Phase Or Frequency Patents (Class 340/658)
  • Patent number: 10687901
    Abstract: A method and system to use an augmented reality device in a surgical procedure. The method includes rendering, on the display of the device, a model of a patient reference object; in response to receiving input, moving the model of the patient reference object in an augmented reality coordinate system; determining that the model is aligned with the patient reference object in real world space when viewed through the display and, based on that determination, identifying a first transform from the augmented reality coordinate system to a navigation coordinate system used by an optical navigation system for tracking the patient reference object; subsequently transferring patient image data from the navigation coordinate system to the augmented reality coordinate system using an inverse of the first transform; and displaying the patient image data on the display to augment a real world view of a patient.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: June 23, 2020
    Assignee: Synaptive Medical (Barbados) Inc.
    Inventor: Monroe Milas Thomas
  • Patent number: 10360454
    Abstract: Systems and methods provided for presenting supplemental content in an augmented reality environment where an object within a field of view of an augmented reality device of a user is identified and processed to detect a reference related to a participant in an event. A user profile or user social network is searched to identify a message from the user about the participant. The message may be combined with the object in the augmented reality field of view.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 23, 2019
    Assignee: ROVI GUIDES, INC.
    Inventors: Adam Bates, Jesse F. Patterson, Mark K. Berner, Eric Dorsey, Jonathan A. Logan, David W. Chamberlin, Paul Stevens, Herbert A. Waterman
  • Patent number: 10100815
    Abstract: Frequency analysis units are configured to perform a frequency analysis of vibrations detected by vibration sensors, respectively. A natural frequency detection unit is configured to detect a natural frequency of a wind turbine in accordance with a direction of a nacelle, based on results of the frequency analysis. A change ratio calculation unit calculates a decrease ratio in the natural frequency detected by the natural frequency detection unit. An abnormality detection unit determines that an abnormality is present in the wind turbine if the decrease ratio in the natural frequency calculated by the change ratio calculation unit exceeds a threshold value.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 16, 2018
    Assignee: NTN CORPORATION
    Inventor: Tomoya Sakaguchi
  • Patent number: 9842480
    Abstract: An alarm processing circuit includes a plurality of abnormality detection circuits for detecting different abnormalities and outputting alarm signals respectively; a signal conversion circuit for converting the alarm signals outputted from the plurality of abnormality detection circuits into time signals with time widths corresponding to types of the abnormalities respectively; and a determination circuit for determining the types of the abnormalities respectively based on the time widths of the time signals outputted from the signal conversion circuit.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 12, 2017
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Noriho Terasawa, Yasuyuki Momose
  • Patent number: 9806690
    Abstract: Relay devices and methods of use for detecting and reacting to subsynchronous oscillation events in electrical energy generation and transmission systems, such as but not limited to, subsynchronous control interactions between wind-turbine generators and series-compensated transmission lines.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 31, 2017
    Assignee: AEP Transmission Holding Company, LLC
    Inventors: Yanfeng Gong, Yiyan Xue
  • Patent number: 9671454
    Abstract: A method for detecting a device that generates spurious signals in an electrical network, to which several devices and at least one fault detection device are connected, includes the steps of monitoring the electrical network for electrical spurious signals, sequentially deactivating each device for a predetermined time T when an electrical spurious signal has been detected, and checking the electrical network for the disappearance of the respective spurious signal, and signaling as soon as the respective spurious signal has disappeared upon deactivating a respective device. This makes it possible to especially reliably detect a device in an electrical network that couples an undesired spurious signal into the network.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: June 6, 2017
    Assignee: Airbus Operations GmbH
    Inventors: Henning Everth, Jens Schult
  • Patent number: 9569850
    Abstract: This invention provides a system and method for determining the pose of shapes that are known to a vision system that undergo both affine transformation and deformation. The object image with fiducial is acquired. The fiducial has affine parameters, including degrees of freedom (DOFs), search ranges and search step sizes, and control points with associated DOFs and step sizes. Each 2D affine parameter's search range and the distortion control points' DOFs are sampled and all combinations are obtained. The coarsely specified fiducial is transformed for each combination and a match metric is computed for the transformed fiducial, generating a score surface. Peaks are computed on this surface, as potential candidates, which are refined until a match metric is maximized. The refined representation exceeding a predetermined score is returned as potential shapes in the scene. Alternately the candidate with the best score can be used as a training fiducial.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: February 14, 2017
    Assignee: COGNEX CORPORATION
    Inventors: Guruprasad Shivaram, Lowell D. Jacobson, David Y. Li
  • Patent number: 9563943
    Abstract: Methods and systems for design based sampling and binning for yield critical defects are provided. One method includes aligning each image patch in each inspection image frame generated for a wafer by an optical subsystem of an inspection system to design information for the wafer. The method also includes deriving multiple layer design attributes at locations of defects detected in the image patches. In addition, the method includes building a decision tree with the multiple layer design attributes. The decision tree is used to separate the defects into bins with different yield impacts on a device being formed on the wafer. The method also includes binning the defects with the decision tree.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: February 7, 2017
    Assignee: KLA-Tencor Corp.
