20th week of 2013 patent applcation highlights part 21 |
Patent application number | Title | Published |
20130119900 | MOTOR TORQUE RIPPLE COMPENSATION - A system for controlling a vehicle, the vehicle including an electric machine, includes a controller. The controller is configured to control the electric machine with an electric machine current including a plurality of current harmonic components. At least two of the current harmonic components have different magnitudes. When a torque ripple of the electric machine is an electrical k-th order harmonic, the plurality of current harmonic components may include an electrical k-1 order harmonic component having a first magnitude and an electrical k+1 order harmonic component having a second magnitude different than the first magnitude. | 2013-05-16 |
20130119901 | System for Managing DC Link Switching Harmonics - A distributed motor drive system includes a power management module and multiple inverter modules integrated with the motors and located on a machine or process remote from the power management module. The power management module distributes DC voltage and command signals to each of the inverters. The DC voltage is distributed between modules via a DC link cable. The integrated inverters execute switching routines to convert the DC voltage to an AC voltage suitable for controlling the motor. Each of the power management module and the inverters includes a portion of the DC bus capacitance. The distributed motor drive system also includes a link inductance between the power management module and the inverters to limit the amount of reactive current generated by the inverters. | 2013-05-16 |
20130119902 | System and Method for Managing DC Link Switching Harmonics - A distributed motor drive system includes a power management module and multiple inverter modules integrated with the motors and located on a machine or process remote from the power management module. The power management module distributes DC voltage and command signals to each of the inverters, where the DC voltage is distributed between modules via a DC link cable. The integrated inverters execute switching routines to convert the DC voltage to an AC voltage suitable for controlling the motor. Each of the power management module and the inverters includes a portion of the DC bus. The current on the DC link cable is monitored and general bus utilization as well as overload conditions are reported. | 2013-05-16 |
20130119903 | AC PRE-CHARGE CIRCUIT - AC pre-charging techniques are provided for pre-charging the DC bus on a motor drive. AC pre-charging techniques involve pre-charge circuitry including a manual switch, an automatic switch, and pre-charge control circuitry to switch the automatic switch between pre-charge and pre-charge bypass modes in response to an initialized pre-charge operation, input voltage sags, etc. In some embodiments, the pre-charge operation may be initialized by switching the manual switch closed. In some embodiments, the pre-charge operation may also be initialized by a detected voltage sag on the DC bus. The pre-charge circuitry may also be configured to disconnect a motor drive from the AC power supply under certain fault conditions. | 2013-05-16 |
20130119904 | METHOD AND SYSTEM FOR CONTROLLING MOTOR - A method for controlling a motor is provided. The method comprises obtaining electrical signals of the motor with a signal unit, the electrical signals comprising a motor torque and an angular velocity, calculating a voltage phase angle of a voltage vector with a calculating component, wherein a command torque, the motor torque, the angular velocity and a voltage amplitude of the voltage vector are inputs of the calculating component, and wherein the voltage phase angle is a variable and the voltage amplitude is a constant. The method further comprises modulating the voltage phase angle and the voltage amplitude to a switching signal for controlling an inverter; converting a direct current voltage to the voltage vector according to the switching signal, and applying the voltage vector to the motor. | 2013-05-16 |
20130119905 | DETERMINATION OF MAGNETIC FLUX AND TEMPERATURE OF PERMANENT MAGNETS IN WASHING MACHINE MOTOR - According to one illustrative embodiment, a washing machine comprises a motor including a plurality of coils and one or more permanent magnets, an inverter configured to supply current to the plurality of coils and to measure a back electromotive force (BEMF) waveform from the plurality of coils, and an electronic control unit (ECU) configured to (i) integrate the BEMF waveform to generate an integrated BEMF waveform, (ii) determine a magnetic flux of the one or more permanent magnets using an amplitude of the integrated BEMF waveform, and (iii) control the current supplied by the inverter based at least in part upon the determined magnetic flux. | 2013-05-16 |
20130119906 | METHODS AND APPARATUS FOR ELECTRIC MOTOR CONTROLLER PROTECTION - A method for monitoring input power to an electronically commutated motor (ECM) is described. The method includes determining, with a processing device, an average input current to the motor, the average input current based on a voltage drop across a shunt resistor in series with the motor, measuring an average input voltage applied to the motor utilizing the processing device, multiplying the average input current by the average voltage to determine an approximate input power, and communicating the average input power to an external interface. | 2013-05-16 |
20130119907 | Power Module with Current Routing - According to an exemplary embodiment, a bondwireless power module includes a common output pad coupling an emitter/anode node of a high side device to a collector/cathode node of a low side device. The bondwireless power module also includes a high side conductive clip connecting a collector of the high side device to a cathode of the high side device, and causing current to traverse through the high side conductive clip to another high side conductive clip in another power module. The bondwireless power module further includes a low side conductive clip connecting an emitter of the low side device to an anode of the low side device, and causing current to traverse through the low side conductive clip to another low side conductive clip in the another power module. The bondwireless power module can be a motor drive inverter module. | 2013-05-16 |
20130119908 | ELECTRONIC CONTROL UNIT FOR ELECTRIC POWER STEERING - One embodiment of the present invention provides an electronic control unit for electric power steering, including: a first board which is mounted with first surface-mount components; and only one second board which is mounted with second surface-mount components having larger allowable current capacities than the first surface-mount components, which have approximately the same components mounting area as the first board, and which is layered with the first board. | 2013-05-16 |
20130119909 | METHOD OF DETECTING AN OFF-BALANCE CONDITION OF A CLOTHES LOAD IN A WASHING MACHINE - An off-balance detection method comprises a plurality of off-balance detection schemes that utilize wash basket speed to detect an off-balance load condition at speed ranges that span the entire spin cycle and include speeds corresponding to natural frequencies of a mass comprising a wash tub and a wash basket. The schemes can be used alone or in combination with one or more of the other schemes. The off-balance detection method can further comprise a power limiting method to prevent motor overload when an off-balance condition is present. | 2013-05-16 |
20130119910 | ELEVATOR MOTOR POWER SUPPLY CONTROL - An exemplary power supply assembly includes a drive device having a bus capacitor. A switch associated with an input side of the drive device selectively connects the drive device to a power supply. An inductor has an impedance that limits an amount of current supplied to the bus capacitor during an initial charging of the bus capacitor when the switch connects the input side of the drive device to the power supply. A restrictive circuit portion dampens a resonance effect of the inductor. The restrictive circuit portion has a resistance that allows the bus capacitor to charge quickly. The impedance of the inductor has a more significant effect on how quickly the bus capacitor charges than an effect of the resistance. A dampening factor of the restrictive circuit controls a voltage of the bus capacitor during the charging of the bus capacitor. | 2013-05-16 |
20130119911 | WIPER CONTROL - The invention relates to a method for controlling the movement of a wiper blade over a wiping surface, including the steps of moving the wiper blade up and down over the wiping surface between a lower turning position and an upper turning position, detecting a requirement to stop the wiper blade, moving the wiper blade downward into a lower end position and from there upward into a first parking position in the event that a reversing signal is present, and stopping the wiper blade. To this end, the wiper blade is moved into the lower end position only if previously thereto low mechanical resistance against the movement of the wiper blade over the wiping surface was determined. | 2013-05-16 |
20130119912 | Power Conversion Device and Temperature Rise Calculation Method Thereof - A temperature rise of a semiconductor switching element, which is part of a power conversion device such as an inverter, is estimated by an extremely simple method to assess the degradation and remaining lifetime of the semiconductor switching element. | 2013-05-16 |
