| 13th week of 2010 patent applcation highlights part 17 |
| Patent application number | Title | Published |
|---|
| 20100079129 | METHOD AND APPARATUS FOR POWER SUPPLY - A power supply that is capable of supplying power to an input/output channel for an Industrial Process Control System. The power supply includes a primary voltage converter having a first voltage input and a second voltage output, and overvoltage protection components that prevent the second voltage from rising above a predetermined maximum. The power supply includes a first low dropout regulator that is connected to receive the second voltage and to generate a third voltage, a second low dropout regulator that is connected to receive the second voltage and to generate a fourth voltage, and a third low dropout regulator that is connected to receive the fourth voltage and to generate a fifth voltage. The power supply provides an over-voltage fault tolerant self-testable architecture, allows for compact low cost individual channel isolation and fault tolerant EMI/RFI filtration. | 2010-04-01 |
| 20100079130 | Chemical sensor using thin-film sensing member - Provided is a chemical sensor that may include a first electrode on a substrate, a sensing member covering the first electrode on the substrate, and a plurality of second electrodes on a surface of the sensing member exposing the surface of the sensing member. The chemical sensor may be configured to measure the change in electrical characteristics when a compound to be sensed is adsorbed on the sensing member. Provided also is a chemical sensor array including an array of chemical sensors. | 2010-04-01 |
| 20100079131 | AUDIO FREQUENCY DEVICE FOR AUDIBLE EYES OFF MEASUREMENTS - An electrical to audible signal measurement apparatus comprises an absolute value converter, a voltage to frequency converter, a polarity detector, and a waveform changer. The absolute value converter is capable of converting a bipolar input signal into a unipolar signal. The voltage to frequency converter is connected to the absolute value converter and is capable of generating a frequency signal proportional to the unipolar signal. The polarity detector is capable of identifying a polarity of the bipolar input signal to form an identified polarity. The waveform changer is connected to the voltage to frequency converter and polarity detector and is capable of generating a number of different waveforms in an audio frequency range in response to receiving the frequency signal from the voltage to frequency converter and in response to the identified polarity. | 2010-04-01 |
| 20100079132 | AMPLIFIER TOPOLOGY AND METHOD FOR CONNECTING TO PRINTED CIRCUIT BOARD TRACES USED AS SHUNT RESISTORS - An integrated circuit current shunt amplifier ( | 2010-04-01 |
| 20100079133 | HEAT SINK MOUNTING STRUCTURE AND ELECTRONIC APPARATUS - According to one embodiment, a heat sink mounting structure for mounting a heat sink for radiating heat from a heat-generating part on a printed circuit board in the heat-generating part, comprises a hook, a conductive clip, a power supply and a detector. The hook is formed close to the heat-generating part. The conductive clip presses and secures the heat sink to the heat-generating part by a stress produced when hanging on the hook. The power supply applies a voltage to the clip. The detector detects detachment of the heat sink from the heat-generating part, when no current flows from the power supply to the clip through the hook. | 2010-04-01 |
| 20100079134 | POSITION DETECTION APPARATUS USING MAGNETORESISTIVE EFFECT ELEMENT - A circular surface of a magnet is magnetized to an N-pole, and a back surface is magnetized to an S-pole. A detection unit moves in an X-Y plane at a position apart from the surface of the magnet. An X-direction detection element and a Y-direction detection element are installed in the detection unit. Both the X-direction detection element and the Y-direction detection element are magnetoresistive effect elements each having the bias magnetic field in a B-direction applied to a free magnetic layer directed perpendicular to the surface of the magnet. Each bias magnetic field is stabilized both in the X-direction detection element and the Y-direction detection element such that the detection unit accurately provides position detection output values in the X- and Y-directions. | 2010-04-01 |
| 20100079135 | MAGNETIC DETECTING DEVICE AND METHOD FOR MAKING THE SAME, AND ANGLE DETECTING APPARATUS, POSITION DETECTING APPARATUS, AND MAGNETIC SWITCH EACH INCLUDING THE MAGNETIC DETECTING DEVICE - In a magnetic detecting device, conductive patterns are formed on a substrate in a surrounding region outside chips, except for a region between the chips. Inner connection pads formed on each of the chips are wire-bonded to their corresponding conductive patterns, so that the chips are electrically connected to each other. | 2010-04-01 |
| 20100079136 | Blade tip clearance measurement sensor and method for gas turbine engines - An electromagnetic field sensor assembly for blade tip clearance measurement in a gas turbine engine is disclosed that includes a ceramic sensor body, a multi-layered wire coil wound about a distal end portion of the sensor body for producing an electromagnetic field, a ceramic well enclosing the sensor body and the coil, and a metallic housing surrounding the well and having an open distal end. | 2010-04-01 |
| 20100079137 | METHOD AND APPARATUS FOR MEASUREMENT OF MAGNETIC PERMEABILITY OF A MATERIAL - A system for determining magnetic permeability of a material. Two electrical inductors formed as primary and secondary concentric coils share a common magnetic core space. A first AC voltage applied to the primary coil creates a magnetic flux in the core proportional to the magnetic permeability of the material. The magnetic flux induces an AC voltage in the secondary coil indicative of the apparent magnetic permeability of the sample. The apparent permeability is corrected for conductivity by imposing a second AC voltage and resistor in series across first and second electrodes disposed in the material. When the material is a magnetorheological fluid, the magnetic permeability is proportional to the concentration of magnetic particles in the sample and can be back-calculated from the amplitude of the secondary voltage signal. | 2010-04-01 |
| 20100079138 | MICRO-POWER MAGNETIC SWITCH - A sensor having a power management mechanism controlled by an external trigger signal is presented. The sensor includes a magnetic field signal generating circuit and a control circuit coupled to the magnetic field signal generating circuit. The control circuit, responsive to an externally generated trigger signal, initiates a supply current pulse that activates the magnetic field signal generating circuit for a predetermined time interval. | 2010-04-01 |
| 20100079139 | CIRCUIT AND APPARATUS FOR DECOUPLING RF SURFACE COILS - A decoupling circuit for a radio frequency (RF) surface coil having a plurality of tuning capacitors includes at least two decoupling points and a DC source coupled to the at least two decoupling points. Each decoupling point is associated with one of the plurality of tuning capacitors. Each decoupling point includes a decoupling inductor connected in parallel with a tuning capacitor, a diode connected in series with the decoupling inductor and in parallel with the tuning capacitor, a resistor connected in parallel with the diode and at least one isolating inductor connected between the resistor and the diode to RF isolate the resistor. The value of the resistor in each decoupling point is selected to maintain a high quality factor (Q) of the RF surface coil and to reduce the switching speed of the decoupling circuit. | 2010-04-01 |
| 20100079140 | FIBRE TRACKING ON THE BASIS OF MACROSCOPIC INFORMATION - A diffusion data processing apparatus comprising a segmenter arranged to segment the diffusion tensor data according to at least one segmentation model representing at least part of a fiber bundle. The segmentation model may comprise macroscopic and/or microscopic information. This leads to a segmentation of the fiber bundle that is robust and less influenced by non-perfections of the data set, such as low signal-to-noise ratio, partial voluming, or other imaging artifacts. | 2010-04-01 |
| 20100079141 | MAGNETIC RESONANCE SYSTEM AND METHOD FOR CORRECTION OF DISTORTION DUE TO CONTINUOUS MOVEMENT OF PATIENT TABLE - In a method and magnetic resonance (MR) for reduction and correction of image distortions that occur in the generation of MR images of an examination subject that is arranged on a table that is continuously driven through the MR system during the generation of the MR images and whose cause is the acquisition of MR data of an image at varying positions within the MR system, raw MR data are acquired in multiple segments with radial filling of k-space with the raw data, an intersection region in the k-space center is determined that is covered by multiple segments given the radial filling of the raw data in k-space, and the distortions are automatically calculated based on the intersection region of at least two different segments. | 2010-04-01 |
| 20100079142 | COMBINED MAGNETIC RESONANCE IMAGING AND TARGETING DEVICE FOR MAGNETIC PARTICLES - The invention relates to a combined magnetic resonance imaging and targeting device for magnetic particles having a magnetic coil array. The magnetic coil array comprises a plurality of coils, each of which is connected to a power supply. The power supplies are connected to a controller which is embodied for two operating modes. In a first operating mode the power supplies are controlled in such a way that a magnetic field extreme value is generated at at least one location in a target region. In a second operating mode the power supplies are controlled in such a way that magnetic fields having a strictly monotonously rising or falling magnetic field profile are generated in an imaging region. | 2010-04-01 |
