11th week of 2013 patent applcation highlights part 18 |
Patent application number | Title | Published |
20130063064 | MOTOR CONTROL APPARATUS - There are provided a first notch filter disposed in a feedback control system, an oscillation extracting filter for outputting signal x | 2013-03-14 |
20130063065 | AUTOMATED SHADE CONTROL SYSTEM UTILIZING BRIGHTNESS MODELING - Automated shade systems comprise motorized window coverings, sensors, and controllers that use algorithms to control operation of the automated shade control system. These algorithms may include information such as: 3-D models of a building and surrounding structures, shadow information, reflectance information, lighting and radiation information, ASHRAE clear sky algorithms, log information related to manual overrides, occupant preference information, motion information, real-time sky conditions, solar radiation on a building, a total foot-candle load on a structure, brightness overrides, actual and/or calculated BTU load, time-of-year information, and microclimate analysis. Modeled brightness information may be utilized to control shades. | 2013-03-14 |
20130063066 | METHOD AND SYSTEM FOR DETECTING FAULTS IN A BRUSHLESS EXCITER - A method of operating an electrical machine is provided. The method includes the steps of providing a brushless excitation system including a diode rectifier having at least one diode, sensing heat energy generated by at least one resistor connected in parallel with the at least one diode, wirelessly transmitting a signal representative of the heat energy, detecting a deviation of generated heat energy from the at least one resistor, and generating a signal indicating an error if the deviation in generated heat energy exceeds a predetermined threshold. | 2013-03-14 |
20130063067 | POWER SEMICONDUCTOR MODULE, ELECTRIC-POWER CONVERSION APPARATUS, AND RAILWAY VEHICLE - A pair of elements that includes a Si-MOSFET and a Si-FWD connected in inverse parallel and operates as a positive side arm of an electric-power conversion apparatus and a pair of elements that operates as a negative side arm of the electric-power conversion apparatus are provided, where the first and second pairs of elements are accommodated in one power semiconductor module to compose a 2-in-1 module, and terminals are included which enables series connection of the pairs of elements. | 2013-03-14 |
20130063068 | MOTOR CONTROL DEVICE - A motor-control-device main unit includes a pressure-command-signal generating section, a pressure control section, a speed control section, a current control section, and a parameter-adjusting section. With respect to a parameter for a control computation by the pressure control section, the parameter-adjusting section includes an information-acquiring section and a parameter-calculating section. The information-acquiring section acquires, from an exterior, each of pieces of information including an elastic constant of a pressurized target, a reaction-force constant indicating information of a reaction force, a transfer characteristic from a motor torque to a motor speed, and parameters of the speed control section. The information-acquiring section previously acquires information of a control law of the speed control unit. The parameter-calculating section calculates a parameter for the pressure control section based on the information acquired by the information-acquiring section. | 2013-03-14 |
20130063069 | APPARATUS AND METHOD OF DRIVING MOTOR WITH INITIAL COMPENSATION - There are provided an apparatus and a method for driving a motor with initial compensation. The apparatus for driving a motor includes a current detecting part detecting a voltage of a driving current flowing in the motor through an inverter supplying the driving current to the motor; a peak value detecting part detecting a peak value of the voltage detected by the current detecting part; an A/D converting part converting the voltage from the peak value detecting part into a digital signal; and a driving controlling part driving the motor for a predetermined initial driving period to compensate for an offset in the driving current based on the digital signal from the A/D converting part. | 2013-03-14 |
20130063070 | MEDIUM VOLTAGE VARIABLE FREQUENCY DRIVING SYSTEM - The present invention provides a medium voltage variable frequency driving system, including a three-phase switch-mode rectification module, a multilevel inverter and a high-capacity capacitor module. The three-phase switch-mode rectification module is coupled with a three-phase electrical grid, for converting an AC voltage input with a fixed operating frequency on the three-phase electrical grid into a DC voltage. The multilevel inverter is used for converting the DC voltage into an AC voltage with a required variable frequency, so as to drive an induction motor. The high-capacity capacitor module is coupled between the three-phase switch-mode rectification module and the multilevel inverter, for temporarily storing the DC voltage. In the present invention, a three-phase switch-mode rectification technology is used at the front-end rectifier, and a diode-clamped three-level inverter is adapted correspondingly at the rear-end inverter. | 2013-03-14 |
20130063071 | Forced Air Turbine Electric Automobile (FATE) - An electric vehicle for transporting individuals may include an electric motor for powering the electric vehicle, a turbine blade to rotate and being connected to the electric vehicle, a motor/alternator being connected to the turbine blade to generate electric power from the rotation of the turbine blade, a first battery to receive the electric power from the motor/alternator, a second battery to receive the electric power from the motor/alternator and a controller to control the electric power received by the first battery and to control the electric power received by the second battery. The first battery may be only connected to power the electric motor and the second battery may be only connected to receive the electric power from the motor/alternator. | 2013-03-14 |
20130063072 | METHOD OF CONTROLLING FUEL CELL SYSTEM - In a fuel cell system, regeneration-time voltage fixed control is implemented where during regeneration or when regeneration is expected to occur, output voltage of a fuel cell is set to a voltage value outside an oxidation reduction progress voltage range, and the amount of reactant gas supplied to the fuel cell is changed based on the amount of electric power remaining in an energy storage device. In the regeneration-time voltage fixed control, it is determined whether or not regeneration occurs while a moving body equipped with the fuel cell system is moving down a slope, and in the case where it is determined that regeneration occurs while the moving body is moving down a slope, the amount of the reactant gas supplied to the fuel cell is decreased in comparison with the case where it is determined that regeneration occurs while the moving body is not moving down a slope. | 2013-03-14 |
20130063073 | BATTERY EXCHANGE, RECHARGE AND RECYCLE APPARATUS, SYSTEM AND METHOD - A battery cartridge and kiosk apparatus, system and method, which enables consumers to conveniently exchange depleted rechargeable batteries for fully-charged batteries, and to recycle used primary batteries. The system includes a self-contained, typically automated kiosk designed for high volume battery exchange at low cost, and also includes re-usable battery trays for convenient, safe, and standardized handling and transport of rechargeable consumer batteries. A kiosk of the invented system may also be configured to utilize renewable-energy mechanisms to provide power for operation and/or recharging. Rechargeable batteries are stored and managed in a high-density, simple yet reliable storage rack wherein they are recharged in parallel while preserving long battery life. Batteries may be “keyed” to prevent recharging via third-party charging devices, enabling operating efficiencies and cost reductions. | 2013-03-14 |
20130063074 | BATTERY CHARGE/DISCHARGE MANAGEMENT SYSTEM AND METHOD - A battery charge/discharge management system and method charge a battery according to an operation state of the battery. The system includes a reading module that reads a parameter of the battery; an analysis module that analyzes the parameter of the battery and determines the operation state of the battery according to the parameter of the battery so as to obtain a discharge parameter and record a discharge curve at that time; and a charging module having a mapping table that maps a plurality of discharge curve models and a plurality of charge modes, the charging module obtaining a discharge curve model according to the discharge curve and charging the battery based on a charge mode to which the mapping table maps the discharge curve model. As such, the battery is prevented from staying under high temperature and protected from being damaged by over charging/discharging. | 2013-03-14 |
20130063075 | Plug-In Electric Vehicle Supply Equipment with Indicators - A system for connecting an electric vehicle to a high voltage power source. The system including electric vehicle supply equipment (EVSE) having an electrical plug compatible with a high voltage power outlet, the plug connected to a power cord. The power cord is connected to a housing containing a number of electrical components configured to control the power flow to an electric vehicle to recharge the vehicle's batteries. The housing includes a plurality of light emitting diodes configured to indicate a status of the EVSE. The LEDs can flash, illuminate a solid color, not illuminate a solid color or a combination thereof. | 2013-03-14 |
