39th week of 2010 patent applcation highlights part 27 |
Patent application number | Title | Published |
20100244749 | Method for feeding electric power to a planar light-emitting element - A method for feeding electric power to a planar light-emitting element which includes a planar anode electrode, a planar cathode electrode, a light-emitting layer provided between the anode electrode and the cathode electrode, two or more anode terminal portions protruding from the anode electrode and one or more cathode terminal portions protruding from the cathode electrode. The method includes sequentially providing the electric power to the anode terminal portions. | 2010-09-30 |
20100244750 | HAND LANTERN - A hand lantern includes a base, a circuit unit received in the base, a touch switch unit received in the base and electrically connected to the circuit unit, a rechargeable unit received in the base and electrically connected to the circuit unit for providing electricity, a illuminating unit received in the base and electrically connected to the circuit unit, a lantern connected to the base and electrically connected to the touch switch, and a handle connected to the lantern to be adapted to be held by hand. When user touches the lantern, the touch switch unit sends a trigger signal to the circuit unit. When the circuit unit receives the trigger signal, the circuit unit sends a switch signal to the illuminating unit to switch on/off the illuminating unit. | 2010-09-30 |
20100244751 | Menu Control for 1D Gesture Light Control System - A lighting system comprising a lamp arranged to transform electricity into a light beam having properties such as intensity, colour, colour temperature, direction and beam cone angle; a light control means arranged to adjust said light beam properties; an ultrasonic transmitter arranged to transmit ultrasonic signals; an ultrasonic receiver arranged to receive reflected ultrasonic signals; and a processing means arranged to derive a time-of-flight signal representing the time differences between said transmitted and received ultrasonic signals and to send control signals to said light control means in dependence of said time-of-flight signal, wherein said processing means and said light control means are further arranged to change from adjustment of one of said light beam properties to adjustment of another one of said light beam properties, if a predetermined behaviour in said time-of-flight signal is determined. | 2010-09-30 |
20100244752 | LIGHT CONTROL SYSTEM - A lighting system comprising a lamp arranged to transform electricity into a light beam having properties such as intensity, colour, colour temperature, direction and beam cone angle; a light control means arranged to adjust said light beam properties; an ultrasonic transmitter arranged to transmit ultrasonic signals; an ultrasonic receiver arranged to receive reflected ultrasonic signals; wherein said ultrasonic transmitter and/or receiver are mounted on a rotatable carrier, wherein driving means are present to rotate said carrier; and a processing means arranged to send an ultrasonic pulse repeatedly through said transmitter during rotation at a multitude of angular positions of said carrier and to determine after each pulse is sent if said receiver receives a reflected ultrasonic signal with an amplitude exceeding a predetermined threshold within a predetermined period, and to send control signals to said light control means in dependence of said determination. | 2010-09-30 |
20100244753 | METHOD AND ELECTRIC MACHINE FOR BRAKING A THERMAL ENGINE OF A VEHICLE DURING THE STOP PHASE THEREOF - A method for braking the thermal engine of an automobile using a multiple-phase rotary electric machine ( | 2010-09-30 |
20100244754 | Sensorless-Brushless Motor Control Device and Electric Fluid Pump Using the Same - A sensorless-brushless motor control device comprises an inverter, an inverter drive circuit that drives the inverter and a current control part that controls the inverter drive circuit according to a current command from a superior control part and includes a first order lag compensating part. The device is characterized by further comprising a control mode changeover judging part that judges changeover of a control gain of the current control part after startup of the sensorless-brushless motor in response to a motor revolution sensing signal from the inverter drive circuit and a control mode changeover part that changes over the control gain of the current control part in response to an output of the control mode changeover judging part. | 2010-09-30 |
20100244755 | Rotary electric machine control device - A rotary electric machine control device includes a positive/negative determination section that determines whether an output torque of the rotary electric machine is positive or negative; a correction parameter setting section that sets as a correction parameter a phase difference of a sinusoidal ripple correction wave for reducing torque ripple of the rotary electric machine with respect to a magnetic pole position of the rotary electric machine depending on whether the output torque is positive or negative; and a correction wave generation section that generates the ripple correction wave on the basis of the correction parameter. | 2010-09-30 |
20100244756 | High Voltage Integration Circuit With Freewheeling Diode Embedded in Transistor - A high voltage integrated circuit contains a freewheeling diode embedded in a transistor. It further includes a control block controlling a high voltage transistor and a power block—including the high voltage transistor—isolated from the control block by a device isolation region. The high voltage transistor includes a semiconductor substrate of a first conductivity type, a epitaxial layer of a second conductivity type on the semiconductor substrate, a buried layer of the second conductivity type between the semiconductor substrate and the epitaxial layer, a collector region of the second conductivity type on the buried layer, a base region of the first conductivity type on the epitaxial layer, and an emitter region of the second conductivity type formed in the base region. The power block further includes a deep impurity region of the first conductivity type near the collector region to form a PN junction. | 2010-09-30 |
20100244757 | Current Limit Control Method of DC Motor and Related Device and Circuit - A control method of a current limit of a DC motor includes generating a reference voltage according to a preset current limit value of a DC motor; comparing the reference voltage with the voltage drop of a power control switch which drives the DC motor to generate a compare result; and controlling the power delivered to the DC motor according to the compare result in order to limit the current of the DC motor. | 2010-09-30 |
20100244758 | FAN DEVICE WITH IMPROVED SPEED CONTROL MODULE AND PLURAL FAN SYSTEM CONSTRUCTED THEREBY - A fan device with improved speed control module includes a stator, a rotor, and a speed control module. The stator has a driving unit outputting currents for the stator to generate alternative magnetic fields and thus turn the rotor. The speed control module includes a control unit and a speed adjusting circuit, with the control unit generating a control command for the driving unit and further outputting a state signal for the speed adjusting circuit to control whether a PWM signal enters the control circuit or not. | 2010-09-30 |
20100244759 | SAFETY FEATURES FOR MOVING COMPONENTS OF ELECTRONIC DEVICES - The invention broadly contemplates a safety arrangement that transitions a moving component, for example a cooling fan housed within a chassis of an electronic device, between a first operating mode or condition and a second operating mode or condition. The first operating mode is a normal operating mode, allowing the component (fan) to operate (rotate) at full speed. The second operating mode is a safety or service mode, allowing the component (fan) to operate (rotate) at a reduced speed such that it is compliant with applicable safety regulations. | 2010-09-30 |
20100244760 | SYSTEM AND METHOD FOR DETECTING LOSS OF ISOLATION WHILE AN AC MOTOR IS OPERATING - Methods and systems are provided for detecting loss of isolation of a motor, connections, or phase cables while an AC motor is operating. The system includes a power supply that is substantially isolated from the ground or chassis having a power supply voltage, and a power inverter electrically coupled to the power supply. The power inverter is configured to provide AC current from the power supply in an AC phase at an AC terminal, with the phase having current at a fundamental frequency that controls the motor speed. An electric motor is electrically coupled to the AC terminal of the power inverter and has a chassis that is substantially electrically isolated from the AC terminal of the power inverter under normal operating conditions. A processor is configured to control the AC current provided by the power inverter. The processor is configured to receive a first voltage signal related to current flowing through a motor chassis. The first voltage signal includes a first component related to the fundamental frequency of the phases, and a second component related to the power supply voltage. The processor is further configured to filter the first voltage signal to attenuate the second component, to measure an amplitude of the first component, and to determine if an AC loss of isolation condition exists by comparing the amplitude of the first component to a fault value. | 2010-09-30 |