| 20100079143 | DEMOUNTABLE CRYOGENIC NMR CONNECTION ASSEMBLY SYSTEMS AND METHODS - In some embodiments, a NMR spectrometer includes a NMR probe circuit component (e.g. RF coil insert, capacitor, inductor) in thermal and electrical contact with a cryogenically-cooled NMR probe support through a collet assembly. The collet assembly includes a collet assembly body connected to the probe support, a collet inserted into the collet assembly body, a pin connected to the probe circuit component, and a nut threaded over a back of the collet to secure the pin to the collet. The collet assembly body is connected to the probe circuit component and the pin is connected to the probe support. A heat exchanger may be in thermal contact with the probe support. The collet assembly provides a demountable, compact, reliable, low-resistance, and strong thermal and electrical connection particularly suited for use in NMR probes, which are commonly subject to stringent spatial and other NMR-compatibility design constraints. | 2010-04-01 |
| 20100079144 | MAGNETS FOR USE IN MAGNETIC RESONANCE IMAGING - A magnetic resonance system uses a shielded superconducting magnet to produce a dsv useful for specialist imaging in an overall short magnet system at field strengths 1.5 Tesla and above. The magnet includes at least a first central coil C | 2010-04-01 |
| 20100079145 | SYSTEM AND METHOD TO DETERMINE THE STATE OF CHARGE OF A BATTERY USING MAGNETOSTRICTION TO DETECT MAGNETIC RESPONSE OF BATTERY MATERIAL - One exemplary embodiment includes a method including providing a battery, producing a first magnetic field so that a second magnetic field is induced in the battery, sensing a magnetic field resulting from the interaction of the first magnetic field and the second magnetic field, utilizing the sensed net magnetic field to determine the state of charge of the battery. | 2010-04-01 |
| 20100079146 | BATTERY INFORMATION ACQUIRING APPARATUS - There is an apparatus includes a voltage acquiring unit which acquires an inter-terminal voltage of the battery cell; a battery information acquiring circuit which acquires battery information of the battery cell with the acquired voltage being supplied as a power supply voltage and; a transformer configured to have a primary winding and a secondary winding, the primary winding being connected to a common wire; a communication circuit which transmits a signal of the battery information to a management unit, supplied with the acquired voltage as a power supply voltage; a rectification circuit which rectifies a signal of a predetermined frequency from the management unit to generate a DC voltage; and a control circuit which controls the supply of the power supply voltages to the battery information acquiring circuit and the communication circuit, the control circuit being supplied with the DC voltage as a power supply voltage. | 2010-04-01 |
| 20100079147 | INLINE INSPECTION OF PHOTOVOLTAICS FOR ELECTRICAL DEFECTS - A method of inline inspection of photovoltaic material for electrical anomalies. A first electrical connection is formed to a first surface of the photovoltaic material, and a second electrical connection is formed to an opposing second surface of the photovoltaic material. A localized current is induced in the photovoltaic material and properties of the localized current in the photovoltaic material are sensed using the first and second electrical connections. The properties of the sensed localized current are analyzed to detect the electrical anomalies in the photovoltaic material. | 2010-04-01 |
| 20100079148 | UHF PARTIAL DISCHARGE AND ITS LOCATION MEASURING DEVICE FOR HIGH-VOLTAGE POWER DEVICES - Disclosed is a UHF partial discharge and its location measuring device for high-voltage power devices. The measuring device includes a partial discharge sensor, an external noise sensor, an analogue-digital converter, a peak detector, a partial discharge signal processor, an arrival time detector, a discharge location processor, and a display unit. | 2010-04-01 |
| 20100079149 | CIRCUIT TESTING APPARATUS AND SYSTEM - A circuit testing apparatus testing interconnectivity between two integrated circuits including: a data writing unit writing test pattern data for causing the outputting one of the two integrated circuits to perform a predetermined operation into a data buffer of the inputting integrated circuit; and a test control signal generating unit generating a test control signal for causing the inputting integrated circuit to read the test pattern data from the data buffer and provide the test pattern data to the outputting integrated circuit. | 2010-04-01 |
| 20100079150 | APPARATUS FOR THE DYNAMIC DETECTION, SELECTION AND DESELECTION OF LEAKING DECOUPLING CAPACITORS - Embodiments of the invention generally provide methods, systems, and apparatus for testing decoupling capacitors of an integrated circuit. A decoupling capacitor may be disconnected from the power grid of the integrated circuit during testing. The voltage of the decoupling capacitor may be compared to the voltage of a reference capacitor to determine whether the decoupling capacitor is defective. If the decoupling capacitor is determined to be defective, the decoupling capacitor is not reconnected to the power grid, thereby reducing the leakage currents in the integrated circuit. | 2010-04-01 |
| 20100079151 | AUTOMATIC TEST EQUIPMENT SELF TEST - A self test adapter (STA) for automatic test equipment (ATE) is provided. The STA includes an enclosure. A backplane is housed by the enclosure. A dual data bus is integrated into the backplane. At least one STA card module is inserted into the backplane. The at least one STA card module has a port for interconnection with an ATE station receiver. The at least one STA card module includes a generic region adapted for interfacing with an additional STA card module over the dual data bus, and a resource specific region adapted for self test of at least one ATE station resource. | 2010-04-01 |
| 20100079152 | Methods for Measuring Dielectric Properties of Parts - A method is disclosed for calibrating a capacitance of an apparatus for measuring dielectric properties of a part. The apparatus includes an electrically grounded chamber, a lower electrode disposed within the chamber and connected to a radiofrequency (RF) transmission rod, an electrically grounded upper electrode disposed within the chamber above the lower electrode, and a variable capacitor connected to control transmission of RF power through the RF transmission rod to the lower electrode. A method is also disclosed for determining a capacitance of a part through use of the apparatus. A method is also disclosed for determining a dielectric constant of a part through use of the apparatus. A method is also disclosed for determining a loss tangent of a part through use of the apparatus. | 2010-04-01 |
| 20100079153 | Touch Sensor System and Method - A touch sensor assembly may include a cover, an electrode film assembly, an adhesive layer, a printed circuit board (PCB) electrically connected to the electrode film and a back plate configured to be coupled to the cover with the PCB and the electrode film assembly disposed between the housing and the back plate. The electrode film assembly may include an electrode film formed from a conductive ink and may comprise a plurality of contacts corresponding to a plurality of touch areas. The electrode film assembly may optionally comprise capacitive circuitry configured to exhibit a capacitance response to contact with the touch areas. The adhesive layer may be configured to secure the electrode film assembly to the cover. The PCB may be substantially planar and the cover may include an inner surface having a curvature. The electrode film may be configured to substantially conform to the curvature when secured thereto. | 2010-04-01 |
| 20100079154 | CAPACITIVE ANGLE ENCODER AND WITHDRAWABLE FEEDER FOR CIRCUIT BOARD COMPONENT INSERTION MACHINES - The invention relates to a capacitive angle encoder for detecting a rotational position of a rotatable object relative to a stationary object as well as a withdrawable feeder for circuit board component insertion machines, said withdrawable feeder being equipped with an angle encoder according to the invention. The angle encoder comprises a stator that supports first and second transmitting electrodes and first and second receiving electrodes, and a rotor which supports an incremental coupling electrode and an absolute value-coupling electrode. The incremental coupling electrode is designed such that the first electrostatic field is modulated by a change in capacitance in response to a change in the rotational position of the rotor, while the absolute value-coupling electrode is designed such that the second electrostatic field is modulated by a change in capacitance in response to an absolute rotational position of the rotor. A signal processing circuit detects the first and second modulated electrostatic field and determines a measured value for the position in response to the detected field. The at least one first and second transmitting electrode and the at least one first and second receiving electrode are coplanar to one another. | 2010-04-01 |
