| 01st week of 2009 patent applcation highlights part 20 |
| Patent application number | Title | Published |
|---|
| 20090001901 | ULTRAVIOLET LAMP SYSTEM AND METHOD FOR CONTROLLING EMITTED UV LIGHT - An ultraviolet lamp assembly and corresponding methods is operable to generate ultraviolet light for irradiating a substrate.. The lamp assembly includes a magnetron, an electrodeless lamp for emitting ultraviolet light when excited by microwave radiation generated from the magnetron, and a power control circuit arrangement configured to control an output power of the microwave radiation generated by the magnetron corresponding to the intensity of ultraviolet light produced by the lamp. A first control loop of the power control circuit is configured to regulate an input current to the magnetron based upon an input current setting associated with a desired intensity of UV light output of the lamp and a second control loop coupled to the first control loop configured to adjust the input current setting used by the first control loop to regulate the input current to the magnetron based upon an input power to the magnetron, which is proportional to the intensity of UV light output from the lamp. | 2009-01-01 |
| 20090001902 | High pressure discharge lamp control method - A system for providing a controllable current to a high intensity discharge lamp is provided. The system includes a current controller that is configured to receive input power and to provide an output current waveform to the high intensity discharge lamp. This current causes a discharge of light from the lamp. The output current waveform includes an absolute value amplitude in each half cycle that is generally constant during a first portion and that which increases non-linearly from the generally constant amplitude to a peak amplitude during a second portion. | 2009-01-01 |
| 20090001903 | Backligth module having detecting circuit and direct current voltage compensation circuit - An exemplary backlight module includes lamps ( | 2009-01-01 |
| 20090001904 | Ignition controller, light source, projector and ignition control method - An ignition controller that controls ignition of a discharge lamp discharging and emitting light between a pair of electrodes provided therein, the controller includes: an ignition device that ignites the discharge lamp, and a controller that controls a drive of the ignition device, in which the controller includes: a pulse applying unit that applies a high pressure pulse to the pair of electrodes by the ignition device, a direct current applying unit for applying a direct current to the pair of electrodes for a first period after applying the high pressure pulse, and an alternating current applying unit for applying a first alternating current to the pair of electrodes for a second period after the first period. | 2009-01-01 |
| 20090001905 | Delta-sigma signal density modulation for optical transducer control - A controller for optical transducers uses delta-sigma signal density modulation to reduce electromagnetic interference. | 2009-01-01 |
| 20090001906 | METHOD AND APPARATUS FOR CONTROLLING ASYNCHRONOUS MOTORS - Methods and apparatus are provided for controlling first and second motors. A controller includes a processor supplying a control signal for driving the motors and a logic circuit coupled to the processor. The processor produces a first trigger coordinated with the rate of the first motor and a second trigger coordinated with the rate of the second motor. The logic circuit produces a third trigger from a combination of the first and second triggers. The processor includes a converter for sampling the currents of the motors in response to the third trigger. The processor further produces a modified pulse width in the first trigger if a period between the first and second triggers is less than a predetermined limit and directs the converter to consecutively sample the currents in response to the modified pulse width. | 2009-01-01 |
| 20090001907 | COMMUTATION OF AN ELECTROMAGNETIC PROPULSION AND GUIDANCE SYSTEM - A method of commutating a motor includes calculating an adjustment electrical angle, and utilizing the adjustment electrical angle in a common set of commutation equations so that the common set of commutation equations is capable of producing both one and two dimensional forces in the motor. | 2009-01-01 |
| 20090001908 | System and Method of Providing a Thermally Stabilized Fixed Frequency Piezoelectric Optical Modulator - A device for generating controlled vibration in an uncontrolled temperature environment includes a driving circuit that generates a signal having a first frequency and has a temperature-sensitive driving unit, a vibratory element coupled to the driving unit that vibrates at the first frequency according to the generated signal, and a temperature control circuit to control the temperature of the driving unit. | 2009-01-01 |
| 20090001909 | AUTOMOTIVE POWER INVERTER WITH REDUCED CAPACITIVE COUPLING - An automotive power inverter is provided. The power inverter includes a chassis, a microelectronic die coupled to the chassis and having an integrated circuit formed thereon, and an insulating region between the chassis and the microelectronic die. | 2009-01-01 |
| 20090001910 | Control method, control circuit, and control program for power retractable mirror - A control method can stop motor operation reliably when a mirror rotator is mechanically locked at a driven end of the mirror rotator. The control method operates a motor | 2009-01-01 |
| 20090001911 | Conduction angle control of a switched reluctance generator - A control system is disclosed. The control system has a switched reluctance generator coupled to provide electrical power through a DC bus to a motor. The control system also has a controller in communication with the switched reluctance generator, the motor, and the DC bus. The controller is configured to receive an indication of an amount torque or power required by the motor, determine a conduction angle of the switched reluctance generator based on the amount of torque or power required by the motor; and energize the DC bus with the electrical power provided by the switched reluctance generator based on the optimal conduction angle. | 2009-01-01 |
| 20090001912 | CONTROL DEVICE FOR THREE-PHASE BRUSHLESS MOTOR - A control apparatus for a three-phase brushless motor, in which a control circuit includes time interval calculation means ( | 2009-01-01 |
| 20090001913 | DRIVE CONTROL CIRCUIT FOR ELECTRIC MOTOR - The drive control circuit for an electric motor is provided. The drive control circuit includes: an original drive signal generator that generates an original drive signal, based on a positional signal which indicates a relative position of a first drive member and a second drive member of the electric motor; an excitation ratio signal generator that generates an excitation ratio signal which indicates a ratio of excitation interval to non-excitation interval of coils of the electric motor, based on a speed signal indicating a relative speed of the first drive member and the second drive member of the electric motor; an excitation interval signal generator that generates a binary excitation interval signal which specifies the excitation interval and the non-excitation interval of the coils of the electric motor, based on the positional signal and the excitation ratio signal; and a mask circuit that generates a drive signal for driving the electric motor by masking part of the original drive signal based on the excitation interval signal. | 2009-01-01 |
| 20090001914 | Electric-Motor-Equipped Vehicle - An electric-motor-equipped vehicle of the present invention includes an electric motor which receives a power supply from a storage apparatus and drives the vehicle, or assists a driving of the vehicle by an internal combustion engine. The electric motor includes: an inner circumference side rotor and an outer circumference side rotor which are each provided with magnet pieces, and rotation axes of which are coaxially arranged; a stator which is arranged on an outer circumferential side or an inner circumferential side of the inner circumference side rotor and the outer circumference side rotor; and a phase modification device capable of modifying a relative phase between the inner circumference side rotor and the outer circumference side rotor. | 2009-01-01 |
