| 44th week of 2009 patent applcation highlights (10-29-09/10-29-09_18) part 18 |
| Patent application number | Title | Published |
|---|
| 20090267526 | ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE - A display device includes a display panel, a power transmitting member and a heat diffusing member. The display panel includes a base substrate, a power input part, a power signal line and a display element. The base substrate has an upper surface and a lower surface opposite the upper surface. The power input part is formed in an outer peripheral area of the upper surface. The power signal line is electrically connected to the power input part. The display element is electrically connected to the power signal line and generates light based on a power signal transmitted via the power input part. The power transmitting member is electrically connected to the power input part to transmit the power signal to the power input part. The heat diffusing member is disposed on the lower surface, and includes a guide groove into which the power transmitting member is disposed. | 10-29-2009 |
| 20090267527 | System For Supplying In-Series Connected Light Sources - A supply system for light sources connected in series is powered by one power line (SE), and a plurality of adjustment units (UR | 10-29-2009 |
| 20090267528 | LAMP DRIVING CIRCUIT - A lamp driving circuit ( | 10-29-2009 |
| 20090267529 | Circuit Arrangement and Method for the Operation of a High-Pressure Gas Discharge Lamp - Disclosed is a circuit arrangement for supplying a lamp wattage to a high-pressure gas discharge lamp (Lp) in the form of an alternating current having an operating frequency, said operating frequency being frequency-modulated within large limits. The time characteristic of the operating frequency is selected such that more power is supplied to the lamp at greater frequencies, thus reducing the risk of exciting acoustic resonance in the lamp. Amplitude modulation through the frequency response of an interface (L | 10-29-2009 |
| 20090267530 | BACKLIGHT MODULE FOR DISPLAYS - A backlight module includes a light-emitting unit, and a controller to receive a first control signal and generate a second control signal to control the light-emitting unit. The controller controls a frequency of the second control signal according to a duty cycle of the first control signal. | 10-29-2009 |
| 20090267531 | Arrangement for Driving LED Cells - A driving arrangement for feeding a current generated by a high frequency generator ( | 10-29-2009 |
| 20090267532 | DIMMABLE CONTROL CIRCUIT - The present invention relates to a dimmable control circuit, comprising: an ac power source; a transformer; a rectifier circuit; a dimmable control chip; a voltage dividing circuit; a dimmable switch; a first resistor; a second resistor; and a half bridge power driving circuit, capable of outputting signals to drive a fluorescent tube, characterized in that said dimmable switch has a coactive variable resistor connected in parallel with said first resistor and said second resistor, and both said first resistor and said second resistor have the negative resistance temperature coefficient to achieve low temperature startup and high temperature operation. | 10-29-2009 |
| 20090267533 | EXPANDABLE LED MODULE FOR ARBITRARILY DISPLAY ASSEMBLY - An expandable LED module for arbitrary display assembly, comprises: a print circuit board, used to carry the following devices; at least a light emitting diode, disposed on said print circuit board; a first connecting device, disposed on one side of said print circuit board and coupled to said light emitting diode; and a second connecting device, disposed on the other side of said print circuit board, coupled to said light emitting diode, and capable of interconnecting with said first connecting device, wherein said first connecting device and second connecting device can be utilized to expand said LED modules to accomplish any assembly indicating figures, words, numbers, or symbols. | 10-29-2009 |
| 20090267534 | LIGHT EMITTING DIODE ASSEMBLY - A circuit in accordance with one embodiment of the invention can include a light emitting diode (LED) assembly comprising a plurality of LED channels that are controlled independently with a switch mode driver. The circuit also includes N+1 wires coupled to said LED assembly, where N is equal to the number of said plurality of LED channels of said LED assembly. | 10-29-2009 |
| 20090267535 | AC POWER SOURCE APPARATUS - An AC power source apparatus includes an inverter | 10-29-2009 |
| 20090267536 | Fluorescent lamp driver circuit - A fluorescent lamp driver circuit is provided. The fluorescent lamp driver circuit uses reversed current detecting signal to achieve feedback control and circuit protection so as to simplify the driver circuit and reduces the number of the required electronic components. The driver circuit needs a single control unit to control the whole circuit, which not only reduces cost, but also simplifies circuit design. | 10-29-2009 |
| 20090267537 | Motion activated removable blinking shoe light - A motion activated removable waterproof multi-colored blinking shoe light comprising a decorative top which attaches to a shoe by means of any appropriate fastening means such as a thin rubber or plastic snap, loop for receiving a shoe lace, any other loop, clasp, or pinching device, for example, is provided. | 10-29-2009 |
| 20090267538 | LIGHTING SYSTEM FOR AVIONICS APPLICATIONS AND CONTROL METHOD THEREOF - Disclosed herein is a lighting system, in particular for an avionics apparatus, having at least a light source and a control unit coupled to the light source and controlling operation thereof based on a management PWM signal; the management PWM signal may have a shape such as to limit radio frequency emissions. According to an embodiment, the lighting system has an interface unit coupled to the light source and receiving the management PWM signal from the control unit; during a lighting management mode, the management PWM signal carries management information for controlling the light source, and the interface unit is operable to decode the management information, for driving the light source; in particular, the control unit codes the management information using a first waveform parameter of the management PWM signal, and at least a second waveform parameter of the management PWM signal, different from the first waveform parameter. According to a further embodiment, the lighting system has at least one storage element coupled to the light source, and a transmission protocol is associated to the management PWM signal, envisaging a bidirectional communication between the control unit and the interface unit, by means of which management data are read from, and/or written to, the storage element. | 10-29-2009 |
| 20090267539 | BACKLIGHT MODULE - The invention provides a backlight module comprising a plurality of lighting units and at least one balance transformer. Each of the lighting units comprises a first electrode terminal and a second electrode terminal, and the first electrode terminals are coupled to a power source. The at least one balance transformer is coupled to at least one of the second electrode terminals. The primary side of the at least one balance transformer could be connected to each other to form a close loop. Accordingly, the backlight module could be used for large size panel. | 10-29-2009 |
| 20090267540 | Modular Lighting Systems - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 10-29-2009 |
| 20090267541 | LED LAMP CONTROL CIRCUIT HAVING POWER SAVING FUNCTION AND POWER SAVING CONTROL METHOD THEREOF - A light emitting diode (LED) lamp control circuit having power saving function includes a control switch, a LED lamp, a battery, and a controller. The battery is connected to the LED lamp to supply power via the control switch. The controller is connected to the control switch and the battery to detect voltage values of the battery and control the control switch. The controller outputs different control signals to control the switching time of the control switch to drive the LED lamp to emit light at different intensity according to the voltage value of the battery. | 10-29-2009 |