| 20100079155 | PRESSURE DETECTION APPARATUS - A pressure detection apparatus has a pressure-sensitive resistor whose first resistance varies according to pressure and a change of its own temperature, a temperature-sensitive resistor which has a same resistance-temperature coefficient as the pressure-sensitive resistor and whose second resistance varies according to the change of the temperature, a current source supplying first and second constant-currents to the pressure-sensitive and temperature-sensitive resistors respectively, and a pressure signal generation output section. The current source adjusts the first and second constant-currents so that when the pressure is an initial pressure, a reference first voltage appearing across the pressure-sensitive resistor and a reference second voltage appearing across the temperature-sensitive resistor become equal to each other. The pressure signal generation output section outputs a first voltage signal corresponding to the pressure on the basis of a difference voltage between a first voltage of the pressure-sensitive resistor and a second voltage of the temperature-sensitive resistor. | 2010-04-01 |
| 20100079156 | Method and means for connecting a large number of electrodes to a measuring device - An improved electrode for measurement of neuron electrical activity where the number of measurement points is much larger than offered by existing devices. We disclose a method to select a subset of available measuring electrodes, herein called pads, on the surface of the device of our invention, herein called picafina. Besides selecting a particular subset of electrodes, or pads, to use in a particular case, our invention teaches methods and means to keep the selection for a predetermined length of time, or for an indefinite length of time, both under control of the researcher or the neurosurgeon. Selecting a different measuring pad, or a combination of pads, is equivalent of making measurement at a different location, or on a nearby neuron. The invention also discloses method and means to make several parallel measurements, in which case correlations can be made between the firing of different neurons. | 2010-04-01 |
| 20100079157 | Eddy Current System and Method for Crack Detection - An eddy current system and method enables detection of sub-surface damage in a cylindrical object. The invention incorporates a dual frequency, orthogonally wound eddy current probe mounted on a stepper motor-controlled scanning system. The system is designed to inspect for outer surface damage from the interior of the cylindrical object. | 2010-04-01 |
| 20100079158 | CURRENT LOCALIZATION TRACKER - A method includes positioning body-electrodes in galvanic contact with a body of a patient and positioning a mapping-tool, having a mapping-electrode, in a plurality of regions in the body. The method further includes tracking the mapping-tool at different positions in each of the regions using a location-measuring system, and for each region, generating a respective set of calibration-currents between the body-electrodes and the mapping-electrode at the different positions in the region. A respective relation is derived for each region between the respective set of the calibration-currents and the different positions, and is used in determining the location of an investigation-tool in response to the different respective relations and investigation-tool-currents. | 2010-04-01 |
| 20100079159 | METHOD AND APPARATUS FOR PROVIDING A TESTER INTEGRATED CIRCUIT FOR TESTING A SEMICONDUCTOR DEVICE UNDER TEST - Methods and apparatus for providing a tester integrated circuit (IC) for testing a semiconductor device under test (DUT) are described. Examples of the invention can relate to an apparatus for testing a semiconductor device under test (DUT). In some examples, the apparatus can include an integrated circuit (IC) coupled to test probes configured to contact pads on the DUT, the IC including a plurality of dedicated test circuits coupled to programmable logic, the programmable logic responsive to programming data to form a tester for testing the DUT from at least one of the dedicated test circuits. | 2010-04-01 |
| 20100079160 | Probe Interface for electrostatic discharge testing of an integrated circuit - A system, probe interface, and method to test an integrated circuit with an electrostatic discharge signal. The probe interface includes a pulse generation circuit, ground plane, and a relay matrix, while the integrated circuit includes a plurality of contact points. The probe interface is configured proximate to the integrated circuit and the relay matrix is configured to electrically connect at least one of an operative signal, the pulse generation circuit, or the ground plane to a contact point of the integrated circuit. The probe interface is thus configured to provide a shortened path for at least one of the electrostatic discharge signal from the probe interface to the integrated circuit, or to the ground plane from the integrated circuit. The probe interface may selectively electrically connect to up to about thirty-two contact points of the integrated circuit, while the system may include up to about four probe interfaces. | 2010-04-01 |
| 20100079161 | PROBE APPARATUS - A probe apparatus includes a holding frame holding a test head through a biasing unit biasing the test head. An annular member is rotatably mounted in an opening of a ceiling plate of a main body. Cam followers are rotatably provided circumferentially on the annular member. An intermediate connecting member is provided in a lower surface of the test head, for bringing the test head into electrical contact with an upper surface of the probe card. Protrusions for guiding the cam followers are provided corresponding thereto at an outer periphery of the intermediate connecting member, upper surfaces of the protrusions being inclined. The cam followers are moved relatively upward along the respective inclined surfaces of the protrusions by rotating the annular member so that the intermediate connecting member is pushed downward against a biasing force of the biasing unit to bring the test head into press-contact with the probe card. | 2010-04-01 |
| 20100079162 | DATA PROCESSING DEVICE AND METHODS THEREOF - A data processing device includes a first memory for use during normal operation of the device and a second memory for use during testing. The second memory stores a set of test patterns for testing of a functional module. When the data processing device is in a normal (i.e. non-test) mode of operation, data is retrieved from a first memory based on a received memory address. The retrieved data is applied to the functional module of the data processing device to perform a designated function. When the data processing device is in a test mode of operation, received memory addresses are provided to the second memory for retrieval of a test pattern associated with the address. The test pattern is applied to the functional module to generate an output pattern. The result of a test is determined by comparing the output pattern to an expected pattern. | 2010-04-01 |
| 20100079163 | MEASUREMENT EQUIPMENT, TEST SYSTEM, AND MEASUREMENT METHOD - A measurement apparatus that detects a defect in a device based on the quiescent current (IDDQ) of a CMOS LSI or the like detects the defect by measuring the value of IDDQ that flows when a logic vector is applied. However, the miniaturization of CMOS LSIs has caused an increase in the leak current flowing through a normal CMOS circuit. This makes it difficult to distinguish between the power supply current flowing in a defective CMOS circuit and the leak current flowing through a normal CMOS circuit. By applying the logic vector after suppressing the fluctuation of the leak current by controlling the power supply voltage applied to the device under measurement and the voltage applied to the substrate of the device under measurement, the measurement apparatus of the present invention can measure the power supply current flowing through a defective CMOS circuit to detect the defect in the CMOS circuit. | 2010-04-01 |
| 20100079164 | Systems and Methods for Improving the PN Ratio of a Logic Gate by Adding a Non-Switching Transistor - Systems and methods for improving a PN ratio of a logic gate by adding a non-switching transistor. In one embodiment, the logic gate includes a plurality of PMOS switching transistors and a plurality of NMOS switching transistors that are switched on and off by received input signals. The PMOS and NMOS switching transistors are interconnected to perform a logic operation on the input signals and produce a corresponding output signal. The non-switching transistor is inserted in the circuit to improve the ratio of PMOS and NMOS transistors between the power nodes of the logic gate. The non-switching transistor is either a PMOS transistor or an NMOS transistor as needed to make the PN ratio closer to 1. The non-switching transistor is biased to keep it switched on and does not affect the logic functions of the gate. | 2010-04-01 |
| 20100079165 | NONVOLATILE NANOTUBE PROGRAMMABLE LOGIC DEVICES AND A NONVOLATILE NANOTUBE FIELD PROGRAMMABLE GATE ARRAY USING SAME - Field programmable device (FPD) chips with large logic capacity and field programmability that are in-circuit programmable are described. FPDs use small versatile nonvolatile nanotube switches that enable efficient architectures for dense low power and high performance chip implementations and are compatible with low cost CMOS technologies and simple to integrate. | 2010-04-01 |
| 20100079166 | Programmable Signal Routing Systems Having Low Static Leakage - Parasitic static leakage current through input terminals of bus-accessing multiplexers is minimized by automatically forcing as many as practical of the bus lines into a high impedance state where all drivers of the lines are in a high impedance output state. Thus parasitic current sinking or current sourcing leakage paths through the bus-accessing multiplexers are cut off. The method is of particular utility in a low power FPGA that desirable has low static current leakage when in a static state. | 2010-04-01 |