| 20090001915 | METHOD AND APPARATUS FOR ACTIVE VOLTAGE CONTROL OF ELECTRIC MOTORS - Methods and apparatus are provided for dynamic voltage control of electric motors. An inverter provides an output voltage to an electric motor based on a gate voltage. The method includes determining a speed of the electric motor and modifying the gate voltage based on the speed of the electric motor. The apparatus includes a gate drive circuit and a controller coupled to the gate drive circuit. The gate drive circuit provides a gate voltage to a switch network, and the switch network produces the output voltage in response to the gate voltage. The controller modifies the gate voltage based on a speed of the electric motor. | 2009-01-01 |
| 20090001916 | MOTOR CONTROLLING DEVICE AND METHOD TEHREOF - A motor controlling device and a motor controlling method are provided. The motor controlling device includes a first sensor, a second sensor and a signal switching circuit. The signal switching circuit is electrically connected to the first and second sensors, respectively. The signal switching circuit is switched to the first sensor to output a first switching phase signal to drive a motor when the motor starts to operate. The signal switching circuit is switched to the second sensor to output a second switching phase signal to drive the motor when a predetermined switching condition is satisfied with a predetermined value during the motor operation. | 2009-01-01 |
| 20090001917 | REDUCED-COMPLEXITY SELF-BEARING BRUSHLESS DC MOTOR - A method of commutating a motor includes operatively interfacing a stator and actuated component of the motor, arranging at least two winding sets relative to the actuated component, and independently controlling the at least two winding sets so that with the at least two winding sets the actuated component is both driven and centered. | 2009-01-01 |
| 20090001918 | TRANSMISSION DEVICE - A transmission device includes a power output unit and a non-contact type sensing unit. The power output unit includes a power output member that is rotatable about an axis, and has at least one sensed portion that is co-rotatable with the power output member about the axis. The non-contact type sensing unit detects the sensed portion and generates a sensor output from which angular displacement and position of the power output member can be calculated. | 2009-01-01 |
| 20090001919 | Robot - A robot, wherein the operating amounts of the first and second actuators are adjusted according to a torque necessary for maintaining a body member and an end member at specified angles in a mechanism in which the body member ( | 2009-01-01 |
| 20090001920 | MICRO-STEP DRIVING METHOD OF STEPPING MOTOR AND ELECTRICALLY-DRIVEN DEVICE USING STEPPING MOTOR - In a micro-step drive and driving method of a stepping motor, the stepping motor generates a drive force for movement on a prescribed path of a moving unit provided in an electrically driven device, a standard point and a target point of an operation are set on the path, the stepping motor is rotated such that the moving unit passes through the standard point, a count value of a stable stop point of the stepping motor that is closest to a count value at the point of time when the moving unit passed through the standard point is specified, the specified count value is set as a start point for controlling a rotation angle of the stepping motor, and the stepping motor is rotated, and stopped at the count value of the selected stable stop point. | 2009-01-01 |
| 20090001921 | Electronic Method for Starting a Compressor - A motor starting apparatus ( | 2009-01-01 |
| 20090001922 | MOTOR CONTROLLING DEVICE, MOTOR DRIVE SYSTEM, METHOD OF MOTOR CONTROL, SEMICONDUCTOR DEVICE AND ELECTRONIC DEVICE - A motor control device is disclosed which is arranged so as to perform a PWM control for a permanent magnet motor including a rotor having a permanent magnet and a stator with a multiphase winding. The motor control device includes a position detection unit which executes an analog computation process for induced voltages of respective phases of the motor based on voltage, current and a constant of the motor and a phase voltage equation, thereby generating and delivering a rotational position signal of the rotor based on a phase relation of the induced voltages, and a digital processing unit which has a function of generating and delivering a PWM signal based on the rotational position signal, thereby controlling the motor. | 2009-01-01 |
| 20090001923 | SYSTEMS AND METHODS FOR OPERATING Z-SOURCE INVERTER INDUCTORS IN A CONTINUOUS CURRENT MODE - Systems, apparatus, and methods for operating inductors in a Z-source inverter in a continuous current mode are provided. One system includes an AC motor, a Z-source inverter, and a processor. The inverter is configured to provide current and reactive power to the AC motor. The processor is configured to monitor the current and instruct the inverter to provide a greater amount of reactive power to the AC motor if the current is below/equal to a threshold amount. An apparatus includes means for determining if current produced by the inverter is below/equal to a threshold amount, and means for altering voltage commands supplied to the inverter so that an AC motor is induced to draw additional reactive power. One method includes determining if a plurality of inductors are providing a threshold current amount, and inducing a motor to draw more reactive power if the current is below/equal to the threshold amount. | 2009-01-01 |
| 20090001924 | System and method for dynamic field weakening - A field weakening control system for use with an induction motor is disclosed. The field weakening control system has a sensing device configured to generate a signal indicative of a speed of the induction motor and a controller. The controller is configured to determine an initial voltage command based on the signal and determine an acceleration of the induction motor based on the signal. The controller is also configured to generate a desired voltage command based on at least one of the initial voltage command and the acceleration. | 2009-01-01 |
| 20090001925 | Power Conversion Circuit - A desired current is caused to flow through a coil by controlling switching of switching elements by a PWM controller. For a voltage sensor, a value of Vo−ΔV, which is a difference between a midpoint voltage Vo of the switching elements and a predetermined threshold voltage ΔV, and a value of Vo−(Vc−ΔV), which is a difference between the midpoint voltage Vo and a value obtained by subtracting the threshold voltage ΔV from a voltage Vc of an upper line, are determined. Then, the determined results obtained from the voltage sensor are input to the PWM controller through flip-flops and a dead time compensator to compensate for dead time, such as, for example, for a command for PWM control signal generation. | 2009-01-01 |
| 20090001926 | Electrically Driven Vehicle - A electrically driven vehicle ( | 2009-01-01 |
| 20090001927 | SYSTEMS AND METHODS FOR INTELLIGENT CHARGING AND INTELLIGENT CONDITIONING OF A HIGH VOLTAGE BATTERY - The technology described herein provides a stand-alone intelligent battery charger and intelligent conditioner for use with a high-voltage battery, such as those used in hybrid automotive vehicles. Additionally, in various exemplary embodiments, this technology provides a system and method for validating the capacity of a high voltage battery. Other comparable uses are also contemplated herein, as will be obvious to those of ordinary skill in the art. | 2009-01-01 |
| 20090001928 | Transformation of battery charger to power source using signature adapters - A signature connector adapter adapted to provide additional capabilities for a battery charger beyond not only charge batteries, but performing other user-friendly functions is presented. One embodiment utilizes a resistor disposed within a signature charger adapter to detect battery type and communicate the battery type to the battery charger. The signature connector adapter provides information such as, but not limited to, battery chemistry, battery voltage, charging capabilities, and thermal limits. The battery charger can then optimize charging performance. The signature connector adapter allows a plurality of household, construction, medical and military devices to be charged and/or powered via the battery charger. Devices such as lights, radios, cigarette lighters, and other such devices requiring specific levels or types of power can now be operated and charged with a single charger, since the signature connector adapter facilitates the charging system changing its output to match the device's requirements. | 2009-01-01 |
