45th week of 2010 patent applcation highlights part 19 |
Patent application number | Title | Published |
20100283393 | LIGHT CONTROL SYSTEM AND METHOD FOR AUTOMATICALLY RENDERING A LIGHTING ATMOSPHERE - The invention relates to the automatic rendering of a lighting scene with a lighting system, particularly the control of the rendering. A basic idea of the invention is to perform rendering of a lighting scene by decomposing a lighting atmosphere to be rendered in elementary light effects, to classify the elementary light effects, and to coordinate the realisation of the classified light effects with the lighting system. An 5 embodiment of the invention provides a light control system ( | 2010-11-11 |
20100283394 | Light Guide for Ambient Light Sensor in a Portable Electronic Device - Disclosed are various embodiments of a light guide and corresponding ambient light sensor, computing device and backlit display for use in a portable electronic device. The various embodiments of the light guide are configured to permit ambient light to be collected efficiently and accurately over wide angles of incidence, even under low-ambient-light conditions. The efficient and accurate collection of ambient light by the various embodiments of the light guide disclosed herein may be employed to more accurately control the amount and degree of backlighting provided to a backlit display, which in turn can be used to conserve valuable battery power in a portable electronic device. | 2010-11-11 |
20100283395 | MULTI-FEED RF DISTRIBUTION SYSTEMS AND METHODS - Improved power distribution architectures for the uniform delivery of single frequency RF power to plasma chambers are disclosed. The architectures include feeding into multiple points across a single large-area electrode, multiple electrodes driving a common plasma discharge as well as multiple coils driving a common plasma discharge. The time-averaged electromagnetic field distribution may be controlled using an array of generator and match (delivery) systems, one of which may be capable of absorbing net power and presenting controlled impedance to the plasma load. In variations, an M+N port network (with M the number of generators and N the number of feed points on the electrode) may be implemented to level the power required from each generator while maintaining a desired field strength distribution. | 2010-11-11 |
20100283396 | LIGHT SOURCE SYSTEM AND LIGHT SOURCE DRIVING CIRCUIT - A light source driving circuit includes a plurality of light-emitting loads, an operational amplifier, a plurality of transistors, an isolation circuit, and a reference circuit. The first ends of each transistor are electrically connected to the plurality of light-emitting loads respectively. The second end of each transistor is electrically connected to a current mirror. The control end of each transistor is electrically connected to the output end of the operational amplifier. The isolation circuit is electrically connected between the negative input end of the operational amplifier and the plurality of transistors. | 2010-11-11 |
20100283397 | METHOD AND SYSTEM FOR HIGH EFFICIENCY, FAST TRANSIENT MULTI-CHANNEL LED DRIVER - System and method for a light emitting diode (LED) driver are disclosed. To supply an LED bus voltage to a large array of LEDs organized in multiple channels where one or more LEDs are connected in series in each channel, an LED driver includes a power converter, a feedback generation circuit, and a phase-division based controller. The power converter is configured for providing the LED bus voltage to the multiple LED channels based on a voltage control signal. The feedback generation circuit is configured for generating a feedback signal based on the LED bus voltage supplied to the multiple LED channels. The phase-division based controller is configured for generating the voltage control signal based on the feedback signal and information from the multiple LED channels. The phase-division based controller divides each pulse width modulation (PWM) of each channel into a tracking phase and a pre-charging phase so that the LED bus voltage supplied to the multiple channels changes between the tracking phase and the pre-charging phase. | 2010-11-11 |
20100283398 | DRIVING DEVICE OF LIGHTING APPARATUS - A driving device of a lighting apparatus includes a control circuit and a power conversion circuit. The power conversion circuit is electrically connected to the control circuit, a first light-emitting diode (LED) unit, and a second LED unit. The power conversion circuit has a switching unit, an electrical isolating unit, and a transformer unit. The electrical isolating unit has an electrical isolating side and a non-electric-isolating side, which is coupled to the electrical isolating side. The non-electrical isolating side is electrically connected to the switching unit. The transformer unit, which is electrically connected to the electrical isolating side, has a first output terminal and a second output terminal. The first output terminal is electrically connected to a positive electrode of the first LED unit and a negative electrode of the second LED unit. The second output terminal is electrically connected to a negative electrode of the first LED unit and a positive electrode of the second LED unit. | 2010-11-11 |
20100283399 | Symmetrical RF Power Supply for Inductively Coupled Electrodeless Lamps - A radio frequency (RF) power supply for an electrodeless lamp includes a pair of DC rails, an RF inverter having power input terminals connected between the rails, a first inductor arranged to inductively couple with an electrodeless lamp, first and second resonance capacitors that each connects a respective one of two input terminals of the first inductor to a same first rail of the pair of DC rails, and a second (ballasting) inductor connecting an output of the RF inverter to one of the two input terminals of the first inductor. Thus, the first inductor is connected in a symmetrical π-filter and supplied by two equal but phase-opposite voltages whose sum is the lamp voltage. The inductance of the ballasting inductor is significantly reduced so that the RF efficiency of the power supply is 96%. | 2010-11-11 |
20100283400 | Method for Controlling a Series Circuit Current of a Lighting Installation at an Airfield or the Like, and a Constant-Current Regulator - Disclosed is a method for controlling a series circuit current of a lighting installation at an airfield or the like, in which case the series circuit current which flows through transformers which are arranged on the secondary side of an output transformer and are connected in series, in order to supply lighting appliances is controlled by means of a thyristor module, which is arranged on the primary side of the output transformer and has a variable trigger angle, in which case, when a control unit is in a constant-current mode, the trigger angle is set in such a manner that a series circuit current which corresponds essentially to a rated output current flows. The invention also relates to a constant-current regulator for carrying out the method. | 2010-11-11 |
20100283401 | System and Method for a Solid State Lighting Network Using a Power System Architecture - A system and method for a solid state lighting network using a power system architecture, having application in a designated area to achieve energy saving control and intelligent management requirements. The present invention primarily enables implementing single or integral control of each LED light emitting device installed within a local area via a control device. The entire system is constructed using existing alternating current power lines, and the control method uses the existing power lines as channels for conveying electronic signals, and implements conversion of control signals. Moreover, alternating current carrier waves are used to complete transmission of the electronic signals, thereby achieving effective control of each LED light emitting device within a local area. | 2010-11-11 |
20100283402 | BACKLIGHT MODULE FOR LCD DEVICE - A backlight module includes a connector capable of performing voltage conversion or a voltage converter capable of transmitting signals. The connector or the voltage converter, disposed between an inverter and a lamp set, receives low-voltage signals generated by the inverter, performs voltage conversion, and outputs high-voltage signals for driving the lamp set. | 2010-11-11 |
