| 52nd week of 2012 patent applcation highlights part 21 |
| Patent application number | Title | Published |
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| 20120326612 | INTELLIGENT LED - The invention relates to a light for illuminating a useable area, in particular a merchandise display area, comprising an adaptive illumination unit which has a number of coloured light-emitting diodes which emit light in the basic colours of a colour system, a sensor system directed towards the useable area which detects a light spectrum reflected by the useable area and/or objects lying on the useable area, and a control unit which is coupled to the sensor system and is designed to determine at least one dominant colour from the reflected light spectrum detected by the sensor system, and to actuate the light-emitting diodes to emphasise the at least one dominant colour such that they emit a light spectrum of a pre-specified colour temperature and/or intensity, in which the portion of the at least one dominant colour is increased. | 2012-12-27 |
| 20120326613 | LIGHT EMITTING DEVICE ARRAY DRIVER CIRCUIT AND CURRENT SPLITTER CIRCUIT AND METHOD OF SPLITTING CURRENT THEREFOR - The present invention discloses a current splitter circuit for splitting a supply current to multiple light emitting device strings of a light emitting device array. The current splitter circuit includes: a minimum selector circuit coupled to the multiple light emitting device strings to generate a minimum signal which indicates a minimum voltage of the light emitting device strings; and multiple current source circuits each including a first current source end coupled to a corresponding light emitting device string, a second current source end coupled to ground, and a current source control end receiving a current control signal related to the minimum signal, so as to control currents through the corresponding light emitting device string. | 2012-12-27 |
| 20120326614 | LUMINAIRE - According to one embodiment, a luminaire includes a dim lighting circuit, an emergency unit, a dimming-signal input section, and a dimming control circuit. The dim lighting circuit dimly lights a light source at a dimming ratio corresponding to a dimming signal. The emergency unit includes a charging circuit for charging a battery with an external power supply in a normal time and supplies a power supply of the battery to the dim lighting circuit in an emergency. The dimming-signal input section receives the input of the dimming signal from the outside. The dimming control circuit gives the dimming signal input from the dimming-signal input section to the dim lighting circuit in a normal time and gives a dimming signal having a dimming ratio for an emergency to the dim lighting circuit in an emergency. | 2012-12-27 |
| 20120326615 | CURRENT CONTROL CIRCUIT AND ASSOCIATED METHOD - A current control circuit and associated method are disclosed hereby. The current control circuit has a fly-wheel circuit, comprising an inductor, a rectifier and a load; a current sense circuit, detecting a load current, configured to generate a first current signal; a compensating circuit, generating a compensating signal; a control circuit, generating a control signal according to the first current signal and the compensating signal; a first switch, coupled to the fly-wheel circuit, turned ON and OFF according to the control signal. By the effect of the compensating signal, the drift error of the average load current is prohibited. | 2012-12-27 |
| 20120326616 | LIGHT EMITTER DRIVING DEVICE AND LIGHTING APPLIANCE THEREWITH - A light emitter driving device has a decoder portion which monitors a rectified voltage and generates a dimming signal, and a drive current control portion which controls a drive current to a light emitter according to the dimming signal. The decoder portion has a comparator which compares the rectified voltage with a predetermined threshold voltage to generate a comparison signal, a sampling counter which measures high-level and low-level periods of the comparison signal, a duty calculation portion which calculates the duty of the rectified voltage based on the output of the sampling counter, a filter calculation portion which excludes sporadic variation in duty by applying digital filtering to the output of the duty calculation portion, and a dimming signal generation portion which generates the dimming signal based on the output of the filter calculation portion. | 2012-12-27 |
| 20120326617 | ILLUMINATION APPARATUS - An illumination apparatus, for outputting a light of mixed colors in a desired color temperature by controlling light outputs from light sources, includes: a light output setting unit for outputting a set signal presenting a set value for adjusting an output of the light of mixed colors; a first filter for smoothing the set signal from the light output setting unit; a light output adjustment unit for adjusting the light outputs from the respective light sources based on the set signal smoothed by the first filter; and a plurality of second filters smoothing signals outputted from the light output adjustment unit to the light sources, respectively. Each of time constants of the second filters is lower than that of the first filter. | 2012-12-27 |
| 20120326618 | HARMONIC RIPPLE-CURRENT LIGHT EMITTING DIODE (LED) DRIVER CIRCUITRY AND METHOD - In accordance with the presently claimed invention, circuitry and a method are provided for using a voltage to drive a light emitting diode (LED) load including one or more LEDs. The incoming voltage is switched and inductively conditioned to drive the LED load in such a manner as to cause the LED load to appear as a substantially linear resistive load, thereby maximizing the power factor presented to an AC power grid serving as the source of the input voltage. | 2012-12-27 |
| 20120326619 | POWER MANAGEMENT CIRCUIT AND LIQUID CRYSTAL DISPLAY USING SAME - A power management circuit comprising a power-on signal input, an output terminal a control unit, a switching unit, and a discharge unit. The control unit configured to selectively turn on the switching unit to output a power-on signal to a display module and selectively turn off the switching unit to cut off an electrical connection between the power-on signal input and the output terminal. The discharge unit configured to discharge residual electrical charges in the display module when the switching unit is turned off. | 2012-12-27 |
| 20120326620 | Illuminating Device - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules. | 2012-12-27 |
| 20120326621 | Power Efficient Driving Circuits of Light Source for Projectors - A system for driving current to the light source may include a first inductor to supply current to the light source, a power source to supply current to the inductor, a first switch SET to supply current to the inductor without supplying the current to the light source and a second switch SET to supply the current from the inductor to the light source. Also a system for driving current to light source may include two inductors or a transformer, to supply current to the light source by connecting the first inductor to the light source by a switch set, while the second inductor may be connected to the voltage source by another switch set. And this role can be exchanged between the two inductor alternately and in sequence, defined by time periods. | 2012-12-27 |
| 20120326622 | COMPUTING DEVICE WITH COLOR ORGAN - A computing device includes an audio signal processing unit, a light module, and driving circuits. The audio signal processing unit decompresses digital audio data into an audio signal. The driving circuit drives the light module to light according to the audio signal, in such a manner that the intensity/brightness of the light module corresponds to amplitude of the audio signal in real-time. | 2012-12-27 |
| 20120326623 | SOCKET ADAPTOR HAVING AC-DC CONVERTOR FOR LED LAMP - A socket adaptor for an LED lamp includes an adaptor body and an AC-DC converter disposed in the adaptor body. The adaptor body includes a holder for receiving an LED lamp, the holder being configured according to industrial standards. The adaptor body also includes an external base for attaching the socket adaptor to a lamp holder, the external base being configured according to the industrial standards. | 2012-12-27 |
| 20120326624 | PHOTON SOURCE - A photon source comprising a photon source body, said photon source body comprising at least one quantum dot; carrier injection means for injecting carriers into said at least one quantum dot and change of state means for changing the state of the carriers within the quantum dot after a predetermined time duration, the carrier injection means injecting carriers which are configured to allow emission of radiation by radiative recombination | 2012-12-27 |