    Inventors: Satya Kurada, Raghav Babulnath, Kwok Ng, Lisheng Gao
  • Patent number: 9373173
    Abstract: A method for atlas-based segmentation is provided where a patient image is rigidly registered with each of a plurality of atlas images. Based on the rigid registration results, which indicate a degree of similarity for each atlas, an atlas image is selected for deformable registration where the rigid registration result is used as initialization. Regions of interest are segmented in the patient image using the results of the deformable registration.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: June 21, 2016
    Assignee: RaySearch Laboratories AB
    Inventor: Ola Weistrand
  • Patent number: 9310320
    Abstract: Methods and systems for design based sampling and binning for yield critical defects are provided. One method includes aligning each image patch in each inspection image frame generated for a wafer by an optical subsystem of an inspection system to design information for the wafer. The method also includes deriving multiple layer design attributes at locations of defects detected in the image patches. In addition, the method includes building a decision tree with the multiple layer design attributes. The decision tree is used to separate the defects into bins with different yield impacts on a device being formed on the wafer. The method also includes binning the defects with the decision tree.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: April 12, 2016
    Assignee: KLA-Tencor Corp.
    Inventors: Satya Kurada, Raghav Babulnath, Kwok Ng, Lisheng Gao
  • Patent number: 9269307
    Abstract: A data processing unit, which is operatively coupled within a data center network, is configured to output a first visual indicia, a second visual indicia and a third visual indicia. The first visual indicia includes a set of light outputs, each of which is associated with a port status of a network port of the data processing unit. The second visual indicia includes a set of graphical outputs produced by a display screen, each of which is associated with an operating status of the data processing unit. The third visual indicia includes a set of backlight outputs produced by the display screen, each of which is associated with the operating status of the data processing unit.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: February 23, 2016
    Assignee: Juniper Networks, Inc.
    Inventor: Gunes Aybay
  • Patent number: 8988234
    Abstract: An alarm system for alarming whenever there is a power leakage from an electronic device, includes a voltage decreasing circuit, a switch circuit and an alarm circuit. The voltage decreasing circuit receives a first voltage from a live wire output terminal and outputs a second voltage. The switch circuit outputs a control signal when the power leakage is detected. The switch circuit is electrically connected to a connection port. The connection port is electrically connected to the live wire output terminal and a neutral wire output terminal. The alarm circuit receives the control signal and alarms. If there is power leakage from the electronic device, the first voltage from the live wire input terminal flows into the ground wire input terminal via the electronic device; the switch circuit turns on and the alarm circuit is closed to alarm.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: March 24, 2015
    Assignee: Zhongshan Innocloud Intellectual Property Services Co., Ltd.
