51st week of 2009 patent applcation highlights part 18 |
Patent application number | Title | Published |
20090309519 | Power tool having an illuminator - A power tool of the present teachings comprises a prime mover that drives a tool, a main switch that causes the prime mover to operate when the main switch is turned on and causes the prime mover to stop operating when the main switch is turned off, an illuminator that lights a working area of the tool, and a lighting mode selector switch for switching the lighting mode of the illuminator between a plurality of lighting modes which include a first lighting mode and a second lighting mode. When the first lighting mode is selected, the illuminator will be turned on for a first predetermined period from the point at which the main switch is turned off. When the second lighting mode is selected, the illuminator will not be turned on during the first predetermined period from the point at which the main switch is turned off. | 2009-12-17 |
20090309520 | MAGNETIC FIELD CONTROL METHOD AND APPARATUS USED IN CONJUNCTION WITH A CHARGED PARTICLE CANCER THERAPY SYSTEM - The invention comprises a charged particle beam acceleration, extraction, and/or targeting method and apparatus used in conjunction with charged particle beam radiation therapy of cancerous tumors. Novel design features of a synchrotron are described. Particularly, turning magnets, edge focusing magnets, concentrating magnetic field magnets, winding and control coils, flat surface incident magnetic field surfaces, and extraction elements are described that minimize the overall size of the synchrotron, provide a tightly controlled proton beam, directly reduce the size of required magnetic fields, directly reduces required operating power, and allow continual acceleration of protons in a synchrotron even during a process of extracting protons from the synchrotron. | 2009-12-17 |
20090309521 | Driver for MEMS device - A driver for electrically causing a MEMS device to change shape or position includes an amplifier having a first feedback loop and a second feedback loop. The first feedback loop stabilizes output voltage and the second feedback loop reduces current changes through the MEMS device to zero. | 2009-12-17 |
20090309522 | GENERATOR-BRAKE INTEGRATION TYPE ROTATING MACHINE - A generator-brake integration type rotating machine comprises an inertia disk coupled to a shaft to rotate; a rotor ring rotating around the shaft inside the inertia disk and having magnets mounted to a circumferential outer surface thereof; and a laminated yoke positioned between the inertia disk and the rotor ring, and having brake coils located at regular angular intervals on a circumferential outer surface thereof and generator coils located at regular angular intervals on a circumferential inner surface thereof. The generator coils are wound on first bobbins which project inward from the circumferential inner surface of the laminated yoke, and the brake coils are wound on second bobbins which project outward from the circumferential outer surface of the laminated yoke. The laminated yoke is fixedly coupled to a stator holder, which in turn is coupled to the shaft by way of a bearing and is fixedly coupled to a housing. | 2009-12-17 |
20090309523 | Motor driving device, and control method of motor driving device - A motor driving device includes a first power supply terminal, a second power supply terminal, a drive unit that is coupled to the first power supply terminal, the second power supply terminal, and a motor winding, a control unit that controls the drive unit, and a resistive element that is coupled between the drive unit and the first power supply terminal. The control unit makes the motor winding and the resistive element form a loop circuit when a voltage between the first power supply terminal and the second power supply terminal exceeds a predetermined value. | 2009-12-17 |
20090309524 | System and Method for Adding Voltages of Power Modules in Variable Frequency Drives - Systems and methods for providing electrical power and to downhole oil production equipment such as electrical submersible pumps, wherein the outputs of multiple power modules are individually filtered before being added together to obtain a high voltage output that is provided to the downhole equipment. In one embodiment, an electrical drive system includes multiple power modules and corresponding filters. Each of the power modules is configured to receive an input power signal and to provide a corresponding pulse width modulated or stepped intermediate signal. The signal output by each power module is individually filtered to remove at least a portion of high-frequency components in the signal. The power modules and filters are coupled together in a configuration in which the filtered signals of the power modules are added to produce an output drive signal that is used to drive equipment such as an electrical submersible pump. | 2009-12-17 |
20090309525 | DRIVE FOR MOTOR - A drive for motor that can be operated up to a high load while improving efficiency of an inverter is provided. The drive for a motor includes: a voltage conversion circuit | 2009-12-17 |
20090309526 | CONTROL CIRCUIT WITH DUAL PROGRAMMABLE FEEDBACK LOOPS FOR BLDC MOTORS - A BLDC (brushless direct current) motor system of the present invention includes a control circuit, a sequencer, a driving circuit, and a BLDC motor. The control circuit comprises a speed-feedback loop and a torque-feedback loop to control the maximum speed and the maximum torque of the BLDC motor in parallel configuration. The speed-feedback loop generates a speed-control signal. The torque-feedback loop generates a torque-control signal. A PWM circuit receives the speed-control signal and the torque-control signal to generate a PWM signal. A pulse width of the PWM signal is correlated to the level of the speed-control signal and/or the level of the torque-control signal. | 2009-12-17 |
20090309527 | METHOD AND SYSTEM FOR DYNAMIC MOTOR BRAKING - A method of dynamic motor braking is disclosed herein. The method comprises: dissipating reverse energy in a motor within motor windings during a non-current supplying period of a commutation sequence by intermittently shorting the motor windings. The motor windings are shorted by simultaneously turning on all switches that are connected to a voltage source or to ground in a three-phase bridge motor control. | 2009-12-17 |
20090309528 | Motor driving system and controlling method of the same - A plurality of current sensors are provided to correspond to a plurality of inverter circuits for driving a plurality of motor generators, respectively. Zero point adjustment of each current sensor is executed in a non-energized state recognized based on a stop of operation of the corresponding inverter circuit and when noise influence is determined to be small based on stops of operations of the other inverter circuits in the same casing. As a result, it is possible to avoid a risk of performing the zero point adjustment in a state in which an output of the current sensor is not exactly a value corresponding to zero current due to the noise influence from the other inverter circuits. In this way, it is possible to highly accurately execute the zero point adjustment of the current sensor for measuring motor driving current. | 2009-12-17 |
20090309529 | POWER BRANCHING SYSTEM AND POWER BRANCHING METHOD - Provided is a power branching system for driving a plurality of motors by use of a single servo driver, the power branching system capable of protecting each of the motors. | 2009-12-17 |
20090309530 | METHOD AND APPARATUS FOR STARTER MOTOR DIAGNOSIS AND PROGNOSIS USING PARAMETER ESTIMATION ALGORITHM - A system and method for determining the state of health of a starter motor to notify a vehicle driver of a potential starter motor failure before the failure actually occurs. The starter motor includes an armature and motor brushes each providing a resistance, and an armature coil providing an armature inductance. Further, the starter motor has a back EMF because of the starter motor being coupled to a flywheel and the vehicle engine. The system and method monitor the combined resistance of the armature and the motor brushes, the inductance of the armature and a back EMF constant of the motor, and provide a signal indicating a potential starter motor failure if any of these three values significantly deviates from nominal values. In one embodiment, the analysis of the motor resistance, armature inductance and back EMF constant is provided by a regression model to determine estimated motor parameters. | 2009-12-17 |
