39th week of 2015 patent applcation highlights part 60 |
Patent application number | Title | Published |
20150270763 | METHOD FOR WINDING EDGEWISE COIL AND WINDING DEVICE - Provided is a method for winding an edgewise coil and a winding device capable of saving time and labor when changing a guide. A guide bar is disposed in contact with the side face of the rectangular conductor bent by the bending jig and the rotation center of the guide bar deviates from the rotation center of a bending jig for bending a rectangular conductor. The guide bar rotates in accordance with the action whereby the bending jig bends the rectangular conductor and supports the outside surface of a coil on the side of rotational direction of the bending jig. | 2015-09-24 |
20150270764 | OSCILLATING TYPE ACTUATOR - To provide a novel oscillating type actuator capable of securing a stoppage and holding when not energized, and producing a stable, responsive and highly durable oscillating arm even using a non-rare each magnet. The actuator is constituted by a housing; a shaft supported in the housing to be axially rotatable and has an output part to produce an output; a plate-shape oscillating arm that is fixedly supported to a shaft and has a swing surface perpendicular to the axis of the shaft, the oscillating arm performing a swing in a predetermine rotation angle range; two permanent magnets arranged along a swing direction of the oscillating arm and have pole faces different from each other on the swing surface; two magnet coils opposingly arranged to respectively face the permanent magnets; and a pair of interpoles arranged around a periphery of each of the magnet coils to opposingly sandwich one of the permanent magnets arranged side by side. | 2015-09-24 |
20150270765 | VIBRATION ELECTRICITY GENERATION DEVICE - A vibration electricity generation device according to an embodiment of the present invention includes a fixed unit provided with a coil and a movable unit provided with a magnet. The movable unit is supported on the fixed unit in a suspended manner via a pair of coil springs. The movable unit is thus configured to vibrate in the up and down direction with a rather simple structure. A coil supporting member of the fixed unit is configured to cover a coil accommodating portion from both thickness direction sides thereof and a friction reducing treatment is applied to the surfaces of both thickness direction sides of the coil supporting member. The coefficient of kinetic friction is thus maintained low enough and a pair of guide shafts conventionally used are not required, thereby the electricity generation efficiency being improved. | 2015-09-24 |
20150270766 | Scalable, Highly Dynamic Electromagnetic Linear Drive With Limited Travel And Low Transverse Forces - A scalable, highly dynamic electromagnetic linear drive with limited travel. The linear actuator is distinguished by low transverse forces. The linear actuator comprises a stator comprising two soft-magnetic limbs; an armature made of soft-magnetic material which is flat at least in certain sections and which is arranged so as to be movable along an axis between the limbs of the stator; at least two flat coils with a soft-magnetic core and a large coil height, which coils are attached to the stator (stator coils), wherein the coil cores are part of the soft-magnetic limbs or are connected thereto in a magnetically conductive fashion; at least one flat coil (armature coil) with a soft-magnetic core and a large coil height which is attached to the armature, wherein the coil core can be part of the armature or can be formed therefrom, or the armature coil is located with its soft-magnetic core lying in a recess in the flat armature; a well-defined start and end position of the travel (“end positions”); at least one switchable means which is designed to lock the armature in at least one end position counter to a restoring force, for example a self-locking magnet or a mechanical latch, a switchable power supply composed of an energy accumulator, for example a capacitor battery, and at least one switch. | 2015-09-24 |
20150270767 | MOVER AND LINEAR MOTOR EQUIPPED WITH THE MOVER - An object is to provide a mover that holds magnets and that achieves weight reduction and has reliability of strength. The present invention relates to the mover of a linear motor. The mover includes a plurality of the magnets, the magnets being arrayed along a first direction, and metal covers, the metal covers being provided on both sides of the magnets so as the magnets are interposed therebetween and thus held in place. A plurality of protrusions, the protrusions extending in a second direction that is perpendicular to the first direction and formed in the metal covers on a surface at a side of the magnets. The magnets are provided between the protrusions. | 2015-09-24 |
20150270768 | Sealed Magnetic Drive for Rotary Machine - A rotary machine is disclosed which is coupled to a motor by a magnetic coupling. An outer magnet drives an inner magnet which is fixed to a rotary shaft which turns a rotor of the machine. The inner magnet is in an enclosure filled with pressurized fluid. The outer magnet is driven by a motor, both the outer magnet and motor being placed in a pressurized cavity outside of the enclosure for the inner magnet. Such arrangement enables the machine, including the motor to be submerged in the sea or chemical liquid while preventing seawater or liquid chemical contamination of the motor and the rotating machine. | 2015-09-24 |