| 20090001929 | WIRELESS CHARGING DEVICE WITH REFLECTED POWER COMMUNICATION - Disclosed is a wireless charging device for charging electronic devices placed in a docking area of the wireless charging device. The wireless charging device includes an inductive coupler, a reflected power detector, a power source and a power control system. The inductive coupler is configured to charge at least one electronic device present in the docking area. The inductive coupler takes power form the power source. The inductive coupler is also configured to communicate with the electronic device to exchange a set of information. The reflected power detector is operably coupled to the inductive coupler and identifies the set of information exchanged by the inductive coupler. The power control system is operably coupled to the reflected power detector and the power source. The power control system controls the charging of the electronic device by the power source based on the set of information identified by the reflected power detector. | 2009-01-01 |
| 20090001930 | Electronic apparatus and associated methods - An apparatus for receiving electromagnetically induced current, the apparatus comprising an antenna element for receiving electromagnetically induced current in a first apparatus operating mode, and also for near field communication in a second apparatus operating mode, wherein the apparatus comprises circuitry for switching the apparatus from the second apparatus operating mode to the first apparatus operating mode based on near field communication signalling received via the antenna element in the second apparatus operating mode. | 2009-01-01 |
| 20090001931 | Battery cover - A battery cover suitable for being used to cover a battery groove of an electric appliance such as a game controller, a remote controller, a mobile phone, a multi-medium player, a wireless mouse, a flashlight, a PDA, a digital camera etc. to generate electric power in a wireless inducing mode, for charging chargeable batteries that can thus supply electric power for operation of an electric appliance. Therefore, when a user is desired to electrically charge the chargeable batteries, it needs not to take the chargeable batteries out of the electric appliance, but needs only to directly place the electric appliance in an effective wireless induction zone to make the battery cover generate electric power in a wireless inducing mode to charge the batteries. | 2009-01-01 |
| 20090001932 | POWER TRANSMISSION CONTROL DEVICE, POWER TRANSMISSION DEVICE, NON-CONTACT POWER TRANSMISSION SYSTEM, AND ELECTRONIC INSTRUMENT - A power-transmission-side control circuit causes a power transmission device to perform temporary power transmission when a switch provided in a power-transmission-side instrument has been turned ON, and performs ID authentication based on ID authentication information. The power-transmission-side control circuit detects the presence or absence of a foreign object during normal power transmission by monitoring a change in induced voltage in a primary coil, causes the power transmission device to stop temporary power transmission when the ID authentication information from the power reception device has not been received within a given period of time, causes the power transmission device to stop temporary power transmission when the ID authentication has failed, and causes the power transmission device to stop normal power transmission when removal, a metal foreign object, a takeover state, or a full-charge state has been detected after normal power transmission has started. | 2009-01-01 |
| 20090001933 | Electric device system with integrated recharge source and exterior energy source - A system containing an electric device such as a cellular phone, equipped with an integrated source of rechargeable electrical energy, an exterior energy source device and a connecting cable from the source device to the device. The exterior source device contains a module with several batteries likely to be connected t the device and constitute a source of electrical energy making it possible to completely charge the internal battery pack of the device. | 2009-01-01 |
| 20090001934 | BATTERY TESTING APPARATUS - A battery testing apparatus includes a charge circuit, a discharge circuit, a computer, and a control circuit. The charge circuit is coupled to a direct current (DC) adapter, the DC adapter charges a battery through the charge circuit. The discharge circuit is coupled to the battery and configured to discharge the battery. The computer records charge/discharge time and charge/discharge cycles of the battery, and calculates capacity and cycle life of the battery according to the time and cycles of charge and discharge. The control circuit has an input terminal coupled to the computer, and a plurality of output terminals respectively coupled to the charge circuit and the discharge circuit, the control circuit controls the charge and discharge circuits charging and discharging the battery. | 2009-01-01 |
| 20090001935 | Battery Charging System - A battery charging system is disclosed. The battery charging system includes a battery cell, a voltage measurement circuit and an overvoltage protection circuit. The voltage measurement circuit measures a cell voltage of the battery cell. The overvoltage protection circuit is configured to stop charging the battery cell when a reading voltage measured by the voltage measurement circuit reaches an overvoltage setting value. The battery charging system also includes a battery charger for charging the battery cell, and a control unit for supplying a control voltage to the battery charger to perform feedback control of an output voltage of the battery charger. The battery charger includes a voltage feedback input for receiving a feedback voltage and a setting value input for receiving a setting voltage. The control voltage is generated based on the reading voltage and the setting voltage. | 2009-01-01 |
| 20090001936 | Structured silicon anode - A silicon/lithium battery can be fabricated from a silicon substrate. This allows the battery to be produced as an integrated unit on a chip. The battery includes a silicon anode formed from submicron diameter pillars of silicon fabricated on an n-type silicon wafer. The battery also includes a cathode including lithium. | 2009-01-01 |
| 20090001937 | Power management systems with controllable adapter output - A power management system includes a battery pack having a battery controller and includes an adapter operable for charging the battery pack and powering a system load. The adapter generates a power recognition signal indicative of a maximum adapter power and receives a control signal. The battery controller in the battery pack receives the power recognition signal and generates the control signal to adjust an output power of the adapter according to a status of the battery pack and a status of the system load. | 2009-01-01 |
| 20090001938 | CHARGING DEVICE - A method performed by a charging device may include detecting a presence of an external device connected to a secondary side of the charging device and setting a switch on a primary side of the charging device to an off state when a presence of an external device is not detected. | 2009-01-01 |
| 20090001939 | APPARATUS FOR PREVENTING CAPACITOR CHARGER FROM OVERCHARGING AND METHOD THEREOF - An apparatus for controlling a charging circuit is provided. The apparatus includes a first detector, a second detector, and a controller. The first detector detects a voltage level at a first time and generates a first indication value corresponding to the voltage level at the first time, where the voltage level corresponds to an output voltage of the charging circuit. The second detector detects the voltage level at a second time after the first time and generates a second indication value corresponding to the voltage level at the second time. The controller receives the first and second indication values, and generates a control signal according to the first and second indication values for turning the charging circuit on and off. | 2009-01-01 |
