39th week of 2011 patent applcation highlights part 23 |
Patent application number | Title | Published |
20110234177 | POWER SUPPLY DEVICE HAVING PRECHARGING FUNCTION - A power supply device includes a battery | 2011-09-29 |
20110234178 | METHOD AND DEVICE FOR REGULATION OF A ROTARY ELECTRICAL MACHINE FOR A MOTOR VEHICLE - A rotary electrical machine regulation device of the type which can control the electrical machine using a predetermined set value of a direct voltage (B+) of the on-board electrical network of the vehicle in which the machine is installed. An excitation current (EXC) is supplied to the alternator (machine), and has a duty cycle (RC) which is determined by a digital processing block ( | 2011-09-29 |
20110234179 | DIFFERENTIAL FOR A WIND POWER STATION - A differential gear for an energy production plant, in particular for a wind power plant, has three drives and three power take-offs, whereby a first drive is connected to a drive shaft of the energy production plant, a power take-off is connected to a generator ( | 2011-09-29 |
20110234180 | ELECTRICAL MACHINE SAFETY SYSTEM - An electrical machine system including a permanent magnet assembly having a magnetic field and a plurality of conductive coils, the magnet assembly and coils arranged for relative rotation between the coils and magnetic field in the manner of an electrical generator or motor, the system further comprising a current injector electrically connected to said coils and arranged selectively to supply a current signal thereto, the current signal being asynchronous with the frequency of rotation between the permanent magnet assembly and coils so as to heat and thereby demagnetise one or more magnet within said permanent magnet assembly. | 2011-09-29 |
20110234181 | DEVICE AND METHOD FOR MONITORING AND/OR ANALYZING ROTORS OF ELECTRIC MACHINES IN OPERATION - A method is provided for monitoring and/or analysis of electrical machines during operation. An electrical machine has at least one generator with a shaft, an exciter system and drive device that drives the shaft. In this case, a first signal, which describes a voltage across a rotor winding, and a second signal, which describes a current flowing through the rotor winding, are measured simultaneously. The two signals are supplied to an analysis unit. The signals are split into individual frequency components in the analysis unit. The impedance of the rotor winding is then determined in order to identify fault states in the electrical machine. | 2011-09-29 |
20110234182 | Modulated supply stage with feedback to switched supply - There is disclosed a voltage supply stage comprising: a selection means for selecting one of a plurality of power supply voltages in dependance on a reference signal representing a desired power supply voltage; a combining means for combining the selected power supply voltage with a correction signal to generate an adjusted power supply voltage; and an adjusting means adapted to generate the correction signal in dependence on the reference signal and the adjusted power supply voltage, wherein the selection means is arranged to select the one of the plurality of supply voltages further in dependence on a signal derived from one of the inputs to the combining means. | 2011-09-29 |
20110234183 | POWER SUPPLY CIRCUIT AND DYNAMIC SWITCH VOLTAGE CONTROL - According to one configuration, a monitor circuit monitors a delivery of power supplied by one or more switch devices to a dynamic load. Based on an amount of power delivered to the load as measured by the monitor circuit, a control circuit produces a voltage control signal. A gate bias voltage generator circuit utilizes the voltage control signal to generate a switch activation voltage or bias voltage. A switch drive circuit uses the switch activation voltage as generated by the bias voltage generator to activate each of the one or more switch devices during a portion of a switching cycle when a respective switch device is in an ON state, and the respective switch device conducts current from a voltage source through the switch device to the load. The control circuit adjusts the voltage control signal to modify a level of the switch activation voltage depending on the dynamic load. | 2011-09-29 |
20110234184 | START-UP IN-RUSH CURRENT PROTECTION CIRCUIT FOR DCDC CONVERTER - A protection circuit for protecting DCDC converter with a power MOS transistor from start-up in-rush current includes a coupling capacitor and a voltage clamping circuit. By using the coupling capacitor to turn-off the power MOS transistor, there is no current consumed during the normal operation of the circuit. Enable signal or leakage current circuit is used to discharge the capacitor so that the circuitry can work in another turning-on of power supply. | 2011-09-29 |
20110234185 | SEMICONDUCTOR-DEVICE DRIVING CIRCUIT, AND SEMICONDUCTOR APPARATUS INCLUDING DRIVING CIRCUIT - It is an object of the present invention to provide a driving circuit which is adapted, for a semiconductor device which exhibits a diode characteristic of flowing an abrupt current if the gate-source voltage therein exceeds a predetermined voltage, to have the functions of reducing electric-power consumption in high-load state, reducing the loss in the driving circuit in low-load states, preventing excessive voltages, excessive currents and excessive electric-power consumption, and reducing the loss in the semiconductor device. A gate control part in a driving circuit is adapted to control the voltage or the current which is supplied to the gate of a semiconductor device, according to signals indicative of operation states of the semiconductor device, wherein these signals are inputted from an operation-state detection part which detects operation states of the semiconductor device, and the semiconductor device exhibits a diode characteristic of flowing an abrupt current if the gate-source voltage therein exceeds a predetermined voltage. | 2011-09-29 |
20110234186 | HIGH VOLTAGE POWER SUPPLY - A high voltage power supply is provided. The high voltage power supply includes a soft-start circuit unit which outputs a natural voltage that decreases exponentially as time elapses and converts the natural voltage into a forced voltage having a predetermined scale if an enable signal is applied, a controller which compares the natural voltage output from the soft-start circuit unit with a reference voltage and outputs a control signal, and a converting unit which delays outputting a final voltage during a first predetermined time period and outputs the final voltage, which gradually increases as time elapses according to the control signal. | 2011-09-29 |
20110234187 | Voltage Regulator Bypass Resistance Control - Embodiments for at least one method and apparatus of controlling a bypass resistance of a voltage regulator are disclosed. One method includes generating a regulated output voltage based upon a switching voltage. The switching voltage is generated through controlled closing and opening of a series switch element and a shunt switch element, the series switch element and the shunt switch element being connected between voltages based on an input voltage. A control of a duty cycle of the switching voltage is provided by sensing and feeding back the regulated output voltage. The bypass resistance is controlled based on a parameter related to the duty cycle, wherein the control of the duty cycle is persistent during the control of the bypass resistance. | 2011-09-29 |
20110234188 | Buck Converter with Internal Ripple Compensation - A buck converter with internal ripple compensation includes a comparator for generating a comparison result, a constant-on-time trigger coupled to the comparator for generating a trigger control signal according to the comparison result, a pre-driver coupled to the constant-on-time trigger for controlling a high side switch and a low side switch, an output module coupled to a first node and a signal output end, and a ripple compensation circuit coupled to the high side switch, the low side switch, the first node, and the comparator for generating a compensation signal outputted to the comparator. | 2011-09-29 |
20110234189 | CURRENT CONTROL DEVICE FOR ELECTRIC LOAD - Initial calibration is performed only under normal-temperature environment, and accurate current control is performed under practical use temperature environment. A temperature sensor | 2011-09-29 |
20110234190 | METHOD AND SYSTEMS FOR CONDUCTION MODE CONTROL - Methods for selecting between the two modes (states) of operation, continuous conduction and discontinuous conduction, are disclosed. Systems that are capable of selecting the operating mode and operating in the continuous conduction mode or the discontinuous conduction mode are also disclosed. | 2011-09-29 |
20110234191 | SWITCH CONTROL DEVICE, MULTI-CHANNEL CONVERTER INCLUDING THE SAME, AND SWITCH CONTROLLING METHOD - The present invention relates to a switch control device, a multi-channel converter including the same, and a switch control method thereof. | 2011-09-29 |