    Inventor: Ke-You Hu
  • Publication number: 20140320297
    Abstract: With regard to an instrument wherein a plurality of phase operations are carried out, the type of failure or the phase in which the failure has occurred is determined and, in accordance with the result of the determination, an alarm signal is generated. Provided that the failure details and the phase in which the failure has occurred can be determined from the generated alarm signal, it is possible, using a configuration wherein an alarm signal having a pulse number corresponding to the phase in which a failure has occurred is generated, or a configuration wherein an alarm signal having a pulse width corresponding to the phase in which a failure has occurred is generated, to determine the type of failure that has occurred and the phase in which the failure has occurred from the pulse number and pulse width.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Takahiro MORI, Akira NAKAMORI
  • Patent number: 8842017
    Abstract: The present invention relates to a device and method for displaying the lifecycle of a surge protection device, and more particularly to a device and method for displaying the lifecycle of a surge protection device, which detects an increase in leakage current according to a deterioration in performance of the surge protection device in order to provide notice of a replacement time for the surge protection device. According to the present invention, it is possible to for a user to provide notice of a replacement time by displaying the lifecycle of a surge protection device (SPD) to the outside. Additionally, as another effect of the present invention, it is possible to confirm an amount of leakage current flowing into the ground of the SPD and whether the SPD is properly installed on a ground line by using a current and ground state detecting sensor.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: September 23, 2014
    Assignee: Sungjin Techwin Co., Ltd.
    Inventors: Myung Wook Lee, Young Jun Lee, Sei Hyun Lee
  • Patent number: 8823307
    Abstract: A system, method and computer program product for monitoring including detecting internal faults especially inter-turn faults of a synchronous generator and thus protecting the synchronous generator. The synchronous generator includes a winding for each phase of a power network, a terminal for each phase arranged on a terminal side of the synchronous generator, and connected to the respective winding, the terminals on the terminal side are connected to an electrical power network, and the synchronous generator is arranged to input power to the electrical power network by means of the terminals.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: September 2, 2014
    Assignee: ABB Research Ltd.
    Inventors: Zoran Gajic, Mustafa Ibrahim, Antonis Marinopoulos, Pedro Rodriguez, Jianping Wang, Liwei Wang
  • Patent number: 8816871
    Abstract: The invention relates to a method for monitoring a static and/or dynamic stability of a wind turbine. The wind turbine has a tower, a nacelle, which is supported by the tower, and a rotor, which is mounted in or on the nacelle and has at least one rotor blade which can be adjusted about its longitudinal axis. The method includes the following steps: the wind turbine is excited to oscillate in at least one direction. A frequency (fm) of the excited oscillation is detected. The detected frequency is compared with a predetermined frequency (fref) and an alarm signal is generated if the detected frequency deviates from the predetermined frequency by more than a difference value (?f).
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: August 26, 2014
    Assignee: Nordex Energy GmbH
    Inventors: Detlef Drossel, Ulrich Harms
  • Patent number: 8737453
    Abstract: There is included a detection unit for detecting a magnitude of a surplus of a direct current to a source voltage generated by a voltage generation unit generating the source voltage from the direct current obtained by rectifying a signal inputted from an antenna terminal. A data processing unit operating at the source voltage and performing data processing on a transmission/reception signal includes a clock control unit for determining a frequency of a clock signal for the data processing based on the magnitude of the surplus current detected by the detection unit in a state where a frequency of the clock signal is set to a predetermined reference frequency. Since the power consumed by the data processing unit at the time of detecting the surplus of the direct current is determined by the specific reference frequency, the surplus of the direct current can be detected as an absolute surplus.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: May 27, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Akihiro Toriyama, Kazuki Watanabe, Makoto Shindo, Makoto Toyoshima, Yosuke Tanno
  • Patent number: 8674844
    Abstract: Malfunction of a component within an RF-powered plasma chamber is detected by observing an operating condition of the plasma chamber and detecting when the operating condition deviates from a previously observed range bounded by lower and upper limits. The lower and upper limits are determined by observing the minimum and maximum values of that operating condition during the processing of workpieces throughout one or more plasma chamber cleaning cycles immediately preceding the most recent cleaning of the plasma chamber.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: March 18, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Beom Soo Park, Hong Soon Kim, Soo Young Choi, James Hoffman, Suhail Anwar, John M. White
  • Patent number: 8542125