20090309531 | SERVO MOTOR MONITORING APPARATUS - Disclosed a servo motor monitoring apparatus including: a magnetic pole position calculating member to extract a magnetic pole position signal of the servo motor from a motor drive line connected to the servo motor; a present position signal inputting member to receive an input of a present position signal from the position detecting member attached to the servo motor; and a monitoring member to compare operations of the servo motor based on two types of signals of the magnetic pole position signal and the present position signal of the servo motor, and to output a stop instruction signal for cutting off a power supply to the servo motor when detecting disagreement. | 2009-12-17 |
20090309532 | DISPLACEMENT DETECTING METHOD, CORRECTION TABLE MAKING METHOD, MOTOR CONTROL APPARATUS, AND PROCESSING MACHINE - A displacement detecting method of the present invention includes the steps of driving a moving part | 2009-12-17 |
20090309533 | CONTROL SYSTEM AND METHOD FOR MOTOR DRIVERS - A control method for motor driver includes: outputting a first signal from the controller to the first motor driver; making the first timer start to count for a first time; returning a first feedback signal from the first motor driver to the controller; dividing a value of a first count time of the first timer by two to get a value of a first delay time, wherein the first delay time is defined as the time of transmitting signals from the controller to the first motor driver; adding the value of the first delay time to the value of the first count time of the first timer to get a first sum; and transferring the first sum to the second timer to replace a value of a count time of the second timer. | 2009-12-17 |
20090309534 | AUTOMATICALLY DETERMINING OPTIMAL PULSE DURATION FOR A STEPPER MOTOR - A system for calculating control pulse duration for optimal stepper motor performance. Duration of control pulses to a stepper motor is increased until stepper motor function begins. The duration of control pulses continues to be increased. It is determined whether stepper motor failure is detected. In response to detecting a failure, the duration of control pulses at the time of the failure is recorded. The duration of control pulses is decreased until stepper motor function is restored. The duration of control pulses continues to be decreased. It is determined whether a second failure is detected. In response to detecting a second failure, the duration of control pulses at the time of the second failure is recorded. A control pulse duration is calculated that optimizes performance of the stepper motor using recorded control pulse duration data. The calculated control pulse duration is applied to the stepper motor. | 2009-12-17 |
20090309535 | Motor control apparatus and motor control method - A first duty ratio of a drive command signal is computed by comparing a level of the drive command signal with a first threshold value at a motor controller of a blower motor apparatus. A second duty ratio of the drive command signal is computed by comparing the level of the drive command signal with a second threshold value at the motor controller. A control signal is generated based on the first duty ratio and the second duty ratio in the motor controller and is used to drive a blower motor of the blower motor apparatus. | 2009-12-17 |
20090309536 | VARIABLE VOLTAGE SUPPLY SYSTEM - Apparatus for controlling the voltage supplied to a load, comprising: | 2009-12-17 |
20090309537 | Battery-charging method and battery-charging apparatus - Disclosed is a battery-charging method and apparatus which is designed to improve charging efficiency during charging of a battery using an external power source, without increasing the number of components. The battery-charging method of the present invention comprises the steps of: forming an electric circuit which includes: an alternating-current generator operable to output alternating current, and an external power source; a diode rectifier operable to rectify the alternating current output from the alternating-current generator into a direct current by a diode; and a battery which is chargeable using an output of the alternating-current generator, which are serially connected in this order; and supplying an alternating current fed from the external power source, between the alternating-current generator and the diode rectifier (S | 2009-12-17 |
20090309538 | ENERGY STORAGE AND MANAGEMENT CIRCUIT - An energy storage and management circuit includes an energy harvester, a switch coupled to the energy harvester, a first energy storage device coupled to the switch, and a second energy storage device coupled to the switch. The first energy storage device is operable to store energy from the energy harvester. The second energy storage device is operable to charge from a leakage current of the switch. | 2009-12-17 |
20090309539 | Tamper resistant programmable battery and network tracking system - A tamper resistant programmable battery and warranty and metrics tracking network is provided having an at least one network comprising a warranty and metrics information tracking system and information storage device storing data regarding the tamper resistant programmable battery. An at least one electronics module is coupled to the tamper resistant programmable battery so as to deter removal or tampering and an at least one point of sale/point of maintenance device is in communication with the network and the tamper resistant programmable battery, whereby the tamper resistant programmable battery is enabled by the transfer of data from the at least one network to the tamper resistant programmable battery. | 2009-12-17 |
20090309540 | Method of operating a networl with a programmable battery and programming same - A method of operating a network for tracking and storing warranty information and metrics of a programmable battery and programming the programmable battery, the method comprising executing a diagnostic check of the programmable battery, storing sales or maintenance specific programming, activation, and configuration data for the programmable battery in a memory coupled to the programmable battery through at least one point of sale/point of maintenance device, searching the network for software updates and product enablement data for the programmable battery and communicating information stored in the memory to a database through the point of sale/point of maintenance device and the network. | 2009-12-17 |
20090309541 | POWER MANAGEMENT SYSTEM AND METHOD - A power management system is configured to selectively control use of power-consuming applications that are executable by the processor based at least on a prioritization of the power-consuming applications to enable powering of the electronic device by a battery for at least a requested duration of time. | 2009-12-17 |
20090309542 | Multi-input charger - A charger has a converter, a cigarette lighter adapter and a charger plug. The converter converts AC power to DC power and regulates a voltage range of the DC power to an appropriate range for charging portable electronic devices such as cell and smart phones and the like and has an output port and a plug. The cigarette lighter adapter has a cord extending from the cigarette lighter adapter and being electrically connected to the converter. The charger plug is detachably connected to the converter and has a cord extending from the charger plug and a connector being formed on the cord, corresponding to and being selectively mounted in the output port or in a socket of a computer. Therefore, a user can charge portable electronic devices in an automobile, electric socket or computer without carrying different chargers. | 2009-12-17 |
20090309543 | Battery charger stand set for motor vehicle - A battery charger stand set includes a battery charger stand, which has a top receiving open chamber and an electric charging circuit module disposed at one end of the top receiving open chamber and electrically connectable to the electric power circuit of a motor vehicle, a cell phone adapter insertable into the top receiving open chamber of the battery charger stand for electrically connecting a cell phone (PDA) to the electric charging circuit module of the battery charger stand, and a bluetooth transmitter receiver device insertable into the top receiving open chamber of the battery charger stand and electrically connectable to the electric charging circuit module for communication with an external cell phone (PDA) by means of bluetooth wireless communication technology. | 2009-12-17 |
