28th week of 2011 patent applcation highlights part 20 |
Patent application number | Title | Published |
20110169433 | SERVOMOTOR SYSTEM WITH INTEGRATED BRAKE CONTROL - A servomotor system is provided. The servomotor system includes an enclosure and a motor stator and rotor disposed in the enclosure. The servomotor system also includes a motor brake disposed in the enclosure and configured to selectively brake the rotor from rotation and a brake control switch disposed in the enclosure and coupled to the motor brake for selectively providing power to the motor brake for selectively engaging and/or disengaging the brake. | 2011-07-14 |
20110169434 | APPARATUS AND METHOD FOR CONTROLLING OPERATION OF INVERTER SYSTEM - An apparatus for controlling operation of inverter system configured to drive a motor by using an inverter, and to normally operate the motor in a resonance-generated frequency band if the resonance occurs, and a method thereof are disclosed, wherein the method includes detecting a current outputted by an inverter system to a motor, if an operation frequency of the motor is in a resonance frequency band, converting the detected current to a d axis current and a q axis current, calculating a difference between the converted d axis current and pre-sampled d axis current (magnetic flux portion), multiplying the calculated difference by a preset comparative control gain to calculate a comparative control voltage, and adding the calculated comparative control voltage to a torque portion voltage responsive to an operation frequency of the motor to generate a driving voltage of the motor. | 2011-07-14 |
20110169435 | EC MOTOR ASSEMBLY - The present invention relates to an EC motor assembly ( | 2011-07-14 |
20110169436 | CONTROL APPARATUS FOR MULTI-PHASE ROTARY MACHINE - A control apparatus controls an inverter (electric power converter circuit) which is connected for selectively applying a plurality of voltage levels to each phase of a polyphase rotary machine. In each of successive control periods, the apparatus determines the inverter operation state (combination of respective voltage levels applied to the phases) to be set for the succeeding control period, by performing prediction calculations based on a model of the rotary machine, for each of a plurality of candidates for the next operation state, to select an optimum candidate. The candidates are restricted to those operation states whereby the voltage level of no more than one of the phases will be changed, at changeover to the operation state of the next control period. | 2011-07-14 |
20110169437 | ONE-PHASE ELECTRONICALLY COMMUTATED MOTOR - An electronically commutated one-phase motor ( | 2011-07-14 |
20110169438 | METHOD AND SYSTEM FOR CONTROLLING AN ELECTRIC MOTOR USING ZERO CURRENT OFFSET VALUE CANCELLATION - Methods and systems for controlling an electric motor are provided. The electric motor includes at least one winding. A winding current flowing through the at least one winding is monitored. The winding current has an oscillating component and an offset component. The offset component of the winding current is isolated from the oscillating component of the winding current. The electric motor is controlled based on the offset component of the winding current. | 2011-07-14 |
20110169439 | MINIMUM TEMPERATURE CONTROL FOR ELECTROMECHANICAL ACTUATOR - A component intended for use in very low temperature situations has an electromechanical actuator with a control for an electric motor. The control receives a temperature signal indicative of a temperature being experienced by the electromechanical actuator. The control is operable to produce a current signal sent to the electric motor which will generate heat without significant torque. A method of operating the electromechanical actuator is also disclosed. | 2011-07-14 |
20110169440 | MACHINE TOOL - A machine tool includes a time calculation unit calculating the time for a spindle to arrive at a target rotational speed, and the time for a spindle head to arrive at a target position; a comparison unit comparing the time to arrive at the target rotational speed and the time to arrive at the target position; and a drive control unit controlling the drive of the spindle and the drive of the spindle head. The drive control unit controls the drive of the spindle head, when a determination is made that the time to arrive at the target rotational speed is longer than the time to arrive at the target position, such that the time for the spindle head to arrive at the target position is longer than the calculated time to arrive at the target position, and less than or equal to the calculated time to arrive at the target rotational speed. Accordingly, the machine tool can drive the spindle head that is a control object in a power-saving mode. | 2011-07-14 |
20110169441 | SYNCHRONOUS CONTROL APPARATUS - A synchronous control apparatus to synchronously control a plurality of motors with respect to a control subject includes a command device and a plurality of motor control devices. The control subject includes the motors, a plurality of position detectors configured to detect a plurality of position information of the motors respectively, and at least one coupler connecting movable axes of the motors. The command device includes a first position controller which is configured to compute a work position based on the position information detected by the position detectors and which is configured to compute, based on a difference between a position command and the work position, a new position command. Each of the motor control devices includes a second position controller configured to compute commands to drive the plurality of motors based on a difference between the new position command and the position information. | 2011-07-14 |
20110169442 | DRIVE APPARATUS FOR STEPPING MOTOR - A drive apparatus for a stepping motor, including: a current detecting portion which detects a current value of phase current flowing through a phase winding; a constant-current-controlling portion which constant-current-controls the phase current flowing through the phase winding based on a detection result of the current detecting portion; a zero crossing detecting portion which detects a zero cross of the phase current based on the detection result of the current detecting portion; a phase difference detecting portion which detects a phase difference between the edge of a drive control pulse signal for the stepping motor and the zero cross detected by the zero crossing detecting portion; and a control device which causes the constant-current-controlling portion to perform constant-current control with a current value according to the phase difference detected by the phase difference detecting portion. | 2011-07-14 |
20110169443 | MOTOR DRIVE LOAD DAMPING - An electric power supply system has a power bus for providing DC power, and a control unit for a source of power to supply the power bus. The power unit includes a damping algorithm to provide damping to power supplied on the power bus. A motor and a motor control include a compensation block for tapping power from the bus, and identifying a portion of a supplied signal due to the damping. The compensation block provides a signal to a summing block that addresses the damping on the power bus prior to the power being supplied to the motor. A method of utilizing such a system is also disclosed. | 2011-07-14 |
20110169444 | ELECTRONIC DEVICE AND CHARGEABLE KEYBOARD - An electronic device includes a keyboard including a component, a light energy collection module disposed on a surface of the component of the keyboard for collecting light energy from an external light source, and a photoelectric module coupled to the light energy collection module for receiving the light energy from the light energy collection module and converting the light energy into electrical energy. | 2011-07-14 |
20110169445 | SOLAR-PANEL APPARATUS FOR A VEHICLE - The positive and negative pole of the DC-battery | 2011-07-14 |