20130119913 | INTEGRATED DRIVE MOTOR POWER INTERFACE - An integrated drive motor (IDM) power distribution architecture utilizes an IDM power interface module (IPIM) to create a control voltage that is distributed to all the IDMs in a network. This power distribution may be accomplished along a hybrid cable, for example, that includes both signal conductors and power conductors. The IPIM is capable of detecting short circuits and/or overload conditions and disabling the power supply to the IDMs. Additionally, a second power supply may be utilized in the IPIM such that when the power supply to the IDMs is deactivated, the IPIM may remain functional, for example, to report one or more fault conditions to the user. Additionally, this reporting of fault status may be accomplished via a user display integrated with or coupled to the IPIM. | 2013-05-16 |
20130119914 | METHOD AND CIRCUIT ASSEMBLY FOR CURRENT CONTROL IN 3-PHASE MOTORS - A method and circuit assembly are provided for controlling the motor current in an electric 3-phase motor, in particular in a 3-phase stepper motor, by a chopper process. For at least two of the three motor connections a respective chopper phase is cyclically activated, while a target motor current supplied for the motor connection in question is injected into the motor connection by a chopper process, while the two other motor connections are connected to each other. | 2013-05-16 |
20130119915 | VARIABLE SPEED TRIGGER MECHANISM - A variable speed trigger mechanism that allows a user to reverse a direction of a motor and supply variable amounts of power to the motor using a single trigger mechanism. In a first motion, the user can actuate the reversing module to change the direction of the motor coupled to the trigger mechanism. In a second motion, the user can actuate the same trigger and apply variable amounts of power to the motor. | 2013-05-16 |
20130119916 | Energy Efficient Motion Control System - A control signal for controlling an operation of a motion control system suitable for positioning a load is generated using determining a cost function based on a model of energy consumption of the system and a function of a tracking time; and minimizing the cost function subject to constraints to determine a trajectory of the control signal. The control signal is generated based on the trajectory and a current state of the system, wherein the steps of the method are performed by a processor. | 2013-05-16 |
20130119917 | APPARATUS AND METHOD FOR CONTROLLING STEPPING MOTOR - An apparatus and method is provided for controlling a stepping motor in a digital photographing apparatus, the apparatus including: a temperature measuring unit for measuring a temperature; and a digital signal processor (DSP) for determining a measured temperature driving value of the stepping motor in correspondence with the measured temperature, changing the determined driving value based on a target position to which the stepping motor is supposed to move, and outputting the changed driving value to the stepping motor. Accordingly, power consumption of image capturing apparatuses may be eventually reduced by reducing power consumption of a stepping motor by driving the stepping motor with different driving values depending on temperatures and positions thereof. | 2013-05-16 |
20130119918 | PORTABLE STACKABLE SOLAR BATTERIES - Portable stackable solar batteries are disclosed, in which the solar batteries can be connected in a planar arrangement for solar recharging and connected in a vertically stacked arrangement for powering an electrically powered device and/or for charging another rechargeable battery. | 2013-05-16 |
20130119919 | Method of Improving Energy Consumption Efficiency and Mobile Terminal Thereof, and Use of Thermo-Electric Conversion Module - The present disclosure provides a method of improving the energy consumption efficiency and a mobile terminal thereof, and a use of a thermo-electric conversion module. The method comprises the following steps: A. a power amplifier module electrically connected to a circuit board of the mobile terminal amplifies a communication signal of the mobile terminal to generate heat energy; B. a thermo-electric conversion module, of which an output terminal is electrically connected to the circuit board, absorbs the heat energy generated by the power amplifier module during operation; and C. the thermo-electric conversion module converts the heat energy absorbed into electric power and output the electric power to the circuit board. | 2013-05-16 |
20130119920 | ELECTRIC VEHICLE CHARGING SYSTEM AND CHARGING MANAGEMENT METHOD THEREOF - An exemplary embodiment provides a charging system including a management device and a plurality of charging devices. The management device includes a scheduling control module and a charging host. The scheduling control module executes dynamic scheduling according to a residence time and a charging time, and re-executes the dynamic scheduling according to a queue-jumping request. The charging host calculates the charging time according to battery information, and charges a plurality of electric vehicles according to the dynamic scheduling. The charging devices are coupled to the management device and connected to the electric vehicles, wherein each of the charging devices includes an input interface and a charging plug. The input interface receives the residence time and a power demand. The charging plug is connected to one of the electric vehicles to receive the battery information, and charges the connected electric vehicle. | 2013-05-16 |
20130119921 | RAPID BATTERY CHARGING METHOD AND SYSTEM - A method of rapidly charging a battery includes: (a) applying a charge to the battery using a charging profile; (b) monitoring a terminal voltage of the battery; (c) using a mathematical model to estimate a desired temporal state of charge of the battery and to estimate a predicted terminal voltage; (d) using the monitored terminal voltage of the battery and the predicted terminal voltage to determine an error; (e) applying the error to calculate a calculated state of charge of the battery; and (f) controlling the charge applied by the charging profile to urge the calculated state of charge of the battery toward the desired temporal state of charge of the battery. For use with lithium ion batteries, such feedback is used to limit ion concentration levels. Preferably, a Reduced Order Model is used to minimize computational requirements and facilitate real-time calculations. | 2013-05-16 |
20130119922 | METHOD AND APPARATUS FOR PERFORMING CHARGING PORT DETECTION CONTROL - A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, and a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device. The method may include the steps of: detecting whether an output voltage level of a battery of the electronic device reaches a predetermined threshold value; and control operation(s) according to whether the output voltage level reaches the predetermined threshold value. For example, the method may include: when it is detected that the output voltage level is less than the predetermined threshold value, pre-charging the battery with a predetermined pre-charging current level to make the output voltage level reach the predetermined threshold value, and then controlling a detection path switching unit to electrically connect data terminal(s) of the communication port to a charging port detection circuit. | 2013-05-16 |
20130119923 | SYSTEM AND METHODS FOR MANAGING A DEGRADED STATE OF A CAPACITOR SYSTEM - This disclosure provides systems, methods and apparatus for managing a capacitor system. In one aspect, an energy storage system includes a capacitor system, a charging circuit, and a controller. The capacitor system includes one or more capacitors. The charging circuit is configured to charge the capacitor system to a first target voltage. The controller is configured to detect a first condition and is programmed, in response to the first condition, to instruct the charging circuit to charge the capacitor system to a second target voltage that is less than the first target voltage. The controller is programmed to provide a notification that the capacitor system is operating in a degraded state. | 2013-05-16 |
20130119924 | MULTI-BAND TRANSMIT ANTENNA - This disclosure provides systems, methods and apparatus for tuning a transmit antenna for operation in a plurality of frequency bands. In one aspect, a transmitting antenna system is provided. The transmitting antenna system includes an active transmit antenna and a tunable passive antenna. The active antenna is configured to transmit a field over a plurality of operating frequencies. The passive antenna is configured to transmit a field over at least two frequencies of the plurality of operating frequencies. In one aspect, the tunable passive antenna includes a network of a plurality of reactive elements. In another aspect, the plurality of operating frequencies is selected from a set including a charging frequency, an NFC frequency, and a communication frequency. | 2013-05-16 |