20090309544 | METHOD AND SYSTEM FOR CELL EQUALIZATION WITH SWITCHED CHARGING SOURCES - A system and method for charging a rechargeable, or secondary, battery including a series string of cells, includes a topology of charging sources that selectively provides charging current to cells that need to be charged, but avoids overcharging cells that are already charged above a predetermined voltage threshold. Based on individual cell voltage measurements, the charging current is controlled in a manner to direct charging current to the battery cell(s) needing charge until these cells are fully charged, and by-passes battery cells that are fully charged or become fully charged. | 2009-12-17 |
20090309545 | Voltage Detecting Device Of Assembled Battery And Assembled Battery System Comprising Same - In the voltage detecting device according to the present invention, voltage detecting lines respectively extend from a plurality of voltage input terminals, a plurality of capacitative elements are respectively interposed on coupling lines each coupling two adjacent voltage detecting lines to each other, and the voltage detecting lines are connected to a voltage detecting unit. At least all the voltage detecting lines respectively disposed on the positive electrode side of the cells are each connected to ground via one or more disconnection detection resistors. The voltage detecting unit detects a disconnection on a wire between each of a plurality of voltage detecting points of the assembled battery and a plurality of voltage input terminals based on voltage inputted from each voltage detecting line. | 2009-12-17 |
20090309546 | System and Method for Charging Batteries - A method for charging a battery including the steps of providing a battery charger, connecting the battery to the battery charger, supplying a charging current to the battery from the battery charger to increase a charge of the battery, and ceasing to supply the charging current to the battery once the charge of the battery has reached a threshold value, wherein said threshold charge value is selected to correspond with a percentage of a full charge of said battery that occurs prior to substantial gassing of said battery. | 2009-12-17 |
20090309547 | CHARGING METHOD, BATTERY PACK AND CHARGER FOR BATTERY PACK - A charging method includes a constant-current charging step wherein a constant charge current is supplied to a secondary battery to be charged to a predetermined end voltage; and a constant-voltage charging step wherein the predetermined end voltage is maintained by reducing the charge current after said secondary battery is charged to the end voltage, wherein: said constant-current charging step includes the charging step to be carried out with the end voltage set to OCV which is a voltage when no current is flowing, and with a voltage of a charge terminal of said battery pack set to an overvoltage above said OCV, and said constant-voltage charging step includes the step of reducing the voltage across the charge terminals to the after the voltage across the charge terminals is increased to the overvoltage or after the charge current of the charge terminal is reduced to or below a predetermined current level. | 2009-12-17 |
20090309548 | Graphic State of Charge Indicator for a Battery Charging System and Method of Use - A graphic state of battery charge indicator is used to provide the user with a visual indication of state of battery charge, magnitude of current flow and direction of current flow by using displays such as multi-segment LCD or LED displays in the shape of a battery. The indicator is able to provide these parameters by sequencing the on/off operation of the segmented displays. A microcontroller is provided battery state data from a battery monitor and converts this information to on/off commands for the segmented displays. There may be up to 10 segmented displays in the indicator with each segment proportionally representing a percentage of the state of battery charge. State of charge is indicated by a single on display at the appropriate location in the display. Current flowing into the battery is represented by a ripple effect in the displays in the positive direction. Current flowing out of the battery is represented by a ripple effect in the display in the negative direction. | 2009-12-17 |
20090309549 | MONITORING SYSTEM FOR MONITORING LOW VOLTAGE DISCONNECTING VALUE OF SECONDARY BATTERIES AND METHOD FOR THE SAME - A monitoring system for monitoring low voltage disconnecting value of a secondary battery includes a signal collection apparatus, an analogy-digital converter, a processor, a switch, and a controller. The signal collection is connected to a secondary battery to read voltage signals of the secondary battery at regular intervals. The analogy-digital converter is connected to the signal collection apparatus to receive the voltage signals and convert the voltage signals to digital signals. The processor is connected to the analogy-digital converter to determine whether the voltage of the secondary battery reach a low voltage disconnecting value. The switch is connected to the secondary battery to supply power to a functional unit. The controller is connected to the switch and the processor to determine status of the switch according to the determined result of the processor. | 2009-12-17 |
20090309550 | Auto-rechargeable wireless computer peripheral - An auto-rechargeable wireless computer peripheral includes a wireless power supply module and a wireless receiving module. The wireless power supply module is used for transmitting an electromagnetic wave. The wireless receiving module is corresponding to the wireless power supply module, for receiving the electromagnetic wave, converting the electromagnetic wave into an electric power, and storing the electric power. When the electric power stored by the wireless receiving module is lower than a rated value, the wireless receiving module outputs a charging signal, and the wireless power supply module receives the charging signal and transmits the electromagnetic wave in response to the charging signal, so as to automatically charge the wireless receiving module. | 2009-12-17 |
20090309551 | METHOD AND SYSTEM FOR DETERMINING AND CHARGING LI-ION BATTERY IN AN INTEGRATED POWER SYSTEM - A method and apparatus of determining the state of charge and charging Li-ion batteries while the batteries remain floating on the direct current (DC) bus without the need for a dedicated charger is described. The system includes a battery, a DC generator and a converter, each electrically connected to a DC bus. A charging control algorithm may be used to monitor and control the charging current supplied to the battery. The voltage on the DC bus may be varied to help control the charging current supplied to the battery, based on the battery's internal impedance and the battery's state of charge. | 2009-12-17 |
20090309552 | POWER SOURCE SWITCHOVER APPARATUS AND METHOD - An apparatus for switching from a first power supply to a second power supply. Such an apparatus may determine which of the first and second power supplies has a greater voltage, and may power a device from the power supply having the greater voltage or charge. A single boost converter may be used regardless of which power supply is providing power. | 2009-12-17 |
20090309553 | Battery current charger - The object of the invention is a method for charging a rechargeable battery having non-liquid electrolyte, which battery has an internal resonance frequency. The charging process contains at least one charging interval performed with current pulses, the frequency of said current pulses is essentially identical with the internal resonance frequency of the battery to be charged. Following the charging interval consists of periodic current pulses optionally a second relaxation interval is inserted, in which no charging current is applied to the rechargeable battery, within which optionally a second discharging interval is applied. After the second relaxation interval the charging is performed in an interval consists of a continuous charging current, whereafter an optional first relaxation interval is inserted, within which optionally a second discharging interval is applied. This sequence of the above steps can be varied and applied repeatedly until the full charge of the battery is attained. | 2009-12-17 |
20090309554 | Circuit for a power supply unit for generating a DC voltage - A circuit is disclosed for a power supply unit for generating a DC voltage, the power supply unit having a current transformer, a rectifier, a series circuit including a first blocking diode and a charging capacitor, an electronic switch which is in parallel with the current transformer, a comparator, a voltage reference circuit for the comparator. In at least one embodiment, the circuit includes a circuit for monitoring the voltage across the charging capacitor. The comparator is used to control the electronic switch on the basis of the voltage across the charging capacitor in relation to the voltage which is generated by the voltage reference circuit and is applied to the comparator. In at least one embodiment, provision is made of a tap which is located between the rectifier and the first blocking diode and at which the circuit for monitoring the voltage across the charging capacitor is located. The circuit is in the form of an RC combination having a second blocking diode connected in series. | 2009-12-17 |