20100244761 | DEVICE TO SYNCHRONIZE THE CHANGE OF THE DRIVING MODE OF AN ELECTROMAGNETIC LOAD - A device for the change of the driving mode of an electromagnetic load from a first operating mode with pulse width modulation to a second operating mode that is linear by means of switching circuits. During a first operating mode, each of two outputs has a voltage value ranging from a first reference voltage to a second reference voltage. The device adapted to synchronize a change command signal from a first operating mode to a second operating mode of the electromagnetic load with the signal representative of the flow of current circulating within the load at substantially its average value and adapted to generate a first command signal in response to the synchronization. | 2010-09-30 |
20100244762 | Method and Device for Preparing Error Map and Numerically Controlled Machine Tool Having Error Map Preparation Function - In a numerically controlled machine tool which has a linear feed axis and a rotational feed axis and in which a main spindle and a table are movable relative to each other, a position error and an attitude error produced by an operation of a linear feed axis and a rotational feed axis are measured at a plurality of measurement points set within a movable range of the linear feed axis and the rotational feed axis, and the position error and the attitude error thus measured are stored as an error map in correspondence to a position of the linear feed axis and a rotation angle of the rotational feed axis. | 2010-09-30 |
20100244763 | CIRCUIT ARRANGEMENT FOR LOAD-DEPENDENT CONTROL OF CURRENT FLOW TIME IN MOTOR WINDINGS OF SELF-TIMED BIPOLAR STEPPER MOTORS - A circuit arrangement for automatic, load-dependent control of at least one winding current of a respective motor winding of a self-timed bipolar stepper motor, includes a first power driver circuit for a first motor winding and a second power driver circuit for a second motor winding. The circuit arrangement includes a first XOR gate and a second XOR gate, and a first resistor connected so as to couple the first XOR gate to an anode of a first diode. A cathode of the first diode is coupled to the comparator input of the first power driver circuit via a second resistor. A third resistor is connected so as to couple the second XOR gate to an anode of a second diode. A cathode of the second diode is coupled to the current-controlling comparator input of the second power driver circuit via a fourth resistor. A current path is configured so that a logic high at the output of the first XOR gate sets the comparator input of the first power driver circuit at a level configured to prevent current from being supplied to the first motor winding through the first power driver circuit. | 2010-09-30 |
20100244764 | APPARATUS FOR SENSORLESS POSITIONING WITH SIGNAL AMPLIFIER - A device and a method for determining the current position of a rotor, particularly the angle of rotation of the rotor, of an electric motor, wherein said device determines the current position of the rotor using the fluctuations of the armature current or the armature voltage of the electric motor. The fluctuations of the armature current or the armature voltage are separated from the fluctuations of the motor current or the motor voltage with the help of an amplifier unit dependent on a controllable offset value. The offset value is changed according to the motor current or the motor voltage. By virtue of the device and the method, the fluctuations of the armature current or the armature voltage can be separated from the fluctuations of the motor current or the motor voltage over the full measurement range of the motor current or the motor voltage. | 2010-09-30 |
20100244765 | SYSTEM AND METHOD OF MANAGING POWER AT A PORTABLE COMPUTING DEVICE AND A PORTABLE COMPUTING DEVICE DOCKING STATION - A method of managing power distribution between a portable computing device (PCD) and a PCD docking station is disclosed and may include determining that the PCD is docked with the PCD docking station, switching a power supply to the PCD from a PCD battery to a PCD docking station battery, and powering the PCD and the PCD docking station from the PCD docking station battery. Further, the method may include determining whether a PCD battery power equals a charge condition and charging the PCD battery when the PCD battery power equals the charge condition. The method may also include monitoring a PCD docking station battery power, determining whether the PCD docking station battery power equals a warning condition, and transmitting a first warning when the PCD docking station battery power equals the warning condition. | 2010-09-30 |
20100244766 | LOW BATTERY VOLTAGE ALERT SYSTEM - Certain embodiments of the present invention provide a system for alerting a low battery charge condition in a jump-starter. In an embodiment, the system is portable. The system includes a first battery. The first battery is configured to provide a first battery voltage across a positive terminal and a negative terminal of the first battery. The system also includes a voltage comparison circuit that is electrically connected to the positive terminal and the negative terminal of the first battery. The voltage comparison circuit is configured to compare a reference voltage to the first battery voltage. The system includes an alert circuit electrically connected to the voltage comparison circuit and configured to generate an output signal for a speaker. The system also includes a switch configured to toggle between an enabled state and a disabled state. In an embodiment, the switch includes a stopper tap. The alert circuit is configured to cause an audible alert when the first battery voltage is less than the reference voltage, and when the enabled state is true. When the enabled state is false (or the disabled state is true), the alert circuit will not cause the audible alert. In an embodiment, the system includes a display circuit to visually indicate the first battery voltage. | 2010-09-30 |
20100244767 | MAGNETIC INDUCTIVE CHARGING WITH LOW FAR FIELDS - A charging station wirelessly transmits power to mobile electronic devices (MEDs) each having a planar-shaped receiver coil (RC) and a capacitor connected in parallel across the RC. The station includes a planar charging surface, a number of series-interconnected bank A source coils (SCs), a number of series-interconnected bank B SCs, and electronics for energizing the SCs. Each SC generates a flux field perpendicular to the charging surface. The bank A and bank B SCs are interleaved and alternately energized in a repeating duty cycle. The coils in each bank are also alternately wound in a different direction so that the fields cancel each other out in a far-field environment. Whenever an MED is placed in close proximity to the charging surface, the fields wirelessly induce power in the RC. The MEDs can have any two-dimensional orientation with respect to the charging surface. | 2010-09-30 |
20100244768 | AUTOMOTIVE FOB SYSTEM - An automotive fob system may include an automotive fob and a fob charging receptacle. The automotive fob may have a loop feature, and include a power storage unit and a first inductive coil electrically connected with the power storage unit. The first coil may form a loop and be disposed in the loop feature. The fob charging receptacle may include a magnetic core configured to be inserted into the loop feature, and a second inductive coil wrapped around the core. The second inductive coil may be adapted to receive electrical current from a remote power source if electrically connected with the remote power source. | 2010-09-30 |
20100244769 | BATTERY PACK - A battery pack for an electric device is disclosed which includes: a group of battery cells interconnected in series; discharge control circuitry for converting DC voltage of the group into AC voltage; an AC-output terminal through which an output of the discharge control circuitry is supplied to the device; charge control circuitry for converting AC voltage of a commercial power source into DC voltage, to thereby charge the group; and a charging terminal through which electric power of the source is supplied into the group, wherein the AC-output terminal is connectable with a power-input connector of the device, and the charging terminal is connectable with a charging connector of the source, the pack further comprising a detector for detecting insertion of the power-input connector into the AC-output terminal, wherein the discharge control circuitry initiates a discharge control sequence for the group, if the insertion is detected, and does not initiate the discharge control sequence, in response to non-detection of the insertion. | 2010-09-30 |
20100244770 | MULTI BATTERY PACK SYSTEM, CONTROL METHOD THEREOF, AND BATTERY PACK USING THE SAME - A multi battery pack system is composed of a plurality of battery packs. The master battery pack receives a total voltage from each slave battery pack and calculates a target total voltage using its total voltage and total voltages of all slave battery pack whenever a predetermined time period passes, sends the calculated target total voltage to each slave battery pack, compares the target total voltage with its total voltage, and then connects or disconnects its cell group and output terminals according to the comparison result. The slave battery packs include at least one slave battery pack, which sends its total voltage according to a request of the master battery pack, receives a target total voltage from the master battery pack, compares the target total voltage with its total voltage, and then connects or disconnects its cell group and output terminals according to the comparison result. | 2010-09-30 |