| 20090267542 | BETATRON WITH A VARIABLE ORBIT RADIUS - A betatron, especially for an X-ray testing apparatus is provided that includes a rotationally symmetrical inner yoke having two interspaced parts, at least one round plate that is arranged between the inner yoke parts in such a way that the longitudinal axis thereof coincides with the rotational symmetrical axis of the inner yoke, an outer yoke connecting the two inner yoke parts, at least one main field coil, a toroidal betatron tube arranged between the inner yoke parts, at least one tune coil in the region of the at least one round plate, and an electronic control system for controlling a current flow through the tune coil during the injection phase of the electrons into the betatron tube. | 10-29-2009 |
| 20090267543 | BETATRON WITH A REMOVABLE ACCELERATOR BLOCK - A betatron is provided, particularly in an x-ray inspection station, comprising an accelerator block that is provided with a rotationally symmetrical inner yoke composed of two spaced-apart pieces, at least one main field coil, and a toroidal betatron tube which is disposed between the pieces of the inner yoke. The betatron further comprises an outer yoke which embraces the accelerator block, connects the two pieces of the inner yoke, and has at least one lateral opening, as well as a lead shield that accommodates the accelerator block and the outer yoke. The outer yoke is composed of at least two parts which are movable relative to one another between an open and a closed position. The accelerator block can be laterally removed from the opening of the outer yoke that is in the open position. | 10-29-2009 |
| 20090267544 | MOTOR CONTROL CIRCUIT AND OPERATION METHOD THEREOF - A motor control circuit for controlling a motor includes a brake circuit and a control circuit. The brake circuit is for making the motor enter a braking state. The control circuit is for detecting a residual energy of the motor in the braking state. When the residual energy conforms to a predetermined criterion, the control circuit makes the motor exit the braking state. | 10-29-2009 |
| 20090267545 | METHOD AND ARRANGEMENT IN CONNECTION WITH A BRAKE CHOPPER - A method of controlling a brake chopper and a control arrangement, the brake chopper being connected between the positive and the negative rails of an intermediate voltage circuit feeding an inverter bridge, wherein current measurement means are arranged between a DC voltage source and the brake chopper and adapted to measure DC current flowing in the intermediate voltage circuit, which method comprises steps of forming with the inverter bridge an output voltage to a load connected to the output of the inverter bridge, determining a time instant when the DC current of the intermediate circuit is sampled, and preventing the use of the brake chopper at the determined time instant. | 10-29-2009 |
| 20090267546 | MOTOR CONTROL DEVICE, MOTOR DRIVE SYSTEM, WASHING MACHINE, AIR CONDITIONER AND METHOD OF CHANGING MAGNETIZATION AMOUNT OF PERMANENT MAGNET MOTOR - A motor control device includes a magnetization control unit energizing a motor winding to change magnetic flux content of permanent magnet motor, a current detector detecting current supplied to the motor, a vector control unit including a speed/position estimation unit carrying out an operation to estimate a motor rotational speed and rotational position, the vector control unit carrying out a vector control of the motor, an induced voltage detector detecting an induced voltage of the motor based on the rotational speed, motor currents obtained by the vector control unit, output voltages of the drive unit, a winding inductance or the motor constant and a winding resistance, an induced voltage command determining unit determining an induced voltage command based on the motor rotational speed and output torque, and a magnetization current determining unit determining an amount of energization based on the induced voltage of the motor and the induced voltage command. | 10-29-2009 |
| 20090267547 | MOTOR CONTROL DEVICE AND MAGNETIC POLE POSITION ESTIMATION PRECISION CONFIRMING METHOD - A motor control device includes a dq-axis current control unit for generating a dq-axis voltage reference based on a dq-axis current reference and a dq-axis current signal, an initial magnetic pole position estimation unit for estimating a magnetic pole position of the motor upon power-on to generate a magnetic pole position signal, and a magnetic pole position estimation precision confirming unit for supplying a current in a d-axis direction after generation of the magnetic pole position signal with the initial magnetic pole position estimation unit, and checking an error of the magnetic pole position signal based on an angle of movement of the motor. | 10-29-2009 |
| 20090267548 | SWITCHED RELUCTANCE MOTOR AND CONNECTION METHOD FOR SENSOR SHUTTER THEREOF - The present invention relates to a switched reluctance motor and a connection method for a sensor shutter thereof. The switched reluctance motor in accordance with the present invention includes a stator; a rotor rotating with respect to the stator centering around a rotational shaft; and a sensor shutter having a sensing part through which a light can be passed and connected to an end portion of the rotational shaft, and a stopping ring is connected to the end portion of the rotational shaft so as to prevent the sensor shutter from being separated. Accordingly, the sensor shutter can be quickly and easily connected and the length of the rotational shaft can be decreased. | 10-29-2009 |
| 20090267549 | BRUSHLESS MOTOR CONTROLLER AND BRUSHLESS MOTOR - A brushless motor controller that controls a brushless motor by determining an energizing timing of a three-phase stator coil based on the rotational position and speed of a rotor. The controller includes a normal timing generation unit, an advancing timing generation unit, and a control switching unit. The normal timing generation unit generates a normal energizing timing. The advancing angle timing generation unit generates an advancing angle energizing timing advanced by a predetermined amount from the normal energizing timing and a final advancing angle energizing timing delayed by a delay amount from the advancing angle energizing timing. The control switching unit switches rotation control of the motor between a first rotation control executed in accordance with the normal energizing timing and a second rotation control executed in accordance with the final advancing angle energizing timing. | 10-29-2009 |
| 20090267550 | Motor Control Device And Generator Control Device - To estimate a fluctuation component of the torque generated at the motor accurately, a motor control device ( | 10-29-2009 |
| 20090267551 | STEERING CONTROL APPARATUS - A steering control apparatus includes a direct current power source, a three-phase alternating current motor, and a motor driving circuit. An emergency switching element is provided on at least two phases of a three-phase power supply line connected to the three-phase alternating current motor within the motor driving circuit, and the emergency switching element is turned off when an abnormality occurs such that the motor driving circuit is disconnected from the three-phase alternating current motor. The emergency switching element is a MOSFET, and the MOSFETs are provided in pairs in each of the two phases of the three-phase power supply line. Further, parasitic diodes of the pairs of MOSFETs are disposed in opposite orientations to each other. | 10-29-2009 |
| 20090267552 | Soft Starting Method and System Thereof in the Way of Wave-Skipping with Stepped Frequency and Stepless Voltage Regulating for a Motor - The invention relates to a soft starting method and system thereof in the way of wave-skipping with stepped frequency and stepless voltage regulating for a motor which can be applied to the large torque starting of AC motor under the condition of a power supply of a industrial frequency supply source and the safe starting of higher load. Trigger signals generated by a control system, in the soft starting method of the invention, act on five sets of anti-parallel thyristor valves connected between the power supply and the motor to conduct a pair of thyristors thereof according to a set frequency and sequence, and the motor is started from a standstill status to full speed in the way of wave-skipping by controlling the sets of the thyristor valves. The method may improve the starting torque for more than 10 times of the traditional motor soft starting of the voltage reduction and control the starting current for about two times of the rated current. The cost thereof is only 20-25% of similar frequency converter. | 10-29-2009 |
