wunn
  • Patent number: 10084382
    Abstract: An adaptive valley mode switching power converter is provided that switches on a power switch within valley periods of a resonant voltage oscillation for the power switch. Each valley period is determined with regard to a valley threshold voltage.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: September 25, 2018
    Assignee: DIALOG SEMICONDUCTOR INC.
    Inventors: Pengju Kong, Hien Bui, Duc Doan, Cong Zheng
  • Patent number: 10007240
    Abstract: Management systems, methods, and mediums are provided. A method includes monitoring a value of a data point associated with a device in an automation system using a set of pairs of event enrollment objects and notification class objects configured to generate and communicate an alarm according to a first protocol. Each of the pairs of objects corresponds to one of a set of offsets defined according to a second protocol. The method also includes writing property values of the pairs of objects for different alarm monitoring modes using a set of command objects. Additionally, the method includes generating and communicating, in response to detecting the value for the data point meeting conditions in at least one of the event enrollment objects, an alarm according to a notification class object paired with the at least one event enrollment object.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: June 26, 2018
    Assignee: Siemens Industry, Inc.
    Inventors: Bruno P. Landou, Thomas Rule
  • Patent number: 9916000
    Abstract: Methods, systems, and apparatus for collect historical power consumption data and power consumption statistics for one or more locations and devices at the location to generate historical power consumption and health data (“historical data”). The historical data are used to develop and provide multiple different protection and monitoring functions. The system may be deployed within a single customer location, e.g., within a building or a plant, and local analytics are developed at the location. Alternatively, the system may be distributed among several locations for a particular customer or multiple different customers and include cloud-based analytics in addition to, or instead of, local analytics.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: March 13, 2018
    Assignee: I-EWM Acquisition, LLC
    Inventors: Benjamin Grimes, Vincent Luciani
  • Patent number: 9910093
    Abstract: A device and method for detecting and analyzing faults in a generator stator are disclosed. The device and method include measuring a direct current component of a neutral ground current in a generator stator grounding conductor, analyzing the direct current flow and comparing it with other ground fault indicators, and providing diagnosis and recommended actions based on the analysis. The direct current flow is measured by a sensitive direct current sensor that may also measure AC components via oscillations in the current measurement, such as a Hall Effect sensor, placed on the generator stator grounding conductor. The analysis of the direct current signal includes consideration of the generator operating conditions and environmental conditions, and also includes comparison to historical data representing both normal and abnormal operation of the generator. Alarms and advisories are provided when generator faults are detected or predicted.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: March 6, 2018
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Edward David Thompson, James F. Lau
  • Patent number: 9886082
    Abstract: Methods, systems, and apparatus for collect historical power consumption data and power consumption statistics for one or more locations and devices at the location to generate historical power consumption and health data (“historical data”). The historical data are used to develop and provide multiple different protection and monitoring functions. The system may be deployed within a single customer location, e.g., within a building or a plant, and local analytics are developed at the location. Alternatively, the system may be distributed among several locations for a particular customer or multiple different customers and include cloud-based analytics in addition to, or instead of, local analytics.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: February 6, 2018
    Assignee: I-EWM Acquisition, LLC
    Inventors: Benjamin Grimes, Vincent Luciani
  • Patent number: 9759761
    Abstract: A three-phase alternating current mains has capacitor bushings that each have a conductor connected with one of the mains lines of the alternating current mains and an electrically conductive lining surrounding the conductor. These bushings are monitored by first determining an upper capacitance and a lower capacitance for each bushing and then detecting a measured voltage between the respective lining and a ground potential at each capacitor bushing. An actual capacitance for each capacitor bushing is calculated that depends on the respective measured voltage and the respective lower capacitance as well as on the measured voltage, the lower capacitance, and the upper capacitance of one of the other capacitor bushings. For each capacitor bushing the respective upper capacitance is compared with the respective actual capacitance and a monitoring signal is generated that is dependent on the results of the capacitance comparison.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: September 12, 2017
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Junliang Wu, Karsten Viereck, Ulrich Sundermann
  • Patent number: 9685862