20090309555 | ELECTRICITY EFFICIENCY IMPROVING APPARATUS - A system and method for improving the electrical efficiency of an electrical load are provided. In an embodiment, a device is coupled to a load and its power source via an electrical conductor. The device optimizes the power delivered from the power source to the load by compensating or removing distortions in the matter wave of the electrical energy delivered from the power source. In some embodiments, the device employs infrared radiating materials that surround selected areas of the conductor. The infrared radiation may be of a wavelength and frequency that help restore the matter waves of the electrical energy and increase power factor of the load. Additionally, the device can be configured to modify the matter wave properties of the conductor itself to minimize its effects. For example, the infrared radiation emitted from the device may provide destructively interference energy that reduces vibrations of atoms inside the conductor. | 2009-12-17 |
20090309556 | DEVICE-UNDER-TEST POWER MANAGEMENT - One embodiment of the present invention includes a system for managing power to a plurality of devices-under-test (DUTs). The system comprises a DUT test system configured to perform at least one test associated with operation of the DUTs and to monitor current associated the at least one test of the plurality of DUTs. The DUT test system can communicate an instruction to a subset of the plurality of DUTs to cancel the at least one test if the monitored current is greater than a predetermined threshold. Each of the plurality of DUTs can comprise restart logic configured to restart the at least one test of the subset of the plurality of DUTs after being cancelled in response to the instruction. | 2009-12-17 |
20090309557 | CONTROL CIRCUIT OF DC-DC CONVERTER, DC-DC CONVERTER AND CONTROL METHOD OF DC-DC CONVERTER - A DC-DC converter or the like capable of generating a stable output voltage is provided. A control circuit | 2009-12-17 |
20090309558 | RF ADAPTER FOR FIELD DEVICE WITH VARIABLE VOLTAGE DROP - A wireless adapter for use in a two-wire process control loop includes wireless communication circuitry and first and second terminals configured to couple in series with the two-wire process control loop. A regulator having a regulated input is coupled to the first terminal and an output. A shunt is coupled to the output of the regulator and is configured to provide power to the wireless communication circuitry. A feedback circuit is configured to control current flowing from the regulator to the shunt as a function of a loop current flowing through the two-wire process control loop. | 2009-12-17 |
20090309559 | AUTOMATICALLY CONFIGURABLE DUAL REGULATOR TYPE CIRCUITS AND METHODS - Automatically configurable dual regulator type circuits and methods are provided. On embodiment of the invention includes an automatically configurable dual regulator type circuit. The circuit comprises a high-side switching device (HS-SD) coupled to a low-side switching device (LS-SD) at an output node. The circuit further comprises a control logic device that turns on the HS-SD to provide an output current to a user selected circuit configuration through the output node, turns off the HS-SD after a voltage fed back from an output terminal of the user selected circuit configuration exceeds a first threshold and sets a regulator type configuration mode based on the presence or absence of a flyback period at the output node after the HS-SD has been turned off. | 2009-12-17 |
20090309560 | Remote Power Controller with Power Sharing Circuit - A direct current (DC) remote power controller for remotely controlling DC power between a DC power source and a DC load, comprises: a current sensor for sensing the level of current that the power source supplies to the load and generating a current feedback signal representative of the sensed current level; a current limit controller that compares the current feedback signal to a reference current level and generates a current regulation signal representative of the value of sensed current level above the reference current level; a current limiting device that is responsive to the current regulation signal to limit load current to the reference current level up to a first predetermined level of potential difference across the current limiting device; a load resistance; and a switched-mode DC-to-DC converter in parallel with the current limiting device that senses potential difference across the current limiting device and diverts a portion of the load current from the current limiting device through the load resistance above the first predetermined level of potential difference to reduce power dissipation of the current limiting device and maintain the load current at the reference current level. | 2009-12-17 |
20090309561 | DUAL MODE TRANSIENT RECOVERY CONTROL METHOD OF DC-DC CONVERTERS - A dual mode transient recovery control method and system is proposed, which is designed for use with a direct-current (DC) power output unit, such as a DC-DC converter, for fast transient recovery of DC output power by switching the DC-DC converter to operate between a hysteretic mode and a PWM (Pulse Width Modulation) mode. The proposed control method and system is characterized by the use of a dual-threshold scheme to compare the output voltage. This feature may discharge the transient output voltage, raised by the over-shoot, to the steady state by switching to the discharging mode, and similarly charge the transient output voltage, dropped by the under-shoot, to the steady state by switching to the charging mode. This mechanism may allow DC-DC converters with higher slew rate to make transient ripples of output voltage to return to steady state more quickly, and additionally allow a better level of noise immunity. | 2009-12-17 |
20090309562 | POWER REGULATOR - A power regulator for converting an input voltage to an output voltage includes a pass device, a reference signal circuit and an error amplifier. The pass device receives the input voltage and provides the output voltage at an output terminal of the power regulator. The reference signal circuit coupled to the output terminal is powered by the output voltage to provide a reference signal. The error amplifier coupled to the pass device is powered by the output voltage to compare the reference signal with a feedback signal indicative of the output voltage. The error amplifier can generate a control signal according to a result of the comparison to drive the pass device. | 2009-12-17 |
20090309563 | REFERENCE VOLTAGE GENERATING CIRCUIT AND DC-DC CONVERTER INCLUDING THE SAME - A reference voltage generator includes a reference voltage generating circuit that outputs a second reference voltage; and a DA converter that DA-converts a digital signal from outside in accordance with the second reference voltage. The circuit includes a first constant voltage circuit that operates on a DC voltage and outputs a first constant voltage; a second voltage divider that divides the first constant voltage at a second dividing ratio and outputs a second partial voltage; an output transistor that operates on the DC voltage and allows current to flow therethrough according to a signal applied to its control electrode; a current-voltage converter that converts the current from the output transistor into a voltage and outputs the voltage (second reference voltage); and a second op-amplifier that operates on the first constant voltage and controls the output transistor so that the second reference voltage equals to the second partial voltage. | 2009-12-17 |
20090309564 | METHOD FOR CONTROLLING A VOLTAGE REGULATOR, IN PARTICULAR A CONVERTER OF THE MULTIPHASE INTERLEAVING TYPE AND CORRESPONDING CONTROLLER - An embodiment of method is described for controlling a voltage regulator of the type comprising at least one modulator of the PWM type, the method comprising:
| 2009-12-17 |
20090309565 | BOOST CIRCUIT AND POWER SUPPLY DEVICE - The objective of this invention is to provide a boost circuit that reduces power consumption and prevents malfunctioning when the input voltage becomes greater than a target voltage for the output voltage. Control circuit module | 2009-12-17 |