    Abstract: A system is provided for verifying the performance of an electrical union. The electrical union provides electrical connectivity across an interface between first and second elements which rotate relative to each other. The system includes a signal source associated with the first element. The signal source is adapted to send an electrical signal over the union to the second element using a first signal frequency. The system further includes a frequency modulator associated with the second element. The frequency modulator is adapted to return the electrical signal over the union to the first element using a different second signal frequency. The system further includes a comparator which compares the signal sent by the data source to the signal returned by the frequency modulator. The comparator provides an output which identifies whether a discrepancy exists between the contents of the sent and returned signals.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: September 24, 2013
    Assignee: Rolls-Royce PLC
    Inventor: Aaron J. Stevens
  • Patent number: 8533121
    Abstract: A remote phase identification system identifies the unknown phase attribute of any energized conductor within a three-phase power distribution network. A field probe at a remote location obtains an instantaneous phase measurement at a precise GPS second and communicates this phase, GPS second, and GPS coordinates to a field client. Either wireless Internet or satellite modem communications is used by the field client to retrieve the reference phase taken by a base station at the same GPS second. Field client tagging reference phase configuration files are automatically created for any circuit and applied to the base station reference phase. Configuration files can be named, saved, and loaded and are used by the field client to identify and display the unknown phase attribute. A field client can be any personal computer, smartphone, or personal digital assistant.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: September 10, 2013
    Inventor: Gregory Hubert Piesinger
  • Publication number: 20130187783
    Abstract: A wind turbine condition monitoring method includes the steps of generating in advance a reference curve for normal operation of a transmission chain of a wind turbine using position information, measuring position information and generating an actual condition monitoring curve; comparing the actual condition monitoring curve with the reference curve, and determining the current condition of the wind turbine from the comparison. With the proposed monitoring method, monitoring with a high signal-to-noise ratio can be achieved with minimal or no addition of hardware, such as an ND module; moreover, computational task is greatly reduced, so that the monitoring system can be more easily integrated into the main control system. In addition, the position measurement system is more stable than a vibration measurement system, and the monitoring result is more reliable.
    Type: Application
    Filed: July 27, 2012
    Publication date: July 25, 2013
    Applicant: Winergy AG
    Inventors: Xi Hu, Qing Gang Wang, Jian Hui Xing, Yue Zhuo
  • Patent number: 8416093
    Abstract: A machine includes at least one piston and a pump shaft. A method for detecting a leak in the machine includes receiving a vibration signal from a vibration sensor disposed on at least one of an upstream pipe and a downstream pipe of the machine, receiving a rotational speed signal and an angular shaft position signal from a speed and position sensor disposed on the machine, calculating a rotational speed and an angular shaft position of the pump shaft, calculating at least one complex harmonic Fourier amplitude of the received vibration signal, low pass filtering the at least one complex harmonic Fourier amplitude, calculating a deviation amplitude as a magnitude of a complex difference between the filtered amplitude and a base amplitude, and monitoring the deviation amplitude to detect a leakage.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: April 9, 2013
    Assignee: National Oilwell Norway AS
    Inventor: Age Kyllingstad
  • Publication number: 20130063280
    Abstract: Described herein are embodiments of methods, devices and systems of phase functionality for a meter. One aspect comprises a method of phase functionality for a meter. One embodiment of the method comprises determining a load value for each phase of a poly-phase electrical system; comparing, using a processor, the load value for each phase of a poly-phase electrical system with a respective threshold value for each phase of the poly-phase electrical system; and opening or closing one or more relays based on the comparison, wherein the one or more relays are each associated with respective phase of the poly-phase electrical system.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Inventors: Balakrishna Pamulaparthy, George Paul Gerdan
  • Patent number: 8395505
    Abstract: Methods and apparatuses for selecting a subset of RFID tags are provided in some embodiments. These methods and apparatuses utilize the susceptibility to light by persistent nodes found in passive tags. Light can be used to intentionally reduce persistence times in a particular subset tags or even an individual tag. Then, persistent nodes can be used as a selection criterion to distinguish previously illuminated tags from non-illuminated tags. In other embodiments, a power circuit receives a RF input source and generates a direct current (DC) output voltage. The circuit includes a bias circuit to supply a gate to source bias, which is independent of the DC output voltage. The circuit further includes a voltage multiplier circuit that is coupled to the bias circuit. The voltage multiplier circuit has MOS transistors with one transistor to receive the gate to source bias.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: March 12, 2013
