15th week of 2011 patent applcation highlights part 9 |
Patent application number | Title | Published |
20110084598 | Carbonitride Phosphor, Preparation Method and Light Emitting Device Thereof - A carbonitride phosphor is provided, which is represented by a general chemical formula of (M | 2011-04-14 |
20110084599 | SINGLE TRIPHENYLENE CHROMOPHORES IN PHOSPHORESCENT LIGHT EMITTING DIODES - Novel triphenylene compounds are provided. Specific examples include multi-aryl-substituted triphenylenes. A preferred group of compounds are triphenylenes that are substituted with a non-fused aryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups and alkyl groups. A further preferred group of compounds are triphenylenes that are substituted with a non-fused heteroaryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl or heteroaryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups, non-fused heteroaryl groups, and alkyl groups. Some high triplet energy analogs are expected to work with deep blue phosphorescent dopants. The compounds may be useful in phosphorescent organic light emitting devices. Also provided is an organic electroluminescent device comprising an anode, a cathode, and an emissive layer between the anode and the cathode, the emissive layer comprising a phosphorescent material and a compound having a repeat unit, the repeat unit containing a triphenylene moiety. | 2011-04-14 |
20110084600 | ORGANIC LIGHT-EMITTING DEVICE - An organic light-emitting device including a substrate; a first electrode on the substrate; a second electrode; an organic layer between the first electrode and the second electrode; and a carbonaceous material-containing layer between the first electrode and the organic layer, wherein the first electrode includes an aluminum (Al)-based reflective layer and a transparent conductive layer sequentially stacked in this order on the substrate, the Al-based reflective layer including a first element and nickel (Ni) and the first element includes at least one of lanthanum (La), cerium (Ce), praseodymium (Pr), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu). | 2011-04-14 |
20110084601 | WHITE LIGHT EMISSION ORGANIC ELECTROLUMINESCENT ELEMENT, ILLUMINATING DEVICE AND DISPLAY - Disclosed is a coating type organic EL element having excellent chromaticity stability to driving current, excellent chromaticity stability during continuous driving and excellent color rendering property. | 2011-04-14 |
20110084602 | LUMINESCENT COMPOSITION, ELECTROLUMINESCENT SHEET USING THE LUMINESCENT COMPOSITION, AND PROCESS FOR PRODUCING THE ELECTROLUMINESCENT SHEET - The present invention provides a luminescent composition capable of providing an electroluminescent sheet with a high productivity at low costs in an efficient manner, an electroluminescent sheet obtained from the luminescent composition which can be mass-produced, and a process for producing the electroluminescent sheet. The present invention relates to an adhesive luminescent composition produced by kneading and dispersing an electroluminescent substance in a resin having a glass transition temperature of from −70 to 5° C.; an electroluminescent sheet including at least a first substrate, a first electrode, an electroluminescent layer, a second electrode and a second substrate which are successively laminated in this order, wherein the first substrate and the first electrode are transparent, and the electroluminescent layer is formed from the luminescent composition; and a process for producing the electroluminescent sheet, including the steps of preparing a first laminate and a second laminate by the following step (1) or (2); and bonding a side of the electroluminescent layer of the first laminate to a side of the second electrode of the second laminate, or bonding a side of the first electrode of the first laminate to a side of the electroluminescent layer of the second laminate: | 2011-04-14 |
20110084603 | INORGANIC ELECTROLUMINESCENT DEVICE AND MANUFACTURING METHOD THEREOF - An inorganic electroluminescent device includes: patterned metal electrodes periodically disposed at pre-set intervals; and a phosphor layer positioned on the patterned metal electrodes, wherein as a first voltage and a second voltage are alternately applied to the patterned metal electrodes according to the order of their disposition, light emitted from the phosphor layer is discharged to the spaces between the patterned metal electrodes. | 2011-04-14 |
20110084604 | PLASMA DISPLAY PANEL - A plasma display panel (PDP) including: first and second opposing substrates; a discharge layer disposed between the substrates, having discharge cells; address electrodes disposed on the first substrate, extending in a first direction, across the discharge cells; and display electrodes disposed on the second substrate, extending across the discharge cells in a second direction. The discharge layer includes: a discharge enhancement layer disposed on the first substrate, having first spaces; and a barrier rib layer disposed on the discharge enhancement layer, having second spaces that are connected to the first spaces, so as to form the discharge cells. The discharge enhancement layer further includes a perimeter member disposed in a dummy area provided at the edges of an effective area of the PDP. | 2011-04-14 |
20110084605 | HIGH-PRESSURE GAS DISCHARGE LAMP FOR A LIGHTING DEVICE - The invention relates to a high-pressure gas discharge lamp ( | 2011-04-14 |
20110084606 | DEVICE FOR THE GENERATION OF MICROWAVES - The invention relates to a device for the generation of microwaves, comprising a virtual cathode oscillator ( | 2011-04-14 |
20110084607 | Integrated driver system architecture for light emitting diodes (LEDS) - A method includes forming one or more capacitors over a substrate. The method also includes forming a transformer at least partially over the substrate. The transformer is adjacent to at least one of the one or more capacitors. At least a portion of the transformer is formed at a same level over the substrate as the one or more capacitors. The method further includes coupling the one or more capacitors and the transformer to at least one embedded integrated circuit die. The one or more capacitors, the transformer, and the at least one embedded integrated circuit die form at least part of a light emitting diode (LED) driver. | 2011-04-14 |
20110084608 | LED-BASED LIGHTING SYSTEM FOR RETROFITTING FLUORESCENT LIGHTING FIXTURES IN A TRANSIT VEHICLE - An LED-based lighting unit for retrofitting a fluorescent light fixture in a transit vehicle has a concave frame or structure conforming to the shape of the fluorescent lighting fixture cavity, connector pins on either end of the frame for secure attachment to sockets of the fluorescent fixture, a plurality of LED modules for illuminating an area of a transit vehicle, a power adapter for receiving and converting an input power supply signal, and a diffusive lens cover. The frame may have rear fins or other features for facilitating dissipation of heat generated by the LEDs. A controller adjusts the intensity of the LEDs based on a reading from a temperature sensor and on a manual brightness setting. The change in light output may be accomplished by reducing a duty cycle of a pulse width modulated (PWM) waveform supplying the LEDs. | 2011-04-14 |
20110084609 | ILLUMINATION DEVICE, AUTOMOTIVE LIGHTING EQUIPMENT, AND VEHICLE - An illumination device improved in safety to the eye is provided. The illumination device includes: a semiconductor laser element to serve as an excitation light source which emits laser light; a fluorescent plate which contains a fluorescent substance for emitting light of a desired color and is irradiated with laser light emitted from the semiconductor laser element; a light receiving element part which detects light reflected from the fluorescent plate; and a light source control part which controls laser light emitted from the semiconductor laser element based on a detection signal from the light receiving element part. | 2011-04-14 |
20110084610 | Bi-color License Plate Frame - A bi-color license plate frame, for surrounding a license plate of a vehicle, comprises a rectangular body comprising an aperture that is adapted to show a license plate, and a wall defining a hollow frame space inside the wall, a plurality of light-emitting elements contained in the frame space, and a controller that is electrically connected to the light-emitting elements and that controls the light intensity of the light-emitting elements according to the braking status of the vehicle. The wall of the rectangular body is translucent to the light of the light-emitting elements, and comprises a light diffusion layer, whereby surface illumination is provided when the light-emitting elements are turned on. Bi-color may include metal look and color emitted by the light-emitting elements, or red or black color of the light-diffusion layer and color emitted by the light-emitting elements. | 2011-04-14 |