20130119925 | NON-CONTACT CHARGING SYSTEM - A non-contact charging system includes: a power transmission device that includes a primary coil supplying electric power through electromagnetic induction; a power reception device that includes a secondary coil receiving electric power by being electromagnetically coupled with the power transmission device; and a control device that determines charging efficiency from the primary coil to the secondary coil and changes the current supplied to the primary coil in accordance with the charging efficiency. | 2013-05-16 |
20130119926 | WIRELESS CHARGING SYSTEM AND METHOD - The present invention provides a wireless charger including a sensing device, a charging coil array and a processor. The sensing device determines the shape of the recharging area of an electronic device placed on the wireless charger. The charging coil array includes a plurality of dynamic charging coils and selectively turns on a part of the dynamic charging coils. The processor drives the part of the dynamic charging coils to charge the electronic device by wireless charging, wherein the part of the dynamic charging coils of the charging coil array is corresponding to the shape of the recharging area. | 2013-05-16 |
20130119927 | METHODS FOR IMPROVED TRANSFER EFFICIENCY IN A MULTI-DIMENSIONAL INDUCTIVE CHARGER - A system and method for improved transfer efficiency in a multi-dimensional inductive charger. In accordance with an embodiment, the system comprises a base unit having one or more transmitter coils; one or more receiver coils or receivers associated with one or more mobile device; one or more components including a ferromagnetic, ferrite, or other magnetic material or layer, that modify the magnitude and/or phase of an electromagnetic field in one or multiple dimensions; and one or more components within the base unit and/or the mobile device, for improving transfer efficiency. In accordance with various embodiments, the system can include a ferromagnetic, ferrite, or other magnetic material or layer that acts as a switching layer. | 2013-05-16 |
20130119928 | INTELLIGENT CHARGING OF MULTIPLE ELECTRIC OR ELECTRONIC DEVICES WITH A MULTI-DIMENSIONAL INDUCTIVE CHARGER - A system and method for intelligent charging of multiple electric or electronic devices with a multi-dimensional inductive charger. In accordance with an embodiment, the system comprises a base unit having one or more transmitter coils; one or more receiver coils or receivers associated with one or more mobile device; one or more components including a ferromagnetic, ferrite, or other magnetic material or layer, that modify the magnitude and/or phase of an electromagnetic field in one or multiple dimensions; and one or more components within the base unit and/or the mobile device, for intelligent charging of multiple mobile devices. In accordance with various embodiments, the base unit can determine the presence of a mobile device in proximity to the base unit, and wherein a receiver coil or receiver thereby activated performs an initiation process whereby its ID, presence, power, voltage or other requirements are communicated to the base unit. | 2013-05-16 |
20130119929 | MULTI-DIMENSIONAL INDUCTIVE CHARGER AND APPLICATIONS THEREOF - A system and method for providing a multi-dimensional inductive charger. In accordance with an embodiment, the system comprises a base unit having one or more transmitter coils; and one or more components including a ferromagnetic, ferrite, or other magnetic material or layer, that modify the magnitude and/or phase of an electromagnetic field in one or multiple dimensions. When a mobile device, such as a phone, computing device, camera, kitchen appliance, automobile, or other electrical or electronic device having one or more receiver coils or receivers associated therewith, is placed in proximity to the base unit, the transmitter coil is used to inductively generate a current in the receiver coil or receiver associated with the mobile device, to charge or power the mobile device. In accordance with various embodiments, the base unit is provided within an automobile, for use in charging or powering one or more mobile devices within the automobile. | 2013-05-16 |
20130119930 | RESONANCE TYPE NON-CONTACT POWER SUPPLY SYSTEM - A resonance type non-contact power supply system that supplies power through a primary resonance coil and a secondary resonance coil. The resonance type non-contact power supply system includes power supplying equipment and movable body equipment. The power supplying equipment includes a primary coil unit, which is provided with the primary resonance coil, and a distance detector, which detects the distance between the primary and secondary resonance coils. The movable body equipment includes a switch and a terminal resistor. When the distance detector detects the distance, the switch connects the terminal resistor to the secondary coil unit and disconnects a rectifier and power storage device from a secondary coil unit. When the movable body equipment receives power, the switch connects the rectifier and the power storage device to the secondary coil unit and disconnects the terminal resistor from the secondary coil unit. | 2013-05-16 |
20130119931 | CONTROL PILOT DETECTION CIRCUIT - A control pilot detection circuit operable with a control pilot signal provided from an electric vehicle supply equipment (EVSE) system to facilitate output of a control pilot wake-up signal. The control pilot wake-up signal may be operable with a controller to facilitate controlling operations of a vehicle charging system, such as to facilitate charging a high voltage battery included within a vehicle. | 2013-05-16 |
20130119932 | BATTERY CHARGING APPARATUS - A battery charging apparatus includes an input power processing unit configured to receive an AC power and convert the received AC power into an output voltage for power conversion; a hybrid power converting unit configured to use a common transformer to separately convert the output voltage of the input power processing unit into a first voltage and a second voltage for charging a high voltage battery and an auxiliary battery; a high voltage charging unit configured to drop the first voltage output from the hybrid power converting unit and charge the high voltage battery with the dropped first voltage; and an auxiliary voltage charging unit configured to generate an auxiliary voltage by dropping the second voltage output from the hybrid power converting unit or a voltage of the high voltage battery, and charge the auxiliary battery with the auxiliary voltage. | 2013-05-16 |
20130119933 | GROUND FAULT INTERRUPT CIRCUIT FOR ELECTRIC VEHICLE - In one implementation, a ground fault interrupt circuit is provided for a utility power connection to an electric vehicle charging unit. The ground fault interrupt circuit may include a gain amplifier having an input connected to be capable of receiving a differential current from a current sensing transformer and a comparator having an input connect to a reference voltage. It includes a rectifier circuit connected between the gain amplifier and the comparator with a charge accumulator circuit coupled between the rectifier and the comparator. | 2013-05-16 |
20130119934 | SECONDARY BATTERY PACK CONNECTION CONTROL METHOD, POWER STORAGE SYSTEM, AND SECONDARY BATTERY PACK - A power storage system has a plurality of secondary battery packs and a host device. The secondary battery packs each have: secondary batteries; a charge switch means that turns a charging path to the secondary batteries ON and OFF; a discharge switch means that turns a discharging path from the secondary battery ON and OFF; and a current-limiting means that causes the secondary battery to discharge while limiting the current to, or below, a fixed value. When switching from the secondary battery pack connected to the input/output terminals of the system to a first secondary battery pack in which voltage is higher than in the second secondary battery pack, the host device causes the charge switch means of the second secondary battery pack to turn OFF the charging path while in a state in which the current limiting means of the first secondary battery pack will cause a discharge operation to begin while limiting the flow of current. | 2013-05-16 |
20130119935 | MULTIPLEXER AND SWITCH-BASED ELECTROCHEMICAL CELL MONITOR AND MANAGEMENT SYSTEM AND METHOD - A system for monitoring a plurality of battery cells using the switch and multiplexing circuits with the plurality of monitored signal indicating the battery voltage levels for each cell by switching the measured voltage of each cell and using switching of the monitored cell voltage to selectively measure each selected signal ( | 2013-05-16 |
20130119936 | MULTI-SERIES BATTERY CONTROL SYSTEM - A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation. | 2013-05-16 |
20130119937 | SYSTEM AND METHOD FOR COOLING AND CYCLING A BATTERY PACK - A system and a method for cooling and cycling a battery pack is provided. The system includes an air supplying device that outputs pressurized air. The system further includes a vortex tube that receives the pressurized air and outputs cooled air at a first temperature level utilizing the pressurized air. The system further includes at least one heat exchanger disposed in the battery pack that receives the cooled air from the vortex tube and cools the battery pack. The system further includes a battery cycling device configured to charge and discharge the battery pack when the battery pack is being cooled. | 2013-05-16 |