20110234192 | ON/OFF DETECTION CIRCUIT - An ON/OFF detection circuit for detecting an electronic device includes a switch circuit, a current sampling circuit, an amplifying circuit, and a control circuit. The switch circuit includes an input terminal connected to a constant voltage source, an output terminal coupled to the electronic device, and a control terminal. The current sampling circuit is connected between the input terminal and the output terminal of the switch circuit, and is configured for sampling current flowing to the electronic device and converting sampled current into sampled voltage. The amplifying circuit is configured for filtering and amplifying the sampled voltage. The control circuit controls the ON and OFF of the electronic device and compares the sampled voltages with a comparison voltage to judge the electronic device is qualify or disqualify. | 2011-09-29 |
20110234193 | MULTIPLE PHASE SWITCHING REGULATOR WITH PHASE CURRENT SHARING - A phase current sharing network for a current mode multiphase switching regulator. The multiphase switching regulator includes switching networks for developing phase currents of switching phase networks controlled by pulse control signals for converting an input voltage to an output voltage. The regulator develops the pulse control signals based on current control values and at least one trigger value. The phase current sharing network includes conversion networks and a phase current combining network. Each conversion network provides a phase current value based on a corresponding phase current, such as by directly or indirectly measuring real current or by synthetically developing the phase current value. The phase current combining network develops an average phase current value based on the phase current values, and subtracts the average phase current value from each phase current value to provide the current control values used to control the switching networks. | 2011-09-29 |
20110234194 | INTERNAL VOLTAGE GENERATOR - A internal voltage generator includes a plurality of voltage level detection units, each configured to detect a voltage level of a corresponding internal voltage terminal, based on a predetermined target voltage level assigned to the corresponding internal voltage terminal, and generate a detection signal, a common internal voltage generation unit configured to generate an internal voltage through a pumping operation in response to the detection signal outputted from the voltage level detection units, and a path multiplexing unit configured to selectively output the internal voltage to one of the internal voltage terminals. | 2011-09-29 |
20110234195 | CONTROL CIRCUIT and ELECTRONIC DEVICE - A controller includes a difference detector that detects a difference between a switching timing of a first channel of a switching power supply including a plurality of channels, and a switching timing of a second channel of the switching power supply, the plurality of channels being coupled in common to an input power supply and performing switching operations in response to clock signals, and a timing adjuster that, based on a detection result of the difference detector, increases a difference between a timing of a clock signal supplied to the first channel and a timing of a clock signal supplied to the second channel when the difference between the switching timing of the first channel and the switching timing of the second channel is smaller than a first value. | 2011-09-29 |
20110234196 | VOLTAGE CONVERTER - There is provided a voltage converter capable of reliably preventing malfunctions of an electronic circuit to stably maintain an accurate operation by suppressing high-frequency noise generated on an input side. A DC-DC converter | 2011-09-29 |
20110234197 | BANDGAP CIRCUIT WITH TEMPERATURE CORRECTION - A temperature corrected voltage bandgap circuit is provided. The circuit includes first and second diode connected transistors. A first switched current source is coupled to the one transistor to inject or remove a first current into or from the emitter of that transistor. The first current is selected to correct for curvature in the output voltage of the bandgap circuit at one of hotter or colder temperatures. | 2011-09-29 |
20110234198 | Differential Reference Voltage Generator - A differential reference voltage generator generates a first differential reference voltage and a second differential reference voltage. The differential reference voltage generator includes a first operational amplifier, a first transistor, a first resistor, and a second resistor. The first operational amplifier has a negative terminal adapted to receive a reference voltage. The first transistor has a source receiving a power supply voltage and has a gate electrically connected to an output terminal of the first operational amplifier. The first resistor has a first terminal electrically connected to a drain of the first transistor, and has a second terminal electrically connected to a positive terminal of the first operation amplifier. The second resistor has a first terminal electrically connected to the second terminal of the first resistor, and a second terminal electrically connect to a current mirror. | 2011-09-29 |
20110234199 | DISTRIBUTED SAFETY MONITORING SYSTEM PROVIDED WITH A SAFETY LOOP AND METHOD OF TESTING SUCH A SYSTEM - A distributed safety monitoring system is provided with a first safety loop for connecting safety relays in series to a common power supply. The opening of any one of the safety relays can be detected by a current detector located in the safety loop. Each safety relay is part of a local safety monitoring device, which is provided with a local power supply and a test circuit, to allow local testing of the safety relay independently from the common power supply. Hence, the safety relays can be tested simultaneously. | 2011-09-29 |
20110234200 | Adaptive slip double buffer - A method includes monitoring a fill in an adaptive slip buffer of a digital to analog convertor; adjusting a number of samples that are read from the adaptive slip buffer per page as a function of the fill; and reading the number of samples from the adaptive slip buffer. An apparatus includes a digital to analog convertor including an adaptive slip buffer and a read address generator coupled to the adaptive slip buffer, wherein the read address generator includes an increment control that adjusts a number of samples that are read from the adaptive slip buffer per page as a function of fill of the adaptive slip buffer. | 2011-09-29 |
20110234201 | HIGH-FREQUENCY MEASURING DEVICE AND HIGH-FREQUENCY MEASURING DEVICE CALIBRATION METHOD - A method is provided for calibrating a high-frequency, measuring device so as to accurately measure high-frequency parameters within a chamber. A calibration parameter is calculated from impedance of a first set of three reference loads measured by a high-frequency measuring device and the true values of those impedances. A calibration parameter is calculated from an S parameter measured between a connection point where the high-frequency measuring device is connected and the inside of the chamber of a plasma processing device. An impedance within the chamber is calculated from a voltage signal and a current signal calibrated using the above calibration parameters. A second set of three reference loads, which include the impedance calculated in Step | 2011-09-29 |
20110234202 | OPTICAL VOLTAGE SENSOR - A polarizing optical system ( | 2011-09-29 |
20110234203 | VOLTAGE DETECTION CIRCUIT AND METHOD THEREOF - A voltage detection circuit comprises a plurality of even-number voltage detection nodes, at least one odd-number voltage detection node, a voltage differential generation circuit, a selection circuit and a computing circuit. The selection circuit is for controlling the coupling relationship between the voltage differential generation circuit and the even and odd-number voltage detection nodes, so that the voltage differential generation circuit generates a voltage differential between the nodes. The computing circuit knows a voltage of a first even-number voltage detection node being as a reference voltage or obtains the voltage of the first even-number voltage detection node on the basis of the reference voltage, and respectively obtains a voltage of the nodes on the basis of the voltage differential between two adjacent nodes and the obtained voltage of a first even-number voltage detection node. | 2011-09-29 |
20110234204 | RADIO-FREQUENCY POWER AMPLIFIER - A power amplifier includes: an input matching circuit including an inductor, the input matching circuit receiving an input signal and matching input impedances with each other; an amplifier amplifying the input signal that is passed through the input matching circuit; and a test circuit, wherein the test circuit includes: a capacitor connected to the inductor in the input matching circuit through first test switch; a negative resistance transistor provided between the inductor and first voltage source terminal with second test switch being interposed between the inductor and the negative resistance transistor; and a current source transistor provided between second voltage source terminal and the inductor, wherein, in testing, first and second test switches and the current source transistor are turned on to cause the inductor and the test circuit to form a oscillator and, in normal operation, first and second test switches and the current source transistor are turned off. | 2011-09-29 |
20110234205 | CIRCUIT FOR MEASURING THE EFFECTIVE CURRENT OF A SIGNAL TO BE MONITORED - The present invention relates to a circuit ( | 2011-09-29 |