| 20100079167 | DIFFERENTIAL VOLTAGE MODE DRIVER AND DIGITAL IMPEDANCE CALIBERATION OF SAME - A differential voltage mode driver and digital impedance calibration of same is provided. In one embodiment, the invention relates to a method of calibrating a differential driver circuit having a plurality of parallel driver stages, the differential driver circuit for driving a differential signal over a transmission line having an impedance, the method including determining an indication of an impedance of a plurality of parallel replica stages, wherein the plurality of parallel replica stages are replicas of the plurality of parallel driver stages, determining a number of the plurality of parallel replica stages to approximately match the measured impedance with the transmission line impedance, and activating a number of the plurality of parallel driver stages equal to the number of the plurality of parallel replica stages. In another embodiment, the invention relates to a differential voltage mode driver using at least one H-bridge driver stage. | 2010-04-01 |
| 20100079168 | SEMICONDUCTOR INTEGRATED CIRCUIT AND LAYOUT METHOD - A semiconductor integrated circuit has a scan chain with a scan clock signal line for clocking scan flip-flops and a scan test signal line for transferring scanning data into and out of the scan flip-flops. Part of the scan test signal line is routed adjacently parallel to the scan clock signal line to shield the scan clock signal line from electrical noise during normal operation, when the scan test signal line is held at a fixed potential. Separate shield lines are used to shield parts of the scan clock signal line not shielded by the scan test signal line. Use of a combination of shield lines and the scan test signal line to shield the scan clock signal line saves space and conserves routing resources. | 2010-04-01 |
| 20100079169 | Inverter, method of operating the same and logic circuit comprising inverter - Provided are an inverter, a method of operating the inverter, and a logic circuit including the inverter. The inverter may include a load transistor and a driving transistor, and at least one of the load transistor and the driving transistor may have a double gate structure. A threshold voltage of the load transistor or the driving transistor may be adjusted by the double gate structure, and accordingly, the inverter may be an enhancement/depletion (E/D) mode inverter. | 2010-04-01 |
| 20100079170 | APPARATUS AND METHOD FOR THE ANALYSIS OF A PERIODIC SIGNAL - An apparatus and method for the analysis of a periodic signal. One embodiment provides signal values. Signs are assigned to the signal values. The signed signal values are summed to a first sum. At least one signal property is determined on the basis of the first sum. | 2010-04-01 |
| 20100079171 | QUALITY OF PHASE LOCK AND LOSS OF LOCK DETECTOR - A systems and methods for providing phase lock conditions detection, such as a quality of phase lock and loss of lock detection, are described herein. One exemplary method comprises detecting an output frequency, comparing the output frequency with a first reference signal, providing a first signal and a second signal as a function of the output frequency and first reference signal comparison, receiving a predetermined threshold from a second reference signal, monitoring a deviation of the first and second signals from the predetermined threshold, generating a third signal as a function of the deviation, comparing the third signal to a window threshold wherein the window threshold is set based on a predetermined loop variable, generating a fourth signal a function of the third signal and the window threshold comparison, and providing an alarm based on the fourth signal. | 2010-04-01 |
| 20100079172 | DIFFERENTIAL OUTPUT CIRCUIT - A differential output circuit including a first output driving circuit that includes a first PMOS transistor and a first NMOS transistor connected in series to each other, a second output driving circuit that includes a second PMOS transistor and a second NMOS transistor connected in series to each other and a control circuit, wherein, when a control signal has a first value, the control circuit selectively turns on one of the first and second PMOS transistors and selectively turns on one of the first and second NMOS transistors, thereby controlling the first and second output driving circuits to output a first pair of differential signals, and when the control signal has a second value, the control circuit supplies no current to the PMOS transistors and selectively turns on one of the NMOS transistors, thereby controlling the output driving circuits to output a second pair of differential signals. | 2010-04-01 |
| 20100079173 | Synthesized Local Oscillator And Method Of Operation Thereof - A method for controlling a synthesized local oscillator (SLO) includes: receiving a control input specifying a desired SLO output; receiving reference clock signal; generating a predefined set of dynamic clock signals from the reference clock signal; selecting a dynamic clock signal from the predefined set of dynamic clock signals in response to the control input; using the dynamic clock signal as an input to a direct digital synthesizer (DDS) module to generate a DDS output signal; selecting a DDS output band in response to the control input, the DDS output band including one of a baseband and an alias band; and processing the DDS output band to generate the SLO output. | 2010-04-01 |
| 20100079174 | FREQUENCY SYNTHESIZER AND METHOD FOR SYNTHESIZING FREQUENCY - A frequency synthesizer includes a multi-signal comparing phase frequency detector/converter, a loop filter, a controllable oscillator, and a frequency divider. The multi-signal comparing phase frequency detector/converter simultaneously receives N input reference frequency signals and N feedback reference frequency signals. Frequencies of the input reference frequency signals are equivalent to one another while phases thereof are different from one another. Frequencies of the feedback reference frequency signals are equivalent to one another while phases thereof are different from one another. The multi-signal comparing phase frequency detector/converter compares the input reference frequency signals and corresponding feedback reference frequency signals, and then outputs a comparison control signal according to the comparison result. The frequency synthesizer of the present invention is adapted to depress a reference spur, thus achieving an ideal output frequency signal. | 2010-04-01 |
| 20100079175 | PHASE DOUBLER - A phase doubler driver circuit includes a first input for receiving a input PWM drive signal. First control logic generates a first output PWM drive signal and a second output PWM drive signal responsive to the input PWM drive signal. In a first mode of operation, alternating pulses of the input PWM drive are output as the first output PWM drive signal and the second PWM output drive signal respectively. In a second mode of operation, the input PWM drive signal is provided as the first output PWM drive signal when a second phase current associated with the second output PWM drive signal exceeds a first phase current associated with the first output PWM drive signal and the input PWM drive signal is provided as the second output PWM drive signal when the phase current associated with the first output PWM signal exceed the phase current associated with the second output PWM signal. Second control logic adds an offset to a falling edge of the first output PWM drive signal responsive to a difference between a first current associated with the first phase current and an average current and for adding the offset to a falling edge of the second output PWM signal responsive to a difference between a second current associated with the second phase current and the average current, wherein the average current comprises the average of the first current and the second current. Drive circuitry generates drive signals responsive to each of the first output PWM drive signal and the second output PWM drive signal. | 2010-04-01 |
| 20100079176 | Inverter Driver And Load Driver Including The Same, And Driving Method Thereof - A load driver includes an inverter and an inverter driver. The inverter converts an input voltage into a driving voltage of a discharge lamp using at least one first switch for switching according to a duty ratio, and the inverter driver controls the inverter. The inverter driver controls the duty ratio using a voltage of a capacitor and a control signal having a waveform that is repeated with a predetermined frequency. The capacitor is charged and discharged by a current corresponding to a difference between a feedback voltage corresponding to a current flow to the discharge lamp and a reference voltage. Such inverter driver controls to gradually increase the output voltage of the inverter in the soft start period by setting the voltage of the capacitor as a voltage corresponding to the control signal. | 2010-04-01 |
| 20100079177 | SEMICONDUCTOR DEVICE - A light emitting device capable of performing signal electric current write-in operations at high speed and without dispersion in the characteristics of TFTs structuring pixels influencing the brightness of light emitting elements is provided. The gate length L of a transistor in which an electric current flows during write-in of a signal electric current is made shorter than the gate length L of a transistor in which electric current supplied to EL elements flows during light emission, and high speed write-in is thus performed by having a larger electric current flow than the electric current flowing in conventional EL elements. A converter and driver transistor ( | 2010-04-01 |