20130119938 | CIRCUIT AND SYSTEM AND METHOD FOR CONTROLLING BATTERY - A battery control circuit for balancing a battery includes a voltage detector, a controller, a balancing device, and a switch. The voltage detector is configured to detect a voltage difference of the battery so as to generate a detecting signal. The controller is configured to generate a control signal according to the detecting signal. The switch is coupled between the battery and the balancing device, and is opened or closed according to the control signal, wherein if the voltage difference is greater than a threshold value, the switch is closed and the balancing device draws a load current from the battery, and if the voltage difference is smaller than or equal to the threshold value, the switch is opened and the balancing device is not capable of drawing any current. | 2013-05-16 |
20130119939 | CHARGE/DISCHARGE SCHEDULING SYSTEM AND CHARGE/DISCHARGE SCHEDULING METHOD - There is provided a charge/discharge scheduling system in which a measurer measures temperature of a battery unit, a current/voltage measurer measures a voltage and a current at the battery unit, an estimating unit estimates an internal resistance of the battery unit, a scheduler creates, based on a charge/discharge instruction specifying charge amount or discharge amount, a charging schedule or a discharging schedule for the battery unit, a temperature estimating unit estimates time-transition of temperature of the battery unit, based on the internal resistance of the battery unit, the load estimator estimates a load amount applied to the battery unit based on the temperature time-transition of the battery unit provided that the charging schedule or the discharging schedule is carried out, the charge/discharge scheduler creates the charge schedule or the discharge schedule so that the load amount applied to the battery unit is a minimum or smaller than a threshold value. | 2013-05-16 |
20130119940 | LITHIUM SECONDARY BATTERY AND CONTROL SYSTEM THEREFOR, AND METHOD FOR DETECTING STATE OF LITHIUM SECONDARY BATTERY - There is provided a control system for a lithium secondary battery that can quantitatively sense a deterioration state inherent in a lithium secondary battery using silicon oxide as a negative electrode active material, that is, the nonuniform reaction state of a negative electrode. A control system for a lithium secondary battery including a positive electrode, a negative electrode using silicon oxide as a negative electrode active material, and a lithium reference electrode having a reference potential with respect to the negative electrode includes measurement means for measuring a voltage V of the negative electrode with respect to the lithium reference electrode and a discharge capacity Q of the lithium secondary battery during discharge of the lithium secondary battery; generation means for generating a V-dQ/dV curve representing a relationship between dQ/dV, which is a proportion of an amount of change dQ in the discharge capacity Q to an amount of change dV in the voltage V, and the voltage V; calculation means for calculating an intensity ratio of two peaks appearing on the V-dQ/dV curve for two voltage values in the voltage V; and sensing means for sensing a state of the negative electrode utilizing the intensity ratio. | 2013-05-16 |
20130119941 | System and Method for Assessing ADC Operation and Voltage of a Battery Pack - Systems and methods for assessing operation of ADCs of a battery pack supplying power to a vehicle are disclosed. One example system comprises, a first ADC for determining the voltage of at least one battery cell; a second ADC for determining the voltage of a plurality of battery cells; and a controller performing an action in response to comparing an output of said first ADC to an output of said second ADC. | 2013-05-16 |
20130119942 | METHOD AND SYSTEM FOR DETERMINING A CHARGE RATE FOR A RECHARGEABLE BATTERY - A system and method for determining a charge rate for a battery and a method for charging the battery. The system having a memory component for storing user attributes relating to use patterns based on time of day; and a processor for determining the charge rate in accordance with the user attributes. The method for determining the charge rate consist of receiving indication that the battery is to be charged; and determining the charge rate based on user attributes relating to use patterns based on time of day. The method for charging the battery further includes charging the charge rate to the battery. | 2013-05-16 |
20130119943 | ENERGY DISTRIBUTION DEVICE FOR DISTRIBUTING AN ENERGY SIGNAL WITHIN A ROOM OR APARTMENT - A master beam apartment module U-form energy distributor can wirelessly recharge all electronic devices within a given range. The energy distributor can include a hollow center with a single U-form Wi-Fi/energy distributor and a disc base. The device can include a company logo, if desire, on the base and a power level indicator. The device can have a port for a power cord and a telephone, CAT-5 or USB type jack, for example, for Wi-Fi/energy input. The master beam apartment module U-form energy distributor can generate a sufficient amount of energy for apartments, rooms and smaller homes. To achieve this energy transmission, there can be about ten power output transmitters per side of the U-form energy distributor. | 2013-05-16 |
20130119944 | TRANSMISSION OF DATA RELATING TO THE OPERATION OF A BATTERY POWERING A DRIVING MOTOR OF A MOTOR VEHICLE - A method for managing a battery used to drive a motor vehicle. The method includes: storing data relating to the battery, as a function of time, during certain use phases of the motor vehicle; and transmitting battery-related data stored in a memory unit of a central server during a charging phase of the battery in a battery management station. | 2013-05-16 |
20130119945 | RECHARGING ENERGY STORAGE CELLS USING CAPACITIVE STORAGE DEVICE - A handheld device includes a capacitive storage device and energy storage cells. The capacitive storage device can be rapidly charged. The energy from the capacitive storage device is used to recharge the energy storage cells over a longer period of time. | 2013-05-16 |
20130119946 | BATTERY CHARGER AND BATTERY CHARGING METHOD - A rectification processor includes rectifier elements that control charge to batteries independently for each of the batteries. A charge-state detector detects charge states of the batteries from their voltages, and determines whether to select the batteries for charging in a half-cycle determined beforehand in accordance with the detected result. A synchronous signal detector detects a signal synchronized with the phase of the 3-phase alternate current (AC) generator from the 3-phase AC generator, and outputs a synchronous signal. A charge controller controls the charge in the rectification processor in synchronization with the 3-phase AC generator according to the synchronous signal from the synchronous signal detector, and, in accordance with the charge states of the batteries output from the charge-state detector, controls charge amounts to the battery/batteries that was determined for selection. | 2013-05-16 |
20130119947 | STORAGE BATTERY CONTROL DEVICE, CHARGING STATION, AND STORAGE BATTERY CONTROL METHOD - The battery charging of electric vehicles, etc. is controlled so that the impact on the electric power system is lightened even when a lot of electric vehicles, etc. start the charging all at once. A device for controlling an electricity storage device installed in an electric vehicle or the like calculates a voltage drop by applying a load current at the time of performing the charging of the electricity storage device, and limits the charging quantity of the storage battery (installed in the electric vehicle or the like) based on the calculated voltage drop so that the voltage drop of the electric power system remains less than a prescribed level. Consequently, it becomes possible to reduce the voltage fluctuation around each of the electric vehicles, etc. that is about to execute the charging in cases where a lot of electric vehicles, etc. start the charging all at once. | 2013-05-16 |
20130119948 | SELF-ENERGIZING VOLTAGE REGULATOR WITH IMPROVED TRANSIENT RECOVERY - A vehicle electrical system comprises a generator, voltage regulator, switch module, and control device. The generator includes a field coil and one or more stator windings coupled together via the switch module. The generator provides electrical current to one or more electrical loads. The voltage regulator maintains the generator output voltage at a constant voltage by varying the field current. The switch module may include low-power transistors. The control device monitors the field current, output voltage and stator current and applies control signals to the switch module to improve transient recovery due to sudden variations in the electrical load and increase system efficiency during normal operation. | 2013-05-16 |
20130119949 | Power Conditioning and Saving Device - Systems and methods are disclosed herein to a power factor adjustor comprising: a power factor measurement unit configured to measure the power factor on an input line to a load and generate a power factor correction signal based on the measured power factor; and a power factor adjustment unit connected to the power factor measurement unit comprising: a fixed capacitor connected in series to a first switching device; and an adjustable element having a variable capacitance connected in parallel to the fixed capacitor and in series to a second switching device, wherein the overall capacitance of the power factor adjustment unit is adjusted by adjusting the capacitance of the adjustable element or by toggling the first and second switching devices in response to the power factor correction signal. | 2013-05-16 |