20110234206 | ACCELERATION SENSOR - The present embodiments provide an acceleration sensor, which enables highly accurate detection and has an extremely compact size. The acceleration sensor of the present embodiments is provided with a substrate, a anchor portion formed on the substrate, a support beam, which has one end connected to the anchor portion and extends across a space from the substrate, and a proof mass which is connected to the other end of the support beam and held across a space from the substrate. The acceleration sensor is further provided with first and second piezoelectric bending resonators, a comparison unit, and a calculation unit. The first and second piezoelectric bending resonators have one end connected to the anchor portion and the other end connected to the proof mass or the support beam and have a stack of a first electrode, a first piezoelectric film, and a second electrode. The first and second piezoelectric bending resonators extend on the both sides of the support beam and perform bending resonance motion in a direction perpendicular to the piezoelectric film. The comparison unit measures a difference of a resonance frequency between the first and second piezoelectric bending resonators. The calculation unit calculates an acceleration in a direction perpendicular to the extending direction of the support beam in the substrate surface from the difference of the resonance frequency. | 2011-09-29 |
20110234207 | MAGNETIC TRANSDUCER CONFIGURATION FOR MAGNET-BASED POSITION SENSORS HAVING IMPROVED GEOMETRY FOR MORE PRECISE POSITION DETECTION - A magnetic transducer configuration is described having at least one permanent magnet element, which is magnetized in its longitudinal direction and has a pole transition of the longitudinal section having a pole transition. The permanent magnet element has a cross section in the pole transition of the longitudinal section, which is larger than the cross section of the permanent magnet element in an area outside of the pole transition of the longitudinal section. A magnetic position sensor is also described having a magnetic field sensor array and the magnetic transducer configuration according to the present invention. The magnetic field sensor array and the magnetic transducer configuration are situated displaceably in the longitudinal direction to one another in a plane-parallel manner. The magnetic field sensor array has at least one magnetic field sensor lying in a path along which the permanent magnet element moves during displacement of the magnetic transducer configuration with respect to the magnetic field sensor array. | 2011-09-29 |
20110234208 | CONFIGURABLE NON-CONTACT POSITION SENSOR - Embodiments herein relate to the general art of motor vehicles, and to the particular field motor vehicle components, especially sensors for electronic throttle controls. Particular embodiments include configurable Hall-effect sensors for use in vehicle controls. In various embodiments, the configurable sensors may include a flexible over molding that may allow the sensor assemblies to achieve an environmental rating conforming International Protection Rating IP 67 and/or IP 66. Additionally, because the sensor assemblies are modular, a single assembly may be configured in any number of different ways, including direct drive and indirect drive applications and multiple different proprietary interface connections, while maintaining compliance with Society of Automotive Engineers (SAE) standards. | 2011-09-29 |
20110234209 | ELECTROMAGNETIC MOTION SENSOR - An electromagnetic motion sensor includes a base, an electromagnetic induction layer, a block, and an emitting coil. The electromagnetic induction layer with a plurality of induction coils is arranged on the bottom of the base. The block is movably connected to the base by a plurality of elastic members. The emitting coil is fixed to a center of the bottom of the block facing the induction layer. A circuit inside the block provides current to the emitting coil. The block moves with the jerk of the motion sensor when the motion sensor is jerked, causing the elastic members to be distorted. The relative movement between the block and the magnetic induction layer causes more than one of the induction coils generate and output voltage signals according to the change of magnetic flux through the plurality of induction coils caused by the moving of the emitting coil. | 2011-09-29 |
20110234210 | APPARATUS FOR DETECTING DISPLACEMENT OF ELECTROMAGNETIC ACTUATOR - A displacement detecting apparatus of an electromagnetic actuator, including: an electromagnetic actuator including: a movable core; a drive coil which causes a displacement of the movable core; and a detection coil disposed at a position where a mutual coupling coefficient with the drive coil changes with the displacement, the actuator transmitting a drive force of the movable core to a mechanical system; a drive portion for supplying a drive current to the drive coil on the basis of a pulse width modulation signal; and a displacement detecting portion to which an output voltage of the detection coil is inputted, for outputting a displacement detection signal, wherein the displacement detecting portion includes: a sampling-signal generating portion for generating a sampling signal in synchronism with the pulse width modulation signal; and a synchronous sampling portion for outputting the displacement detection signal by sampling the output voltage in synchronism with the sampling signal. | 2011-09-29 |
20110234211 | ANGLE POSITION SENSOR - The present invention discloses an angular position sensor, which includes a rotor core as well as a stator core coaxially around this rotor core. Between the rotor core and the stator core is a first air gap, and inside the rotor core a second air gap, which is provided inside with a hard magnet. The stator core has a third air gap inside, which is provided inside with a magnetic flux sensing element. It is obvious that the present invention, by substituting the combination of the hard magnet and the rotor core for the design of ring magnet in the prior art, obtains the good linearity within a wider range. | 2011-09-29 |
20110234212 | MAGNETIC FLUX LEAKAGE INSPECTION DEVICE - Disclosed are a method and an improvement to the existing conventional magnetic flux leakage inspection device that employ some fixed magnets that are fixed inside the magnet yoke and some movably adjustable magnets, allowing their dipole orientation to be adjusted between 0° and 180° relative to that of the fixed magnets. A lever and gear set connected to the adjustable magnets can be operated to achieve desired level of magnetic strength of the device, including turning off the whole magnetic field, by causing the fields of the fixed and adjustable magnets to cancel each other. The disclosed adjustable yoke can also be used in other NDT/NDI applications where providing an adjustable magnetic strength is desirable. | 2011-09-29 |
20110234213 | TEST METHOD AND TEST APPARATUS FOR TESTING ELONGATED OBJECTS USING COIL - A test method for testing elongated objects comprising moving an elongated object in a feed-through direction through a feed-through coil arrangement having at least one feed-through coil, wherein the feed-through coil arrangement is secured to be transversely movable with respect to the feed-through direction of the object and is guided on the object passing through such that the feed-through coil arrangement can follow transverse movements of the object occurring transversely with respect to the feed-through direction of the object. | 2011-09-29 |
20110234214 | METAL DETECTOR SENSOR HEAD - A metal detector includes means for reducing the induction of eddy currents in conductive elements of a sensor head. The aim of this invention is to remove the effect of small pieces of conductive material, located within or close to the sensor head, being seen as sought targets as the sensor head is moved over magnetic matrix. The means is to surround the conductive material with material with high magnetic permeability and low losses in a time-varying magnetic field, say low-loss ferrite. This will prevent the reflected field from illuminating the conductive material so eddy currents are not generated. | 2011-09-29 |
20110234215 | Sensor Package and Method for Producing a Sensor Package - Some embodiments herein relate to a sensor package. The sensor package includes a printed circuit board with a laminar current conductor arranged on a first main surface of the printed circuit board. The sensor package also includes a sensor chip adapted to measure a current flowing through the laminar current conductor, wherein the sensor chip comprises a magnetic field sensor. The sensor chip is electrically insulated from the current conductor by the printed circuit board, and is arranged on a second main surface of the printed circuit board opposite to the first main surface. The sensor chip is hermetically sealed between the mold material and the printed circuit board, or is arranged in the printed circuit board and hermetically sealed by the printed circuit board. | 2011-09-29 |
20110234216 | SPIN WAVE ELEMENT - A spin wave element includes a substrate, a multilayer, a detecting portion, and two or more input portions. The multilayer having a lamination direction thereof is formed on the substrate and includes a first ferromagnetic layer. The first ferromagnetic layer has magnetization whose direction is in the lamination direction. The detecting portion and the input portions are formed on the multilayer and separated from each other by a first nonmagnetic layer. In addition, a portion of an outer edge of the multilayer viewed from the lamination direction makes a portion of one ellipsoid. The detecting portion and one of the input portions are located on the long axis of the one ellipsoid. The portion of the one ellipsoid is located on a side of one of the input portions. | 2011-09-29 |