| 20120326625 | Electrical Switch, As For Controlling a Flashlight - An electrical switch and a flashlight employing the switch may comprise a base having three electrical conductors thereon and an electrically conductive flexible dome adjacent the base. The flexible dome has plural longer legs extending from its dome and in electrical contact with a first conductor, has a shorter leg extending from its dome and overlying a second conductor, and has its dome overlying a third conductor. A spring may extend from the base of the switch. A pushbutton may be moved to apply sufficient force to cause the shorter leg to contact the second conductor and the dome to contact the third conductor. A spring may be between the pushbutton and the flexible dome to couple force to the flexible dome. | 2012-12-27 |
| 20120326626 | LED CONTROL SYSTEM - An LED control system includes a platform controller unit, a peripheral interface control chip connecting with the platform controller unit, and an LED unit connecting with the peripheral interface control chip. The platform controller unit outputs control instructions to the peripheral interface control chip. The control instructions outputted by the platform controller unit is transformed via programming the peripheral interface control chip, so that the on/off state of the LED unit as well as brightness and color of light emitted from the LED unit can be controlled by pulse signals output from the output ports of the peripheral interface control chip. | 2012-12-27 |
| 20120326627 | SYSTEMS AND METHODS FOR CONTROLLING WHITE LIGHT - Systems and methods for controlling the emission of white light are generally described. In certain embodiments, the systems and method relate to controlling white light emitted from a plurality of light-emitting diodes. | 2012-12-27 |
| 20120326628 | POWER CONTROL DEVICE, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a power control device, which generates PWM signals corresponding to obtained voltage signals, and which performs PWM control of power to be supplied to a load. The power control device is provided with a sampling section that performs sampling of the voltage signals, and a duty factor updating section, which updates the duty factor of the PWM signals on the basis of the sampling results. The sampling section is prevented from performing sampling during a masking period which is set as the on-period or the off-period of the PWM signals. | 2012-12-27 |
| 20120326629 | SYSTEMS AND METHODS FOR INTELLIGENT CONTROL OF COLD-CATHODE FLUORESCENT LAMPS - System and method for driving one or more cold-cathode fluorescent lamps. For example, the method includes generating at least one drive signal associated with a signal frequency, the signal frequency being equal to a first predetermined frequency, receiving a current-sensing signal, the current-sensing signal being associated with a lamp current for the one or more cold-cathode fluorescent lamps in response to at least the first predetermined frequency, and determining whether the current-sensing signal is larger than a first threshold in magnitude, the current-sensing signal being related to the first predetermined frequency. Additionally, the method includes, if the current-sensing signal related to the first predetermined frequency is determined to be larger than the first threshold in magnitude at anytime during a first period of time, changing the signal frequency from the first predetermined frequency to a second predetermined frequency, the second predetermined frequency being different from the first predetermined frequency. | 2012-12-27 |
| 20120326630 | DRIVER CIRCUIT - A light-emitting diode (LED) driver circuit configured to generate a constant driving voltage irrespective of a variation in a load current. The LED driver circuit, which may generate an LED driving voltage, may include a booster configured to generate the LED driving voltage in response to a control signal, a voltage detector configured to divide an output voltage of the booster and output a detection voltage, and a booster controller configured to generate the control signal. The booster controller may select one of a pulse-width modulation signal and a fixed logic-level signal as the control signal in response to an LED current signal and the detection voltage and output a selected signal. | 2012-12-27 |
| 20120326631 | LIGHTING DEVICE AND ILLUMINATION APPARATUS INCLUDING SAME - A lighting device includes lighting control units respectively provided for controlling lighting of solid state light emitting element groups irradiating light of different chromaticities and a color ratio setting unit for setting a target output ratio of the solid state light emitting element groups. In an xy chromaticity diagram of an XYZ color system, a straight line connecting chromaticity coordinates of lights irradiated by a first and a second solid state light emitting element group intersects a black body locus. Further, the lighting control units include a first and a second lighting control unit for controlling lighting of the first and the second solid state light emitting element group, and the first and the second control unit perform a feedback control such that an output ratio of the second to the first solid state light emitting element group becomes equal to the target output ratio thereof. | 2012-12-27 |
| 20120326632 | SEMICONDUCTOR LIGHT SOURCE LIGHTING CIRCUIT - A lighting circuit for lighting a semiconductor light source includes: a DC/DC converter configured to receive a DC first voltage and a DC second voltage and generate a DC third voltage; a first connector including a first terminal, wherein the third voltage is applied to the first terminal, wherein the first connector connects the first terminal and one end of the semiconductor light source; and a control circuit that controls the DC/DC converter. The control circuit selects only the first voltage as a voltage applied to the other end of the semiconductor light source, when a voltage for emitting the semiconductor light source is less than an absolute value of a difference between the first and second voltages. The control circuit selects the first voltage or the second voltage as the voltage applied to the other end thereof, when the voltage is not less than the absolute value. | 2012-12-27 |
| 20120326633 | DETECTOR CIRCUIT AND METHOD FOR OPERATING A DETECTOR CIRCUIT - The invention relates to a detector circuit comprising a connection for a voltage supply (Vbat) and a connection for connecting a lamp (LED), said connection being connected to the connection for a voltage supply (Vbat) and to a first control component (I | 2012-12-27 |
| 20120326634 | INTEGRALLY FORMED LIGHT EMITTING DIODE LIGHT WIRE AND USES THEREOF - Integrally formed LED light wires are provided, comprising a conductive base comprising a support substrate, wherein the support substrate comprises a first plurality of wires, threads, or a combination thereof, wherein the plurality of wires, threads, or a combination thereof comprises at least one weft element arranged in a first direction and at least two warp elements, each arranged in a second direction such that the at least one weft element and each of the at least two warp elements form plural intersections therebetween, a first bus element and a second bus element, each adapted to distribute power from a power source, a third bus element adapted to distribute a control signal, wherein the first, second, and third bus elements are woven, stitched, or knitted into the support substrate; and a plurality of light emitting diode (LED) modules, each LED module comprising a microcontroller and at least one LED. | 2012-12-27 |
| 20120326635 | Method of Using Light Striping for Fire Rescue Navigation - The present invention provides a method of using a laser lighting apparatus for fire rescue navigation in a smoke-filled structure. The laser lighting apparatus is portably carried at a user's body and directly operated by the user to perform the steps of turning the laser lighting apparatus on to output one or more coherent light planes; projecting the one or more coherent light planes on objects in the smoke-filled structure to produce one or more light stripes on surfaces of the objects; and identifying the objects in the smoke-filled structure from the one or more light stripes. | 2012-12-27 |