| 20090267553 | UNKNOWN - A starting device for an internal combustion engine, especially that of a motor vehicle, comprises:
| 10-29-2009 |
| 20090267554 | DRIVING APPARATUS OF ELECTRIC MOTOR FOR REDUCTION ROLL - There is provided a driving apparatus of an electric motor for a reduction roll that can improve maximization of rolling performance and a speed decrease amount by making maximal use of torque that various electric motors can generate during material entry. The apparatus includes an upper electric motor speed controller that acquires an upper electric motor torque current reference based on a deviation between an actual upper electric motor speed and an upper electric motor speed reference; an upper electric motor torque current limiter and current controller that control torque of the upper electric motor; a lower electric motor speed controller that acquires a lower electric motor torque current reference based on a deviation between an actual lower electric motor speed and a lower electric motor speed reference; a lower electric motor torque current limiter and current controller that control torque of the lower electric motor; and a torque distribution controller provided between the upper and lower electric motor speed controllers and the upper and lower electric motor torque current limiters, that compares the upper and lower electric motor torque current references and a torque current limit value, and when either the upper or lower torque current reference exceeds the torque current limit value, adds that exceeding amount to the other torque current reference. | 10-29-2009 |
| 20090267555 | HARMONIC TORQUE RIPPLE REDUCTION AT LOW MOTOR SPEEDS - Methods and systems are provided for reducing torque ripple in an electric motor. A method comprises receiving a torque command and determining a cancellation current command based on the torque command. The method further comprises generating a harmonic cancellation command based on the cancellation current command, wherein the harmonic cancellation command compensates for a phase shift and an attenuation introduced by a current regulated control module coupled to an inverter coupled to the electric motor. The method further comprises providing the harmonic cancellation command to the current regulated control module, wherein the current regulated control module is configured to control the inverter in response to the harmonic cancellation command and the torque command. | 10-29-2009 |
| 20090267556 | FUEL CELL DRIVE SYSTEM - A motor system is configured by: detecting a duration of idle stop by an idle stop end state detection unit | 10-29-2009 |
| 20090267557 | Method of actuator control - The present invention is related to a method of controlling a device having a calibration process. The calibration process has a partial calibration routine and a calibration routine. A detector within the control system is capable of receiving one or more input signals and determining whether a partial calibration or calibration should occur. The first step in the process involves starting the control method where the detector receives input signals or generates it own data within the detector. The detector also determines whether a partial calibration routine or a calibration routine will take place based upon the value of the input signals received. A partial calibration routine will be performed if the input signals to the detector do not favor a calibration. | 10-29-2009 |
| 20090267558 | Wireless Power Charging System - A non-contact power charging system includes a wireless power transmission apparatus | 10-29-2009 |
| 20090267559 | Mobile electronic equipment and battery charger cradle - Mobile electronic equipment incorporating an induction coil and a battery; and a battery charger cradle for recharging the battery in the mobile electronic equipment. Regarding the charger cradle, a bottom surface of a mounting portion is curved in a U-grooved shape, and a primary coil is incorporated inside the U-grooved bottom surface, with the primary coil being connected to a power source. Regarding the mobile equipment, its rear surface placed on the mounting portion of the charger cradle is curved to match with the U-grooved bottom surface, and the induction coil is incorporated inside the curved rear surface. When the mobile equipment is placed on the mounting portion of the charger cradle, the electric power is carried from the primary coil to the induction coil which are electromagnetically coupled with each other, and the battery in the mobile equipment is recharged by the electric power induced to the induction coil. | 10-29-2009 |
| 20090267560 | Battery pack - The battery pack instead of the size AA battery is loaded in a battery storage of an electronic device. The battery pack includes a battery casing, a plurality of size AAA batteries, a battery holder, a circuit board, and an induction coil electromagnetically connected to a primary coil of a battery charger cradle. The size AAA batteries are accommodated in the battery casing in a spaced-apart manner where a distance between longitudinal axes of the size AAA batteries is larger than a distance between longitudinal axes of the size AA batteries loaded in the battery storage, and a storage space is defined between the adjacent size AAA batteries. With an electronic component, mounted on the circuit board, being disposed in the storage space, the battery pack accommodates the size AAA batteries, the battery holder, the circuit board, and the induction coil in a mutually layered state in the battery casing. | 10-29-2009 |
| 20090267561 | INDUCTION TYPE POWER SUPPLY DEVICE - An induction type power supply device includes a power supply base unit having a connection interface connectable, an oscillator circuit for producing an AC signal upon connection of the connection interface to an electric outlet, a driver circuit for amplifying the AC signal and a primary inductor for obtaining a resonant frequency and releasing the AC signal, and an attached induction device placed on the power supply base unit and having a secondary inductor for receiving the AC signal from the primary inductor by means of magnetic induction, a rectifier filter circuit for converting the AC signal into a DC power supply, a power management circuit for regulating the DC power supply subject to a predetermined voltage and current value and a connection device for the connection of an external mobile electronic apparatus and for outputting the regulated DC power supply from the power management circuit to the connected external mobile electronic apparatus. | 10-29-2009 |
| 20090267562 | PORTABLE BATTERY CHARGER FOR MULTIPLE ELECTRONIC DEVICES - The multiple unit portable battery charger disclosed is a portable, rechargeable refueling station for handheld and mobile electronics. The multiple device portable battery charger is capable of providing a full charge to two electronic devices either simultaneously or individually. Additionally, the battery charger can charge the two devices simultaneously up to three separate times before the battery charger requires recharging. In other words, the battery charger disclosed is capable of charging six or more devices before needing to be recharged itself. | 10-29-2009 |
| 20090267563 | ELECTRONIC DEVICE - An electronic device includes a remote control and a main body. The remote control has two contacting portions. The main body is capable of being controlled by the remote control. The main body has two conductive portions and two power supply terminals for supplying the electrical power to the two conductive portions. The contacting portions of the remote control detachably electrically connect with the conductive portions for charging the remote control. | 10-29-2009 |