20110169446 | NON-CONTACT CHARGING SYSTEM - In a power transmission terminal, a charging control unit outputs an alternating current signal having a charging control voltage based on a charging control signal. A power transmission unit excites a near-electromagnetic field. A primary-side signal processing unit acquires a reception signal on the basis of a voltage at the power transmission unit at the time of load modulation communication and sets the charging control signal on the basis of reference information included in the reception signal. In a power receiving terminal, a power receiving unit is couplable to the near-electromagnetic field excited by power transmission unit. A charging voltage generating unit generates a charging voltage for a rechargeable battery. A load modulation unit changes the load impedance of the power receiving unit as viewed from the power transmission unit by performing load modulation at the time of load modulation communication. A secondary-side signal processing circuit controls the load modulation unit at the time of load modulation communication using the acquired reference information. | 2011-07-14 |
20110169447 | ELECTRIC VEHICLE SUPPLY EQUIPMENT - An electric vehicle charging system includes a portable housing having an integral holder to hold a connector for an electric vehicle supply circuit. An electric vehicle supply equipment enclosure includes an integral chamber to store all or part of a cord. A mounting bracket for an electric vehicle supply equipment enclosure covers an open portion of the enclosure. A method for facilitating use of an electric vehicle includes providing a prewiring kit for the electric vehicle. An electric vehicle supply equipment enclosure includes an integral disconnect switch. An electric vehicle supply circuit includes a grounding monitor circuit having automatic test functionality. Another electric vehicle supply circuit includes a contact monitor circuit to monitor the state of one or more of the contacts. | 2011-07-14 |
20110169448 | ELECTRICALLY-DRIVEN VEHICLE AND METHOD FOR CONTROLLING CHARGING OF ELECTRICALLY-DRIVEN VEHICLE - In an electrically-driven vehicle comprising a battery which can be charged from an external power supply, a charger, a charger controller which controls the charger, and a battery controller which monitors a battery state, energy loss during the charging is reduced and charging efficiency is improved. A hybrid electric vehicle which is the electrically-driven vehicle includes a charging circuit having a charger which is connected to a high-voltage battery and a charge-time connection switch which is connected between the high-voltage battery and the charger, a charger ECU, and a battery ECU. The battery ECU is activated when a voltage signal is input, and when determining that the state of the high-voltage battery satisfies a chargeable condition, connects the charge-time connection switch, activates the charger ECU and transmits a signal representing the battery state to the charger ECU. | 2011-07-14 |
20110169449 | APPARATUS FOR TRANSFERRING ENERGY USING POWER ELECTRONICS AND MACHINE INDUCTANCE AND METHOD OF MANUFACTURING SAME - A fraction inverter circuit includes a first energy storage device configured to output a DC voltage, a first bi-directional DC-to-AC voltage inverter coupled to the first energy storage device, and a first electromechanical device. The first electromechanical device includes a first plurality of conductors coupled to the first bi-directional DC-to-AC voltage inverter, a second plurality of conductors coupled together, and a plurality of windings coupled between the first plurality of conductors and the second plurality of conductors. The traction converter circuit also includes a charge bus comprising a first conductor coupled to the second plurality of conductors of the first electromechanical device, the charge bus configured to transmit a charging current to or receive a charging current from the first electromechanical device to charge the first energy storage device via the first electromechanical device and the first bi-directional DC-to-AC voltage inverter. | 2011-07-14 |
20110169450 | BATTERY CONTROL APPARATUS - A battery includes an on-board microprocessor-controlled MOSFET-switched cell monitoring and protection system which provides over-charge protection, low-voltage protection, thermal-runaway protection and cell balancing. The output voltage of the battery is fully regulated and user adjustable. Internal switching provides for switching the battery on or off from a control interface on the battery housing or from a remotely located switch. The battery preferably incorporates lithium iron phosphate (LiFePO | 2011-07-14 |
20110169451 | PORTABLE ELECTRONIC DEVICE HOLSTER WITH PIVOTING DOCKING STATION - A holster provides a carrier for removable storing a portable electronic device, such as a cellular phone, PDA or MP3 player, and a fastener for securing the carrier to the user's clothing or bag. The holster can include a fastener for attaching the holster to an article; a carrier attached to the fastener; and a docking station having electrical contacts for interfacing with electrical contacts of the portable electronic device. The docking station can be pivotable relative to the carrier about a pivot axis at an end of the docking station adjacent the electrical contacts. The fastener can be removable. The docking station can include a rechargeable battery electrically connected to the electrical contacts of the docking station for providing electrical charge from the battery to a portable electronic device when connected to the docking station. | 2011-07-14 |
20110169452 | Battery Cell Tab Monitor - A battery cell tab monitoring apparatus includes a conductive element electrically connected between two battery cells. The conductive element is connected to a sensing circuit including a pull-down current source connected to pull current from the conductive element and/or a pull-up current source connected to drive current into the conductive element. A voltage measuring circuit is connected to sense voltages during operation of the pull-down current source and the pull-up current source to be used to determine the status of the conductive element. For instance, voltages beyond certain fixed or variable thresholds indicate that the conductive element is flexing or cracking, which can be a precursor to its breaking. Voltages beyond other fixed or variable thresholds indicate that the conductive element is fully disconnected. The current sources used to push and pull the sensing currents may be used to bring the battery cells into balance when an imbalance is detected. | 2011-07-14 |
20110169453 | CHARGING APPARATUS AND CHARGING METHOD - The present invention aims to reliably prevent overcharge by carrying out charging in just proportion during charging periods. | 2011-07-14 |
20110169454 | CHARGING APPARATUS AND CHARGING METHOD - The present invention aims to suppress waste of charging power during charging and improve charging efficiency. | 2011-07-14 |
20110169455 | MULTIPLE SERIES/MULTIPLE PARALLEL BATTERY PACK - Provided is a multiple series/multiple parallel battery pack which is capable of operating at a proper timing, and which, even if lead wires for voltage measurement extending from secondary batteries are short-circuited, gives no damage to the secondary batteries or lead wires. Thus, the multiple series/multiple parallel battery pack according to the present invention comprises a plurality of units which are connected in series and a control circuit for performing control by means of a charge stop signal and a discharge stop signal output from each of the units. Each of the units is provided with a plurality of secondary batteries | 2011-07-14 |
20110169456 | SWITCH EMBEDDED INTEGRATED CIRCUIT AND METHOD FOR BATTERY PROTECTION - A switch embedded integrated circuit for battery protection includes a MOSFET having a body diode, and a control logic circuit for switching the MOSFET and the direction of the body diode to control the charge current to and the discharge current from a battery. The control logic circuit turns off the MOSFET once any abnormal operation such as over-voltage and under-voltage happens, and turns on the MOSFET according to an OVPR threshold, an OVPR delay time, an UVPR threshold and an UVPR delay time. The OVPR threshold and the OVPR delay time are determined depending on the battery being coupled to a load or a charger, or floating. | 2011-07-14 |
20110169457 | BATTERY PACK - Provided is a battery pack capable of implementing temperature protection with ease. Regardless of whether or not a battery protection IC ( | 2011-07-14 |