| 20120326636 | Accelerator system stabilization for charged particle acceleration and radiation beam generation - A method for generating stabilized particle acceleration by a radio-frequency (RF) accelerator is described, comprising operating the accelerator in a warm-up mode during a warm-up time period, without injecting charged particles or without accelerating injected charged particles, and operating the accelerator in a beam-on mode during a beam-on time period after the warm-up time period, to accelerate charged particles injected by the charged particle source. Automatic frequency control to match an expected frequency of the accelerator during the beam-on time period, prior to the start of the beam-on time period, for stability, is also described. | 2012-12-27 |
| 20120326637 | MULTIFUNCTIONAL ELECTRIC TOOL - A multifunctional electric tool has a housing, a motor arranged in the housing, a transmission device driven by the motor, a speed controlling device. At least two output shafts which have different dimensions are to be used with the tool wherein the output shaft is used to control the activation of the speed controlling device. The rotational speed of the electric tool may thus be automatically adjusted to match with the rotational speed of the accessory installed on the output shaft. | 2012-12-27 |
| 20120326638 | METHOD FOR CONTROLLING AN INVERTER FOR DRIVING A SWING MOTOR - The present disclosure relates to a method of controlling an inverter for driving a swing motor, and particularly, maximally generates braking torque of the swing motor upon generation of failure of the inverter by switching on/off a lower-phase switch or an upper-phase switch of the inverter in order to prevent an upper swing body from freely rotating which is generated when a semiconductor switch of the inverter is switched off upon the generation of over-current and over-voltage of the inverter that drives the swing motor, thereby being capable of protecting the inverter, rapidly stopping the upper swing body, and preventing the risk of accidents. | 2012-12-27 |
| 20120326639 | Sensorless Optimum Torque Control For High Efficiency Ironless Permanent Magnet Machine - Embodiments of the present invention permit the optimization of torque control of a permanent magnet machine including obtaining instantaneous terminal voltages of the machine, transforming the instantaneous terminal voltages to a zero direct axis voltage and a non-zero quadrature axis voltage, using a mathematical transformation, regulating the electrical frequency of the permanent-magnet machine such that the zero direct-axis voltage is adjusted to have a value of zero, determining a non-final electrical angle of the permanent-magnet machine by applying an integrator to the regulated electrical frequency of the machine, determining a final electrical angle of the of the machine by integrating the non-final electrical angle and an electrical angle from a previous calculation cycle, and regulating the current vector of the machine such that the current vector is perpendicular to the final electrical angle of the machine, thereby optimizing the torque of the machine. | 2012-12-27 |
| 20120326640 | ADAPTIVE FLUX CONTROL DRIVE - This disclosure relates to a variable speed drive for driving a motor having a starting circuit. The variable speed drive adaptively generates motor voltages to reduce the likelihood of starting circuit intrusions. | 2012-12-27 |
| 20120326641 | MOTOR DRIVE APPARATUS EQUIPPED WITH ENERGY STORAGE UNIT - A motor drive apparatus includes an AC/DC converter which converts AC power supplied from a power supply to DC power, a DC/AC converter which converts DC power to AC power and vice versa, a DC link unit which connects the DC side of the AC/DC converter to the DC side of the DC/AC converter and delivers the DC power from one to the other and vice versa, an energy storage unit which includes at least one capacitor storage unit and at least one flywheel storage unit each of which is connected to the DC link unit and stores or supplies the DC power, and an energy control unit which performs control so that the energy storage unit stores or supplies the DC power. | 2012-12-27 |
| 20120326642 | SENSORLESS CONTROL UNIT FOR BRUSHLESS DC MOTOR - A command rotation speed is set to an initial rotation speed, and a forced commutation mode is started. In the forced commutation mode, a rotation speed is increased by a predetermined increase amount each time and forced commutation is executed until the rotation speed reaches a set rotation speed. Then, a switchover to the sensorless control mode is made when the rotation speed reaches the set rotation speed (S | 2012-12-27 |
| 20120326643 | Position Corrected Pulse Width Modulation for Brushless Direct Current Motors - A method of operating a brushless direct current motor is provided that generates a rotor position dependent pulse width modulation waveform. The waveform can improve motor efficiency and reduce torque variation. | 2012-12-27 |
| 20120326644 | MOTOR CONTROL DEVICE - When one of six FETs has short-circuit faulted, a controllable region identification unit stops driving of an electric motor, and then performs processes for determining whether a short-circuit fault has occurred, and when a short-circuit fault has occurred, for identifying the position of the FET that has short-circuit faulted based on phase voltages (induced voltages) V | 2012-12-27 |
| 20120326645 | METHODS AND SYSTEMS FOR RECORDING OPERATING INFORMATION OF AN ELECTRIC MOTOR - A unit for recording operating information of an electronically commutated motor (ECM) is described. The unit includes a system controller communicatively coupled to an ECM. The system controller includes a processing device configured to control the unit. The unit also includes a memory device communicatively coupled to the system controller. The memory device is configured to receive and store ECM operating information provided by the processing device. | 2012-12-27 |
| 20120326646 | POWER SEMICONDUCTOR MODULE, POWER CONVERTING APPARATUS, AND RAILWAY CAR - A power semiconductor module includes an element pair formed by connecting, in anti-parallel to each other, an IGBT and an FWD group in which an FWD, a voltage drop characteristic of which during conduction has a negative temperature coefficient, and an FED, a voltage drop characteristic of which during conduction has a positive temperature coefficient, are connected in series and an element pair formed by connecting, in anti-parallel to each other, an IGBT and an FWD group in which a FWD, a voltage drop characteristic of which during conduction has a negative temperature coefficient, and an FWD, a voltage drop characteristic of which during conduction has a positive temperature coefficient, are connected in series. The element pairs are connected in parallel. | 2012-12-27 |
| 20120326647 | ZERO-CROSSING DETECTION CIRCUIT AND COMMUTATION DEVICE USING THE ZERO-CROSSING DETECTION CIRCUIT - A zero-crossing detection circuit and a commutation device using the zero-crossing detection circuit are provided. The zero-crossing detection circuit is adapted into a three-phase brushless DC (direct current) motor with first to third coils. One terminal of each of the first to third coils is electrically coupled together with each other. The detection circuit comprises a first selection circuit, a second selection circuit and a comparator. The first selection circuit and the second selection circuit are both electrically coupled to another terminals of the first to third coils, to obtain first to third terminal voltages, and output one of the first to third terminal voltages according to a selection signal. The comparator is configured for comparing an output of the first selection circuit and an output of the second selection circuit, to output a comparing result. | 2012-12-27 |
| 20120326648 | FAN DELAY CONTROL CIRCUIT - A fan delay control circuit includes a fan connector connected to a fan of an electronic device, a power supplying module connected to the fan connector, and a rotational speed controlling module connected to the power supplying module. The power supplying module is connected to a fan power source and a stand-by power source. The power supplying module may continue to supply power to the fan when the electronic device including the fan is powered off. The rotational speed controlling module includes a square wave generation circuit which generates a square wave signal to control a rotational speed of the fan even when the electronic device is powered off. | 2012-12-27 |