20090309566 | DC/DC converter circuit and controller thereof - The present invention uses a multi-phase oscillator or a mono-stable circuit in order to charge the output instantly or within an acceptable time period when a charge pump circuit is in a PFM mode and an output voltage is below a preset voltage level. Therefore, the present invention avoids the problem of charging the output in an unacceptable time delay thereby achieving the advantage of reducing the voltage ripple at the output. | 2009-12-17 |
20090309567 | MONITORING AND CONTROL OF POWER CONVERTERS - A digital controller configured to inject a signal into a digital feedback path that facilitates regulation of a power converter and measure the corresponding phase, gain, or frequency. The digital controller may also include an adaptive tuning controller for adjusting power converter operating attributes based in part on the measurements. In an exemplary embodiment, the adaptive tuning controller uses the phase, gain, and/or frequency measurements to adjust the digital feedback signal. In an exemplary embodiment, the adaptive tuning controller compares the operating measurements with desired values and generates adjusted operating attributes. In accordance with an exemplary embodiment, the monitoring and adjusting of the digital feedback signal occurs while the digital controller is regulating a power signal in the power converter. | 2009-12-17 |
20090309568 | Power supply circuit and control method of the same - A power supply circuit is provided which includes a first booster to boost a power supply voltage supplied from a battery and generate a first boosted voltage, a second booster to boost the power supply voltage at a higher multiplication factor than the first booster and generate a second boosted voltage, a power supply selection circuit to output the first boosted voltage or the second boosted voltage, a first smoothing capacitor placed at an output end of the power supply selection circuit, and a second smoothing capacitor placed at an output end of the second booster. | 2009-12-17 |
20090309569 | MULTI-STABLE ELECTRONIC CIRCUIT STATE CONTROL - Apparatus and methods of controlling operating states of multi-stable electronic circuits are disclosed. In one aspect, an apparatus includes a bandgap reference circuit having an operating state and a latched off state. The bandgap reference circuit includes an amplifier to provide a bandgap reference voltage when the bandgap reference circuit is in the operating state. A state control circuit is also included and is coupled to sense an output signal of the bandgap reference circuit. The state control circuit is also coupled to provide a drive signal to an input of the amplifier in response to the sensed output signal. The drive signal is coupled to cause the bandgap reference circuit to avoid the latched off state. | 2009-12-17 |
20090309570 | METHODS AND SYSTEMS FOR MANAGING FACILITY POWER AND COOLING - A method and corresponding apparatus provide a determination of available power capacity of a phase of a power supply in a data center rack. The method includes metering the power of a power supply and calculating an average peak power draw per phase of the power supply. Using average peak power draw per phase of the power supply and the expected power draw data corresponding to data center equipment coupled to the power supply, the available power capacity can be calculated on a per phase of the power supply. A method and corresponding apparatus for managing data center equipment may use the phase based available power capacity calculations to determine the optimal placement of new data center equipment within a data center configuration. | 2009-12-17 |
20090309571 | PARTICULATE MATTER SENSOR - A particulate matter sensor ( | 2009-12-17 |
20090309572 | APPARATUS AND METHOD FOR CURRENT TRANSFORMER ADAPTATION - An apparatus and method for current transformer adaptation for extending a distance between a current sensing location, having a load current carrying load conductor, and a current measuring location having a measuring instrument. A first current transformer adapted to being connected to the load conductor is used to sense the load current. Typically the distanced between the first current transformer and the current measuring instrument is limited by a load burden rating of the first current transformer and a pre-determined resistive load per unit length of an instrument conductor connecting the first current transformer and the current measuring instrument. The present invention provides for the distance to be extended by connecting a second current transformer, having greater load burden rating than the first current transformer, to a secondary winding of the first current transformer and connecting the instrument conductor between the second current transformer and the current measuring instrument. | 2009-12-17 |
20090309573 | DETERMINING OUTPUT VOLTAGE OR CURRENT IN AN SMPS - An apparatus and method for determining an output voltage or output current in an SMPS circuit 10 are described. The SMPS circuit comprises a switching element | 2009-12-17 |
20090309574 | DEVICE FOR COUNTING OSCILLATIONS OF AN OSCILLATING TEMPORAL SIGNAL - A device for counting oscillations of an oscillating temporal signal. The device comprises means for counting all the alternate crossings of a positive threshold value and of a negative threshold value by a monitored time signal. | 2009-12-17 |
20090309575 | MULTI-OUTPUT DETERMINATION CIRCUIT - An embodiment of the present invention provides a multi-output determination circuit that determines whether or not any one input voltage of a plurality of input voltages is equal to or higher than an upper-limit voltage value. This multi-output determination circuit includes a first diode-OR, upper-limit reference voltage generation means, and a first comparator. The first diode-OR includes a plurality of first diodes whose anodes are each connected to a respective one of the plurality of input voltages and whose cathodes are connected in common. The upper-limit reference voltage generation means has a first resistor, the first diode, and a second resistor that are connected in series between first and second power supply potentials, and generates an upper-limit reference voltage based on the voltage of the cathode of the first diode. The first comparator compares the output voltage of the first diode-OR with the upper-limit reference voltage. | 2009-12-17 |
20090309576 | Speed Sensor Pick-Up for Fluid Device - A speed pick-up ring includes a main body having a plurality of targets and defining a plurality of notches. Each notch is disposed between adjacent targets. Each notch includes a base wall, a first sidewall and an oppositely disposed second sidewall. The base wall includes a convex portion. A fluid device includes a housing and a variable reluctance speed sensor engaged to the housing. The fluid device further includes a speed pick-up ring disposed within the housing. The speed pick-up ring includes a main body having a plurality of targets and defining a plurality of notches. Each notch is disposed between adjacent targets. Each notch includes a base wall, a first sidewall that is generally concave and an oppositely disposed second sidewall that is generally concave. The base wall includes a convex portion. | 2009-12-17 |
20090309577 | High temperature speed sensor - A gas turbine shaft speed sensor including a sensing coil comprised of a central conducting wire, the sensor and conducting wire is surrounded by a layer of mineral insulator and the mineral insulator is surrounded by a metallic, non magnetic, sheath. A sensing coil formed with this construction allows the high operating temperatures and is robust. | 2009-12-17 |
20090309578 | Sensor inductors, sensors for monitoring movements and positioning, apparatus, systems and methods therefore - A generally planar shaped inductor is disclosed that is particularly adaptable for use in motion or position sensors. One inductor can function as a signal input unit and another as a pick up unit in an arrangement wherein both inductors are placed in a generally parallel juxtaposition for flux flow there between. A movable armature is located between the inductors to control the amount of flux transmission between inductors. The position of the armature relative to the inductors controls the output signal generated by the pickup inductor that are adapted to be converted into indications of displacements. | 2009-12-17 |