20100244771 | MULTI BATTERY PACK SYSTEM, CONTROL METHOD THEREOF, AND BATTERY PACK USING THE SAME - A multi battery pack system is composed of a plurality of battery packs. The master battery pack receives a total voltage from each slave battery pack and calculates a target total voltage using its total voltage and total voltages of all slave battery pack whenever a predetermined time period passes, sends the calculated target total voltage to each slave battery pack, compares the target total voltage with its total voltage, and then connects or disconnects its cell group and output terminals according to the comparison result. The slave battery packs include at least one slave battery pack, which sends its total voltage according to a request of the master battery pack, receives a target total voltage from the master battery pack, compares the target total voltage with its total voltage, and then connects or disconnects its cell group and output terminals according to the comparison result. | 2010-09-30 |
20100244772 | Battery module - A battery module adapted for supplying power to an electric equipment includes an energy battery device, a power battery device and a charging device. The energy battery device includes a plurality of parallel conductive plates and energy battery groups each connected between the neighboring two conductive plates and including a plurality of parallel-connected energy cells. The power battery device is adapted to be connected with the supplied electric equipment and includes a power battery group formed by a series-connection of a plurality of power cells. The charging device has two input terminals connecting the energy battery device therebetween and two output terminals connecting the power battery device therebetween so that the power battery group can be charged by the energy battery device, the two output terminals connected with the electric equipment for supplying power to the electric equipment by the energy cells. | 2010-09-30 |
20100244773 | UNITY POWER FACTOR ISOLATED SINGLE PHASE MATRIX CONVERTER BATTERY CHARGER - Apparatus for unity power factor, isolated, single phase switch matrix converter/battery charger is provided. In one implementation, An AC grid voltage source is coupled to and inductor and a switching matrix. The inductor is charged and the switching matrix is controlled to crate various current paths for the voltage across the inductor to add to the AC grid voltage. The boosted AC grid voltage flow across an isolation transformer to be rectified and used to charge a battery matrix for an electric powered vehicle. | 2010-09-30 |
20100244774 | POWER SUPPLY AND DUAL-CHARGEABLE BATTERY PACK THEREIN - This invention discloses a power supply and a dual-chargeable battery pack therein, wherein the dual-chargeable battery pack comprises a main body provided with an electrical energy storage device, a first connecting device and a second connecting device. The first connecting device comprises a first charging terminal set and a first power output terminal set, wherein the first charging terminal set is configured to receive an input of a first power for outputting to the electrical energy storage device. The second connecting device comprises a second charging terminal set which is configured to receive an input of a second power for outputting to the electrical energy storage device. The electrical energy storage device is configured to output the electrical energy accumulated therein as a third power through the first power output terminal set. The second power is different than the first power. | 2010-09-30 |
20100244775 | BIDIRECTIONAL ENERGY CONVERTER - The invention provides a bidirectional converter that operates under an AC generation mode or a charge mode. The bidirectional converter may be a single component or circuit, which may include a DC-DC conversion stage using a unique “Smith 2 Stage conversion” technique and a DC-AC conversion stage or AC-DC conversion stage using a switchable filter depending on the mode. During the charge mode, the converter may be able to control the voltage and current of the DC output using a software algorithm, to match the battery being charged, or the DC receiver. This may enable the converter to control the nature of the DC output so it can be adapted to any energy storage technology. The controllable output voltage and synchronizable frequency may allow the converter to be used in series combinations to achieve a variety of high voltage outputs from simpler building blocks. | 2010-09-30 |
20100244776 | Magnetic Motor - A magnetic motor system includes a brushless motor with interdigitated permanent magnets longitudinally mounted on a rotor at equal radial positions, and stator windings to drive the rotor in response to pulses from a timer/driver, and stationary recapture windings to recover energy that would otherwise go to waste. One set of batteries is used to drive the motor through the timer/driver, and bridge rectifiers connected to the stationary recapture windings provide electrical current to charge a second set of batteries. The rotor shaft output provides kinetic energy to drive electrical generators, air compressors, etc. A shaft encoder connected to the rotor provides the information needed by the timer/driver to know which stator winding should be pulsed and with what polarity. A power pulse is provided at least every 12.5 degrees of rotation, making the motor self starting. | 2010-09-30 |
20100244777 | CHARGING CONTROL METHOD FOR SECONDARY BATTERY AND BATTERY CHARGER - A method and a charger for auxiliarily charging a secondary battery to a desired SOC with high accuracy. A charger for a secondary battery includes a charge termination condition storing unit which stores a relationship between open circuit voltages OCV of a plurality of secondary batteries and an amount of change of terminal voltage ΔV until a desired state of charge SOC is reached, which is previously created. A target terminal voltage Vmap at the time of the auxiliary charge is calculated by adding the amount of change of terminal voltage ΔV corresponding to the open circuit voltage OCV of a secondary battery to be auxiliarily charged to the open circuit voltage OCV which is measured. A terminal voltage Vb of the secondary battery at the time of auxiliary charge and the target terminal voltage Vmap are compared to each other by a comparison unit, and when the target terminal voltage Vmap is reached, auxiliary charge is terminated. | 2010-09-30 |
20100244778 | HIGH EFFICIENCY ADAPTIVE POWER CONVERSION SYSTEM AND METHOD OF OPERATION THEREOF - A power conversion system is disclosed. The system comprises a plurality of power conversion modules and a controller that turns on/off each power conversion module separately based on changing load conditions, and manages to keep each power conversion module running at its peak efficient state. | 2010-09-30 |
20100244779 | CHARGING CONTROL DEVICE AND ELECTRONIC APPARATUS USING SAME - A charging control device ( | 2010-09-30 |
20100244780 | Battery Recharging - A method and apparatus are disclosed for charging an internal battery of a topical negative pressure (TNP) system. The method includes the steps of determining a value of current required by a TNP system, comparing the required current value with a predetermined current value and setting a resistance provided by a variable resistance element responsive to the comparison to thereby supply unrequired current as battery charging current to an internal battery of the TNP system. | 2010-09-30 |
20100244781 | CELL MANAGEMENT SYSTEM - A cell management system and method for balancing energy across a plurality of cells coupled to a circuit bus. The system can include a transformer, two transformer switches, and for each cell, a first switch pair allowing transfer of energy between the transformer and the cell, and a second switch pair allowing removal or inclusion of the cell in the serial connection of cells. The system can include an energy storage device, a switch pair allowing transfer of energy between the transformer and the storage device, and for each cell, a third switch pair allowing transfer of energy between the storage device and the cell. The system can include cell, bus and storage device sensors and state estimators. The system can include a controller that controls the transformer switches, cell switches, and storage device switches based on the sensor readings and states. | 2010-09-30 |
20100244782 | CHARGING CONTROL DEVICE AND METHOD, CHARGING DEVICE, AS WELL AS PROGRAM - A battery state monitoring portion intermittently monitors the low voltage battery for supplying power to electrical components arranged in a vehicle while the power supply to the low voltage system load other than a +B load is stopped, a DCDC converter is stopped, and a +B power supply mode in which the vehicle cannot travel is set. A charging control portion starts up the DCDC converter and charges the low voltage battery with the power of a high voltage battery as a power source of the vehicle through the DCDC converter when the voltage of the low voltage battery becomes lower than or equal to a charging start voltage when the +B power supply mode is set. The present invention can be applied to a charging device of a battery of an electric vehicle. | 2010-09-30 |
20100244783 | Load current dependent reduction of charge battery current - Circuits and methods to charge batteries of a portable device simultaneously with supplying power to the device for its operation, using a power source with limited maximum current, as e.g. an USB port, have been achieved. The system invented relies upon digital control only. No direct sensing of the current required for the operation of the portable device is required. The control takes care that the sum of the charging current and of the current to run the portable device does not exceed the maximum allowable current of the power source. The current required to run the portable device has precedence over the charging current. | 2010-09-30 |