20100283403 | Capacitance Reducing Method for a Pulsed Activated Device and Associated Devices - The present invention relates to a capacitance reducing method for a pulsed activated device and associated devices, especially to a pulsed activated device having a capacitor, which improves power factor as well as eliminating the need for large capacitance. The method comprises acts of rectifying an AC voltage to a pulsating DC voltage, sensing a zero-crossing point of the pulsating DC voltage, synchronizing the pulsating DC voltage, setting pulse duration in a pulse period and turning ON and OFF of a pulsed activated device. The device comprises a load, a rectifier, a capacitor, a driver, a controller and an optional PFC circuit. | 2010-11-11 |
20100283404 | Illumination Device with Solid State "Array" Emitters - An illumination device utilizes one or more laser array emitters to provide a compact, high power light source useful for illuminating objects or areas of interest and in searching for items that may fluores when illuminated by light that interacts with material in or on the items. The illumination device is capable of providing a retina safe output at an object based on the distance from the illuminator to the object. | 2010-11-11 |
20100283405 | Device Lighting Apparatus and Method - In accordance with embodiments of the invention, an apparatus and method for device lighting is disclosed. The apparatus and method comprises a key operable for communicating with a computing device. The apparatus further comprises a light emitting device for lighting the key and a selector operable for selecting between a plurality of lighting schemes. More specifically, each of the plurality of lighting schemes defines at least one of colour, intensity and duration of the lighting of the key. | 2010-11-11 |
20100283406 | BI-DIRECTION CONSTANT CURRENT DEVICE - An LED lamp includes a bi-direction constant current device coupled between a power supply and a LED load to provide stable positive and negative currents to the LED load. The bi-direction constant current device includes a pair of current sources face-to-face or back-to-back connected in series between the power supply and the LED load, and two protective elements shunt to the pair of current sources, respectively. | 2010-11-11 |
20100283407 | CIRCUIT FOR COLOR CHANGING LED DEVICES WITH VOLATILE ACTIVE EMISSIONS - A control circuit for color changing LED devices with volatile active emissions and hidden input jacks is disclosed. The circuit allows the device to use variously sized power adapters, and a plurality of colored LEDs positioned so as to emit a colored light show. The circuit also includes a volatile active dispenser to control volatile active emission rates. A hidden input jack is also disposed to provide additional power as required. Thus, the circuit provides the combination of illumination and/or ambient light, colored light shows, volatile active emission control, and combinations thereof, within a single standalone device. | 2010-11-11 |
20100283408 | METHOD AND APPARATUS FOR PROVIDING AN LED LIGHT FOR USE IN HAZARDOUS LOCATIONS - A lighting source that can be deployed in a hazardous environment is disclosed. For example, the lighting source comprises at least one light emitting diode and a power supply for providing power to the at least one light emitting diode. The lighting source also comprises an enclosure for housing the at least one light emitting diode and the power supply, where said lighting source is for deployment in a hazardous environment. | 2010-11-11 |
20100283409 | LED Driver and Start-Up Feedback Circuit Therein - An LED driver includes a start-up feedback circuit, an operating feedback circuit and a multiplexer. The start-up feedback circuit has first terminals for receiving LED feedback voltages each delivered from at least one LED coupled to an output terminal for outputting an output voltage, of the LED driver, and generates a start-up feedback voltage accordingly. The operating feedback circuit has second terminals for receiving the LED feedback voltages, and generates an operating feedback voltage accordingly. The multiplexer selects the start-up feedback voltage for initial boost of the output voltage when the LED driver is initially activated, and selects the operating feedback voltage for following boost of the output voltage when the output voltage increases to a certain value. | 2010-11-11 |
20100283410 | DRIVE CIRCUITS FOR ELECTRO-LUMINESCENT LAMPS - A drive circuit for delivering an AC voltage to an array of electro-luminescent lamps ( | 2010-11-11 |
20100283411 | LIGHT EMITTING DIODE DRIVING DEVICE AND METHOD THEREOF - A light emitting diode (LED) driving device and an LED driving method thereof are provided. The LED driving device includes a voltage generator, a circuit and a compensation circuit. The voltage generator is used to provide a positive voltage and a negative voltage, and the circuit is coupled to the positive voltage and the negative voltage. Herein, the circuit includes a load and an LED which are coupled to each other in series. The compensation circuit is used to sense voltages of two ends of the load, so as to generate a compensation signal and adjust the positive voltage and the negative voltage through the compensation signal. Therefore, voltage stress of the LED driving device is reduced by using the provided positive voltage and the provided negative voltage. | 2010-11-11 |
20100283412 | "Lip Light" Automatically Controlled by the Position of the Head - A lighting device for helmet comprises a helmet including an arm to which are fixed a microphone and a lamp, called “lip light”, lighting with at least one lighting level. The device comprises a head tracking system comprising a computer for measuring and collecting data concerning the attitude of the helmet in motion and its position in space. Lamp activation means are automatically controlled by positions calculated by the computer so that the lip light lights, with one of its lighting levels, when it is oriented in a direction contained within a predefined area. | 2010-11-11 |
20100283413 | METHOD AND DEVICE FOR PROJECTING AT LEAST ONE LIGHT BEAM - A method for projecting at least one light beam may include lengthening at least in part a holding duration for at least one pixel with respect to at least one further pixel. | 2010-11-11 |
20100283414 | MOTOR FOR WASHER, METHOD FOR CONTROLLING THE MOTOR, AND METHOD FOR CONTROLLING THE WASHER - A motor, and a method and apparatus for controlling the motor for a washer are provided. The motor includes a stator on which a plurality of coils are wound and disposed in a circular shape, a rotor having a plurality of permanent magnets spaced apart from the coils by a predetermined distance, and a motor controller performing a vector control method for controlling a current vector applied on a d-q axis rotating coordinate system in a start mode of the rotor to make a current speed of the rotor follow a reference speed of the rotor by comparing the current speed with the reference speed. The motor controller includes a speed/position detector for detecting the current speed and a current position of the rotor using an on/off signal of a hall sensor installed on the stator. | 2010-11-11 |
20100283415 | Motor Drive System with Flux Regulated PM Generator - A method of generating and controlling power for an alternating current (AC) motor by means of at least one controlled permanent magnet machine (PMM) with a permanent magnet (PM) rotor and a stator with a magnetic flux diverter circuit for controlling the output of the PMM, comprises the steps of: rotating the PM rotor at a velocity sufficient to develop a high frequency alternating current (HFAC) power output from the stator; transforming the HFAC output to produce a variable low frequency alternating current (AC) motor control output for the motor; sensing desired motor control parameters; generating a control signal responsive to the sensed parameters; and applying the control signal to the magnetic flux diverter circuit to control the motor control output. | 2010-11-11 |