20110084611 | MITIGATING SPARKS IN AN ION WIND FAN - Ion wind fans are susceptible to sparks occurring across an emitter electrode and a collector electrode of an ion wind fan. According to one embodiment, the present invention includes mitigating a spark event by providing a resistor in series between an ion wind fan power supply and an ion wind fan. In one embodiment, the resistance of the resistor is at least one order of magnitude lower than the resistance across the ion wind fan during normal operation. | 2011-04-14 |
20110084612 | HYBRID CHIP-ON-HEATSINK DEVICE AND METHODS - A hybrid chip-on-heatsink device comprises at least one LED die, at least one printed circuit board (PCB), and a thermally conductive substrate or heatsink. The LED die is physically and thermally coupled to the thermally conductive substrate. The PCB is physically coupled to the thermally conductive substrate. The LED die is electrically coupled to the PCB. The thermally conductive substrate acts as a spreader and as a heatsink, whereby heat is efficiently dissipated away from the LED die. The PCB may optionally contain other electrical components, and circuitry to create a “smart” LED package or light engine. | 2011-04-14 |
20110084613 | END-OF-LIFE PROTECTION CIRCUIT AND METHOD FOR HIGH INTENSITY DISCHARGE LAMP BALLAST - An apparatus and method thereof for igniting and operating a high intensity discharge (HID) lamp during an in service life, and powering down the lamp when an end-of-life (EOL) lamp condition is detected. The apparatus and method defines a series of thresholds of lamp voltage asymmetry, or rectification thresholds, and monitors the lamp rectification from ignition through normal operation. The detection scheme is masked off for a predetermined period of time when the lamp is initially started. Thereafter, the rectification threshold of the lamp voltage asymmetry is gradually reduced over time, until a defined minimum rectification threshold level is reached and maintained. The method continuously monitors the lamp voltage and records whenever the lamp voltage asymmetry is higher than the rectification threshold level at any lamp voltage cycle. An EOL lamp condition is determined to exist when a certain number of high asymmetrical cycles occurs in selected total number of lamp voltage cycles during a rolling measurement window. | 2011-04-14 |
20110084614 | LED LIGHTING SYSTEM - A system and method involving lighting fixtures, a control network, a controller and other devices such as light sensors, input devices and network adapters for coordinating precise brightness and color schedules among the lighting fixtures while maintaining a high color reliability including provisions for managing a plurality of lighting fixtures. The lighting fixtures contain lighting elements selected such that when controlled properly, operating along a daytime locus, the resultant light output closely resembles sunlight on a cloudless day in spectral characteristics, and wherein the total flux of blue light can be adjusted from a relative level of 1-100% the maximum blue flux of the lighting fixture by controlling individual lighting elements. | 2011-04-14 |
20110084615 | LED ASSEMBLY, LED FIXTURE, CONTROL METHOD AND SOFTWARE PROGRAM - A plurality of LEDs arranged in groups, each group comprising at least one LED, a control circuit for driving the LEDs, the control circuit comprising a sensing device for sensing an operative parameter of the LEDs. The control circuit is arranged to: a) operate at least one group of the LEDs: b) sense by the sensing device a value of the operative parameter of the at least one group; c) repeat a) and b) for at least a different one of the groups; d) assign to each of the groups of LEDs a value of the operative parameter from the sensed operative parameter values; and e) control the driving of the groups of LEDs from the assigned operative parameter values. | 2011-04-14 |
20110084616 | SOLID STATE LIGHTING DEVICES PROVIDING VISIBLE ALERT SIGNALS IN GENERAL ILLUMINATION APPLICATIONS AND RELATED METHODS OF OPERATION - A solid state lighting apparatus includes a plurality of light emitting diodes, a sensor configured to output a sensor signal indicative of at least one operating condition of the solid state lighting apparatus, and a control circuit coupled to the sensor. The control circuit is configured to temporarily interrupt electrical current to ones of the plurality of light emitting diodes at respective intervals responsive to the sensor signal indicating that the operating condition does not meet a desired operating threshold to provide a visible indicator thereof in light emitted by the apparatus. Related devices and methods of operation are also discussed. | 2011-04-14 |
20110084617 | High reliability and long lifetime AC LED device - A high reliability and long lifetime AC LED device includes: an LED group, a rectifier diode group and an AC power. The LED group includes a plurality of LED micro-chips connected in series. The rectifier diode group includes four rectifier diodes. The AC power is electrically connected to the rectifier diode group, and the rectifier diode group is electrically connected to the LED group. The AC power includes a positive half-cycle voltage and a negative half-cycle voltage. The rectifier diode group enables the LED group to conduct both in positive and negative half-cycle voltage, so as to prevent the LED group from bearing high reverse bias voltage, and extend the light-emitting lifetime and enhance the reliability. | 2011-04-14 |
20110084618 | LED DRIVING CIRCUIT HAVING A LARGE OPERATIONAL RANGE IN VOLTAGE - An LED driving circuit includes a current selecting circuit. The current selecting circuit controls the current transmission path in the plurality of LEDs according to respective threshold voltages of corresponding LEDs and a plurality of current limits. | 2011-04-14 |
20110084619 | Light Emitting Diode Selection Circuit - The present invention relates to a Light Emitting Diode (LED) selection circuit for an LED driver that drives multiple unequal lengths of LED strings, which selectively turns the LED strings ON and OFF corresponding to an input alternating current (AC) line voltage. The LED driver provides optimal efficiency as input AC line voltage varies from low to high voltages (i.e. 90V to 150V for nominal 120 VAC operation and 190V to 250V for nominal 220 VAC operation). Thus The LED driver can be used internationally since it accepts voltages from virtually every industrialized country in the world. The LED selection circuit in accordance with the present invention comprises a rectifier, multiple LED strings, multiple current sources and a controller. The controller generates multiple signals to the corresponding current source and turns ON and OFF the LED strings. | 2011-04-14 |
20110084620 | ADAPTIVE PWM CONTROLLER FOR MULTI-PHASE LED DRIVER - A multi channel LED driver comprises a plurality of LED strings. Each of the plurality of LED strings are associated with a separate channel. A voltage regulator generates an output voltage to the plurality of LED strings responsive to an input voltage and a PWM control signal. First control logic generates the PWM control signal responsive to a voltage at a bottom of each of the plurality of LED strings. A plurality of dimming circuitries, each connected to one of the bottoms of the plurality of LED strings, control a light intensity in each of the plurality of LED strings responsive to dimming control signals. Second control logic generates the dimming control signals responsive to forward currents monitored through each of the plurality of LED strings and dimming data. | 2011-04-14 |
20110084621 | LIGHT-EMITTING ADJUSTMENT METHOD AND DISPLAY DEVICE - A light-emitting adjustment method and a display device are provided. The display device includes a voltage source, a light-emitting diode array, a pulse width modulator, a current sensor and a light-emitting adjuster. The voltage source provides an operating voltage. The pulse width modulator provides operating pulse signals to multiple light-emitting diodes arranged in column in order. The current sensor senses a plurality of overall current values of the light-emitting diodes at different timings during the light-emitting diodes are sequentially enabled. The light-emitting adjuster computes an operating current value of each of the light-emitting diodes according to the overall current values and performs a compensation operation based on the operating current value to obtain and output a compensation signal. | 2011-04-14 |
20110084622 | DIMMER DECODER WITH LOW DUTY CYCLE HANDLING FOR USE WITH LED DRIVERS - A method includes receiving a sense signal having multiple pulses, where the sense signal is based on an output of a dimmer. The method also includes, for each of multiple sampling periods, (i) identifying a pulse duty cycle by sampling at least one pulse in the sense signal and calculating a duty cycle of the at least one pulse and (ii) generating an output value identifying a duty cycle for driving one or more LEDs. The output value is based on the pulse duty cycle. The method further includes generating a holding current for the dimmer (i) during the sampling of the at least one pulse in at least one of the sampling periods and (ii) when the pulse duty cycle is less than a specified threshold. The holding current can be applied continuously when the pulse duty cycle is less than the specified threshold (such as 15%). | 2011-04-14 |