    Abstract: A semiconductor device includes: a voltage-dividing resistor circuit including first and second resistors connected in series between a power supply potential and a reference potential and outputting a potential at a point of connection between the first and second resistors; a transient response detection circuit including a third resistor having a first end connected to the power supply potential and a capacitor connected between a second end of the third resistor and the reference potential, and outputting a potential at a point of connection between the third resistor and the capacitor; an AND circuit ANDing an output signal of the voltage-dividing resistor circuit and an output signal of the transient response detection circuit; and an output circuit, wherein switching of the output circuit is controlled by an output signal of the AND circuit.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: June 20, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Yoshida, Kyoko Oyama, Yoshikazu Tanaka, Shiori Uota, Nobuya Nishida
  • Patent number: 9657709
    Abstract: A power plant, and a method for using an electrical unit therefor are disclosed, wherein, an electrical machine can be connected to a power network via a converter and a block transformer. A method is disclosed for using the electrical unit, wherein the converter disconnects the block transformer from the machine in the event of a malfunction of the block transformer.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: May 23, 2017
    Assignee: ABB Schweiz AG
    Inventors: Claes Hillberg, Georg Traxler-Samek, Peter Steimer
  • Patent number: 9535105
    Abstract: An apparatus and method for accurately detecting and monitoring leakage currents on porcelain and glass insulator disc strings is disclosed. The sensor apparatus includes a sensor unit configured to attach to a cap of an insulator disc string. The sensor unit includes a sensor disc configured to surround the cap and a housing connected to the sensor disc. The sensor disc includes a conducting lower disc set, a conducting upper disc set, an insulating disc set sandwiched between the upper and lower conducting disc sets, and a conducting mesh connected to a bottom of the lower disc set. The housing including electronics configured to measure and communicate leakage currents on an insulator disc. Leakage currents on a surface of the insulator disc are intercepted by the sensor disc and transferred to the housing for processing and communication by the electronics.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 3, 2017
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Andrew John Phillips, Christiaan Stephan Engelbrecht, J. Mark Major, Robert Carlton Lynch
  • Patent number: 9515739
    Abstract: A system for communicating data signals over an optical transmission path combines forward signals onto a fiber that also carriers return signals. The system includes a return receiver for detecting an optical beat interference (OBI) event. Return signals are received by return receivers, one for each group of users. The fiber is provided to a splitter that distributes the forward optical receivers to the end users (RTx), which each comprise a receiver for the forward wavelength and a transmitter for the return wavelength. The transmitters provide return signals. When multiple transmitters are on at the same time, OBI events can take place when transmitter wavelengths coincide. When the return receiver detects an OBI event, it may signal the end user devices via a forward communication. The end user devices are responsive to the OBI detection signal to adjust a return wavelength to reduce or eliminate OBI.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: December 6, 2016
    Assignee: ARRIS Enterprises, Inc.
    Inventors: Venkatesh G. Mutalik, Marcel F. Schemmann
  • Patent number: 9476860
    Abstract: An apparatus for detecting fatigue induced failure of an assembly having a single flexible element or a series of flexible elements stacked in juxtaposed engagement, for transmitting power from one component to another, the assembly having a cyclic operating speed frequency that includes at least one sensor mounted in proximity to said assembly, the sensor providing an analog signal corresponding to an airborne acoustic signal emitted by the assembly, means for amplifying the analog signal, filter means to reduce background noise from the analog signal, an analog to digital converter for converting the analog signals to a digital signal, means for sampling the digital signals in respect of the operating speed frequency of the assembly and means for analyzing the digital signals and providing an output upon the occurrence of one or more digital signal spikes in an operating cycle.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 25, 2016
    Assignee: John Crane UK Limited
    Inventors: Klaus-Dieter Meck, Peter Derek Carlisle
  • Patent number: 9297837
    Abstract: A voltage sensor for obtaining a light signal representative of an AC voltage in a live electrical wire having a surrounding electrical field, comprising: a conducting device adapted to be placed in the surrounding electrical field and in galvanic isolation to the live electrical wire for causing a movement of charges and extracting a current from the movement of charges; a micro-light source for emitting a light signal, the micro-light source being operatively connected to the conducting device for receiving the extracted current and being directly powered by the extracted current, an intensity of the light signal being related to a value of the AC voltage in the electrical wire; a light guide, operatively coupled to the micro-light source, for receiving and propagating the light signal over a distance.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: March 29, 2016
    Assignee: INSTITUT NATIONAL D'OPTIQUE
    Inventor: Marc Levesque
  • Patent number: 9197236
    Abstract: A method for producing sampled data, which as the requested sampling period is increased, each sample is the average of an increasing number of ADC samples such that a maximum number of ADC samples are evenly space across the sample period. The method can include choosing one of multiple ADC with varying speed versus resolution capabilities to further increase the quality of the sampled data as the sampling period increases.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: November 24, 2015
    Assignee: TEKTRONIX, INC.
