Patents Issued in January 14, 2010
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Publication number: 20100007305Abstract: The present invention concerns a battery system including at least one battery unit for storing electric energy for use in connection with equipment, such as comfort equipment and/or safety equipment on a vehicle, preferably on a bicycle, as well as a bicycle with such a battery system. The new feature of a battery unit according to the invention is that the exterior of the battery unit is shaped as a seat, preferably a bicycle seat, where the battery unit at least comprises a number of interconnected battery cells, at least one terminal for connecting to equipment and/or charging the battery, and where the battery unit includes at least one outer casing which constitutes the surface of the seat.Type: ApplicationFiled: August 30, 2007Publication date: January 14, 2010Applicant: PROTANIUM B.V.Inventor: Lars Munksoe
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Publication number: 20100007306Abstract: Provided is a charging cable capable of detecting an abnormal state, such as a break, of a control line through which a pilot signal is transmitted, the charging cable including: a power cable through which an external power source feeds a power storage device; a signal generating circuit for generating a control signal to output to a vehicle; a control line L1 through which the control signal is transmitted to the vehicle; and a bypass circuit for changing a voltage applied from a vehicle side through the control line L1.Type: ApplicationFiled: July 6, 2009Publication date: January 14, 2010Applicants: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Satoshi FUKUI, Kenichi ISHII, Ryuichi KAMAGA, Masahiro KARAMI
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Publication number: 20100007307Abstract: The present invention provides wireless power supply systems that wirelessly supply power to a remote device for rapidly charging a charge storage capacitor, which charges a battery with the power stored in the charge storage capacitor. This allows the remote device to be positioned near the inductive power supply for rapid charging of the charge storage capacitor and allows battery charging to continue even after the remote device is removed from the inductive power supply.Type: ApplicationFiled: July 9, 2009Publication date: January 14, 2010Applicant: ACCESS BUSINESS GROUP INTERNATIONAL LLCInventors: David W. Baarman, Hai D. Nguyen, Joshua B. Taylor, Joshua K. Schwannecke, Matthew J. Norconk
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Publication number: 20100007308Abstract: The present invention relates to a charge equalization apparatus, which can enable the primary windings and the secondary windings of transformers to be easily manufactured, can control the flow of charges into batteries depending on the charged states of series-connected batteries, and can prevent overcurrent from flowing into batteries that are currently being charged.Type: ApplicationFiled: February 5, 2008Publication date: January 14, 2010Inventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Chong Eun Kim, Hong Sun Park, Chol Ho Kim
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Publication number: 20100007309Abstract: The method for determining the state of charge of a battery can be used during charging or discharging of the battery at constant current. It comprises placing the battery in open circuit during a recovery period until the voltage at the terminals of said battery stabilizes at a voltage plateau. Then a constant test voltage is applied to the battery terminals during a preset test period. The state of charge of the battery corresponds to the current measured at the end of the test period by means of a previously obtained calibration curve.Type: ApplicationFiled: July 9, 2009Publication date: January 14, 2010Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Remy Mingant, Sebastien Martinet, Christine Lefrou
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Publication number: 20100007310Abstract: A battery pack includes: an obtaining unit for obtaining computation information for calculating a charge current including temperature information of a battery; a computation unit for computing a charge current for the battery based on the computation information; and a notification unit for notifying a computer of the charge current computed by the computation unit. The notification unit uses a dedicated command to notify the computer of the charge current. The battery pack includes: a storage unit for storing therein a first threshold value and a second threshold value relating to the temperature information, and the computation unit may compute the optimal charge current depending on which of ranges divided by the first threshold value and the second threshold value the temperature information belongs to.Type: ApplicationFiled: June 30, 2009Publication date: January 14, 2010Applicant: Sony CorporationInventors: Daisuke Kawamoto, Satoshi Okachi, Kenichiro Kamijo, Seiji Tsukada, Keisuke Koide, Norio Fujimori, Hidetoshi Shimada
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Publication number: 20100007311Abstract: The application concerns a battery module, comprising cells, two external terminals, a message communication infrastructure, a module control unit comprising a message processing unit, connected to the infrastructure to send and receive messages. According to the application, at least two of the message systems chosen from among: a first message system for cell characterization, a second message system for cell forming, and a third message system for utilization of a battery pack comprising several modules connected via their user terminals, when the pack is associated with a consumer machine for the purpose of supplying it with electric energy, are provided in the message processing unit, which is able to be configured into any one of the message systems.Type: ApplicationFiled: February 1, 2008Publication date: January 14, 2010Applicant: BATSCAPInventors: Jacques Colin, Jean-Jacques Jestin, Christian Sellin