20100244784 | BATTERY CHARGING SYSTEMS - A circuit for charging a battery may include a switch operable for conducting a current flowing through the switch, and a first amplifier coupled to the switch and operable for adjusting the current according to an amount of power dissipation associated with the switch. | 2010-09-30 |
20100244785 | Source Power Limiting Charging System - Methods and systems for charging energy storage devices are disclosed. Often the charging circuit may have different levels of power available to charge the energy storage device depending on the state of other subsystems of the electronic system. The present invention provides a source power limiting charging system. Often the losses of the charging system and losses due to the power requirements of support systems are not well known and/or are variable. Controlling source power to the charging system maximizes the amount of power delivered to the energy storage device for a given value of these losses and avoids power contention with the other elements of the electronic system. Therefore, the power drawn from the power source by a controllable power limiting charging circuit is controlled to be less than a source power limit. | 2010-09-30 |
20100244786 | ENERGY STORAGE - The energy storage has an electrical machine with a rotor and a stator. The stator is separated from the rotor by an air gap and has at least one stator coil which, under operating conditions, interacts with the rotor via a rotating field. In one variant, the rotor surrounds the stator and is adapted to rotate about the stator. Another variant provides for the rotor to surround the stator and to be adapted to rotate within the stator. The rotor is associated with a rotating mass with which it forms a cylindrical body with two end faces and a lateral surface. In the area of at least one of its end to faces—in the installed position of the energy storage, of the bottom end face—the cylindrical body has at least one permanent magnet which corresponds with at least one stationary permanent magnet of identical polarity. | 2010-09-30 |
20100244787 | Control Parameter Adaptation Dependent on Rotational Speed - Disclosed are a method and an arrangement for controlling the output voltage of a generator arrangement. | 2010-09-30 |
20100244788 | Power regulation for large transient loads - Methods and circuits for power supply arrangement and control are disclosed herein. In one embodiment, a power supply can include: (i) an input capacitor coupled to an input terminal that is coupled to a power source, where the power source provides power that is constrained by a predetermined limit; (ii) an output capacitor coupled to an output terminal that is coupled to a load, where the load has a first load condition or a second load condition; (iii) a first regulator to convert an input voltage at the input terminal to an output voltage at the output terminal to power the load; (iv) a second regulator coupled to the first regulator; and (v) an energy storage element coupled to the second regulator, where the second regulator delivers energy from the energy storage element to the first regulator to maintain regulation of an output voltage at the output terminal when in the second load condition. | 2010-09-30 |
20100244789 | INTERLEAVED CONVERTER - The present invention includes: an input voltage detector detecting an input voltage of a parallel converter and outputting an input voltage signal; an output voltage detector detecting an output voltage of the parallel converter; and a controller. The controller includes an error amplifier comparing the output voltage signal and a reference voltage and outputting an error amplification signal; an arithmetic operator generating an ON time signal and an OFF time signal based on the input and output voltage signals and the error amplification signal; a phase signal generator generating plural phase signals having different phases based on the ON and OFF time signals and the error amplification signal; a pulse generator generating plural pulse-train signals synchronized with the respective phase signals based on the ON time signal, the error amplification signal and the phase signals; and a driver driving the switching units in accordance with the pulse-train signals. | 2010-09-30 |
20100244790 | CONSTANT CURRENT DRIVING DEVICE HAVING AN IMPROVED ACCURACY - An embodiment of a driving device is proposed for supplying at least one regulated global output current to a load. The driving device includes programming means for programming a value of the global output current within a global current range. Reference means are provided for supplying a reference voltage, which has a value corresponding to the value of the global output current. Conversion means are then used for converting the reference voltage into the global output current. In the driving device according to an embodiment of the invention, the conversion means include a plurality of conversion units for corresponding partial current ranges, which partition the global current range. Each conversion unit is adapted to convert the reference voltage into a partial output current that contributes to the global output current, with the partial output current that is within the corresponding partial current range. The driving device further includes control means for selectively enabling the conversion units according to the partial current range wherein the global output current falls and for controlling the reference voltage so as to swing in a partial voltage range for each partial current range (with the partial voltage ranges that are at least partly superimposed). | 2010-09-30 |
20100244791 | System and Method for Regulating a Power Supply - In an embodiment, a method for controlling an output voltage of a power supply system is disclosed. The method includes regulating the power supply to a first voltage. After regulating the power supply to a first voltage, the power supply is regulated to a second voltage, which includes changing an input to the power supply system, and altering charge at an output of the power supply system until the output voltage reaches the second output voltage. | 2010-09-30 |
20100244792 | TWO-PHASE TRANSFORMER-COUPLED BOOST CONVERTER - Various embodiments provide two-phase boost converters. One two-phase boost converter includes a node configured to be coupled to an input voltage and a transformer coupled to the node. The transformer includes primary and secondary windings, an inductor coupled in series with the primary winding, and an inductor coupled in series with the secondary winding. Another two-phase boost converter includes an inductor configured to be coupled to an input voltage, a node coupled to the inductor, and a transformer coupled to the node. The transformer includes primary and secondary windings, an inductor coupled in series with the primary winding, and an inductor coupled in series with the secondary winding. Yet another two-phase boost converter includes a transformer coupled to first and second external inductors. The transformer includes primary and secondary windings, an inductor coupled in series with the primary winding, and an inductor coupled in series with the secondary winding. | 2010-09-30 |
20100244793 | AVERAGE INDUCTOR CURRENT MODE SWITCHING CONVERTERS - An average current mode switching converter is described for providing a regulated output current independent of load conditions, and a regulated output voltage as a function of the load connected to the converter. The converter comprises: an inductor; a modulator configured to provide a regulated current through the inductor; a feed back loop coupled between the inductor and the modulator for regulating the current through the inductor; and a precharger configured and arranged so as to provide and maintain a preset minimum current through the inductor independent of the load so as to improve the recovery time of the converter from a step in the desired regulated output current. Also disclosed is a method of providing a regulated output current independent of load conditions at the output of an average current mode switching converter, and a regulated output voltage as a function of the load connected to the output of converter. The method comprises: providing a regulated current through an inductor; and regulating the current through the inductor independent of the load so that a minimum current flows through the inductor so as to improve the recovery time of the converter from a step in the desired regulated output current. | 2010-09-30 |
20100244794 | OUTPUT VOLTAGE ADAPTIVE VOLTAGE CONVERTING APPARATUS AND METHOD THEREOF - The present invention is related to, in general, an output voltage adaptive converting apparatus and method thereof. The invention provides an output voltage adaptive voltage converting apparatus, comprising a clock generating unit that generates predetermined clock signals; a switching amplifying unit that amplifies an input voltage (V | 2010-09-30 |
20100244795 | Current Source to Drive a Light Source in an Optical Sensor System - A current source circuit to drive a light source in an optical sensor system is disclosed. The current source includes an inductor connected in series with a resistor, and a diode coupled in parallel with the inductor and resistor. The current source is configured to receive a regulated direct current (DC) voltage and to provide the current through the inductor to the light source when a switch is closed, and to divert current through the inductor to the diode when the switch is open. | 2010-09-30 |