| 20090267564 | Charging cabinet assembly for hand held devices - A charging cabinet for hand held devices comprising a cavity defined by a rear wall, top and bottom parallel walls, and opposing side walls, and a front wall hingeably secured to one of the side walls to form a closure door, there being positioned within the cavity of the cabinet, a plurality of shelves for support of a hand held devices, the cabinet having a plurality of 110 volt or 220 volt outlets secured thereto, each of the 110 volt or 220 volt charging outlets having an on/off switch associated therewith to activate and deactivate a particular outlet, there also being a plurality of securing means associated with each shelf for securing excess wire associated with each charger in a compact manner, the charging cabinet being wall mounted or recessed in a wall and connected to a power source. | 10-29-2009 |
| 20090267565 | METHOD AND SYSTEM FOR CELL EQUALIZATION WITH CHARGING SOURCES AND SHUNT REGULATORS - 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. | 10-29-2009 |
| 20090267566 | Car power source apparatus - The car power source apparatus is provided with a series battery array | 10-29-2009 |
| 20090267567 | SYSTEMS AND METHODS FOR SUPPLYING POWER TO AN ELECTRONIC DEVICE - A method which supplies power to an electronic device from a power supply device. The method includes setting a minimum power level of a power supply battery of a power supply device, detecting a current power level of the power supply battery and determining a current supply of the power supply battery, determining if the current supply exceeds a preset minimum power level, setting a required power level for extracting power from the power supply battery, extracting the power from the power supply battery according to a preset required power level, and transferring the power to a power charging battery of the electronic device. A related system is also provided. | 10-29-2009 |
| 20090267568 | CURRENT BREAKING METHOD FOR RECHARGEABLE BATTERY AND BATTERY PACK USING THE SAME - A current breaking method of a rechargeable battery and a battery pack using the same. The current breaking method includes: measuring a current value of a current flowing through a high current path of a rechargeable battery; measuring a duration time of the current flowing through the high current path; setting a permission time for which the current is permitted to flow; and interrupting the current flow when the duration time exceeds the permission time. Thus, the timing for interrupting the current flowing through the high current path of the rechargeable battery is accurately calculated, thereby preventing overheating and explosion of the rechargeable battery. | 10-29-2009 |
| 20090267569 | Charger System and Method - Systems and methods of controlling a charging status indicator in a charging system for a device having a rechargeable power supply are provided. The charging system determines whether a device connected thereto supports remote control of the charging status indicator, and controls the charging status indicator as directed by the device where the device supports remote control of the charging status indicator. | 10-29-2009 |
| 20090267570 | Apparatus for providing boot-up capability signals and associated methods - An apparatus for providing a boot-up capability signal for a portable electronic device, the apparatus configured to determine an amount of charge provided to a battery of the device by a charging process, based around one or more powering events, in order to provide for the boot-up capability signal. | 10-29-2009 |
| 20090267571 | Load current dependent reduction of charge battery current - Circuits and methods to charge batteries of a portable device simultaneously with supplying power to the device for its operation, using a power source with limited maximum current, as e.g. an USB port, have been achieved. The system invented relies upon digital control only. No direct sensing of the current required for the operation of the portable device is required. The control takes care that the sum of the charging current and of the current to run the portable device does not exceed the maximum allowable current of the power source. The current required to run the portable device has precedence over the charging current. | 10-29-2009 |
| 20090267572 | CURRENT LIMITATION FOR A DOUBLE-FED ASYNCHRONOUS MACHINE - In a method and an apparatus for controlling the output or drawn active and reactive power of a double-fed asynchronous machine ( | 10-29-2009 |
| 20090267573 | Power Supplies, Power Supply Controllers, And Power Supply Controlling Methods - A power supply controller is provided. The power supply controller includes a switching device, an inductor, a comparator, and a sensing device. The switching device is coupled to an input power source and switches according to a comparing result. The inductor is coupled between the switching device and an output terminal, and conducts an inductor current. The comparator is coupled to the output terminal, a reference power source and a bias voltage, compares the voltage level of the output voltage and the reference voltage, and outputs the comparing result according to the bias voltage. The sensing device is coupled to the inductor and the comparator, senses the inductor current, generates a sensed voltage according to the inductor current, and adjusts the bias voltage according to the sensed voltage. | 10-29-2009 |
| 20090267574 | SYSTEMS AND METHODS FOR PRODUCING A SUBSTANTIALLY CONSTANT OUTPUT VOLTAGE IN A POWER SOURCE BOOST SYSTEM - Systems and methods for producing a substantially constant output voltage in a power source boost system are provided. A power supply boost circuit includes an output node for supplying an output voltage, a feed forward loop configured to be coupled to a load and a power source, and a feedback loop including a voltage limiter coupled to the feed forward loop and the output node. One power source boost system includes the above power source boost coupled to a load and a power source. A method includes the steps of comparing, via a feedback loop, a constant voltage to a reference voltage, and stabilizing a power source boost system over a range of input voltages and load variations. The stabilizing step includes the step of limiting, via a limiter, a voltage supplied to a feed forward loop to a predetermined range of voltages based on the comparing step. | 10-29-2009 |
| 20090267575 | DEVICE AND METHOD FOR DETECTING ZERO CROSSING AND VOLTAGE AMPLITUDE FROM SINGLE PULSE SIGNAL - A device and method for detecting a zero crossing and voltage amplitude of a commercial power source voltage inputted to an electronic device, from a single pulse signal are disclosed. The apparatus for detecting a zero crossing and a voltage amplitude from a single pulse signal includes: a first calculation unit that compares the commercial power source voltage to a first reference voltage to determine whether or not the commercial power source voltage is smaller than the first reference voltage; a second calculation unit that compares the commercial power source voltage to a second reference voltage smaller than the first reference voltage to determine whether or not the commercial power source voltage is larger than the second reference voltage; a pulse output unit that outputs a pulse if the commercial power source voltage is smaller than the first reference voltage but larger than the second reference voltage; and a detecting unit that detects a zero crossing and a voltage amplitude by analyzing the pulse which has been outputted from the pulse output unit. | 10-29-2009 |
| 20090267576 | POWER CONVERTER WITH SNUBBER - A buck or boost converter, which includes a first inductor, a controlled switch, a main diode, and an output capacitor, also includes a snubber circuit to reduce losses. The snubber circuit includes a second inductor in a path in series with the switch and main diode of the converter, a series-connected resistor and diode connected directly in parallel with the second inductor, and a capacitance in parallel with the main diode and which can be constituted partly or entirely by parasitic capacitance of the main diode. | 10-29-2009 |