20100283416 | BRUSHLESS MOTOR DEVICE AND CONTROL DEVICE - A brushless motor device switches between a 120-degree energization method and a 180-degree energization method of advancing an electrical angle by 30 degrees to drive a brushless motor | 2010-11-11 |
20100283417 | METHOD AND DEVICE FOR IDENTIFYING A REVERSING OPERATION IN AN ELECTRIC ACTUATING UNIT OF A VEHICLE - In a method and a device for identifying a reversing operation in an electric actuating unit of a vehicle, once a trapped object is detected, the rotational direction of the electromotive drive is commutated. Sequential pulse interval counter values, derived from a sensor system or data derived from the values is or are written to a ring buffer store and compared with pre-defined reference data patterns. If a match is found, the counter reading of the position counter is corrected in accordance with the pre-defined reference data pattern. This ensures that the counter reading of the position counter is correct even after a reversing operation. | 2010-11-11 |
20100283418 | WIDE DYNAMIC RANGE MOTOR CONTROL SYSTEM AND METHOD - Methods and systems are provided for controlling a discretely commutated, multi-phase DC electric motor or actuator is used. The methods and systems may be used for motor or actuator applications where accurate, high resolution torques may be need over a relatively wide range. The methods and systems provide alternative means of selecting the magnitudes of currents to be driven into the motor windings. | 2010-11-11 |
20100283419 | METHOD FOR OPERATION OF A TWO-PHASE ELECTRONICALLY COMMUTATED MOTOR AND MOTOR FOR CARRYING OUT SAID METHOD - A two-stranded electronically commutated DC motor has a permanent-magnet rotor ( | 2010-11-11 |
20100283420 | FAN ARRANGEMENT IN WHICH THE CONSUMED ELECTRIC POWER IS INFLUENCED - A fan arrangement ( | 2010-11-11 |
20100283421 | ACTUATOR - Linear actuator ( | 2010-11-11 |
20100283422 | CURRENT SENSING IN A DISK-DRIVE SPINDLE MOTOR - One embodiment of the invention includes a disk-drive spindle motor power regulator system. The system includes a switching system comprising at least one power transistor for each of a plurality of phases of a disk-drive spindle motor. The system also includes a switching controller configured to generate a plurality of switching signals configured to control the at least one power transistor for each of the plurality of phases of the disk-drive spindle motor. The system further includes a current monitor configured to measure a magnitude of an individual phase current through at least one of the plurality of phases of the disk-drive spindle motor. | 2010-11-11 |
20100283423 | ELECTRIC MOTOR CONTROL ALGORITHM WITH BYPASS RELAY - Aspects of the present invention pertain to a method of power control for an electrical motor using a control bypass feature that allows for the delivery of full supply voltage to a motor when it is operating at or above a certain load threshold level. Advantages of the present invention include the ability to provide power savings at low loads while still a motor to operate at full rated capacity under high load conditions. Also, a load sensor and an override unit that are independent of the phase lag compensation portion of power control allows for faster response to rapid load changes. | 2010-11-11 |
20100283424 | TENT ELECTRICAL SYSTEM - An electrical system ( | 2010-11-11 |
20100283425 | POWER STORAGE DEVICE AND SEMICONDUCTOR DEVICE PROVIDED WITH THE POWER STORAGE DEVICE - An object is to provide a power storage device provided with a battery that is a power storage means, for safe and accurate supply of electric power in a short period of time for drive power supply voltage without checking remaining capacity of the battery or changing batteries with deterioration over time of the battery for drive power supply voltage. The power storage device is provided with a battery that is a power storage means as a power supply for supplying electric power and a counter circuit for counting charging time of the power storage means. An electromagnetic wave with electric field intensity, magnetic field intensity, and power flux density per unit time which are transmitted from a power feeder are controlled, and the power storage means is efficiently charged using the electromagnetic wave in a short period of time. | 2010-11-11 |
20100283426 | Method and apparatus for charging an electric vehicle from a streetlight - Streetlights along streets and in parking lots are often suitably located for a vehicle to park in immediate proximity. An electric vehicle charging system and method allows the power supply previously dedicated to the streetlight to be used for electric vehicle recharging whenever the streetlight is not lit. In some embodiments, if the total of the current drawn by the electric vehicle charging and the lit streetlight is less than the rating of the streetlight power supply, then charging may continue even while the streetlight is lit. Further, if an electric vehicle so charging offers a utility-interactive inverter, then upon demand the electric vehicle may be available to supply power back to the electric grid. | 2010-11-11 |
20100283427 | POWER SUPPLY SYSTEM - A power supply system has at least one forced discharge section, which includes at least one aqueous solution secondary battery and at least one nonaqueous solution secondary battery having a smaller unit battery capacity as compared with the aqueous solution secondary battery and makes each nonaqueous secondary battery forcibly discharge electricity. The power supply system also has a control section, which measures the voltage of the nonaqueous solution secondary battery individually and makes each nonaqueous solution secondary battery forcibly discharge electricity by using the forced discharge section until the forced discharge end voltage is reached when the voltage of the nonaqueous solution secondary battery reaches a forced discharge start voltage Va. | 2010-11-11 |
20100283428 | RECHARGEABLE BATTERY ASSEMBLY AND POWER SYSTEM USING SAME - A rechargeable battery, battery set or battery pack having a circuit or a plurality of circuits for providing self-discharging thereof electrically connected in parallel are used to form rechargeable battery assemblies and electric power supply systems for use in electric and hybrid vehicles and the like. | 2010-11-11 |
20100283429 | NON-AQUEOUS ELECTROLYTES AND ELECTROCHEMICAL DEVICES INCLUDING THE SAME - An electrochemical cell includes a cathode capable of reversibly releasing and receiving an alkali metal; an anode capable of reversibly releasing and receiving the alkali metal; and a non-aqueous electrolyte including one or more dissolved lithium salts, one or more nitriles, sulfur dioxide, and one or more other polar aprotic solvents. In some embodiments, the non-aqueous electrolyte is substantially free of one or more other polar aprotic solvents | 2010-11-11 |
20100283430 | SYSTEM AND METHOD FOR CHARGING AND DISCHARGING A Li-ION BATTERY PACK - An electrochemical battery system in one embodiment includes a plurality of first electrochemical cells, a memory in which command instructions are stored, and a processor configured to execute the command instructions to (i) evaluate each of the plurality of first electrochemical cells, and (ii) selectively connect a first of the plurality of first electrochemical cells to a power provider based upon the evaluation while selectively isolating a second of the plurality of first electrochemical cells from the power provider based upon the evaluation. | 2010-11-11 |
20100283431 | INFORMATION PROCESSING APPARATUS AND METHOD FOR CONTROLLING BATTERY CHARGE - An information processing apparatus according to an embodiment includes: a heat generating body; a temperature sensor configured to detect a temperature of the heat generating body; a battery in the information processing apparatus; an adaptor configured to supply power from an external power source to the battery to charge the battery; and a controller configured to control a charging operation for charging the battery to be performed in one of a rapid charging or a normal charging based on the temperature detected by the temperature sensor and a threshold temperature lower than a rated temperature of the heat generating body while a power of the information processing apparatus is turned off. | 2010-11-11 |