20110084623 | Dimmer decoder with adjustable filter for use with led drivers - A method includes receiving a sense signal having multiple pulses, where the sense signal is based on an output of a dimmer. The method also includes, for each of multiple sampling periods, (i) identifying at least one pulse duty cycle for at least one pulse in the sense signal during that sampling period and (ii) generating an output value identifying a duty cycle for driving one or more light emitting diodes (LEDs). The output value is based on the at least one pulse duty cycle. The method further includes filtering the output values using a filter and adjusting the filter based on a rate at which the output of the dimmer changes. The filter could be adjusted by controlling whether an additional resistor forms part of an RC filter based on a sampling state. | 2011-04-14 |
20110084624 | LIGHT EMITTING DEVICE ADAPTED FOR AC DRIVE - A light emitting device comprising a first common electrode ( | 2011-04-14 |
20110084625 | Switching Circuit Adapted in LED Circuit - A switching circuit adapted in an LED circuit and an LED circuit are provided. The switching circuit has a mode-selecting circuit, a comparator and a control module. The mode-selecting circuit has a voltage-dividing module and a switch. The voltage-dividing module receives and divides a reference voltage to further generate a working voltage. The switch is connected to the voltage-dividing module, wherein the switch has an output. The comparator comprises a first input connected to the switch, a second input and a comparator output. During a measuring mode, the switch transfers the reference voltage and the second input is connected to the comparator output. During a working mode, the switch transfers the working voltage, the second input of the comparator receives an output voltage of the LED circuit and the control module generates a control signal according to the voltage of the comparator output to switch the LED circuit. | 2011-04-14 |
20110084626 | TWO-WIRE DIMMER CIRCUIT FOR A SCREW-IN COMPACT FLUORESCENT LAMP - A dimmer switch for controlling the intensity of a dimmable screw-in compact fluorescent lamp provides smooth dimming of the fluorescent lamp and prevents flickering of the lamp due to multiple re-strikes. The dimmer switch prevents multiple re-strikes by avoiding multiple firings of a controllably conductive switching device of the dimmer circuit by limiting the high-end light intensity of the fluorescent lamp. Specifically, the dimmer switch limits the length of a conduction interval of the controllably conductive switching device to less than approximately 75% of each half-cycle. The dimmer switch may include a user-accessible adjustment actuator for changing the dimmer switch between an incandescent operating mode and a screw-in compact fluorescent mode. The dimmer switch may also be operable to automatically change the dimmer switch between the incandescent operating mode and the screw-in compact fluorescent mode by detecting the occurrence of the multiple firings of the controllably conductive switching device. | 2011-04-14 |
20110084627 | Shelf Lighting Device And Method - The present invention provides various embodiments for apparatuses, systems, and methods for lighting devices used in shelving, displays, and the like. Some embodiments provide lighting device comprising elongated extrusions with a first surface and a second surface proximate the first surface. The second surface may be reflective. One or more light emitting devices may be mounted at the first surface of the extrusion. The first surface is angled with respect to the second surface such that at least a portion of the light emitted from the light emitting devices reaches the second surface. If the second surface is reflective, at least a portion of the emitted light will be reflected from the second surface. A protective and possibly light diffusive lens may be provided between the first and second surfaces. In other embodiments, lighting systems may be provided with a plurality of lighting devices as described above. One or more power transfer devices may be provided to connect the lighting devices in vertical and/or horizontal arrangements, and at least one power supply may be provided to power the power transfer devices and lighting devices. Additionally, dimmer devices with integrated sensors may be included to dim the lighting devices when reduced illumination is desired. | 2011-04-14 |
20110084628 | CONFIGURABLE LIGHTING DEVICES UNDER BROADCAST CONTROL - A control unit for controlling an illumination parameter of one or more light sources of a plurality of light sources is described. The control unit being arranged to—select the one or more light sources of the plurality of light sources, receive an input signal representing a required value of the illumination parameter for the selected one or more light sources, convert the input signal to a broadcast signal for the plurality of light sources; —enable the broadcast signal to be provided to the plurality of light sources thereby enabling the selected one or more light sources to comply with the required value of the illumination parameter. | 2011-04-14 |
20110084629 | LED LIGHTING DEVICE - LED lighting device ( | 2011-04-14 |
20110084630 | SEWABLE LIGHT GUIDE DEVICE - A sewable light guide device includes a light source controlled to be on or off by a controller, and the light source includes a joint, and the joint is connected to a sewable light guide strip, and the light guide strip contains at least one light guide etch mark formed inside the light guide strip, and a joint element is installed at a side of the light guide strip along an axial direction, such that the joint element can be sewed or fixed to an object such as a bag, a shoe or a cloth, and the light guide strip is exposed from a surface of the object, and the light source can be turned on to drive the light guide strip to produce a light along the light guide etch mark, so as to improve the visually noticeability of the object. | 2011-04-14 |
20110084631 | FLASHLIGHT WITH A PUSHBUTTON SWITCH - A flashlight is described comprising a flashlight body comprising a tube with a first end and a second end, the tube configured to hold at least one battery; a bulb holder for holding an illumination source at the first end of the tube; and a circuit interruption and completion device forming a complete circuit between the illumination source and the battery, when the device is in a closed mode, the device comprising a pushbutton switch which is manually actuated between at least a first closed mode and a second mode. The switch controls multiple functions of the flashlight. The switch requires at least one of a force of less than about 1000 gf and a stroke of less than 4 mm to be operably actuated. | 2011-04-14 |
20110084632 | CIRCUIT FOR CONTROLLING ROTATION SPEED OF COMPUTER FAN - A circuit for controlling a rotation speed of a computer fan includes a control chip, a conversion circuit, a fan header, a first switch, and a second switch. When a first terminal of the first switch is connected to a second terminal of the first switch, and a first terminal of the second switch is connected to a second terminal of the second switch, the conversion circuit converts a control signal received from the control chip to a voltage signal, and outputs the voltage signal to a power pin of the fan header. When the first terminal of the first switch is connected to a third terminal of the first switch, and the first terminal of the second switch is connected to a third terminal of the second switch, a control pin of the fan header receives the control signal, the power pin receives power from a first power supply. | 2011-04-14 |
20110084633 | Glass sheet processing/handling machine - In a glass sheet processing/handling machine, at least one electric motor for powering a respective movable member is powered by a drive having a direct power device connected to an industrial electric power mains; and a rechargeable power device alternative to the direct power device and having a storage block for storing energy produced by the electric motor when decelerating the relative movable member. | 2011-04-14 |
20110084634 | Motor apparatus including Lundell motor having Lundell-type rotor - The Lundell motor apparatus includes a controller for controlling a field current passed to a field coil of a Lundell-type rotor of a motor and an armature current passed to a stator coil of the motor in order to generate a required torque. When the field current is If, the armature current is Ia, a d-axis inductance is Ld, a q-axis inductance is Lq, a q-axis current as a q-axis component of the armature current is Iq, a d-axis current as a d-axis component of the armature current is Id, a field torque is Tf, a field flux is Φf, a reluctance torque is Tr, and a combined torque of the field torque and the reluctance torque is ΣT, the controller passes the d-axis current Id to the stator coil within a phase angle range in which the combined torque ΣT become larger than the field torque Tf in order to generate the reluctance torque Tr which is equal to (Ld−Lq)Id·Iq in addition to the field torque Tf. | 2011-04-14 |