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Publication number: 20100007312Abstract: An apparatus and method for allowing continuous operation of a generator control unit (GCU) despite a ground fault short circuit is disclosed. More specifically, a generator control unit (GCU) that maintains an isolated power pass domain in a completely floating set up with respect to the ground referenced control domain is used to allow continuous operation of a generator control unit (GCU) even when an internal wiring such as a permanent magnet generator wire or a generator field coil wire comes in contact with the chassis due to failure of the insulation. In addition, the apparatus and method also utilizes a high ohmic resistor as the only connection between the isolated power pass domain and the ground referenced control domain to control the voltage spike that occurs during a ground fault short circuit.Type: ApplicationFiled: July 10, 2008Publication date: January 14, 2010Inventor: Plamen Petkov
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Publication number: 20100007313Abstract: Excitation control circuitry for a synchronous generator is disclosed. The synchronous generator is of a type comprising a main machine (2) and an exciter (6) for exciting the main machine. The excitation control circuitry comprises an automatic voltage regulator (10) for controlling power flow from the main machine to the exciter, and an excitation boost system (14) for selectively supplying power from a second source of electrical power (12) to the exciter (6). This can allow additional excitation to be provided, for example, when the generator is in overload. This arrangement can allow a synchronous generator to be upgraded by adding the excitation boost system to provide enhanced overload performance.Type: ApplicationFiled: August 6, 2009Publication date: January 14, 2010Applicant: CUMMINS GENERATOR TECHNOLOGIES LIMITEDInventors: Nigel Jakeman, Michael John Wright, Denis Hadley Dalby, Neil Brown
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Publication number: 20100007314Abstract: A reactance (capacitive and/or inductive) module that may be connected to an electrical power system of a real estate property such as a residential or commercial property. If the electrical power system has a net reactance power that is degrading a power factor of the electrical power system, the reactance module may compensate at least in part for this net reactance power by turning on and off various reactance banks. For instance, net inductance can be compensated for by turning capacitive banks on and off An external monitoring entity may receive remote communications from the reactive bank, allowing the external entity to track energy savings, energy credits, and perhaps even control the reactance module to improve power factor.Type: ApplicationFiled: July 13, 2009Publication date: January 14, 2010Applicant: Green Equity, LLCInventors: Lovell Brent Ivie, Douglas T. Stuart
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Publication number: 20100007315Abstract: The present invention discloses a high-efficiency power supply device and its control method. The power supply device includes a power conversion circuit and a load balance detection circuit. The power conversion circuit is connected to at least one set of switch module through an electric circuit, a resistor connected in parallel with the switch module, and a power output load terminal for driving a load. The load balance detection circuit is connected to the power conversion circuit and the switch module, such that the load balance detection circuit can detect whether or not a load driven by one or more sets of power output load terminals is balanced. If the driven load is not balanced, then the one or more sets of resistor will be in a closed circuit status to achieve a load balance.Type: ApplicationFiled: July 9, 2008Publication date: January 14, 2010Applicant: ENERMAX TECHNOLOGY CORPORATIONInventor: Chien Kuei Hsu
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Publication number: 20100007316Abstract: A current sense device for a power transistor is described. The power transistor is formed in a cellular structure including a cellular array of transistor cells. The current sense device includes multiple transistor cells in the cellular array of transistor cells of the power transistor being used as sense transistor cells. The sense transistor cells are evenly distributed throughout the cellular array where the source terminal of each sense transistor cell is electrically connected to a first node through a metal line in the first metal layer and through a metal line in the second metal layer where the metal lines are electrically isolated from the metal lines connecting the transistor cells of the power transistor. The sense transistor cells measure a small portion of the current flowing through the power transistor based on the size ratio of the current sense device and the power transistor.Type: ApplicationFiled: July 8, 2008Publication date: January 14, 2010Applicant: Micrel, Inc.Inventors: Ira G. Miller, Eduardo Velarde
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Publication number: 20100007317Abstract: A buck-boost PFC converter is provided and includes an inductor, first and second transistors, a first diode, and a control circuit. The inductor has a first terminal and a second terminal. The first transistor is coupled to a positive-power rail and the first terminal of the inductor. The second transistor is coupled to the second terminal of the inductor and a negative-power rail. The first diode is connected from the second terminal of the inductor to an output of the buck-boost PFC converter. The control circuit generates a first signal and a second signal coupled to control the first transistor and the second transistor respectively. The first signal is utilized to turn on the first transistor for conducting the positive-power rail to the inductor. The second signal is utilized to turn on the second transistor for conducting the inductor to the negative-power rail.Type: ApplicationFiled: January 22, 2009Publication date: January 14, 2010Applicant: SYSTEM GENERAL CORPORATIONInventor: Ta-Yung YANG