20100244796 | CURRENT TRIGGER CIRCUIT AND SWITCHING POWER CONVERTER USING THE SAME - A bias voltage is compared with a voltage difference in a detecting element according to the present invention. A bias voltage unit is coupled to the detecting element, so that they have a common voltage level to avoid noises when the circuit is operating. Accordingly, the erroneous detection caused by the noise interference can be avoided. Hence, a detecting element with a low resistance, such as an MOEFET, can be used in the present invention to decrease power consumption arisen from current detection and to further increase conversion efficiency. | 2010-09-30 |
20100244797 | CURRENT LIMITING CIRCUIT - A current limiting circuit for a boost converter includes a voltage divider circuit between a main switch which flows a current to an inductor and a comparator included in a current detecting circuit. The voltage divider circuit includes two transistors of the same type as that of the main switch, which are connected in series. One of the two transistors is a sub-switch which is connected between a voltage division point and a drain terminal of the main switch, and is turned on/off in synchronization with the main switch in accordance with an output signal of a control circuit. The other transistor is a detection resistance transistor which is connected between the voltage division point and a source terminal of the main switch, and whose gate terminal is connected to a bias voltage so that the detection resistance transistor is always on. | 2010-09-30 |
20100244798 | DC-DC CONVERTER AND POWER SUPPLYING SYSTEM USING SAME - A DC-DC converter includes first and second capacitors connected in series, a switching part, and a control circuit part which includes a voltage difference calculating part for calculating a difference between voltages of the first and second capacitors, a duty ratio controller for controlling duty ratio of on- and OFF-durations to decrease the voltage difference of the first and second capacitors on the basis of the calculated difference. A power supplying system including the DC-DC converter controls balance between first and second capacitors in voltage on the basis of the powering/regenerating discriminating signal. | 2010-09-30 |
20100244799 | SYSTEM AND METHOD FOR PHASE DROPPING AND ADDING - A multi-phase voltage regulator comprisies a plurality of current supplying stages, each current supplying stage configured to supply a local output current equaling at least a portion of a load current output from the multi-phase voltage regulator; and a plurality of control circuits, each control circuit coupled to a respective one of the plurality of current supplying stages, wherein each control circuit calculates a control signal based, at least in part, on a sampled current representative of the respective local output current and a sampled current representative of a master output current. The control signal from each control circuit causes the respective current supplying stage to be disabled gradually over a first time interval if the sum of the local output current and the master output current is detected as being below a respective first predetermined level. | 2010-09-30 |
20100244800 | SWITCHING POWER SUPPLY UNIT AND CONTROL CIRCUIT FOR SAME - There is provided a switching power supply unit having an overcurrent detection circuit capable of automatically selecting either a current detection method using an resistor or a current detection method using an external current detection resistor and of performing optimized overcurrent protection depending on applications. In the control circuit of the switching power supply unit for detecting a current flowing through a high-side switch as a current detection signal and comparing it with an overcurrent detection threshold value to detect an overcurrent and turning off the high-side switch to protect the switching power supply unit, a first current detection terminal connected to a power supply side terminal of the high-side switch or to a load side terminal of the high-side switch and a temperature compensating means to switch for temperature compensation on an overcurrent detection threshold value or on a current detection signal are provided. | 2010-09-30 |
20100244801 | CONTROLLER FOR SWITCHING REGULATOR, SWITCHING REGULATOR AND LIGHT SOURCE - A switching regulator ( | 2010-09-30 |
20100244802 | Power Converter with Transient Processing Capability - Transient processing mechanisms for power converters. Error generation circuitry in a power converter may generate an error signal based on the difference between a power converter output voltage and a reference voltage. Transient detection circuitry may detect whether the error signal exceeds at least a first threshold. If the first threshold is exceeded, timing control logic may generate a low band correction pulse to adjust the power converter output voltage, and thereby adjust the error signal to a level within the first threshold. If the error signal exceeds a second threshold, the timing control logic may generate a high band correction pulse to adjust the power converter output voltage, and thereby adjust the error signal to a level within the second threshold. The timing control logic may initiate a low band blanking period following the low band correction pulse and high band blanking period following the high band correction pulse. | 2010-09-30 |
20100244803 | Switching Converter with Plural Converter Stages having Calibrated Current Uptake - A switching converter according includes a control arrangement to furnish a control signal dependent on the output voltage, as well as a first and at least one second converter stage. Each converter includes an inductive storage element, a ramp signal generator to furnish a signal having a ramp slope, a pulse width modulator which receives the control signal and the ramplike signal and which furnishes a pulse width modulated signal, and a driver circuit which receives the pulse width modulated signal and the input voltage and which applies the input voltage to the inductive storage element depending on the pulse width modulated signal. The ramp slope of the ramplike signal of the at least one second converter stage is adjustable. The ramp signal generator of the second converter stage receives a calibration signal which depends on the inductance of the inductive storage element of the first converter stage. | 2010-09-30 |
20100244804 | METHOD AND APPARATUS OF LOW CURRENT STARTUP CIRCUIT FOR SWITCHING MODE POWER SUPPLIES - A startup circuit for a switching-mode power supply (SMPS) includes a first voltage detector configured to trigger the switching-mode power supply from a startup mode to a normal operation mode when an input supply voltage exceeds a first threshold voltage, a current consumption in the first voltage detector in the startup mode being determined by a reverse leakage current of a diode. A feedback circuit is coupled to the first voltage detector and being capable of maintaining a positive feedback loop with a current consumption of no more than a microampere. A second voltage detector is coupled to the first voltage detector and the feedback circuit, and is configured to trigger the switching-mode power supply to switch from the normal operation mode to the startup mode when the input supply voltage is below a second threshold voltage. | 2010-09-30 |
20100244805 | POWER SUPPLY VOLTAGE DETECTION CIRCUIT - A power supply voltage detection circuit of the present invention includes a reference signal generation circuit that generates a reference signal according to a power supply voltage, a first transistor having a current flowing between a first terminal and a second terminal, where the current is controlled according to the reference signal, a voltage generation circuit that generates a control voltage according to a potential difference between the power supply voltage and the first terminal of the first transistor, and a second transistor that controls whether or not to output the power supply voltage according to the control voltage. Such circuit configuration enables to accurately detect a low voltage state of the power supply voltage. | 2010-09-30 |
20100244806 | AUTARKES FELDGERAT ORDER AUTARKER FUNKADAPTER FUREIN FELDGERAT DER AUTOMATISIERUNGSTECHNIK - The invention relates to an autarkic field device or an autarkic radio adapter ( | 2010-09-30 |
20100244807 | DC-DC CONVERTER AND A METHOD FOR PRODUCING THE SAME - A DC-DC converter adopted in a mobile device, for converting a DC input voltage to a DC output voltage is provided. The converter comprises an input circuit, a control circuit, and a switch. The input circuit is connected in series with a line for supplying the DC input voltage and includes a parallel connection of a first capacitor and a snubber circuit. The control circuit is provided for producing a control signal. The switch, connected with the input circuit, is adapted to turn ON or OFF in accordance with the control signal, so as to produce the DC output voltage. | 2010-09-30 |
20100244808 | METHOD AND CIRCUIT FOR LOW POWER VOLTAGE REFERENCE AND BIAS CURRENT GENERATOR - A system and method are provided for a PTAT cell with no resistors which can operate at low power, has less sensitivity to process variation, occupies less silicon area, and has low noise. Further, a system and method are provided to scale up the reference voltage and current through a cascade of unit cells. Still further, a system and method are provided for PTAT component to be fine-tuned, advantageously providing less process variability and less temperature sensitivity. | 2010-09-30 |