| 20100079178 | IMAGE SENSOR AND METHOD OF DRIVING TRANSFER TRANSISTOR OF IMAGE SENSOR - Provided is a 4-transistor CMOS image in which a driving condition or a pixel structure is changed so that a transfer transistor in a pixel operates in a pinch-off condition during reset and transfer operations in order to reduce dark current and fixed-pattern noise caused by a change in an operation condition of the transfer transistor and inter-pixel characteristic discrepancy. The image sensor includes a photosensitive pixel including a transfer transistor for transferring photon-induced charges created in a photodiode; and a voltage control unit for controlling a turn-on voltage applied to a gate of the transfer transistor to be lower than a floating diffusion node voltage plus the threshold voltage of the transfer transistor during a partial or entire section of a turn-on section of the transfer transistor such that the transfer transistor operates in a pseudo pinch-off mode. | 2010-04-01 |
| 20100079179 | Semiconductor Device - It is an object of the present invention to provide a semiconductor device that has a simple circuit structure, a small scale, and low power consumption, and can generate a desired clock signal. The semiconductor device has a clock generation circuit which generates a clock signal by dividing a modulated carrier wave, a divider circuit which generates a first divided signal by dividing a carrier wave, and a correction circuit which generates a second divided signal by further dividing the first divided signal, and has a function of performing correction for inverting the second divided signal in a period corresponding to a half period of the clock signal during modulation of the carrier wave and selecting whether the correction is performed or not. | 2010-04-01 |
| 20100079180 | AC-COUPLING PHASE INTERPOLATOR AND DELAY-LOCKED LOOP USING THE SAME - An AC-coupling phase interpolator and a DLL using the same are provided. The AC-coupling phase interpolator includes a coupling capacitor generating and outputting a coupling signal by AC-coupling to an interpolation signal obtained by phase-interpolating an input signal. Thereby, it is possible to correct duty of an input signal and adjust the level of an output signal. | 2010-04-01 |
| 20100079181 | SAMPLE-POINT ADJUSTMENT IN A SWITCHING CONVERTER - An apparatus and method of generating a drive signal for a switch in a switching converter having input terminals for applying an input voltage, output terminals for providing an output signal, and at least one inductive storage element coupled to the switch. The method includes sampling the output signal to provide a sampled output signal, and generating a pulsewidth modulated drive signal having a duty cycle that is dependent on the sampled output signal, wherein the output voltage is sampled at sampling times that are dependent on the duty cycle. | 2010-04-01 |
| 20100079182 | METHOD AND APPARATUS FOR COUNTER-BASED CLOCK SIGNAL ADAPTATION - A method and apparatus to implement clock signal adaptation is provided to characterize an input clock signal that is to be adapted and in response, generate adaptation updates at each subsequent clock cycle of the input clock signal. In a first embodiment, clock signal adaptation occurs through duty cycle correction (DCC) to substantially achieve a 50% duty cycle. In an alternate embodiment, clock signal adaptation occurs through a multiplication operation that is applied to the clock signal to be adapted, whereby the multiplication operation is parameterizable to allow odd/even multiplication. In an alternate embodiment, clock signal adaptation occurs through a phase-shift operation that is applied to the clock signal to be adapted, whereby the phase-shift operation is parameterizable to allow all possible fractions and percentages of phase shifts. | 2010-04-01 |
| 20100079183 | Low voltage, high speed data latch - Tri-stating transistors which are controlled by the latch enable lines isolate holding transistors from the latch node during setting of the latch. The tri-stating transistors are connected to the holding transistors and the latch node which allows the node to float and assume a third state during setting of the latch when the latch is enabled. | 2010-04-01 |
| 20100079184 | Sequential circuit with error detection - Sequential circuits with error-detection are provided. They may, for example, be used to replace traditional master-slave flip-flops, e.g., in critical path circuits to detect and initiate correction of late transitions at the input of the sequential. In some embodiments, such sequentials may comprise a transition detector with a time borrowing latch. | 2010-04-01 |
| 20100079185 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - A method of processing a signal is disclosed. The present invention includes receiving (a) downmix signal being generated from plural-channel signal and (b) spatial information indicating attribute of the plural-channel signal in order to upmix the downmix signal and including phase shift flag indicating whether phase of a frame of at least one channel of the plural-channel signal is shifted; obtaining inter-channel phase difference (IPD) coding flag indicating whether IPD value is used to the spatial information from a header of the spatial information; obtaining IPD mode flag indicating whether the IPD value is used to frame of the spatial information from the frame based on the IPD coding flag; obtaining the IPD value of parameter band in the frame, based on the IPD mode flag; upmixing plural-channel signal by applying the IPD value to the downmix signal; and shifting the phase of the frame of the at least one channel of the plural-channel signal based on the phase shift flag. | 2010-04-01 |
| 20100079186 | Adaptive Drive Signal Adjustment for Bridge EMI Control - An embodiment of the invention relates to a driver adapted to provide a drive signal with an adjustable waveform for an external bridge to control EMI. The driver includes a detector configured to measure a switching characteristic of a switch in the external bridge to produce the drive signal with an adjustable waveform characteristic. The driver includes an adjustable circuit element to adjust the waveform characteristic in response to the measured switching characteristic. The measured switching characteristic may be a derivative of a voltage of the switch in the bridge such as a derivative of a drain-to-source voltage of a half-bridge circuit. The driver may be formed with an amplifier with an adjustable gain controlled by the signal produced by the detector. The adjustable gain amplifier may be formed with a transistor coupled in series with a leg of a current mirror. | 2010-04-01 |
| 20100079187 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - A method of processing a signal is disclosed. The present invention includes receiving a downmix signal generated from plural channel signal and spatial information indicating attribute of the plural channel signal to upmix the downmix signal; obtaining inter-channel phase difference (IPD) coding flag indicating whether IPD value is used to the spatial information from header of the spatial information; obtaining IPD mode flag based on the IPD coding flag from the frame of the spatial information, the IPD mode flag indicating whether the IPD value is used to a frame of the spatial information; obtaining the IPD value of parameter band of parameter time slot in the frame, based on the IPD mode flag; smoothing the IPD value by modifying the IPD value by using IPD value of previous parameter time slot; and generating plural channel signal by applying the smoothed IPD value to the downmix signal. | 2010-04-01 |
| 20100079188 | SYSTEMS AND METHODS FOR PROVIDING PROGRAMMABLE ANALOG CLASSIFIERS - The present invention describes systems and methods to provide programmable analog classifiers. An exemplary embodiment of the present invention provides an analog classifier circuit comprising a bump circuit enabled to store a template vector, wherein the template vector can model a probability distribution with exponential behavior. Furthermore, the bump circuit is enabled to generate an output corresponding to a comparison between an input vector received by the bump circuit and the template vector stored by the bump circuit. Additionally, the analog classifier circuit includes a variable gain amplifier in communication with the bump circuit, and the variable gain amplifier can be adjusted to modify the variance of the template vector. | 2010-04-01 |
| 20100079189 | MINIATURIZED DUAL-BALANCED MIXER CIRCUIT BASED ON A DOUBLE SPIRAL LAYOUT ARCHITECTURE - A miniaturized dual-balanced mixer circuit based on a double spiral layout architecture is proposed, which is designed for use to provide a frequency mixing function for millimeter wave (MMW) signals, and which features a downsized circuit layout architecture that allows IC implementation to be more miniaturized than the conventional star-type dual-balanced mixer (DBM). The proposed miniaturized dual-balanced mixer circuit is distinguished from the conventional star-type DBM particularly in the use of a double spiral layout architecture for the layout of two balun circuit units. This feature allows the required layout area to be only about 15% of that of the conventional star-type DBM. | 2010-04-01 |
| 20100079190 | Power Transistor and Method for Controlling a Power Transistor - Embodiments of the invention are related to a power transistor and a method for controlling a power transistor. In one embodiment a power transistor comprises a power semiconductor body with a plurality of power transistor cells each having a control electrode and a current path. The power transistor furthermore comprises a temperature sensor formed by at least one transistor cell in the power semiconductor body whose control electrode is coupled to one electrode of the current path forming a reversed biased pn-junction. | 2010-04-01 |