20110234217 | ARRANGEMENT WITH VARIABLE SELECTION FIELD ORIENTATION FOR MAGNETIC PARTICLE IMAGING - The present invention relates to an arrangement ( | 2011-09-29 |
20110234218 | INTEGRATED MULTI-AXIS HYBRID MAGNETIC FIELD SENSOR - A multi-axis magnetic field sensing device combines two magnetoresistive sensors to measure the two orthogonal components X, Y of a magnetic field parallel to a system's plane and a Hall sensor to measure the Z component of the magnetic field substantially perpendicular to the system's plane. The two magnetoresistive sensors may be built together in one single chip and then stacked on top of a CMOS die embedding the Hall sensor and associated electronics for the signal processing management of the three sensors and the system's interface. | 2011-09-29 |
20110234219 | METHOD AND DEVICE FOR SENSING MICROWAVE MAGNETIC FIELD POLARIZATION COMPONENTS - A method for sensing a microwave magnetic field polarization component of a microwave field generated by a microwave device, comprises the steps of generating a static magnetic field having a predetermined amplitude and a predetermined direction relative to the microwave magnetic field polarization component to be sensed, preparing an atom cloud of ultracold probe atoms in defined hyperfine levels, wherein the hyperfine levels of the probe atoms are split in transition frequencies by the static magnetic field, applying a microwave pulse including the microwave magnetic field polarization component to be sensed to the atom cloud, wherein a spatial state distribution of the probe atoms is created by Rabi oscillations during the microwave pulse between the hyperfine levels of the probe atoms being resonant with the microwave magnetic field polarization component, and collecting a state image of the probe atoms, said state image depending on the spatial state distribution of the probe atoms and representing the magnetic field polarization component to be sensed. Furthermore, a sensor device being adapted for sensing a microwave field created by a microwave device is described. | 2011-09-29 |
20110234220 | SYSTEM AND METHOD FOR EMULATING NUCLEAR MAGNETIC RESONANCE WELL LOGGING TOOL DIFFUSION EDITING MEASUREMENTS ON A BENCH-TOP NUCLEAR MAGNETIC RESONANCE SPECTROMETER FOR LABORATORY-SCALE ROCK CORE ANALYSIS - A laboratory NMR methodology (and corresponding laboratory apparatus) defines a sample volume. The method stores downhole tool data corresponding to a hydrocarbon-bearing sample collected from a given subsurface formation. The downhole tool data includes parameters pertaining to magnetic fields used by a downhole tool during a suite of NMR measurements of the given subsurface formation. The sample is positioned in the sample volume of the laboratory apparatus, which applies a static magnetic field in the sample volume. Furthermore, the laboratory apparatus applies a suite of NMR measurements to the sample volume to thereby determine a property of the sample. The NMR measurements of the suite each include a pulse sequence of oscillating magnetic field in conjunction with a pulsed-mode gradient field. The pulsed-mode gradient field is based on the stored downhole tool data corresponding to the sample. A laboratory NMR methodology for optimizing downhole NMR measurements is also described. | 2011-09-29 |
20110234221 | MAGNETIC RESONANCE METHOD AND APPARATUS TO DETERMINE PHASE CORRECTION PARAMETERS - In a magnetic resonance system and operating method to determine phase correction parameters for a phase correction in MR image data, first and second phase correction data sets are thereby acquired and correlations are calculated between data of the second phase correction data set and data of the first phase correction data set. Phase correction parameters are determined, such as coefficients of a power series that approximates a curve of a phase difference between phase curves of the second and first phase correction data sets. | 2011-09-29 |
20110234222 | METHOD AND DEVICE FOR RECONSTRUCTING A SEQUENCE OF MAGNETIC RESONANCE IMAGES - A method for reconstructing a sequence of magnetic resonance (MR) images of an object under investigation, includes the steps of (a) providing a series of sets of image raw data including an image content of the MR images to be reconstructed, the image raw data being collected with the use of at least one radiofrequency receiver coil of a magnetic resonance imaging (MRI) device, wherein each set of image raw data includes a plurality of data samples being generated with a gradient-echo sequence, in particular a FLASH sequence, that spatially encodes an MRI signal received with the at least one radiofrequency receiver coil using a non-Cartesian k-space trajectory, each set of image raw data includes a set of homogeneously distributed lines in k-space with equivalent spatial frequency content, the lines of each set of image raw data cross the center of k-space and cover a continuous range of spatial frequencies, and the positions of the lines of each set of image raw data differ in successive sets of image raw data, and (b) subjecting the sets of image raw data to a regularized nonlinear inverse reconstruction process to provide the sequence of MR images, wherein each of the MR images is created by a simultaneous estimation of a sensitivity of the at least one receiver coil and the image content and in dependency on a difference between a current estimation of the sensitivity of the at least one receiver coil and the image content and a preceding estimation of the sensitivity of the at least one receiver coil and the image content. | 2011-09-29 |
20110234223 | METHOD AND APPARATUS FOR IMPROVING THE QUALITY OF MR IMAGES SENSITIZED TO MOLECULAR DIFFUSION - In a method and apparatus for magnetic resonance (MR) imaging of an object, and in particular MR imaging that yields images sensitive to molecular diffusion, undesired image artifacts induced by the rhythmic motion of the apparatus are reduced by manipulating the amplitude, phase, and timing of the diffusion encoding gradient pulses in a manner that interrupts, diminishes, or cancels the rhythmic motion. The residual vibration is evaluated manually or automatically to make such manipulations. | 2011-09-29 |
20110234224 | Modification of Frequency Response Profiles of Steady State Free Precession for Magnetic Resonance Imaging (MRI) - Apparatus and methods for modification of the frequency response profile of steady-state free precession (SSFP) type of magnetic resonance imaging (MRI) sequences. Using alternating dephasing moments within succeeding radiofrequency (RF) excitation pulses, the frequency response function of SSFP sequences can be modified to different shapes such as near triangular or bell shaped. The particular response function as produced by alternating dephasing moments can be used, among others, for functional brain MRI, MR spectroscopy or spatial encoding. | 2011-09-29 |
20110234225 | Magnetic Resonance Method for Quantification of Transverse Relaxation Times - Apparatus and methods for quantification of transverse relaxation times (T | 2011-09-29 |
20110234226 | MAGNETIC RESONANCE IMAGING APPARATUS - According to one embodiment, a magnetic resonance imaging apparatus is provided. A first imaging unit captures a plurality of first image data including first and second reference frames. The frames include a reference position and a target region in an object. A movement amount calculation unit calculates a movement amount of a local position between the first and second reference frames. A correction parameter setting unit sets a first correction parameter for correcting body motion of the object, based on the movement amount. An error map generating unit generates a predictive error map including a pixel value corresponding to a predictive correction error. The predictive correction error is obtained from a predictive position based on the movement amount and a predictive correction position based on the first correction parameter. A display unit displays the predictive error map and the first image data. | 2011-09-29 |
20110234227 | Designing a time dependency for a k-space trajectory, in particular a spiral - A method for designing the time dependence function k | 2011-09-29 |
20110234228 | MAGNETIC RESONANCE SYSTEM AND METHOD TO CREATE A MAGNETIC RESONANCE IMAGE DATA SET BY RADIAL SCANNING OF A MAGNETIC RESONANCE SYSTEM - In a magnetic resonance apparatus and method to generate an image data set by means of a radial scanning of a raw data set, at least one calibration measurement is implemented for at least one predetermined spoke of the radial scan, and a gradient moment difference between an assumed gradient moment and an actually applied gradient moment is determined along the at least one predetermined spoke. Readout of all spokes of the predetermined raw data set ensues by activating multiple magnetic field gradients in spatial directions in order to respectively read out scan points of a respective spoke. The position of each scan point of each spoke is corrected depending on the gradient moment difference, by the position of the respective scan point that is assumed based on the respective activated magnetic field gradients being shifted by the gradient moment difference. | 2011-09-29 |