20090309579 | Sensor inductors, sensors for monitoring movements and positioning, apparatus, systems and methods therefore - A generally planar shaped inductor is disclosed that is particularly adaptable for use in motion or position sensors. One inductor can function as a signal input unit and another as a pick up unit in an arrangement wherein both inductors are placed in a generally parallel juxtaposition for flux flow there between. A movable armature is located between the inductors to control the amount of flux transmission between inductors. The position of the armature relative to the inductors controls the output signal generated by the pickup inductor that are adapted to be converted into indications of displacements. | 2009-12-17 |
20090309580 | AMR ARRAY MAGNETIC DESIGN FOR IMPROVED SENSOR FLEXIBILITY AND IMPROVED AIR GAP PERFORMANCE - An AMR array magnetic position sensing system for improved sensor flexibility and improved air gap performance is disclosed. A pair of magnets can be enclosed in a magnet carrier that moves along a path and located above an array of AMR position sensors. The magnets are generally magnetized through the length of the magnets, and the magnets are positioned in the carrier such that an angle between the magnets exists in a manner similar to an angle made by AMR runners on a surface of the AMR positions sensors to create magnetic flux lines thereof. The AMR position sensors come into contact with the uniform magnetic flux lines to sense a change in linear and angular position associated with the magnet carrier. The output signal generated by the AMR position sensors have less susceptibility to variations in air gap as the angles of the magnetic flux lines generated by the magnets do note change with respect to air gap variation. | 2009-12-17 |
20090309581 | Method and System for Adjusting the Sensitivity of a Magnetoresistive Sensor - The system for measuring high currents or magnetic fields using a magnetoresistive sensor ( | 2009-12-17 |
20090309582 | APPARATUS AND METHOD FOR DETECTING POSITION OF MAGNETIC ELEMENT - An exemplary apparatus for detecting whether a magnetic element is mounted at a correct position on a retaining member is provided. The apparatus includes a holder, a magnetoresistive sensor, and a processor. The magnetoresistive sensor is held by the holder and capable of sensing a present magnetic flux from the magnetic element to the magnetoresistive sensor. The processor is electrically connected to the magnetoresistive sensor and has a predetermined reference magnetic flux stored information therein, configured for obtaining the present magnetic flux and comparing the present magnetic flux with the reference magnetic flux information, thereby detecting whether a magnetic element is mounted at a correct position on a retaining member. | 2009-12-17 |
20090309583 | Rotation Angle Sensor and Rotation Angle Sensor System - Rotation angle sensor and rotation angle sensor system for determining the angle of rotation of a shaft which can rotate at its shaft end, having a housing, having a shaft mount which is mounted on the housing such that it can rotate, having at least one signal transducer arranged on the shaft mount and having at least one signal receiver which is arranged on the housing and interacts with the signal transducer, wherein the shaft mount is designed in a manner such that the housing is attached only by means of the shaft mount at the shaft end. | 2009-12-17 |
20090309584 | Rotary velocity sensor and rotary position and velocity sensor - A rotary velocity sensor includes a stator having a coil and a rotor having a permanent magnet. The rotor is substantially coaxially aligned with the central longitudinal axis of the stator, surrounds the coil, and is rotatable with respect to the stator about the axis. A rotary position and velocity sensor includes a non-magnetic stator having a magnetosensitive device and having at least one coil and includes a non-magnetic rotor having at least one permanent magnet. The magnetosensitive device has a sensing surface with a normal axis aligned substantially perpendicular to the stator axis. The at-least-one coil has a central coil axis aligned substantially perpendicular to the stator axis. The rotor is substantially coaxially aligned with the central longitudinal axis of the stator, surrounds the at-least-one coil, and is rotatable with respect to the stator about the stator axis. | 2009-12-17 |
20090309585 | ROTATION ANGLE DETECTION DEVICE - A rotation angle detection device comprises a rotor ( | 2009-12-17 |
20090309586 | Gobo Wheel Location Drive - A gobo wheel with automatic detection system that automatically detects a rotational position of the gobo. The rotational position can be detected by a magnetic marking system. Each of the gobos can be randomly placed within the holder. the position of the gobos can be automatically determined during a start up routine for example, and then those positions can be stored and used for later determination of a position. | 2009-12-17 |
20090309587 | Techniques for Electrically Characterizing Tunnel Junction Film Stacks with Little or no Processing - Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting. | 2009-12-17 |
20090309588 | SYSTEM AND METHODS FOR ACTUATION ON MAGNETORESISTIVE SENSORS - The present invention relates to systems and methods for magnetic actuation of particles from and toward the surface of a sensor with a magneto-resistive element. The orientation of magnetic fields and arrangement of magnetic field generating means with respect to the sensor maintains or restores the sensitivity of the magneto-resistive element after actuation. | 2009-12-17 |
20090309589 | DEVICE FOR THE IN-LINE DETECTION OF SURFACE DEFECTS IN A ROLLED PRODUCT IN A ROLLING STAND AND RELATIVE METHOD | 2009-12-17 |
20090309590 | MAGNETIC SENSOR AND METHOD OF MANUFACTURING THEREOF - The present invention relates to a magnetic sensor with which magnetic characteristics are made extremely stable by consideration of an area of contact of a base layer of a magnetic substance and a semiconductor substrate. On a semiconductor substrate a plurality of Hall elements are embedded so as to be coplanar to a top surface of the semiconductor substrate while being mutually spaced apart by a predetermined distance, and above the Hall elements and the semiconductor substrate, a base layer, having a coefficient of thermal expansion differing from that of the Hall elements and partially covers a region of each Hall element, is formed via a protective layer, and a magnetic flux concentrator, having an area larger than the base layer and with magnetic amplification, is formed on the base layer. | 2009-12-17 |
20090309591 | DISPLACED ELECTRODE AMPLIFIER - A displaced electrode amplifier (“DEA”) for measuring signals from high impedance sources. The amplifier may include an operational amplifier (“op-amp”) configured as a unity gain buffer, with a feedback path to the non-inverting input to at least partly compensate for a parasitic input shunt impedance. In cases where the device is to measure AC signals in high ambient temperatures, the non-inverting input may be coupled via a large resistance to a ground reference that is driven with a second feedback signal to magnify the effective value of the large resistance. Where a differential configuration is desired, one or more tuning resistors may be provided to match responses of different input buffer stages, thereby maximizing the common mode rejection. The disclosed amplifier is suitable for use in oil-based mud resistivity imaging tools but is also suitable for other applications. | 2009-12-17 |
20090309592 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - A magnetic resonance imaging apparatus includes a fluid image data acquisition unit and a flow velocity measuring unit. The a fluid image data acquisition unit acquires fluid image data, corresponding to mutually different inversion times, by imaging with applying at least three inversion recovery pulses having the inversion times. The flow velocity measuring unit obtains a flow velocity of fluid based on time variation of a signal intensity depending on the inversion times at each of plural positions and a distance between the plural positions. | 2009-12-17 |
20090309593 | MICELLE SOLUTION TO REDUCE DIELECTRIC RESONANCE EFFECTS IN MRI PHANTOMS - A micelle solution for use in MRI phantoms ( | 2009-12-17 |
20090309594 | MAGNETIC RESONANCE IMAGING METHOD AND APPARATUS USING A CIRCULARLY POLARIZED RF RESONATOR DETECTING RIGHT AND LEFT CIRCULARLY POLARIZED COMPONENTS OF MR SIGNALS - In an MR imaging method and apparatus which MR images with improved signal intensity, improved signal-noise ratio, improved contrast and improved image homogeneity can be acquired, the polarization state of the magnetic field of the RF pulses radiated into the measurement subject and of the resonance signals emitted by the measurement subject are distorted by the interaction with electrically-active materials of the measurement subject. In the transmission branch of the RF system the RF pulses emitted by a transmission coil are pre-distorted with regard to their polarization state. The sensitivity of the reception branch is optimized such that it is capable of detecting resonance signals independent of their polarization state. | 2009-12-17 |