| 20090267577 | High voltage start-up circuit with constant current control - A high voltage start-up circuit with constant current control applied to a switching mode power converter is provided. The high voltage start-up circuit includes a high voltage junction transistor, a control transistor, a current detecting resistor and a bias resistor. The drain of the junction transistor is connected to a high power supply, the gate of the junction transistor is connected to the drain of the control transistor, and the source of the junction transistor is connected to the current detecting resistor. The voltage drop crossing the current detecting resistor is kept constant to have the junction transistor output a constant current. The bias resistor which is connected between the gate of the junction transistor and the output end of the high voltage start-up circuit has the gate to source bias voltage of the junction transistor kept constant to output constant current. | 10-29-2009 |
| 20090267578 | Static phase shedding for voltage regulators based upon circuit identifiers - Systems and methods are disclosed that provide static phase shedding techniques to improve the efficiency of multi-phase voltage regulators within information handling systems by selecting the number of active phases for the multi-phase voltage regulators using circuit identifiers (IDs) for circuitry configured to be powered by the multi-phase voltage regulators, such as central processing units (CPUs). In one embodiment, processor identifier information related to installed CPUs is used to control the voltage regulator (VR) phase number to provide static phase shedding. This VR control can be implemented in a variety of ways, including the use of conventional analog multi-phase VR controllers and/or digital VR controllers. Dynamic phase shedding can also be used in conjunction with this static phase shedding to further reduce the number of active phases when a processor operates in a low power mode. | 10-29-2009 |
| 20090267579 | VOLTAGE REGULATOR - A voltage regulator with an adaptive bandwidth, including a first buffer chain, a voltage generating unit, a trimming capacitor unit, a second buffer chain, and a control unit. The first buffer chain delays a clock signal using an external voltage as a supply voltage. The voltage generating unit generates a regulated voltage on the basis a reference voltage. The trimming capacitor unit controls a load capacitance of the voltage generating unit. The second buffer chain delays the clock signal using the regulated voltage as a supply voltage. The control unit adjusts the load capacitance by detecting a delay difference of clocks output from the first and second buffer chains. | 10-29-2009 |
| 20090267580 | DC-DC CONVERTER WITH SWITCHABLE ESTIMATORS - A DC-DC converter is provided with a first estimator unit (RAE, RLPF, RHPF) for performing an accurate control signal estimation and a second estimator unit (FEU, ΔVEU) for performing a fast control signal estimation. In addition, a switching unit (SU) is provided for switching to an output of the first estimator unit (RAE, RLPF, RHPF) during almost constant control signal conditions and for switching to an output of the second estimator unit (FEU, ΔVEU) during changing control signal conditions to provide an estimation on the required control signal. | 10-29-2009 |
| 20090267581 | Hybrid switched mode/linear mode power amplifier control - In one aspect of the exemplary embodiments of this invention a method includes determining, based at least in part on a number of resource blocks to be transmitted, where the resource blocks may be spectrally contiguous or spectrally non-contiguous, a ratio of power to be provided by a switched mode power supply to power to be provided by a linear mode power supply; controlling the switched mode power supply and the linear mode power supply in accordance with the determined ratio to supply a total amount of power and providing the total amount of power to a supply voltage input of a polar transmitter. | 10-29-2009 |
| 20090267582 | SELF-TUNING DIGITAL CURRENT ESTIMATOR FOR LOW-POWER SWITCHING CONVERTERS - A switched mode power can use a digital controller to control the switching of the at least one switch of the switched mode power supply. The current through the power inductor can be estimated using a self-tuning digital current estimator. | 10-29-2009 |
| 20090267583 | Switching power supply apparatus with current output limit - A switching power supply apparatus with current output limit, which utilizes a voltage sampling controller for sampling the feedback voltage to acquire a knee voltage. Moreover, the knee voltage is computed by the square-root operation and error elimination operation respectively. According to the result of the computing, the switching of the power switch is controlled so as to stabilize the output voltage and limit the output current. | 10-29-2009 |
| 20090267584 | TRANSIENT DETECTION CIRCUIT - A transient detection circuit coupled between a first power line and a second power line and including a first control unit, a setting unit, and a voltage regulation unit. The first control unit generates a first control signal. The first control signal is at a first level when an electrostatic discharge (ESD) event occurs. The first control signal is at a second level when the ESD event does not occur. The setting unit sets a first node. The first node is set at the second level when the first control signal is at the first level. The voltage regulation unit regulates the first node. The voltage regulation unit regulates the level of the first node at the second level when the first control signal is at the second level. | 10-29-2009 |
| 20090267585 | CASCODE CURRENT MIRROR CIRCUIT, BANDGAP CIRCUIT, REFERENCE VOLTAGE CIRCUIT HAVING THE CASCODE CURRENT MIRROR CIRCUIT AND THE BANDGAP CIRCUIT, AND VOLTAGE STABILIZING/REGULATING CIRCUIT HAVING THE REFERENCE VOLTAGE CIRCUIT - A cascode current mirror circuit and a bandgap circuit are provided. The circuits are used together and function as a reference voltage circuit. The reference voltage circuit outputs a reference current resistant to temperature variation and ripple-voltage. Accordingly, a voltage stabilizing/regulating circuit corrects error voltage precisely and promptly, and the resultant voltage is temperature insensitive and ripple-voltage-independent. | 10-29-2009 |
| 20090267586 | CIRCUIT METHOD FOR PULLING A POTENTIAL AT A NODE TOWARDS A FEED POTENTIAL - A circuit for pulling a potential at a node towards a feed potential present at a potential feed comprises a first transistor comprising controllable paths and a resistive element, wherein the conductive paths of the first transistor and the resistive element are coupled in series between the potential feed and the node. The circuit further comprises a control element configured to control the first transistor to change a resistance of the controllable conductive path of the first transistor depending on a voltage drop at the resistive element. Furthermore, a method for pulling a potential at a node towards a feed potential. | 10-29-2009 |
| 20090267587 | POWER SUPPLY DEVICE AND SWITCHING POWER SUPPLY DEVICE - In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal. | 10-29-2009 |
| 20090267588 | METHOD AND APPARATUS TO DYNAMICALLY CONTROL IMPEDANCE TO MAXIMIZE POWER SUPPLY - An apparatus and method for dynamically controlling impedance to maximize the transfer of energy from energy source(s) to load(s). In a system with a load, an energy source, and a power distribution network (PDN) coupled between the energy source and the load, system conditions and environmental changes of the system are monitored. Using a variable impedance circuit, the impedance of the PDN can be dynamically controlled such that the transfer of energy from the energy source(s) to the load(s) is increased. | 10-29-2009 |
| 20090267589 | CIRCUIT AND APPARATUS FOR DETECTING ELECTRIC CURRENT - A circuit for detecting electric current is provided. The circuit includes a MOSFET having a gate terminal, a source terminal, and a drain terminal, the drain terminal and the source terminal are connected in series in a loop through which an electric current flows. The circuit also includes a bias circuit, configured to generate a bias voltage at a gate terminal of the MOSFET to make the MOSFET operate in the linear region, and a voltage detection circuit, connected to the drain terminal and the source terminal of the MOSFET to detect a voltage difference between the drain terminal and the source terminal of the MOSFET, the voltage difference being used as a detection signal in the circuit for detecting the electric current. | 10-29-2009 |