20110169458 | BATTERY PACK - Provided is a battery pack capable of reducing the number of terminals of a battery protection IC. When a battery ( | 2011-07-14 |
20110169459 | BATTERY CHARGING METHOD - A battery charging method is provided for extending life of batteries. The method includes providing an appropriate charge-off voltage with respect to variation in both of a remaining capacity and an idle time of the battery. Further, the charge-off voltage may vary according to the remaining capacity and the idle time of the battery, so as to increase charging efficiency of the battery. Additionally, the present invention also provides adjusting a charge-off current to a value according to the variation in an actual capacity of the battery. | 2011-07-14 |
20110169460 | HYBRID VEHICLES - In a battery charging system for a hybrid vehicle, a user-operated switch is provided for triggering an engine to charge battery at an earlier stage for an extended journey as compared to a normal journey. A sensor is provided to detect a charge state level of the battery, the output of the sensor being compared at with a threshold set by switch. | 2011-07-14 |
20110169461 | System, Device and Method for Regulating Volt-Ampere Reactance in a Power Distribution System - A system, method and product for modifying the volt-ampere reactive (VARs) in a power distribution system is provided. In one embodiment, the method includes determining the VARs at a location on the power distribution system and based on the determined VARs, determining whether to modify the VARs. If it is determined to modify the VARs the method includes identifying a plurality a capacitor banks connected to a power line and from the identified plurality of capacitor banks, generating a list of eligible capacitor banks that satisfy inclusion criteria. If the list of eligible capacitor banks includes at least one capacitor bank the method includes selecting a capacitor bank from the list of eligible capacitor banks and transmitting a switching command for the selected capacitor bank. Generating the list of eligible capacitor banks may include one or more of ensuring the voltage at each capacitor bank is not beyond a threshold, ensuring the total harmonic distortion at each capacitor bank is not beyond a threshold, ensuring the capacitor bank has not been switched within a recent predetermined time period, ensuring the capacitor bank has not been switched more than a predetermined number of times within a recent time period, ensuring that communications with each capacitor bank are viable, and other criteria. | 2011-07-14 |
20110169462 | Converter Device and Method for Converting Electrical Power - A converter device for power conversion in e.g. a power plant such as a wind turbine is disclosed. The converter device is configured for converting an input power to an electrical output power. The converter device may be configured for receiving mechanical input power or, according to another embodiment, may be configured for receiving electrical input power. The converter device includes a controller which is configured for setting a phase angle between a voltage and a total current of the electrical output power to a predetermined value if the voltage indicated by the voltage signal is outside a predetermined voltage band. | 2011-07-14 |
20110169463 | ADJUSTABLE DRIVER VOLTAGE SOURCE FOR A SWITCHING POWER SUPPLY AND METHOD FOR ADJUSTING DRIVER VOLTAGE IN A SWITCHING POWER SUPPLY - An adjustable driver voltage source for a switching power supply uses a linear regulator to provide a driver voltage, and a modulator to adjust the driver voltage according to the loading change of the switching power supply. The modulator may lower the driver voltage at light load to reduce the switching loss and thereby increase the power efficiency of the switching power supply. | 2011-07-14 |
20110169464 | DC-DC CONVERTER - A DC-DC converter to convert an input voltage into a predetermined voltage includes a first switching device to provide energy for an inductor; a second switching device to discharge the energy from the inductor to an output terminal; an error amplifier to amplify an error voltage between a first reference voltage and a monitoring voltage obtained by dividing an output voltage output from the output terminal; a set signal generation circuit including a first comparator into which a second reference voltage and an output of the error amplifier are input; a reset signal generation circuit; a control circuit into which an output from the set signal generation circuit and an output from the reset signal generation circuit are input; and a detection circuit to detect a switching frequency of an electric power supply, wherein a characteristic of the first comparator is changed according to the switching frequency. | 2011-07-14 |
20110169465 | VOLTAGE REGULATOR - Provided is a voltage regulator having low current consumption, which is capable of preventing a reverse current from flowing thereto from an output terminal ( | 2011-07-14 |
20110169466 | METHODS AND CONTROL CIRCUITS FOR CONTROLLING BUCK-BOOST CONVERTING CIRCUIT TO GENERATE REGULATED OUTPUT VOLTAGE UNDER REDUCED AVERAGE INDUCTOR CURRENT - A method of controlling a buck-boost converting circuit is provided. The buck-boost converting circuit has an inductive element, a first conduction controlling element, a second conduction controlling element, a third conduction controlling element, and a fourth conduction controlling element. The method includes: controlling the first and third conduction controlling elements to be electrically conductive and the second and fourth conduction controlling elements to be electrically nonconductive according to a first duty setting; determining a second duty setting whose generation is independent of that of the first duty setting; controlling the first and fourth conduction controlling elements to be electrically conductive and the second and third conduction controlling element to be electrically nonconductive according to the second duty setting; and controlling the second and fourth conduction controlling elements to be electrically conductive and the first and third conduction controlling elements to be electrically nonconductive according to a third duty setting. | 2011-07-14 |
20110169467 | TIME SEQUENCE CONTROL CIRCUIT - A time sequence control circuit is provided to control time sequence of a motherboard of a computer. A first voltage received by a power supply receiving terminal is greater than a preset voltage before a signal control terminal on the motherboard receives a second voltage during turning on the computer. During shutting off the computer, the first voltage at the power supply receiving terminal drops and is less than the preset voltage, and the second voltage supplied to the signal control terminal on the motherboard is shut off. | 2011-07-14 |
20110169468 | Power Conversion System and Power Control Method for Reducing Cross Regulation Effect - A power conversion system and power control method for reducing cross regulation effect uses a voltage feedback adjustment circuit to modulate an error signal fed back from an output voltage so as to predict the energy of an output corresponding to its load states. While the energy delivered to an output terminal with its load remaining the same does not change, the energy delivered to an output terminal with its load changing is adjusted accordingly. The power conversion system thus effectively reduces the cross regulation effect and obtains excellent steady system output and transient response. | 2011-07-14 |
20110169469 | VARIABLE CURRENT LIMITER, A POWER SUPPLY AND A POINT OF LOAD CONVERTER EMPLOYING THE LIMITER AND A METHOD OF OPERATING A NON-ISOLATED VOLTAGE CONVERTER - A variable current limiter, a power supply and a method of operating a non-isolated voltage converter are disclosed herein. In one embodiment, the variable current limiter includes: (1) a converter controller configured to regulate an output voltage of a non-isolated voltage converter and limit an output current thereof and (2) a limit provider configured to provide a variable output current limit that inversely varies with the output voltage, the converter controller configured to employ the variable output current limit to limit the output current. | 2011-07-14 |