20130063076 | CHARGER OF MOBILE TERMINAL AND MOBILE TERMINAL - A charging device for a mobile terminal and a mobile terminal are disclosed. The charging device includes a motor for power generation, a drive module, a charge pump module, a filtering and voltage regulation module and a control unit. The drive module is connected with an input end of the motor and is configured to obtain swing kinetic energy of the mobile terminal. The charge bump module is connected with an output end of the motor and is configured to boost a voltage output by the motor. The filtering and voltage regulation module is configured to perform direct current filtering and voltage regulation processing on a voltage output by the charge pump module, so as to output a charging voltage matching with a battery. The control unit is configured to accumulate charging current so as to adapt to the battery, and to control a charging process. | 2013-03-14 |
20130063077 | CHARGING SYSTEM - A charging system includes a charging cap having a cradle with first and second electrodes; and a rechargeable unit including a charging end having third and fourth electrodes arranged for engagement by the first and second electrode of the charging cap when the rechargeable unit is received in the charging cap and thereby provide electrical contact to enable charging of the rechargeable unit. At least one recess in the rechargeable unit is arranged to receive one or more clamping members of the charging cap for releasably securing the rechargeable unit to the charging cap. | 2013-03-14 |
20130063078 | CHARGING CIRCUIT AND CONTROL METHOD THEREFOR - A charging circuit includes a power path control unit which switches a first switch connected between a system connection terminal and a battery connection terminal on while not charging, and switches the first switch on and a second switch connected between an external power supply input terminal and the system connection terminal on while charging so as to supply power to a system and charge a battery. A voltage difference between the external power supply input terminal and the battery connection terminal is detected, a current flowing between the external power supply input terminal and the system connection terminal is detected, and it is determined that an external power supply is disconnected based on the detection results of the voltage differences and the current. | 2013-03-14 |
20130063079 | CHARGER - A charger includes an output circuit unit to output a charging current to a secondary battery, a voltage detection unit to detect a voltage of the secondary battery, and a control unit to control the output circuit unit, whereby constant current charging and constant voltage charging are performed. The control unit decreases a constant current value of the charging current by stages during the constant current charging and determines that the secondary battery has deteriorated by using a first voltage drop value of the secondary battery occurring upon first conversion and a second voltage drop value of the secondary battery occurring upon second conversion. | 2013-03-14 |
20130063080 | ELECTRIC STORAGE DEVICE MANAGEMENT APPARATUS - An electric storage device management apparatus is provided for monitoring an electric storage device assembly including a plurality of electric storage devices connected in series. The apparatus includes a voltmeter, a discharging circuit, and a controller. The discharging circuit is configured to discharge the electric storage devices individually. The controller is configured to: determine whether a unit time variation in voltage of a first electric storage device has increased to a reference value and a unit time variation in voltage of a second electric storage device has increased to the reference value; measure an elapsed time period since the unit time variation of the first electric storage device has increased to the reference value; and control the discharging circuit to discharge the electric storage devices based on the elapsed time period such that capacities of the electric storage devices are equalized. | 2013-03-14 |
20130063081 | Charger System and Method - Systems and methods of providing power through a Universal Serial Bus connector are provided. A charging system comprises an interface configured to receive power, a power converter coupled to the power source interface, the power converter configured to use the received power to generate power output, and a charging controller configured to control an amount of power provided at the USB connector on the power lines derived from the power output, and configured to generate an identification signal on the USB connector's two data lines, the identification signal usable to indicate the charger is not subject to standard USB power limitations, the identification signal provided through the use of a resistance between the D+ and D− data lines. | 2013-03-14 |
20130063082 | WIRELESS POWER RECEIVER AND CONTROL METHOD THEREOF - Methods and apparatus are provided for controlling a wireless power receiver for wirelessly receiving power. A drive power for driving the wireless power receiver is received from a wireless power transmitter. A communication network is established with the wireless power transmitter. A wireless power network that is controlled by the wireless power transmitter is joined. A charge power is received from the wireless power transmitter. | 2013-03-14 |
20130063083 | METHOD FOR TRANSMITTING SIGNALS FROM A PLURALITY OF WIRELESS POWER RECEIVERS TO WIRELESS POWER SUPPLIER - Methods and apparatus are provided for transmission and reception of signals. A signal is received that includes at least one of a power supply signal for wireless charging from a wireless power supplier and a power communication signal from at least one external wireless power receiver. The received signal is analyzed to determine whether the power communication signal is included with the power supply signal in the received signal. A transmission frequency of a transmission signal is determined based on whether the power communication signal is included with the power supply signal in the received signal. Transmission data for control of the wireless charging is modulated, and the modulated transmission data is output as the transmission signal over the transmission frequency. | 2013-03-14 |
20130063084 | Wireless Power Transfer Device - There is provided a wireless power transfer device comprising an input interface configured to receive a primary magnetic flux in a first direction, an output interface configured to output a secondary magnetic flux in a second direction different from the first direction, wherein the input interface and the output interface form a closed electric circuit. | 2013-03-14 |
20130063085 | RESONANCE-TYPE NON-CONTACT POWER SUPPLY SYSTEM - Movable body equipment is provided with: a secondary-side resonance coil, which receives power from a primary-side resonance coil of power supply equipment; a rectifier, which rectifies the power received by the secondary-side resonance coil; and a secondary battery, to which to which the power rectified by the rectifier is supplied. A resonance-type non-contact power supply system is provided with: state of charge detection units, which detect the state of charge of the secondary battery; and an impedance estimation unit, which estimates an impedance estimation value for the secondary battery on the basis of the state of charge of the secondary battery. When the absolute value of the difference between the impedance estimation value and the current impedance value of the secondary battery exceeds a threshold, a determination unit determines that a foreign body is present between the primary-side resonance coil and the secondary-side resonance coil. | 2013-03-14 |
20130063086 | CHARGING DEVICES AND METHODS FOR CHARGING ELECTRICALLY POWERED VEHICLES - Charging devices and methods for charging electrically powered vehicles are disclosed. One example charging device includes a processor configured to at least partially control a state voltage and a detection circuit coupled to the processor. The detection circuit includes an energy storage device and a discharge circuit coupled to the energy storage device. The energy storage device is configured to be charged by the state voltage. The discharge circuit is configured to discharge said energy storage device in response to a discharge command from said processor. The processor is configured to determine a charging state associated with the electrically powered vehicle based on a voltage across said energy storage device. | 2013-03-14 |
20130063087 | Charging Circuit and Method for Operating Such Circuit - A charging circuit includes first and second input terminals connecting the circuit to first and second supply terminals, respectively, of a DC power source, first and second output terminals providing an output voltage to a load to be charged, a first switch between the first and second input terminals, a current sensor between the first input terminal and the first output terminal in series with the first switch, a connecting element having first and second inductance connectors for connecting an inductance, the first inductance connector connected to the switch and the second inductance connector connected to the first output terminal, and a diode element connected to the first inductance connector and the second output terminal. The first switch and the current sensor are arranged to be connected to a control circuit arranged for controlling operation of the first switch in response to a signal received from the current sensor. | 2013-03-14 |