20110084635 | SLOW SPEED OPERATION OF BRUSHLESS DIRECT CURRENT MOTORS BY GATING PULSE WIDTH MODULATION DRIVE - Slow speed operation of a brushless DC (BLDC) motor is enhanced by gating off some of the PWM pulses in each commutation period. By doing so, longer PWM pulse widths may be used at PWM signal frequencies that are inaudible while still allowing desired slow speed operation of the BLDC motor. Centering the non-gated PWM pulses in each commutation period where peak back EMF occurs, further reduces losses and improves delivery of maximum torque from the BLDC motor. | 2011-04-14 |
20110084636 | METHOD FOR REDUCING COGGING TORQUE EFFECTS OF AN ELECTRICAL PERMANENT MAGNET MACHINE - A method for reducing cogging torque effects of an electrical permanent magnet machine includes running an “a” test and a “b” test with different cogging compensation signals. A first value is calculated by multiplying a complex cogging amplitude of the compensation signal applied for the “a” test with a complex amplitude of a vibration signal resulting from cogging torque of the “b” test. A second value is calculated by multiplying a complex cogging amplitude of the compensation signal applied for the “b” test with a complex amplitude of the vibration signal resulting from cogging torque of the “a” test. A desired complex cogging compensation amplitude is calculated by dividing the difference between the first and second values by a difference between the complex amplitudes of the vibration signals resulting from the “b” test and the “a” test. A cogging compensation torque is applied to the machine based on the desired complex cogging compensation amplitude. | 2011-04-14 |
20110084637 | MOTOR AND DRIVE CONTROL SYSTEM THEREOF - Provided is a motor having a magnetic polar unit in which a permanent magnetic polar array having arranged therein alternately a plurality of permanent magnetic polar elements in alternate opposite poles is made to face a plurality of electromagnetic coil arrays alternately excited at opposite poles, and the permanent magnetic polar array is made to move thereby; wherein the motor further comprises a sensor for detecting the periodical magnetic change accompanying the movement of the permanent magnetic polar array, the output of the sensor is directly returned as a direct drive waveform to the electromagnetic coils, and this drive circuit forms the excitation signal based on the return signal. | 2011-04-14 |
20110084638 | METHODS, SYSTEMS AND APPARATUS FOR DYNAMICALLY CONTROLLING AN ELECTRIC MOTOR THAT DRIVES AN OIL PUMP - Methods, system and apparatus are provided for sensorless control of a vector controlled motor drive system that includes an electric motor used to drive an auxiliary oil pump. | 2011-04-14 |
20110084639 | SYNCHRONIZED MINIMUM FREQUENCY PULSE WIDTH MODULATION DRIVE FOR SENSORLESS BRUSHLESS DIRECT CURRENT MOTOR - Drive voltages to a sensorless brushless DC motor are regulated by varying the width of a single drive pulse (PWM pulse) centered in each of the commutation periods. Switching losses are thereby cut to an absolute minimum because there are only two transitions (on and off) in each drive commutation period. Back EMF zero-cross detectors determine the electrical timing relationships during each electrical cycle. Since the PWM drive pulses are always centered in each of the commutation periods, there will always be back EMF available for measurement of “zero-crossings.” A digital device controls power switching transistors to produce one single PWM pulse during each of the commutation periods. | 2011-04-14 |
20110084640 | VARIABLE PULSE WIDTH MODULATION FOR REDUCED ZERO-CROSSING GRANULARITY IN SENSORLESS BRUSHLESS DIRECT CURRENT MOTORS - Zero-crossing detection accuracy is enhanced in a sensorless brushless direct current (BLDC) motor by increasing the PWM drive frequency in anticipation of a zero-crossing event in any one or more commutation periods. Once a zero-crossing event is detected, the PWM frequency can go back to a lower normal operating frequency. Switching losses of the power drive transistors are thereby minimized while maintaining accurate zero-crossing detection for stable operation of the BLDC motor. | 2011-04-14 |
20110084641 | APPARATUS AND METHOD FOR AUTOMATICALLY CONTROLLING WIPER OF VEHICLE - Provided is an apparatus and method for automatically controlling a wiper of a vehicle, the apparatus including a light emitting means to output one or more optical signals to an inside of a front glass of the vehicle, a light receiving means to receive the optical signals output from the light emitting means, and a control means to control the wiper of the vehicle to be driven based on a light receiving efficiency with respect to received signals received by the light receiving means, when operating in an automatic wiper control mode. Since driving of the wiper is automatically controlled based on the light receiving efficiency of optical signals output to the inside of the front glass, it is possible to secure a visual field of a driver without a need to separately manipulate manually a wiper controller. | 2011-04-14 |
20110084642 | METHOD AND APPARATUS FOR FAILSAFE MONITORING AN ELECTROMOTIVE DRIVE - The invention relates to a method and to an apparatus for the failsafe monitoring of an electromotive drive ( | 2011-04-14 |
20110084643 | METHOD AND APPARATUS FOR FAILSAFE MONITORING AN ELECTROMOTIVE DRIVE - The invention relates to a method and to an apparatus for the failsafe monitoring of an electromotive drive ( | 2011-04-14 |
20110084644 | METHOD FOR SUPPLYING ELECTRICAL POWER TO A LOAD - A method is provided for supplying electrical power to a load, with a specific quantity of electrical power of different electrical power production types being drawn from an electrical power supply system by the load. The electrical power that is output by the electrical power supply system is identified in terms of its electrical power production type and the quantity of electrical power drawn by the load is detected separately in accordance with the electrical power production types. This provides the option of illustrating to the electrical power customer the origin of the electrical power which is drawn. | 2011-04-14 |
20110084645 | POWER SUPPLY DEVICE AND DRIVING METHOD THEREOF - A power supply device and a driving method thereof which produces and supplies electric energy from ecology-friendly “green” energy sources. The power supply device collects green energy and supplies power to a load, and includes: a main power source unit that includes a collection unit for collecting green energy and generate electric energy therefrom, a converter which converts the electric energy from the collection unit into a predetermined electric energy level and a battery unit that stores the electric energy converted by the converter and supplies power to the load; and an auxiliary power source unit that supports the main power source unit and supplies power to the load. Maximum energy may be collected from green energy sources and generate maximum amounts of electric energy. | 2011-04-14 |
20110084646 | Off-grid led street lighting system with multiple panel-storage matching - A system includes multiple photovoltaic panels having a combined output profile that defines energy or power generated by the photovoltaic panels over time. Each photovoltaic panel is configured to generate a peak amount of energy or power at a different time. The system also includes a storage device having a charging profile and configured to be charged by the photovoltaic panels. The charging profile defines a maximum amount of energy or power sinkable by the storage device at a given time. The output profile and the charging profile are substantially matched such that a maximum level of the output profile is approximately equal to the maximum amount of energy or power sinkable by the storage device. The maximum level of the output profile could be substantially constant over time between first and second peak amounts of energy or power generated by different photovoltaic panels. | 2011-04-14 |
20110084647 | SOLAR POWERED APPARATUS - A solar powered apparatus that includes a battery, at least one photovoltaic cell (which may be part of a solar module comprising multiple photovoltaic cells), and a DC-capable AC appliance, such as a compact fluorescent light. The solar powered apparatus may also include a first DC to DC converter that receives a first electrical signal from the at least one photovoltaic cell and provides a charging signal to the battery, and a second DC to DC converter that receives a second electrical signal from the battery and provides a DC power signal to the DC-capable AC appliance. | 2011-04-14 |