20110234229 | MAGNETIC RESONANCE SYSTEM - A magnetic resonance system includes at least one coil and at least one coaxial line connecting the at least one coil to an electronic receive system. The at least one coil includes a preprocessing device that converts the received signals to at least one transmission frequency that is different from a transmit frequency. The coaxial line includes at least one sheath wave barrier with a trap suppressing sheath waves of transmit frequency both on the outside and the inside of a sheath conductor of the coaxial line. | 2011-09-29 |
20110234230 | Azimuthal At-Bit Resistivity and Geosteering Methods and Systems - Logging tools and methods employing an at-bit loop antenna to acquire azimuthal resistivity measurements proximate to the bit enable low-latency geosteering signals to be generated. In some embodiments, the at-bit antenna is part of a bottom hole assembly that includes a drill bit, a mud motor, and a resistivity tool. The mud motor is positioned between the at-bit antenna and the resistivity tool. The resistivity tool includes at least one loop antenna that is not parallel to the at-bit loop antenna. The at-bit antenna is part of an at-bit module that, in some embodiments, transmits periodic electromagnetic signal pulses for the resistivity tool to measure. In other embodiments, the at-bit module measures characteristics of electromagnetic signal pulses sent by the resistivity tool and communicates the measured characteristics to the resistivity tool via a short hop telemetry link. | 2011-09-29 |
20110234231 | DETECTING DEVICE AND DETECTING METHOD FOR MONITORING BATTERY MODULE - A detecting device and a detecting method for monitoring a battery module are provided. The battery module is electrically connected to a load and includes a first battery unit, a second battery unit and a connecting device. The connecting device connects the positive electrode of the first battery unit to the negative electrode of the second battery unit. The detecting device includes a shunt, a voltage detecting module and a control module. The shunt is serial connected between the battery module and the load to measures the load current. The voltage detecting module measures the voltage difference across the connecting device between the positive electrode and the negative electrode. The control module computes the equivalent resistance across the connecting device between the positive electrode and the negative electrode according to the load current and the voltage difference. Therefore, the hazard caused by aging of the electric circuit can be prevented by monitoring the equivalent resistance, which infers the change of the assembly quality. | 2011-09-29 |
20110234232 | SORTING MACHINE OF BATTERY CELL AND SORTING METHOD THEREOF - A battery cell sorting machine includes an inserting unit into which a battery cell is inserted, a measuring unit on which the inserted battery cell is placed, an open circuit voltage (OCV) measuring unit configured to measure an OCV of the battery cell placed on the measuring unit, a loading unit configured to discharge the battery cell placed on the measuring unit, a discharge voltage measuring unit configured to measure a discharge voltage of the battery cell discharged by the loading unit, and a control unit configured to sort battery cells placed on the measuring unit into different groups, wherein the control unit is configured to calculate a voltage differential between the OCV and the discharge voltage of each of the battery cells and to sort the battery cells having corresponding voltage differential ranges between the OCV and the discharge voltage into one group. | 2011-09-29 |
20110234233 | Ionization Gauge Having Electron Multiplier Cold Emission Source - An ionization gauge includes an electron generator array that includes a microchannel plate that includes an electron generating portion of the microchannel plate comprising a source for generating seed electrons and an electron multiplier portion of the microchannel plate, responsive to the seed electrons generated by the electron generating portion, that multiplies the electrons. The ionization gauge includes an ionization volume in which the electrons impact a gaseous species, and a collector electrode for collecting ions formed by the impact between the electrons and gas species. The collector electrode can be surrounded by the anode, or the ionization gauge can be formed with multiple collector electrodes. The source of electrons can provide for a spontaneous emission of electrons, where the electrons are multiplied in a cascade. | 2011-09-29 |
20110234234 | SUBSTANCE DETECTION METHOD AND SUBSTANCE DETECTION DEVICE - A detection method of detecting a target substance, the method includes exciting the target substance by irradiating an atmosphere of a detection space with light having a first wavelength that excites the target substance from a ground state to an excited state on the basis of the energy level structure of the target substance; ionizing the target substance by irradiating the atmosphere of the detection space with light having a second wavelength that excites the target substance from the excited state to an energy state substantially equal to or higher than a vacuum level; making the ionized target substance adsorb to a detector by electric field acceleration; and detecting the amount of adsorption of the target substance. | 2011-09-29 |
20110234235 | Surface Ionization Detector - The present invention refers to a surface ionization detector comprises an emitter, a heating rod, a collecting electrode, a reducing liner and a housing. The emitter is made of molybdenum, platinum or alloy, and in the form of cylinder or a wire spiral. The heating rod heats and supports the metal emitter. When the heating rod is heated to 300-500° C., organic amine compounds collide with the surface of the emitter, generating positive ions through surface thermal ionization and thus are detected. The lowest detecting limit value of tertiary amine by the detector in the present invention can achieve to 10 | 2011-09-29 |
20110234236 | METHOD AND A DEVICE FOR DETECTING AN ELECTRICAL FAILURE AFFECTING AN ELECTRIC CONTROL SYSTEM OF A HYDRAULIC ACTUATOR OF VARIABLE GEOMETRIES OF AN AEROENGINE - After the control system has been started, which system has two control paths that are used as alternatives for delivering a control electric current to an electrohydraulic member for transforming said current into hydraulic power that is delivered to the actuator, and before powering a starter-generator of the engine, the detection method comprises implementing the following steps for each of the control paths in succession:
| 2011-09-29 |
20110234237 | AIRCRAFT SLAT DISCONNECT SENSOR - A slat disconnect sensor includes a base. First and second arms are spaced apart from one another and are operatively supported by the base. At least one of the first and second arms have an end mounted to the base and is rotatable relative thereto at a pivot between connect and disconnect conditions. A mechanical link includes first and second link portions respectively secured to the first and second arms. The link interconnects the first and second arms and includes a weakened area providing a frangible connection in the connect condition and is configured to break at the frangible connection in the disconnect condition. A fuse includes first and second fuse portions operatively mounted to the first and second arms. The fuse is interconnected between the first and second arms providing continuity in the connected condition, and continuity is broken between the first and second portions in the disconnect condition. | 2011-09-29 |
20110234238 | SIMULATION OF PRINTED CIRCUIT BOARD IMPEDANCE VARIATIONS AND CROSSTALK EFFECTS - A method for altering an impedance of a conductive pathway on a microelectronic package includes applying a magnetic field to the conductive pathway. The microelectronic package may be, for example, a printed circuit board. The method also includes controlling a magnitude of the magnetic field at the conductive pathway for altering the impedance of the conductive pathway. The magnetic field may be applied by, for example, an electromagnet or a permanent magnet. A magnetic field may also be applied for simulating crosstalk effects on a conductive pathway. | 2011-09-29 |
20110234239 | Two-Port De-Embedding Using Time Domain Substitution - A method is provided for de-embedding the S-parameter response of an electrical DUT embedded in an electrical network. The method comprises making first and second sets of S-parameter measurements in the frequency domain at a port or measurement reference plane to the network containing the DUT. For the second measurement, a known impedance condition is created at the embedded location of the DUT. The first and second sets of measurements are transformed to the time domain, and then gated to select portions of the time-domain-transformed responses that correspond to paths that include the DUT and known impedance condition, respectively. The gated time domain responses are then transformed back into the frequency domain, yielding first and second sets of selected S-parameter measurement responses. Reflection S-parameters for the DUT are then determined as a function of the first and second sets of selected S-parameter measurement responses and the known impedance condition. | 2011-09-29 |