| 20100079191 | CIRCUIT FOR ACTUATION OF A TRANSISTOR - A circuit for actuation of a transistor. One embodiment provides an actuation output for connection to the actuation connection of the transistor. A measurement arrangement is provided for ascertaining a load current flowing through the load path or a voltage across the load path and for providing a measurement signal. An actuation current source having an actuation current output is connected to the actuation output and supplied with the measurement signal and designed to produce an actuation current at the actuation current output. The actuation current is at a current level dependent on the measurement signal. | 2010-04-01 |
| 20100079192 | Drive for a half-bridge circuit - A method for driving a half-bridge is described. | 2010-04-01 |
| 20100079193 | SEMICONDUCTOR SWITCH AND METHOD FOR OPERATING A SEMICONDUCTOR SWITCH - A semiconductor switch, is provided that comprises a semiconductor element having a control terminal and two load terminals forming switching contacts of the semiconductor switch, a temperature measuring device for measuring the temperatures of the semiconductor element at two measurement locations spaced apart from one another, and also a control circuit connected between the temperature measuring device and the control terminal of the semiconductor element and having a control input forming the control contact of the semiconductor element, wherein provision is made for: measuring the temperatures of the semiconductor element at two measurement locations spaced apart from one another; providing a signal representing the difference between the two temperatures; driving a driving current of specific intensity into the control terminal of the semiconductor element if a corresponding signal is present at the control input in order to control the semiconductor element in the conducting state between its load terminals; increasing the intensity of the driving current if the semiconductor element is controlled in the conducting state and the temperature difference exceeds a first limit value. | 2010-04-01 |
| 20100079194 | GATE DRIVE METHOD FOR H BRIDGE CIRCUIT - An H bridge circuit includes a gate driver circuit coupled to a gate of an NMOS device. The output of the gate driver circuit is at a voltage from 0.1V to 0.4V during a dead time of the H bridge circuit. The gate voltage of the NMOS device is biased at 0.1˜0.4V to overcome the problems of minority carrier injection and power dissipation as compared with V | 2010-04-01 |
| 20100079195 | PROTECTED POWER SWITCH WITH LOW CURRENT CONSUMPTION - Under-voltage, over-voltage, and temperature detectors disposed in a switching circuit are turned on periodically and in response to an oscillating signal having a low duty cycle. Accordingly, because the voltage and temperature detectors remain off for long durations, their operating currents, and thus the operating current of the switching circuit is substantially reduced. The switching circuit has a current limiting function which is disabled when the switch current is below a threshold value, thereby further decreasing the current consumption of the switching circuit at low switch current levels. | 2010-04-01 |
| 20100079196 | SYSTEM AND METHOD FOR IMPROVING THE EFFICIENCY AND RELIABILITY OF A BROADBAND TRANSISTOR SWITCH FOR PERIODIC SWITCHING APPLICATIONS - A driver circuit is provided for enabling a transistor collector-emitter path to be used as a broadband periodic switch. The broadband driver circuit controls the magnitude of the transistor base-emitter current in order to enable a CLOSED switch state and to simultaneously control the magnitude of the transistor base-emitter reverse-bias voltage in order to enable the OPEN-switch state. The precise control of these parameters minimizes base-charge storage and prevents reverse-breakdown failure. | 2010-04-01 |
| 20100079197 | Method for Operating a Power Semiconductor Circuit and Power Semiconductor Circuit - In a method for operating a power semiconductor circuit a power semiconductor chip is provided which includes a power semiconductor switch with a first load terminal and with a second load terminal. Further, a first temperature sensor which is thermally coupled to the power semiconductor switch and a second temperature sensor are provided. The power semiconductor switch is switched OFF or kept switched OFF if the temperature difference between a first temperature of the first temperature sensor and a second temperature of the second temperature sensor is greater than or equal to a switching-OFF threshold temperature difference which depends, following an inconstant first function, on the voltage drop across the power semiconductor switch between the first load terminal and the second load terminal. | 2010-04-01 |
| 20100079198 | Constant Current Circuit - A constant-current circuit comprising: a temperature-compensation circuit to output a temperature-compensated first current; and a current-supply circuit to supply a second current to the temperature-compensation circuit, the temperature-compensation circuit including a voltage-multiplication circuit including a first transistor to generate a base-collector voltage obtained by multiplying a base-emitter voltage by a predetermined ratio, a second transistor identical in conductivity type and substantially equal in base-emitter voltage to the first transistor, a first resistor having two ends connected to a first-transistor collector and second-transistor base, respectively, and a second resistor having two ends connected to first and second-transistor emitters, respectively, the first current being output according to a second-transistor collector current, the second current being supplied to a connection point between a second-transistor base and the first resistor, to generate between both ends of the first resistor a voltage varying substantially in proportion to temperature. | 2010-04-01 |
| 20100079199 | Internal voltage control device capable of reducing current consumption and semiconductor memory device using the same - An internal voltage control apparatus capable of reducing current consumption and a semiconductor memory device using the same includes an enable signal generating unit for generating an enable signal in response to an active signal and an internal voltage driving unit driven by the active signal and the enable signal, wherein the internal voltage driving unit drives an internal voltage by comparing the internal voltage and a reference voltage and then generating first and second driving signals, and wherein the enable signal generating unit receives the second driving signal and then determines enablement of the enable signal. | 2010-04-01 |
| 20100079200 | PROCESS/DESIGN METHODOLOGY TO ENABLE HIGH PERFORMANCE LOGIC AND ANALOG CIRCUITS USING A SINGLE PROCESS - A method for improving analog circuits performance using a circuit design using forward bias and a modified mixed-signal process is presented. A circuit consisting plurality of NMOS and PMOS transistors is defined. The body terminal of the NMOS transistors are coupled to a first voltage source and the body terminal of the PMOS transistors are coupled a second voltage source. Transistors in the circuit are selectively biased by applying the first voltage source to the body terminal of each selected NMOS transistor and applying the second voltage source to the body terminal of each selected PMOS transistor. In one embodiment, the first voltage source and the second voltage source are modifiable to provide forward and reverse bias to the body terminal of the transistors. | 2010-04-01 |
| 20100079201 | Automated sleep sequence - An analog baseband, a computer readable medium, and a method for powering on and off a set of regulators in the analog baseband, where each regulator is configured to provide a predefined voltage. The method includes storing in a register of the analog baseband at least n bits, where n is an integer larger than 2, assigning in the analog baseband, to each regulator, a number of m bits of the n bits, where m times a number of the regulators is smaller than or equal to n, programming in the analog baseband the at least n bits in a sequence of m bits that describes a time when each regulator is powered on or off and an order in which each regulator is powered on or off upon reception of a sleep signal, receiving in the analog baseband the sleep signal that indicates whether the set of regulators are powered on or off, and instructing, based on sequence of m bits stored in the registers of the analog baseband, the set of regulators to power on or off based on the received sleep signal. | 2010-04-01 |
| 20100079202 | A/D CONVERTER - An A/D converter provides one or more operational amplifiers as components. The A/D converter includes a current controlling unit that is activated before an actual operation of the A/D converter to control a current of at least one of the operational amplifiers based on a settling characteristic of the operational amplifier. | 2010-04-01 |
| 20100079203 | Semiconductor Device - An object is to provide a semiconductor device which operates normally even when the communication distance is extremely short, while the maximum communication distance is maintained, and which can make amplitude of a response waveform large even when a large amount of electric power is supplied to the semiconductor device and a protection circuit operates. The object is achieved with a semiconductor device including a first modulation circuit and a second modulation circuit each of which performs load modulation by an input signal, a detection circuit which determines an output signal by electric power supplied externally, a protection circuit which is controlled by the output signal of the detection circuit, and a modulation selecting circuit which switches the first modulation circuit and the second modulation circuit depending on the output signal of the detection circuit. | 2010-04-01 |