20130063088 | SYSTEM AND METHOD FOR CHARGING BATTERY PACK - Disclosed are a system and method for charging a battery pack. The system uses a recovery vehicle to quickly charge a vehicle battery pack. The system includes a charging power supply module equipped in the recovery vehicle, quick charging power lines placed in the vehicle battery pack, a quick charge switch placed in the quick charging power lines, and a control module. | 2013-03-14 |
20130063089 | ELECTRIC STORAGE DEVICE MANAGEMENT APPARATUS AND METHOD OF EQUALIZING CAPACITIES OF ELECTRIC STORAGE DEVICES - An electric storage device management apparatus is provided for monitoring an electric storage device assembly charged and discharged by a charger/discharger. The electric storage assembly includes a plurality of electric storage devices connected in series. The electric storage device management apparatus includes a voltmeter, a discharging circuit, and a controller. The voltmeter is configured to measure voltages of the electric storage devices respectively. The discharging circuit is configured to discharge the electric storage devices individually. The controller is configured to: determine whether a voltage of each electric storage device has reached a reference voltage during charging or discharging of the electric storage device assembly; and control the discharging circuit to discharge each electric storage device if the voltage of the electric storage device has reached the reference voltage. | 2013-03-14 |
20130063090 | BATTERY PROTECTION CIRCUIT AND BATTERY PROTECTION DEVICE, AND BATTERY PACK - A battery protection circuit to protect secondary batteries coupled in parallel, includes an overdischarge detection part provided for each of the secondary batteries and to output an abnormality signal when an overdischarge is detected from a corresponding one of the secondary batteries, an overcurrent detection part provided for each of the secondary batteries and to output an abnormality signal when an overcurrent is detected from a corresponding one of the secondary batteries, and a discharge control part to prohibit a discharge of at least one secondary battery when the abnormality signal is output from at least one of the overdischarge detection part and the overcurrent detection part. | 2013-03-14 |
20130063091 | BATTERY SYSTEM AND CONTROL METHOD OF BATTERY SYSTEM - A battery system includes a first battery and a second battery connected in parallel and performing charge and discharge. A first relay is switched between an ON state in which the charge and discharge of the first battery are allowed and an OFF state in which the charge and discharge of the first battery are prohibited. A second relay is switched between an ON state in which the charge and discharge of the second battery are allowed and an OFF state in which the charge and discharge of the second battery are prohibited. A controller controls the ON state and the OFF state of each of the first relay and the second relay. The controller also changes the order in which the first relay and the second relay are switched to the ON state, in performing the charge and discharge of the first battery and the second battery. | 2013-03-14 |
20130063092 | HIGH TEMPERATURE LITHIUM CELLS WITH SOLID POLYMER ELECTROLYTES - Electrochemical cells that use electrolytes made from new polymer compositions based on poly(2,6-dimethyl-1,4-phenylene oxide) and other high-softening-temperature polymers are disclosed. These materials have a microphase domain structure that has an ionically-conductive phase and a phase with good mechanical strength and a high softening temperature. In one arrangement, the structural block has a softening temperature of about 210° C. These materials can be made with either homopolymers or with block copolymers. Such electrochemical cells can operate safely at higher temperatures than have been possible before, especially in lithium cells. The ionic conductivity of the electrolytes increases with increasing temperature. | 2013-03-14 |
20130063093 | Cold End Switch Battery Management Control Method - In one embodiment of the cold end switch battery management control method, a battery generates an output voltage at a positive terminal thereof. A first control voltage is also generated by an integrated circuit. A gate of a field effect transistor (FET) receives the first control voltage, wherein the FET comprises a drain and a source with the source coupled to a negative terminal of the battery. The FET transmits current towards the battery in response to the gate receiving the first control voltage, wherein the first control voltage is greater than the output voltage, and wherein the first control voltage is less than a breakdown voltage of the integrated circuit. | 2013-03-14 |
20130063094 | METHOD AND SYSTEM FOR USE WITH A VEHICLE BATTERY - A method and system for use with a vehicle battery pack having a number of individual battery cells, where the method estimates, extrapolates or otherwise determines individual cell resistances. According to an exemplary embodiment, the method and system use a voltage and temperature reading for each of the individual battery cells, as well as a voltage and current reading for the overall battery pack to determine one or more cell resistance values, such as a minimum and maximum cell resistance for the battery pack. This approach relies upon temperature deviations in the battery pack to make assumptions or estimates regarding individual battery cell resistances. By having individual cell resistance values—instead of using an overall pack resistance value and building in a buffer to account for cell variations—better and more accurate cell-level data can be obtained that, in turn, can improve charging, discharging, cell balancing and/or other battery-related processes. | 2013-03-14 |
20130063095 | POWER SUPPLY DEVICE - Provided is a power supply device integrally combined with an electrical device body including a motor, comprising a rechargeable battery for supplying power to the motor, a microcomputer for detecting a residual capacity and a battery voltage of the battery, and a switching element provided between the battery and the microcomputer. The microcomputer stops charging the battery when the detected residual capacity has become 100%, and when the detected value of the battery voltage has become lower than a peak value after the value of the battery voltage passes the peak value, making it possible to prevent overcharging of the battery. The microcomputer also controls to turn off the switching element to stop the power supply from the battery to the microcomputer when the residual capacity becomes less than a predetermined threshold value, making it possible to reduce power consumption. | 2013-03-14 |
20130063096 | METHOD FOR CONTROLLING THE MAXIMUM CHARGE RATE OF AN ELECTROCHEMICAL ENERGY STORAGE DEVICE - A method for controlling the maximum charge rate during a charging process or discharging process of an electrochemical energy store device is generally characterised by current intensity. Said current intensity is dependent on the operating state of the electrochemical energy store device and on a group of boundary conditions. Said group typically comprises, for example, the temperature of at least one region of the electrochemical energy store device. The maximum charge rate may crucially depend on the mode of operation of the electrochemical energy store device, and therefore a distinction should be made in particular as to whether energy is being supplied to or withdrawn from said device. The electrochemical energy store device can heat up during charging or discharging processes, and therefore in particular the duration of the energy withdrawal and/or energy supply can influence the level of the current intensity which can be withdrawn and/or which can be supplied. The current intensity which can be withdrawn and/or supplied depends in particular upon the state of charge of the electrochemical energy store unit and is therefore controlled in particular on the basis of said state of charge. When in a critical temperature range, the electrochemical energy store cell is particularly difficult to control. Therefore, the current intensity which can be withdrawn or supplied is set to zero when a maximum temperature is reached and/or a minimum temperature is reached. | 2013-03-14 |
20130063097 | MONITORING A BATTERY IN A PORTABLE ELECTRONIC DEVICE - The disclosed embodiments provide a system that monitors a battery in a portable electronic device. During operation, the system monitors a state of charge of the battery while the battery is powering the portable electronic device. Next, when the state of charge of the battery reaches a predetermined reserve capacity, the system monitors a voltage of the battery. Then, when the monitored voltage of the battery reaches a predetermined termination voltage, the system puts the portable electronic device into a low power usage state. | 2013-03-14 |