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Publication number: 20100007318Abstract: Circuits and methods to detect a threshold for entering and leaving a discontinuous current mode of a buck converter have been disclosed. A buck converter is switched to continuous mode if the filtered battery current has reached a defined threshold current Ithccm. In order to expedite the transition from DCM mode to CCM mode the time delay between two or more pulses of a current through an inductor is monitored and the buck converter is switched to CCM mode if this time delay is smaller than a defined threshold.Type: ApplicationFiled: July 15, 2008Publication date: January 14, 2010Inventor: Martin Faerber
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Publication number: 20100007319Abstract: A converter device which is configured by connecting three converter circuits in parallel is provided between a secondary battery serving as a first power supply and a fuel cell serving as a second power supply. Two differential ammeters are placed on three reactors corresponding to the three converter circuits. A control unit includes a passing electric power calculation module which calculates electric power passing through the converter device on the basis of detected values of the two differential ammeters, an electric power equalization module which performs equalization of passing electric power between the respective converter circuits which constitute the converter device, a module for changing the number of drive phases which changes the number of drive phases of the converter device in response to the passing electric power, and a voltage conversion control module which controls the converter device and executes a desired voltage conversion.Type: ApplicationFiled: October 1, 2007Publication date: January 14, 2010Inventors: Kota Manabe, Takahiko Hasegawa, Hiroyuki Imanishi
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Publication number: 20100007320Abstract: A circuit comprises a first input for receiving a supply voltage and a second input for receiving a sensed current signal from an output of a DC to DC converter. The circuit also includes an output voltage for providing an adjustable drive voltage to a drive circuit. The circuit additionally includes circuitry for adjusting the drive voltage responsive to supply voltage and the sensed current signal.Type: ApplicationFiled: September 21, 2009Publication date: January 14, 2010Applicant: INTERSIL AMERICAS INC.Inventors: Weihong Qiu, Ben Dowlat, Rami Abou-Hamze, Steven Laur
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Publication number: 20100007321Abstract: A dynamic electrical converter system configured to receive a variable voltage input which is then converted to a proper electrical configuration for a load. The converter assembly utilized multiple converters, each of which is configured to accept a unique range of voltages and from these voltages creating the desired electrical output configuration. A monitor checks the incoming voltage and by controlling switches going to each of the converters, selectively closes the circuit to the appropriate converter; thereby, routing the incoming voltage to the converter capable of addressing the incoming voltage.Type: ApplicationFiled: September 4, 2008Publication date: January 14, 2010Inventor: Mark Ellery Ogram
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Publication number: 20100007322Abstract: A resistor unit is adapted for use in a constant current source circuit or a temperature compensating circuit for providing temperature compensation to a constant voltage reference circuit. The resistor unit includes at least one first resistor, and at least one second resistor coupled to the first resistor. One of the first and second resistors is a positive temperature coefficient resistor. The other one of the first and second resistors is a negative temperature coefficient resistor. Because a temperature characteristic of the first resistor is opposite to that of the second resistor, an effective resistance of the resistor unit changes in a relatively narrower range with temperature.Type: ApplicationFiled: January 12, 2009Publication date: January 14, 2010Applicant: Mobien CorporationInventor: Li-Wei Huang
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Publication number: 20100007323Abstract: A control apparatus of a DC-DC converter includes a reactor and a switching element, repeats an accumulation and a discharge of energy of the reactor by a switching operation of the switching element, and converts a direct-current input voltage to acquire a direct-current output voltage. The control apparatus includes: a current value acquiring unit that acquires current values of the reactor in a current rising section and a current descending section of a current waveform of the reactor at a time interval of a half of a switching period of the switching element; and a center value estimating unit that estimates a center value of a current of the reactor based on the current values acquired in the current rising section and the current descending section.Type: ApplicationFiled: July 13, 2009Publication date: January 14, 2010Applicant: Toyota Jidosha Kabushiki KaishaInventors: Shintaro Tsujii, Hichirosai Oyobe, Kenji Yamada