| 20100079204 | Switched-capacitor amplifier arrangement having a low input current - An SC amplifier arrangement and a method for measuring an input voltage are described. | 2010-04-01 |
| 20100079205 | Multi-Channel Amplifier - Individual channels, to which a sound signal inputting portion In having a pin jack with NC setting and an amplifier circuit Amp are provided respectively, are provided in parallel from a higher order to a lower order every four L/R channels, and a cascade connection configuration in which a signal terminal S of the higher order channel is connected to an NC contact of the lower order channel successively is employed. Accordingly, the signal on the higher order side can be transmitted to the lower order side, and as a result there is no need to input the common (Bus) signal apart from the signals on the individual channels and also the changeover switch can be omitted. | 2010-04-01 |
| 20100079206 | Digital Adaptive Feedforward Harmonic Distortion Compensation for Digitally Controlled Power Stage - Systems and method to compress digital video based on human factors expressed as a desirability score are provided. A particular method includes passing a digital input signal through a pulse-width modulator and passing an output of the pulse-width modulator through a power switching device. An output of the power switching device has a plurality of pulses. The method includes receiving the output of the power switching device at a first input of a comparator and receiving a reference voltage at a second input of the comparator. The method includes determining a net signal based on an output of the comparator and determining a timing error signal based on the net signal and the digital input signal. The method also includes adjusting the digital input signal to compensate for harmonic distortion based at least in part on the timing error signal. | 2010-04-01 |
| 20100079207 | STAGED LINEAR CONVERSION METHOD - The present invention discloses a staged linear conversion method, which comprises steps: receiving a staged linear triangular-wave signal and a reference signal with a comparator, wherein the staged linear triangular-wave signal has a waveform having at least three different slopes; and performing a conversion on the reference signal to output a PWM signal according to the voltages of the intersections of the staged linear triangular-wave signal and the reference signal and the slope variation of the staged linear triangular-wave signal. The present invention can reduce the distortion of saturation signals when a Class D amplifier performs signal conversion. | 2010-04-01 |
| 20100079208 | Minimum pulse generation in a class-D amplifier - For minimum pulse generation in a class-D amplifier, a trapezoid switching waveform shape is used to replace the tradition triangle type to generate PWM pulses. Two voltages are compared with a sawtooth wave signal to generate the trapezoid waveform signal and a constant pulse width signal. An audio input signal is compared with the trapezoid waveform signal to generate a pulse width modulation signal, and either the pulse width modulation signal or the constant pulse width signal is used for driving a load at an output of the class-D amplifier. Flexible minimum pulse width could be obtained by offsetting one of the two voltages in generation of the constant pulse width signal. | 2010-04-01 |
| 20100079209 | SETTING AN OUTPUT LEVEL OF AN AMPLIFIER APPARATUS - An amplifier module comprises an amplifier with an output and a coupling element for receiving a signal at the output. It also comprises a control input for receiving a control signal and a power detector which can be changed over and is intended to determine a power signal from the signal. The power detector which can be changed over is coupled to the control input and is set up in such a manner that a dynamic range of the power detector can be changed on the basis of the control signal. | 2010-04-01 |
| 20100079210 | POWER AMPLIFICATION DEVICE - Provided is a power amplification device including: a DC power supply that outputs a drain voltage; a Doherty amplifier including a carrier amplifier and a peak amplifier, which are connected in parallel, and amplifies an RF signal; a voltage control circuit that outputs a first instruction to output a low voltage when an output power is equal to or lower than a given value, and outputs a second instruction to output a high voltage when the output power is larger than the given value; and a voltage converter circuit that converts the drain voltage to a voltage lower than the drain voltage and applies the converted voltage to drain terminals of the carrier amplifier and the peak amplifier according to the first instruction, and applies the drain voltage directly to the drain terminals of the carrier amplifier and the peak amplifier according to the second instruction. | 2010-04-01 |
| 20100079211 | MATCHING CIRCUIT, AND RADIO-FREQUENCY POWER AMPLIFIER AND MOBILE PHONE INCLUDING THE SAME - Provided is a matching circuit, radio-frequency power amplifier, and mobile phone whereby the second harmonic can be suppressed and the loss of fundamental due to the self resonant frequency of components can be reduced. The output matching circuit includes: a transmission line through which a radio-frequency signal is transmitted; and resonators each of which includes a capacitor. The resonators respectively have (i) first terminals connected to substantially a same connecting point on the transmission line and (ii) second terminals that are grounded. | 2010-04-01 |
| 20100079212 | SEMICONDUCTOR CIRCUIT APPARATUS AND DELAY DIFFERENCE CALCULATION METHOD - A semiconductor circuit apparatus having a clock oscillating circuit includes a first inverter circuit having a power supply terminal connected to a power supply potential via a first power supply potential connection transistor and a ground terminal connected to a ground potential via a first ground potential connection transistor, an inverter circuit block having a second inverter circuit connected to the power supply potential via a second power supply potential connection transistor and to the ground potential via a second ground potential connection transistor and connected to the first inverter circuit in parallel and a selection circuit block that outputs a power supply potential connection signal to any one of gate terminals of the first and second power supply potential connection transistors and a ground potential connection signal to any one of gate terminals of the first and second ground potential connection transistors. | 2010-04-01 |
| 20100079213 | Oscillation circuit and method of controlling same - Disclosed is an oscillator in which current consumption relating to oscillation is reduced. The oscillator comprises: an amplifier to an input and output of which a piezoelectric oscillator and a feedback resistor are connected in parallel, and which is constituted by a CMOS logic inverter circuit; and a control circuit, which is constituted by a CMOS logic circuit, for clamping input/output levels of the amplifier and halting oscillation before oscillation start-up, unclamping the input/output levels at beginning of oscillation start-up and supplying a pulse signal to an output terminal of the amplifier a prescribed period of time after the beginning of oscillation start-up. | 2010-04-01 |
| 20100079214 | Temperature compensation method and apparatus for an output frequency signal based on successive approximation - Techniques of compensating frequency in an output in reference to a reference frequency signal are disclosed. The reference frequency signal may be from a crystal oscillator or other oscillators. Due to the changes of the temperature, the reference frequency signal drifts. According to one aspect of the techniques, a temperature frequency correction word is generated in accordance with a frequency compensation value in view of a current temperature to generate a substantially temperature compensated frequency output from a reference frequency signal. The frequency control word is produced from a successive approximation circuit configured to produce the temperature frequency correction word in accordance with the frequency compensation value in view of the current temperature. Both the temperature frequency correction word and a frequency control word are data represented in a sequence of bits. As a result, the compensated frequency output can be of high precision. | 2010-04-01 |
| 20100079215 | SYSTEM, APPARATUS AND METHOD FOR DISSIPATING STANDING WAVE IN A MICROWAVE DELIVERY SYSTEM - A system, apparatus and method for dissipating standing waves in a microwave energy delivery system including a microwave energy source configured to intermittently delivery microwave energy as a periodic microwave signal an energy delivery network configured to transmit the periodic microwave signal and a circuit connected between the microwave energy source and the energy delivery network. The circuit is configured to pass the periodic microwave signal from the microwave energy source to the energy delivery network when the periodic microwave signal is present and to dissipate standing waves when the periodic microwave signal is absent. | 2010-04-01 |
| 20100079216 | ADAPTIVE EQUALIZER CIRCUIT - An equalizer amplifies a predetermined bandwidth of an input signal with an adjustable gain. A driver amplifies an output signal S | 2010-04-01 |