    Assignee: Alien Technology Corporation
    Inventors: Mark Alfred Hadley, James Harold Atherton, Jay Tu, Edward John Boling, John Stephen Smith
  • Patent number: 8339270
    Abstract: An apparatus and method for protecting against electrocution hazards that arise when an appliance is electrically connected to a miswired single-phase AC electrical source which includes an energized ground lead are described. The apparatus includes one or more sensors that detect electrical energy in the ground lead combined with a miswiring condition in the hot and common leads. A tester embodiment is also illustrated. The method includes the steps of detecting if the putative ground of the electrical source is energized and whether the hot and common leads are reversed.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: December 25, 2012
    Assignee: General Wire Spring Company
    Inventors: Arthur A. Silverman, Anton D. Pfeiffer
  • Publication number: 20120319855
    Abstract: According to the present invention, a signal display device includes: a first characteristic value measurement unit, a display unit, a second characteristic value measurement unit, and a display form changing unit. The first characteristic value measurement unit measures any one of characteristic values of a signal to be measured, and the display unit displays the characteristic value measured by the first characteristic value measurement unit while the characteristic value is associated with time. The second characteristic value measurement unit measures any one of the characteristic values of the signal to be measured, and the display form changing unit changes a display form on the display unit according to the characteristic value measured by the second characteristic value measurement unit.
    Type: Application
    Filed: April 30, 2012
    Publication date: December 20, 2012
    Applicant: ADVANTEST CORPORATION
    Inventor: Yuichiro HARADA
  • Publication number: 20120139740
    Abstract: The invention relates to a method for monitoring a static and/or dynamic stability of a wind turbine. The wind turbine has a tower, a nacelle, which is supported by the tower, and a rotor, which is mounted in or on the nacelle and has at least one rotor blade which can be adjusted about its longitudinal axis. The method includes the following steps: the wind turbine is excited to oscillate in at least one direction. A frequency (fm) of the excited oscillation is detected. The detected frequency is compared with a predetermined frequency (fref) and an alarm signal is generated if the detected frequency deviates from the predetermined frequency by more than a difference value (?f).
    Type: Application
    Filed: December 2, 2011
    Publication date: June 7, 2012
    Inventors: Detlef Drossel, Ulrich Harms
  • Patent number: 8174400
    Abstract: Abnormal conditions within an RF-powered plasma process chamber are detected by detecting whether the frequency of a variable-frequency RF power supply moves outside established lower and upper limits. In a first aspect, a first pair of lower and upper limits are established as a function of the frequency of the power supply sampled after a new process step begins or after a sample control signal changes state. In a second aspect, a second pair of lower and upper limits are not adapted to the frequency of the power supply. Both aspects preferably are used together to detect different occurrences of abnormal conditions.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: May 8, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Beom Soo Park, Soo Young Choi, John M. White, Hong Soon Kim, James Hoffman
  • Patent number: 8174360
    Abstract: The invention relates to a communication apparatus for automatically setting up a data connection between two intelligent devices (10, 20, 30). The apparatus comprises a coil (13, 23, 33) for carrying out a contactless data exchange which is part of a transmission oscillator (50), a communication element (12, 22) which is connected to the coil (13, 23, 33) and the data processing component (11, 21) of an intelligent device (10, 20, 30) and emits search signals via the coil (13, 23, 33) to receive a response from another intelligent device (10, 20, 30), a measuring device (14, 24) for monitoring a property of the transmission oscillator (50), which outputs a control signal when ascertaining a change in the monitored property, and a switching apparatus (15, 25) which is connected to the measuring device (14, 24) and the communication element (12, 22) and which switches on the communication element (12, 22) when it has received a control signal from the measuring device (14, 24).
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 8, 2012
    Assignee: Giesecke & Devrient GmbH
    Inventor: Klaus Finkenzeller
  • Publication number: 20110241892
    Abstract: Abnormal conditions within an RF-powered plasma process chamber are detected by detecting whether the frequency of a variable-frequency RF power supply moves outside established lower and upper limits. In a first aspect, a first pair of lower and upper limits are established as a function of the frequency of the power supply sampled after a new process step begins or after a sample control signal changes state. In a second aspect, a second pair of lower and upper limits are not adapted to the frequency of the power supply. Both aspects preferably are used together to detect different occurrences of abnormal conditions.