20110084648 | HYBRID ENERGY STORAGE SYSTEM - A hybrid energy storage system for supplying power to an application with a fluctuating load profile, such as, for example, electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, wind energy harvesting equipment and solar energy harvesting equipment. The hybrid energy storage system includes an ultra-capacitor electrically connected to a DC bus and a power source electrically connected to the DC bus via a controlled switch. The hybrid energy storage system further including a DC/DC converter connected between the power source and the ultra-capacitor, the DC/DC converter boosting a voltage of the power source to charge the ultra-capacitor. The DC/DC converter is preferably controlled to maintain a voltage of the ultra-capacitor at a higher value than the voltage of the power source. | 2011-04-14 |
20110084649 | POWER CHARGING DEVICE WITH CHARGE SATURATION DISCONNECTOR THROUGH ELECTROMAGNETIC FORCE RELEASE - A power charging device with charge saturation disconnector through electromagnetic force release is formed by charging power supply, charging control device, magnetic actuator conductive device, power excitation windings, rechargeable discharge device, and various detection devices optioned as need for detection the charge situation of the rechargeable discharge device. | 2011-04-14 |
20110084650 | BATTERY CHARGER - A battery charger is provided. The charger includes an AC input for connection to a source of AC power and a plurality of DC outputs each being connectable to a battery bank. A user interface is provided for inputting battery information including battery voltage and battery type for each DC output. A main controller is in communication with the user interface and receives the battery information from the user interface. The main controller uses the battery information to provide independent charging instructions for each DC output. At least one power module is in communication with the main controller and receives the charging instructions from the main controller. The power module is configured to convert the AC power from the AC input to DC power and is selectively connectable with each of the plurality DC outputs. The power module is configured such that the charging instructions from the main controller direct the power module as to which DC output to connect and a charge voltage and a charge amps to be provided by the power module to that DC output. | 2011-04-14 |
20110084651 | Charging station - A charging station for charging an electrical device, such as a cellular phone, has a housing, an electrical power plug mounted on a rear portion of the housing which is receivable by a wall mounted electrical power receptacle, an electrical power outlet mounted on a lateral side of the housing, and a universal serial bus (USB) connector mounted on a front face of the housing. A cradle is formed in an upper portion of the housing for supporting an electrical device being charged by the charging station. | 2011-04-14 |
20110084652 | Magnetically Coupled Battery Charging System - Inductively coupled battery charging systems and methods are provided. Transmit circuitry can include a transmit coil operatively part of a transmit resonant circuit that exhibits resonance at a transmit resonant frequency and an unloaded Q value of at least about 20. Transmit coil can generate a magnetic field at about the transmit resonant frequency. Rechargeable battery assembly can include a receive coil configured to receive inductively coupled current, and circuitry configured to rectify the current and communicate charging power to a storage cell. Receive coil can be part of a receive resonant circuit that exhibits resonance at about the transmit resonant frequency and an unloaded Q value of at least about 10. Transmit circuitry can include multiple transmit coils and can selectively discontinue production of alternating current in the coils generating fields that are not most strongly coupled to the receive coil. | 2011-04-14 |
20110084653 | Magnetically Coupled Battery Charging System - Inductively coupled battery charging systems and methods are provided. Transmit circuitry can include a transmit coil operatively part of a transmit resonant circuit exhibiting resonance at a transmit resonant frequency and an unloaded Q value of at least about 20. Transmit coil can generate a magnetic field at about the transmit resonant frequency. Rechargeable battery assembly can include a receive coil configured to receive inductively coupled current, and circuitry configured to rectify the current and communicate charging power to a storage cell. Receive coil can be part of a receive resonant circuit that exhibits resonance at about the transmit resonant frequency. Transmit circuitry can be configured to regulate alternating current produced in the transmit coil based on current flowing in the transmit resonant circuit and/or maintain the magnetic field at about the transmit resonant frequency by maintaining about a ninety degree phase shift between a square wave input and output. | 2011-04-14 |
20110084654 | Magnetically Coupled Battery Charging System - Inductively coupled battery charging systems and methods are provided. Transmit circuitry can include a transmit coil operatively part of a transmit resonant circuit that exhibits resonance at a transmit resonant frequency and an unloaded Q value of at least about 20. Transmit coil can generate a magnetic field at about the transmit resonant frequency. Rechargeable battery assembly can include a receive coil configured to receive inductively coupled current, and circuitry configured to rectify the current and communicate charging power to a storage cell. Receive coil can be part of a receive resonant circuit that exhibits resonance at about the transmit resonant frequency. Transmit circuitry can be configured to detect the rechargeable battery assembly by monitoring a load on the transmit coil. | 2011-04-14 |
20110084655 | PORTABLE ELECTRONIC DEVICE WITH ANTENNA AND POWER TRANSFER COIL - The present invention provides a portable electronic device including an antenna having a major planar cross-section, and a power transfer coil having windings parallel to a coil plane, the coil plane extending to the perimeter of the power transfer coil. The antenna and the power transfer coil are arranged such that the major planar cross-section is substantially perpendicular to the coil plane if a line directed perpendicularly from the coil plane intersects the major planar cross-section. An associated method of assembling a portable electronic device is also provided. | 2011-04-14 |
20110084656 | SYSTEM AND METHOD FOR WIRELESS POWER TRANSFER - A wireless transmission system having a transmitter and receiver is described. In one embodiment, the transmitter includes an electronically-controlled switch controlled by a first pulse width modulation control circuit, the switch configured to pull current through a first inductor when the switch is closed, the first pulse width modulation control circuit outputting a PWM output signal to control the switch. A first feedback signal obtained from a control input of the switch. A second feedback signal obtained from a terminal of the inductor, wherein a control feedback signal is computed, at least in part, as a difference between the first feedback signal and the second feedback signal is provided to the first pulse width modulation control circuit. In one embodiment, the receiver includes a second pulse with modulation controller, the second pulse width modulation controller controlling the receiver switch to deliver a desired power from the receiving coil to a load. | 2011-04-14 |
20110084657 | MOBILE DEVICE CHARGING BASE, AND MOBILE DEVICE AND CHARGING BASE SYSTEM - A charging base for charging a mobile device includes an induction coil and a battery pack. The pack includes a battery charged by the induction coil. The base includes a base case, a mount portion, a power supply coil, and a power supply. The mount portion is recessed on the surface of the case, and can detachably hold the device. The power supply coil is arranged in proximity to and inside the recessed bottom surface of the mount portion to be electromagnetically coupled to the induction coil, and connected to the power supply coil. A cut-out portion is formed in a surface of the mount portion by partially cutting out the case to communicate with the outside. This surface intersects a mount surface of the device. | 2011-04-14 |
20110084658 | ELECTRIC MACHINE AND POWER SUPPLY SYSTEM HAVING BATTERY PACK - An electric machine and a power supply system, in which a battery pack can be easily and safely replaced with another, and electric power can be transferred with high transfer efficiency. An electric machine of the present invention includes a driving electric motor, a battery pack for supplying electric power to the driving electric motor, and an energy transfer section for transferring electric energy output from the battery pack to the driving electric motor. The battery pack includes a first antenna for receiving electric power from a power supply source located outside the electric machine by coupling with a first resonant magnetic field generated by the power supply source, at least one secondary battery charged by the electric power received by the first antenna, an oscillator for producing radio-frequency power by DC power discharged from the secondary battery, and a second antenna for generating a second resonant magnetic field by the radio-frequency power. The energy transfer section includes a third antenna that couples with the second resonant magnetic field generated by the second antenna, and transfers the radio-frequency power received by the third antenna to the driving electric motor. | 2011-04-14 |