20130119950 | POWER LINE AUTOTRANSFORMER SERIES COMPENSATOR - An apparatus for compensating a power system transmission line ( | 2013-05-16 |
20130119951 | POWER SUPPLY CIRCUITRY AND ADAPTIVE TRANSIENT CONTROL - A power supply system includes a PID control circuit, a signal shaping circuit, and a PWM control circuit. The PID control circuit generates a signal based on an error voltage of the power supply system. The signal shaping circuit receives and converts the signal outputted from the PID control circuit into a linear control signal. To reduce cost, the shaping circuit can include a piecewise linear implementation. During non-transient load conditions, the PWM control circuit utilizes the linear control signal outputted from the signal shaping circuit to adjust a switching period of a power supply control signal. The switching period of the power supply control signal is maintained within a desired range. During transients, settings of the PID control circuit are modified to provide a faster response. The switching period of the power supply control signal may be adjusted outside of the desired frequency range. | 2013-05-16 |
20130119952 | Methods and Apparatus For Regulating Output Voltage of a Power Supply System - A power supply system includes a first connector, a second connector, a first circuit for detecting a magnitude of a current drawn from an energy source by the power supply system and providing a related output related, and a second circuit for adjusting an output voltage supplied to the second connector based on output of the first circuit. The output voltage supplied to the second connector is at a first value when the output of the first circuit is below a first threshold. Further, the output voltage supplied to the second connector is at a second value, greater than said first value, when the output of the first circuit is above a second threshold. The output voltage supplied to the second connector is at a third value, between said first and second values, when the output of the first circuit is between the first and second thresholds. | 2013-05-16 |
20130119953 | DC-DC CONVERTER - A DC-DC converter operates as a step-down chopper using a main switch element, a sub switch element, an inductor and a capacitor. A sub switch control signal generating circuit discharges a capacitor with a voltage that is proportional to a difference between a voltage of a power supply input unit and a voltage of a power supply output unit when a PGATE signal is at an “L” level, and charges the capacitor with a voltage that is proportional to the voltage of the power supply output unit when an NGATE signal is at an “H” level. The sub switch element is forcibly turned off and reverse flow of an inductor current is prevented even at the time of a light load as a result of the voltage of the capacitor being generated as an NCTL signal. Thus, reverse flow of an inductor current is prevented and a high-efficiency DC-DC converter is provided without the use of a high-speed comparator or any other kind of comparator. | 2013-05-16 |
20130119954 | ADAPTIVE TRANSIENT LOAD SWITCHING FOR A LOW-DROPOUT REGULATOR - A low-dropout (LDO) voltage regulator includes a switch to generate an output current, and a first sensing module that increases the speed at which the switch is turned off and the output current is decreased in response to detecting a decreasing load current. The LDO regulator further includes a second sensing module that increases the speed at which the switch is turned on and the output current is increased in response to detecting an increasing load current. | 2013-05-16 |
20130119955 | High Voltage SEPIC Converter - A SEPIC converter with over-voltage protection includes a high-side inductor that connects a node V | 2013-05-16 |
20130119956 | CONTROL IC HAVING AUTO RECOVERY CIRCUIT, AUTO RECOVERY CIRCUIT OF CONTROL IC, POWER CONVERTER SYSTEM AND METHOD FOR AUTO RECOVERING CONTROL IC - The present invention relates to a control IC, an auto recovery circuit, a power converter system and a method for an auto recovering. In one embodiment, there is proposed to a control IC including: an abnormal state detection unit; a protection unit changing into a protection mode in an abnormal state and changing the protection mode into an operation mode by receiving an auto recovery signal; an IC power unit receiving the power from an input power when an IC power drops until a preset low voltage under the protection mode, blocking a power supply from the input power when the IC power reaches a preset high voltage and repeating a power supplying and blocking; and an auto restart unit counting clocks alternatively repeating a power supply signal and a supply block signal and supplying the auto recovery signal when the number of counts reaches a preset value. | 2013-05-16 |
20130119957 | Bi-directional Switching Regulator and Control Circuit Thereof - The present invention discloses a bi-directional switching regulator and its control circuit, wherein the bi-directional switching regulator converts an input voltage to an output voltage in a power supply mode, and it includes: a power stage including an upper gate switch, a lower gate switch and an inductor coupled to a common switching node, wherein the inductor is coupled to the input voltage; a load switch coupled between the output voltage and the upper gate switch; and a driver circuit controlling the load switch to adjust an output current flowing through the load switch according to current information at an input terminal of the input voltage. | 2013-05-16 |
20130119958 | Wide Input Voltage Range Power Supply Circuit - A wide input voltage power supply circuit for a load includes a first stage and a second stage. The first stage includes a linear regulator circuit configured to maintain an output voltage at a predetermined output voltage level. The linear regulator includes an input for shutting the linear regulator off when an input voltage exceeds a predetermined shut off threshold. The second stage includes a high voltage detection circuit coupled to the input of the linear regulator. The high voltage detection circuit is configured to detect the level of the input voltage and to shut the linear regulator off when the input voltage exceeds the predetermined shut off threshold. An under voltage lockout circuit may be included, the under voltage lockout circuit configured to set a minimum turn-on voltage for the load. | 2013-05-16 |
20130119959 | VOLTAGE ADJUSTING DEVICE FOR SOLID STATE DRIVE - A voltage regulating device includes a connector, a slot, a voltage regulating circuit, and a control module. The connector is obtains an initial voltage from an external power supply. The slot is configured for electrically connecting to a load. The voltage regulating circuit is connected between the connector and the slot. In accordance with user input into a keyboard connected to a control microchip as to a voltage level required, the voltage regulating circuit converts the initial voltage to a required test voltage and outputs the required test voltage to the load by the slot. The control microchip controls the voltage regulating circuit to convert the initial voltage into the required test voltage. | 2013-05-16 |
20130119960 | APPARATUS, METHOD AND SYSTEM FOR CONTROL OF AC/AC CONVERSION - A method, system and apparatus for controlling a pulse width modulator (PMW) converter for direct AC/AC conversion and/or AC voltage regulation. According to some embodiments of the invention, an output voltage may be provided, independent of the input voltage quality, thereby avoiding or minimizing power company irregularities, brownouts and the like. Embodiments of the present invention may be useful, for example, for use in connection with motors and motored devices or other applications. | 2013-05-16 |
20130119961 | DC/DC CONVERTER - In a DC/DC converter, a first operation section calculates a first operation value, based on a difference voltage between an instruction value for a high-voltage-side voltage and a detected value of a high-voltage-side voltage, a second operation section calculates a second operation value, based on a difference voltage between a voltage instruction value for a charge-discharge capacitor and a voltage detected value of the charge-discharge capacitor, and a switching control section obtains a conduction ratio, based on the first operation value and the second operation value, and controls, based on the conduction ratio, switching operations of first to fourth semiconductor circuits, thereby controlling the high-voltage-side voltage, and the voltage of the charge-discharge capacitor. | 2013-05-16 |
20130119962 | Intermediate Bus Architecture Power Supply Controller - A voltage controller is operable to generate control signals for controlling an intermediate bus voltage (V | 2013-05-16 |
20130119963 | BOOTSTRAP CIRCUIT AND ELECTRONIC DEVICE APPLYING THE SAME - A bootstrap circuit includes: a first switch element, coupled a clock signal; a second switch element, coupled to an operating voltage and the first switch element; a third switch element, coupled to the first switch element; a first charge storage unit, coupled to the second and third switch elements; and a voltage converting unit, coupled to the first charge storage unit as well as the first, second and third switch elements. When the clock signal is at a first logic state, the first charge storage unit is charged. When the clock signal is at a second logic state, a cross voltage of the first charge storage ensures that the voltage converting unit converts an input voltage to an output voltage. | 2013-05-16 |