20110169470 | Power supply control circuit, power supply device, power supply system, and method of controlling power supply control device - A power supply control circuit detects a reference voltage VD corresponding to an intermediate voltage of a Hi Side FET and a Lo Side FET, when a short-circuit fault of the Lo Side FET is generated, and compares a threshold value VIN−VrefH and the reference voltage VD using a comparator COMP. The power supply control circuit determines that the short-circuit fault is generated, when the reference voltage VD is less than the threshold value VIN−VrefH and a switching control signal (HiDr) is in an ON state. Likewise, the power supply control circuit detects the reference voltage VD of the Hi Side FET and the Lo Side FET, when a short-circuit fault of the Hi Side FET is generated, and compares a threshold value VrefL and the reference voltage VD using the comparator COMP. The power supply control circuit determines that the short-circuit fault is generated, when the reference voltage VD is more than the threshold value VrefL and a switching control signal (LoDr) is in an ON state. | 2011-07-14 |
20110169471 | SEMICONDUCTOR DEVICE AND POWER SOURCE DEVICE - A multi-phase power source device capable of easily changing the number of phases is realized. For example, a plurality of drive units POL[ | 2011-07-14 |
20110169472 | DC-DC CONVERTERS HAVING IMPROVED CURRENT SENSING AND RELATED METHODS - A DC-DC converter includes a chip including an error amplifier and a pulse width modulator (PWM) having an input connected to an output of the error amplifier, and an inductor driven by said PWM in series with an output node (V | 2011-07-14 |
20110169473 | MIX MODE WIDE RANGE DIVIDER AND METHOD THEREOF - A mix mode wide range divider is provided for dividing a first signal by a second signal to generate an output signal. A third signal is generated depending on the resistance of a first adjustable resistor, and a fourth signal is generated according to the third signal and a target value determined by the second signal, to adjust the resistance of the first adjustable resistor and the resistance of a second adjustable resistor. The resistance of the first adjustable resistor is so adjusted to make the third signal equal to the target value, and the resistance of the second adjustable resistor is so adjusted to maintain a ratio of the resistance of the second adjustable resistor to the resistance of the first adjustable resistor. The output signal is generated depending on the first signal and the resistance of the second adjustable resistor. | 2011-07-14 |
20110169474 | Step-down switching PFC converter - The step-down switching converter is provided, which promises to replace the conventional buck converter in many applications due to its many advantage, such as higher efficiency, smaller size, fast transient response and lower cost among other benefits. | 2011-07-14 |
20110169475 | SIGNAL OUTPUT CIRCUIT - A MOSFET at an input side controls the operation of a current mirror circuit in accordance with a level change of a PWM signal applied to its gate. When the current mirror circuit operates, a current generated by a current source flows as a mirror current so that a current flows to discharge electricity charged in a capacitance between a gate and a source through a gate of a MOSFET at an output side. When the current mirror circuit stops its operation, a current flowing from the current mirror circuit through the current source is supplied to the gate of the MOSFET at the output side. | 2011-07-14 |
20110169476 | Asymmetrical Coupled Inductors And Associated Methods - An asymmetrical coupled inductor includes a first and a second winding and a core. The core is formed of a magnetic material and magnetically couples together the windings. The core is configured such that a leakage inductance value of the first winding is greater than a leakage inductance value of the second winding. The coupled inductor is included, for example, in a multi-phase DC-to-DC converter. A DC-to-DC converter including a symmetrical coupled inductor includes at least one additional inductor electrically coupled in series with one or more of the coupled inductor's windings. A controller for a DC-to-DC converter including a first phase having an effective inductance value greater than an effective inductance value of a second phase is configured to shut down the second phase while the first phase remains operational during a light load operating condition. | 2011-07-14 |
20110169477 | MULTI-SCANNER DEVICE HAVING A DETACHABLE OUTLET TESTER - A multi-scanner device having a detection unit and an outlet tester that can be selectively connected together for convenient use and easy storage. Preferably, a plug on the outlet tester is inserted into a non-functional socket located on the detection unit to form a multi-scanner device with a detachable outlet tester. | 2011-07-14 |
20110169478 | Laser Optical Path Detection - A method is provided for detecting laser optical paths in integrated circuit (IC) packages. The method provides an IC die encapsulated as a package in a compound of glass spheres and epoxy. Power is supplied to the IC. The IC is scanned with a laser. Typically, a laser wavelength is used that is minimally absorbed by the glass spheres in the epoxy compound of the IC package, and changes in current to the IC are detected. A detected current change is cross-referenced against a scanned IC package surface region. This process identifies an optical pathway underlying the scanned IC package surface region. In some aspects, this process leads to the identification of a glass sphere-collecting package structure underlying the optical pathway. Examples of a glass sphere-collecting structure might include an inner lead wire, lead frame edge, or die edge. | 2011-07-14 |
20110169479 | Method and apparatus for measuring AC voltages - A method and apparatus for measuring an AC voltage. In one embodiment, the apparatus comprises an AC voltage monitor, comprising a solid state electrical isolation device, enabled to (i) generate at least a first voltage measurement of an AC power source, (ii) generate a serial data stream frame based on the at least a first voltage measurement, and (iii) transmit the serial data stream frame via the solid state electrical isolation device. | 2011-07-14 |
20110169480 | LOW VOLTAGE DIFFERENTIAL SIGNALING TEST SYSTEM AND METHOD - In a low voltage differential-mode signaling (LVDS) test system and method, a positive signal waveform and a negative signal waveform of an LVDS signal pair are obtained. A differential-mode high voltage, a differential-mode low voltage, and a common-mode noise are measured according to the positive signal waveform and the negative signal waveform. The measurement results are output to an output device. | 2011-07-14 |
20110169481 | TEST AND MEASUREMENT DEVICE WITH A PISTOL-GRIP HANDLE - In another embodiment, the invention provides a clamp meter configured to receive a removable and rechargeable battery pack. The clamp meter includes a main body having a first axis, a handle, a clamp, a trigger, and a display. The handle has a second axis and includes a first recess configured to receive the battery pack. The first recess includes at least first and second electrical terminals which are exposed when the battery pack is not inserted into the first recess. The second axis forms an oblique angle with the first axis, and the battery pack is inserted into the first recess along the second axis. The clamp is coupled to the main body, aligned with the first axis, and operable to measure an electrical characteristic of a conductor based on an induced current. The trigger is operable to selectively open and close the clamp, and the display configured to display an indication of the electrical characteristic. | 2011-07-14 |
20110169482 | Inductive Position Sensor, Measuring System Equipped Therewith and Method for Operating a Position Sensor - An inductive position sensor includes an electronic circuit, which is configured such that initially three digital signals are able to be generated from the signals detected by three receiver printed conductors. At least two position values are ascertainable by combining the three digital signals, and the position values are able to be supplied to a comparator. A measuring system includes, in addition to the position sensor, a data interface and sequential electronics which include the comparator. | 2011-07-14 |