    Inventors: Wayne C. Goeke, Brian P. Frackelton, Benjamin J. Yurick
  • Patent number: 9151785
    Abstract: Provided is a power measurement device including a detection part configured to detect a supply current and a supply voltage from a commercial alternating current power supply, a frequency control part configured to transit a fundamental frequency by the supply current and the supply voltage to an intermediate frequency, a conversion part configured to generate a digital current value and a digital voltage value of the supply current and the supply voltage having the intermediate frequency applied from the frequency control part and transit the intermediate frequency to the fundamental frequency again, and a calculation/control part configured to calculate wattage using the digital current value and the digital voltage value, which are output signals of the conversion part.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: October 6, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Shin Jae Kang
  • Patent number: 9006624
    Abstract: An induction heating system includes an induction heating coil operable to inductively heat a load with a magnetic field, a detector for detecting a current feedback signal corresponding to a current flowing through the induction heating coil, and a controller for detecting a switching transient in the current feedback signal and determining a resonant frequency of the system based on a characteristic of the switching transient.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: April 14, 2015
    Assignee: General Electric Company
    Inventors: Daniel Brosnan, Mariano Filippa, Kresimir Odorcic
  • Patent number: 8862435
    Abstract: An intelligent electronic device (IED) has enhanced power quality and communications capabilities. The power meter can perform energy analysis by waveform capture, detect transient on the front end voltage input channels and provide revenue measurements. The power meter splits and distributes the front end input channels into separate circuits for scaling and processing by dedicated processors for specific applications by the power meter. Front end voltage input channels are split and distributed into separate circuits for transient detection, waveform capture analysis and revenue measurement, respectively. Front end current channels are split and distributed into separate circuits for waveform capture analysis and revenue measurement, respectively.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: October 14, 2014
    Assignee: Electric Industries/Gauge Tech
    Inventors: Joseph Spanier, Erran Kagan, Wei Wang
  • Publication number: 20140176117
    Abstract: A system and a method is provided for the detection and capture, and in particular for an ultra high speed detection and capture, of transients in input voltages by an intelligent electronic device. The system and method detects transients for input voltages in either phase to phase or phase to neutral measurements and permits a user to set threshold levels for detecting transients in input voltages. In an embodiment, the system and method further provides a field programmable gate array as a controller for managing transient detection. The field programmable gate array includes a state machine for determining the state of the sampled signal with respect to a threshold level at a specified waveform sample period.
    Type: Application
    Filed: March 3, 2014
    Publication date: June 26, 2014
    Applicant: Electro Industries/Gauge Tech.