| 20090267590 | METHOD OF ENABLING TRIGGERING AN OSCILLOSCOPE - A method of enabling triggering an oscilloscope includes placing a tip portion of a probe, electrically connected to the oscilloscope, on an electrical circuit, applying pressure to the probe tip, and establishing an electrical contact inside the probe as a result of pressure applied to the probe tip. The electrical contact closes an electrical circuit that triggers the oscilloscope. | 10-29-2009 |
| 20090267591 | SYSTEMS AND METHODS FOR DOPPLER SHIFT COMPENSATION IN OFDMA COMMUNICATIONS - Systems and methods for determining the relative velocity of a subscriber station with respect to a basestation are provided. In one embodiment, the method comprises sending a query message from a basestation to a subscriber station, the query message requesting a current modulation frequency used by the subscriber station to modulate transmissions; receiving a response to the query message, the response including the current modulation frequency; determining an offset between the current modulation frequency and a target carrier frequency value; and calculating a velocity of the subscriber station based on the offset. | 10-29-2009 |
| 20090267592 | SYSTEMS AND METHODS FOR DETERMINING ENTRY OF A NAVIGATION SYSTEM INTO A STRUCTURE - Systems and methods are operable to determine that a navigation system has entered a structure. An exemplary embodiment monitors a magnetic field at an outdoor position, monitors a magnetic field at a current position, compares a characteristic of the monitored magnetic field at the current position with a corresponding characteristic of the outdoor magnetic field, and determines entry into the structure at least as a function of a change in the determined characteristic of the monitored magnetic field from the corresponding characteristic of the outdoor magnetic field. | 10-29-2009 |
| 20090267593 | RELATIVE ROTATIONAL POSITION DETECTION APPARATUS - A first sensor detects a rotational position of a first shaft in a noncontact fashion and generates a first output signal by phase-shifting a reference A.C. signal in accordance with the detected rotational position of the first shaft. A second sensor detects a rotational position of a second shaft in a noncontact fashion and generates a second output signal by phase-shifting the reference A.C. signal in accordance with the detected rotational position of the second shaft. First and second timing signals corresponding to phase shift amounts of the first and second output signals are output via respective output lines. Relative rotational position detection data, representing a rotational difference or amount of torsion between the two shafts, appears in a time difference between the first and second timing signals. A PWM signal, having a pulse width corresponding to a time difference between the first and second timing signals, may be output. | 10-29-2009 |
| 20090267594 | POSITION SENSOR AND POSITION SENSOR ARRANGEMENT FOR A CONTACTLESS DETERMINATION OF A POSITION BY MEANS OF REDUNDANT MAGNET-SENSITIVE SENSOR ELEMENTS - The present invention creates a position sensor and a position sensor arrangement on the basis of magnetic field sensing sensors maximizing reliability against defects and external interference signals and providing redundancy, in particular for shift-by-wire systems in automobiles. The invention includes various aspects and preferred embodiments that including individual sensors that can either only measure the direction of the magnetic field or in addition to that the absolute value of the magnetic field. The specific embodiments depend on the desired diagnostic options, redundancy and compensation capabilities both as to interfering magnetic fields and sensor failures or non-plausible output signals of individual sensors. An evaluation unit can be provided for compensating measurement deviations. | 10-29-2009 |
| 20090267595 | MAGNETIC ENCODER - A magnetic encoder, which is formed annularly of a magnetic rubber material, is magnetized to be multipolar in the circumferential direction and has a detected surface read by a magnetic sensor, is provided with a three-dimensional shape ( | 10-29-2009 |
| 20090267596 | EFFECTIVE-INDUCTANCE-CHANGE BASED MAGNETIC PARTICLE SENSING - The invention relates to an integrated measurement system to detect a quantity of magnetic particles in a sample. The measurement system includes a substrate. An electromagnetic (EM) structure disposed on the surface of the substrate is configured to receive a sample including the magnetic particles in proximity thereof. The integrated measurement system also includes an electrical current generator disposed on the surface of the substrate which is electro-magnetically coupled to the EM structure. The electrical current generator is configured to cause an electrical current to flow in the EM structure. The integrated measurement system also includes an effective inductance sensor disposed on the surface of the substrate which is configured to measure a selected one of an effective inductance and a change in effective inductance. The invention also relates to a method to determine the number of and/or the locations of the magnetic particles in a sample. | 10-29-2009 |
| 20090267597 | 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. | 10-29-2009 |
| 20090267598 | DEVICE FOR INSPECTING TANGENTIAL RECESSES IN A ROTOR DISK - An inspection device for inspecting tangential recesses in a rotor disk by means of eddy currents. The device comprises a probe containing a plurality of sensors arranged to acquire a plurality of data series during a scan stroke, and the probe is mounted on moving equipment that is slidable in a support that is provided with two positioning members for co-operating with recesses neighboring the recess for inspection. | 10-29-2009 |
| 20090267599 | MRI Display with Contrast Navigation Window - In a method of displaying settings for a Magnetic Resonance (MR) image, a visual marker is displayed in a window. The coordinates of the visual marker correspond to T1 weighting of the MR image along a first axis of a display and correspond to T2 weighting of the MR image along a second axis of a display window. | 10-29-2009 |
| 20090267600 | Array coil and magnetic resonance imaging apparatus - ABSTRACT OF THE DISCLOSURE An array coil including at least three conductive elements arranged at predetermined intervals, each of the conductive elements being in the form of a loop, and a plurality of switches that enable the conductive elements to be connected together according to a plurality of connecting patterns. | 10-29-2009 |
| 20090267601 | RF RECEIVE COIL ASSEMBLY WITH INDIVIDUAL DIGITIZERS AND MEANS FOR SYNCHRONIZATION THEREOF - The invention relates to a device ( | 10-29-2009 |
| 20090267602 | SYSTEM AND METHOD FOR ACCELERATED MR IMAGING - A system and method for accelerated MR imaging includes a magnetic resonance imaging (MRI) system having a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly comprising at least one RF transmit coil and comprising multiple coils to acquire MR images. The MRI apparatus also has a computer programmed to excite multiple pencil regions by use of an under-sampled echo-planar excitation trajectory and acquire MR signals simultaneously on multiple channels of the RF coil assembly. The computer is also programmed to separate contributions from the various multiple pencil regions by use of parallel imaging reconstruction. | 10-29-2009 |
| 20090267603 | System and method for synthesizing crossing ADC distributions via reassembly of multiple k-spaces - A method for synthesizing crossing ADC distributions via reassembly of multiple k-spaces is disclosed. The method includes the steps of scanning a test object having a plurality of anisotropic structures to acquire a first set of DTI data using gradient directions; rotating the gradient directions by an angle α; repeating the step of scanning the test object to acquire a second set of DTI data; creating a composite data set from the first and second sets of data; and applying an inverse Fourier transform to the composite data set. | 10-29-2009 |