    Type: Application
    Filed: March 7, 2011
    Publication date: October 6, 2011
    Inventors: Beom Soo Park, Soo Young Choi, John M. White, Hong Soon Kim, James Hoffman
  • Patent number: 8013757
    Abstract: Registering energy consumption in part of a building, an item of state information of at least one energy load being acquired, the state information being transmitted to a control center, and the state information, a state duration and a specific statement of the consumption of the energy load being used to determine and evaluate the energy consumption in the control center. It is possible to dispense with separate energy consumption measuring units as a result of the energy consumption being registered by multiplying the switched-on duration by a specific statement of the energy consumption (that is to say power) of the energy load.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: September 6, 2011
    Assignee: Siemens Enterprise Communications GmbH & Co. KG
    Inventors: Lutz Bardehle, Dieter Klaus, Thorsten Laux
  • Publication number: 20110136454
    Abstract: A system and method of visually providing the current status of selected frequencies of particular interest to the user of an entertainment system and in particular, of a vehicle entertainment system.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 9, 2011
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: T.C. Wingrove, Anthony Ciatti
  • Publication number: 20110074593
    Abstract: A theft warning system includes a first electronic device and a second electronic device. The first electronic device is configured for transmitting monitoring signals, wherein the frequency of the monitoring signals is capable of changing according to change in the voltage supplied to the first electronic device. The second electronic device communicates with the first electronic device by receiving the monitoring signals transmitted by the first electronic device, and generating alarms when a frequency of the received monitoring signals is changed. A theft warning method applied to the electronic device is also provided.
    Type: Application
    Filed: April 30, 2010
    Publication date: March 31, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: LUNG DAI
  • Patent number: 7902991
    Abstract: Abnormal conditions within an RF-powered plasma process chamber are detected by detecting whether the frequency of a variable-frequency RF power supply moves outside established lower and upper limits. In a first aspect, a first pair of lower and upper limits are established as a function of the frequency of the power supply sampled after a new process step begins or after a sample control signal changes state. In a second aspect, a second pair of lower and upper limits are not adapted to the frequency of the power supply. Both aspects preferably are used together to detect different occurrences of abnormal conditions.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: March 8, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Beom Soo Park, Soo Young Choi, John M. White, Hong Soon Kim, James Hoffman
  • Publication number: 20100302026
    Abstract: A warning system includes a monitoring device and a controlled device, wherein the controlled device includes a wireless transmitter, a wireless receiver, a phase analyzer and a warning indicator. The wireless transmitter can transmit a detection signal, and then the controlled device responses to the detection signal and transmits a feedback signal. The wireless receiver can receive the feedback signal. The phase analyzer can analyze a phase difference between the detection signal and the feedback signal. The warning indicator can perform a warning action when the phase difference is greater than a preset value. Moreover, a method for monitoring a controlled device is disclosed in specification.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 2, 2010
    Applicant: INVENTEC APPLIANCES CORP.
    Inventor: Shang LI
  • Patent number: 7821414
    Abstract: A polyphase source detecting circuit configured for detecting a polyphase source having three sources includes three sampling circuits and an alarm circuit. Each sampling circuit has a control switch. A control terminal of the control switch of each sampling circuit is connected to one of the phase sources of the polyphase source respectively. The alarm circuit has a first transistor, a first LED, and a buzzer. The anode of the first LED is connected to a power supply. The cathode of the first LED is connected to the base of the first transistor and connected to ground via the control switches of the sampling circuits in turn. The collector of the first transistor is connected to the power supply via the buzzer. The emitter of the first transistor grounded.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 26, 2010
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Ying Chen, Jin-Liang Xiong
  • Publication number: 20100231398
    Abstract: An RF test and measurement device, including a front end for receiving a time-varying signal and a real-time engine for generating digital frequency domain spectrums based on the time-varying signal. The device also includes a memory subsystem containing a frequency domain bitmap which is updated through sequential receipt and storage of the digital frequency domain spectrums. The real time engine is further configured to monitor the frequency domain bitmap for occurrence of a signal characteristic, and in response to detection of the signal characteristic, cause a capture of the time-varying signal into a storage location of the RF test and measurement device.