| 20090001940 | POWER SYSTEM STABILIZER AND METHOD - A power system stabilizer includes: a sensor configured for sensing a signal representative of electromechanical oscillations of the power system; a controller configured for using the sensed signal for generating control signals for damping the electromechanical oscillations; and a damper including a damping converter and a resistor coupled to the damping converter, the damping converter being coupled to the power system through a power bus, the damping converter configured for using the control signals for damping the electromechanical oscillations. | 2009-01-01 |
| 20090001941 | Inductive Powering Surface for Powering Portable Devices - Systems and methods for an inductive powering surface for powering portable devices are described. In one aspect, a powering device includes the inductive powering surface. The inductive powering surface includes multiple primary coils, an impedance auto-match circuit and other control circuits. The impedance auto-match circuit selectively energizes the primary coils to transfer power via inductive coupling to the secondary coil(s) in a portable device. The impedance auto-match circuit is configured to detect voltage and current phase differences over caused by positioning of the portable device on the inductive powering surface. The impedance auto-match circuit calibrates a power factor of the inductive powering surface to transfer an objectively maximized power load via inductive coupling to the portable device. | 2009-01-01 |
| 20090001942 | Reactive power compensator and control device therefor - A reactive power compensator includes a control block with a limiter and a primary delay-control block with a limiter that set, based on an output of a voltage sensor, reactive power produced by an SVC to a predetermined value. A reactive power controller sets the reactive power produced by the SVC to the predetermined value controls a voltage of a second bus to fall within a predetermined range. This is performed by adjusting an initial value of the reactive power that is output by the SVC, when a bus voltage of the second bus laid at a position apart from a first bus that is laid at a position near the SVC is deviated from a predetermined fixed range. | 2009-01-01 |
| 20090001943 | Current mode boost converter using slope compensation - A boost converter circuit that includes a power supply, an inductor coupled to the power supply to receive current from the power supply, a diode coupled to receive current from the inductor and coupled to provide current to a load as an output, an inductor switch coupled to a node between the inductor and the diode for selectively switching current from the inductor anyway from the diode, and a ramp circuit. The ramp circuit is coupled to the node between the inductor and the diode, and is configured to selectively sample a voltage at the node between the inductor and the diode via a sampling switch and use the sampled signal to produce a stabilization ramp to stabilize the output. | 2009-01-01 |
| 20090001944 | Soft start circuit and power supply including soft start circuit - A soft start circuit is connected to a pulse width modulation controller including an oscillator, and a functionality of modulating amplitude to a pulse width and a power supply includes the soft start circuit. The soft start circuit includes a frequency controlling unit, a duty ratio establishing unit, and a variable switching unit. The frequency controlling unit generates first and second parameter signals for determining a frequency signal frequency by a power source from the PWM controller and provides them to the PWM controller. The duty ratio establishing unit generates a third parameter for determining amplitude of the frequency signal generated by the PWM controller according to a reference voltage, and provides it to the PWM controller. The variable switching unit determines whether it is a first predetermined time from a start-up state, and controls the first parameter of the frequency controller during the first predetermined time. | 2009-01-01 |
| 20090001945 | CIRCUIT AND METHOD FOR PHASE SHEDDING WITH REVERSE COUPLED INDUCTOR - In some embodiments, a regulator with a reverse coupled inductor is provided. It can operate in both a multi-phase and a phase shed mode. When in the phase shed mode, it has circuitry to provide a low resistance path for induced current. | 2009-01-01 |
| 20090001946 | SYSTEM AND METHOD TO CALCULATE INITIAL DUTY CYCLE - A system and method for determining an initial duty cycle for startup of a voltage regulator involves generating a first current source responsive to an input voltage to the voltage regulator and generating a second current source responsive to an output voltage of the voltage regulator. A first capacitor is charged using the first current source responsive to a duty cycle of a PWM signal of the voltage regulator to a first voltage. A second capacitor is charged to a second voltage responsive to a period of the PWM signal of the voltage regulator. The initial duty cycle for startup of the voltage regulator is established as the duty cycle of the PWM signal when the first voltage is substantially equal to the second voltage. | 2009-01-01 |
| 20090001947 | Low power optimized voltage regulator - Methods and apparatus relating to low power optimized voltage regulators are described. In one embodiment, a voltage regulator controller may cause leakage current from a load to drain a capacitor (e.g., coupled in parallel with the load) during a reduced power state. Other embodiments are also disclosed. | 2009-01-01 |
| 20090001948 | Programmable Power Limiting for Power Transistor System - Various systems, methods and apparatuses are provided herein for limiting power dissipation in a switch. As one example, a method for limiting power dissipation is disclosed. The method includes monitoring current through the switch, and based at least in part on detecting that the current is at least as great as a predetermined current limit, regulating the current to the predetermined current limit. The method also includes measuring an amount of power dissipated in the switch while the current is being regulated, and opening the switch when the amount of power has reached a predetermined power limit. | 2009-01-01 |
| 20090001949 | SWITCHING REGULATOR AND METHOD OF CONVERTING DC VOLTAGE - A switching regulator includes an inverter circuit and a size adjustment circuit. The inverter circuit converts an input voltage into an output voltage by a switching operation of a switch circuit. The size adjustment circuit controls an ON resistance of the switch circuit, depending on a power efficiency that is calculated from an input power dependent on the input voltage and an output power dependent on the output voltage. | 2009-01-01 |
| 20090001950 | FLASH MEMORY AND RELATED VOLTAGE REGULATOR - A voltage regulator includes a voltage regulator unit configured to output a step voltage and a damping resistance switching unit coupled between a load and an output node of the voltage regulator and configured to select an optimal damping resistance value based on a required load capacity. | 2009-01-01 |
| 20090001951 | CURRENT DIRECTION DETECTION CIRCUIT AND SWITCHING REGULATOR HAVING THE SAME - A current direction detection circuit includes a monitoring transistor having a control terminal and an output terminal respectively connected with a control terminal and an output terminal of a ground side output transistor; an impedance element having one terminal connected with an input terminal of the monitoring transistor and the other terminal grounded; first and second constant-current sources; a diode-connected reference transistor interposed between the first constant-current source and ground potential; and a sensing transistor interposed between the second constant-current source and the impedance element and having a control terminal connected with the control terminal of the reference transistor. The current direction detection circuit is small yet capable of minimizing power loss of a switching regulator. | 2009-01-01 |
| 20090001952 | Apparatus and method for improving a transient response of a power converter - The output current of a power converter is sensed for triggering a quick transient response when the variation of the output current reaches a default value, and therefore the output voltage of the power converter is promptly stabilized earlier by removing the time delay to trigger the quick transient response. | 2009-01-01 |