20100283432 | Vehicle Timing Apparatus - The present invention relates to a timing apparatus and methods of its use in quantifying the time parameter of being away from a vehicle. The timing apparatus having a menu included with a set of numbers corresponding to user selectable time parameters, a control knob adjustable to designate a selected time parameter from the set of numbers, the selected time parameter representing the time until the vehicle will be turned back on, and a sensor connected to the control knob and a microprocessor, the sensor providing a proximate selected position of the control knob in reference to the set of numbers, the selected position representing the selected time parameter. | 2010-11-11 |
20100283433 | CHARGE EQUALIZATION APPARATUS WITH PARALLEL CONNECTION OF PRIMARY WINDINGS OF MULTIPLE TRANSFORMERS - The present invention relates, in general, to a charge equalization apparatus for batteries and, more particularly, to a charge equalization apparatus, in which the primary windings (M | 2010-11-11 |
20100283434 | ELECTRICITY ACCUMULATING DEVICE - An electricity accumulating device includes capacitors connected in series, balanced voltage adjusting portions connected to the capacitors respectively, and a control circuit connected to the balanced voltage adjusting portions. The control circuit performs the following operations: measuring two voltages at different times from each other across each capacitor during the non-charge-or-discharge period of the capacitors by using the balanced voltage adjusting portions; calculating the absolute value of the difference between the two voltages; determining the balanced voltage of each of the capacitors according to the absolute value; and controlling the balanced voltage adjusting portions to make the voltage across each capacitor a balanced voltage. | 2010-11-11 |
20100283435 | Distributed Capacitor Bank Controllers and Methods Thereof - A distributed capacitor bank controller for power factor correction of a power system may include a first distributed meter, a second distributed meter, a programmable logic controller and a communications pathway. The first and second meters may be operable to provide a power factor value, a current value, a voltage value, and a load value. The first and second meters may be coupled to the programmable logic controller via the communications pathway. The programmable logic controller may be operable to receive the power factor value, the current value, the voltage value and the load value from the first and second distributed meters, determine an average power factor value and a current unbalance value, and automatically add or remove a capacitor step of a capacitor bank to the power system based at least in part on the average power factor value, the current unbalance value, the voltage value and the load value. | 2010-11-11 |
20100283436 | METHOD AND APPARATUS FOR SUPPRESSING NOISE CAUSED BY PARASITIC CAPACITANCE AND/OR RESISTANCE IN AN ELECTRONIC CIRCUIT OR SYSTEM - Reducing, suppressing or canceling parallel parasitic capacitance and/or resistive effects that affect the frequency response of components, elements and/or circuits in an electronic circuit or system that exhibit inductance is disclosed. Noise generated by parallel parasitic capacitance and/or parasitic resistance of the components, the physical orientation of the components, and/or the layout of components, devices and/or conductive tracks (board traces) on printed circuit boards within an electronic circuit or system is reduced, suppressed or canceled. The reduction, suppression or cancelation is achieved by adding a current source in parallel with a part or component of the electronic circuit or system that exhibits inductance, the current source being adapted to deliver a compensating current of roughly equal magnitude and roughly opposite phase to parasitic current associated with the part or component. | 2010-11-11 |
20100283437 | METHOD AND APPARATUS FOR SUPPRESSING NOISE CAUSED BY PARASITIC INDUCTANCE AND/OR RESISTANCE IN AN ELECTRONIC CIRCUIT OR SYSTEM - Reducing, suppressing or canceling series parasitic inductance and/or resistive effects that affect the frequency response of components, elements and/or circuits in an electronic circuit or system that exhibit capacitance is disclosed. Noise generated by series parasitic inductance and/or parasitic resistance of the components, the physical orientation of the components, and/or the layout of components, devices and/or conductive tracks (board traces) on printed circuit boards within an electronic circuit or system is reduced, suppressed or canceled. The reduction, suppression or cancellation is achieved by adding a voltage source in series with a part or component of the electronic circuit or system that exhibits capacitance, the current source being adapted to deliver a compensating voltage of roughly equal magnitude and roughly opposite phase to parasitic voltage associated with the part or component. | 2010-11-11 |
20100283438 | OUTPUT COMPENSATOR FOR A REGULATOR - An output compensator for a regulator is provided that can improve the dynamic response of a regulator, and which does not require the redesigning of the power conversion stage or control stage of the regulator, but simple circuit connection of the compensator circuit to the output stage of the regulator. The compensator senses an output signal at a passive component at an output of the regulator; generates a compensating signal based on a difference signal, the difference being a difference between a level of a reference signal for the regulator and the sensed output signal; and applies the compensating signal to the passive output component to reduce the difference between the level of the reference signal and the sensed output signal. The passive output component may be, for example, a capacitor or an inductor, depending on the operation of the regulator. | 2010-11-11 |
20100283439 | EFFICIENT SWITCH CASCODE ARCHITECTURE FOR SWITCHING DEVICES - Efficient switch cascode architecture for switching devices, such as switching regulators. The cascode architecture includes a switching stage responsive to an external driver signal for switching transitions, and a bias generator operative to bias the cascode transistor of the switching stage to protect the switching stage from damage during the switching transitions. | 2010-11-11 |
20100283440 | POWER SUPPLY DEVICE, CONTROL CIRCUIT AND METHOD FOR CONTROLLING POWER SUPPLY DEVICE - A power supply device including a converter having a switch circuit to which an input voltage is supplied and a coil coupled between the switch circuit and an output end from which an output voltage is output; and a control circuit comparing between a feedback voltage and a reference voltage, and on/off controls the switch circuit according to a comparison result; wherein, the control circuit includes a current gradient detection circuit performs detection of a gradient of a coil current flows thorough the coil during an off period of the switch circuit and generates a slope voltage according to a result of the detection; and an adder circuit performs one of generating the feedback voltage by adding the slope voltage to a voltage according to the output voltage and generating the reference voltage by adding the slope voltage to a standard voltage that is set according to the output voltage. | 2010-11-11 |
20100283441 | PWM CONTROLLER AND CONTROL METHOD FOR A DC-DC VOLTAGE CONVERTER - A PWM controller and control method for a DC-DC voltage converter filter the high-frequency component of the voltage at the phase node between high-side and low-side elements of the voltage converter to generate a signal synchronous and in phase or out-of-phase with the inductor current of the voltage converter, to achieve a low-ripple output voltage and stable loop control. | 2010-11-11 |