    Type: Application
    Filed: September 28, 2009
    Publication date: September 16, 2010
    Applicant: TEKTRONIX, INC.
    Inventors: Kathryn A. Engholm, Edward C. Gee, Alfred K. Hillman, JR., David Eby
  • Patent number: 7796048
    Abstract: A polyphase source detecting circuit configured for detecting a polyphase source having at least two phase sources includes at least two sampling circuit and an alarm circuit. Each sampling circuit has a control switch. A control terminal of the control switch of each sampling circuit is connected to one of the phase sources of the polyphase source respectively. The alarm circuit has a first transistor, a first LED, and a second LED. The anodes of the first and second LEDs are connected to a power supply. The cathode of the first LED is connected to the gate of the first transistor and connected to ground via the control switches of the sampling circuits in turn. The cathode of the second LED is connected to the drain of the first transistor. The source of the first transistor grounded.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: September 14, 2010
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Jin-Liang Xiong, Yong-Xing You
  • Patent number: 7791309
    Abstract: The present invention relates a motor controller and a motor control method of controlling a motor having a stator coil and a rotator.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: September 7, 2010
    Assignee: LG Electronics Inc.
    Inventors: Sun Ho Hwang, Han Su Jung, Chung Hun Lee
  • Patent number: 7769497
    Abstract: A method of performing loadflow calculations for controlling voltages and power flow in a power network by reading on-line data of given/specified/scheduled/set network variables/parameters and using control means, so that no component of the power network is overloaded as well as there is no over/under voltage at any nodes in the network following a small or large disturbances.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 3, 2010
    Inventor: Sureshchandra B. Patel
  • Publication number: 20100188239
    Abstract: A system and method of monitoring a plurality of electrical assets comprise an electricity distribution infrastructure, including a plurality of electrical asset sensors coupled to the electrical assets for monitoring an operating condition of the electrical assets as well as any fault conditions. The sensors may include a current transformer for obtaining a current waveform, a GPS receiver for applying a synchronized time-stamp to the waveform data, and a mesh network radio for transmitting the time-stamped waveform data. Data from the plurality of sensors may be encrypted and transmitted over a mesh network to one or more gateways that are in communication with a central command processor. In response to an abnormal operating condition of any electrical asset, the central command processor may determine a probable fault location, a probable fault type, and a fault response.
    Type: Application
    Filed: April 8, 2010
    Publication date: July 29, 2010
    Inventor: Daniel Rockwell
  • Publication number: 20100141463
    Abstract: A notification device and method associated therewith for notifying an electric power consumer to reduce electric power consumption when the notification device detects selected power system conditions. The notification device detects conditions on the electric power system that would likely be alleviated by a reduction in consumer power consumption and provides a visual and/or audible notification to the consumer accordingly. The condition may be indicative of strains on the electric power system and/or higher cost of electricity distributed to the consumer. The condition may be induced by the electric power utility. The notification device and method disclosed herein allow the consumer to decide whether to reduce power consumption as is practical for the consumer.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 10, 2010
    Inventor: Edmund O. Schweitzer, III
  • Patent number: 7683798
    Abstract: A current monitoring device (CMD) with a set of electromagnetic field sensors located within one or more grounded housings positioned within the combined electromagnetic fields generated by one or more electric power lines. The CMD includes electronics, typically located within the grounded housings, defining impedance networks that combine the measurements received from the field sensors to create output signal indicative of electric current values for the phase conductors. The housings can be conveniently attached and to transmission line towers, distribution line poles, and high voltage power line supports in transmission and distribution substations. The CMD controls response equipment, such as a circuit interrupter that responds to current disturbances detected by the CMD. The CMD may also include communication for sending the current values to a remote controller, such as a central control station, that implements a wide range of response equipment.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: March 23, 2010
    Assignee: SSI Power, LLC
    Inventor: Joseph R. Rostron
  • Publication number: 20100013631
    Abstract: A method and apparatus of recognizing an alarm scenario in a chip card. The method includes detecting a deviation of a property, and determining whether the deviation is a result of an alarm scenario.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 21, 2010