20110234240 | MONITORING DEHYDRATION USING RF DIELECTRIC RESONATOR OSCILLATOR - Technologies are generally described for monitoring dehydration levels of a subject using Radio Frequency (RF) dielectric resonant oscillators (DROs) that may be affixed to the skin of the subject. According to some example aspects, a sensor comprising a microstrip ring resonator may be affixed to the skin and used to determine the change in hydration of a person quantitatively and/or qualitatively. An RF emitter can be configured to emit a scanning signal to the sensor, where the scanning signal can be swept over a specified frequency range. The sensor is configured to resonate in response to the scanning signal, where characteristics of the sensor's resonance (e.g., the specific frequency and “Q” factor of the resonance) is impacted by dielectric losses of the sensor to the skin due to hydration level of the subject. | 2011-09-29 |
20110234241 | METHOD AND SYSTEM FOR PROTECTING PRODUCTS AND TECHNOLOGY FROM INTEGRATED CIRCUITS WHICH HAVE BEEN SUBJECT TO TAMPERING, STRESSING AND REPLACEMENT AS WELL AS DETECTING INTEGRATED CIRCUITS THAT HAVE BEEN SUBJECT TO TAMPERING - A system employs physical unclonable functions of an integrated circuit for detecting integrated circuits and protecting products and technology from integrated circuits which have been subject to tampering, stressing and replacement, and counterfeit components. The system includes a sensor detecting a characteristic impedance generated as a result of controlled access to a memory device of the integrated circuit. The characteristic impedance is applied in the creation of a discrimination matrix of values based on electrical interface signals for the integrated circuit. The sensor includes a ring oscillator and associated monitoring components. The ring oscillator is composed of the memory device of the integrated circuit and a sensory circuitry, wherein changes in a frequency generated by the ring oscillator is indicative of changes in circuitry. | 2011-09-29 |
20110234242 | FORKLIFT TRUCK WITH A DEVICE FOR DETECTING A WEIGHT LOAD - A forklift includes a chassis component having an opening in the form of one of a recess and a cutout; and a measuring element disposed in the opening and configured to record and translate changes in at least one of the geometric shape and size of the opening into electrical measurement signals dependent on a magnitude of the changes. | 2011-09-29 |
20110234243 | INTRODUCED IN MONITORING SYSTEM OF DIELECTRIC STATE OF HIGH VOLTAGE EQUIPMENTS WITH CAPACITIVE INSULATION, SUCH AS CONDENSIVE BUSHINGS, CURRENT TRANSFORMERS, POTENTIAL TRANSFORMERS AND SIMILAR - “Improvements Introduced in Monitoring System of Dielectric State of High Voltage Equipments with Capacitive Insulation, Such as Condensive Bushings, Current Transformers, Potential Transformers and Similar” allow to detect quick evolution insulation deteriorations and to emit correspondent alarms, being also able to verify their consistency in order to avoid false alarms as well as to automatically disconnect the equipment in case of a critical deterioration; it also allows to monitor in real time the BPDs quipped condensive bushings state as well as the bushings applied in HVDC high voltage direct current. | 2011-09-29 |
20110234244 | DEVICE FOR THE CAPACITIVE MEASUREMENT OF THE QUALITY AND/OR DETERIORATION OF A FLUID - The invention concerns a device for the capacitive measurement of the quality and/or deterioration of a fluid, comprising a sensor encapsulated in a perforated case fixed in the vat of a cooking apparatus that has a bottom, wherein the sensor is connected to an electronic processing circuit, wherein the sensor includes a pair of flat electrodes that each have the shape of a comb with a plurality of teeth, which are approximately parallel to each other and extends from a base, which the electrodes are arranged in relation to each other such that the teeth of one electrode fit between the teeth of the other electrode in approximately the same plane, and wherein the encapsulated sensor is oriented in the vat such that the longitudinal axis of each electrode base extends parallel to the bottom of the vat and in that the plane of the sensor electrodes forms an angle of between 0° and 60° with the vertical direction. | 2011-09-29 |
20110234245 | POWER CIRCUIT - Various embodiments provide systems and methods for controlling sub-system components during power disturbance events. More particularly, various embodiments provide systems and methods for preventing a controller ( | 2011-09-29 |
20110234246 | STRUCTURAL DETERMINATION APPARATUS AND METHOD - According to a first aspect of the present invention there is provided apparatus arranged to determine an interface between two components, comprising: a reference electrode arranged to be connected to a constant voltage supply or ground; a measurement electrode, and a field generating device arranged to establish an electric field in at least one of the components; wherein the field generating device is configured to establish the electric field across the measurement electrode, and the apparatus is configured to measure a potential difference between the measurement electrode and the reference electrode, the potential difference between the measurement electrode and the reference electrode being indicative of the interface between the components. | 2011-09-29 |
20110234247 | WAFER CHUCK INCLINATION CORRECTING METHOD AND PROBE APPARATUS - A method for correcting inclination of a wafer chuck includes obtaining in advance a correction amount for each of the semiconductor chips which corrects the inclination of the wafer chuck in the case of applying a contact load to at least each one of the semiconductor chips and storing each of the correction amounts in a data storage unit; calculating a total correction amount for correcting the inclination of the wafer chuck by calculating the correction amount of each of the semiconductor chips bringing into contact with the probes when the semiconductor wafer comes into electrical contact with the probes and adding the calculated correction amounts; and correcting the inclination of the wafer chuck based on the total correction amount. | 2011-09-29 |
20110234248 | CIRCUIT BOARD TESTING DEVICE WITH SELF ALIGNING PLATES - A circuit board tester and method that precisely aligns the probe plate and circuit board is disclosed. With a circuit board and probe plate mounting within a housing having a top and bottom, hinged together, at closure there may be slight misalignments of the two. By making one of the two plates floating, or laterally slideable with respect to each other, it is possible to make final alignment at closure. One of the two plates can be provided with a pin and the other with a pin receiving alignment block. With the lateral sideability, the pin and block can insure proper probe alignment. Additional systems for correcting misaligned pins or blocks are also disclosed. | 2011-09-29 |
20110234249 | TEST METHOD AND INTERPOSER USED THEREFOR - An interposer to be mounted with an integrated circuit to be a test object is provided with a switch and a probe to detect an electric current corresponding to individual terminals of the integrated circuit. A test pattern signal is then inputted to the integrated circuit through a test substrate as a switch that is connected to a power supply terminal of the integrated circuit and that is turned off. If the integrated circuit normally operates and the current values of all the terminals of the integrated circuit are within a tolerance, the power supply terminal connected to the turned-off switch is identified as a terminal that may be removed. | 2011-09-29 |
20110234250 | PROBE - A probe for testing electronic properties of a circuit board by contacting with a weld bead on the circuit board is provided. The probe includes a main body. The main body includes an end surface, a receiving portion defined on the center of the end surface, and four positioning slots communicating with the receiving portion. | 2011-09-29 |
20110234251 | PROBE CARD - A probe card installed in a probe device includes a supporting plate capable of supporting a contact body and a circuit board installed above a top surface of the supporting plate. A connection member is installed at a top surface of the circuit board and the supporting plate and the connection member are connected to each other by a connection body. Load control members are installed at a top surface of the connection member and capable of maintaining a contact load between the contact body and an object to be inspected at a constant level. Elastic members are installed at a peripheral portion of the connection member and capable of fixing a horizontal position of the supporting plate. An intermediate member is installed between the circuit board and the supporting plate and configured to elastically and electrically connect the circuit board and the supporting plate. | 2011-09-29 |
20110234252 | WAFER UNIT FOR TESTING AND TEST SYSTEM - Provided is a test wafer unit for testing a plurality of semiconductor chips formed on a semiconductor wafer, the test wafer unit including: a test wafer having a shape corresponding to a shape of the semiconductor wafer; and a plurality of test circuits formed on the test wafer, each test circuit provided to correspond to two or more of the plurality of semiconductor chips and testing the two or more semiconductor chips. The test wafer unit may include a plurality of connection terminals formed on the test wafer in one to one relation with test terminals of the plurality of semiconductor chips, where each of the plurality of connection terminals is connected to a corresponding one of the test terminals. | 2011-09-29 |