20100283442 | DC-DC CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT FOR CONTROLLING POWER SOURCE - A control technology which eliminates the need for changing the switching frequency even under light load where the on-time of a drive switching element becomes shorter than a minimum on-time dependent on the characteristics of the circuit in a synchronous rectification switching regulator. The synchronous rectification switching regulator includes a drive switching element for storing energy in a coil by applying a DC input voltage from a DC power supply to an inductor and permitting a current to flow, and a rectification switching element for rectifying the current of the inductor during an energy discharge period where the drive switching element is turned off. The timing for turning off the rectification switching element under light load is delayed so as to store energy in the inductor from the output, and the on-time is controlled to become longer as the load becomes lighter by the output from an error amplifier. | 2010-11-11 |
20100283443 | Circuit Arrangement for Supplying An Output Current to a Load - A circuit arrangement for supplying an output current to a load which is useable in power supplies and is connectable in parallel to other circuit arrangements, wherein effects of component tolerances on a uniform working load are avoided. | 2010-11-11 |
20100283444 | REGULATED VOLTAGE SYSTEM AND METHOD OF PROTECTION THEREFOR - A system comprises a voltage regulator operably coupled to an external component, a voltage regulator reset circuit and at least one functional element supplied with a voltage by the voltage regulator. The voltage regulator reset circuit is arranged to repetitively reset the voltage regulator upon disconnection of the external component. | 2010-11-11 |
20100283445 | INTEGRATED CIRCUIT HAVING LOW POWER MODE VOLTAGE REGULATOR - A voltage regulator includes a node, circuitry, a regulating transistor, a disabling transistor, and a voltage follower stage. The circuitry is coupled to the node for providing a current to the node. The regulating transistor is coupled between the node and a first power supply voltage terminal. The disabling transistor is coupled in parallel with the regulating transistor for selectively disabling the regulating transistor by directly connecting the first power supply voltage terminal to the node. The voltage follower stage is coupled between the first power supply voltage terminal and a second power supply voltage terminal. The voltage follower stage has an output connected to a control electrode of the regulating transistor, and an input connected to the node. | 2010-11-11 |
20100283446 | DEVICE AND METHOD FOR CONTROLLING DC BIAS OF RF DISCHARGE SYSTEM - The present invention provides a device and a method for controlling a DC bias of a RF discharge system. Said device comprises a DC bias detection module ( | 2010-11-11 |
20100283447 | MULTILAYER INDUCTOR AND POWER CONVERTER COMPRISING IT - A multilayer inductor comprising a coil embedded in a magnetic portion, and a magnetic gap formed by a non-magnetic portion in part of a magnetic path, the magnetic portion being made of Ni ferrite, whose relative temperature coefficient αμ | 2010-11-11 |
20100283448 | REFERENCE CIRCUIT WITH REDUCED CURRENT STARTUP - An apparatus is provided. The apparatus comprises a reference circuit and a startup circuit. The reference circuit is adapted to provide a startup current, while the startup circuit receives the startup current and outputs an output voltage. The startup circuit includes a current mirror, a first NMOS transistor, a second NMOS transistor, diodes, and a third NMOS transistor, and a control circuit. The first and second NMOS transistors are coupled to the current mirror at their sources and are coupled to one another and to the reference circuit at their gates. The diodes are coupled between the gate of the second NMOS transistor and the source of the second NMOS transistor, and the third NMOS transistor is coupled to the source of the second NMOS transistor at its gate (which also provides the output voltage at its source). The control circuit is then coupled to the drains of the first and second NMOS transistors. | 2010-11-11 |
20100283449 | COMMUNICATION OUTLET IDENTIFICATION SYSTEM USING ETHERNET SIGNALS - An AC common mode backchannel signaling system is used to provide outlet ID information in a communication network. Wire pairs of a communication network are used to support the AC common mode backchannel signaling system, while also supporting Ethernet communications as well as Power Over Ethernet (PoE). Query and receiving AC circuitry is provided in an intelligent patch panel, and outlet ID receiving and response AC circuitry is provided in communication outlets. These two sets of AC circuitry use the AC common mode backchannel signaling system to communicate with one another, without disrupting PoE or Ethernet signaling on the wire pairs of the network. | 2010-11-11 |
20100283450 | Particle detection - Particle detection and characterising apparatus has an insulating tube ( | 2010-11-11 |
20100283451 | Optically measuring electric field intensities - An apparatus includes an optical resonator and a passive optical device. The optical resonator has first and second optical reflectors and an optical cavity interposed between the reflectors. The optical resonator includes an electro-optically responsive material. One of the reflectors is a distributed Bragg reflector. A passive optical device is configured to direct light through the first optical reflector. The optical resonator is configured to return a portion of the light through the first reflector. | 2010-11-11 |
20100283452 | Apparatus and Method for Measuring Real Time Clock Accuracy in an Electric Meter - An arrangement for measuring an internal clock within an electricity meter includes an optical communication circuit within the meter, an optical detector external to the meter, and a frequency counter. The optical communication circuit within the electricity meter is operably coupled to receive a pulse output of the meter's internal clock, and is further configured to generate a corresponding optical pulse representative of the pulse output. The optical detector is configured to detect the pulse output via an optical port of the electricity meter. The frequency counter is operably coupled to receive from the optical detector a signal that is representative of the detected pulse output. | 2010-11-11 |
20100283453 | Methods for Calibrating an Electric Meter - An energy measurement by an electric meter is determined by a method, comprising the steps of: determining a normalization constant (K) representative of a unit of measured energy for each pulse generated by said electric meter; receiving a pulse by said electric meter; and generating an energy measurement by applying said normalization constant to said received pulse. | 2010-11-11 |
20100283454 | MAGNETISING ASSEMBLY - A magnetiser for a pipeline inspection tool. The magnetiser comprises a ferromagnetic base member, a pair of driving magnets mounted at spatially separate locations on the base member and a flux enhancing magnet mounted on the base member adjacent to one or both of the driving magnets. The directions of magnetisation of the pair of driving magnets extend in opposite senses to each other, towards and away from the base member respectively to create a magnetic circuit that includes a flux path between the driving magnets which passes through the base member. The flux enhancing magnet has a direction of magnetisation substantially aligned with the direction of magnetic flux on the flux path, the flux enhancing magnet being magnetically coupled to the adjacent driving magnets to drive flux around the magnetic circuit and thereby enhance the magnitude of a magnetic field exhibited by the magnetic circuit outside the magnetiser. | 2010-11-11 |
20100283455 | FREQUENCY SELECTION METHOD AND HARDENING DEPTH MEASUREMENT METHOD OF EDDY CURRENT MEASUREMENT - Disclosed is a method of appropriately and easily selecting a combination of two different frequencies of an AC exciting signal used for eddy current measurement while decreasing or removing the dependence of the measurement accuracy on temperature. Three or more AC exciting signals of different frequencies are applied to an object under measurement by an exciting coil, and an induced current is produced. Detection signals corresponding to the frequencies are detected by a detection coil, and the phase difference between each detection signal and the AC exciting signal corresponding to each frequency is calculated from the detection signals corresponding to the frequencies. From the phase differences, a combination of two frequencies the phase differences of which are within a predetermined range is extracted. The lower frequency of the extracted combination is used for a first frequency, and the higher one is used as a second frequency. Thus, the combination of two frequencies are selected. | 2010-11-11 |