20130063098 | METHOD AND SYSTEM FOR POWER SWITCH TEMPERATURE REGULATION - The invention is related to a method and system for temperature regulation of a power switch during charging of a portable device. The method includes the steps of establishing a connection between the portable device and a charging circuit, monitoring a charging current supplied from the charging circuit to the portable device, monitoring a temperature of the power switch, while the portable device is being charged, comparing the monitored temperature with a predefined threshold temperature, and restricting the charging current, based on the comparison. | 2013-03-14 |
20130063099 | High electrical field driver - A high electrical field driver for producing high electrical field is invented based on the switching circuit. The inventive high electrical field driver can produce at least one high electrical field. | 2013-03-14 |
20130063100 | DC/DC Converter, Method for Providing an Output Voltage on the Basis of an Input Voltage and Computer Program - A DC/DC converter includes a switch mode converter for providing an output voltage based on an input voltage and a drive signal generator configured to to provide a drive signal for the switch mode converter. The drive signal generator is configured to switch between a non-pulse-skipping mode and a pulse-skipping mode. Moreover, the drive signal generator is configured to adapt a setting of a pulse generation such that a length of a first pulse following a pulse skipping is larger than a minimum length of a pulse in the non-pulse-skipping mode. | 2013-03-14 |
20130063101 | METHOD AND APPARATUS FOR IMPLEMENTING A PROGRAMMABLE HIGH RESOLUTION RAMP SIGNAL IN DIGITALLY CONTROLLED POWER CONVERTERS - A system and method for controlling a power converter includes a digital-to-analog converter (DAC) and ramp generator for generating a reference current command. The DAC is configured to decrement (or increment) to a next state after a fixed number of clock pulses have occurred. The reference current command controls an output of the power converter. Means are provided for delaying an output of the DAC for a number of clock pulses less than the fixed number to increase a resolution of the DAC. | 2013-03-14 |
20130063102 | CONSTANT TIME CONTROLLER AND CONTROLLING METHOD FOR SWITCHING REGULATOR - The present invention relates to a constant time controller, controlling method thereof, and a switching regulator. In one embodiment, a controlling method for a switching regulator, can include: (i) detecting an output voltage and an inductor current of the switching regulator; (ii) determining if there is a transient change on a load of the switching regulator by using the output voltage and a first reference voltage; (iii) generating a control signal using the output voltage, the inductor current, and a second reference voltage; (iv) controlling a switch of the switching regulator to maintain the output voltage substantially constant when no transient change is determined on the load; and (v) deactivating the control signal to keep the inductor current changing along with a variation tendency of an output current of the switching regulator when a transient change is determined on the load. | 2013-03-14 |
20130063103 | Leakage-Current Compensation For A Voltage Regulator - In one embodiment, a method includes generating a drive current. Generation of the drive current results in a first leakage current, and the drive current and first leakage current each flow into a first node. The method also includes generating a second leakage current and amplifying the second leakage current to generate a leakage-compensation current. The leakage-compensation current flows away from the first node. | 2013-03-14 |
20130063104 | ELECTRONIC DEVICE AND METHOD FOR DC-DC CONVERSION WITH LOW POWER MODE - The invention relates to an electronic device and a method for DC-DC-conversion. The electronic device includes energizing switch and a commutating switch coupled at a switching node. The switching node is configured to be coupled to an inductor. The electronic device is configured to repeatedly suspend the regular synchronous switching of the commutating switch during a load detection period, to sense the voltage at the output node during the load detection period and to determine a high-load condition or a light-load condition of the DC-DC-conversion based on the sensed voltage at the output node. | 2013-03-14 |
20130063105 | DC-DC CONVERTER CONTROL CIRCUIT AND DC-DC CONVERTER INCLUDING SAME - A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switches, including a first feedback circuit; a second feedback circuit; a synthesis circuit to add a first feedback voltage indicating a DC component of an inductor current based on an output voltage of the DC-DC converter and a second feedback voltage indicating an AC component thereof to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a comparison result; and an on-time adjusting circuit to adjust on/off time of the switches based on the comparison result for outputting a control signal depending on the adjusting result. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal is low and based on the output voltage when the control signal is high. | 2013-03-14 |
20130063106 | DC-DC CONVERTER CONTROL CIRCUIT AND DC-DC CONVERTER INCLUDING SAME - A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switching elements, including a first feedback circuit to generate a first feedback voltage indicating a DC component of an inductor current of the inductor based on an output voltage of the DC-DC converter; a second feedback circuit to generate a second feedback voltage indicating an AC component of the inductor current; a synthesis circuit to add the first and second feedback voltages to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a control signal; and a driving circuit to control the switching elements. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal from the comparator is low and based on the output voltage when the control signal is high. | 2013-03-14 |
20130063107 | DC-DC CONVERTER CONTROL CIRCUIT AND DC-DC CONVERTER INCLUDING SAME - A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switches, including a first feedback circuit; a second feedback circuit; a synthesis circuit to add a first feedback voltage indicating a DC component of an inductor current based on an output current of the DC-DC converter and a second feedback voltage indicating an AC component thereof to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a comparison result; and an on-time adjusting circuit to adjust on/off time of the switches based on the comparison result for outputting a control signal depending on the adjusting result. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal is low and based on the output voltage when the control signal is high. | 2013-03-14 |
20130063108 | DC-DC CONVERTER CONTROL CIRCUIT AND DC-DC CONVERTER INCLUDING SAME - A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switching elements, including a first feedback circuit to generate a first feedback voltage indicating a DC component of an inductor current of the inductor based on an output current of the DC-DC converter; a second feedback circuit to generate a second feedback voltage indicating an AC component of the inductor current; a synthesis circuit to add the first and second feedback voltages to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a control signal; and a driving circuit to control the switching elements. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal from the comparator is low and based on the output voltage when the control signal is high. | 2013-03-14 |
20130063109 | Multiple Branch Alternative Element Power Regulation - A power regulation scheme includes a first voltage regulation portion having a first voltage regulator, a second voltage regulator, and a switching system. The first voltage regulation portion is connected in parallel with a second voltage regulation portion. The second voltage regulation portion regulates an input voltage if an open condition occurs within the first voltage regulation portion. The switching system forces the second voltage regulator to regulate the input voltage if a short condition occurs within the first voltage regulator. | 2013-03-14 |
20130063110 | FAST STARTUP ALGORITHM FOR LOW NOISE POWER MANAGEMENT - A method is provided. A low dropout regulator (LDO) is disabled during a first mode, and a first reference voltage is selected and applied to a switched-mode converter during the first mode. Also during the first mode, a first output voltage is generated by the switched-mode converter from a power supply, and a first capacitor is overcharged with the first output voltage. The LDO is then enabled during a second mode. During a first portion of a startup period for the second mode, a second capacitor is charged from the first capacitor, and a second reference voltage is selected and applied to the switched-mode converter. Then, during a second portion of the startup period for the second mode, the second capacitor is charged with the switched-mode converter. | 2013-03-14 |
20130063111 | POWER MANAGEMENT SYSTEM AND METHOD WITH ADAPTIVE NOISE CONTROL - A method is provided. A first reference voltage during an idle mode is selected, and the first reference voltage is applied to a switched-mode converter. A first output voltage is then generated by the switched-mode converter from a power supply, and a capacitor is overcharged with the first output voltage. The first output voltage is regulated to generate a second output voltage during the idle mode. Then, a second reference voltage during a quiet mode, where the second reference voltage to the buck converter. During the quiet mode, a third output voltage is generated from the switched-mode converter and from discharging the overcharged capacitor, and the third output voltage is regulated to generate the second output voltage. | 2013-03-14 |