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Publication number: 20100007324Abstract: The invention relates to a temperature-independent voltage reference circuit. The circuit comprises a first circuit of bandgap type providing a first-order temperature-stable voltage, on the basis of a bipolar transistor base-emitter voltage having a negative slope of variation as a function of temperature, and of a voltage or a current having a positive slope of variation as a function of temperature provided by a generator of current proportional to absolute temperature. The base currents of the PMOS transistors thereof are compensated in such a manner that the output current is proportional to a collector current and not an emitter current.Type: ApplicationFiled: October 5, 2007Publication date: January 14, 2010Applicant: E2V SEMICONDUCTORSInventors: Thierry Masson, Jean-Francois Debroux, Pierre Coquille
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Publication number: 20100007325Abstract: A hose fault detection system includes a hose assembly and a fault detector. The hose assembly includes a first conductive layer, second conductive layer, and an intermediate layer that is disposed between the first and second conductive layers. Each of the first and second conductive layers has an electrical characteristic. The fault detector is configured for detecting an electrical change based on the electrical characteristic to signify a potential impending failure of at least one of the first and second conductive layers of the hose. The fault detector includes a sensing device, a recording device and a digital processor. The sensing device is in electrical communication with the first and second conductive layers to measure the electrical characteristic. The recording device is configured for storing the measured electrical characteristic.Type: ApplicationFiled: July 8, 2009Publication date: January 14, 2010Applicant: Eaton CorporationInventor: Jason Dennis Stark
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Publication number: 20100007326Abstract: [Object] To realize a small size and high detection accuracy in a substance detection apparatus. [Solving Means] A charge detection field effect transistor and a control circuit therefor are provided in each cell, and the control circuit controls the charge detection field effect transistor so that the drain-source voltage and the drain current of the charge detection field effect transistor are always maintained constant. The control circuit may be formed in a CMOS configuration including a small number of elements in a small area using a standard CMOS integrated circuit technique.Type: ApplicationFiled: July 11, 2007Publication date: January 14, 2010Inventor: Kazuo Nakazato
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Publication number: 20100007327Abstract: Provided is a measurement apparatus that measures a current flowing through a load, including a power supply section that outputs a current supplied to the load; a current measuring section that measures a load current flowing between the load and the power supply section; a switch that is connected in parallel with the current measuring section between the load and the power supply section; and a control section that disconnects the switch during measurement of the load current and connects the switch when the load current falls outside of a predetermined reference range.Type: ApplicationFiled: July 11, 2008Publication date: January 14, 2010Applicant: ADVANTEST CORPORATIONInventors: HIROKI ANDOH, KUNIHIRO MATSUURA, SATOSHI KODERA
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Publication number: 20100007328Abstract: A power circuit comprises a power transistor for feeding a load current to a load, a measuring transistor for coupling out a measurement current dependent on the load current, at least two coupling transistors for dividing the measurement current into an internal measurement current and into an external measurement current, wherein the external measurement current can be fed to an external evaluation circuit, and the internal measurement current is fed to an internal evaluation circuit for evaluation. A third coupling transistor can be coupled to the measuring transistor if a measuring device determines a non-coupled state, and the third coupling transistor can be decoupled from the measuring transistor if the measuring device determines a coupled state. The measuring device determines the coupled state if the external evaluation device is coupled to the power circuit, and the measuring device determines a non-coupled state if the external evaluation device is not coupled to the power circuit.Type: ApplicationFiled: July 8, 2009Publication date: January 14, 2010Inventors: Rainald Sander, Steffen Thiele, Markus Winkler
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Publication number: 20100007329Abstract: A device, in particular, a multi-channel oscilloscope, for the analysis of at least one measured signal transmitted via a multi-channel system, with several measurement channels. The device includes in each case a sampling device, a baseband mixing device, and a filter device, and an analysis device. The measured signal is supplied to the measurement channels and to the respective sampling devices for simultaneous sampling. The sampled measured signal is supplied to the baseband mixing devices connected downstream of the sampling devices for the mixing of the measured signal down into the baseband, to the filter devices connected downstream of the baseband mixing devices for the decimation of the sampled values of the measured signal in the baseband and to the analysis device connected to the filter devices for the analysis of the measured signal.Type: ApplicationFiled: July 10, 2007Publication date: January 14, 2010Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Thomas Kuhwald, Markus Freidhof