20100244809 | SENSOR PRODUCT FOR ELECTRIC FIELD SENSING - A sensor product web for electric field sensing. The sensor includes a substrate, sequential electrically conductive areas on a surface of the substrate, conductors, an output connected to the electrically conductive areas by one of the conductors, and a via extending through the substrate, forming an electrically conductive path connecting the electrically conductive areas to the output by the conductor on a reverse surface of the substrate. | 2010-09-30 |
20100244810 | SENSOR PRODUCT FOR ELECTRIC FIELD SENSING - A sensor product web for electric field sensing. The sensor includes a substrate, sequential electrically conductive areas on a surface of the substrate, conductors, an output connected to one of the electrically conductive areas by one of the conductors, a dielectric layer arranged on top of the conductors, and an electrically conductive layer arranged on top of the dielectric layer on a same surface of the substrate as the electrically conductive areas, the dielectric layer being discontinuous at the conductor which is in contact with the electrically conductive area. | 2010-09-30 |
20100244811 | High bandwidth oscilloscope for digitizing an analog signal having a bandwidth greater than the bandwidth of digitizing components of the oscilloscope - A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content. | 2010-09-30 |
20100244812 | ULTRASOUND PROBE, METHOD FOR MANUFACTURING THE SAME, AND ULTRASOUND DIAGNOSTIC APPARATUS - In an ultrasound probe ( | 2010-09-30 |
20100244813 | BRIDGE SENSOR WITH COLLOCATED ELECTRONICS AND TWO-WIRE INTERFACE - A transducer, including: a housing; a bridge sensor circuit disposed within the housing and including at least one micro electro-mechanical systems (MEMS) sensing elements and first and second output ports; circuitry disposed within the housing; and an input/output (I/O) line electrically connected to the circuitry, accessible at an exterior of the housing, and adapted for receipt of input voltage or current. The circuitry is for generating a single data signal that combines respective outputs of the first and second output ports, and transmitting the DC-coupled single data signal on the I/O line. The circuitry is for generating and transmitting to the bridge sensor circuit an excitation current or voltage using the input voltage or current. | 2010-09-30 |
20100244814 | Method for determining the resonant frequency(s) of an energized power line carrier line (wave) trap - A method for testing a line trap of the type whose blocking characteristics are a function of its resonant frequencies without requiring the line trap to be de-energized along with the transmission line to which the trap is connected by injecting a signal into the transmission line over a range of frequencies including at least one of the line trap's expected resonant frequencies; measuring the magnetic field strength produced by the current through the line trap's main coil and the total current flowing through the line trap, and computing the ratio of the magnetic fields where the ratio is computed over a range of frequencies that includes the expected resonant frequency(s) of the line trap, such that the resonant frequencies are indicated where said ratio is at a local maxima or minima. | 2010-09-30 |
20100244815 | Position/displacement measuring system - A position/displacement measuring system is provided comprising at least one magnetically encoded scale body with at least one encoding track and a sensor device with at least one sensor sensitive to the encoding, the at least one encoding track comprising main fields of at least a first type and a second type which are arranged in a periodically alternating manner in at least a first direction, the subfields of the first type and second type being north pole fields and south pole fields, wherein the main fields of the first type and the main fields of the second type are each subdivided into subfields of at least two different types; wherein a length and/or an encoding strength of the subfields within a main field varies in at least the first direction; and wherein, in the main fields of the first type, the total length in the first direction and/or the total surface of field portions of the first type is greater than the total length and/or the total surface of field portions which are not of the first type, and in the main fields of the second type, the total length in the first direction and/or the total surface of field portions of the second type is greater than the total length and/or the total surface of field portions which are not of the second type. | 2010-09-30 |
20100244816 | Resolver - A resolver comprises a first coil layer and a second coil layer each formed on a flat plate and an insulating layer formed between the first coil layer and the second coil layer. A SIN signal excitation coil includes a SIN first coil formed in the first coil layer and a SIN second coil formed in the second coil layer. A COS signal excitation coil includes a COS first coil formed in the first coil layer and a COS second coil formed in the second coil layer. | 2010-09-30 |
20100244817 | Resolver - A resolver includes an excitation coil, an excitation signal output circuit for outputting an excitation signal to the excitation coil, a search coil for receiving a magnetic field generated in the excitation coil, and an output signal processing circuit for processing a detection signal detected by the search coil. The resolver further includes a noise cancel circuit configured to previously detect noise from an output signal of the excitation signal output circuit and to output a cancel signal having an opposite phase to that of the noise to the output signal processing circuit. | 2010-09-30 |
20100244818 | APPARATUS AND METHOD FOR TRANSDUCING AN IN VITRO OR MAMMALIAN SYSTEM WITH A LOW-FREQUENCY SIGNAL - Method and apparatus for generating and selecting low-frequency time-domain signals capable of transducing a mammalian system, to produce an agent-specific effect on the system, are disclosed. Low-frequency time-domain signals are generated in the presence of an injected magnetic stimulus, and the resulting signals are selected by a scoring algorithm, and optionally, by testing each signal identified by the scoring algorithm for its ability to produce an agent-specific response in a in vitro system containing components that are responsive to the agent. The selected signals are used to transduce the mammalian system by applying the signals to an electromagnetic transduction coil that holds the sample. | 2010-09-30 |
20100244819 | MEMS GYROSCOPE MAGNETIC SENSITIVITY REDUCTION - A tuning fork gyroscope that is insensitive to magnetic field gradients is provided. The tuning fork gyroscope includes a first electrically conducting proof mass and a second electrically conducting proof mass connected through electrically conducting suspensions to anchors attached to one or more insulating substrates, and an electrical-resistance mid-point electrically connected to opposing ends of the first electrically conducting proof mass and to opposing ends of the second electrically conducting proof mass. The tuning fork gyroscope provides an input to a sense charge amplifier. The sense charge amplifier generates an output signal indicative of a rotation of the tuning fork gyroscope. The output signal is independent of a magnetic field gradient. | 2010-09-30 |
20100244820 | Microchip for detection of poor sources of electrical and magnetic fields - The invention relates to a Microchip for the detection of poor sources of electrical and/or magnetic fields. To detect such poor electrical sources hidden in a body is a difficult problem for which was found a solution by this invention. The invention solves this problem by a Microchip consisting of a plate with parallel rows of recesses, in each recess is a cristall with a magnetic activity, between the rows are one or more wires connected with a voltage source and one or more wires connected with a voltmeter, the whole surface of the plate with the cristals in the recesses and the wires is embeded in a layer of semiconducting polimeres. | 2010-09-30 |
20100244821 | ROPE TESTER DEVICE - In order to reduce noise due to the rope vibration in the rope tester, a mounting shaft extending perpendicular to the running direction of the wire rope is positioned in front of the rope tester, and a hook-shaped engagement piece, which extends from the rope tester and is slidable or rotatable into an opened or closed position, is brought into engagement with the mounting shaft so that the rope tester is held movable in the perpendicular direction relative to the running direction of the wire rope. | 2010-09-30 |
20100244822 | METHOD AND SYSTEM TO PERFORM PHASE CORRECTION FOR SPECIES SEPARATION IN MAGNETIC RESONANCE IMAGING - Methods and systems are provided for processing a magnetic resonance images. In one embodiment, first and second sets of lines of magnetic resonance imaging signals are acquired. The acquired sets of lines have readout gradients that are reversed in polarity with respect to one another. A two-dimensional phase error is determined using the first and second set of lines. | 2010-09-30 |
20100244823 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD - A magnetic resonance imaging apparatus comprising static magnetic field generating means for generating a static magnetic field in an imaging space, measuring means for generating a high-frequency magnetic field and a gradient magnetic field in the imaging space and measuring a nuclear magnetic resonance signal generated from an object to be examined placed in the imaging space, signal processing means for reconstructing a magnetic resonance image according to the nuclear magnetic resonance signal, control means for controlling the measuring means and the signal processing means, and display means for displaying the reconstructed magnetic resonance image obtained by the signal processing means. | 2010-09-30 |