    Inventors: Joseph Spanier, Hai Zhu, Wei Wang
  • Patent number: 8666688
    Abstract: A system and a method is provided for the detection and capture, and in particular for an ultra high speed detection and capture, of transients in input voltages by an intelligent electronic device. The system and method detects transients for input voltages in either phase to phase or phase to neutral measurements and permits a user to set threshold levels for detecting transients in input voltages. In an embodiment, the system and method further provides a field programmable gate array as a controller for managing transient detection. The field programmable gate array includes a state machine for determining the state of the sampled signal with respect to a threshold level at a specified waveform sample period.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: March 4, 2014
    Assignee: Electro Industries/Gauge Tech
    Inventors: Joseph Spanier, Hai Zhu, Wei Wang
  • Patent number: 8508217
    Abstract: An output circuit of a charge mode sensor includes a second resistor and an operational amplifier. The second resistor connects an output portion of the charge mode sensor and a ground. The operational amplifier is configured to output a detection signal that varies in accordance with an amount of charge kept in the charge mode sensor. The operational amplifier includes an inverting input portion, a non-inverting input portion, and an output portion. The inverting input portion is connected to the output portion of the charge mode sensor via a sensor cable. The non-inverting input portion is connected to a reference voltage. The output portion is connected to the inverting input portion via a first resistor.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: August 13, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventor: Yoshimasa Eguchi
  • Patent number: 8336352
    Abstract: Detection of fault occurrences within a power distribution system. A transient detector and fault classification system (10) implements an algorithm that detects transients which may result from the occurrence of a fault in the power distribution system. The system includes a detection module (18) which processes a set samples obtained from electrical waveforms propagated of through the power distribution system and appear to be statistically anomalous compared to other sample data. This is done using an adaptive detection algorithm that is applied when large changes occur in a waveform over a relatively short period of time. The identified samples are then provided to a signal classifier module (20) which processes sets of samples to classify a transient they represent as a likely fault occurrence or some other type of anomaly which is likely not a fault occurrence.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: December 25, 2012
    Assignee: Aclara Power-Line Systems, Inc.
    Inventors: Priotomo Abiprojo, Gordon Gregg, David Rieken
  • Publication number: 20120299580
    Abstract: A transient recovery circuit for switching devices. The transient recovery circuit includes a detecting circuit for detecting a rapid transient in an output voltage of a switching device by detecting a rate of the output voltage transient; an auxiliary controlling circuit in a feedback loop of the switching device for correcting the output voltage by changing a bandwidth of the feedback loop if the rapid transient is detected; and an initializing circuit for initializing the feedback loop to expected operating points in a continuous conduction mode after correcting the output voltage.
    Type: Application
    Filed: September 30, 2011
    Publication date: November 29, 2012
    Applicant: Cosmic Circuits Private Limited
    Inventors: Hrishikesh BHAGWAT, Rupak Ghayal, Saumitra Singh, Pawan Gupta, Prakash Easwaran
  • Patent number: 8284066
    Abstract: An automated and/or remote method for identifying and/or changing the source of power for these generator sets, which may apply to any environment where there are alternative sources of power available which must be managed remotely (such as for other powered containers not used for refrigeration transport).
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: October 9, 2012
    Assignee: Startrak Information Technologies, LLC
    Inventors: Herbert Perten, Timothy Slifkin, Thomas A. Robinson, Swati Chiney
  • Publication number: 20120197570
    Abstract: At least a method and a system are described for monitoring and measuring one or more parameters in an integrated circuit chip by way of receiving a first voltage, a second voltage, and a control signal. In a representative embodiment, the first voltage is used for powering a probe and the second voltage is used as a voltage reference for voltage measurement within the integrated circuit chip. In one or more representative embodiments, the one or more parameters measured comprise minimum and maximum voltage levels of a signal, sampled voltage levels of a signal, a period of a signal, a duty cycle of a clock signal, a jitter of a clock signal, and/or a temperature at a location within the integrated circuit chip.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 2, 2012
    Inventors: Mehran Ramezani, Vahid Ordoubadian
  • Patent number: 8175829
    Abstract: A signal analyzer includes a divergence detector for detecting periodic interference in a signal, an information detector for detecting a random event in the signal, and output circuitry for providing compensation for the periodic interference and the random event.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: May 8, 2012
    Assignee: Agilent Technologies, Inc.
    Inventors: Mostafa Afgani, Sinan Sinanovic, Harald Haas
  • Publication number: 20120014514
    Abstract: A method and an apparatus for indicating presence of a transient noise in a call are provided. The method comprises the steps of determining activity at an endpoint of the call by monitoring presence of a signal input from the endpoint into the call and monitoring presence of a potential source of transient noise at the endpoint. Further, based on the activity determination and the monitoring of the presence of a potential source of transient noise, a signal representative of the presence of a transient noise in the call is sent. The present invention is advantageous in that it enables improvement of the quality of the call.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 19, 2012
    Applicant: Google Inc.