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Publication number: 20100007330Abstract: The invention is directed to a novel phase-shift detector capable of interfacing with an array of sensors. The detector is light-weight, portable and capable of fitting within the palm of a hand. The detector may be used in conjunction with a variety of diagnostic, biosensor and chemical sensor applications.Type: ApplicationFiled: January 30, 2008Publication date: January 14, 2010Applicant: DREXEL UNIVERSITYInventors: Wan Y. Shih, Wei-Heng Shih
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Publication number: 20100007331Abstract: A self-balancing Wheatstone bridge that provides frequency and power information. The frequency information obtained can be applied to correct the power measurement to provide excellent match, excellent frequency insensitivity, good dynamic range, good frequency range, and adequate frequency accuracy. The system is highly responsive, simple, and cost effective.Type: ApplicationFiled: September 26, 2007Publication date: January 14, 2010Applicant: LADYBUG TECHNOLOGIES, INC.Inventors: Richard R. Hawkins, Jon R. Sigler
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Publication number: 20100007332Abstract: In order to detect and evaluate changes in current as a result of electric arcs, a sensor signal, differentiated on the basis of time, is produced with a sensor-dependent frequency bandwidth whose upper cutoff frequency is 40 MHz and whose lower cutoff frequency is 100 kHz. The sensor signal is taken and an evaluation signal is produced with an upper cutoff frequency of less than or equal to 10 MHz. The evaluation signal is compared with a threshold value and a normalized signal is produced, and a pulse duration of the signal is extended to a prescribed time value.Type: ApplicationFiled: September 18, 2009Publication date: January 14, 2010Applicant: ELLENBERGER & POENSGEN GMBHInventors: Michael Naumann, Markus Miklis
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Publication number: 20100007333Abstract: The present invention provides a wide area protection control measurement system and method which excels in economy, reliability and expandability, in which applied arithmetic operation functions for protection, control and measurement can be freely added and changed, without adding or changing power monitoring terminals to be installed in the electric-supply station. The wide area protection control measurement system is configured from N number of power monitoring terminals 1 installed in an electric-supply station in a target range, one electric quantity aggregation device 3 connected with these power monitoring terminals 1 via a communication network 2, and M number of applied arithmetic operation devices 4 connected with the electric aggregation device 3 through an inter-device connection. Each power monitoring terminal 1 transmits electric quantity data to the electric quantity aggregation device 3 via the communication network 2.Type: ApplicationFiled: September 3, 2008Publication date: January 14, 2010Inventors: Katsuhiko Sekiguchi, Hideyuki Takani, Hideaki Sugiura
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Publication number: 20100007334Abstract: In a particular embodiment, a power sourcing equipment (PSE) device includes a plurality of network ports adapted to communicate data and to selectively provide power to one or more powered devices via a plurality of channels. The PSE device further includes a plurality of sense elements, where each sense element is coupled to a respective network port of the plurality of network ports. The PSE also includes a power sensing circuit having an analog-to-digital converter (ADC) adapted to be selectively coupled to a selected network port of the plurality of network ports. The power sensing circuit selectively measures at least one electrical parameter associated with the selected network port.Type: ApplicationFiled: July 8, 2008Publication date: January 14, 2010Applicant: Silicon Laboratories Inc.Inventor: Russell J. Apfel
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Publication number: 20100007335Abstract: A measuring apparatus, in particular for measuring current, is provided. In at least one embodiment, the measuring apparatus includes a sensor and an evaluation device which is coupled or can be coupled thereto, in which the coupling is effected contactlessly, in particular by way of a transponder interface. As such, on the one hand current can be measured in a reaction-free manner, wherein on the other hand the resulting measuring apparatus can be used in a particularly flexible and versatile manner on account of the maneuverability of the components with respect to one another and on account of the relatively large possible distance between the two parts of the transponder interface.Type: ApplicationFiled: July 26, 2006Publication date: January 14, 2010Inventors: Peter Kaluza, Richard Schmidt, Christian Widmann
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Publication number: 20100007336Abstract: There is disclosed a method of monitoring an electrical network of the type having a feeder line connected to a plurality of distribution transformers, each distribution transformer being in turn coupled to a load which may be provided with a customer meter. The method includes the steps of recording an accumulated in-phase current at each of the distribution transformers over a time period and recording for the same time period an accumulated in-phase current at the feeder line. The sum of the accumulated in-phase currents recorded at the distribution transformers are then compared to the accumulated in-phase current recorded at the feeder line. The method may also include the steps of recording accumulated in-phase currents at the customer meters and comparing their sum with the accumulated in-phase current measured at the distribution transformers coupled to the customer meters.Type: ApplicationFiled: January 12, 2009Publication date: January 14, 2010Inventor: Eric George de Buda