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Peter LAACKMANN, Marcus JANKE
  • Patent number: 7642923
    Abstract: A sensor for detecting position and/or movement in space and/or for detecting fluid-properties comprising at least one transmitter and at least one receiver which are enclosed by a fluid, characterized in that the at least one transmitter generates cyclic fluid density fluctuations and the at least one receiver detects the change in transit time and/or the phase shift and/or the frequency change and/or the amplitude change.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: January 5, 2010
    Assignee: Heinz Ploechingev
    Inventor: Heinz Ploechinger
  • Publication number: 20090276173
    Abstract: A system for real-time monitoring of synchrophasors from an electrical power system serving multiple geographic areas can control system instability, without preset parameters or thresholds, detects power flow between the generation sources. If a change in power flow of at least 5% over at time period of 1 second or less occurs and the response to the change in power flow is greater than the change in power flow a signal is generated for corrective action.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 5, 2009
    Applicant: SOUTHERN CALIFORNIA EDISON
    Inventors: Shimo Wang, Anthony Paul Johnson
  • Patent number: 7590499
    Abstract: Aspects of the invention provide apparatuses, methods, and systems that support measuring and conveying energy consumption by an electrical device. An apparatus includes an energy sensor that measures an incremental energy value consumed by an electrical device. Apparatus obtains the incremental energy value, accumulates an energy usage measurement in accordance with the incremental energy value, provides requested information about energy consumption of the electrical device in response to a request from a network controller, and adjusts the energy usage measurement in accordance with the requested information. The total energy consumption may be partitioned into at least one energy component, in which the at least one energy component corresponds to the energy consumption of the electrical device during an associated time interval. A network controller may use the energy consumption information to determine a new set temperature for a thermostat unit that instructs the device control logic.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: September 15, 2009
    Assignee: Computime, Ltd.
    Inventors: Wai-leung Ha, Kairy Kai Lei
  • Publication number: 20090102673
    Abstract: A polyphase source detecting circuit configured for detecting a polyphase source having at least two phase sources includes at least two sampling circuit and an alarm circuit. Each sampling circuit has a control switch. A control terminal of the control switch of each sampling circuit is connected to one of the phase sources of the polyphase source respectively. The alarm circuit has a first transistor, a first LED, and a second LED. The anodes of the first and second LEDs are connected to a power supply. The cathode of the first LED is connected to the gate of the first transistor and connected to ground via the control switches of the sampling circuits in turn. The cathode of the second LED is connected to the drain of the first transistor. The source of the first transistor grounded.
    Type: Application
    Filed: December 17, 2007
    Publication date: April 23, 2009
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen)CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jin-Liang Xiong, Yong-Xing You
  • Patent number: 7514932
    Abstract: A signal analyzer for calculating the power consumption and power factor of a three-phase power system driving a motor includes logic that determines whether the analyzer's own input terminals are wired in a proper or inverted manner. To do this, the signal analyzer observes a pattern of zero crossing slope values of the three line-to-line voltages of the three-phase power system and observes a pattern of zero crossing slope values of the current in the three power lines. The analyzer also compares the slope of a voltage signal as the signal passes through zero volts and the sign of a corresponding current signal that exists as the voltage signal crosses zero volts. Based on the observed voltage and current patterns and the voltage-to-current relationships, the analyzer can positively identify which of a plurality of inputs or signal wires are inverted.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: April 7, 2009
    Assignee: Trane International Inc.
    Inventors: Michael W. Murry, Matthew A. Shepeck, Dennis L. Justin
  • Publication number: 20090045803
    Abstract: System and methods in which endpoint control devices, such as, for example, switches and wall sockets, are arranged to monitor the power used by the controlled load as well as the power-factor of the load. In one embodiment, the monitored power and power-factor of a controlled device is fed back to a central point within the premises and then sent on to a more global monitoring point. In one embodiment, the endpoint device can send power parameter data to another location and receive instructions as to maximum allowable loads for a given power parameter or power-factor.
    Type: Application
    Filed: July 7, 2008
    Publication date: February 19, 2009
    Applicant: Optimal Innovations Inc.
    Inventor: Roland Schoettle