20110169483 | ROTATION ANGLE DETECTION DEVICE - A rotation angle detection device comprises angle detection means including detection circuits including detection element members consisting of coils and resistances, and inductance changing means for changing inductance of said coils corresponding to rotation of a rotation body to be measured, reference pulse voltage generating means for making said detection circuits generate output signals, and operating means for calculating output signals of said detection circuits, wherein reference pulse voltage generated by said reference pulse voltage means and output voltages of said detection circuits output when said reference pulse voltage is input are compared for calculating rotation angle of said rotation body to be measured. | 2011-07-14 |
20110169484 | MAGNETIC-LABEL SENSOR AND CARTRIDGE - A cartridge ( | 2011-07-14 |
20110169485 | MAGNETIC PARTICLE INSPECTION APPARATUS AND METHOD - A magnetic particle inspection (MPI) apparatus is disclosed that includes a chordal field coil pair and a radial field coil pair. The chordal field coil pair includes first and second chordal field coils configured to produce a chordally oriented magnetic flux about a test article. | 2011-07-14 |
20110169486 | Magnetostrictive Sensor for Tank Floor Inspection - A method of testing for defects in the bottom of an above ground storage tank, the tank bottom having a lip extending outwardly from the tank wall around the circumference of the tank. A special magnetostrictive sensor is designed to be placed on this lip. The sensor is placed over a strip of magnetostrictive material, which generally conforms in length and width to the bottom of the probe, with a couplant being applied between the strip and the lip surface. The sensor is then operated in pulse echo mode to receive signals from defects in the bottom of the tank. It is incrementally moved around the circumference of the tank. | 2011-07-14 |
20110169487 | OPTICAL FIBER TYPE MAGNETIC FIELD SENSOR - An optical fiber type magnetic field sensor having a light source, an incident side optical fiber guiding light from the light source, a polarizer linearly polarizing the light outgoing from the incident side optical fiber, a first Faraday rotator rotating polarization of the linearly polarized light by an intensity of an external magnetic field; an optical receiver, based on the polarization-rotated light, performing a photoelectric conversion to output the light as an electrical signal; a processor processing the electrical signal to output the intensity of the external magnetic field as an output voltage value; a second Faraday rotator and a permanent magnet further providing a certain non-90n degree (where n is an integer) polarization rotation angle, to a polarization rotation angle of light outgoing from the first Faraday rotator, with respect to a polarization axis of the polarizer; and a mirror. | 2011-07-14 |
20110169488 | METHOD AND STRUCTURE FOR TESTING AND CALIBRATING MAGNETIC FIELD SENSING DEVICE - A method of sensing a magnetic field including at least one magnetoresistive sensing element ( | 2011-07-14 |
20110169489 | RF COIL DOCKING STATION FOR MAGNETIC RESONANCE SYSTEMS - An RF coil docking station ( | 2011-07-14 |
20110169490 | MAGNETIC RESONANCE IMAGING APPARATUS - A Magnetic Resonance Imaging (MRI) apparatus according to an embodiment can execute a plurality of kinds of protocols varying in image contrast, and includes a storage unit and an output unit. The storage unit stores imaging conditions about the plurality of kinds of protocols. The output unit outputs onto a display unit an edit screen for receiving edit of a parameter that is an element of the imaging conditions. The edit screen is output by being separated into a common part that receives edit of parameter common to a plurality of kinds of protocols varying in image contrast, and an individual part that individually receives edit of parameter with respect to each protocol. | 2011-07-14 |
20110169491 | SPINE COIL ARRAY - The present embodiments relate to a spine coil array for an imaging system that includes a number of coil elements. The density of the coil elements changes at least once from a first region to a second region in at least one direction within the spine coil array. | 2011-07-14 |
20110169492 | NEUTRON GENERATOR - A neutron generator includes an ion source disposed in a pressurized environment containing an ionizable gas. The ion source includes a substrate with a bundle of carbon nanotubes extending therefrom. The ends of the nanotubes are spaced from a grid. Ion source voltage supply circuitry supplies a positive voltage potential between the substrate and the grid of the ion source to cause ionization of the ionizable gas and emission of ions through the grid. An ion accelerator section is disposed between the ion source and a target. The ion accelerator section accelerates ions that pass through the grid towards the target such that collisions of the ions with the target cause the target to generate and emit neutrons therefrom. The ion source, accelerator section and target are housed in a sealed tube and preferably the carbon nanotubes of the bundle are highly ordered with at least 10 | 2011-07-14 |
20110169493 | Identification of a Defective Filament in a Fluorescent Lamp - Control of delivery of current through one or more discharge lamps. Methods include alternately switching on and off switching elements that control a fluorescent lamp, in response to receiving input, until the brightness of the lamp decreases to a threshold. Further, methods include providing control signals at complementary duty cycles to further decrease the brightness and alternating the duty cycles of the signals applied to the filaments of the fluorescent lamp. | 2011-07-14 |
20110169494 | Method for the Operation of Illuminants - The invention relates to the operation of illuminants, in particular OLEDs. The invention relates to a method and a measuring instrument for determining the electrical properties of an OLED, the equivalent circuit diagram of which is composed of the parallel connection of an equivalent diode D | 2011-07-14 |
20110169495 | MONITORING MODULE INCLUDING E-FIELD-INDUCED ESD-SENSITIVE PATTERN AND PHOTOMASK INCLUDING THE MODULE - Provided are a monitoring module of an electrostatic discharge (ESD)-sensitive photomask, in which when an external electric field (E-field) exists, monitoring patterns are formed in the same direction as or a vertical direction to the external E-field, and a photomask including the module. The monitoring module includes a plurality of monitoring patterns, which are electrically isolated from one another and arranged at right angles to one another. At least one first monitoring pattern of the plurality of monitoring patterns is arranged in the same direction as an E-field existing outside the photomask. At least one second monitoring pattern of the plurality of monitoring patterns is arranged at substantially right angles to the first monitoring pattern in consideration of a direction in which charges move due to rotation of the photomask. | 2011-07-14 |
20110169496 | FAULT DETECTION OF ELECTRIC CONSUMERS IN MOTOR VEHICLES - Fault detection of electric consumers in motor vehicles including at least one electric consumer switchably arranged between a first electric potential and a second electric potential. The electric consumer is switchably connected both to the first and to the second potential. A first switch is arranged between the first potential and the consumer and a second switch is arranged between the second potential and the consumer. The first and the second switch must be closed at the same time in order to operate the consumer. Fault detection is carried out when the device consuming the electricity is visibly off, in that a third electric potential is tapped at a voltage divider arranged parallel to the second switch. Fault detection is carried out by monitoring the third electric potential and the positions of the first and second switches. | 2011-07-14 |