20100283456 | MAGNETIC DETECTION OF BACK-SIDE LAYER - The invention relates to an integrated circuit comprising a substrate having a first side and a second opposing side. An electronic circuit (EC) is provided at the first side (S | 2010-11-11 |
20100283457 | MAGNETIC SENSOR AND METHOD FOR PRODUCING THE SAME - A magnetoresistive element includes, in plan view, an element section and an extension region extending from an end portion of the element section; and an insulation layer is formed on the element section and the extension region. A contact hole having a recessed shape, penetrating through the insulation layer, and extending at least to the extension region is formed; an electrode pad is formed in the contact hole; a surface of the electrode pad is exposed to outside; and the electrode pad is electrically connected to the extension region. The element section and the extension region are integrally formed so as to have an identical layer configuration employing a magnetoresistive effect in which electrical resistance varies in response to external magnetic fields. | 2010-11-11 |
20100283458 | MATCHING OF GMR SENSORS IN A BRIDGE - A magnetoresistive (MR) sensing device includes MR elements electrically connected to form a bridge circuit and one or more non-functional (or “dummy”) MR elements for improved matching of the bridge circuit MR elements. | 2010-11-11 |
20100283459 | Method and Apparatus for NMR Measurements in Underbalanced Drilling - NMR spin echo signals are measured in a borehole during underbalanced drilling. A magnetic field gradient in the region of examination is selected to suppress an effect of a formation fluid flow on the produced signals, the fluid flow being caused by the excess of the formation pressure over the borehole fluid pressure. | 2010-11-11 |
20100283460 | Method and Apparatus for NMR Measurements in Small Boreholes - NMR spin echo signals are measured in a small borehole during drilling. Signals measured in a plurality of regions of investigation are combined to increase the signal strength. | 2010-11-11 |
20100283461 | Method and Apparatus for NMR Measurements While Drilling with Multiple Depths of Investigation - NMR spin echo signals are measured in a borehole during drilling. Signals measured in a plurality of regions of investigation with different depths of investigation in the borehole are processed to give a radial profile of formation properties, including a potential gas kick. | 2010-11-11 |
20100283462 | TUBULAR MAGNETIC RESONANCE SURFACE COIL, AND METHOD AND SYSTEM FOR PROCESSING SIGNALS THEREFROM - In a method and system for processing radio frequency signals of a tubular surface coil, the N channels of coil output signals are generated based on M channels of radio frequency signals acquired by M coil units in the tubular surface coil, wherein N is an even number greater than 1 and is less than or equal to M, and the N channels of coil output signals can be divided into N/2 pairs, with the two channels of coil output signals in each of the pairs respectively coming from the coil units located at symmetrical positions of the tubular surface coil. The respective modulus values of the two channels of coil output signals in said each pair of coil output signals are multiplied to obtain N/2 products which are then summed, and the square root of the summed result is computed, so as to generate a lateral cross-sectional image according to the computed result of square root. The signal strength in an imaging area and the uniformity of signal to noise ratio are thereby improved. | 2010-11-11 |
20100283463 | METHOD AND APPARATUS FOR FIELD MAP ESTIMATION - A method for estimating values of a field map to generate a magnetic resonance display image with species separation is provided. A set of MR images is acquired based on an applied magnetic resonance excitation. A set of feasible field map values for each pixel in a field map are determined from the set of MR images. Estimated values of the field map for each pixel are chosen from the set of feasible field map values using a combinatorial optimization algorithm that includes a smoothness constraint. The combinatorial optimization algorithm includes iteratively communicating, between neighboring pixels in the field map, sum-product belief messages that include likelihoods for feasible field map values. Field map values are fixed to most likely field map values if the pixel satisfies the smoothness constraint with its neighboring pixels. A magnetic resonance display image with species separation is generated using the estimated field map. | 2010-11-11 |
20100283464 | MAGNETIC RESONANCE IMAGING USING NAVIGATOR ECHO METHOD WITH NAVIGATOR REGION IN OVERLAP WITH IMAGED REGION - An object of this invention is to provide a Navigator Echo method applicable even when an elongated navigator region and a region of interest to be imaged have a mutually overlapping part. A control section of an MRI apparatus decides, based on a measured signal obtained from a first reception pulse emanated in response to a first transmission pulse which excites a first region to monitor the breathing movement of a subject, whether or not a second region of the subject to be imaged and the first region have a mutually overlapping part, corrects, when the decision result shows that there is an overlapping part, the measured signal obtained from the first reception pulse, and controls a reconstruction unit so as to reconstruct the image of the second region based on the measured signal obtained from a second reception pulse emanated in response to a second transmission pulse which excites the second region and the corrected measured signal. | 2010-11-11 |
20100283465 | SYSTEM AND METHOD FOR TISSUE SPECIFIC MR IMAGING OF METABOLITES USING SPECTRAL-SPATIALLY FORMED STIMULATED ECHO - A system for magnetic resonance (MR) spectroscopy includes a plurality of gradient coils positioned about a bore of a magnet and an RF coil assembly coupled to a pulse generator to emit RF pulse sequences and arranged to receive resulting MR signals from a subject of interest. A system control is also included in the MR spectroscopy system and is coupled to the plurality of gradient coils and the RF coil assembly. The system control is programmed to cause the RF coil assembly to emit a first RF pulse and a second RF pulse, wherein at least one of the first and second RF pulses is spectrally selective and at least one of the first and second RF pulses is spatially selective. The system control is also programmed to cause the RF coil assembly to emit a third RF pulse after a pre-defined time delay to generate a stimulated echo and detect MR signals resulting from the stimulated echo. | 2010-11-11 |
20100283466 | LOCAL GRADIENT SYSTEM FOR IMAGING OF THE BREAST WITH PLANAR ARRANGEMENT - A coil arrangement for a magnetic resonance tomography apparatus has plates that each contain at least one gradient coil. | 2010-11-11 |
20100283467 | METAL DETECTOR WITH IMPROVED MAGNETIC RESPONSE APPLICATION - This invention discloses a low cost metal detector which suppresses signals arising from signals induced in a receive inductor from a rate of change of environmental static fields. The metal detector processes a signal due to a rate of change of environmental static fields to produce a first signal, and processes a signal due to the transmitted magnetic field to produce a second signal, the second signal includes a proportion of the first signal. Signal processing includes the subtraction of an estimation of the proportion of the first signal from the second signal to produce a third signal, such that the third signal is substantially independent of the first signal; and the receive electronics further processes the third signal to produce an indicator output signal, the indicator output signal includes a signal indicative of the presence of a metallic target and is substantially unaffected by the signal due to a rate of change of environmental static fields. | 2010-11-11 |