20110234253 | INTEGRATED CIRCUIT DIE TESTING APPARATUS AND METHODS - A wafer is disclosed that includes a plurality of pipeline interconnected integrated circuit dies that form a plurality of pipelines. A plurality of dies in each pipeline is connected to receive scanned output test data from a neighboring die in a pipeline. A wafer level test access mechanism (TAM) transceiver circuitry, located outside the plurality of pipeline interconnected IC dies, is connected in common to each of the pipelines to provide input test data in a parallel fashion to the plurality of pipelines. The wafer level test access mechanism transceiver circuitry also provides output test results from each of the pipelines for evaluation by a computerized test system. In one embodiment, the wafer level test access mechanism transceiver circuitry is wireless so that it wirelessly receives test data to be passed through the multiple pipelines on a wafer and also includes wireless transmit circuitry to transmit test results from each of the pipelines. When on the wafer, the dies in a pipeline are interconnected with pipeline die test interconnection paths that provide pipeline test information interconnection among the plurality of dies in the pipeline. | 2011-09-29 |
20110234254 | TERMINAL DISCRIMINATING APPARATUS AND TERMINAL DISCRIMINATING METHOD USING THE SAME - A terminal discriminating apparatus and a terminal discriminating method using the same are provided. The terminal discriminating apparatus includes: a measurement unit for measuring a pull-up voltage and a pull-down voltage of each of candidate terminals to be discriminated; a discriminating unit for comparing the pull-up voltages, pull-down voltages, and the differences between the pull-up voltages and pull-down voltages for the candidate terminals to discriminate the types of the candidate terminals; and an output unit for outputting results of the discrimination of the candidate terminals transferred from the discriminating unit. The types of the candidate terminals can be discriminated by comparing the pull-up voltage, the pull-down voltage, and the differences between the pull-up voltages and the pull-down voltages for the candidate terminals. | 2011-09-29 |
20110234255 | FAULT DETECTION CIRCUITS FOR SWITCHED MODE POWER SUPPLIES AND RELATED METHODS OF OPERATION - A circuit for detecting fault conditions in a supply circuit includes a monitoring circuit and a comparator circuit. The monitoring circuit is operable to output a detection signal related to a control signal for the switched mode power supply. The control signal may be configured to operate at least one switch of the supply circuit between alternating activated and deactivated states to supply power to a load. The comparator circuit is operable to compare the detection signal to a range defined by first and second thresholds and output a fault signal according to a relationship of the detection signal to the range over a time period. Related methods of operation are also discussed. | 2011-09-29 |
20110234256 | POWER GENERATION SYSTEM AND SENSING SYSTEM - A power generation system includes a support unit configured to support a power transmission line disposed on a transmission line tower, and a power generation unit. The support unit includes a support line having an end part connected to the power transmission line and a rotary body configured to rotate in a manner cooperating with the support line. The power generation unit is configured to generate electric power in response to rotation of the rotary body caused by movement of the support line resulting from tension of the power transmission line. | 2011-09-29 |
20110234257 | OUTPUT DRIVER ROBUST TO DATA DEPENDENT NOISE - Techniques for controlling a driver to reduce data dependent noise, such as simultaneous switching effects and cross-talk effects. A plurality of drivers may each receive a data segment to transmit and a plurality of data segments that other drivers will transmit. A driver controller may adjust the time at which the data segment is transmitted in response to the plurality of data segments that the other drivers will transmit. The adjustment may compensate for simultaneous switching noise and cross-talk by, for example, delaying the transmission of a data segment or changing the slew rate of the signal carrying the data segment. | 2011-09-29 |
20110234258 | ENHANCED FILED PROGRAMMABLE GATE ARRAY - An enhanced performance field programmable gate array integrated circuit comprises a field programmable gate array and other functional circuitry such as a mask-programmable gate array in the same integrated circuit. A circuit interface provides communication between the field programmable gate array, the mask-programmable gate array and the integrated circuit I/O. | 2011-09-29 |
20110234259 | OPPORTUNISTIC BUS ACCESS LATENCY - A bus system that includes a plurality of signal driving devices coupled to a common signal bus, a bus controlled circuit coupled to the common signal bus, and a compare circuit. The plurality of signal driving devices include a first signal driving device and a second signal driving device. The bus controller includes delay compensation circuitry with a configurable delay for each of the signal driving devices. The delay compensation circuitry has a current delay chain configuration associated with the first signal driving device. The compare circuit is configured to compare a first configurable delay associated with a first signal driving device to a second configurable delay associated with a second signal driving device of the plurality of signal driving devices, and for generating an output responsive to the comparing that indicates if the current delay chain configuration can be used by the second signal driving device. | 2011-09-29 |
20110234260 | CONSTANT VOLTAGE CIRCUIT - A current source generates a reference current. A first transistor is a depletion-type MOSFET arranged such that one terminal thereof is connected to the current source and its gate is connected to its source. A second transistor is an enhancement-type MOSFET arranged such that one terminal thereof is connected to the other terminal of the first transistor, the other terminal thereof is connected to a fixed voltage terminal, and its gate and drain are connected. A third MOSFET is an enhancement-type P-channel MOSFET arranged such that one terminal thereof is connected to the current source, the other terminal thereof is connected to the fixed voltage terminal, and its gate is connected to a connection node connecting the first and second transistors. A constant voltage circuit outputs at least a voltage that corresponds to the gate voltage of the third transistor or a voltage that corresponds to the gate voltage thereof. | 2011-09-29 |
20110234261 | DIGITALLY CONTROLLED HIGH Q FACTOR CAPACITOR - A control circuit and a conversion circuit. The control circuit may be configured to generate an analog control signal in response to a digital control signal. The conversion circuit may be configured to generate a capacitance signal in response to the analog control signal. | 2011-09-29 |
20110234262 | DRIVER CIRCUIT OF DISPLAY DEVICE - A driver circuit includes a mode control unit and a plurality of source drivers to drive a display panel including pixel cells on each scan line. Each source driver has M driving channels, and two subsets of the driving channels are respectively in a first mode and a second mode according to a preset mode sequence. The 1 | 2011-09-29 |
20110234263 | DRIVER AND OUTPUT BUFFER CIRCUIT - A driver circuit transmits a signal generated by a signal level generation circuit to a circuit to be measured by transmitting the signal to a output buffer circuit via a circuit (prebuffer circuit) that drives the output buffer circuit and causing the output buffer circuit to drive a transmission line. The driver circuit includes the prebuffer circuit and a replica buffer circuit formed by imitating the prebuffer circuit. The prebuffer circuit and the replica buffer circuit are disposed in parallel. The driver circuit temporarily increases input bias current to be supplied to output-stage transistors of the output buffer circuit on the basis of output current of the replica buffer circuit during transition of an input or output signal. | 2011-09-29 |
20110234264 | Load Driver - A method for driving a load includes driving a load to an initial voltage within a voltage window, the voltage window based on an input voltage and an offset voltage, and driving the load to approximately the input voltage. | 2011-09-29 |
20110234265 | Programmable Frequency Divider - A clock divider and method of operating the same. In various embodiments, the clock divider may be configured to divide clock frequencies by both even and odd divisors. The divisor may be an integer that is represented by an N-bit value, and the clock divider may be programmable by writing the N-bit value to a register. The divisor may be even or odd. During operation, the clock divider may decrement a counter down from an initial value (derived from the N-bit value representing the divisor) to a trigger value. When the trigger value is detected, the clock divider may cause the output clock to toggle. The trigger value may depend on whether the divisor is even or odd. The clock divider may be re-programmed during operation by writing a new N-bit value into the register. Re-programming may include changing the divisor from an even value to an odd value. | 2011-09-29 |