    Inventors: Niklas Enbom, Roar Hagen, Jan Skoglund
  • Patent number: 7933559
    Abstract: A system for testing radio frequency (RF) communications of a device capable of such communications is provided. The system includes a chamber for isolating the device from RF interference, an antenna that is suitable for RF communications with the device wherein the antenna is capable of communications over a range of frequencies, the antenna being located within the chamber, and a digital communication link for providing non-RF communications with the device.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: April 26, 2011
    Assignee: Psion Teklogix Inc.
    Inventor: Zivota Zeke Stojcevic
  • Patent number: 7876085
    Abstract: The present invention discloses a quasi-resonant valley voltage detecting method, comprising the steps of: generating a valley detection signal by detecting a valley of a first quasi-resonant signal; generating a count value by counting the valley detection signal; and determining a level transition instance of a gating signal according to the count value, wherein the level transition instance of the gating signal is pulled back by the valley detection signal to trace the valley of the first quasi-resonant signal. The present invention also provides a quasi-resonant valley voltage detecting apparatus.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: January 25, 2011
    Assignee: Grenergy Opto, Inc.
    Inventors: Chia-Chieh Hung, Yen-Hui Wang
  • Publication number: 20100315062
    Abstract: The present invention discloses a quasi-resonant valley voltage detecting method, comprising the steps of: generating a valley detection signal by detecting a valley of a first quasi-resonant signal; generating a count value by counting the valley detection signal; and determining a level transition instance of a gating signal according to the count value, wherein the level transition instance of the gating signal is pulled back by the valley detection signal to trace the valley of the first quasi-resonant signal. The present invention also provides a quasi-resonant valley voltage detecting apparatus.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 16, 2010
    Applicant: GRENERGY OPTO, INC.
    Inventors: Chia-Chieh Hung, Yen-Hui Wang
  • Publication number: 20100033164
    Abstract: A transient noise detection circuit for detecting a level of a transient noise voltage is disclosed. The transient noise detection circuit comprises a triggering circuit, a rectifying circuit, and a controller. The triggering circuit is coupled between a power rail and a ground node. When the triggering circuit receives a transient noise, the triggering circuit generates a triggering signal. The rectifying circuit comprises a rectifying unit and a current-limiting unit coupled in series. When the rectifying unit receives the triggering signal from the triggering circuit, the rectifying unit will be triggered by the triggering signal. The controller is coupled to a detection node between the rectifying unit and the current-limiting unit. The controller is used for determining the level of the transient noise voltage based on the voltage of the detection node.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 11, 2010
    Applicant: TRANSIENT NOISE DETECTION CIRCUIT
    Inventors: Ming Dou KER, Wen Yi CHEN, Hsin Chin JIANG
  • Publication number: 20100026369
    Abstract: The invention relates to a method for monitoring whether or not the switching threshold of a switching sensor lies within a predefined tolerance region. The switching sensor comprises a signal input, to which an input signal is applied, and a signal output via which a switch output signal is emitted that can take a first value when the input signal is larger than the switching threshold and, otherwise, takes a second value. A modulator signal generated by a modulator (MD) is used as an input signal, characterized in that the modulator signal changes continuously or cyclically between an output value, which defines the upper limit of the tolerance region, and a test value which is smaller than the output value and defines the lower limit of the tolerance region. According to the invention, the switch output signal pulses at the rate of the modulator signal between the first and the second value when the switching threshold of the switching sensor lies within the tolerance region.
    Type: Application
    Filed: October 22, 2007
    Publication date: February 4, 2010
    Inventors: Matthias Hofmayer, Michael Kindermann
  • Publication number: 20090039867
    Abstract: In an embodiment, a method is disclosed that includes receiving a clock signal at a delay chain of a circuit device and determining a value of the clock signal at a selected point within the delay chain. The method also includes adjusting the selected point when the value does not indicate detection of an edge of the clock signal.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Applicant: QUALCOMM INCORPORATED
    Inventors: Martin Saint-Laurent, Boris Dimitrov Andreev, Paul Bassett