20130063112 | CONTROLLER AND POWER CONVERTER USING THE SAME FOR CLAMPING MAXIMUM SWITCHING CURRENT OF POWER CONVERTER - A controller of a power converter is provided. The controller includes a feedback circuit, an output circuit, and a clamping circuit. The feedback circuit generates a feedback signal in accordance with output of the power converter. The output circuit generates a switching signal in accordance with the feedback signal for regulating the output of the power converter. The clamping circuit limits the feedback signal under a first level for a first load condition and limits the feedback signal under a second level for a second load condition. The clamping circuit includes a timer circuit. The timer circuit determines a slew rate of the feedback signal for increasing the feedback signal from the first level to the second level, and the second level is higher than the first level. | 2013-03-14 |
20130063113 | LOAD CURRENT SENSING CIRCUIT AND METHOD - A load current sensing circuit for sensing a DC-DC converter load current in a DC-DC converter comprising a high-side power transistor and a low-side power transistor connected in series between supply terminals and having a converter switching node therebetween coupled to an inductor to which a load is to be coupled. A first averaging stage determines a DC voltage component of the PWM signal and a second averaging stage determines a DC component of the voltage signal at the converter switching node. A comparison stage determines a difference voltage between the first averaging stage and the second averaging stage. An impedance replica stage forms a resistance which is proportional to the resistance of the series-connected power transistors. A measuring stage measures a current flowing through the impedance replica stage with the determined difference voltage applied. | 2013-03-14 |
20130063114 | CIRCUITS AND METHODS FOR CONTROLLING PWM INPUT OF DRIVER CIRCUIT - Circuits and methods for controlling Pulse Width Modulation (PWM) input of a driver circuit during transition of states are provided. The driver circuit is operative in one of a high state, a low state and a tri-state based on the PWM input. The method includes receiving a tri-state command for transition from the high state to the tri-state. A PWM output signal is enabled to transition from a high logic value to a low logic value for driving the driver circuit from the high state to the low state upon receipt of the tri-state command. The PWM output signal is enabled to transition from the low logic value to a tri-state logic value for driving the driver circuit from the low state to the tri-state upon elapse of a threshold time delay. The PWM input to the driver circuit is based on the PWM output signal. | 2013-03-14 |
20130063115 | CONSTANT-VOLTAGE POWER SUPPLY CIRCUIT - A constant-voltage power supply circuit includes a first transistor connected between a power supply terminal and an output terminal. The constant-voltage power supply circuit includes a voltage divider circuit including a first resistor having a first end connected to the output terminal and a second resistor having a first end connected to a second end of the first resistor and a second end connected to ground. The constant-voltage power supply circuit includes an output voltage control amplifier that compares the divided voltage and a reference voltage and controls a voltage of a control terminal of the first transistor. The constant-voltage power supply circuit includes a current-limiting characteristic control circuit that controls the voltage of the control terminal of the first transistor according to the divided voltage and an output current. | 2013-03-14 |
20130063116 | TRUE REVERSE CURRENT BLOCKING SYSTEM - Devices, systems and methods are provided for a switch to perform true reverse current blocking (TRCB). The device may include a PMOS switch, including a source port, a drain port, a gate port and an n-well region; an input voltage port coupled to the source port; an output voltage port coupled to the drain port; a switch control port coupled to the gate port; and comparator circuitry configured to compare an input voltage at the input voltage port with an output voltage at the output voltage port and select a maximum of the input voltage and the output voltage. The comparator circuitry may be further configured to couple the selected maximum to the n-well region. | 2013-03-14 |
20130063117 | MAXIMUM POWER POINT TRACKING METHOD - A maximum power point tracking method is provided. The method includes temporarily determining a next voltage command using voltage and power measured at current and previous time points. When an increase or decrease in voltage command is continued predetermined times or more, it is decided that the next voltage command temporarily determined to be increased is decreased or that the next voltage command temporarily determined to be decreased is increased. The output voltage of a solar cell is regulated based on the decided next voltage command. | 2013-03-14 |
20130063118 | Charge Pump System Dynamically Reconfigurable For Read And Program - A charge pump system can provide multiple regulated output levels, including several concurrently, in an arrangement that can reduce the area and power consumption of such a high voltage generation system. The charge pump system can be dynamically reconfigurable based on output requirements. When output level is low, but required for a large AC, DC load, the system is configured in parallel to share the load. When a higher output is required, such as for a programming in a non-volatile memory, the system is configured in serial to generate the desired high output level. The exemplary embodiment uses all of the pump units in each operation and, hence, is able to be optimized for smaller pump area and less power consumption, while still delivering the same pump ability as larger, more power consuming arrangements. | 2013-03-14 |
20130063119 | Direct current link circuit - A device for converting power from a floating source of DC power to a dual direct current (DC) output, the device includes: positive and negative input terminals connectible to the floating source of DC power; and positive and negative, and ground output terminals connectible to the dual DC output that may feed an inverter. The inverter may be either a two or three level inverter. A charge storage device may be connected in parallel to, and charged from, the positive and negative input terminals. A resonant circuit may be also connected between the charge storage device and the dual DC output. The resonant circuit may include an inductor connected in series with a capacitor. The charge storage device may discharge through the resonant circuit by switching through to either the negative output terminal or the positive output terminal. | 2013-03-14 |
20130063120 | POWER SWITCH RELIABILITY IN SWITCHED CAPACITOR DC-DC CONVERTER - Representative implementations of devices and techniques minimize hot carrier stress in a switched capacitor dc-dc converter. Multi-switch arrangements may be used in conjunction with a timing scheme to stage power switch operation. | 2013-03-14 |
20130063121 | SHORT-CIRCUIT PROTECTION CIRCUIT AND DC-DC CONVERTER - The short-circuit protection circuit includes a first logic circuit that outputs the first logic signal so as to turn off the fourth MOS transistor in a case where the first gate voltage signal has a value that turns on the first MOS transistor and the switching terminal has a terminal voltage between a predetermined first threshold value and the second potential. The short-circuit protection circuit includes a first detecting circuit that compares a first detected voltage between the second end of the first resistor and the first end of the third MOS transistor with a predetermined first reference voltage and outputs, in a case where the first detected voltage is closer to the second potential than the first reference voltage, a first detection signal indicating that the switching terminal and the second potential are short-circuited. | 2013-03-14 |
20130063122 | Device and Method for Protecting a Battery - A battery protection device for protecting a battery ( | 2013-03-14 |
20130063123 | SEMICONDUCTOR DEVICE - A semiconductor device includes high-side and low-side switching elements totem-pole-connected between high-voltage-side and low-voltage-side potentials; a high-side drive circuit, having high-voltage and low-voltage terminals which are connected to a floating power supply, which supplies either a voltage at the high-voltage terminal or a voltage at the low-voltage terminal for driving the high-side switching element; and a low-side drive circuit driving the low-side switching element and a reference voltage circuit generating a reference voltage between the voltages at high-voltage and low-voltage terminals of the high-side drive circuit. The reference voltage circuit supplies the reference voltage to a connection point between the high-side and low-side switching elements. The semiconductor device includes a charging switching element having a control terminal, a first terminal connected to the low-voltage terminal of the high-side drive circuit, and a grounded second terminal. | 2013-03-14 |