20110234266 | FREQUENCY DIVIDER FOR GENERATING OUTPUT CLOCK SIGNAL WITH DUTY CYCLE DIFFERENT FROM DUTY CYCLE OF INPUT CLOCK SIGNAL - A frequency divider includes a plurality of logic circuit blocks. Each of the logic circuit blocks has a plurality of control terminals. At least one of the control terminals of one of the logic circuit blocks is arranged to receive an input clock signal having a first duty cycle. At least one of the remaining control terminals of the one of the logic circuit blocks is arranged to couple another one of the logic circuit blocks by a positive feedback. A clock signal at the at least one of the remaining control terminals has a second duty cycle different from the first duty cycle. | 2011-09-29 |
20110234267 | Semiconductor device and method for controlling flip-flop - A semiconductor device according to one aspect of the present invention includes: a flip-flop; a clock control circuit that controls a clock signal supplied to the flip-flop; and a controller that supplies a data retention signal to the flip-flop and controls the clock control circuit. When the flip-flop is driven by a negative edge of the clock signal and retains data when the clock signal is at a high level, the controller controls the clock control circuit so as to supply a high-level clock signal to the flip-flop after the input clock signal is fixed and before the flip-flop retains data. This prevents the occurrence of unintended latching of data when the flip-flop having a retention function retains data. | 2011-09-29 |
20110234268 | Apparatus and Method for Host Power-On Reset Control - A host power-on reset control circuit includes a comparator connected to receive both a divided version of a supply voltage and a reference voltage. The comparator generates and outputs a high digital state signal when the divided version of the supply voltage is at least as large as the reference voltage. The control circuit includes an output node connected to transmit a power-on reset control signal. The control circuit includes pulldown circuitry connected between the comparator output and the output node. The pulldown circuitry maintains the output node at a reset voltage level as the supply voltage rises to a host operational level, based on a signal present at the comparator output. The control circuit includes pullup circuitry connected between the supply voltage and the output node. The pullup circuitry maintains the output node at a non-reset voltage level after the supply voltage has risen to the host operational level. | 2011-09-29 |
20110234269 | METHOD AND APPARATUS FOR QUANTIZATION NOISE REDUCTION IN FRACTIONAL-N PLLS - A first current source supplies a first charge amount responsive to a first pulse signal from the phase frequency detector and a second current source supplies a second charge amount according to a fixed value and a variable value. The variable value corresponds to a phase difference between a first feedback clock signal and a hypothesized feedback clock signal with reduced quantization noise. The first and second charge amounts are of opposite polarity. A single set of first and second current sources perform the functions of charge pump and noise reduction DAC. | 2011-09-29 |
20110234270 | LOCAL OSCILLATOR AND PHASE ADJUSTING METHOD FOR THE SAME - According to one embodiment, a local oscillator includes a digitally-controlled oscillator that outputs an oscillating signal having a frequency N times as large as an oscillating frequency according to an oscillator tuning word; a frequency divider that performs a 1/N frequency division of the oscillating signal, and outputs a 2N phase clock; a counter that counts the clock and outputs the count value as integer oscillator phase data based upon a reference signal; a first flip-flop that latches the clock with the reference signal, and outputs the resultant as first phase information; a variable delay circuit that delays the reference signal and outputs the resultant as a delay reference signal; a second flip-flop that latches the clock with the delay reference signal, and outputs the resultant as second phase information; a delay control unit that controls a delay amount of the variable delay circuit; a data conversion unit that outputs fractional oscillator phase data based upon the first and second phase information; an adder that adds the integer oscillator phase data and the fractional oscillator phase data, and outputs the added value as third phase information; and a filter that smoothes the difference between a reference phase for setting the oscillating frequency of the digitally-controlled oscillator and the third phase information so as to output the oscillator tuning word. | 2011-09-29 |
20110234271 | HIGH RESOLUTION CLOCK SIGNAL GENERATOR - A clock signal generator having first and second coarse delay circuits connected in series delays pulses of a reference signal having period T | 2011-09-29 |
20110234272 | METHOD AND APPARATUS FOR CHARGE PUMP LINEARIZATION IN FRACTIONAL-N PLLS - Efficient techniques improve the linearity of a charge pump in fractional-N PLLs. A feedback clock pulse several VCO clock periods wide is formed and supplied to a phase frequency detector (PFD). The down pulse generated by the PFD is fixed to eliminate the nonlinearity associated with up and down current source mismatch. The up pulse is made to fall when the down pulse falls, that is, when the feedback clock pulse falls. | 2011-09-29 |
20110234273 | METHOD AND APPARATUS FOR CHARGE LEAKAGE COMPENSATION FOR CHARGE PUMP - An apparatus is disclosed, the apparatus comprising: a charge pump for receiving a phase signal representing a result of a phase detection and for outputting a current flowing between an internal node and an output node; a capacitive load shunt at the output node; a current source controlled by a bias voltage for outputting a compensation current to the internal node; a current sensor inserted between the internal node and the output node for sensing the current; and a feedback network for adjusting the bias voltage in accordance with an output of the current sensor. | 2011-09-29 |
20110234274 | SEMICONDUCTOR DEVICE - A digital compensation phase locked loop circuit of a semiconductor device includes a phase locked loop circuit including a voltage controlled oscillator having capacitors at oscillation nodes and consecutively controlled by an applied voltage, and a digital compensation circuit which variably controls the capacitors at the oscillation nodes of the voltage controlled oscillator in accordance with an input phase difference. A gain of the conventional voltage controlled oscillator whose gain is determined by an applied voltage is discretely changed by a control signal of the digital compensation circuit. The digital compensation circuit dynamically controls the gain so as to secure the optimum phase margin by applying a load (capacitor) to the oscillation node of the voltage controlled oscillator with respect to a phase lead and decreasing the load (capacitor) with respect to a phase delay. | 2011-09-29 |
20110234275 | PLL CIRCUIT - In the PLL circuit including a phase comparator, a charge pump circuit, a loop filter, and a voltage controlled oscillator, the loop band after the locking can be expanded in such a manner that, when the phase difference between a reference clock signal and a feedback clock signal is larger than a threshold value, an output current corresponding to the phase difference is outputted by reducing the change of the output current per unit amount of the phase difference, and that, when the phase difference is at most the threshold value, the output current corresponding to the phase difference is outputted by increasing the change of the output current per unit amount of the phase difference. | 2011-09-29 |
20110234276 | VOLTAGE-CURRENT CONVERTER CIRCUIT AND PLL CIRCUIT HAVING THE SAME - According to an embodiment, a voltage-current converter circuit includes a first current mirror circuit, a first transistor, a variable resistor, a second transistor and a first current output unit. The first current mirror circuit includes a first conductivity type transistor supplied with a first voltage, and the first current mirror circuit is configured to produce a second electric current based on a first electric current. The first transistor has a second conductivity type, and the first electric current flows through the first transistor. One end of the variable resistor is connected to a source of the first transistor, the other end of the variable resistor is supplied with a second voltage, and a resistance value of the variable resistor changes depending on an input control voltage. The second transistor has the second conductivity type, and the second electric current flows through the second transistor. A drain and a gate of the second transistor are connected to the gate of the first transistor, and a source of the second transistor is supplied with the second voltage. The second transistor is configured such that a ratio W/L, a ratio of a gate width W to a gate length L, is smaller than a ratio W/L of the first transistor. The first current output unit is configured to output an output current based on the first electric current or the second electric current. | 2011-09-29 |