20100244824 | APPARATUS FOR SUPPORTING AND METHOD FOR FORMING A SUPPORT FOR A MAGNETIC RESONANCE IMAGING (MRI) MAGNET - An apparatus and method for supporting a magnetic resonance imaging magnet are provided. The apparatus includes a magnet coil support structure having a main former body with a plurality of channels and an end flange at each end of the main former body. The end flanges are reinforced with a strengthening material at least at corner regions of the end flanges. | 2010-09-30 |
20100244825 | System And Method Of Parallel Imaging With Calibration To A Virtual Coil - A method for generating a magnetic resonance (MR) image includes acquiring calibration data from each of a plurality of RF source coils. Calibration data for a virtual coil is generated based on the calibration data from the plurality of RF source coils and a set of synthesis weights is generated based on the calibration data from the plurality of RF source coils and the calibration data for the virtual coil. Accelerated MR data is acquired from each of the plurality of RF source coils. An image can be reconstructed based on an application of the set of synthesis weights to the accelerated MR data from the plurality of RF source coils. | 2010-09-30 |
20100244826 | Device for monitoring a living object during a magnetic resonance experiment - A device for monitoring a living object during a magnetic resonance (MRI) experiment in an MRI tomograph, wherein the device comprises one or more individual electrodes which are connected in an electrically conducting fashion to the living object to be examined, and are connected to a monitoring device via signal lines, wherein each signal line comprises individual parts that are electrically connected to each other via impedances. The eigenfrequencies of these parts are higher than the NMR measuring frequency, preferably more than twice as high, and the parts are electrically connected to each other via frequency-dependent impedances Z | 2010-09-30 |
20100244827 | Simultaneous excitation and acquisition in magnetic resonance - A method for magnetic resonance spectroscopy (=MRS) or magnetic resonance imaging (=MRI) in which an NMR time-domain signal is created by an RF excitation pulse applied to an object in the presence of an applied magnetic field that may depend on spatial position and/or time, the time-domain signal being generated by an excited transverse nuclear magnetisation precessing about the applied magnetic field, whereby the RF excitation pulse is adapted to cover a whole range of NMR frequencies of interest present in the object, and time-domain signal acquisition takes place during, or during and after the application of the RF excitation pulse, is characterized in that spectral or image data are reconstructed by a matrix product of a reconstruction matrix and a vector of time-domain signal points, the reconstruction matrix being an inversion of an encoding matrix A | 2010-09-30 |
20100244828 | ADJUSTABLE PERMANENT MAGNET ASSEMBLY FOR NMR AND MRI - System and methods for designing and using single-sided magnet assemblies for magnetic resonance imaging (MRI) are disclosed. The single-sided magnet assemblies can include an array of permanent magnets disposed at selected positions. At least one of the permanent magnets can be configured to rotate about an axis of rotation in the range of at least +/−10 degrees and can include a magnetization having a vector component perpendicular to the axis of rotation. The single-sided magnet assemblies can further include a magnet frame that is configured to hold the permanent magnets in place while allowing the at least one of the permanent magnets to rotate about the axis of rotation. | 2010-09-30 |
20100244829 | MAGNETIC RESONANCE PROJECTION ANGIOGRAPHY WITH CONTINUOUS TABLE DISPLACEMENT - In a method and apparatus for contiguous large imaging in magnetic resonance tomography given continuous table displacement and per-segment, para-sagittal and/or para-coronal FOV relative to the table displacement direction, a sagittal and/or coronal magnetic resonance tomography overview image is/are acquired with table displacement direction in the longitudinal direction of the body and planning FOV by circumscribing the anatomical region of interest depicted in the respective overview image, for example a vessel tree. The arrangement of 2D or 3D RF excitation volumes to be radiated is planned such that the planning FOV is completely overlapped sagitally and/or coronally by the entirety of the RF excitation volume. A segment-by-segment magnetic resonance tomographical measurement of the entire 2D or 3D region defined by the RF excitation volume ensues on the basis of temporally following, slice-selective radio-frequency excitation pulses during continuous table displacement. At least two of the 2D or 3D RF excitation volumes are shifted para-sagitally and/or para-coronally against one another, with the focal point of an RF excitation volume being on the center line of the planning FOV. | 2010-09-30 |
20100244830 | MAGNETIC RESONANCE METHOD AND DEVICE TO DIFFERENTIATE AMONG PIXELS REPRESENTING A SILICON-DOMINATED SUBSTANCE, WATER-DOMINATED TISSUE AND FAT-DOMINATED TISSUE - In a magnetic resonance method and device for automatic differentiation of respective pixels as representing either a silicon-dominated substance, or fat-dominated tissue, or water-dominated tissue, a first magnetic resonance signal and a second magnetic resonance signal are acquired per pixel, wherein the first magnetic resonance signal per pixel is acquired at a point in time at which the phase of a magnetic resonance signal originating from water-containing tissue exhibits a phase opposite to the phase of a magnetic resonance signal originating from fat-containing tissue, and the second magnetic resonance signal is acquired per pixel at a point in time at which the phase of the magnetic resonance signal originating from water-containing tissue exhibits a phase identical to the phase of the magnetic resonance signal originating from fat-containing tissue, and the phase of a magnetic resonance signal originating from a silicon-containing substance exhibits a phase opposite to the phase of the magnetic resonance signal originating from water-containing or fat-containing tissue. A first intermediate result is determined that indicates whether the pixel represents water-dominated tissue or fat-dominated tissue on the basis of first magnetic resonance signals. A second intermediate result is determined that indicates whether the pixel represents the silicon-dominated substance on the basis of second magnetic resonance signals. The pixel is designated as representing water-dominated tissue, fat-dominated tissue or the silicon-dominated substance on the basis of the first intermediate result and the second intermediate result. | 2010-09-30 |
20100244831 | DYNAMIC MAGNETIC RESONANCE IMAGING (MRI) WITH ADAPTIVE IMAGE QUALITY - A resonance imaging (MRI) apparatus ( | 2010-09-30 |
20100244832 | MAGNETIC RESONANCE APPARATUS AND METHOD FOR IMPLEMENTING A NEUROLOGICAL SEQUENCE PROTOCOL - In a method and apparatus to generate MR images of an examination region containing tissue with a first T2 time and tissue with a second, significantly longer T2 time are contained, as series of pulse sequences is employed the following pulse sequences: an overview pulse sequence to generate MR overview images, a T1-weighted pulse sequence to generate T1-weighted MR images and a multiple contrast pulse sequence in which at least two groups of magnetic resonance signals are acquired. A first group of magnetic resonance signals is acquired after excitation of a magnetization in a first time period and at least one second group of magnetic resonance signals is acquired in a second time period after the first time period in which the tissue with the significantly longer T2 time delivers the significant signal contribution. An MR image is calculated based on a pixel-by-pixel difference of the absolute values from the magnetic resonance signals of the first group and the second group. | 2010-09-30 |
20100244833 | MAGNETIC RESONANCE IMAGING APPARATUS - In an MRI apparatus, a detecting unit that includes a thermographic imaging equipment and a normal imaging camera detects a change in temperature of an imaging space from outside of the imaging space. A judging unit judges whether the imaging space has a point at a temperature greater than a threshold TH, and if the judging unit judges the imaging space has such a point with a temperature greater than the threshold, the apparatus stops the sequence that applies a gradient magnetic field to the subject. | 2010-09-30 |
20100244834 | AUTOMATED FIBER TRACKING OF HUMAN BRAIN WHITE MATTER USING DIFFUSION TENSOR IMAGING - A magnetic resonance imaging (MRI) system, comprising: a MRI scanner; a signal processing system in communication with the magnetic resonance imaging scanner to receive magnetic resonance (MR) signals for forming magnetic resonance images of a subject under observations; a data storage unit in communication with the signal processing system, wherein the data storage unit contains database data corresponding to a soft tissue region of the subject under observation. The database data includes information identifying at least one soft tissue substructure encompassed by the soft tissue region of the subject under observation. The signal processing system is adapted to process MR signals received from the MRI scanner to automatically identify at least one soft tissue substructure encompassed by the soft tissue region of the subject under observation. | 2010-09-30 |