| 20120326649 | Systems and Methods for Operating a Solar Direct Pump - Systems and methods for operating a solar direct pump are provided. A system for controlling an alternating current (AC) pump includes a photovoltaic module, a temperature sensor that measures a temperature of the photovoltaic module, a calculator that calculates a maximum power point (MPP) voltage of the photovoltaic module based on the temperature of the photovoltaic module, and a frequency controller that adjusts a reference frequency of power supplied to the pump based on the MPP voltage. | 2012-12-27 |
| 20120326650 | ROTATING ELECTRICAL MACHINE CONTROL APPARATUS - A rotating electrical machine control apparatus includes a plurality of rotating electrical machine controllers and a target voltage setting device. Each of the rotating electrical machine controllers includes a rotating electrical machine and a power supply controller configured to perform power supply control on the rotating electrical machine. The rotating electrical machine controllers have different imposed loads. The target voltage setting device is configured to set DC-side voltages of the rotating electrical machine controllers to a target voltage defined as a thermal equilibrium voltage which represents the DC-side voltages obtained when the rotating electrical machine controllers are in a thermal equilibrium condition. | 2012-12-27 |
| 20120326651 | Predictive Pulse Width Modulation For An Open Delta H-Bridge Driven High Efficiency Ironless Permanent Magnet Machine - Embodiments of the present method and system permit an effective method for determining the optimum selection of pulse width modulation polarity and type including determining machine parameters, inputting the machine parameters into a predicted duty cycle module, determining the optimum polarity of the pulse width modulation for a predicted duty cycle based on a pulse width modulation generation algorithm, and determining the optimum type of the pulse width modulation for a predicted duty cycle based on the pulse width modulation generation algorithm. | 2012-12-27 |
| 20120326652 | HIGH POWER-DENSITY, HIGH EFFICIENCY, NON-PERMANENT MAGNET ELECTRIC MACHINE - A system and method of manufacturing an electric machine comprising a rotor and a stator, wherein the stator comprises a fractional-slot concentrated winding having two sets of terminals, wherein a first set of terminals configures the fractional-slot concentrated winding to have a first pole-number (P | 2012-12-27 |
| 20120326653 | Convergent Energized IT Apparatus for Residential Use - A residential box data center system includes an information technology (IT) load, a direct current (DC) power generator electrically connected to the IT load and a housing, where both the IT load and the DC power generator are located in the housing. | 2012-12-27 |
| 20120326654 | STORAGE BATTERY - A storage battery has at least battery banks, switching units, a charging terminal, a discharging terminal and a battery management unit. The battery banks form a bank structure. Each switching unit electrically connects a group of the battery banks with either the charging terminal or the discharging terminal, and disconnects the group of the battery banks from the charging terminal or the discharging terminal. The battery management unit instructs the switching units to electrically and simultaneously connect one or more battery banks to the charging terminal during charging, and to electrically and simultaneously connect one or more battery banks to the discharging terminal during discharging. | 2012-12-27 |
| 20120326655 | CHARGING APPARATUS FOR ELECTRIC STORAGE DEVICE, VEHICLE EQUIPPED WITH THE CHARGING APPARATUS, AND METHOD OF CONTROLLING THE CHARGING APPARATUS - A charging apparatus includes an electric power supply device and a control device. The control device that estimates a first region in which first charging power is supplied from the electric power supply device to a electric storage device; estimates a second region, in which second charging power that is smaller than the first charging power is supplied from the electric power supply device to the electric storage device, based on temperature of the electric storage device and a state-of-charge of the electric storage; estimates a first charging time that corresponds to the first region; estimates a second charging time that corresponds to the second region; estimates a total charging time by using the first charging time and the second charging time; obtains a charging completion time; and sets a charging start time based on the charging completion time and the total charging time. | 2012-12-27 |
| 20120326656 | CHARGER FOR ELECTRONIC DEVICE, ELECTRONIC DEVICE, AND CHARGING METHOD - A charger for an electronic device that charges a rechargeable battery of the electronic device. The charger includes a detection unit, which detects connection of another electronic device to the electronic device through a communication cable including a power supply line. A charging unit charges the rechargeable battery with power supply voltage from the power supply line. A measurement unit acquires a measurement value indicating a degree of a voltage drop of the power supply voltage occurred when the charging unit performs charging. A control unit instructs a charging current value for charging the rechargeable battery with the charging unit. When the detection unit detects connection of the other electronic device, the control unit monitors the measurement value while instructing the charging unit to increase the charging current value from an initial current value and determines the charging current value based on the monitored measurement value. | 2012-12-27 |
| 20120326657 | BI-PHASE COMMUNICATION DEMODULATION TECHNIQUES - One aspect of the present invention includes a bi-phase communication receiver system. The system includes an analog-to-digital converter (ADC) configured to sample a bi-phase modulation signal to generate digital samples of the bi-phase modulation signal. The system also includes a bi-phase signal decoder configured to decode the bi-phase modulation signal based on the digital samples. The system further includes a preamble detector comprising a digital filter configured to evaluate the digital samples to generate an output and to detect a preamble of the bi-phase modulation signal for decoding the bi-phase modulation signal based on the output. | 2012-12-27 |
| 20120326658 | CALIBRATION AND ASSIGNMENT PROCESSES IN WIRELESS POWER TRANSFER SYSTEMS - Systems and methods pertaining to wireless power transfer are disclosed. Specifically, disclosed herein are calibration procedures that incorporate transmission of a reference power charge from a wireless power charger to permit determination of an optimized receiver circuitry configuration in one or more wirelessly chargeable devices. The result of the calibration procedures may then be used by the wireless charger to assign various frequencies to several wirelessly chargeable devices so as to optimally transfer a steady state power charge at one or more frequencies to the wirelessly chargeable devices. | 2012-12-27 |
| 20120326659 | WIRELESS BATTERY CHARGER OF MOVING COIL TYPE - The present invention discloses a wireless battery charger of moving coil type that moves a table ( | 2012-12-27 |
| 20120326660 | Wireless Power Transmission - A system for wireless power transmission may include one or more charging panels and one or more powered devices. The charging panel may include a pilot analysis circuitry, processor and power transmitter. The pilot analysis circuitry may be configured to analyze the magnitude and phase of a pilot signal from the powered device, based on which the processor may be configured to determine a complex conjugate of the pilot signal. And the power transmitter may be configured to cause radiation of a focused wireless power beam to the powered device in accordance with the complex conjugate of the pilot signal and via one or more antenna elements. The charging panel may be one of a plurality of spatially-distributed charging panels each of which includes respective antenna elements that may form an array of antenna elements configured to collaboratively radiate wireless power as a distributed, retro-reflective beamformer. | 2012-12-27 |
| 20120326661 | CONTACTLESS POWER RECEIVING DEVICE, AND CONTACTLESS CHARGING SYSTEM - A contactless power-receiving device, which is connected to equipment via a connection terminal and which supplies power to the load for the equipment, provided with: a secondary coil which intersects the alternating magnetic flux generated from a primary coil to which an alternating power is supplied; and a control unit which supplies induced electromotive force of the secondary coil to the load. The control unit determines the amount of charge in the load and determines whether or not to supply power to the load on the basis of the determined amount of charge. | 2012-12-27 |