20090309595 | MAGNETIC RESONANCE IMAGING METHOD AND APPARATUS - In an imaging according to the step moving method, a slice imaging condition with respect to each station is optimized, thereby enabling an efficient imaging. A controller of an MRI apparatus displays positioning frames | 2009-12-17 |
20090309596 | MAGNETIC RESONANCE SYSTEM AND OPERATING METHOD WITH COMPENSATION OF SECOND-ORDER MAXWELL TERMS - A magnetic resonance system has a basic magnet system that generates a temporally static, spatially homogeneous basic magnetic field in an examination volume of the magnetic resonance system. At least one radio-frequency system is operated to excite nuclear spins in an examination subject in the examination volume to magnetic resonance, and to detect magnetic resonance signals from the examination subject. An overlay system generates overlay fields in the examination volume. The overlay system has at least one system of the first order and one system of the second order. The system of the first order generates fields that, to a first approximation, exhibit a spatial dependency of the first order. The system of the second order generates fields that, to a first approximation, exhibit a spatial dependency of the second order. A desired gradient and a correction volume are provided to a control device of the magnetic resonance system. The control device weights deviation of the amplitude of the complete field from the desired amplitude with a weighting function that is spatially dependent within the correction volume in order to check whether a minimum condition is satisfied. The control device operates the radio-frequency system with an operating frequency and controls the systems of the first and second order such that the deviation exhibits a spatial dependency of the second order and satisfies the minimum condition within the correction volume. | 2009-12-17 |
20090309597 | Superparamagnetic Nanoparticles Based on Iron Oxides with Modified Surface, Method of Their Preparation and Application - The subject of the invention is superparamagnetic nanoparticle probes based on iron oxides, to advantage magnetite or maghemite, with modified surface, coated with mono-, di- or polysaccharides from the group including D-arabinose, D-glucose, D-galactose, D-mannose, lactose, maltose, dextrans and dextrins, or with amino acids or poly(amino acid)s from the group including alanine, glycine, glutamine, asparagine, histidine, arginine, L-lysine, aspartic and glutamic acid or with synthetic polymers based on (meth)acrylic acid and their derivatives selected from the group containing poly(N,N-dimethylacrylamide), poly(N,N-dimethylmethacrylamide), poly(N,N-diethylacrylamide), poly(N,N-diethylmethacrylamide), poly(N-isopropylacrylamide), poly(N-isopropylmethacrylamide), which form a colloid consisting of particles with narrow distribution with polydispersity index smaller than 1.3, the average size of which amounts to 0.5-30 nm, to advantage 1-10 nm, the iron content is 70-99.9 wt. %, to advantage 90 wt. %, the modification agent content 0.1-30 wt. %, to advantage 10 wt. %. | 2009-12-17 |
20090309598 | APPARATUS FOR SUPPLYING STABLE, ISOLATED DC POWER AND METHOD OF MAKING SAME - A power supply having an input, wherein the power supply includes a multi-winding transformer having an input and a plurality of outputs, and a plurality of rectifiers to provide a plurality of DC output voltages, wherein each rectifier is coupled to an output of the multi-winding transformer. The power supply further includes a regulator circuit coupled between the transformer input and one of the transformer outputs, and configured to regulate an input voltage to the multi-winding transformer to minimize a variance of each rectifier DC output voltage. | 2009-12-17 |
20090309599 | Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources - A method for electromagnetic exploration includes imparting a first electromagnetic signal into subsurface formations from a first location and imparting a second electromagnetic signal into the formations from a second location substantially contemporaneously with imparting the first electromagnetic signal. The first and second electromagnetic signals are substantially uncorrelated with each other. A combined electromagnetic response of the formations to the first and second imparted electromagnetic signals is detected at a third location. A response of the formations to each of the first and the second imparted signals is determined from the detected response. | 2009-12-17 |
20090309600 | MEASUREMENT OF FORMATION PARAMETERS USING ROTATING DIRECTIONAL EM ANTENNA - A logging tool and method to make subsurface measurements is disclosed, wherein the tool is placed within a borehole penetrating a formation. The tool has a transmitter antenna and a receiver antenna spaced apart along a longitudinal axis of the tool, and at least one of the transmitter or receiver antennas has a dipole moment that is non-coaxial with the longitudinal axis of the tool. The at least one non-coaxial antenna can rotate relative to the other antenna. Energy is transmitted from the transmitter antenna and a signal associated with the transmitted energy is measured at the receiver antenna while the at least one non-coaxial antenna rotates relative to the other antenna. | 2009-12-17 |
20090309601 | ELECTROMAGNETIC LOGGING APPARATUS AND METHOD - An apparatus for investigating a geological formation GF surrounding a borehole WB, comprises a logging tool TL moveable through the borehole, an electromagnetic probe | 2009-12-17 |
20090309602 | SEQUENTIAL RESISTIVITY IMAGING WITH ASYMMETRIC ELECTRODE ARRAYS - A method for providing a symmetric resistivity image of a formation using at least one asymmetric sensor, includes: collecting a plurality of resistivity images, each of the images collected from the at least one asymmetric sensor disposed on a pad; assembling the plurality of resistivity images about a selected reference point; and processing the plurality of resistivity images to provide a symmetric image of the formation. A computer program product and an instrument are disclosed. | 2009-12-17 |
20090309603 | Hydrogen Quantity Sensor and Hydrogen Storage Device Using the Same - It is an object of the present invention to provide a hydrogen quantity sensor that can directly measure hydrogen contained in a hydrogen storage device with simple and easy means. The hydrogen quantity sensor comprises a detecting electrode | 2009-12-17 |
20090309604 | Electrostatic monitoring system - An electrostatic monitoring system for detecting a risk of electrostatic discharge is used to detect conditions under which electrostatic discharge is likely, at distances sufficient to provide the time needed to take corrective action and mitigate any harmful effects. The system monitors electrostatic discharge conditions in the order of a few meters away, and preferably determines the direction of maximum hazard. By the invention, personnel can be screened upon entering a vulnerable area, sensitive equipment can be protected by placing sensors on the equipment to detect the risk of electrostatic discharge due to the local static potential and to preemptively turn off the equipment, and wearable sensors can be installed in clothing of personnel working in environments with high electrostatic hazard to protect both personnel and equipment. | 2009-12-17 |
20090309605 | ELECTRIC POTENTIAL SENSOR - The present invention provides an electric potential sensor for the measurement of potentials non-invasively. The sensor comprises at least one detection electrode arranged for capacitive coupling with a sample under test and for generating a measurement signal, and a sensor amplifier adapted to receive the measurement signal as input and to supply an amplified detection signal as output. Input impedance enhancing means are included for providing a high input impedance to the sensor amplifier for increasing the sensitivity of the electrode to reduced electric potentials, and a discrete pre-amplifier stage is arranged to co-operate with the sensor amplifier to reduce the input capacitance of the amplifier. | 2009-12-17 |