20110169497 | SHUNT CALIBRATION FOR ELECTRONIC PRESSURE SWITCHES - Disclosed herein is an electronic switch that comprises a pressure sensitive bridge array adapted to monitor pressure and activate an indicator when the monitored pressure exceeds a predetermined value indicative of a dangerous condition. The electronic switch further comprises a monitoring circuit adapted to test the overall operability of the pressure sensitive bridge array and its accompanying electronics control circuitry. | 2011-07-14 |
20110169498 | ARC FAULT LOCATION DETECTION FOR AIRCRAFT WIRING - A system for detecting the location of arc faults in an aircraft electrical wiring arrangement is provided. The system comprises a controller, operable to generate a test signal and a directional coupler for coupling the test signal into electrical wiring and for coupling reflected test signals from the electrical wiring to the controller. The electrical wiring comprises one or more wire under test and the controller is further operable to detect test signals reflected from arc faults in the wire under test and to analyse reflected test signals in order to determine one or more arc fault position therefrom. The wire under test may be live and testing can be performed without the need to use invasive in-line components. | 2011-07-14 |
20110169499 | HIGH SPEED MEASUREMENT OF RANDOM VARIATION/YIELD IN INTEGRATED CIRCUIT DEVICE TESTING - A test structure is provided that utilizes a time division sampling technique along with a statistical modeling technique that uses metal-oxide-semiconductor field effect transistor (MOSFET) saturation and linear characteristics to measure the mean (average) and sigma (statistical characterization of the variation) of a large population of electrical characteristics of electrical devices (e.g., integrated circuits) at high speed. Such electrical characteristics or sampling parameters include drive currents, leakage, resistances, etc. | 2011-07-14 |
20110169500 | TEST APPARATUS, ADDITIONAL CIRCUIT AND TEST BOARD - Provided is a test apparatus that tests a device under test, comprising a power supply that generates power supplied to the device under test; a transmission path that transmits the power generated by the power supply to the device under test; an intermediate capacitor that is provided between the transmission path and a ground potential; a charge/discharge current measuring section that measures charge/discharge current of the intermediate capacitor; and a load current calculating section that calculates a load current flowing through the device under test, based on the current measured by the charge/discharge current measuring section. | 2011-07-14 |
20110169501 | DELAY CIRCUIT - A sub-delay element has the same configuration as that of a main delay element, and applies a delay τ that corresponds to a bias voltage to a selected clock signal output from a first selector. A phase detectorgenerates a phase detection signal that corresponds to the phase difference between a selected clock signal that has propagated through the sub-delay element and a selected clock signal that has propagated through a bypass path. A counter performs a count operation according to the phase detection signal. A D/A converter supplies a bias voltage that corresponds to the count value of the counter to the main delay element and the sub-delay element. An initialization unit instructs a DLL circuit to actually operate, and sets the reference voltage to be supplied to the D/A converter based upon the fluctuation in the count value of the counter. | 2011-07-14 |
20110169502 | Power Calibration System - A calibration system for calibrating power sensors comprises a signal generator, a first signal splitter, a second signal splitter, a third signal splitter, a first measuring point, a second measuring point, a test port and a first power sensor. In this context, the signal generator is connected to the input of the first signal splitter. A first output of the first signal splitter is connected to the second signal splitter. A first output of the second signal splitter is connected to the test port. A second output of the second signal splitter is connected to the first measuring point. A second output of the first signal splitter is connected to the third signal splitter. A first output of the third signal splitter is connected to the first power sensor. A second output of the third signal splitter is connected to the second measuring point. | 2011-07-14 |
20110169503 | Chassis Shielding Effectiveness Evaluation System - A chassis shielding effectiveness evaluation system includes a chassis having a chassis ground. A board is located in the chassis and includes a board ground layer. A signal generator includes at least one ground member coupled to the chassis ground and a signal member coupled to the board ground layer. The signal generator is operable to send a signal through the signal member to the board ground layer. | 2011-07-14 |
20110169504 | METHOD AND APPARATUS FOR MEASURING BEARING CURRENTS IN AN ELECTRICAL MACHINE - The present disclosure relates to a measuring bearing currents in an electrical machine. According to exemplary embodiments, radio frequency signals that are generated by electric discharges are detected by an antenna near the bearing. A synchronizing signal is combined with the origin of the bearing current and signal triggered by the synchronizing signal is measured. | 2011-07-14 |
20110169505 | Systems for Transverse Electromagnetic Mode In-Situ Soil Testing - A slotted TEM transmission line and an in-situ TEM transmission line are utilized to determine both complex permittivity and permeability of soil. The permittivity and permeability information may be used by underground sensing techniques such as GPR and EMI to enhance information from these techniques. The in-situ probe provides that both complex permittivity and permeability can be measured simultaneously over a broad frequency range without disturbing the soil conditions. | 2011-07-14 |
20110169506 | DEVICE AND PROCESS FOR TOUCH AND PROXIMITY DETECTION - The invention relates to a device for touch/proximity detection, especially a capacitive switch device, which is designed to set switching states by approaching the switch device or by touching the switch device, in order to perform, for example, switching actions on an instrument. The invention also relates to a switch device, especially a switch device on a capacitive basis, for a cooktop, for operating the cooktop. | 2011-07-14 |
20110169507 | METHODS AND APPARATUS FOR THE DETERMINATION OF MOISTURE CONTENT - Methods and apparatus for determining water content in a bulk heterogeneous material using electromagnetic radiation. A radiation source and a radiation receiver are positioned such that the material to be measured is located between them. As the radiation signal is transmitted from the source to the receiver, the signal experiences a path loss due, at least in part to the presence of the material located between the source and the receiver. The path loss in the transmitted signal, when recorded over time may be used to determine the water content of the material. | 2011-07-14 |
20110169508 | Inductive sensor - The invention relates to an inductive sensor in which static damping of the sensor is suppressed. | 2011-07-14 |
20110169509 | ELECTROSTATIC MEMS DRIVER WITH ON-CHIP CAPACITANCE MEASUREMENT FOR AUTOFOCUS APPLICATIONS - A driver and capacitance measuring circuit includes a voltage source that selectively generates an output voltage at a first node during a driver mode to alter a capacitance of a device that is connected to the first node and that has a variable capacitance. A current source selectively provides one of a charging and discharging current at the first node during a measurement mode. A capacitance calculating circuit samples a voltage at the first node during the measurement node, determines a voltage change rate of the first node during the measurement mode and calculates the capacitance of the device based on the voltage change rate and a value of the one of the charging and discharging current. | 2011-07-14 |