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Publication number: 20100007337Abstract: An arrangement for measuring process parameters within a processing chamber is provided. The arrangement includes a probe arrangement disposed in an opening of an upper electrode. Probe arrangement includes a probe head, which includes a head portion and a flange portion. The arrangement also includes an o-ring disposed between the upper electrode and the flange portion. The arrangement further includes a spacer made of an electrically insulative material positioned between the head portion and the opening of the upper electrode to prevent the probe arrangement from touching the upper electrode. The spacer includes a disk portion configured for supporting an underside of the flange portion. The spacer also includes a hollow cylindrical portion configured to encircle the head portion. The spacer forms a right-angled path between the o-ring and an opening to the processing chamber to prevent direct line-of-sight path between the o-ring and the opening to the processing chamber.Type: ApplicationFiled: July 7, 2009Publication date: January 14, 2010Inventors: Jean-Paul Booth, Douglas Keil
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Publication number: 20100007338Abstract: A magnetic field verifier apparatus includes a magnetic field detection element configured to produce a voltage signal in response to an applied magnetic field wherein the voltage signal corresponds to the strength of the applied magnetic field. A current source coupled to the magnetic field detection element provides a stimulating current for the magnetic field detection element that builds in a ramp-like progression. A microcontroller is in communication with the voltage signal wherein the microcontroller is configured to detect and control the ramping time of the magnetic field detection element and to sense after the ramping time the voltage signal from the magnetic field detection element. The magnetic field verifier apparatus is configurable to sense particular field strengths at various frequencies and store the readings to provide the user with a reliable verification that a particular magnetic field strength has been produced in a particular environment.Type: ApplicationFiled: July 11, 2008Publication date: January 14, 2010Applicant: Data Security, Inc.Inventor: Robert A. SCHULTZ
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Publication number: 20100007339Abstract: Embodiments of the invention are related to integrated sensor and magnetic concentrator devices and methods. In one embodiment, an integrated circuit comprises a sensor device and a magnetic field concentrator. The sensor device comprises a first sensor element, a second sensor element, and a third sensor element, the first sensor element spaced apart from the third sensor element by a first gap, and the second sensor element spaced apart from the third sensor element by a second gap. The magnetic field concentrator comprises a first magnetic element disposed in the first gap and a second magnetic element disposed in the second gap.Type: ApplicationFiled: July 9, 2008Publication date: January 14, 2010Applicant: INFINEON TECHNOLOGIES AGInventor: Udo AUSSERLECHNER
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Publication number: 20100007340Abstract: An angle detecting apparatus includes a rotor fixed to a rotating shaft, a pair of magnetic sensors arranged opposite each other so as to output a first detection signal and a second detection signal, respectively, each of which contains information on the angle of rotation of the rotor, a differential operational circuit performing differential operation on the first detection signal and the second detection signal, and an angle calculating circuit calculating the angle of rotation of the rotating shaft based on the result of the differential operation by the differential operational circuit. Here, the distance between two points where a straight line passing through the center of rotation of the rotor crosses the outer periphery of the rotor is constant.Type: ApplicationFiled: July 10, 2009Publication date: January 14, 2010Applicant: TDK CORPORATIONInventors: Yoshio Kaita, Hirokazu Miyamoto, Toshinao Kido
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Publication number: 20100007341Abstract: A rotation angle detection device for detecting rotation angle of a rotator to be measured includes magnetic detection elements which are fixed to the circumference of the rotating body to be measured and detect magnetic flux density of magnet which is rotated with said rotating body to be measured. The device can calculate rotation angle of the rotating body to be measured from outputs of the magnetic detection elements. The device also includes magnetic bodies having two edge portions in positions where the magnet is inserted and are arranged along an area where a magnetic line of force of the magnet is formed.Type: ApplicationFiled: December 14, 2007Publication date: January 14, 2010Applicant: THE FURUKAWA ELECTRIC CO., LTDInventors: Kengo Tanaka, Fumihiko Abe
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Publication number: 20100007342Abstract: Disclosed is a method and an NDT/NDI probe deploying a slit or a flexible joint of probe bending region, preferably between two rows of probe elements to allow free bending between rows of probe elements and along the direction of the rows of elements and to allow two adjacent rows of elements to bend individually along its own natural bending lines perpendicular to the direction of the rows of elements. Also disclosed is the use of protective flexible pads to cover the probe elements and other probe components.Type: ApplicationFiled: June 12, 2009Publication date: January 14, 2010Inventors: Benoit Lepage, Denis Faucher