| 20120326662 | NON-CONTACT POWER SUPPLY DEVICE, NON-CONTACT POWER RECEIVING DEVICE, AND NON-CONTACT POWER CHARGING SYSTEM - A contactless power transmitting device is provided with: a primary coil that can be magnetically coupled with a secondary coil of a contactless power receiving device; a first temperature sensor that detects the ambient temperature of the primary coil; a second temperature sensor that detects the temperature at a different location to the first temperature sensor; and a control unit. The control unit is configured to determine whether a value obtained by subtracting the temperature detected by the second temperature sensor from the ambient temperature of the first coil detected by the first temperature sensor exceeds a predetermined threshold value, and to stop the power to the first coil when the subtracted value exceeds the threshold value. | 2012-12-27 |
| 20120326663 | BATTERY CHARGING APPARATUS FOR ELECTRIC VEHICLE - A battery charging apparatus for an electric vehicle (EV) or a hybrid electric vehicle (HEV) includes a case chassis, a circuit board and at least one electronic component. The case chassis includes a plurality of side plates, a bottom plate and a receptacle. The circuit board is accommodated within the receptacle of the case chassis. The electronic component includes a passive component body with a plurality of conductive wires and a fixing member for accommodating the passive component body. The conductive wires are electrically connected to the circuit board. The fixing member is fixed on at least one of the side plates and the bottom plate of the case chassis. | 2012-12-27 |
| 20120326664 | CHARGING STAND FOR ELECTRIC AND HYBRID VEHICLES - A charging stand for an electric or hybrid vehicle includes a retractable cable. The retractable cable may further include a light and, in the preferred embodiments, the plug may include a button to automatically retract the cord utilizing a motor within the stand. | 2012-12-27 |
| 20120326665 | METHOD FOR QUICKLY SUPPLYING ELECTRIC ENERGY TO ELECTRIC VEHICLE AND POWER SUPPLY DEVICE THEREOF - A method of quickly supplying electric energy to electric vehicles and the power supply device thereof are provided. The method includes providing a rechargeable battery pack on an electric vehicle and providing a battery replacement device, a charging room and a battery storeroom in a power exchange station. The rechargeable battery pack includes a battery box and standardized standard battery units. The standard battery units are located in the battery box during operation, and are capable of being smoothly loaded into and unloaded from the battery box along the guiding rails. The rechargeable battery pack is pre-installed in the electric vehicle; and the drained standard battery units within the battery box are replaced with fully-charged standard battery units upon payment when the electric vehicle in need of electric power supply is driven into the power exchanging station. | 2012-12-27 |
| 20120326666 | CONFIGURATION OF A STATOR OF A ROTATING ELECTRIC MACHINE - Method of configuring a rotating electric machine ( | 2012-12-27 |
| 20120326667 | BATTERY CHARGING SYSTEM FOR VEHICLE AND BATTERY CHARGE CONTROLLER IN THE SAME - A battery charging system for a vehicle, capable of charging a vehicle battery pack properly in a short time even during driving a vehicle-mounted electrical load. The battery charging system includes the battery pack mounted in the vehicle, the vehicle-mounted electrical load that can be driven by a current from the battery pack, and a battery charge controller that controls charging of the battery pack. When the battery pack is charged by using an external battery charger during operation of the load, the battery charge controller requires the external battery charger to supply a sum current that is a sum of a current for charging the battery pack and a current for driving the load to the vehicle. | 2012-12-27 |
| 20120326668 | ELECTRICAL VEHICLE CHARGING USING FUEL CELL SYSTEM - A battery charging station receives power from two or more sources and supplies power to charge batteries of electric vehicles and devices. | 2012-12-27 |
| 20120326669 | POWER TOOL STORAGE CASE - A power tool storage case includes a main case that has a tool storage portion, a battery storage portion and a charger storage portion, and a lid that can open and close the main case. The charger storage portion is a dual-purpose storage portion that can hold one of a charger and a battery pack in accordance with selection of one of the charger and the battery pack. | 2012-12-27 |
| 20120326670 | CHARGE CONTROL SCHEME FOR USE IN POWER TOOLS - A simplified control scheme is presented for use in a power tool. The power tool may be comprised of two or more lithium-ion battery cells connected in series and operable to drive the motor in the tool. A charging circuit is configured to receive a charging current from an AC adapter and to supply the charging current to the battery cells. A microcontroller monitors the voltage of the battery cells and terminates charging of the battery cells in accordance with the monitored voltages of the battery cells. The microcontroller does not receive power from the battery cells but is only powered by the AC adapter. Of note, each of the battery cells preferably employs an electrolyte composition comprised of a redox shuttle material. In combination with other tool components, the use of the redox shuttle material reduces or eliminates the need for expensive charge and discharge controls, thereby reducing the cost of the tool. | 2012-12-27 |
| 20120326671 | BALANCING THE STATES OF CHARGE OF CHARGE ACCUMULATORS - Electrical systems for balancing charging or loading of parallel-arrayed charge accumulators ( | 2012-12-27 |
| 20120326672 | Reversible polarity operation and switching method for ZnBr flow battery when connected to common DC bus - An improved electrolyte battery is provided that includes a tank assembly adapted to hold an amount of an anolyte and a catholyte, a number of cell stacks operably connected to the tank assembly, each stack formed of a number of flow frames disposed between end caps and a number of power converters operatively connected to the cell stacks. The cell stacks are formed with a number of flow frames each including individual inlets and outlets for anolyte and catholyte fluids and a separator disposed between flow frames defining anodic and cathodic half cells between each pair of flow frames. The power converter is configured to connect the battery with either forward or reverse polarity to a DC power source, such as a DC bus. The anodic and cathodic half cells switch as a function of the polarity by which the battery is connected to the Dc power source. | 2012-12-27 |
| 20120326673 | COBALT OXIDE, COMPOSITE OF COBALT OXIDE, AND METHOD FOR MAKING THE SAME - A method for making a composite of cobalt oxide is disclosed. An aluminum nitrate solution is provided. Lithium cobalt oxide particles are introduced into the aluminum nitrate solution. The lithium cobalt oxide particles are mixed with the aluminum nitrate solution to form a mixture. A phosphate solution is added into the mixture to react with the aluminum nitrate solution and form an aluminum phosphate layer on surfaces of the lithium cobalt oxide particles. The lithium cobalt oxide particles with the aluminum phosphate layer formed on the surfaces thereof are heat treated to form a lithium cobalt oxide composite. The lithium cobalt oxide composite is electrochemical lithium-deintercalated at a voltage of Vx, wherein 4.5V| 2012-12-27 | |
| 20120326674 | SWITCHING DEVICE FOR ELECTRIC VEHICLE AND METHOD OF CONTROLLING THE SWITCHING DEVICE - Provided are a switching device for an electric vehicle and a method of controlling the switching device. The switching device includes a switch, a signal selection part, an inverter, and a controller. The switch generates a first or second switching signal according to an operation mode. The signal selection part receives the first or second switching signal, and selects the first or second switching signal according to the operation mode to output the selected switching signal. The inverter performs a direct current/alternating current conversion process on power according to the switching signal output from the signal selection part, and outputs the power. The controller determines the operation mode, and generates a control signal according to the operation mode such that the signal selection part selects the first or second switching signal. | 2012-12-27 |