20090309606 | SYSTEM AND METHOD FOR TESTING LIGHT-EMITTING DEVICES - A method for testing light-emitting devices in a batch-wise, associated with a system for the same purpose, comprises the steps of: preparing the light-emitting devices on a moving carrier unit in a manner of aligning a predetermined longitudinal direction of the light-emitting devices with a predetermined transportation direction of the moving carrier unit, each of the light-emitting devices further having plural light-emitting elements; transporting orderly the light-emitting devices to pass a test area on a base of the system, in which the base energizes only the light-emitting elements within the test area; and, a solar cell module detecting continuously the energized light-emitting elements within the test area and further forming signals with respect to photo energy received in the test area. | 2009-12-17 |
20090309607 | METHOD AND CIRCUIT ARRANGEMENT FOR DETECTING THE STATE OF A LOAD DEVICE WHICH CAN BE CONNECTED TO A SWITCHING CONNECTION - A method for detecting the state of a load device which can be connected to a switching connection, wherein the switching connection can be coupled to, and decoupled from, a predefined switching potential. A voltage drop across the switching connection is used as a basis for detecting whether the load device is connected to the switching connection, the load device is not connected to the switching connection or there is a short circuit between the switching connection and a first or a second switching potential. An additional current source is connected to the switching connection at the same time as the switching connection is decoupled from the predefined switching potential. | 2009-12-17 |
20090309608 | Diagnostic methods for self-healing cables - Self-healing diagnostics methods are disclosed. One of the methods involves determining whether a self-healing cable has at least one self-healed region and includes transmitting an outgoing test signal down the self-healing cable and measuring the return test signal. The method also includes comparing the measured return test signal to an ideal return signal associated with the same type of self-healing cable that has no self-healed regions to determine whether the self-healing cable has at least one self-healed region. A database of return signals based on different types of self-healed regions formed by different types of damaging conditions is also used to characterize the return test signal and thus the type of self-healed region present in the cable. | 2009-12-17 |
20090309609 | TESTABLE INTEGRATED CIRCUIT, SYSTEM IN PACKAGE AND TEST INSTRUCTION SET - An integrated circuit die comprises a plurality of interconnects including a first test data input ( | 2009-12-17 |
20090309610 | ELECTRICAL SAFETY DEVICES - A device for detecting the presence or absence of a potential difference across two conductive elements, including means to provide an indication of a potential difference between said two conductive elements, the means having a test connection between the two elements comprising two spaced conductive lines in parallel, each line having self testing means including detecting means connected across said two lines and means to apply a test voltage through said two lines to test the integrity of the lines and their connection to the conductive elements with indicator means to provide an alarm signal should the detector indicate an abnormal response in said test voltage indicative of a fault in the line connections and/or one or other of the lines. | 2009-12-17 |
20090309611 | CABLE DETECTOR - A cable detector includes one or more peak detectors that detect when a termination impedance is missing from the output of a line driver. A peak detection signal is asserted when signals on a transmission line exceed a threshold level. A fault condition is asserted when the peak detection signal is asserted for a sufficient length of time to indicate that an actual fault is detected. The time period required for detecting a lost or missing line termination is longer than the time periods for any one of the pathological conditions to avoid a false positive detection. After the peak detection signal is de-asserted, the fault condition will be maintained until another sufficient length of time has expired without a peak detection. | 2009-12-17 |
20090309612 | METHOD AND APPARATUS FOR DETERMINING CIRCULAR CHARACTERISTIC - A method and a system for determining a circular characteristic for distance protection of a three-phase electric line, the system comprising means for detecting a fault on the electric line, means for identifying a faulted phase or phases of the electric line, means for determining, at a measuring point, a first fault loop impedance by using voltage(s) of the faulted phase(s), a second fault loop impedance by using a polarization voltage and a third fault loop impedance by using predetermined line parameters, and means for determining a radius and midpoint of the circular characteristic. | 2009-12-17 |
20090309613 | Anti-Capture Method and Apparatus for Micromachined Devices - A MEMS device has a movable beam, a differential capacitor with a movable electrode that moves in response to the displacement of the movable beam and that is disposed between two stationary electrodes, and a voltage circuit for applying a first voltage to the first stationary electrode, second voltage to the second stationary electrode, and a third voltage to the movable electrode. The MEMS device also has a monitor operably coupled with the movable beam to monitor the displacement of the movable beam. In some embodiments, the monitor may monitor the distance between the movable electrode and at least one of the stationary electrodes. The MEMS device further has a voltage reducing circuit operatively coupled with the monitor, the movable electrode, and the stationary electrodes. The voltage reducing circuit reduces the differential between the third voltage and the voltages on the stationary electrodes when the monitor detects that the displacement of the movable beam is greater than or equal to a threshold value. | 2009-12-17 |
20090309614 | TECHNIQUES AND SYSTEMS FOR ANALYTE DETECTION - Techniques are used to detect and identify analytes. Techniques are used to fabricate and manufacture sensors to detect analytes. An analyte ( | 2009-12-17 |
20090309615 | METHOD AND SENSOR ARRANGEMENT FOR MEASURING THE MIXING RATIO OF A MIXTURE OF SUBSTANCES - As regards a measurement structure which is as simple as possible and in order to influence the mixing operation or the transfer of substances to the slightest possible extent, a method for measuring the mixing ratio of a mixture of substances comprising at least two substances ( | 2009-12-17 |
20090309616 | TOUCH AND FORCE SENSING FOR INPUT DEVICES - A device may include a first layer, a second layer, a third layer, a capacitive sensing component coupled to the first layer, and a force sensing component coupled to the first layer and the third layer and configured to detect the amount of force applied to the second layer. A method may include monitoring capacitance and voltage at one or more input sensors configured to detect changes in capacitance and to detect changes in applied force, detecting a change in capacitance, activating a capacitance response in response to detecting a change in capacitance, detecting a change in voltage, and activating a force response in response to detecting a change in voltage. | 2009-12-17 |
20090309617 | Biosensor antibody functional mapping - Disclosed is a system and method for measuring aspects of antibody function in live-cell systems as defined herein. The system and method also provide a method to measure prophylaxis or remedial aspects of antibody therapeutic candidates in a live-cell or a live-cell model. | 2009-12-17 |
20090309618 | Real Time Electronic Cell Sensing System and Applications For Cytotoxicity Profiling and Compound Assays - The present invention includes devices, systems, and methods for assaying cells using cell-substrate impedance monitoring. In one aspect, the invention provides cell-substrate impedance monitoring devices that comprise electrode arrays on a nonconducting substrate, in which each of the arrays has an approximately uniform electrode resistance across the entire array. In another aspect, the invention provides cell-substrate monitoring systems comprising one or more cell-substrate monitoring devices comprising multiple wells each having an electrode array, an impedance analyzer, a device station that connects arrays of individual wells to the impedance analyzer, and software for controlling the device station and impedance analyzer. In another aspect, the invention provides cellular assays that use impedance monitoring to detect changes in cell behavior or state. The methods can be used to test the effects of compounds on cells, such as in cytotoxicity assays. Methods of cytotoxicity profiling of compounds are also provided. | 2009-12-17 |