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Publication number: 20100007343Abstract: A magnetic field effect sensor system having giant magneto-impedance elements. The elements may be elongated strips, and in proximity to and parallel with one another, and connected in series with connections or electrodes. The elements may have a regular shape without turns. They may have a single- or multi-layer structure. Some of the layers in the elements may contain a soft magnetic material, for instance, which form a closed loop for magnetic flux around a non-magnetic conductor.Type: ApplicationFiled: July 10, 2008Publication date: January 14, 2010Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Xinhui Mao, HuanBin Fang
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Publication number: 20100007344Abstract: Presented herein is a shunted MTJ sensor formed of a plurality of electrically connected MTJ cells for measuring magnetic fields and currents and its method of fabrication. To provide stable single domain magnetic moments of the MTJ cells and to ensure that the magnetic moments return to a fixed bias point in the absence of external magnetic fields, the cells are formed of sufficiently small size and with elliptical cross-section of aspect ratio greater than 1.2. To eliminate the possibility of ESD damage to the cells, they are protected by a parallel shunt, formed as a trace of sufficiently high resistance that directs accumulated charges harmlessly to ground while bypassing the cells.Type: ApplicationFiled: July 8, 2008Publication date: January 14, 2010Inventors: Yimin Guo, Grace Gorman
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Publication number: 20100007345Abstract: An apparatus in one example comprises a polarization filter and a polarization analyzer. The polarization filter comprises a first polarization axis. The polarization analyzer comprises a second polarization axis. The polarization filter is configured to polarize detection light for a nuclear magnetic resonance (NMR) cell along the first polarization axis. The polarization analyzer is configured to receive the detection light from the NMR cell and pass a portion of the detection light to a processor for determination of angular rate information. The portion of the detection light passed to the processor is based on an orientation of the second polarization axis relative to the first polarization axis. The orientation is selected to maximize a signal-to-noise ratio of the detection light.Type: ApplicationFiled: July 14, 2008Publication date: January 14, 2010Inventor: Edward Kanegsberg
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Publication number: 20100007346Abstract: A method for determining attenuation values of an object is disclosed. In at least one embodiment, the method includes stationary positioning of the object, irradiation of the object via a radiation source, measurement of the object's transmission data via a detection system, determination of at least one geometric property of the object on the basis of the transmission data, and assignment of attenuation values to the object on the basis of the geometric property.Type: ApplicationFiled: July 9, 2009Publication date: January 14, 2010Inventor: Ralf Ladebeck
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Publication number: 20100007347Abstract: An MR system comprising an improved gradient coil that does not compromise patient comfort is disclosed herein. The MR system is either a bore-type or a gap-type system and comprises a main magnet (102, 502) arranged to generate a main magnetic field; an examination region (118, 518) having a central axis (114)—in a bore-type system—or a central plane (514)—in a gap-type system—that is either parallel (for a bore-type MR system) or perpendicular (for a gap-type MR system) to the direction of the main magnetic field; and a gradient coil for generating a magnetic field gradient across the examination region, wherein the gradient coil comprises a first coil portion (108a, 508a) and a second coil portion (108b, 508b) located at different distances from the central axis (in a bore-type system) or from the central plane (in a gap-type system).Type: ApplicationFiled: November 2, 2007Publication date: January 14, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.Inventors: Cornelis Leonardus Gerardus Ham, Gerardus Nerius Peeren
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Publication number: 20100007348Abstract: A method for providing an image of a formation surrounding a wellbore, includes: obtaining an apparent conductivity curve from main components of resistivity measurements of the formation; performing fitting for cross-components of the resistivity measurements; calculating scaling factors from the cross-component data; scaling apparent conductivity data by the calculated scaling factors; and plotting the scaled conductivity data to provide the image of the anisotropic formation. A system and a computer program product are disclosed.Type: ApplicationFiled: July 13, 2009Publication date: January 14, 2010Applicant: BAKER HUGHES INCORPORATEDInventors: Sheng Fang, Andrew D. Kirkwood, Gulamabbas Merchant, Eric Hart, Tsili Wang
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Publication number: 20100007349Abstract: A system for measuring a resistivity parameter of an earth formation includes: at least one measurement electrode electrically connected to a first electrical source; at least one guard electrode; a shielding electrode interposed between the at least one guard electrode and the at least one measurement electrode, the shielding electrode being electrically connected to a second electrical source independent from the first electrical source, and the guard electrode being electrically connected to a third electrical source independent of the first and second electrical sources; at least one return electrode; insulators positioned between (i) the measurement electrode and the shielding electrode, (ii) the shielding electrode and the guard electrode and (iii) the measurement electrode, the guard electrode and the return electrode; and a processor configured to adjust at least one of the first electrical source and the second electrical source to minimize a current flow through the shielding electrode.Type: ApplicationFiled: July 11, 2008Publication date: January 14, 2010Applicant: BAKER HUGHES INCORPORATEDInventors: Matthias Gorek, Martin Folberth, Christian Fulda