| 20120326675 | SYSTEM FOR PREVENTING DETERIORATION OF STORAGE CAPACITY OF LEAD ACID BATTERY AND REUSING LEAD ACID BATTERY BY ELECTRICAL TREATMENT - A system for removing a layer of lead sulfate insulation crystals in which lead sulfate is selectively subjected to heating by dielectric relaxation loss at a peak frequency of lead sulfate dielectric relaxation loss of 10 MHz, thereby finely decomposing the crystals which have turned into poor conductors to oxidize positive electrodes of lead oxide and reduce negative electrodes of elemental lead by charging current. | 2012-12-27 |
| 20120326676 | METHOD AND ARRANGEMENT FOR IMPROVING THE PERFORMANCE OF A SAFETY-CRITICAL VEHICLE ACTUATOR - Embodiments herein relate to an arrangement and method for improving the performance of a safety-critical vehicle actuator, in particular a safety-critical vehicle actuator powered directly or indirectly from a vehicle electrical system. The safety-critical vehicle actuator is arranged to, upon activation thereof, signal to an alternator of the vehicle to output a raised voltage for a pre-determined time period. | 2012-12-27 |
| 20120326677 | ROTARY ELECTRICAL MACHINE WITH EXCITATION PROVIDED WITH A DIGITAL REGULATOR DEVICE - The rotary electrical machine is capable of functioning as a generator and outputs a continuous output voltage (Ub+) that is adjustable by an excitation current. The digital regulator ( | 2012-12-27 |
| 20120326678 | Method for Protecting an Automotive Generator From Overheating - A method for protecting an automotive generator from overheating, in which a predefined limiting characteristic curve, related to a base temperature and describing a maximally allowed excitation current value, is shifted as a function of a calculated temperature, a static offset is ascertained in a first step and a dynamic offset is ascertained in a second step during ascertainment of the calculated temperature, the static offset is ascertained as a function of the excitation current and the dynamic offset is ascertained as a derivation of the excitation current over time. | 2012-12-27 |
| 20120326679 | DEVICE FOR OPTIMIZING ENERGY USAGE IN MULTIPHASE AC POWER SOURCE - An energy optimization alternating current power balancing system for a three phase alternating current power source using various configurations of chokes, wire inductors and capacitors connected across and in parallel to each power lines from the alternating current power source. An inductor in the alternating current power-balancing device or system is connected in series to the neutral line of the alternating current power source to create a more balanced power distribution system by improving the power factor and increasing the efficiency of energy consumption in multiphase alternating current power source. | 2012-12-27 |
| 20120326680 | COMMON CASCODE ROUTING BUS FOR HIGH-EFFICIENCY DC-TO-DC CONVERSION - Embodiments for at least one method and apparatus of generating a regulated voltage are disclosed. One method includes generating the regulated voltage through controlled closing and opening of a series switch element and shunt switch element. This method includes closing the series switch element during a first period, the series switch element comprising a plurality of series switch elements segments. The method includes applying a switching gate voltage to gates of series switching transistors of a subset of the plurality of series switch elements segments of the series switch element, wherein only the series switching transistors of the subset of the plurality of series switch elements segments of the series switch element turn on, while series protection transistor of more than the subset of the plurality of series switch elements segments of the series switch element turn on. The shunt switch element during is closed during a second period. | 2012-12-27 |
| 20120326681 | POWER SUPPLY UNIT - A power supply unit includes first and second sub-power supply module, each having first and second inductor, first and second switching element which switches current supplied from an input power supply to the first and second inductor, first and second drive control circuit which drives the first and second switching element, and first and second sub-output terminal to which current is output from the first and second inductor respectively; and a common output terminal to which the first sub-output terminal and the second sub-output terminal are coupled, wherein an ON operation of the first switching element is controlled depending on whether or not an output voltage of the common output terminal is lower than a first voltage, and an ON operation of the second switching element is controlled depending on whether or not the output voltage is lower than a second voltage, which is different from the first voltage. | 2012-12-27 |
| 20120326682 | POWER SUPPLY CIRCUIT WITH SPIKE SUPPRESSION CIRCUIT - A power supply circuit includes a pulse width modulation (PWM) chip, a number of phase circuits, a voltage output end, and a spike suppression circuit. The spike suppression circuit is connected to each of the phase circuits and the voltage output end. The PWM chip controls all of the phase circuits to alternately output power supply voltages according to a predetermined sequence. The spike suppression circuit receives the power supply voltages, and filters out voltage spikes in the power supply voltages, thereby outputting steady voltages to the voltage output end. | 2012-12-27 |
| 20120326683 | EQUALIZATION OF THE CURRENT IN A THREE-PHASE ELECTRICAL POWER SYSTEM - This is directed to systems, processes, machines, and other means that enable automatic shifting of current loads in a three phase power system. The invention can rapidly shift power phases to various loads such that each phase could power each load, resulting in equalizing the average current in each power phase. | 2012-12-27 |
| 20120326684 | Power Converter With Capacitive Energy Transfer And Fast Dynamic Response - A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices. | 2012-12-27 |
| 20120326685 | POWER SUPPLY CONTROL DEVICE AND POWER SUPPLY CONTROL METHOD - A control device includes a first terminal receiving a monitored output voltage and a second terminal transmitting a pulse width modulation (PWM) signal. A converting unit generates an A/D conversion synchronous signal, and an A/D converter samples the monitored output voltage in accordance with the A/D conversion synchronous signal. A pulse oscillator controls a position of a first edge on the PWM signal in accordance with the A/D conversion synchronous signal, and controls a position of a second edge based on the monitored voltage. | 2012-12-27 |
| 20120326686 | POWER SUPPLY GENERATOR WITH NOISE CANCELLATION - Techniques for performing noise cancellation/attenuation are disclosed. In one design, an apparatus includes a power supply generator having a switcher, a coupling circuit, an envelope amplifier, and a feedback circuit. The switcher generates DC and low frequency components and the envelope amplifier generates high frequency components of a supply voltage for a load, e.g., a power amplifier. The switcher receives a first supply voltage and provides a switcher output signal having switcher noise. The coupling circuit receives the switcher output signal and provides a first output signal having a first version of the switcher noise. The feedback circuit receives the switcher output signal and provides a feedback signal. The envelope amplifier receives an envelope signal and the feedback signal and provides a second output signal having a second version of the switcher noise, which is used to attenuate the first version of the switcher noise at the load. | 2012-12-27 |
| 20120326687 | CHOPPER CIRCUIT, DC/DC CONVERTER, AND FUEL CELL SYSTEM - A chopper circuit includes an input unit that inputs a main turn-on signal for turning on a main switching element and an auxiliary turn-on signal for turning on an auxiliary switching element; and a prohibiting unit that prohibits the main switching element from turning on unless the auxiliary turn-on signal is input. | 2012-12-27 |
| 20120326688 | SWITCHING POWER SUPPLY WITH QUICK TRANSIENT RESPONSE - A switching power supply with a quick transient response is provided. A hysteretic control loop which comprises a hysteretic controller ( | 2012-12-27 |