| 20090267604 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - A magnetic resonance imaging apparatus includes a data acquisition unit and an image data generating unit. The data acquisition unit acquires MR signals for imaging by an imaging scan with applying a frequency-selective or slice-selective radio frequency intermediate pulse for controlling a contrast and a spoiler gradient magnetic field for suppressing unnecessary signal component after applying al least one of radio frequency excitation pulses. The image data generating unit generates image data based on the magnetic resonance signals. | 10-29-2009 |
| 20090267605 | ARRANGEMENT TO CONNECT GRADIENT CURRENT FEED LINES IN A MAGNETIC RESONANCE APPARATUS - An arrangement for connection of gradient current feed lines in a magnetic resonance apparatus has an electrically insulating connection plate with at least one connection device. The connection device is fashioned to electrically connect a first gradient current feed line with a second gradient current feed line and is associated with a gradient coil that forms a gradient field via a supplied gradient current for a spatial direction. The supply ensues via the two gradient current feed lines connected with one another. A base plate that is fashioned for fastening the connection plate to a magnet housing of the magnetic resonance apparatus. An electrically insulating layer to damp vibrations of the connection plate is arranged between the base plate and the connection plate. | 10-29-2009 |
| 20090267606 | BIRDCAGE-LIKE TRANSMITTING ANTENNA FOR MRI - A transmission antenna for magnetic resonance applications has a birdcage-like structure that includes antenna rods proceeding between first and second terminating elements respectively located at opposite ends of the antenna rods. A detuning circuit is located at the second terminating element. Either the second terminating element is formed as a completely continuous short circuit ring and the detuning circuit is arranged between the ends of the antenna rods and the second terminating element, or the second terminating element has a number of ferrule segments, between which the detuning circuit is arranged. The second terminating element has a larger cross-section than a the first terminating element. | 10-29-2009 |
| 20090267607 | ARRANGEMENT TO ADJUST THE HOMOGENEITY OF A BASIC MAGNETIC FIELD - An arrangement for the adjustment of the homogeneity of a basic magnetic field in a magnetic resonance apparatus includes gradient coil support fashioned to support a gradient coil system. The gradient coil support has at least one channel that is fashioned to accommodate an associated shim tray. The shim tray is designed to accommodate ferromagnetic shim elements at predetermined positions in order to adjust the homogeneity of the basic magnetic field of the magnetic resonance apparatus. The shim tray has a first locking element coupled with it. The channel has a second locking element, and the first and second locking element are shaped such that both are positively connected with one another by a force produced by the basic magnetic field of the magnetic resonance apparatus upon activation thereof. | 10-29-2009 |
| 20090267608 | Shallow marine electromagnetic hydrocarbon prospecting - A method for determining electrical properties of a submarine petroleum fluid-bearing formation ( | 10-29-2009 |
| 20090267609 | Battery Connection Detecting Device and Image Forming Apparatus Including the Same - A battery connection detecting device includes a connecting unit, to which a battery is connected, a voltage detecting unit that detects a voltage value of the connecting unit, the voltage value detected by the voltage detecting unit being a detection voltage value, a switching unit that switches supply of charging power to the battery connected to the connecting unit based on the detection voltage value, and a connection detecting unit that compares at least one predetermined voltage value with at least one of the detection voltage value before the switching unit switches the supply of the charging power and the detection voltage value after the switching unit switches the supply of the charging power in order to detect whether or not the battery is connected to the connecting unit. | 10-29-2009 |
| 20090267610 | NETWORK DEVICE AND METHOD FOR INDICATING SIGNAL POWER TRANSMITTED AND BATTERY CAPACITANCE OF SAME - A network device includes several modules and a microcontroller for indicating working operations of the network device. The network device is configured for outputting a plurality of indicating control signals based on a detected signal power and a detected battery capacitance of the network device. The network device indicates the signal power and the battery capacitance based on the indicating control signals. | 10-29-2009 |
| 20090267611 | APPARATUS AND METHOD FOR DETERMINING LOCATION OF PHASE-TO-PHASE FAULT OR THREE-PHASE FAULT - A method and apparatus for determining a distance of a phase-to-phase fault or a three-phase fault on a three-phase electric line, the apparatus ( | 10-29-2009 |
| 20090267612 | ANTENNA CABLE BREAK DETECTOR FOR CONSTRUCTION MACHINE WIRELESS COMMUNICATION APPARATUS AND CONSTRUCTION MACHINE WIRELESS COMMUNICATION APPARATUS - An antenna cable break detector used with a construction machine wireless communication apparatus to detect a break in an antenna cable. The antenna cable | 10-29-2009 |
| 20090267613 | SYSTEMS AND METHODS FOR DETERMINING THE CONFIGURATION OF ELECTRONIC CONNECTIONS - Systems and methods for determining the configuration of a connection between two devices by measuring an electrical characteristic are provided. Using the measured electrical characteristic, a device is able to select an appropriate communication interface, such as serial, Universal Serial Bus (USB), FireWire, parallel, PS/2, etc., and configure itself appropriately. Systems and methods which determine the physical orientation of a connector with respect to another connector may also be provided alone or in combination with such systems and methods for selecting communication interfaces. The physical orientation of a connector can be determined by measuring an electrical characteristic and a device can then configure itself appropriately. In accordance with the principles of the present invention, device designs can decrease in size and cost as well as simplify operation for the end-user. | 10-29-2009 |
| 20090267614 | Physical Property Measuring Method for TFT Liquid Crystal Panel and Physical Property Measuring Apparatus for TFT Liquid Crystal Panel - There is provided a physical property measuring method for a TFT liquid crystal panel, includes an impedance setting step of setting the impedance between the source and drain of a TFT of the TFT liquid crystal panel to be less than or equal to a predetermined value, a voltage application step of applying a voltage that cyclically varies to a liquid crystal layer of the TFT liquid crystal panel. And the method further includes a physical property measuring step of measuring a transient current flowing through the liquid crystal layer to which the voltage that cyclically varies is applied in the voltage application step to measure physical properties of the liquid crystal layer. | 10-29-2009 |
| 20090267615 | System and Method for Sorting Detection of Signal Egress from a Wired Communication System - Issuance of work orders in response to monitoring signal egress from shielding integrity flaws in a cable communication system by detecting received signal strength from a mobile receiver only during rising trends in received signal strength when the mobile receiver is in motion and tracking the maximum received signal strength peak during each rising trend. Rising trends are detected by computing two rolling averages of received signal strength sample of different lengths and offset from each other and applying a threshold to the difference between the rolling averages to provide hysteresis in switching between rising and falling trend detection. Reported peaks are then compared by proximity to each other and their circle of influence determined in accordance with respective signal strengths to determine if newly reported peaks are duplicates of previously reported peaks and duplicate reported peaks are removed or discarded. | 10-29-2009 |