20130119964 | MULTI-MEASUREMENT VORTEX FLOWMETER - Two-wire transmitters are described in which the required voltage that a control room must supply to the transmitter is lower at high current than at low current, thus freeing up more voltage for other uses, and in which a constant set of operating voltages may be maintained. A corrected pressure in a vortex flow meter may be determined that reflects the mass flow rate. Thus, the mass flow rate may be determined based on the corrected pressure reading and a measured volumetric flow rate. Density may be determined from pressure and temperature using a table containing error values based on a standard density determination and a relatively simple approximation. During operation of a flow meter, the stored error values may be linearly interpolated and the approximation may be computed to determine the density from the stored error value. | 2013-05-16 |
20130119965 | REGULATED BOOTSTRAP POWER SUPPLY - An exemplary power supply includes a low side switch and a high side switch. A driver controls operation of the high side switch. A bootstrap capacitor supplies power to the driver. An energy storage portion is in parallel with the bootstrap capacitor to provide control over whether a voltage of the bootstrap capacitor drops below a desired voltage. A voltage regulator is in parallel with the bootstrap capacitor for limiting current provided to the bootstrap capacitor and for regulating a voltage of the bootstrap capacitor. | 2013-05-16 |
20130119966 | TWO-DIRECTIONAL CURRENT DOUBLE-BOOST QUADRATIC DC/DC CONVERTER - A current reversible DC/DC double-boost quadratic converter, capable of performing high transformation ratios. | 2013-05-16 |
20130119967 | BANDGAP REFERENCE CIRCUIT AND POWER SUPPLY CIRCUIT - A BGR circuit includes a first bipolar transistor and a second bipolar transistor that are connected between a power supply terminal and a ground terminal, each base of the first bipolar transistor and the second bipolar transistor being connected to an output terminal. A first resistor is connected between the ground terminal and the first bipolar transistor. A second resistor and a third resistor are connected in series between the first resistor and the second bipolar transistor. A temperature correction circuit is connected between the ground terminal and a node between the second resistor and the third resistor, and includes a first transistor having a base connected to an end of the first bipolar transistor of the first resistor. The temperature correction circuit further includes a fourth resistor connected in series to the first transistor. | 2013-05-16 |
20130119968 | DC-DC CONVERTER WITH AN AUXILIARY CIRCUIT FOR PERFORMING SOFT-SWITCHING - A voltage conversion circuit apparatus that adjusts a timing skew between the switching control of the first switching element and the switching control of the second switching element includes: a skew storage portion that stores a timing skew between the switching controls of the first and second switching elements after the voltage conversion circuit apparatus is manufactured; and a timing adjustment portion that corrects the stored timing skew and thereby adjusts the timing relation between a first pulse signal and a second pulse signal so as to bring within a permissible range the timing skew that occurs when the switching controls of the first and second switching elements are performed by using the first pulse signal and the second pulse signal. | 2013-05-16 |
20130119969 | Utilizing an On-Chip Transformer to Generate Quadrature Signals - Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a single-phase signal via a transformer, one or more variable capacitors, and one or more variable resistors integrated on-chip. The transformer may comprise a plurality of loops fabricated in a plurality of metal layers in the chip. Each of the one or more variable capacitors may comprise a configurable capacitor bank and each of the one or more variable resistors may comprise a configurable resistor bank. The one or more capacitor banks may be programmatically configured on-chip, based on a frequency of the single-phase signal. The one or more resistor banks may be programmatically configured on-chip, based on a frequency of said single-phase signal. | 2013-05-16 |
20130119970 | CONVERTER - A DC voltage source converter for use in high voltage DC power transmission comprising at least one chain-link converter connected between first and second DC terminals. The or each chain-link converter includes a chain of modules connected in series and each module including at least one pair of semiconductor switches connected in parallel with an energy storage device. The or each chain-link converter is operable when DC networks are connected to the first and second DC terminals to control switching of the modules to selectively charge or discharge the energy storage device of one or more of the modules, as required, to offset any difference in the DC voltage levels of the DC networks. | 2013-05-16 |
20130119971 | METHOD AND DEVICE FOR IDENTIFYING AN ALLOCATION OF CONTROL CIRCUITS TO AT LEAST ONE CONTROL DEVICE - The present invention relates to a method and a device for identifying an allocation of control circuits to at least one control device. In this context, it can be checked whether wiring for example of heating circuits and/or sensors to a central control device is correct. Provided actuation patterns are switched on at a number of control circuits. This makes it possible to identify correct wiring efficiently and without error. The invention can be used in vehicle construction, and especially in aircraft construction. | 2013-05-16 |
20130119972 | SYSTEM AND METHOD FOR MONITORING ELECTRICAL POWER USAGE IN AN ELECTRICAL POWER INFRASTRUCTURE OF A BUILDING - Some embodiments can concern a method of using an electrical sensor device. The method can include: determining a first current measurement of a first current in an electrical power infrastructure and a first phase angle measurement of the first current; determining that a first load is coupled to the electrical power infrastructure; while the first load is coupled to the electrical power infrastructure, determining a second current measurement of a second current in the electrical power infrastructure and a second phase angle measurement of the second current; and using a Kalman filter to determine one or more first calibration coefficients for the electrical sensor device at least in part using the first current measurement, the second current measurement, the first phase angle, and the second phase angle. Other embodiments are disclosed. | 2013-05-16 |
20130119973 | AMBULATORY INFUSION DEVICE WITH SENSOR TESTING UNIT - An ambulatory infusion device for infusion of a liquid drug into a patient's body over an extended period of time and methods thereof are disclosed. The device includes a sensor assembly, which produces a sensor assembly output based on an infusion characteristic of the ambulatory infusion device and based on a supply voltage/current, and a supply unit which is coupled to a sensor of the sensor assembly and generates the supply voltage/current. A sensor testing unit detects a failure of the sensor assembly, wherein the sensor testing unit is coupled to the sensor assembly and the supply unit, and the sensor testing unit carries out a sensor testing sequence. The sensor testing sequence includes controlling the supply unit so as to produce a variation of the supply voltage/current, and determining whether the variation of the supply voltage/current produces a corresponding variation of the sensor assembly output. | 2013-05-16 |
20130119974 | SYSTEM AND METHOD FOR TAMPER DETECTION IN A UTILITY METER - Systems and methods for detecting the removal of a meter cover are provided. For example, a tamper-detect energy meter may include metering circuitry, a processor, a tamper detect switch, and a cover with a switch interface surface. The tamper detect switch may be triggered from an open circuit state to a closed circuit state as the switch interface surface of the cover contacts the tamper detect switch during removal. | 2013-05-16 |
20130119975 | CURRENT DETECTOR - A current detector includes an electronic circuit board on which a circuit for processing a detection signal of a Hall element disposed in a gap portion of a magnetic core is mounted, and a spring member such as a coil spring that is made of a conductor electrically connected to a ground pattern on the electronic circuit board, and that is supported on the electronic circuit board and is in contact with the magnetic core. The magnetic core, a busbar for current detection, and the electronic circuit board on which the Hall element is mounted are held in a fixed positional relationship by an insulating casing. | 2013-05-16 |