20100283468 | Remotely located tuning circuits for multi-frequency, multi-puropse induction antennae in downhole tools - A unified circuit without using a relay is proposed to resonate an antenna at more than two frequencies. The use of such analog IC switches are common place for transceiver applications in high RF frequencies (500 MHz and above). However, the use of selectively tuned antennas has for the most part been accomplished by the use of latching relays or fixed value components. The IC switch allows for not only the functionality of a single antenna to be either a transmitter and/or a receiver, but also allows, by adding additional switches to select any number of frequencies to resonate the antenna. This frequency resonation could be at fixed frequency points or sweep in either linear or logarithmic steps. The component selection of capacitors for either method would be controlled by a DSP or other microcontroller device. In one embodiment, an antenna for a downhole measurement tool is provided with a tuning circuit couple by a transformer to at least one antenna. The tuning circuit is disposed entirely within and protected by the hollow body of the tool and selectively tunes the antenna to at least three discrete frequencies. Advantageously, no structural modification is made on the outer surface of the tool to accommodate the tuning circuit. In one embodiment, a switching circuit enables a single antenna to function as both a transmitter and a receiver. | 2010-11-11 |
20100283469 | METHODS FOR MAKING DIRECTIONAL RESISTIVITY MEASUREMENTS - One exemplary embodiment of a method for making directional resistivity measurements includes transmitting an axial electromagnetic wave in a borehole and receiving substantially pure axial and transverse components of the wave. A ratio of the axial and transverse components is computed and may be utilized as an indicator of various formation parameters. The invention advantageously enables the moment of the transmitting antenna to be canceled and therefore can result in improved accuracy. | 2010-11-11 |
20100283470 | COMPENSATED DIRECTIONAL RESISTIVITY MEASUREMENTS - A method for making directional resistivity measurements includes sequentially transmitting first and second axial and transverse electromagnetic waves in a borehole and receiving substantially pure axial and transverse components of each of the transmitted waves. A composite ratio of the received components is computed and may be utilized as an indicator of various formation parameters. The invention advantageously provides for the acquisition of compensated directional resistivity measurements. | 2010-11-11 |
20100283471 | Method for Measuring SOC of a Battery Management System and the Apparatus Thereof - This invention is related to a method and an apparatus for choosing SOCi (State Of Charge based on current) or SOCv (State Of Charge based on voltage) as the SOC (State Of Charge) of a battery depending on a condition in a battery management system by using an equivalent circuit model. In this invention, a method for measuring SOC of a battery in a battery management system is characterized by comprising the steps of: obtaining voltage data and temperature by measuring the current, voltage and temperature of a battery; calculating SOCi by accumulating the current data; calculating open circuit voltage by using an equivalent circuit model which simply presents the current data, the voltage data and the battery through an electric circuit; calculating SOCv by using the temperature data and the open circuit voltage; and choosing at least one of the SOCi and the SOCv as SOC of the battery by using the SOCi and the SOCv based on the judgment on the current state of a vehicle for a certain time interval. | 2010-11-11 |
20100283472 | VERFAHREN ZUR UBERWACHUNG DER RESTSTANDZEIT EINER BATTERIE - A method for monitoring the remaining service life of a battery used for operating a field device in automation technology. The present power consumption of the battery is ascertained. Then, during a first phase of life, power consumption of the battery ascertained during operation of the field device is compared with a predetermined threshold value. In the case of exceeding the predetermined threshold value, during a second phase of life, the battery is exposed to defined load spikes at predetermined time intervals. Voltage collapses corresponding to the defined load spikes are detected, and a warning report is generated when the voltage collapses reach a predetermined maximum limit value. | 2010-11-11 |
20100283473 | MONITORING SYSTEM AND METHOD - A method and system for monitoring a voltage of a battery cell or a battery stack. A first monitoring unit has a first plurality of battery monitoring nodes, first and second data ports, a first supply port switchably coupled to the first plurality of battery monitoring nodes, a second supply port switchably coupled to the first plurality of battery monitoring nodes, and a third supply port. A controller is connected to the first monitoring unit. Alternatively, a reference voltage may be connected to the controller or it may be connected to the first monitoring unit. | 2010-11-11 |
20100283474 | TEST CIRCUIT AND OPTICAL PICKUP DEVICE - A test circuit for testing not only characteristics of a current-voltage conversion circuit in which a light-receiving element is used but also characteristics of the light-receiving element includes: a current-mirror circuit | 2010-11-11 |
20100283475 | SEPARATE TEST ELECTRONICS AND BLOWER MODULES IN AN APPARATUS FOR TESTING AN INTEGRATED CIRCUIT - The invention relates to an apparatus for testing an integrated circuit of an electronic device. | 2010-11-11 |
20100283476 | Testing System and Testing Method - The invention discloses a testing system and a testing method, suitable for testing a DUT with double-sided signal pins. The testing system includes a testing platform and a pick-and-place device. The testing platform includes an electromagnetic shielding chamber and a test-bench module. The electromagnetic shielding chamber has an opening. The test-bench module is disposed in-between the electromagnetic shielding chamber. The pick-and-place device is movably disposed above the testing platform. The pick-and-place device includes an electromagnetic shielding cap and a signal transmission structure. When the pick-and-place device places the DUT on the test-bench module, the electromagnetic shielding cap cooperates with the electromagnetic shielding chamber of the testing platform to form an isolated space for isolating the DUT, and furthermore, the signal pin disposed on an upper surface of the DUT can be electrically connected to the test-bench module through the signal transmission structure. | 2010-11-11 |
20100283477 | ASSEMBLY FOR DETECTING ELECTRIC DISCONTINUITY BETWEEN AN ELECTRIC CONTACT AND AN ELECTRICALLY CONDUCTING MEMBER MOUNTED IN THE DETECTION CIRCUIT - An assembly ( | 2010-11-11 |
20100283478 | CONNECTOR CONDUCTION CHECK APPARATUS - The object of the present invention is to provide a connector conduction check apparatus manufactured easily and inexpensively. The connector conduction check apparatus of the present invention | 2010-11-11 |
20100283479 | METHOD OF DETECTING FAULTS ON AN ELECTRICAL POWER LINE - This invention relates to a method of detecting faults on an electrical power line ( | 2010-11-11 |
20100283480 | TEST APPARATUS, TEST METHOD, AND DEVICE - Provided is a test apparatus that tests a device under test, wherein the device under test includes an internal circuit that generates a plurality of internal clocks having different phases based on a reference clock provided thereto, selects from among the internal clocks an internal clock having a predetermined relative phase with respect to an input signal having a frequency substantially equal to that of the internal clocks, and samples the input signal according to the selected internal clock. The test apparatus comprises a selection control section that fixes the internal clock selected by the internal circuit; a phase control section that, with the selection of the internal clock being fixed by the selection control section, sequentially shifts the phase of the internal clock by inputting the reference clock to the device under test while sequentially shifting the phase of the reference clock outside of the device under test; and a measuring section that measures a characteristic of at least one of the input signal and the internal circuit, based on the sampling result of the internal circuit. | 2010-11-11 |