| 20090001953 | Low dropout linear voltage regulator - The present invention discloses an LDO (Low DropOut) linear voltage regulator, which is based on an NMC (Nested Miller Compensation) architecture and can be capacitor-free, wherein an active resistor is added to the feedback path of the Miller compensation capacitor to increase the controllability of the damping factor, solve the problem of extensively using the output capacitor with a parasitic resistance, and solve the problem that a compromise must be made between the damping factor control and the system loop gain. Further, the present invention utilizes a capacitor-sharing technique to reduce the Miller capacitance required by the entire system and accelerate the stabilization of output voltage without influencing stability. | 2009-01-01 |
| 20090001954 | SWITCHING POWER SUPPLY - A switching power supply is provided which keeps constant, even when the oscillation frequency of a switching element increases, the on duty of secondary current passing through a secondary winding, thereby achieving a constant current drooping characteristic with high accuracy. To be specific, a secondary current on-period detection circuit generates a signal indicating the off timing of the secondary current, based on a flyback voltage generated on an auxiliary winding. A secondary-current detection delay time correction circuit generates a signal indicating a time when a predetermined period has elapsed since the switching element is turned off. A secondary current on-duty control circuit generates a clock signal for turning on the switching element so as to keep constant the on duty of the secondary current, based on the signal generated by the secondary current on-period detection circuit and the signal generated by the secondary-current detection delay time correction circuit. | 2009-01-01 |
| 20090001955 | DC-DC Converter - Disclosed is a low noise, non-isolated DC-DC converter for providing a non-inverted (i.e., the same polarity as an input voltage) output voltage of any desired voltage by stepping-up/down the input voltage. It comprises an input coil L | 2009-01-01 |
| 20090001956 | POWERED DEVICE INCLUDING A MULTI-USE DETECTION RESISTOR - In a particular embodiment, a method includes receiving a powered device (PD) detection signal at a PD from a powered network and applying the PD detection signal to an external resistor to provide a detection signature to the powered network. Further, the method includes receiving a PD classification mark signal at the PD, applying the received PD classification mark signal to the external resistor, and selectively activating a classification mark current path in parallel with the external resistor to produce a classification mark signature. | 2009-01-01 |
| 20090001957 | Electronic Voltage Supply Method and Apparatus - A method and apparatus for supplying a voltage in an information handling system. A modulated voltage signal output circuit linked to an amplitude control element. The amplitude control element linked to a voltage output circuit, the output circuit including one or more electrical energy-storage elements to receive an electrical current. The voltage output circuit having one or more electronic switches to alter the current passing to the energy-storage element(s) to provide a modulated voltage output. | 2009-01-01 |
| 20090001958 | Bandgap circuit - A bandgap circuit according to an embodiment of the present invention includes a load circuit arranged between an output terminal and a first power supply line, an output transistor arranged between the output terminal and a second power supply line, and outputs a desired reference voltage in accordance with control voltage, a control voltage generating circuit generating the control voltage applied to the output transistor, and a filter arranged between the output transistor and the control voltage generating circuit. | 2009-01-01 |
| 20090001959 | CURRENT MIRROR CIRCUIT HAVING DRAIN-SOURCE VOLTAGE CLAMP - A circuit and method for providing an output current that includes biasing an output transistor in accordance with a reference current to conduct the output current and further includes maintaining a voltage across the output transistor. One embodiment includes conducting a reference current through a diode-coupled first field-effect transistor (FET) and biasing a gate of a second FET matched to the diode-coupled first FET by a voltage equal to a gate voltage of the diode-coupled first FET. A current equal to the reference current is conducted through a third FET having a gate coupled to a drain of the second FET, the third FET matched to the second FET. | 2009-01-01 |
| 20090001960 | Systems and methods for ASIC power consumption reduction - Embodiments of the present invention are directed to dynamically measuring the speed of a circuit and modifying the operating voltage of the circuit based on the measured speed, in order to minimize the power being used while still ensuring proper operation of the circuit. Consequently, circuits of higher inherent speeds may have their voltages decreased (thus decreasing their actual speeds), while circuits of lower speeds may have their voltages increased, or kept the same. Thus, the resulting speeds of all circuits may be kept within a limited range to ensure proper operation. In addition, the power dissipated of circuits of higher speeds may be decreased. | 2009-01-01 |
| 20090001961 | SYSTEMS AND METHODS FOR DETERMINING A CONCENTRATION OF BIODIESEL IN A MIXTURE OF BIODIESEL AND PETRODIESEL - Systems and methods for determining a concentration of biodiesel in a mixture of biodiesel and petrodiesel are provided. In one exemplary embodiment, a method includes receiving an oscillatory signal at an inductance-capacitance-resistance circuit. The circuit has a sensing element fluidly communicating with the mixture of biodiesel and petrodiesel. The method further includes generating a resonant current at a resonant frequency utilizing the circuit in response to the oscillatory signal. The method further includes determining a concentration value indicating the concentration of the biodiesel in the mixture based on an amplitude of the resonant current and/or the resonant frequency, utilizing a microprocessor. The method further includes storing the concentration value in a memory device, utilizing the microprocessor. | 2009-01-01 |
| 20090001962 | CURRENT SENSOR WITH RESET CIRCUIT - A current sensor includes a coils located within the integrated circuit die and inductively coupled to a conductor located in the integrated circuit package holding the die. The inductors sense the current in the conductor and supply the sensed signal to an integrator that supplies a voltage indicative of the current in the conductor. | 2009-01-01 |
| 20090001963 | High Temporal Resolution Optical Sampler and Sampling Method - An optical sampler with high temporal resolution comprises a TOAD device ( | 2009-01-01 |
| 20090001964 | Integrated Hybrid Current Sensor - A sensor arrangement for measuring current is disclosed. The sensor arrangement includes a substrate, at least one Hall element integrated in or arranged on the substrate, a first coil that is spaced apart from a surface of the substrate in a vertical direction, a second coil that is spaced apart in a vertical direction from the first coil, and an isolation layer that is arranged between the first coil and the second coil. | 2009-01-01 |
| 20090001965 | Magnetic-Field Sensor and Method of Calibrating a Magnetic-Field Sensor - An embodiment of a magnetic-field sensor has a plurality of sensor elements connected to form measurement arrangements, each measurement arrangement having a measurement tap, and a control circuit formed to perform an embodiment of a method of calibrating the magnetic-field sensor. | 2009-01-01 |
| 20090001966 | MOTOR SYSTEM EMPLOYING ANALOG ENCODED HALL EFFECT SENSOR POSITION INFORMATION FOR REDUCED WIRING - A system has a sensor assembly mounted adjacent to a moving magnetic member such as a motor rotor to sense its position. The sensor assembly includes Hall-effect sensors each having a binary output, configured such that distinct positions of the moving magnetic member correspond to distinct digital patterns of the outputs of the Hall-effect sensors. Encoding circuitry is coupled to the outputs of the Hall-effect sensors to generate a multi-valued analog output, distinct values of the multi-valued analog output representing corresponding distinct digital patterns of the outputs of the Hall-effect sensors. The encoding circuitry may employ a ladder network with weighted-value resistors contributing different components of an analog current sensed by the controller. The sensed current can be converted to digital position information using suitable analog-to-digital conversion circuitry. The multi-valued analog output can be conveyed on a single wire in contrast to the prior art which requires one wire per Hall-effect sensor. | 2009-01-01 |