| 20120326689 | SWITCHING REGULATOR DEVICE AND METHOD WITH ADAPTIVE FREQUENCY FOLDBACK - A control circuit for a switching regulator includes a clock circuit, a pulsewidth modulation (PWM) circuit, and a reduction monitor. The clock circuit provides a clock signal at a variable frequency. The PWM circuit produces a drive signal of at least a first predetermined duration once every period of the clock signal. The reduction monitor controls the clock circuit to reduce the variable frequency in response to a sense signal that indicates that at least one of a voltage and a current is outside a limit during the first predetermined duration of said drive signal. | 2012-12-27 |
| 20120326690 | MOS TRANSISTOR DRAIN-TO-GATE LEAKAGE PROTECTION CIRCUIT AND METHOD THEREFOR - A circuit having an active mode and a sleep mode includes a power transistor, an amplifier, and a protection circuit. The power transistor has a first current electrode coupled to a first power supply terminal, a second current electrode as an output of the circuit for coupling to a load, and a control electrode, wherein the power transistor is characterized by having a threshold voltage and a leakage current, wherein the leakage current occurs between the control electrode and the first current electrode during the sleep mode. The amplifier has an output coupled to the control electrode of the power transistor that provides an active output during the active mode. The protection circuit detects the leakage current and prevents the leakage current from developing a voltage on the control electrode of the power transistor that exceeds the threshold voltage of the power transistor. | 2012-12-27 |
| 20120326691 | VOLTAGE CONVERTER HAVING AUXILIARY SWITCH IMPLEMENTED THEREIN AND RELATED VOLTAGE CONVERTING METHOD THEREOF - A voltage converter has an input terminal and only N output terminals, and includes a DC-DC power supply block having an input node and an output node, (N+1) switches including N main output switches and an auxiliary switch each having a first end and a second end, and a switch control circuit. The DC-DC power supply block includes an inductor, and a switch module configured for alternating between a first interconnection configuration and a second interconnection configuration during a predetermined time period. First ends of the (N+1) switches are coupled to the output node, and second ends of the N main output switches are coupled to the N output terminals, respectively. The switch control circuit is configured for controlling the switch module and the (N+1) switches, wherein the (N+1) switches are switched on alternately during the predetermined time period. | 2012-12-27 |
| 20120326692 | POWER-SUPPLY CONTROL APPARATUS AND POWER-SUPPLY CONTROL METHOD - A power-supply control apparatus uses a margin setting unit to set the value of a margin that is added to a request voltage value VID | 2012-12-27 |
| 20120326693 | Voltage reference and temperature sensor - A highly accurate voltage reference and temperature sensor circuit requires only several low-cost components in addition to a general-purpose microcontroller with an analog-to-digital converter. Unlike known circuits, the circuit disclosed does not rely on matching between a pair of semiconductor devices, as only a single semiconductor junction is used. All of the signal processing may be performed digitally. | 2012-12-27 |
| 20120326694 | DATA RETENTION SECONDARY VOLTAGE REGULATOR - An integrated circuit device has a primary voltage regulator and an ultra-low power secondary voltage regulator. The ultra-low power secondary voltage regulator supplies voltage to certain circuits used for providing data retention and dynamic operation, e.g., a real time clock and calendar (RTCC) when the integrated circuit device is in a low power sleep mode. The primary voltage regulator provides power to these same certain circuits when the integrated circuit is in an operational mode. | 2012-12-27 |
| 20120326695 | INTERMITTENTLY ACTIVATED BANDGAP REFERENCE CIRCUIT - A circuit for providing a reference voltage includes a bandgap reference circuit, a first unity gain buffer coupled to the bandgap reference circuit, a first switch for coupling a second reference voltage node to a third reference voltage node, a first capacitor coupled to the third reference voltage node, a second switch for coupling the third reference voltage node to a fourth reference voltage node, and a second capacitor coupled to the fourth reference voltage node, wherein during operation a fourth reference voltage at the fourth reference voltage node decays when the second capacitor discharges. A control circuit provides control signals for intermittently operating the bandgap reference circuit and for controlling the switches to recharge the second capacitor after the fourth reference voltage decays a predetermined amount. | 2012-12-27 |
| 20120326696 | VARIABLE VOLTAGE GENERATION CIRCUIT - A variable voltage generation circuit includes an amplifier, a P-type metal-oxide-semiconductor transistor, at least one variable resistor, and a lower resistor. Each variable resistor includes M resistors and M switches. An i | 2012-12-27 |
| 20120326697 | Temperature Independent Reference Circuit - A temperature independent reference circuit includes first and second bipolar transistors with commonly coupled bases. First and second resistors are coupled in series between the emitter of the second bipolar transistor and ground. The first and second resistors have first and second resistance values, R | 2012-12-27 |
| 20120326698 | JOINT CONNECTOR AND METHOD FOR IDENTIFYING BUS BAR PATTERN IN JOINT CONNECTOR - A joint connector includes a bus bar and a housing. The bus bar juxtaposes plural tab pieces to be connected to mating terminals. The housing has a bus bar accommodating part accommodating the bus bar, and includes plural terminal receiving chambers for receiving the mating terminals. The housing is formed with plural continuity check holes at a back end of the housing so as to expose a back end of the bus bar. In a case where the plural bus bars are accommodated in the bus bar receiving parts, at least one of the continuity check holes is positioned between the adjacent bus bars, and the at least one of the continuity check holes is formed in a resin-sealed part filled with an insulating resin material. | 2012-12-27 |
| 20120326699 | GALVANIC ISOLATION DEVICE AND METHOD - Various exemplary embodiments relate to an isolation device including a semiconductor layer and an insulation layer. The insulation layer insulates a central portion of the semiconductor layer. A high voltage terminal connects to the insulation layer, a first low voltage terminal connects to a first non-insulated portion of the semiconductor layer, and a second low voltage terminal connects to a second non-insulated portion of the semiconductor layer. The first and second low voltage terminals are electrically connected via the semiconductor layer. A voltage applied to the high voltage terminal influences the conductance of the semiconductor layer. The high voltage terminal is galvanically isolated from the first and second low voltage terminals. | 2012-12-27 |
| 20120326700 | Apparatus and Methods for Time Domain Measurement of Oscillation Perturbations - An oscillatory apparatus and methods of utilizing the same. In one embodiment, the apparatus comprises a force sensor having a proof mass, with one or more sensing electron tunneling electrodes disposed thereon, and a frame comprising one or more reference electron tunneling electrodes. Conductive plates disposed on the sensor base and capping wafers induce oscillations of the proof mass. The sensing and the reference electrode pairs are disposed in a face-to-face configuration, thus forming a digital switch characterized by one or more closed states. In the closed state, the switch generates triggering events, thereby enabling the sensing apparatus to generate a digital output indicative of the mass position. The time period between consecutive trigger events is used to obtain mass deflection due to external forcing. Time separation between the triggering events is based on the physical dimensions established during fabrication, thus not requiring ongoing sensor calibration. | 2012-12-27 |
| 20120326701 | Configurable Process Variation Monitoring Circuit of Die and Monitoring Method Thereof - The present invention discloses a configurable process variation monitoring circuit of a die and monitoring method thereof. The monitoring method includes a ring oscillator, a frequency divider and a frequency detector. The ring oscillator includes a plurality of first standard cells, a plurality of second standard cells and a plurality of multiplexers. The ring oscillator generates an oscillation signal in a first mode or a second mode according to a selection signal. The frequency divider is coupled to the ring oscillator and divides the oscillation signal by a value to generate a divided signal. The frequency divider is coupled to the frequency divider and counts periods of the divided signal by a base clock to generate an output value where the output value is related to the process variation. | 2012-12-27 |