| 20090267616 | S-Parameter Measurement - A method and system utilizing a network analyzer and a test controller for measuring scattering parameters (S-parameters) of a microwave device that rapidly switches through a plurality of states. The test controller sends a trigger to the analyzer, which starts a frequency sweep having substantially the same start and stop frequency, and provides the sweep to the device. The analyzer then measures and stores at least one S-parameter of the device and provides the test controller with a trigger. The test controller updates the device to the next state in a predetermined sequence of states and the above steps are iteratively repeated until S-parameters for all of the states in the sequence have been measured. | 10-29-2009 |
| 20090267617 | APPARATUS AND METHOD FOR MEASURING SALINITY OF A FLUID BY INDUCTANCE - A salinity sensor for sensing or measuring salinity of a static or flowing fluid without contacting the fluid includes magnetic coil with a gapped core and a conduit for the fluid positioned in the gap in the core. The magnetic coil and the portion of the magnetic field produced by the coil that extends through the fluid in the gap are part of an LC or LCR circuit that can be driven to resonant frequency for a fluid of known salinity, which may include, but is not limited to, a fluid having zero salinity, as indicated by a peak output voltage on the circuit. Then, when the salinity of the fluid in the gap changes or a fluid with a different salinity is placed in the gap, the characteristics of the LC or LCR circuit, including inductance L and resonant frequency, change, and such changes can be detected and measured as an indication of the salinity of the fluid in the gap. | 10-29-2009 |
| 20090267618 | CAPACITIVE SENSOR CORE WITH FLEXIBLE HINGE AND SENSOR USING THE SAME - A capacitive sensor core with flexible hinge is disclosed. The capacitive sensor core comprises a main grid plate ( | 10-29-2009 |
| 20090267619 | Device and method for measuring an electrical property of a fluid flowing through a pipe - The invention relates to a device and a method for measuring an electrical property of fluid flowing through a pipe, comprising at least a first measuring electrode and a second measuring electrode placed in spatial contact with the pipe, wherein the first measuring electrode is received in a body placed inside the inner wall of the pipe, and the first measuring electrode is separated from the inner wall of the pipe by a gap, this gap extending over at least a part of the periphery of the inner wall of the pipe. As a result of these measures the distance between the measuring electrodes is greatly reduced, so that the measurement accuracy increases considerably. The measuring circuit is preferably adapted for repeated successive measurement of the resistance value and the capacitance of the fluid. | 10-29-2009 |
| 20090267620 | FILM THICKNESS MEASUREMENT DEVICE AND METHOD - A film thickness measurement device, which measures the film thickness of an oil film of lubricating oil, formed in a gap between a piston ring and an electrode provided flush with a piston ring sliding surface of a cylinder liner, by detecting the electrostatic capacitance across the gap, employs an electrostatic capacitance detection portion, which charges the electrostatic capacitance by supplying a constant current to the electrode, detects the electrostatic capacitance based on changes in the charging voltage accompanying the charging, and outputs a detection signal indicating the electrostatic capacitance, and a film thickness computation portion, which calculates the film thickness of the oil film based on the electrostatic capacitance indicated by the detection signal input from the electrostatic capacitance detection portion. | 10-29-2009 |
| 20090267621 | Method and device for rapid non-destructive quality control of powdered materials - Method and related device intended for rapid non-destructive testing of powdered materials with low electric conductivity such as cement and cement-based compositions through determination of their electrical properties. The invention involves an electromagnetic method, including an electronic circuit for generating an electric field in a capacitance probe that is inserted into the powder to be tested. Electrical properties of powdered materials are determined on the basis of a set of the values for a set of parameters including quality factor (Q-factor), capacitance, dissipation factor, and dielectric permeability of the material. These parameter values can be related to such characteristics as moisture content, particle size, and material composition. The method and device can indicate the differences between the samples with various quantities of unwanted components or reaction products, and the extent of sample ageing. | 10-29-2009 |
| 20090267622 | System and method for detecting an object at a location - An occupancy detection system includes a signal generator coupled to an electrode, the signal generator configured to output a first signal at a first frequency and a second signal at a second frequency. The system further includes a voltage detection circuit connected to an output terminal of the signal generator and to an input terminal of the electrode, wherein the voltage detection circuit is configured to measure a first voltage responsive to the first signal at the first frequency and a second voltage responsive to the second signal at the second frequency. A control module in communication with the voltage detection circuit is configured to detect a state of occupancy based on the first voltage and the second voltage. | 10-29-2009 |
| 20090267623 | Method and automatic system for non-destructive determination physical-chemical properties of powdered materials - The present invention is a method and related automatic system for non-destructive determination of physical-chemical properties of powdered in particular as related to the quality control of powdered materials used in battery industry, for example determination of carbon monofluoride (CFx) degree of fluorination during the process of CFx synthesis. The invention consists of: scanner, which is used for movable measuring transducer within three co-ordinates; measuring generator containing electro capacitive sensor, which is used as an element of a resonance circuit; base generator similar (identical with) to the measuring one; block for subtraction the frequencies of the measuring and base generators; block of measuring the Q-factor of the resonance circuit together with an electro capacitive sensor; block for identifying extramal point of dependence of capacitive sensor capacitance upon time; block for comparative analysis of the Q-factor of the resonance circuit of the measuring autogenerator and capacitance of capacitive sensor; block for extrapolation of time dependence of capacitance of capacitive sensor at the moment when it is inserted into powder; block for computing the difference between the factual and extrapolated values of capacitance of capacitive sensor while the sensor is being inserted into powder; calibration block and registration block. | 10-29-2009 |
| 20090267624 | METHOD AND APPARATUS FOR ELECTRICAL TESTING - A test apparatus and device under test has a probe that can be located very close to contact pads and that requires very few solder connections. In addition, the probe can be configured to meet any appropriate and desired electrical specification while still using a same circuit board. There is no need to attach discrete components to a circuit board. Thus, by using a configurable probe, a single circuit board may be used with multiple probes or a reconfigurable probe to test for compliance with a variety of different electrical specifications having different requirements. | 10-29-2009 |
| 20090267625 | Probe for testing a device under test - A probe measurement system for measuring the electrical characteristics of integrated circuits or other microelectronic devices at high frequencies. | 10-29-2009 |