20130063124 | MEASUREMENT CARD - A measurement card includes a circuit board, an edge connector on a bottom edge of the circuit board, a port arranged on the circuit board, and a single-pole double-throw switch for connecting the port to either a first or a second pin of the edge connector to tests the VDDQ and VTT outputs of a memory slot. | 2013-03-14 |
20130063125 | SENSOR DEVICES AND METHODS FOR USE IN SENSING CURRENT THROUGH A CONDUCTOR - Sensor devices and related methods disclosed. One example sensor device includes a non-magnetic substrate, a coil comprising a plurality of turns wound about the substrate, the coil defining an aperture structured to receive a conductor therein; and a dielectric material positioned adjacent to the coil and at least partially within the aperture such that the dielectric material is between the coil and a conductor positioned in the aperture. | 2013-03-14 |
20130063126 | FAN DETECTING CIRCUIT - A fan detecting circuit used to detect whether a fan is connected to an electronic device, includes a connector, a control unit, a display unit, and first and second electronic switches. The connector includes a detecting pin connected to a power supply through a resistor. When the fan is not connected to the connector, the control unit receives a high level signal from the power supply, and controls the display unit to indicate the fan is not connected to the electronic device. When the fan is connected to the connector, the detecting pin of the connector is grounded through the fan, and the first and second electronic switches are turned on. The connector is grounded through the second electronic switch. The control unit receives a low level signal from the detecting pin of the connector, and controls the display unit to indicate the fan is connected to the electronic device. | 2013-03-14 |
20130063127 | NOISE REDUCTION SYSTEM AND METHOD - A system and method for measuring frequency which reduces the impact of noise. The system and method includes the steps of sampling a signal train ( | 2013-03-14 |
20130063128 | CONDUCTOR TO WHICH CURRENT DETECTION HEAD IS FIXED, AND CURRENT DETECTION HEAD USED IN MANUFACTURE OF SAME - Provided is a technique for mass-producing a conductor to which is fixed a current detection head that detects the value of current flowing in the conductor, and in which the relationship between the detection value and the current value is stabilized. The head comprises a lens, a magneto-optical element, a conductor, and a fixing member, and the lens, the magneto-optical element, and the conductor are respectively fixed to the fixing member. An optical system is formed using the current detection head such that light is guided through the lens to the magneto-optical element, and light affected by a magneto-optical effect due to the magneto-optical element is guided to the lens. All of the members contributing to current detection are fixed to the fixing member, and therefore the relative positional relationships of all the members contributing to current detection are uniquely determined, enabling conductors with little variation in current detection characteristics to be mass-produced. A shape for determining the positional relationship between the fixing member and the conductor may be formed therebetween in advance, and the positioned current detection head and conductor may be fixed to obtain the conductor. | 2013-03-14 |
20130063129 | SENSOR DEVICES AND METHODS FOR USE IN SENSING CURRENT THROUGH A CONDUCTOR - Sensor devices and related methods disclosed. One example sensor device includes a substrate comprising a plurality of bobbins, the plurality of bobbins define an aperture structured to receive a conductor therein, a coil comprising a plurality of coil turns wound about each of the plurality of bobbins, a first shield extending between each of the plurality of bobbins and the plurality of coil turns; and a second shield positioned proximate to the plurality of coil turns, opposite the first shield such that the plurality of coil turns is between the first shield and the second shield. | 2013-03-14 |
20130063130 | IMAGE FORMING SYSTEM, POWER CALCULATION METHOD, AND POWER CALCULATING APPARATUS - According to an embodiment, an image forming system includes: an image forming apparatus; a peripheral device; and a first control unit. The image forming apparatus includes a first voltage detecting unit that detects voltage of a first power source supplied by an external power source, and outputs as first voltage value; and a first current detecting unit that detects current of the first power source, and outputs as first current value. The peripheral device includes a second voltage detecting unit that detects voltage of a second power source supplied by an external power source, and outputs as second voltage value; and a second current detecting unit that detects current of the second power source and outputs as second current value. The first control unit calculates total power value of the image forming system based on: the first voltage value; first current value; second voltage value; and second current value. | 2013-03-14 |
20130063131 | SENSOR DEVICES AND METHODS FOR USE IN SENSING CURRENT THROUGH A CONDUCTOR - Sensor devices and related methods disclosed. One example sensor device includes a non-magnetic substrate defining an aperture structured to receive a conductor therein, a coil including a plurality of coil turns wound about at least a portion of the substrate, a first shield between the substrate and the plurality of coil turns, a second shield disposed proximate to the plurality of coil turns, opposite the first shield, such that the plurality of coil turns is disposed between the first shield and the second shield, and a filter element coupled to at least one of the first and second shields. | 2013-03-14 |
20130063132 | LINEAR POSITION SENSOR - In general, the disclosure is directed to techniques for determining the position of a piston within a linear actuator, such as a hydraulic cylinder, in a more cost effective and less labor-intensive fashion compared to current techniques for determining the position of a piston within a linear actuator. One or more magnets may be operably coupled to the piston, and a linear array of sensors may be disposed along an exterior length of the linear actuator. The sensors may measure the magnetic field generated by the magnet and, based on the measured magnetic field, may determine the location of the piston within the linear actuator. | 2013-03-14 |
20130063133 | POSITION SENSOR - A position sensor for a transmission mode selector lever includes a magnet and three magnetic flux detection elements that detect magnetic flux of the magnet. A determination circuit determines an operation position of the transmission mode selector lever based on output levels of detection signals generated by the magnetic flux detection elements. The magnet includes first and second magnetized regions. The first and second magnetized regions are formed so that when the magnet is moved relative to the magnetic flux detection elements along a straight line, output levels of the detection signals generated by the magnetic flux detection elements change in accordance with a proportional relationship having a first or second gradient relative to the distance of the movement. The three detection elements are spaced apart from each other on a straight line that is parallel to the first and second straight lines. | 2013-03-14 |
20130063134 | ROTARY ARC POSITION SENSOR WITH LINEAR OUTPUT - A rotary position sensor includes a member with a shaft associated with the member such that movement of the member rotates the shaft. An arc-shaped permanent magnet is coupled to a periphery of the shaft for rotation therewith. First and second adjacent magnetic field concentrators define a gap there-between. Sensor structure is disposed in the gap. Upon movement of the member causing rotation of the shaft and magnet, the concentrators and sensor structure remain stationary, with the magnet providing a magnetic pole that changes the magnetic field in the gap. The sensor structure is constructed and arranged to respond to the changes in the magnetic field to identify a position of the member. | 2013-03-14 |
20130063135 | MAGNETIC-FIELD-ANGLE MEASUREMENT DEVICE AND ROTATIONAL-ANGLE MEASUREMENT APPARATUS USING SAME - In a magnetic-field angle detection device and a rotation angle detection device in which the accuracy of the measured angle is not degraded even if the MR ratio of the tunneling magnetoresistance element is increased. In a magnetic-field-angle measurement apparatus including a magnetic-field-angle detection circuit and a magnetic sensor having a tunneling magnetoresistance element with a pinned magnetic layer, the magnetic-field-angle detection circuit has a power-supply unit that outputs a constant voltage as a bias voltage to the tunneling magnetoresistance element of the magnetic sensor and a current-detection unit that detects an output current of the tunneling magnetoresistance element. The accuracy of the measured angle of the magnetic-field angle detection device and the rotation angle detection device is improved by measuring the tunneling magnetoresistance element current while maintaining the terminal voltage of the tunneling magnetoresistance element constant with input impedance of the current-detection unit as zero. | 2013-03-14 |