| 20090001967 | Cylinder Control Unit - [Problem to be Solved] To specify motion range of piston | 2009-01-01 |
| 20090001968 | Apparatus for Measuring the Relative Position of Two Parts - Apparatus for measuring the relative position of two parts with a deformable coil, which is connected to both parts and deforms according to their relative position, wherein the inductance of the coil depends on shape and is thus a measure of the relative position, and wherein the coil has a magnetic circuit which is closed in the manner of a toroidal coil. | 2009-01-01 |
| 20090001969 | SYSTEM AND METHOD FOR ELECTROMAGNETIC NAVIGATION OF A MAGNETIC FIELD GENERATING PROBE - An electromagnetic navigation probe includes a structural component, a magnetic field generator coupled to the structural component for generating a magnetic field and an actuator for varying the magnetic field as a function of time and space such that a location of the probe in three dimensional space can be determined. | 2009-01-01 |
| 20090001970 | MAGNETIC ENCODER - A magnetic encoder is provided, in which a large output voltage (a large amplitude) is obtained so that the magnetic encoder can have a strong resistance to external noise and so that malfunction can be prevented. | 2009-01-01 |
| 20090001971 | MAGNETIC STRUCTURE FOR DETECTING A RELATIVE MOTION BETWEEN THE MAGNETIC STRUCTURE AND A MAGNETIC FIELD SENSOR - A magnetic structure for detecting a relative motion between the magnetic structure and a magnetic field sensor comprises at least two permanent magnets. The permanent magnets are arranged along a predetermined line which for example is a straight or circular line at a predetermined distance g from each other. The permanent magnets are magnetized in the direction of the line, adjacent permanent magnets having an opposite direction of magnetization. | 2009-01-01 |
| 20090001972 | CALIBRATION CIRCUITS AND METHODS FOR PROXIMITY DETECTOR - A proximity detector employs a first peak detector circuit and a second peak detector circuit, both responsive to a magnetic field signal. The second peak detector circuit includes a positive peak detector circuit and a negative peak detector circuit, each of which have a predetermined excursion limit in an outward direction away from a center voltage of the magnetic field signal so as to be less affected by a large signature region in the magnetic field signal. The proximity detector also includes an output control circuit. The output control circuit is configured to provide an output signal, which, during a determined time period, changes state in response to the first peak detector circuit, and which, after the determined time period, changes state in response to the second peak detector circuit. | 2009-01-01 |
| 20090001973 | Magnetic Sensor Arrangement for Defined Force Transmission - A magnetization arrangement includes an inner element having an outer surface, an outer element having an inner surface, a connecting device, and a magnetic field measuring device. At least one element of the inner and outer element has a magnetizable area. The magnetic field measuring device is designed to measure a magnetic field generated by the magnetized magnetizable area. The connecting device joins the inner surface of the outer element and the outer surface of the inner element non-positively in such a way that a force acting on the magnetic sensor device can be transmitted in a defined manner between the outer element and the inner element. | 2009-01-01 |
| 20090001974 | Torque and load monitoring using magnetic sensor arrays - An apparatus for the nondestructive measurement of materials that includes at least two layers of electrical conductors. Within each layer, a meandering primary winding is used to create a magnetic field for interrogating a test material while sense elements or conducting loops within each meander provide a directional measurement of the test material condition. In successive layers extended portions of the meanders are rotated so that the sense elements provide material condition in different orientations without requiring movement of the test circuit or apparatus. In a bidirectional implementation the angle is 90° while in a quadridirectional implementation the relative angles are −45, 0, 45, and 90°. Multidirectional permeability measurements are used to assess the stress or torque on a component. These measurements are combined in a manner that removes temperature effects and hysteresis on the property measurements. This can be accomplished through a correction factor that accounts for the temperature dependence. After the corrections, the permeability measurement is then used to assess the local stresses and strains in the material of interest. | 2009-01-01 |
| 20090001975 | APPARATUS AND METHOD FOR NON-SYMMETRIC MAGNETIC FIELD BALANCING IN AN INSPECTION SCANNER - An inspection system positions a balancing shim to asymmetrically balance a magnetic field generated by an inductive sensor, which forms part of the inspection system. Additionally, relays and capacitors used to tune the inductive sensor to a desired resonance frequency are geometrically arranged to minimize electrical interference generated by operation of the relays and capacitors. A shielding device, which may be formed on a printed circuit board, protects a magnetic field generated by the inductive sensor from external electromagnetic interference. A slot positioned in the inductive sensor may be used to tune a resonant mode of the inductive sensor to accurately and particularly detect metallic shanks and/or other metallic objects in shoes, socks, and/or clothing. | 2009-01-01 |
| 20090001976 | MAGNETIC CRASH SENSOR - A time-varying signal is applied to at least one coil in magnetic communication with at least a portion of a vehicle susceptible to deformation responsive to a crash. A sense resistor in series with the at least one coil provides for detecting a current therethrough responsive to a voltage thereacross. The current is responsive to a magnetic condition affecting the magnetic field generated by the at least one coil, responsive to the reluctance of a magnetic circuit with which the at least one coil is in magnetic communication, and responsive to associated eddy currents in proximal conductive elements, responsive to the magnetic field generated by the at least one coil. | 2009-01-01 |
| 20090001977 | BILL DISCRIMINATION DEVICE AND SENSOR FOR SAME - The sensor portion of the bill discrimination device has a variable inductance portion whose inductance changes depending on thickness of the bill and the magnetic ink amount, and an output signal generator for generating an output signal depending on the inductance of the variable inductance portion. The variable inductance portion includes a contact member which may have magnetostrictive behavior, and a coil portion disposed about the perimeter thereof. The contact member is positioned so as to be subjected to pressing force of a spring via an auxiliary roller. When the pressing force received from the spring changes depending on the thickness of a currency bill, the magnetic permeability of the contact member will change and the inductance of the variable inductance portion will change. At the same time, the inductance of the variable inductance portion will also change depending on the magnetic charge of the currency bill. | 2009-01-01 |
| 20090001978 | Sensor system - A sensor system is provided. The sensor system includes an electrically conductive surface and an air coil in proximity to the electrically conductive surface. The air coil has a wire winding pattern with an “L” shaped cross section. The sensor system also includes a controller, coupled to the air coil and configured to sense a change in impedance of the air coil due to movement of the electrically conductive surface. A safety device is coupled to the controller. The controller activates the safety device if the change in impedance of the air coil exceeds a predetermined threshold. | 2009-01-01 |