20110084659 | Mobile cart docking and communication system - A power and communication system for a mobile cart is provided. The system includes a wall unit, which includes a processor and a power circuit. The power circuit receives external power and provides switched AC power to the cart unit when the wall unit is engaged with the cart unit and the processor enables the power circuit. The system also includes a cart unit. The cart unit includes a memory device storing a signature. The memory device is coupled to the processor when the wall unit is engaged with the cart unit. The processor detects continuity when the wall unit is engaged with the cart unit, and in response, the processor reads the signature. The processor enables the power circuit if the signature is a valid signature, and disables the power circuit if the signature is invalid. The switched AC power recharges a rechargeable power source of the mobile cart. | 2011-04-14 |
20110084660 | WALL CHARGER WITH REMOVABLE CHARGER - A wall charger includes a body that has at least one prong configured to be connected to an alternating current (AC) power source, a Universal Serial Bus (USB) connection port, the USB connection port being electrically connected to the at least one prong, and a docking port, and a removable charger, wherein the docking port is configured to slidably receive the movable charger, the docking port being electrically connected to the at least one prong. In another aspect of the disclosure, the removable charger comprises a second USB connection port electrically connected to the at least one prong. In yet another aspect of the disclosure, a method for charging at least one portable electronic device with the wall charger includes connecting the at least one prong to an AC power source and connecting a portable electronic device (PED) to the USB connection port. | 2011-04-14 |
20110084661 | PORTABLE ELECTRIC DEVICE CHARGING CONNECTOR ARRANGEMENT - A portable electric device charging connector arrangement comprising a socket, a power supply connected to the socket, the socket including a female USB connector; an adapter comprising a housing and a male USB plug extending from the housing; a mounting arranged to support the housing; the mounting including a socket engaging portion arranged so that the socket engaging portion engages the socket when the USB plug is engaged in the USB socket; the housing further comprising a device connector extending upwardly in use so that a portable electric device may be charged when engaged to the device connector. | 2011-04-14 |
20110084662 | BATTERY PACK AND CHARGING CONTROL METHOD THEREOF - A charging control method for a battery pack including a plurality of battery cells in which a full charge voltage value is initially set as a first voltage value. The charging control method includes: charging the plurality of battery cells to the first voltage value in an initial charge mode; and resetting the full charge voltage value to a second voltage value less than the first voltage value in a subsequent charge mode. | 2011-04-14 |
20110084663 | Batteries, Battery Systems, Battery Submodules, Battery Operational Methods, Battery System Operational Methods, Battery Charging Methods, And Battery System Charging Methods - Batteries, battery systems, battery submodules, battery operational methods, battery system operational methods, battery charging methods, and battery system charging methods are described. According to one aspect, a battery includes a first battery terminal, a second battery terminal, and a plurality of submodules individually comprising a first submodule terminal, a second submodule terminal, a plurality of rechargeable cells electrically coupled between the first and second submodule terminals, and switching circuitry configured to electrically couple one of the first and second battery terminals with one of the first and second submodule terminals of one of the submodules during an engaged mode of operation of the one of the submodules and to electrically isolate the one of the first and second battery terminals from the one of the first and second submodule terminals of the one of the submodules during a disengaged mode of operation of the one of the submodules. | 2011-04-14 |
20110084664 | METHOD AND APPARATUS OF STORED ENERGY MANAGEMENT IN BATTERY POWERED VEHICLES - A secondary battery and charging system are provided within an electric car or other electric drive vehicle. The secondary battery may, e.g., be owned by the electric utility. The battery is removable and can be charged and discharged independently of the primary car battery system. The utility can use the secondary battery to implement vehicle-to-grid functionality. | 2011-04-14 |
20110084665 | Method and apparatus of stored energy management in battery powered vehicles - A secondary battery and charging system are provided within an electric car or other electric drive vehicle. The secondary battery may, e.g., be owned by the electric utility. The battery is removeable and can be charged and discharged independently of the primary car battery system. The utility can use the secondary battery to implement vehicle-to-grid functionality. | 2011-04-14 |
20110084666 | Smart Cart To Automatically Manage Portable Information Handling Systems - A smart cart for automatically managing a plurality of information handling systems. The system provides a plurality of functions. For example, in certain embodiments, the system provides one or more of security authentication for distributing the notebooks, automatic asset tracking functionality; identification of notebook charge status; provides identification of asset information (e.g., an asset tag number, a serial number or a computer name); network access to push patch updates at night when units are not in use; and charging control to optimize system availability and prevent AC input circuit overload. | 2011-04-14 |
20110084667 | CIRCUITS AND METHODS FOR CONTROLLING A CURRENT FLOWING THROUGH A BATTERY - A circuit for controlling a current flowing through a battery includes a driver and a filter coupled to the driver. The driver can generate a pulse signal in a first operating mode and generate a first signal in a second operating mode to control the current through the battery. The filter can filter the pulse signal to provide a filtered DC signal to adjust an on-resistance of a switch in series with the battery based on a duty cycle of the pulse signal in the first operating mode. The filter can receive the first signal and provide a second signal to drive the switch in a linear region in the second operating mode. | 2011-04-14 |
20110084668 | ELECTRICITY STORAGE SYSTEM HAVING A PLURALITY OF SERIES-CONNECTED STORAGE CELLS - An electricity storage system includes a plurality of storage modules connected in series, each storage module including a single storage cell or a plurality of storage cells connected in series, an isolation transformer and a rectifying circuit that are associated with each of the storage modules, the isolation transformer having a primary winding and a secondary winding, and a voltage balancing circuit that generates an alternating current by switching a direct-current power source, the primary windings of the isolation transformers being all connected in parallel and connected to an output end of the voltage balancing circuit by a common wiring, the secondary windings of the isolation transformers being connected to the corresponding storage modules via the respective rectifying circuits, the alternating current being supplied to the primary winding of each of the isolation transformers. | 2011-04-14 |
20110084669 | POWER SUPPLY DEVICE AND SYSTEM - A power supply device and system have an electrically polarized element in which a remnant electrical polarization is formed and retained. Electrodes are formed on the electrically polarized elements and the remnant electrical polarization generates an electrical potential on the electrodes. Electrical circuits are coupled to the electrically polarized element to control the external electric charges attracted and distributed on the electrodes, for establishing the electrical potential on the electrodes. The electrodes can output electric currents by controlling the external electric charges distribution. The electrically polarized element may be made of ferroelectric material, including a ferroelectric bulk ceramic, ferroelectric multilayer ceramic, ferroelectric single crystal, ferroelectric thin film, ferroelectric thick film and ferroelectric polymer, and all the other materials with electric polarization retained therein. Power supply devices and systems made according to the present invention have very long standby time, small in size and efficient for many applications including RF systems. | 2011-04-14 |