20130119976 | High voltage detection in power system electrical high voltage line - An electrical power line voltage measurement device comprises a probe including an insulated shield supporting an electrode to sense voltage from one phase of the power line. The shield houses a high voltage resistor connected in series with the electrode. A meter comprises a housing operatively associated with the shield and enclosing a measurement circuit electrically connected to the high voltage resistor for measuring leakage current. A calibration circuit correlates measured leakage current to approximate power line voltage. A display is driven by the measurement circuit for displaying approximate power line voltage. | 2013-05-16 |
20130119977 | SENSING ELEMENT FOR SENSOR ASSEMBLY - A probe for use in a sensor assembly includes an sensing element body and an sensing element coupled to the sensing element body. The sensing element is at least partially capacitively coupled to a signal processing device. The sensing element generates an electromagnetic field when at least one signal is received, and a loading is induced to the sensing element when an object is positioned within the electromagnetic field. | 2013-05-16 |
20130119978 | INDUCTIVE SENSOR DEVICE AND INDUCTIVE PROXIMITY SENSOR WITH AN INDUCTIVE SENSOR DEVICE - An inductive sensor device for detecting a magnetic field change caused by an object approaching in the region of an influencing side of the inductive sensor device includes at least one coil system having a transmitting coil fed with alternating current and first and second receiving coils. The two receiving coils are connected in series in opposite senses, the first receiving coil is disposed in front of the transmitting coil and the second receiving coil is disposed behind the transmitting coil, relative to the influencing side. A screen is provided behind the second receiving coil relative to the influencing side. An inductive proximity sensor with an inductive sensor device is also provided. | 2013-05-16 |
20130119979 | LEAKAGE FLUX PROBE FOR NON-DESTRUCTIVE LEAKAGE FLUX-TESTING OF BODIES CONSISTING OF MAGNETIZABLE MATERIAL - A leakage flux probe for non-destructive leakage flux-testing of bodies consisting of magnetizable material, in particular of pipes consisting of ferromagnetic steel, having a plurality of sensors disposed one behind the other in a straight line for detection of near-surface flaws in the body. In order to create a leakage flux probe for non-destructive leakage flux-testing of bodies consisting of magnetizable material, in particular of pipes consisting of ferromagnetic steel, which in a main testing direction has a broadened directional characteristic. At least two similar sensors are disposed and interconnected in a sensor package in a different angular orientation with respect to the main testing direction one above the other, one next to the other or one lying inside the other. The sensor packages disposed generally in a line one behind the other can be influenced individually by the generated leakage flux of an existing flaw. The individual sensors of the sensor package are spaced apart from each other by such a small spaced interval that the interconnected sensors of a sensor package are collectively influenced by the generated leakage flux of an existing flaw. | 2013-05-16 |
20130119980 | MAGNETIC SENSOR DEVICE - By providing a first magnet and a second magnet on wall surfaces of a hollow section where paper money is conveyed such that different magnetic poles face each other, a gradient magnetic field is formed wherein both a magnetic field component in an opposing direction to the magnets and a magnetic field component in a conveyance direction of the paper money include a zero point. An AMR element is provided between the paper money and the first magnet. The AMR element is enclosed by a multi-layered substrate and covered with resin. The AMR element is provided in an area where the magnetic field intensity is weak, which is where the magnetic field intensity in the gradient magnetic field in the conveyance direction is near zero. The paper money passes through an area where the magnetic field intensity of the gradient magnetic field is strong. | 2013-05-16 |
20130119981 | WIRELESS RADIO FREQUENCY COIL FOR MAGNETIC RESONANCE IMAGING, METHOD OF CONTROLLING THE COIL, AND MAGNETIC RESONANCE IMAGING APPARATUS USING THE COIL - A wireless radio frequency coil for magnetic resonance imaging (MRI) is provided. The wireless radio frequency coil including a wireless radio frequency coil unit configured to transmit, receive or transmit and receive a radio frequency signal; a power supply configured to provide a power voltage for operation of the wireless radio frequency coil unit; a switch connected to the power supply and the wireless radio frequency coil unit; a sensor configured to detect signals discharged from a space in which the wireless radio frequency coil unit is located; and a controller configured to provide or shut off the power voltage to the wireless radio frequency coil unit by controlling the switch according to a result obtained from the sensor. | 2013-05-16 |
20130119982 | Magnetic Resonance Tomography System, Receive Apparatus and Method - A magnetic resonance tomography (MRT) system has a receive apparatus disposed in a magnetic field, in which a receive coil is coupled to an input of an analog/digital converter. The analog/digital converter is configured for this purpose. A digital output of the analog/digital converter is coupled via a digital mixer device and a clock-rate-reduction device to a data output of the receive apparatus. The mixer device is configured to mix a predetermined frequency band of the MR signal downwards into an intermediate frequency range and create a digital IF signal. | 2013-05-16 |
20130119983 | METHOD AND MAGNETIC RESONANCE SYSTEM TO GENERATE ANGIOGRAPHY IMAGES - In the generation of MR angiography images of a predetermined three-dimensional volume segment of a living examination subject using means a magnetic resonance system, MR data in the volume segment are acquired by radial acquisition of k-space. The MR data are analyzed in order to subdivide the MR data into groups, with each group including only the MR data that correspond to a specific heart beat phase of the heat of the examination subject. MR angiography images are generated based only on the MR data of one of these groups. | 2013-05-16 |
20130119984 | TECHNIQUES FOR CORRECTING MEASUREMENT ARTIFACTS IN MAGNETIC RESONANCE THERMOMETRY - Techniques for correcting measurement artifacts in MR thermometry predict or anticipate movements of objects in or near an MR imaging region that may potentially affect a phase background and then acquire a library of reference phase images corresponding to different phase backgrounds that result from the predicted movements. For each phase image subsequently acquired, one reference phase image is selected from the library of reference phase images to serve as the baseline image for temperature measurement purposes. To avoid measurement artifacts that arise from phase wrapping, the phase shift associated with each phase image is calculated incrementally, that is, by accumulating phase increments from each pair of consecutively scanned phase images. | 2013-05-16 |
20130119985 | MRI METHOD FOR RETROSPECTIVE MOTION CORRECTION WITH INTERLEAVED RADIAL ACQUISITION - A motion-corrected magnetic resonance imaging method comprises: sequentially acquiring a plurality of interleaved magnetic resonance radial acquisition datasets using a magnetic resonance scanner; reconstructing each magnetic resonance radial acquisition dataset into a corresponding image to generate a set of images, the reconstructing including expanding radial k-space lines of the magnetic resonance radial acquisition dataset into corresponding radial bands in k-space using a generalized auto-calibrating partially parallel acquisition (GRAPPA) operator; selecting a reference image from the set of images; performing three-dimensional spatial registration of each image of the set of images except the reference image with respect to the reference image to generate a spatially registered set of images; and combining the spatially registered set of images to generate a motion corrected image. | 2013-05-16 |
20130119986 | IMAGE ACQUIRING METHOD AND IMAGE ACQUIRING APPARATUS - The invention relates to a method for acquiring, by use of a continuous-wave electron spin resonance imaging scheme that sweeps a magnetic field, a | 2013-05-16 |
20130119987 | Spatially Coincident MRI Receiver Coils and Method For Manufacturing - A magnetic resonance imaging receiver coil provides for high SNR and high uniformity over a range of loading conditions with layers, or stacks, of independent conductive elements. The plurality of layers preload the receiver coil reducing the circuit variation as the subject coupling and loading varies. The preload is such that coil performance, or SNR, is maintained over a large range of impedance variation. This configuration is designed to exceed the performance of single trace coils over a range of impedance consistent with variations associated with different subjects, and may also incorporate coils of different resonance frequencies. | 2013-05-16 |
20130119988 | Local Coil - A local coil for a magnetic resonance tomography device includes a plurality of antenna elements. Each antenna element of the plurality of antenna elements has two conductor tracks. The conductor tracks are disposed on opposite sides of an insulator and are connected electrically conductively to one another by plated through-holes through the insulator. In areas, in which conductor tracks of at least two antenna elements of the plurality of antenna elements cross, at least one antenna element of the at least two antenna elements only has a conductor track on one side of the insulator. | 2013-05-16 |