20110169510 | CAPACITIVE DETECTION TYPE ELECTRO-MECHANICAL TRANSDUCER - A capacitive detection type electro-mechanical transducer comprises; a cell formed by a first electrode arranged on a substrate and a second electrode arranged on a vibration film, and a detection circuit for detecting a displacement of the vibration film, based on a capacity change between the first and second electrodes, wherein a plurality of the cells are classified into a plurality of groups, each one includes at least two cells, and the first electrodes or the second electrodes of the cells of the same one group are commonly connected to the same one detection circuit, and an addition circuit for adding, into single information, signals from the plurality of detection circuits corresponding to the plurality of groups, and for outputting the information, and a capacitive load for each one of the detectors are formulated to be dispersedly arranged. | 2011-07-14 |
20110169511 | NOVEL MEMS BIOSENSOR WITH INTEGRATED IMPEDANCE AND MASS-SENSING CAPABILITIES - A biosensor device ( | 2011-07-14 |
20110169512 | DETECTION OF FUEL CONTAMINATION IN LUBRICATING OIL - A method for measuring fuel contamination in oil that uses a material in contact with oil whereby fuel intrusion into the oil will change the electrical, mechanical, and/or chemical properties of the material as compared to the same electrical, mechanical, and/or chemical properties of the material when in contact only with mineral or synthetic oil only. | 2011-07-14 |
20110169513 | WIDE ACTIVATION ANGLE PINCH SENSOR SECTION AND SENSOR HOOK-ON ATTACHMENT PRINCIPLE - A resistive pinch sensor utilizing electrically conductive wires encapsulated in a resiliently deformable casing. A pinch is detected when one of the wires, which is normally separated by an air gap within the casing, contacts another wire lowering the electrical resistance therebetween. The described pinch sensors have wide activation ranges or angles. Tri-lobed designs provide wide activation range by incorporating at least three electrically-conductive conduits that are substantially equidistantly spaced circumferentially along the inner wall of a tubular casing. One of the conduits, or optionally an axially arranged electrically-conductive core may function as the reference element. Coaxial designs provide wide activation range by incorporating a central electrically-conductive core and a coaxial electrically-conductive tubular outer sheath that are normally spaced apart by at least one non-conductive spacer. | 2011-07-14 |
20110169514 | EQUIPMENT BURN-IN METHOD AND SYSTEM - An equipment burn-in method, which includes the equipment undergoing treatment in an oven, the oven undergoing cycles including at least one temperature-rise and/or temperature-fall transition, for which ventilation of the equipment is cut off during at least part of a temperature transition of the oven. | 2011-07-14 |
20110169515 | METHOD FOR PROVIDING ALIGNMENT OF A PROBE - A method for aligning a probe relative to a supporting substrate defining a first planar surface, an edge, and a first crystal plane includes the steps of masking the surface of the substrate to define an exposed area on the first surface at the edge; and etching, using an etch reagent, a recess in the exposed area, the recess defining first and second opposed sidewalls, an end wall remote from the edge, and a bottom wall. The method further includes the step of providing a probe substrate defining a second planar surface and a second crystal plane identical to the first crystal plane, and positioning the probe substrate so that the first and the second crystal planes are positioned identically when forming a probe from the probe substrate using the etch reagent, wherein the probe defines congruent surfaces to the first and second sidewalls. | 2011-07-14 |
20110169516 | PROBE ELEMENT HAVING A SUBSTANTIALLY ZERO STIFFNESS AND APPLICATIONS THEREOF - A microelectronic probe element can include a base, a tip, and a spring assembly coupled between the tip and the base. The spring assembly can include a first spring and a second spring, wherein the first spring has a negative stiffness over a predefined displacement range and the second spring has a positive stiffness over the predefined displacement range. The first spring and second spring can be coupled so that the negative stiffness and positive stiffness substantially cancel to produce a net stiffness of the tip relative to the base over the predefined displacement range. | 2011-07-14 |
20110169517 | MEMS PROBE CARD AND METHOD OF MANUFACTURING SAME - Provided are a micro-electro-mechanical system (MEMS) probe card and a method for manufacturing thereof. The MEMS probe card includes a substrate provide with a via hole filler conductor or a via hole filled with the resistor, the resistive film formed on the via hole and the substrate, the insulating film and the resistive film formed on the resistive film and the substrate, and the electrode formed on the substrate to cover the insulating film | 2011-07-14 |
20110169518 | PROBE CARD, SEMICONDUCTOR INSPECTING APPARATUS, AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE - A frame bonded and fixed to a back face of a probe sheet so as to surround a group of pyramid-shaped or truncated pyramid-shaped contact terminals collectively formed at a central region portion of the probe sheet on a probing side thereof is protruded from a multi-layered wiring board, and pressing force is imparted to the frame and a pressing piece at a central portion by a plurality of guide pins having spring property so as to tilt finely. | 2011-07-14 |
20110169519 | CONDUCTIVE FILM STRUCTURE, FABRICATION METHOD THEREOF, AND CONDUCTIVE FILM TYPE PROBE DEVICE FOR IC - A method for forming a conductive film structure is provided, which includes providing a flexible insulating substrate, forming a conductive film overlying the flexible insulating substrate, patterning the conductive film to form a plurality of micro-wires overlying the flexible insulating substrate, wherein the micro-wires are extended substantially parallel to each other, forming an insulating layer overlying the flexible insulating substrate and the micro-wires, and winding or folding the flexible insulating substrate along an axis substantially parallel to an extending direction of the micro-wires to form a conducting lump. | 2011-07-14 |
20110169520 | APPARATUS FOR MEASURING MINORITY CARRIER LIFETIME AND METHOD FOR USING THE SAME - An apparatus for measuring minority carrier lifetime is provided. The apparatus includes a resonant circuit having an inductor and a capacitor and configured to resonate at a measurement frequency. The apparatus also includes a ferromagnetic core having a first portion and a second portion. The first portion defines a gap and can be configured to direct therealong a magnetic field established by the inductor, such that lateral spreading of the magnetic field outside of the first portion is inhibited, and to direct the magnetic field generally uniformly across the gap. The second portion can be configured to direct the magnetic field therealong and, in conjunction with the first portion, into a closed loop. A radiation source can be configured to irradiate an area proximal to the gap defined by the first portion of the ferromagnetic core. | 2011-07-14 |
20110169521 | TESTING SYSTEM FOR POWER SUPPLY UNIT - A testing system for a PSU includes a test chamber and a control device. The test chamber includes a first partition with the PSU accommodated therein and a second partition with an electric load accommodated therein. The PSU is electrically connected to the electric load. The control device includes a microcontroller unit (MCU). The MCU is connected to a setting circuit and a temperature sensing circuit. The setting circuit is configured to set one of predetermined parameters. The temperature sensing circuit is capable of sensing temperature in the test chamber. The MCU is capable of automatically controlling a predetermined temperature in the test chamber and presetting a test time for testing the PSU. | 2011-07-14 |
20110169522 | FAULT-TOLERANT MULTI-CHIP MODULE - A multi-chip module (MCM) is described. This MCM includes multiple sites, where a given site in the multiple sites includes multiple chips with proximity connectors that communicate information through proximity communication within the MCM via multiple components associated with the given site. Note that the MCM includes global redundancy and local redundancy at the given site. In particular, the global redundancy involves providing one or more redundant sites in the multiple sites. Furthermore, the local redundancy involves providing one or more redundant chips in the multiple chips and one or more redundant components in the multiple components. | 2011-07-14 |