20110084670 | Power Distribution Systems - The present invention relates to power distribution systems (e.g. a marine power distribution and propulsion system) that include first and second ac distribution busbars. The first ac distribution busbar will typically be a medium voltage busbar for the propulsion drive systems and the second ac distribution busbar will typically be a low voltage for ships services. A 12-pulse rectifier has its ac terminals electrically connected to the first ac distribution busbar. A multiple output generator has first and second galvanically-isolated stator windings. The first stator winding provides a six-phase ac output and is connected to the first ac distribution busbar. The second stator winding provides a three-phase ac output and is connected to the second ac distribution busbar. The six-phase ac output is phase shifted relative to the three-phase ac output to reduce the problematic coupling of harmonic distortion between the first and second ac distribution busbars. | 2011-04-14 |
20110084671 | METHOD FOR MONITORING AN ELECTRODYNAMIC MACHINE - A method for monitoring an electrodynamic machine a stator and a rotor arrangement mounted along a rotatable shaft. The rotor arrangement is disposed within the stator and forms an air gap between the rotor arrangement and the stator. At least one sensor is disposed in the air gap and/or within the stator. Measurement signals are detected that are dependent on a magnetic field produced by the electrodynamic machine. The measurement signals are used as a basis for detecting oscillations of the shaft. | 2011-04-14 |
20110084672 | SYSTEMS AND METHODS FOR SYNCHRONIZED CONTROL OF ELECTRICAL POWER SYSTEM VOLTAGE PROFILES - Disclosed herein are various embodiments of systems and methods for controlling a voltage profile delivered to a load in an electric power system. According to various embodiments, an electric power system may include an electric power line, a variable tap transformer, and a capacitor bank. The variable tap transformer may include a plurality of tap positions. A tap change controller may be coupled with the variable tap transformer and may control the tap positions of the variable tap transformer. A capacitor bank controller may be coupled with the capacitor bank and may selectively couple the capacitor bank to the electric power line. The tap change controller and the capacitor bank controller may share system information related to the voltage profile along the electric power line and to change the voltage profile along the line using the variable tap transformer and the capacitor bank depending on the system information. | 2011-04-14 |
20110084673 | OPERATING PHASE NUMBER DEPENDENT COMPENSATION OF A MULTI-PHASE BUCK CONVERTER - A multi-phase buck converter has a digital compensator to select a set of compensation coefficients depending on the operating phase number of the multi-phase buck converter, or including different compensators for each operation phase number to improve the loop gain bandwidth, transient response and stability of the multi-phase buck converter. The multi-phase buck converter operates with more phase circuits for higher loading and operates with fewer phase circuits for lower loading. The compensation varies with the number of the operated phase circuits so to be adaptive to the operation condition with an optimized control-to-output voltage transfer function. | 2011-04-14 |
20110084674 | POWER CONVERTER USING NORMALLY ON FIELD EFFECT TRANSISTORS - The invention relates to a power converter comprising: | 2011-04-14 |
20110084675 | BOOSTER CIRCUIT - A booster circuit according to the present invention includes a booster that connects a boosting condenser that is charged and a direct-current power source in series through a switch for a boosting operation in order to generate a boosted voltage and charges a smoothing condenser with the boosted voltage through a switch for an outputting operation. The switch for the boosting operation is composed of a plurality of switches connected in parallel and at least one of the plurality of switches can be controlled independently. | 2011-04-14 |
20110084676 | CONTROL CIRCUIT AND METHOD FOR A POWER CONVERTER CONTROLLING ADAPTIVE VOLTAGE POSITION - A control circuit and method for a power converter controlling adaptive voltage position comprises an adder acquiring an output voltage difference between the output voltage and the reference output voltage, a digital compensator with an Z-domain transfer function to reference to the output voltage difference to generate a pulse width control signal, regulating the least significant bits of a denominator coefficient in the Z-domain transfer function such that a load line function of the power converter is performed via control of the pulse width control signal, and a pulse modulation circuit being controlled by the pulse width control signal to generate the pulse width modulation signal to control ON/OFF of power switch of the power converter. Thus, functions of controlling the negative or positive load lines and function of variable load line required by the operation of multiphase converter can be performed easily without complicated operations. | 2011-04-14 |
20110084677 | POWER SUPPLIES AND ASSOCIATED METHODS OF CONTROL - Switching mode power supplies (SMPS) that can operate in a control mode for a normal load condition and operate with a burst-mode controller for a light load condition are disclosed herein. In one embodiment, a method for controlling the switching mode power supply includes when the load is in a light load condition, the switching mode power supply is controlled by a burst-mode controller. | 2011-04-14 |
20110084678 | MULTI-THRESHOLD MULTI-GAIN ACTIVE TRANSIENT RESPONSE CIRCUIT AND METHOD FOR DIGITAL MULTIPHASE PULSE WIDTH MODULATED REGULATORS - Disclosed is a multi-phase pulse width, modulated voltage regulator and method in which transient voltage excursions or deviations that exceed the load line voltage by more than a pre-determined amount are detected by an ATR circuit and a correction signal is applied. The correction signal is in the form of asynchronous pulses and the number of such pulses is a function of the magnitude of the voltage excursion as determined by the number of thresholds that are exceeded. Also disclosed is an adaptive voltage positioning (AVP) circuit and method for early detection of a transient event by sensing voltage changes at the load and adjusting the target voltage with pre-determined current values prior to the time that ATR event changes in the current at the load are detected. | 2011-04-14 |
20110084679 | METHOD AND APPARATUS PROVIDING FINAL TEST AND TRIMMING FOR A POWER SUPPLY CONTROLLER - A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the selector circuit by toggling a voltage on an external terminal such as for example a power supply terminal, a control terminal or a function terminal of the power supply controller. The programmable circuit connection in the trim circuit can be programmed by applying a programming voltage to the external terminal. The shutdown circuit shuts down the power supply controller if the temperature rises above an over temperature threshold voltage. The shutdown circuit includes adjustment circuitry that can be used to test the shutdown circuit. The adjustment circuitry can adjust and reduce the over temperature threshold of the power supply controller. Thus, the power supply controller can be tested without having to actually heat the part. The disable circuit includes a programmable circuit connection, which when programmed prevents further trimming of power supply controller and prevents adjustment of the shutdown circuit over temperature threshold. | 2011-04-14 |
20110084680 | Transformer based voltage combiner with inductive shunt - In accordance with the invention there is also provided a voltage combiner ( | 2011-04-14 |
20110084681 | CIRCUITS AND METHODS TO PRODUCE A VPTAT AND/OR A BANDGAP VOLTAGE WITH LOW-GLITCH PRECONDITIONING - Provided herein are circuits and methods to generate a voltage proportional to absolute temperature (VPTAT) and/or a bandgap voltage output (VGO) with low 1/f noise. A first base-emitter voltage branch is used to produce a first base-emitter voltage (VBE | 2011-04-14 |
20110084682 | PROGRAMMABLE CURRENT MIRROR - A programmable current mirror a reference transistor, first and second mirror transistors, and a first current bypass. The reference transistor has a source and a gate coupled to a reference current node. The first and second mirror transistors are coupled together in series at a first node. Each of the first and second mirror transistors having gates coupled to each other and to the gate of the reference transistor. The first current bypass including a switch disposed in parallel with the second mirror transistor. The first current bypass is coupled to a source and a drain of the second mirror transistor and to the first node. | 2011-04-14 |