| 20090001979 | Magnetic field measuring apparatus - Providing: quickly brining a vapor cell | 2009-01-01 |
| 20090001980 | RADIO FREQUENCY SENSOR SYSTEMS, ELECTROMAGNETIC SENSOR ARRAYS, AND METHODS OF MANUFACTURE - An embodiment includes a radio frequency (RF) sensor system having a plurality of magnetoresistive (MR) sensors, where each MR sensor includes a configuration of MR elements and is adapted to produce a time-varying output voltage in response to a time-varying, external magnetic field. The RF sensor system also includes combiner circuitry, electrically coupled to the plurality of MR sensors, and adapted to receive and combine a plurality of time-varying output voltages from the plurality of MR sensors to generate a sensor output voltage. Another embodiment includes an electromagnetic sensor array having a plurality of MR sensors arranged in an array configuration, where each MR sensor includes a plurality of MR elements forming a Wheatstone bridge circuit, and where each MR sensor is adapted to produce a time-varying output voltage in response to a time-varying, external magnetic field. Still another embodiment includes a method for manufacturing an electromagnetic sensor array. | 2009-01-01 |
| 20090001981 | MAGNETIC FIELD SENSOR CIRCUIT WITH COMMON-MODE VOLTAGE NULLING - A magnetic field sensor circuit with common-mode voltage nulling, reduces or eliminates the effect of common-mode variation and transients due to rotation of the magnetic field sensor terminals between the bias current source and sensor output voltage terminals. A switching circuit rotates the bias current source and sensor output voltage terminals between pairs of terminals of the semiconductor magnetic field sensor. After each rotation, the switching circuit momentarily shorts all of the terminals of the semiconductor magnetic field sensor to a reference voltage such as ground. After a predetermined period of time, a sample/hold circuit having an input coupled to the sensor output terminals samples and holds the voltage at the sensor output voltage terminals, resulting in a sampled output free of common mode error between samples due to common-mode error and magnitude changes between magnetic field sensor terminal pairs. | 2009-01-01 |
| 20090001982 | Method and Apparatus for Defined Magnetizing of Permanently Magnetizable Elements and Magnetoresistive Sensor Structures - A method of magnetizing a permanently magnetizable element associated with a magnetic field sensor structure includes generating a test magnetic field penetrating the magnetic field sensor structure and the permanently magnetizable element, detecting the magnetic field and providing a test signal based on a magnetic field through the magnetic field sensor structure, aligning the test magnetic field and the magnetic field sensor structure with the permanently magnetizable element to each other, until the test signal reaches a set value corresponding to a predetermined magnetized field distribution with respect to the magnetic field sensor structure, and generating a magnetizing field for permanently magnetizing the element to be permanently magnetized, wherein the magnetizing field corresponds to the predetermined magnetic field distribution within a tolerance range. | 2009-01-01 |
| 20090001983 | Magnetic Field Sensing Element - A magnetic field sensing element includes a pair of electrodes; a dielectric polymer layer separating the electrodes; and a network of magnetic nanoparticles in the insulating layer forming a current flow path between the electrodes; where the network of magnetic nanoparticles includes at least one magnetic tunnel junction involving two neighbouring nanoparticles of different coercivity. | 2009-01-01 |
| 20090001984 | METHOD AND APPARATUS FOR K-SPACE AND HYBRID-SPACE BASED IMAGE RECONSTRUCTION FOR PARALLEL IMAGING AND ARTIFACT CORRECTION - A method for performing correction in an autocalibrated, multi-shot MR imaging data acquisition includes performing correction on k-space data in an autocalibration region for each shot individually and then combining the corrected k-space data from each shot to form a corrected reference autocalibration region. Uncorrected source k-space data points are “trained to” the corrected k-space data from the corrected reference autocalibration region to determine coefficients that are used to synthesize corrected k-space data in the outer, undersampled regions of k-space. Similarly, acquired k-space lines in the outer, undersampled regions of k-space may also be replaced by corrected synthesized k-space data. The corrected k-space data from the corrected reference autocalibration region may be combined with the synthesized corrected k-space data for the outer, undersampled regions of k-space to reconstruct corrected images corresponding to each coil element. The corrected images corresponding to each coil element may be combined into a resultant image. | 2009-01-01 |
| 20090001985 | Methods for Electromagnetic Measurements and Correction of Non-Ideal Receiver Responses - A method for determining formation electrical properties includes deploying one or more receivers for electromagnetic logging; obtaining measurement data indicative of the formation electrical properties using the deployed receivers; correcting the measurement data for receiver imperfection; and inverting the corrected measurement data to obtain one or more parameters of formation electrical properties. | 2009-01-01 |
| 20090001986 | SYSTEMS AND METHODS FOR CALIBRATING AN ELECTROMAGNETIC RECEIVER - An electromagnetic receiver includes at least one sensor for measuring electromagnetic signals, and a calibration antenna configured to generate an electromagnetic signal at a first frequency. | 2009-01-01 |
| 20090001987 | Cable-type electromagnetic receiver system for subsurface exploration - A marine electromagnetic survey cable includes a reference electrode extending substantially along the entire length of the cable. A plurality of spaced apart measuring electrodes is disposed along the cable and each is electrically insulated from the reference electrode. A voltage measuring is circuit functionally coupled between each measuring electrode and the reference electrode. | 2009-01-01 |
| 20090001988 | ELECTRICAL CONNECTOR INTERFACED WITH CONDUCTIVE INK ON A CARDBOARD SUBSTRATE - An inventory control system, comprising a blister pack having a pierceable sheet that includes a plurality of printed circuits overlying each of the compartments of the blister pack. The printed circuits are in electrical communication with a connector assembly, the connector assembly being in electrical communication with a removable header. The header is in communication with a microprocessor controlled device having a memory; wherein the microprocessor controlled device determines the contents of the blister pack. The blister pack and connector assembly are removed from the substantially fixed header so the contents can be distributed. As the contents are distributed from the blister pack, the printed circuits are broken. When the connector assembly is reattached to the blister pack, electrical signals transmitted through the connector assembly and the blister pack determines the number of broken circuits, indicative of the contents of the blister pack. The connector assembly is a reusable device that includes a board that provides for electrical communication between the header and the blister pack and also facilitates assembly and removal of the connector to the header. | 2009-01-01 |
| 20090001989 | ONE ROW WAVELET SENSOR LAYOUT FOR RESISTIVITY IMAGING - A sensor electrode for imaging a formation, includes a geometry that one of reduces or substantially limits spatial aliasing in formation data, the aliasing resulting from imaging the formation with an array of the sensor electrodes. A method and a computer program product for designing sensor electrodes are provided. A sensor with a one-row wavelet geometry is disclosed. | 2009-01-01 |