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Publication number: 20100007350Abstract: An over voltage transient controller to protect a rechargeable battery from an over voltage transient condition. The over voltage transient controller may comprise a comparator to compare a first signal with a second signal representative of a reference voltage level and to provide an output signal representative of an over voltage transient condition to a switch if the first signal is greater than or equal to the second signal. The switch is responsive to the output signal to protect the rechargeable battery from the over voltage transient condition. The over voltage transient controller may further comprise a DAC, wherein the second signal is based, at least in part, on an output of the DAC. An apparatus comprising a charge switch and such an over voltage transient controller is also provided.Type: ApplicationFiled: September 15, 2009Publication date: January 14, 2010Applicant: O2MICRO INTERNATIONAL LIMITEDInventors: Bruce S. Denning, Guoxing Li, Liusheng Liu
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Publication number: 20100007351Abstract: A voltage measuring device includes a sample-and-hold circuit which alternates between (a) a sample mode in which a signal input from a cell to be measured is sampled so that a voltage across a first capacitor becomes equal to a voltage across the cell to be measured, and a voltage across a second capacitor having its one end connected to one end of the first capacitor becomes equal to zero volts and (b) a hold mode in which the connection between the first and second capacitors is opened, the first capacitor establishes a connection between an inverting input terminal and a non-inverting output terminal of an operational amplifier, and the second capacitor establishes a connection between a non-inverting input terminal and an inverting output terminal of the operational amplifier, and an analog-to-digital converter which converts a signal output from the operational amplifier into a digital signal.Type: ApplicationFiled: March 20, 2009Publication date: January 14, 2010Inventors: Daisuke Kurose, Tetsuro Itakura, Yoshinao Tatebayashi, Nobuo Shibuya
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Publication number: 20100007352Abstract: Embodiments of the present invention are directed to a method and fault detection system for detecting and identifying the location of faults in underground power lines that can effectively and quickly identify faults in underground power lines. Embodiments can provide a method and fault detection system that quickly identify faults in a power grid that result from open circuits or short circuits in underground conduits. A specific system for fault detection of power lines in a network having one or more substations and corresponding one or more manholes for access to underground lines, includes: a sensor device for each manhole, wherein the sensor device is capable of detecting a magnetic field generated by a power line and can send a signal through a fiber optic cable, the signal including a unique wavelength identifier; and a communication device for each substation for transmitting the signal from the sensor device to an operator.Type: ApplicationFiled: December 6, 2007Publication date: January 14, 2010Applicant: University of Florida Research Foundation , Inc.Inventors: Huikai Xie, David Clark Gibson, Darko Kovac
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Publication number: 20100007353Abstract: A Group of circuits and a testing method thereof and a testing machine thereof are provided. In the testing method, a first voltage of a first circuit is adjusted to be a second voltage according to a first adjusting signal, wherein the second voltage is closer to a standard voltage compared to the first voltage. Further, a third voltage of a second circuit is adjusted to be a forth voltage according to a second adjusting signal, and the forth voltage is closer to the standard voltage compared to the third voltage. In addition, a margin range of the second voltage and a margin range of the forth voltage are adjusted together according to a margin adjusting signal. Thereby, time required for testing the first circuit and the second circuit can be decreased, so as to lower the cost.Type: ApplicationFiled: July 9, 2008Publication date: January 14, 2010Applicant: WINBOND ELECTRONICS CORP.Inventor: Cheng-Kuang Yang
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Publication number: 20100007354Abstract: A system and method for detecting an arc of a medium voltage power line, such as an underground power line cable, is provided. In one embodiment the method comprises receiving voltage measurement data of the alternating voltage of the medium voltage power line, receiving current measurement data of the current of the medium voltage power line, detecting a current surge based on received current measurement data and upon detecting the current surge, processing the received voltage measurement data to determine whether the current surge initiated during a peak of the alternating voltage. In addition, the method may comprise transmitting a notification of the concurrent current surge. The transmission may be over the medium voltage power line, wirelessly, via fiber, via coaxial cable, or other suitable method. The current surge detection process may also comprise determining that the current surge lasts for less than a predetermined duration.Type: ApplicationFiled: July 8, 2008Publication date: January 14, 2010Inventors: Brian J. Deaver, SR., David G. Kreiss