20110084683 | Low powered activation electronic device - A low powered activation electronic device includes a power source, an electronic circuit, having two spaced apart electrodes, electrically connected to the power source to form an opened circuit, and two fabric contacts made of textile material provided at the two electrodes of the electronic circuit, wherein the electronic circuit is formed a closed circuit to activate the electronic device in responsive to a physical touch by a human operator at the two fabric contacts. | 2011-04-14 |
20110084684 | SWITCHING OF RESISTOR EPI BIASING FOR REVERSED RESISTOR CONNECTION IN OFFSET ELEMENT CANCELLATION SYSTEM - A method of improving voltage detection accuracy and precision by employing a switchable resistor epi bias design, which consists of switches to control connection of resistor epi bias. By constantly maintaining the resistor epi bias to its own resistor terminal bias via switches, higher accuracy detection than conventional resistor bias method can be achieved. | 2011-04-14 |
20110084685 | Power Saving for Hot Plug Detect - Power saving for hot plug detect (HPD) is disclosed. In a particular embodiment, a method includes detecting, at a source device that is connectable to a sink device, a connection of the source device to the sink device via a connector. The source device includes a DC voltage source and the connection is detected without consuming power from the DC voltage source. | 2011-04-14 |
20110084686 | NATURE TONE RECOGNIZING METHOD AND APPARATUS - An apparatus and method to recognize tones from human singing or similar characteristics is described. | 2011-04-14 |
20110084687 | SIGNAL GENERATION CIRCUIT, FREQUENCY MEASUREMENT DEVICE INCLUDING THE SIGNAL GENERATION CIRCUIT, AND SIGNAL GENERATION METHOD - A signal generation circuit includes: a first signal source that generates a first signal; and a variable rate frequency divider section that generates a variable rate frequency-divided signal in which a first frequency-divided signal obtained by frequency-dividing the first signal by a first frequency dividing ratio and a second frequency-divided signal obtained by frequency-dividing the first signal by a second frequency dividing ratio temporally alternately appear in a specified mixing ratio. | 2011-04-14 |
20110084688 | 3-PHASE FARADAY OPTICAL CURRENT SENSOR ASSEMBLY - The object of the invention is to provide a method and a system for fixating a Faraday optical current sensor ( | 2011-04-14 |
20110084689 | Circuit, system and/or method for detecting an electrical connection between an electrical device and a power supply - A circuit, a system and/or a method detect a passive electrical connection and/or an active electrical connection between an electrical device and a power supply. An integrity of the electrical connection between the electrical device and the power supply is monitored to determine if the electrical device may have access to power and/or to determine if the electrical device may be secure while on display. A high frequency AC signal is modulated onto a positive power rail between the electrical device and the power supply. Capacitance circuitry of the electrical device may remove the high frequency signal from the positive power rail. An absence of the high frequency signal on the positive power rail indicates that the electrical connection exists between the electrical device and the power supply. A presence of the high frequency signal on the positive power rail indicates that the electrical connection does not exist between the electrical device and the power supply. | 2011-04-14 |
20110084690 | APPARATUS FOR MEASURING RF VOLTAGE FROM A QUADRUPOLE IN A MASS SPECTROMETER - An apparatus for measuring RF voltage from a quadrupole in a mass spectrometer are provided. The apparatus comprises at least one rectifying diode circuit for rectifying the RF voltage of the quadrupole to produce a rectified RF voltage. The apparatus further comprises at least one operational amplifier configured as a current to voltage converter, a negative input of the at least one operational amplifier connected to the output of at least one diode in the at least one rectifying diode circuit, a positive input of the at least one operational amplifier at ground, and an output of the at least one operational amplifier in a feedback look with the negative input, to reduce reverse leakage current from the at least one diode. | 2011-04-14 |
20110084691 | ROTATION DETECTOR - A rotation detector includes a first distance sensor disposed to face a rotating body with a gear portion formed non-parallel to a rotation axis for continuously measuring a distance from the gear portion during rotation of the rotating body, a second distance sensor disposed at a position different from the first distance sensor in a direction of the rotation axis for continuously measuring a distance from the gear portion during rotation of the rotating body, and an axis shift detecting portion for detecting an axis shift of the rotation axis based on a variation in the distance measured by at least one of the first and second distance sensors. | 2011-04-14 |
20110084692 | Magnetic-disturber detection method and detector, object-localizing method and system, recording medium for these methods - This method for detecting a magnetic disturber method comprises:
| 2011-04-14 |
20110084693 | SYSTEMS AND METHODS FOR IMAGE RECONSTRUCTION OF SENSITIVITY ENCODED MRI DATA - Methods and systems in a parallel magnetic resonance imaging (MRI) system utilize sensitivity-encoded MRI data acquired from multiple receiver coils together with spatially dependent receiver coil sensitivities to generate MRI images. The acquired MRI data forms a reduced MRI data set that is undersampled in at least a phase-encoding direction in a frequency domain. The acquired MRI data and auto-calibration signal data are used to determine reconstruction coefficients for each receiver coil using a weighted or a robust least squares method. The reconstruction coefficients vary spatially with respect to at least the spatial coordinate that is orthogonal to the undersampled, phase-encoding direction(s) (e.g., a frequency encoding direction). Values for unacquired MRI data are determined by linearly combining the reconstruction coefficients with the acquired MRI data within neighborhoods in the frequency domain that depend on imaging geometry, coil sensitivity characteristics, and the undersampling factor of the acquired MRI data. An MRI image is determined from the reconstructed unacquired data and the acquired MRI data. | 2011-04-14 |
20110084694 | INDUCTIVELY POWERED ELECTRIC COMPONENT OF AN MRI APPARATUS - The invention relates to a nuclear magnetic resonance imaging apparatus comprising: a main magnet ( | 2011-04-14 |
20110084695 | METHOD FOR MAKING A PERMANENT MAGNET PARTICULARLY FOR MRI SCANNERS AND A PERMANENT MAGNET, PARTICULARLY FOR MRI SCANNERS MADE BY SAID METHOD - Method for making magnets particularly for the use in MRI scanners, which magnets are three-dimensional and have a tubular wall made of magnetized material, with a closed or open annular shaped cross-section, the tubular wall being composed of individual elements made of magnetized material, the magnetization of each element made of magnetized material having a predetermined direction in the transverse section plane and said directions being determined such to generate a uniform static magnetic field in the cavity of the tubular wall. The invention provides the following steps:
| 2011-04-14 |
20110084696 | Fiber optic system for electromagnetic surveying - An electromagnetic survey sensing device includes at least two electrodes disposed at spaced apart locations. An electrical to optical converter is electrically coupled to the at least two electrodes. The converter is configured to change a property of light from a source in response to voltage imparted across the at least two electrodes. The device includes an optical fiber optically coupled to an output of the electrical to optical converter, the optical fiber in optical communication with a detector. | 2011-04-14 |
20110084697 | STEERABLE MAGNETIC DIPOLE ANTENNA FOR MEASUREMENT WHILE DRILLING APPLICATIONS - A steerable, magnetic dipole antenna for Measurement-While-Drilling (MWD) or Logging-While-Drilling (LWD) applications. The antenna elements use a hole arrangement in addition to grooves in a steel tool body, which is typically a drill collar. This antenna embodiment is extremely robust, meaning that does not significantly reduce the structural integrity of the tool body in which it is disposed. The antenna embodiment is also relatively wear resistant. The resultant magnetic dipole generated by this antenna is also electrically steerable in inclination angle from a common origin. A variable dipole moment inclination angle combined with independently measured tool rotation orientation during normal drilling allows the antenna to generate a magnetic dipole moment that may be directed at any three dimensional angle and from a common origin point at the centroid of the antenna. | 2011-04-14 |