| 20090001990 | DETECTOR FOR AN ULTRAVIOLET LAMP SYSTEM AND A CORRESPONDING METHOD FOR MONITORING MICROWAVE ENERGY - A detector for an ultraviolet lamp system of the type having a microwave generator includes a first circuit that is configured to detect the microwave energy generated from the microwave generator. The first circuit includes at least one radiation sensitive component capable of failing upon exposure to an excessive amount of microwave energy. A second circuit is coupled to the first circuit and configured to intermittently test whether the radiation sensitive component has failed. An ultraviolet lamp system includes the detector. An associated method includes monitoring the microwave energy through the first circuit including at least one radiation sensitive component capable of failing upon exposure to an excessive amount of microwave energy and testing the radiation sensitive component to determine whether the radiation sensitive component has failed. | 2009-01-01 |
| 20090001991 | PROJECTION LAMP TEST DEVICE - A projector lamp electronic test circuit is provided. The test circuit includes an electrical connector configured to be operatively coupled to a lamp of a projection unit under test, a converter configured to receive a test charge to be sent to the lamp from an alternating current power source, the converter configured to convert the test charge from alternating current to direct current, and an autotransformer operatively coupled to the converter, the autotransformer configured to regulate a voltage of the test charge, the voltage being suitably high enough to cause failure of the lamp. | 2009-01-01 |
| 20090001992 | Charged State Estimating Device and Charged State Estimating Method of Secondary Battery - When a battery current is not larger than a limit current set depending on the battery temperature and is flowing continuously for a predetermined time set depending on the battery temperature or longer, a decision is made that a secondary battery is in stable state. When the secondary battery is in stabilized state, the battery voltage is considered to be equal to the open circuit voltage and SOC estimation is performed based on the open circuit voltage-SOC characteristics. When the product of the internal resistance of the secondary battery and the limit current is made substantially constant (constant voltage) by setting the limit current in association with temperature dependence of the internal resistance, estimation error can be kept within a predetermined range in the stabilized state even if SOC estimation is performed while the battery voltage is assumed as the open circuit voltage. Consequently, SOC can be estimated with high precision within a predetermined error by a simple and reliable system under stabilized state. | 2009-01-01 |
| 20090001993 | Systems and methods for detecting a faulty ground strap connection - Systems and methods are disclosed for detecting a faulty ground strap connection for a machine hosting a high voltage system. In one embodiment, a fault detection and compensation system includes a ground strap, a DC power supply electrically referenced to a machine frame, a leakage detection switch connected to the machine frame, a current source controlled by the leakage detection switch, and a voltage measuring device that measures an offset voltage. The fault detection and compensation system further includes a leakage detection and compensation controller that compensates for the unbalanced fault condition by controlling the leakage detection switch and the current source, and determines whether the ground strap is properly connected to the machine frame. | 2009-01-01 |
| 20090001994 | SEMICONDUCTOR DEVICE INCLUDING FUSE AND METHOD FOR TESTING THE SAME CAPABLE OF SUPPRESSING ERRONEOUS DETERMINATION - In a semiconductor device including first and second power supply terminals, a measuring terminal, and at least one trimming detection circuit connected between the measuring terminal and one of the first and second power supply terminals, the trimming detection circuit is constructed by a current supplying element, a series arrangement of a fuse and a switch element, and a determination circuit. The current supplying element and the series arrangement are connected in series between the measuring terminal and the one of the first and second power supply terminals. The determination circuit has an input connected to a node between the current supplying element and the series arrangement and is adapted to determine whether the fuse is in a connection state or in a disconnection state. A voltage at the other of the first and second power supply terminals is applied to the measuring terminal in a normal mode. | 2009-01-01 |
| 20090001995 | Circuit for detecting connection failure between printed circuit boards - A connection failure detection circuit that detects incomplete connection between printed circuit boards. A supervisory signal source is mounted on a first printed circuit board to produce a supervisory signal. A supervisory signal receiver is mounted on the first or second printed circuit board to receive the produced supervisory signal and determine whether the received supervisory signal carries expected logical values. Wiring lines are arranged so as to form a signal path that crosses connectors between the first and second printed circuit boards at at least one point. | 2009-01-01 |
| 20090001996 | SYSTEMS AND METHODS TO EVALUATE PERMANENT MAGNET MOTORS - Methods and systems for evaluating a permanent magnet motor are provided. The method includes the steps of spinning a rotor of the permanent magnet motor; determining a total harmonic distortion of the permanent magnet motor; and comparing the determined total harmonic distortion of the permanent magnet motor with a baseline total harmonic distortion. | 2009-01-01 |
| 20090001997 | SYSTEMS AND METHODS FOR DETERMINING A TOTAL ACID NUMBER ASSOCIATED WITH BIODIESEL IN A MIXTURE OF BIODIESEL AND PETRODIESEL - Systems and methods for determining a total acid number associated with biodiesel in a mixture of biodiesel and petrodiesel are provided. The method includes receiving an oscillatory signal at an inductance-capacitance-resistance circuit. The circuit has a sensing element fluidly communicating with the mixture of biodiesel and petrodiese. The method further includes generating a resonant current at a resonant frequency utilizing the circuit in response to the oscillatory signal. The method further includes determining a dielectric constant value indicating a dielectric constant associated with the biodiesel in the mixture based on the resonant frequency of the resonant current, utilizing a microprocessor. The method further includes determining a concentration value indicating a concentration of the biodiesel in the mixture based on an amplitude of the resonant current and the dielectric constant value, utilizing the microprocessor. The method, further includes determining the total acid number associated with the biodiesel in the mixture based on the amplitude of the resonant current or the resonant frequency, and the concentration value, utilizing the microprocessor. | 2009-01-01 |
| 20090001998 | Capacitance Detecting Apparatus - A capacitance detecting apparatus which can detect the change in minute capacitance of a measuring object with high sensitivity comprises a signal generator, a differential amplifying circuit, and a detecting unit. The signal generator generates a probe signal w(t) to be applied to one end of the measuring object. The differential amplifying circuit amplifies differentially a response signal v | 2009-01-01 |
| 20090001999 | Proximity Sensor with Connection Hole, and Method for Manufacturing the Same - The present disclosure relates to a capacitive sensor film ( | 2009-01-01 |
| 20090002000 | FAILURE ANALYSIS METHOD AND FAILURE ANALYSIS APPARATUS - Failure analysis method includes performing fixed radiation of semiconductor chip (wafer) by photocurrent generation laser beam, scanning and radiating a region to be observed on semiconductor chip by heating laser beam, detecting, by a SQUID fluxmeter, current change generated in the semiconductor chip by radiating the photocurrent generation laser beam and the heating laser beam, and analyzing failure of the semiconductor chip based on current change detected by the SQUID fluxmeter. Radiation of photocurrent generation laser beam and heating laser beam are performed from a back surface side of the LSI chip, and detection by the SQUID fluxmeter is performed on a front surface side of the LSI chip. In analysis of failure of the LSI chip, image processing is performed in which a signal outputted from the SQUID fluxmeter is made to correspond to a scanning point. Visualization of defects is possible. | 2009-01-01 |