20130063136 | RELATIVE ANGLE SENSING DEVICE - A relative angle sensing device that senses a relative rotation angle between first and second rotary shafts includes: a rotary component that is provided on one rotary shaft out of the first rotary shaft and the second rotary shaft, and that rotates together with the one rotary shaft; a supported component that generates a magnetic field and that is supported by the rotary component through an adhesive material; and a sensor that is provided in the other rotary shaft out of the first rotary shaft and the second rotary shaft, and that outputs a value corresponding to the magnetic field generated by the supported component. A transmitting unit is provided between the rotary component and the supported component. The transmitting unit transmits rotative force of the one rotary shaft to the supported component by direct contact with each other in a case of peeling of the adhesive material. | 2013-03-14 |
20130063137 | ROTATIONAL ANGLE DETECTION DEVICES - A rotational angle detection device may include a sensor wiring member and a motor wiring member. Each of the sensor wiring member and the motor wiring member includes a terminal body section and a connector section that are formed separately from each other and are electrically connected to each other via a connection structure. | 2013-03-14 |
20130063138 | MAGNETIC ENCODER - Provided is a magnetic encoder which includes plural rows of magnetic encoder tracks. One magnetic encoder track of the magnetic encoder tracks includes magnetic pattern magnetized thereto to generate signals of equal pitch for detection of rotation. The magnetized magnetic pattern includes N poles and S poles arranged in alternate fashion. The magnetic encoder is configured to be employed spaced through an air gap from sensors that read magnetic signals of the respective magnetic encoder tracks. The magnetic encoder track is configured such that the magnetic pattern thereof acting on position of the corresponding sensor is, under the interference of magnetism of the plural rows of magnetic encoder tracks, detected by the corresponding sensor as an equal pitch magnetic pattern. | 2013-03-14 |
20130063139 | METHOD AND ITS APPARATUS FOR INSPECTING A MAGNETIC HEAD DEVICE - An apparatus for inspecting a magnetic head device inspects an effective track width of a write track of each of magnetic head devices formed on a row bar in order to measure a two-dimensional distribution of magnetic fields generated by the magnetic head devices formed on the row bar while the apparatus is not affected by an external environment. The apparatus has a tray unit, a stage unit, a sample receiving and delivering unit, a magnetic field measuring unit and an effective track width measuring unit on a vibration isolation unit that blocks a vibration from the outside of the apparatus. The tray unit, the stage unit, the sample receiving and delivering unit, the magnetic field measuring unit, the effective track width measuring unit and the vibration isolation table are covered with a sound insulation unit that blocks noise from the outside of the apparatus. | 2013-03-14 |
20130063140 | MAGNETIC SENSOR AND CURRENT MEASURING APPARATUS - A magnetic sensor includes two sensor units with curved cores including meshing portions at front and base ends thereof and constructs a ring when the meshing portions mesh together. The meshing portions include main meshing portions that entirely overlap in a completely meshed state where the meshing portions overlap to the greatest extent. Auxiliary meshing portions that protrude inside and/or outside the ring are provided on the main meshing portions at the front and/or the base ends. In the completely meshed state, the auxiliary meshing portions do not overlap the main meshing portions or auxiliary meshing portions of the other core. In a non-completely meshed state where the main meshing portions partially do not overlap, the auxiliary meshing portions at least partially overlap the main meshing portions and/or auxiliary meshing portions of the other core. | 2013-03-14 |
20130063141 | APPARATUS AND METHOD FOR IDENTIFYING MAGNETICALLY MARKED MICRO OBJECTS - An apparatus is disclosed for identifying magnetically marked micro objects, in particular biological micro objects, preferably tumor cells. In at least one embodiment, the apparatus includes a carrier for at least one micro object; a device for applying a region with a magnetic gradient field, wherein the gradient field comprises at least one zero point; a device for applying the micro object with a high frequency magnetic field, in particular at the site of the zero point; a device for relative movement of the carrier and region to one another; a device for receiving a change in a magnetic flux through the micro object; a device for evaluating the received change in the magnetic flux and for identifying the position of the micro object; and a device for in particular automatically analyzing the micro object. | 2013-03-14 |
20130063142 | Multiple Coils for NMR Well-logging Measurements - An NMR apparatus disposed in a wellbore and having an array of two or more NMR sensors located at substantially the same axial position on the NMR apparatus and having different directional sensitivities is used to acquire an NMR signal from at least two of the two or more NMR sensors. The NMR signals are combined to obtain borehole information. The borehole information may include an azimuthal image of the formation surrounding the borehole. The azimuthal image may be a formation porosity image, a formation bound fluid image, a T2 distribution image, a T2 log mean image, a formation permeability image, or a formation fluid viscosity image. If two or more pre-amplifiers and receiver circuitry are also provided, the NMR signals may be combined prior to passing through the pre-amplifiers and receiver circuitry to improve the signal to noise ratio of the total signal from the desired sample space. | 2013-03-14 |
20130063143 | Local SAR Constrained Parallel Transmission RF Pulse in Magnetic Resonance Imaging - A method of designing a parallel transmission radio frequency (RF) pulse for a magnetic resonance imaging (MRI) system includes compressing a model for a subject to be scanned by the MRI system into a plurality of virtual observation points within the model based on comparisons of peak sensitivity to local specific absorption rate (SAR), and defining the parallel transmission RF pulse that minimizes a weighted average of local SAR values with an iterative procedure that optimizes a set of weighting factors for the plurality of virtual observation points to maximize the minimized weighted average. | 2013-03-14 |
20130063144 | MAGNETIC RESONANCE METHOD AND APPARATUS TO REDUCE ARTIFACTS IN DIFFUSION-WEIGHTED IMAGING - In a method and system for diffusion-weighted acquisition of MR signals with an image acquisition sequence that has multiple diffusion coding gradients and readout gradients to read out the MR signals, MR signal portions are generated with a desired signal coherence path and MR signal portions are generated with unwanted signal coherence paths, with predominantly the MR signal portions with the desired signal coherence path being acquired by the readout gradients by activating dephasing gradients that reduce the acquisition of MR signal portions with unwanted coherence paths. The dephasing gradients are determined under consideration of the diffusion gradients that are used and under consideration of the unwanted signal coherence paths, so that each has a dephasing gradient moment for each unwanted signal coherence path that is greater than a threshold. | 2013-03-14 |
20130063145 | APPARATUS, SYSTEMS AND METHODS FOR FACILITATING SIGNAL EXCITATION AND/OR RECEPTION IN A MAGNETIC RESONANCE SYSTEM - In accordance with certain exemplary embodiments of the present disclosure, provided herein are apparatus, systems and methods for, e.g., faciliatating signal excitation and/or reception in a magnetic resonance system, such as, e.g., a system configured for magnetic resonance imaging (MRI) and/or spectroscopy. For example, exemplary embodiments of a method for traveling wave imaging in an MRI system can include, e.g., a circular conductive structure lying in a transverse plane within the scanner bore. The exemplary structure can be concentric with the center of the scanner RF shield. The structure can be arranged to have a resonant mode at the MR frequency characterized by a current pattern which can be configured to excite and receive an exemplary waveguide mode. The exemplary current pattern can be further configured to facilitate traveling wave imaging, for example. | 2013-03-14 |
20130063146 | SYSTEM AND METHOD FOR CONTROLLING CALIBRATION AND DELAY PHASES OF PARALLEL, CONTRAST-ENHANCED MAGNETIC RESONANCE IMAGING - A system and method for performing parallel magnetic resonance angiography includes controlling operation of a magnetic gradient system and an RF system to perform a calibration data pulse sequence to begin acquiring calibration data for use in a parallel imaging reconstruction process after receiving an indication that the subject has received a dose of a contrast agent. The acquisition of the calibration data is discontinued before the contrast agent reaches a peak concentration within a region of interest (ROI) of the subject and operation of the magnetic gradient system and RF system is controlled to perform an imaging pulse sequence in accordance with a parallel imaging acquisition to begin acquiring image data from the ROI. The image data is reconstructed into an image of the ROI using the calibration data. | 2013-03-14 |