20110169523 | ADAPTIVE TERMINATION - A system for receiving data is provided. Too system includes an inductive data device, such as a device that receives high-speed data over an inductive coupling. An adjustable impedance is coupled to the inductive data device, where the adjustable impedance is used for dynamically controlling ringing in the inductive data device, such as by damping ringing signals generated by circuit inductances or capacitances. | 2011-07-14 |
20110169524 | RECONFIGURABLE LOGIC FABRICS FOR INTEGRATED CIRCUITS AND SYSTEMS AND METHODS FOR CONFIGURING RECONFIGURABLE LOGIC FABRICS - In accordance with the present invention there are provided herein asynchronous reconfigurable logic fabrics for integrated circuits and methods for designing asynchronous circuits to be implemented in the asynchronous reconfigurable logic fabrics. | 2011-07-14 |
20110169525 | SYSTEMS, PIPELINE STAGES, AND COMPUTER READABLE MEDIA FOR ADVANCED ASYNCHRONOUS PIPELINE CIRCUITS - Systems, pipeline stages, and computer readable media for advanced asynchronous pipeline circuits are disclosed. According to one aspect, the subject matter described herein includes a configurable system for constructing asynchronous application specific integrated data pipeline circuits. The system includes multiple modular circuit stages that are connectable with each other using transitional signaling and with other circuit elements to form multi-stage asynchronous application-specific integrated data pipeline circuits for asynchronously passing data through a series of stages based on a behavior implemented by each stage. The modular circuit stages each include sets of logic gates connected to each other for implementing the behaviors, the behaviors including at least one of conditional split, conditional select, conditional join, merge without arbitration, and stage arbitration. | 2011-07-14 |
20110169526 | IC OUTPUT SIGNAL PATH WITH SWITCH, BUS HOLDER, AND BUFFER - An electronic integrated circuit includes a signal path connected between the functional logic ( | 2011-07-14 |
20110169527 | SEMICONDUCTOR DEVICE HAVING OUTPUT DRIVER - To provide an output driver that outputs read data to outside and a mode register that sets a swing capability of the output driver. A transition start timing of the read data driven by the output driver is made relatively earlier when a swing capability of the output driver set by the mode register is set to be relatively large, and the transition start timing is relatively delayed when the swing capability of the output driver set by the mode register is set to be relatively small. With this configuration, a timing when the read data exceeds a threshold level can be caused to coincide with a desired timing regardless of the swing capability of the output driver. | 2011-07-14 |
20110169528 | CLOCK BUFFER CIRCUIT - A clock buffer for a clock network that reduces leakage current and lowers power consumption. The clock buffer includes a first CMOS transistor, a second CMOS transistor, and a leakage current prevention circuit connected to the first and second CMOS transistors. The leakage current prevention circuit includes a first PMOS transistor, which is connected between the source of a PMOS transistor of the first CMOS transistor and a power supply line, and a second PMOS transistor, which is connected between the source of a PMOS transistor of the second CMOS transistor and the power supply line. The first and second PMOS transistors are deactivated in response to an enable signal generated when a circuit block does not require the clock signal. The first and the second PMOS transistors have predefined widths and lengths such that the addition of these transistors in series with the CMOS transistors does not increase the propagation delay of the clock buffer circuit. Deactivating the first and second PMOS transistors disconnects the CMOS transistors from the power supply line, which prevents current leakage. | 2011-07-14 |
20110169529 | METHOD AND APPARATUS FOR SELECTING AN OPERATING MODE BASED ON A DETERMINATION OF THE AVAILABILITY OF INTERNAL CLOCK SIGNALS - A system and method to operate an electronic device, such as a memory chip, with an output driver circuit that is configured to include an ODT (On-Die Termination) mode detector detects whether there is sufficient internal clocking available to operate the ODT portion in the output driver in the synchronous mode of operation or to switch the operation to the asynchronous mode. The clock-sufficiency based determination of internal ODT mode of operation (synchronous vs. asynchronous) avoids utilization of complex and inflexible clock processing logic in an ODT control unit in the output driver. This enables the actual clocking to the ODT circuitry to be changed during various device operational modes (e.g., active, power down, etc.) without re-designing the ODT control logic for each of those modes. The simplicity and flexibility of the ODT mode detector design allows for efficient use of chip real estate without affecting the signal transfer speed of the output driver in the electronic device. Because of the rules governing abstracts, this abstract should not be used to construe the claims. | 2011-07-14 |
20110169530 | CIRCUIT FOR CLASSIFYING SIGNALS - A circuit for classification of analog input signals, comprising an analog memory component, such as a floating gate, used to store a threshold value; a threshold detection module used to determine whether the analog input signal exceeds the threshold value; a time delay module used to delay a processing of the analog signal; a time-amplitude window calculation module used to determine whether an amplitude of the analog input signal is between a lower limit and an upper limit of an amplitude window; and an output module indicating whether the amplitude of the analog signal is between the lower and the upper limit, wherein the indication is used to determine whether the analog input signal belongs to one of a plurality of analog signal classes. The classification is implemented in the analog domain, eliminating the need for sampling and digitizing the analog signal, consequently minimizing circuit area and power. | 2011-07-14 |
20110169531 | Methods and Systems for Detection of Zero Crossings in a Signal - Methods and systems for detection of zero crossings in a signal are described. For example, true zero crossings in an alternating voltage power source signal can be detected in the presence of noise pulses. The zero crossing detections are performed by establishing a value of a signal status counter, and at a repeating interval if the signal is a logic low value, the value of the signal status counter is decremented if the signal status counter is greater than a first value otherwise a flag is set to enable detection of a zero crossing in the signal. In addition, at the repeating interval, if the signal is a logic high value, the value of the signal status counter is incremented, and if after incrementing the signal status counter is equal to a second value and the flag is set, a zero crossing of the signal is declared. | 2011-07-14 |
20110169532 | ALTERNATING CURRENT SIGNAL CONVERTER - The invention relates to radioelectronic engineering, in particular to AC signal converters, and can be used as an autonomous AC voltage electrical power supply source and for other purposes. The proposed AC signal converter remains functional when one or more or all but one of the DC voltage sources fails and makes it possible to increase, to an unlimited degree, the output power thereof on account of an increase in the quantity of AC signal amplification and conversion stages and DC voltage sources. Furthermore, a square-wave AC input signal is converted into a signal of, or close to, any set shape (sinusoidal, saw-tooth etc.) at the amplification and conversion stages, at an output matching element, at the output of the amplification and conversion stages, at the output of the output matching element (transformer) or output matching elements (transformers), and, for loading the proposed AC signal converter, an AC signal which is optimal for this load is supplied. The proposed AC signal converter is characterized by a high degree of efficiency, low heat and power losses and also low costs. | 2011-07-14 |