| 20120326702 | ELECTROMAGNETIC WAVE RESONATOR AND ITS FABRICATION PROCESS AS WELL AS ELECTROMAGNETIC WAVE GENERATOR - The main object of the invention is to provide an electromagnetic wave resonator making use of surface waves: an electromagnetic wave resonator structure capable of being achieved with existing technologies yet without much difficulty and applying voltage to a positive dielectric area, thereby overcoming a variety of problems arising from the fact that only thermal excitation is available. | 2012-12-27 |
| 20120326703 | CURRENT MEASUREMENT APPARATUS - A current measurement apparatus includes multiple GMR elements and a calculation unit. The multiple GMR elements each include a pinned magnetic layer having a pinned magnetization direction, and a free magnetic layer having a magnetization direction to be changed by an external magnetic field. The calculation unit obtains the magnitude of a current to be detected, from outputs of the multiple GMR elements. The multiple GMR elements are disposed in ring shape around a conductor through which the current to be detected flows, and are electrically connected so as to form a series variable resistor by using the multiple GMR elements. The magnetization directions of the pinned magnetic layers are pinned in the same direction when viewed from an extension direction of the conductor at each of the positions of the elements. | 2012-12-27 |
| 20120326704 | Method and Apparatus for Measuring Speed of a Brush Motor - A system for determining motor speed of a brush DC motor, including a first filter for receiving a substantially low frequency portion of a sensed current of the motor and parameters corresponding thereto, for calculating a speed estimate of the motor; an adaptive bandpass filter having a center frequency corresponding to the speed estimate of the first filter, for receiving the sensed current and substantially isolating a first periodic current fluctuation thereof. A detected frequency of the first periodic current fluctuation corresponds to the speed of the brush DC motor. The system may include a tracking frequency selection block for selecting a frequency component of the sensed current and providing same to the first filter, wherein the speed estimate is based in part upon the selected frequency component. | 2012-12-27 |
| 20120326705 | Method and Apparatus for Measuring Speed of a Brush Motor - A system for determining motor speed of a brush DC motor in an apparatus, including a first filter for receiving a substantially DC component of the motor current and parameters corresponding to the brush DC motor, for calculating a speed estimate thereof; an adaptive bandpass filter having a center frequency corresponding to the speed estimate of the first filter, for receiving the motor current and substantially isolating a periodic current fluctuation thereof; a block for determining a frequency of the periodic current fluctuation, the current fluctuation corresponding to motor speed of the brush DC motor. The adaptive bandpass filter uses debounce filtering to reduce rapid filter passband switching, and a run-in period prior to passband switching to obviate transient effects of filter switching. | 2012-12-27 |
| 20120326706 | METHOD FOR DETERMINING THE SET POSITION OF AN ADJUSTMENT PART - An adjustment system and method is provided for determining a set position of a motor-driven adjustment part of a motor vehicle by a Hall sensor, which is arranged in a rotated magnetic field. The drive of the adjustment part is activated for a specified number of approaches of the adjustment part toward an end position. A counter is changed by a counting value upon each approach of the adjustment part toward the end position. A standardization drive to the end position is carried out when the specified number of approaches is reached, and each deactivation and/or activation of the Hall sensor is detected and the counter state of the counter is changed according to the number of deactivation and activation cycles. | 2012-12-27 |
| 20120326707 | Environmental Noise Reduction For Magnetometry - A magnetic signal noise reduction and detection system has inputs configured to receive data from a first total field scalar magnetometer, data from a vector magnetometer, and data from a position, velocity and heading sensor, a signal processor configured with a pre-processor system, an adaptive noise cancellation system and a detection system, the pre-processor system configured to carry out initial processing of data received. The pre-processor is configured to convert data to the frequency domain and pass the converted data to the adaptive noise cancellation system. The adaptive noise cancellation system is configured to carry out multivariate regression on the converted data to reduce detected noise. The detection system is configured to detect magnetic anomalies and output information in real time about the magnetic anomalies to a user interface. | 2012-12-27 |
| 20120326708 | MAGNETIC ENCODER - To provide a magnetic encoder that is stable relative to an outside force and has only small variation of a gap between a magnetic sensor and a magnetic medium. The magnetic encoder includes a magnetic medium placed on a first member and a magnetic sensor placed on the second member, the first and second member for moving relative to each other. The magnetic sensor includes a sensor substrate, a sensor holding plate for holding the sensor substrate, and a wire for extracting a signal from the magneto-resistive element to outside. The sensor holding plate includes a fixing portion for fixing the sensor holding plate to the second member, a sensor holding member for holding the sensor substrate, and a plurality of arm portions provided in the relative movement direction with the sensor holding member in-between and extending from the fixing portion to constitute a cantilever. | 2012-12-27 |
| 20120326709 | METHOD FOR A MEASURING INSTRUMENT - A method for a measuring instrument is disclosed, for separating the angular deviation of a rotational axis of an instrument body from a corresponding true rotational axis due to imperfections in at least one rolling-element bearing effectuating the rotational mounting of the instrument body into different parts corresponding to type of imperfection. The method comprises detecting rotary position of the at least one rolling-element bearing, and determining angular deviation of the rotational axis from the corresponding true rotational axis in a plurality of rotational positions of the instrument body, wherein the instrument body is rotated a plurality of successive full or partial revolutions about the rotational axis. There is also disclosed a measuring system and a measuring instrument to be used in such a measuring system. | 2012-12-27 |
| 20120326710 | METHOD FOR DETECTING THE MECHANICAL STRESS TO WHICH A PART MADE OF A MAGNETOSTRICTIVE MATERIAL IS SUBJECTED - The invention relates to a method for detecting the stress to which a part of a magnetic material having a detectable magnetostriction, such as a ferromagnetic material, is submitted, comprising the steps of: a) applying a variable stress to the part b) measuring the magnetic field (B) in the vicinity of the part during the application of the variable stress to the part; and c) comparing the measurement with a reference measurement. | 2012-12-27 |
| 20120326711 | TOROIDAL CONDUCTIVITY PROBE WITH INTEGRATED CIRCUITRY - An apparatus and process for making noncontact measurements of liquid conductivity are disclosed. This apparatus forms a conductivity cell and uses two toroids, one to generate a magnetic field and another to sense the magnetic field, placed in an enclosure which allows liquid to pass through it for measurement. Ground planes constructed preferably of printed circuit boards with conductive layers are used to reduce capacitive coupling between the toroids and provide better shielding. Circuitry on or near these circuit boards are used to convert local, low level signals from a sensing toroid to signals which can be more readily passed to and from a recording system or operator without degradation. Sensors on or near these circuit boards can be used to sense environmental conditions in order to improve operation and stability of the conductivity cell. Methods and apparatus for increasing circuit sensitivity and calibrating the sensor are also disclosed. | 2012-12-27 |