20130063147 | DECOUPLING OF MULTIPLE CHANNELS OF AN MRI RF COIL ARRAY - A radio-frequency coil assembly ( | 2013-03-14 |
20130063148 | Cryogenically Cooled Whole-Body RF Coil Array and MRI System Having Same - A whole body RF coil array module configured for cryogenic cooling for use in magnetic resonance imaging. The RF coil array may be a superconducting coil array, such as a high temperature superconducting (HTS) array. The RF coil array module provides sufficiently high signal-to-noise ratio and large field of view such that the RF coil array may be used in an MRI whole body system for diagnostic imaging of all body parts without requiring using special-purpose RF coils for different body parts. | 2013-03-14 |
20130063149 | REDUCING FLUID CAPACITANCE AND CONDUCTANCE EFFECTS ON PIEZOELECTRIC RESONATOR MEASUREMENTS - An apparatus for estimating a property of a fluid in a borehole penetrating the earth includes a piezoelectric material configured to be at least partially immersed in the fluid and embedded with a first electrode pair and a second electrode pair. An electronic unit is coupled to the first electrode pair and the second electrode pair and configured to measure motion impedance of the fluid caused by motion of the piezoelectric material by applying a first electrical stimulus to the first electrode pair and a second electrical stimulus to the second electrode pair and by receiving a first electrical signal from the first pair of electrodes and a second electrical signal from the second pair of electrodes to estimate the property. The resulting motion impedance measurement has a reduced influence from electrical properties of the fluid. | 2013-03-14 |
20130063150 | CONNECTION METHOD OF REPLACEABLE SENSORS FOR RESISTIVITY ARRAYS - An apparatus and method for conducting resistivity logging in a borehole. The apparatus may include a housing configured for fluid isolation, an electrical conductor penetrating the housing and a sealing interface. The apparatus may also include at least one of: an electrical component inside the housing and an electrode disposed on the exterior of the housing. The apparatus is configured to allow the electrical conductor to be moved, while maintaining the sealing interface, between an electrically connected state and an electrically disconnected state with at least one of: the electrical component and the electrode. The method may include using the apparatus for resistivity logging operations. | 2013-03-14 |
20130063151 | Arrangement and Method for Measurements on HV Battery - An arrangement ( | 2013-03-14 |
20130063152 | ELECTRIC LEAKAGE SENSING APPARATUS - An electric leakage sensing apparatus includes a coupling capacitor having one end connected to a DC power supply, a pulse generator that supplies a pulse to the other end of the coupling capacitor, a voltage detector that detects a voltage at the coupling capacitor charged by the pulse, an electric leakage determination part that compares the voltage detected by the voltage detector to a threshold value, and makes a determination of existence or non-existence of an electric leakage of the DC power supply based on a comparison result, and a booster circuit that applies a boosted pulse voltage to the coupling capacitor. The pulse generator converts an output voltage of the booster circuit into the pulse voltage. The voltage detector includes an offset voltage generating circuit that generates an offset voltage. | 2013-03-14 |
20130063153 | SYSTEMS AND METHODS FOR DETERMINING ELECTRICAL CONNECTIVITY | 2013-03-14 |
20130063154 | POWER SUPPLY APPARATUS - [Problem to be Solved] To prevent false determination of a fuse blowout with a fuse not blown by certainly detecting the fuse blowout. | 2013-03-14 |
20130063155 | FUEL PROPERTY DETECTION DEVICE AND METHOD FOR DETERMINING DETECTION OF PROPERTY OF FUEL - First, second, and third electrodes are exposed to a fuel passage. The third electrode defines a first gap with the first electrode and defines a second gap with the second electrode. A property detection unit detects a property of fuel according to a summation of a first capacitance of the first gap and a second capacitance of the second gap. A correct-erroneous determination unit determines whether the property detected with the property detection unit is correct or erroneous according to a ratio of the summation and the first capacitance. | 2013-03-14 |
20130063156 | AUTO-CALIBRATING PROXIMITY SENSOR FOR RETAIL DISPLAY SECURITY SYSTEM - An auto-calibrated proximity sensor used with a protected item in a retail display security system includes a metalized surface that cooperatively interacts with a printed circuit board to form a capacitive cell. A microcontroller senses changes in the frequency of the capacitive circuit if the orientation of the metalized surface changes with respect to the printed circuit board. | 2013-03-14 |
20130063157 | METHOD AND DEVICE FOR CHARACTERIZING OR MEASURING A FLOATING CAPACITANCE - The disclosure comprises: linking a first terminal of the capacitance to the mid-point of a first voltage divider bridge, applying a first voltage to a second terminal of the capacitance, maintaining a voltage of a mid-point of the first divider bridge near a reference voltage, and discharging a mid-point of a second divider bridge with a constant current. When a voltage of the mid-point of the second bridge reaches a first voltage threshold, applying a second voltage to the second terminal of the capacitance, and measuring the time for the voltage to reach a second threshold. | 2013-03-14 |
20130063158 | MICROWAVE CAVITY WITH DIELECTRIC REGION AND METHOD THEREOF - A method and apparatus for obtaining dielectric constant and other measurements of a sample, comprising an open cavity resonator; a microwave energy generator for creating a resonating microwave in the open cavity resonator; a predetermined dielectric material having a high dielectric constant in the range of 2 to 100,000 substantially filling the region in which a microwave resonates; the dielectric material adapted to receive a sample for measurement of the dielectric properties of the sample; whereby during operation the resonating microwave beam is substantially immersed in the predetermined dielectric material such that the effective electrical spot size and beam cross-section along the cylindrical axis of the resonating microwave is reduced as a function of the inverse of the square root of the predetermined dielectric material dielectric constant. The dielectric constant or loss tangent of the sample may be determined based upon the change in the cavity's resonant frequency modes. | 2013-03-14 |
20130063159 | WAVEGUIDE, METHOD OF MANUFACTURING THE SAME, AND ELECTROMAGNETIC WAVE ANALYSIS APPARATUS - Provided is a waveguide for guiding an electromagnetic wave between a first conductor layer and a second conductor layer each having a negative dielectric constant real part for the electromagnetic wave, the waveguide including a tapered structure in a part of the waveguide at which the electromagnetic wave exits or enters, in which a spatial profile of the tapered structure perpendicular to an optical axis extends to both sides with respect to the optical axis at least in one direction orthogonal to the optical axis as being closer to an opening plane at an outermost part of the tapered structure. | 2013-03-14 |
20130063160 | SENSING DEVICE, POWER RECEPTION DEVICE, POWER TRANSMISSION DEVICE, NON-CONTACT POWER TRANSMISSION SYSTEM, AND SENSING METHOD - There is provided a sensing device including a circuit including at least a coil electromagnetically coupled to an outside; a temperature detection unit for detecting a temperature of the coil; a sensing unit for measuring a Q value of the circuit; and a correction unit for correcting the Q value measured by the sensing unit based on temperature information detected by the temperature detection unit. | 2013-03-14 |
20130063161 | SENSOR DEVICES AND METHODS FOR USE IN SENSING CURRENT THROUGH A CONDUCTOR - Sensor devices and related methods disclosed. One example sensor device includes a Rogowski coil defining an aperture and a dielectric material at least partially enclosing the Rogowski coil. The dielectric material has a dielectric constant of at least about 3.5. The dielectric material is configured such that, when a conductor is at least partially inserted within the aperture, at least a portion of the dielectric material is positioned between the Rogowski coil and the conductor. | 2013-03-14 |
20130063162 | METHOD FOR EVALUATING AN ANALOG SIGNAL - In a method is provided for evaluating an analog signal, which carries data on a rotational motion, the analog signal is read in by an A-D converter for evaluation and zero crossings of the analog signal are determined. | 2013-03-14 |
20130063163 | ENVIRONMENT SENSOR - A humidity sensor according to the present examples include a sensor portion for detecting humidity in the ambient environment, and a power supply portion for applying an AC voltage to the sensor portion, wherein the sensor portion is structured so as to have an impedance that is higher than a sensor portion of a conventional humidity sensor. As a result, it is possible to reduce the amount of power consumed in the sensor portion when compared to that of a conventional humidity sensor. Doing so makes it possible to reduce the amount of electrical power consumed in the humidity sensor as a whole in the present invention, including the sensor portion, when compared to that of a conventional humidity sensor. | 2013-03-14 |