20130119989 | MRT System with a Magnetic Coil and Method for Manufacturing a Circuit Arrangement for Switching a Coil Current - In a magnetic resonance tomography (MRT) system, a current strength of a coil current is controllable by a plurality of semiconductor power switches as a function of a control signal. The plurality of semiconductor power switches receive the control signal at respective control inputs from a control line. In each of at least two semiconductor power switches of the plurality of semiconductor power switches, a compensation resistance element is connected between the control input and the control line. Resistance values of the compensation resistance elements are different. | 2013-05-16 |
20130119990 | SYSTEM FOR ORDERING FREQUENCY DOMAIN COMPONENTS REPRESENTING MR IMAGE DATA - A system orders acquisition of frequency domain components representing MR image data for storage in a storage array (e.g., k-space). A storage array of individual data elements stores corresponding individual frequency components comprising an MR dataset. The array of individual data elements has a designated center and individual data elements individually have a radius to the designated center. A magnetic field generator generates a magnetic field for use in acquiring multiple individual frequency components corresponding to individual data elements in the storage array. The individual frequency components are successively acquired in an order in which radius of respective corresponding individual data elements increases and decreases as the multiple individual frequency components are sequentially acquired during acquisition of an MR dataset representing an MR image. A storage processor stores individual frequency components acquired using the magnetic field in corresponding individual data elements in the array. | 2013-05-16 |
20130119991 | HIGH-FREQUENCY COIL AND MAGNETIC RESONANCE IMAGING DEVICE EMPLOYING SAME - A technique is provided to reserve large examination space in the tunnel type MRI apparatus, without increasing production cost nor reducing significantly irradiation efficiency and homogeneity in an irradiation distribution within an imaging region. The present invention provides an RF coil unit in which four partial cylindrical coils are placed with a gap therebetween in the circumferential direction inside a cylindrical RF shield, in such a manner that two pairs of the partial cylindrical coils are opposed to each other, and magnetic fields produced by the individual partial cylindrical coils are combined, thereby producing a circularly polarized wave field or an elliptically polarized wave field. The partial cylindrical coil is provided with a partial cylindrical conductor, multiple first conductors substantially parallel with the central axis of the RF shield, multiple capacitors connecting both ends of the first conductors with the partial cylindrical conductor, and a second conductor adjacent to at least one of the ends of the first conductor. The partial cylindrical coils are respectively provided with high frequency signals having a desired amplitude ratio and phase difference, while a reference frequency thereof being identical. | 2013-05-16 |
20130119992 | Automatic Locator Antenna Tuning System - A tuning system for a receiver of magnetic field signals. The system utilizes a stable magnetic source of known frequency, and detects a strength of the magnetic field at an antenna assembly. The strength of the magnetic field is recorded by a processor, and a control signal is adjusted to change the center frequency of the antenna assembly. Further, two or more antennas in an antenna assembly may be balanced through the same method. A variable reactance means in communication with the processor is utilized to change the center frequency of individual antennas and the antenna assembly as a whole to tune the antenna and optimize a signal to noise ratio at the receiver. | 2013-05-16 |
20130119993 | METHOD AND SYSTEM FOR PASSIVE ELECTROSEISMIC SURVEYING - A method of passive surveying comprises generating one or more detected signals by passively detecting a signal generated within a subsurface earth formation due to a seismoelectric response or an electroseismic response in at least one porous subsurface earth formation containing at least one fluid, and processing the one or more detected signals to determine at least one property of the subsurface earth formation. | 2013-05-16 |
20130119994 | APPARATUS, SYSTEM AND METHOD FOR ESTIMATING A PROPERTY OF A DOWNHOLE FLUID - An apparatus is disclosed for estimating a property of a downhole fluid, the apparatus including but not limited to a test cell that receives the downhole fluid; a swept frequency electromagnetic energy source that emits electromagnetic energy toward the downhole fluid in the test cell; an electromagnetic/mechanical device that is immersed in the fluid and receives the emitted electromagnetic energy, wherein the emitted electromagnetic energy being emitted is swept about a resonant frequency for the electromagnetic/mechanical device; and an electromagnetic energy detector in electromagnetic communication with the electromagnetic/mechanical device immersed in the fluid, the electromagnetic energy detector producing an output signal indicative of the downhole fluid property. A system and method for estimating a property of a downhole fluid are also disclosed. | 2013-05-16 |
20130119995 | Rugged Three-Axis Inclinometer - A method and apparatus for a rugged three-axis inclinometer for determining an object's orientation with respect to a gravitational field. Components of the apparatus include but not limited to a magnet, a non-magnetic casing, a ferrofluid, one or more non-magnetic gravitational field aligning materials attached to the magnet and a plurality of angle sensors attached to the non-magnetic casing. In this regard, when the apparatus is rotated, the gravitational field aligning materials maintain a constant orientation of the magnet and the angle sensors experience different magnetic field strengths as they rotate around the magnet. The position of the apparatus, with respect to the gravitational field can then be calculated based on the angle sensor outputs. | 2013-05-16 |
20130119996 | Electrode Assembly for Marine Electromagnetic Geophysical Survey Sources - Disclosed are methods and systems that include a multiple-tube electrode assembly. An embodiment discloses an electrode assembly, comprising: a carrier body comprising an elongated support; and electrically conducting surfaces longitudinally spaced along the carrier body, wherein the electrically conducting surfaces are electrically coupled in parallel. | 2013-05-16 |
20130119997 | METHOD AND APPARATUS FOR BATTERY GAUGING IN A PORTABLE TERMINAL USING AMOLED DISPLAY - Provided is a battery gauging method for a portable terminal including an active matrix organic light emitting diode (AMOLED) display. The battery gauging method may measure a voltage value of a battery, may determine, for each pixel, RGB information associated with image data buffered in a frame buffer, may determine, for each pixel, a preliminary compensation value corresponding to determined RGB information so as to calculate a compensation value by adding preliminary compensation values of all pixels, and then determine a residual quantity of the battery based on the measured voltage value and the compensation value. | 2013-05-16 |
20130119998 | APPARATUS AND METHOD FOR DETERMINING BATTERY CURRENT CONSUMPTION IN A PORTABLE TERMINAL - According to one embodiment, an apparatus for selecting a battery voltage table including current consumption information of applications, and applying an offset to a battery output voltage according to current consumption of applications. The apparatus for determining a battery status in a portable terminal includes a memory unit configured to store a battery voltage table defined according to current consumption, a control unit configured to determine an executed application, and a power estimation unit configured to estimate a battery level using the battery voltage table defined for each current consumption of applications and a battery output voltage. | 2013-05-16 |
20130119999 | Specimen Testing Device and Method for Creating Absorbed Current Image - Proposed is a technique of emphasizing a change in absorbed current obtained from a faulty part in a wiring section as a testing target more than in other parts of the wiring section. A specimen testing device is configured to output an image of absorbed current output from two probes during scanning of an electron beam so as to be operatively associated with the scanning of the electron beam and includes the following mechanism. When a faulty part of a wiring section on the specimen side with which two probes are in contact is irradiated with an electron beam, the resistance value at the faulty part changes more than that of irradiation of a normal wiring section with the electron beam. Such a change in resistance value is detected as a change in ratio between a resistance value of the wiring section specified by the two probes and a known resistance value. With this method, an absorbed current image corresponding to the faulty part can be made easily distinguishable from an absorbed current image of other parts of the wiring section. | 2013-05-16 |