20100244835 | THIN EXTENDED-CAVITY RF COIL FOR MRI - Systems and methods for reducing an amount of space occupied by a radio frequency coil assembly in a magnetic resonance imaging system are provided. In one embodiment, a radio frequency coil assembly for a magnetic resonance imaging system includes a radio frequency coil disposed cylindrically around a patient space and a radio frequency shield disposed cylindrically around the patient space and electrically coupled to the axial ends of the radio frequency coil. The radio frequency shield may be configured to extend behind the radio frequency coil, and the axial length of the radio frequency shield may be at least two times the axial length of the radio frequency coil. | 2010-09-30 |
20100244836 | INTERLEAVED GRADIENT COIL FOR MAGNETIC RESONANCE IMAGING - Gradient coils for generating gradient magnetic fields in a magnetic resonance imaging system are provided. In one embodiment, a gradient coil for a magnetic resonance imaging system may include a plurality of turns formed generally in a figure-eight. The figure-eight may form a first section configured to overly a section of a first adjacent coil, a second section configured to underly another section of the first adjacent coil, a third section configured to overly a section of a second adjacent coil, and a fourth section configured to underly another section of the second adjacent coil. | 2010-09-30 |
20100244837 | LIQUID DIELECTRIC GRADIENT COIL SYSTEM AND METHOD - Magnetic resonance imaging systems having gradient coil assemblies employing a liquid dielectric medium are provided. In one embodiment, a magnetic resonance imaging system includes a gradient coil assembly with a plurality of gradient coils. In the gradient coil assembly, at least two of the gradient coils are electrically separated from one another by a fluid medium. | 2010-09-30 |
20100244838 | RF coil assembly for MRI using differently shaped and/or sized coils - A radio frequency coil assembly is provided that includes a first radio frequency coil for receiving a magnetic resonance signal from a tested body; a second radio frequency coil for receiving a magnetic resonance signal from the tested body; and a third radio frequency coil for receiving a magnetic resonance signal from the tested body and having a shape that is different from that of at least one of the first and second radio frequency coils so as to increase local sensitivity in an image-picked-up region. | 2010-09-30 |
20100244839 | POWER TRANSMITTING APPARATUS - A power transmitting apparatus includes: a first magnetic resonance coil that externally transmits power as energy through magnetic resonance; a first power transmitting-and-receiving unit that supplies power to at least the first magnetic resonance coil; a second magnetic resonance coil that accepts the magnetic field energy through magnetic resonance occurring between the first magnetic resonance coil and the second magnetic resonance coil; a second power transmitting-and-receiving unit that accepts the power at least with reference to the second magnetic resonance coil; a main power supply; and a power supply-management unit configured to select either the power accepted by the second power transmitting-and-receiving unit or power transmitted from the main power supply, and transmit the selected power to the first power transmitting-and-receiving unit and/or transmit the power accepted by the second power transmitting-and-receiving unit and the power transmitted from the main power supply to the first power transmitting-and-receiving unit in combination. | 2010-09-30 |
20100244840 | USING S-PARAMETER MEASUREMENTS TO MANAGE SAR AND TRANSMIT GAIN - Systems and methods for controlling a magnetic resonance imaging system are provided. In one embodiment, a magnetic resonance imaging system includes a radio frequency coil with a plurality of conductive coil elements, control circuitry that determines, based at least in part on a measurement of scattering parameters, a plurality of forward voltages that will cause power deposition into an object within a predetermined specific absorption rate, and an amplifier configured to apply the determined plurality of forward voltages respectively to the plurality of coil elements. The control circuitry may determine the plurality of forward voltages based at least in part on an unloaded measurement of scattering parameters and a loaded measurement of scattering parameters. | 2010-09-30 |
20100244841 | NON-PLANAR ANTENNAE FOR DIRECTIONAL RESISTIVITY LOGGING - A downhole measurement tool includes at least one non-planar antenna configured for transmitting and/or receiving electromagnetic radiation. The non-planar antenna includes at least one non-planar loop of antenna wire deployed about a tool body. In one exemplary embodiment, the non-planar antenna may be thought of as being bi-planar in that it includes first and second sections defining first and second intercepting geometric planes. In another exemplary embodiment, the axial separation between the non-planar loop of antenna wire and a circular centerline of the antenna varies substantially sinusoidally with respect to an azimuth angle about the circumference of the tool. Exemplary non-planar antennae in accordance with the invention may be advantageously configured to transceive substantially pure x-, y-, and z-mode radiation. | 2010-09-30 |
20100244842 | APPARATUS AND METHOD FOR REMOVING ANISOTROPY EFFECT FROM DIRECTIONAL RESISTIVITY MEASUREMENTS - A directional resistivity tool includes at least one receiver deployed axially asymmetrically between at least one pair of transmitters. The transmitters are configured to transmit electromagnetic waves at first and second correspondingly distinct frequencies f | 2010-09-30 |
20100244843 | Geophysical prospecting using rotationally invariant parameters of natural electromagnetic fields - A geophysical survey method and system that comprises: measuring along multiple axes at multiple locations within a survey area magnetic field components of a low frequency magnetic field resulting from naturally occurring electromagnetic sources using a first sensor system; measuring along multiple axes magnetic field components of a low frequency magnetic field resulting from naturally occurring electromagnetic sources using a second sensor system; and receiving information about the magnetic field components measured by the first sensor system and the second sensor system and in dependence thereon computing parameters from the received information that are independent of rotation of the first sensor system or the second sensor system about any axis thereof. | 2010-09-30 |
20100244844 | DEVICE AND METHOD FOR DETECTING A STREET LAMP FAULT - A device for detecting a fault of at least one street lamp of a plurality of street lamps which are connectable in common to an AC power supply is proposed. The proposed device allows detecting whether a fault has occurred based on obtaining measures representative of the total active and reactive power supplied by the AC power supply to the plurality of street lamps, and detecting variations in these measures. Optionally, also the type of fault can be determined based on detected variations in the power measures. | 2010-09-30 |
20100244845 | CURRENT INTEGRATING CIRCUIT DEVICE AND SECONDARY BATTERY PACKAGE USING THE SAME - A current integrating circuit device, including a current sensor to detect a current flowing through a current path, a first-order lag filter to filter an output of the current sensor, an A/D converter to convert an analog signal filtered by the first-order lag filter into a digital signal, and a proportional integrator to proportionally integrate the digital signal outputted from the A/D converter. | 2010-09-30 |
20100244846 | METHOD FOR DETERMINING THE STATE OF HEALTH OF A BATTERY - A method for determining the state of health (SOH) of a battery is provided in which cell impedance is determined continuously, and including determining one or more confidence coefficients that depend on one or several variables selected from cell current, temperature or state of charge or their derivatives or integrals with respect to time, and continuously determining the state of health of the battery at a given point in time, using the state of health of the battery at a preceding point in time corrected as a function of cell impedance determined at the given point in time and weighted by the confidence coefficient or coefficients. The method provides a reliable way of determining the state of health of the battery with greater stability and robustness than existing methods. | 2010-09-30 |
20100244847 | Battery Monitoring System - A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally. | 2010-09-30 |
20100244848 | SYSTEM FOR TESTING CONNECTIONS BETWEEN CHIPS - In accordance with an aspect of the application, there is provided a system for testing, including a first chip, a second chip, and first and second connections. The first connection is configured to couple a first pin of the first chip to a first pin of the second chip, and to transmit an initial signal from the first chip to the second chip. The second connection is configured to couple a second pin of the first chip to a second pin of the second chip to return the signal as a returned signal to the first chip. The first chip comprises comparison circuitry configured to compare the returned signal with the initial signal | 2010-09-30 |