| 20100079217 | Multilayer metamaterial isolator - A multilayer metamaterial isolator and method of fabricating the same. A first layer or surface of a multilayer dielectric substrate includes a first leg of a first resonator loop. A second layer or surface of the multilayer dielectric substrate includes a second leg of the first resonator loop. A third leg of the first resonator loop extends through the multilayer dielectric substrate interconnecting the first and second legs of the first resonator loop. | 2010-04-01 |
| 20100079218 | CHOCKLESS POWER COUPLER - A wideband power coupler and method for taping part of a RF signal from a combined RF and AC signal with relatively simple structure and relatively low number of needed parts. The power coupler may include a BALUN, the BALUN constructed of a central conductor, an outer conductor and a ferrite element. Combined downstream AC and RF signal may flow through the central conductor of the BALUN. A part of the RF signal is reflected on the outer conductor of the BALUN with 180 degrees phase shift with respect to the RF signal, to create a reversed signal. Another part of the RF signal is sampled by a high pass filter. An autotransformer sums the reversed signal with the RF signal to create an output RF signal for an output tap port. When an upstream combined RF and AC signal flows through the BALUN, the phase of the RF signal reflected on the outer conductor of the BALUN is aligned with the phase of the RF signal sampled by the high pass filer such that the autotransformer cancels the upstream RF signal at the output tap port and the power coupler provides isolation to the output port. | 2010-04-01 |
| 20100079219 | PLANAR STRUCTURE MICROWAVE SIGNAL MULTI-DISTRIBUTOR - In a conventional Bagley polygon power divider of a planar configuration, a length of transmission lines from an input port to output ports adjacent thereto on both sides is determined to be a quarter wavelength and a geometry thereof is an odd regular polygon with each side being a length equal to half of a wavelength at a designed frequency, which is large in size. Since the output ports are located at vertices of the regular polygon, inconvenience can be caused, e.g., in arrangement of the output ports. | 2010-04-01 |
| 20100079220 | N-Channel Multiplexer - A radio frequency (RF) channelizer includes a first four-port balun, a second four part balun and a pair of filters coupled between the first and second four port baluns. The filters operate such that RF signals having a frequency within a desired frequency band (so-called “in-band” signals) can propagate between the first and second baluns (e.g. from the first balun to the second balun) while signals having a frequency outside the desired frequency band (so-called “out-of-band signals”) are reflected back to the first balun. One filter reflects out-of-band signals while maintaining the magnitude and phase of the signal (i.e. with a 0 degree phase shift), while the other filter reflects out-of-band signals with a phase-reversal (i.e. with a 180 degree phase shift). With this approach, the reflected signals propagate to a sum port (or even mode port) of the first balun. In this way, the balun-filter combination results in a channelizer which separates signals into different frequency bands. | 2010-04-01 |
| 20100079221 | RESONATOR AND FILTER - The present invention provides a resonator and a filter that reduce the resonator radiation loss so as to achieve a high Q value that is inherent to a low-loss material while maintaining high power handling capability. In this manner, both high power handling capability and a high Q value can be achieved at the same time. The resonator is a microstripline structure and includes a line structure formed with resonance lines in which current standing waves are generated in a resonant state in a line, and currents in each two adjacent lines flow in the opposite directions from each other, and a connection line that connects the resonance lines at the portions having in-phase voltages among the nodes of the current standing waves of the resonance lines in the resonant state. The filter includes resonators of the same type as the above resonator. | 2010-04-01 |
| 20100079222 | Coplanar waveguide and fabrication method thereof - A coplanar waveguide includes a signal line formed on a major surface of a high-resistivity silicon substrate, a pair of ground conductors placed on opposite sides of the signal line, and a pair of trenches formed in the substrate between the signal line and the ground conductors. Because of the trenches, the attenuation characteristics of the coplanar waveguide are highly uniform, and are comparable to the attenuation characteristics of coplanar waveguides formed on compound semiconductor substrates. | 2010-04-01 |
| 20100079223 | MINIATURIZED DUAL-BALANCED MIXER CIRCUIT BASED ON A TRIFILAR LAYOUT ARCHITECTURE - A miniaturized dual-balanced mixer circuit based on a trifilar layout architecture is proposed, which is designed for use to provide a frequency mixing function for millimeter wave (MMW) signals, and which features a downsized circuit layout architecture that allows IC implementation to be more miniaturized than the conventional star-type dual-balanced mixer (DBM). The proposed miniaturized dual-balanced mixer circuit is distinguished from the conventional star-type DBM particularly in the use of a trifilar layout architecture for the layout of two balun circuit units. This feature allows the required layout area to be only about 20% of that of the conventional star-type DBM. | 2010-04-01 |
| 20100079224 | Manually Adjustable Attenuator - An improved manually adjustable wave attenuator for a waveguide comprises a resistive portion sandwiched between two dielectric portions. In a preferred embodiment the adjustable attenuator comprises a first card further comprising a dielectric portion and a resistive portion and a second dielectric card of substantially the same thickness as said first card, thereby minimizing the possibility of the resistive material coming into contact with and shorting to the resistive card opening, and reducing the required width of the card channel, while many of the problems regarding RF leakages that occur in conventional systems. Finally, more precisely centering the resistive material to the waveguide center is possible because process of affixing the two cards reduces warpage therein, and puts the resistive film symmetrically between the dielectric portions. | 2010-04-01 |
| 20100079225 | INPUT DEVICE AND ELECTRONIC APPARATUS USING SAME - An input device has a housing having an operation hole formed therein, an operation member supported in a slidably moving manner in multi-directions within the operation hole, and at least two magnetic sensors, arranged at a periphery of the operation member, for detecting change in magnetic property by displacement of the operation member. The operation member includes a holder having a circular ring-shaped magnet incorporated in a fit-in hole and a central push button having a disc plate made of magnetic material integrated at a lower surface. The central push button is fitted in the circular ring-shaped magnet to adsorb, in a separable manner, the disc plate to the circular ring-shaped magnet and position-regulate the central push button. | 2010-04-01 |
| 20100079226 | SINGLE COIL ACTUATOR FOR LOW AND MEDIUM VOLTAGE APPLICATIONS - A single-coil actuator for low or medium voltage applications which comprises a first assembly which comprises a first casing having a first half-casing and a second half-casing coupled to each other. The first casing defines an internal space housing an electromagnet having a coil and an armature movable between two positions. The first half-casing has a first opening for the mechanical coupling of the armature with an external element, while one of the first or second half-casing has a second opening for the electrical connection of the electromagnet. The electrical connection comprises a first connection element of the socket and plug-type connection which is electrically connected to the coil and positioned in correspondence of the second opening. | 2010-04-01 |
| 20100079227 | FLUX MITIGATION - Aspects relate to mitigation of a magnetic field produced by one or more units to be shipped such that a magnitude of magnetic field measured is maintained at or below a threshold level. A counter-flux is applied through the use of one or more magnets, magnet arrays, or a geometrical arrangement of magnet arrays. The strength of the counter-flux is varied by altering size, shape, number, polarity and/or location of the one or more magnets or magnet arrays. The one or more magnets or magnet arrays can be constructed as standard assemblies and/or customized magnet assemblies. Additionally, magnet tiles or configurations can provide a return path for stray field leakage and mitigation. Additionally or alternatively, the placement and orientation of the magnets or magnet arrays allows the flux of one or more units to be mitigated, thus, allowing more than one unit to be shipped at the same time. | 2010-04-01 |
| 20100079228 | POWER ELECTRONIC MODULE WITH AN IMPROVED CHOKE AND METHODS OF MAKING SAME - An improved choke assembly for a power electronics device is provided. More specifically, a choke assembly with improved protection from environmental conditions such as dirt and water is provided. An improved choke assembly may include a double layer of protection around an inductor coil of a choke that seals the inductor coil from the outside environment. Another embodiment may include a choke with a projection that seals the cabinet from the cooling channel while allowing the choke leads to pass into the cabinet. | 2010-04-01 |