20100283481 | SYSTEMS AND METHODS FOR CONDUCTING EMI SUSCEPTIBILITY TESTING - System and methods for performing EMI susceptibility testing of a device is disclosed. A system may include an EMI generation unit that includes a plurality of EMI generating devices, where each EMI generating device generates EMI having substantially similar characteristics relative to EMI generated by other EMI generating devices in the system. Each EMI generating device is controlled by a controller that is configured to emulate at least partly a live cellular network. | 2010-11-11 |
20100283482 | NON-DESTRUCTIVE SIGNAL PROPAGATION SYSTEM AND METHOD TO DETERMINE SUBSTRATE INTEGRITY - In various exemplary embodiments described herein, a system and associated method relate to non-destructive signal propagation to detect one or more defects in a substrate. The system can be built into a semiconductor process tool such as a substrate handling mechanism. The system comprises a transducer configured to convert one or more frequencies from an electrical signal into at least one mechanical pulse. The mechanical pulse is coupled to the substrate through the substrate handling mechanism. A plurality of sensors is positioned distal to the transducer and configured to be coupled, acoustically or mechanically, to the substrate. The plurality of distal sensors is further configured to detect both the mechanical pulse and any distortions to the pulse. A signal analyzer is coupled to the plurality of distal sensors to compare the detected pulse and any distortions to the pulse with a baseline response. | 2010-11-11 |
20100283483 | High-Resolution, Nondestructive Imaging of Dielectric Materials - The enhanced detection of defects and features in bulk dielectric materials is disclosed. Microwave radiation partly reflected at interfaces where the dielectric constant changes (e.g., where there are defects or structures). A sinusoidal or quasi-sinusoidal wave results. Localization or imaging of features is enhanced by exploiting the variation in distance resolution in a sinusoidal or quasi-sinusoidal standing wave. At characteristic distances, the wave has a high slope, and the amplitude of the wave varies strongly with small changes in distance. By inspecting at these characteristic distances, the resolution is enhanced. By systematically varying the position of the transducer or specimen, detailed images may be formed of the internal structure of the specimen across a range of depths. Defects and structures may be detected at smaller sizes than has previously been possible. The resolution of the imaging may be substantially smaller than the wavelength of the interrogating radiation. | 2010-11-11 |
20100283484 | Method and Apparatus for Localizing an Object in the Body - Method and apparatus for real-time, 3-D image guidance of invasive surgical diagnostic tools and therapy. In this method, the 3-D distribution of electrical conductivity of the surgical region of interest are derived using images derived from magnetic resonance imaging (MRI) X-Ray Computed Tomography (CT) or other techniques. Current flows and voltages within the region due to applied currents from body surface electrodes at defined locations are simulated using a finite element method. During the surgical procedure, electrodes are placed at the same locations, and the surgical instrument is inserted into the region. By matching the potentials measured by the instrument to the simulated potentials, the instrument location may be identified in real-time. | 2010-11-11 |
20100283485 | METHOD AND DEVICE FOR CAPACITIVE DETECTION OF OBJECTS - Proximity of a person causes a change in a capacitance value of a sensor capacitor having a pair of capacitive plates. The change is detected by charging the sensor capacitor by coupling the sensor to a voltage supply. The voltage supply is disconnected from a tank capacitor during the charging. The charge is transferred from the sensor capacitor to a tank capacitor. The voltage supply is disconnected from the tank capacitor during the charge transfer. The charging and charge transfer are repeated several times. The voltage of the tank capacitor is monitored. At least one value is determined which depends on the rate of change of the voltage of the tank capacitor. The capacitance of the capacitive sensor is typically low, typically in the order of 100 pF to 1 nF. The capacitance of the tank capacitor may be several orders of magnitude higher than the capacitance of the sensor capacitor. The large tank capacitor acts as a part of a low-pass filter which effectively filters out signal noise. | 2010-11-11 |
20100283486 | SYSTEM AND METHOD TO MEASURE DIELECTRIC CONSTANT IN A SUBTERRANEAN WELL - A method and system to predict dielectric behavior in a wide frequency range in a wellbore. The method comprising: deploying a tool in a wellbore, measuring the permittivity and conductivity at more than one frequency of a formation with the tool, and predicting the dielectric behavior of saline water in a wide band frequency range and temperature. | 2010-11-11 |
20100283487 | SYSTEM AND METHOD FOR SENSING VOLTAGE IN MEDIUM-TO-HIGH VOLTAGE APPLICATIONS - A system and method for measuring voltage of a medium to high voltage line conductor is disclosed. The system includes an electrical insulator having a surface and an edge, the surface having an opening therein to allow passage of a line conductor therethrough in a direction generally perpendicular to the surface. The system also includes first and second electrodes positioned about the opening on the surface of the electrical insulator and spaced apart from one another to provide a common capacitive divider signal indicative of a voltage potential of the line conductor. | 2010-11-11 |
20100283488 | SAMPLE MEASUREMENT DEVICE, SAMPLE MEASUREMENT SYSTEM AND SAMPLE MEASUREMENT METHOD - A sample measurement device ( | 2010-11-11 |
20100283489 | Method for Determining the Heating Characteristic of a Glow Plug - A method for determining a heating characteristic of a glow plug, wherein pulse-width-modulated voltage pulses are applied to the glow plug and an electric variable is measured repeatedly during a voltage pulse with the heating characteristic of the glow plug determined by evaluating the difference of successive measurement results of this variable. | 2010-11-11 |
20100283490 | DETERMINING FORMATION PROPERTIES WHILE DRILLING - The present disclosure relates to a method to determine a characteristic of a subsurface formation using a downhole logging tool. A downhole logging tool having the ability to make substantially concurrent disparate measurements on the subsurface formation is provided and substantially concurrent disparate measurements on the formation using the downhole logging tool are made. Those measurements are used to solve a system of equations simultaneously and the solution to the system of equations is used to determine the characteristic of the subsurface formation. | 2010-11-11 |
20100283491 | Double-Clamp Earth Tester Device - A double-clamp earth tester device, having a voltage-inducing transformer (VT) ( | 2010-11-11 |
20100283492 | AUTOMATED ELECTRICAL STABILITY METER - A method for automatically measuring a property of a fluid associated with a drilling application, including obtaining a sample of the fluid, wherein the sample of the fluid is obtained by directing the fluid through an electrode probe assembly comprising an electrode probe and depositing the fluid in a probe gap between electrodes of the electrode probe, ramping up a voltage applied to the electrodes of the electrode probe until a threshold current is obtained, recording the breakdown voltage at the threshold current value, and using the breakdown voltage to compute the property of the sample of the fluid. | 2010-11-11 |