20150270769 | FIELD ROTOR OF SUPERCONDUCTING ROTATING MACHINE - A field rotor of a superconducting rotating machine including: a rotation shaft; a supply shaft that supplies a refrigerant to the rotation shaft at one end of the rotation shaft; an input/output shaft provided at the other end of the rotation shaft so as to integrally rotate with the rotation shaft; and a superconducting coil held on a circumferential surface of the rotation shaft to be cooled by the refrigerant, wherein the supply shaft and the input/output shaft are fixed to each other so as to rotate integrally with each other, and the rotation shaft and the supply shaft are at least partly brought in contact with each other in order to allow the rotation shaft to be supported by the supply shaft and in order to be slidably fitted to each other in a circumferential direction of the rotation shaft and in an axial direction of the rotation shaft. | 2015-09-24 |
20150270770 | SYSTEMS AND METHODS FOR MITIGATION OF RESISTOR NONLINEARITY ERRORS IN SINGLE OR MULTIPHASE SWITCHING VOLTAGE REGULATORS EMPLOYING INDUCTOR DCR CURRENT SENSING - Systems and methods for mitigation of resistor nonlinearity errors in a power converter are provided. In at least one embodiment, the power converter comprises at least one power switch coupled to an input voltage, a pulse width modulation (PWM) circuit for generating control pulses for the at least one power switch, at least one output inductor coupled to a respective one of the at least one power switches, a current sensor coupled in parallel with the at least one output inductor, and at least one circuit element. The current sensor comprises at least one capacitor, at least one resistor for each of the at least one output inductors, and is coupled to the PWM circuit at a current bleed node. The at least one circuit element is coupled to the current bleed node and bleeds a bleed current from the current bleed node when a power switch is turned on. | 2015-09-24 |
20150270771 | Bidirectional Two-Base Bipolar Junction Transistor Operation, Circuits, and Systems with Collector-Side Base Driven - Methods, systems, circuits, and devices for power-packet-switching power converters using bidirectional bipolar transistors (BTRANs) for switching. Four-terminal three-layer BTRANs provide substantially identical operation in either direction with forward voltages of less than a diode drop. BTRANs are fully symmetric merged double-base bidirectional bipolar opposite-faced devices which operate under conditions of high non-equilibrium carrier concentration, and which can have surprising synergies when used as bidirectional switches for power-packet-switching power converters. BTRANs are driven into a state of high carrier concentration, making the on-state voltage drop very low. | 2015-09-24 |
20150270772 | System for Improving Power Factor in an AC Power System - Disclosed is a system for improving power factor in an AC power system. The power system has an AC power source and an electrical load that are interconnected by at least one power conveying line. The system also comprises a power factor-improving circuit including at least one channel that comprises a channel-level bidirectional electron tube circuit and at least one associated reactive impedance element connected between a power conveying line of the AC power system and ground. Each channel-level bidirectional electron tube circuit is responsive to a control system for connecting or disconnecting at least one associated reactive impedance element when needed for improving power factor. Each channel-level bidirectional electron tube circuit also comprises one bidirectional cold-cathode field-emission electron tube rated at medium to high voltage or two unidirectional cold-cathode field-emission electron tubes rated at medium to high voltage and connected in an anti-parallel manner. | 2015-09-24 |
20150270773 | CONTROL CIRCUIT FOR MULTIPHASE SWITCHING CONVERTER TO REDUCE OVERSHOOT AND ASSOCIATED CONTROL METHOD - A multiphase switching converter having a plurality of switching circuits and a control circuit, the plurality of switching circuits provide an output voltage, the control circuit provides a plurality of switching control signals to turn ON the plurality of switching circuits successively based on the output voltage and a reference signal, when the output voltage is detected overshooting, the control circuit turns OFF a current switching circuit, and when the output voltage is detected recovering from overshooting, the control circuit turns ON the current switching circuit again for a first time period until a sum of the first time period and a second time period achieves a predetermined value, wherein the second time period is a time period the current switching circuit maintains ON uninterruptedly before the output voltage is detected overshooting. | 2015-09-24 |
20150270774 | POWER SUPPLY CIRCUIT - In a power supply circuit having input and output terminals, an error amplifier has first and second paths independent of each other to output a control voltage, a first MOS transistor is interposed between the input terminal and an intermediate node, and a step-up section steps up a voltage supplied from the intermediate node and outputs the stepped-up voltage to the output terminal. The step-up section includes a capacitor, a second MOS transistor, a third MOS transistor, and a drive circuit. The first end of the capacitor is connected to the intermediate node. The second MOS transistor is interposed between the input terminal and a second end of the capacitor. The third MOS transistor is interposed between the second end of the capacitor and a ground. The drive circuit drives the second and third MOS transistors in a complementary manner based on a clock signal. | 2015-09-24 |
20150270775 | FAST STARTUP CHARGE PUMP - A charge pump is designed to be capable of quick start up. When the enable signal of the charge pump is arrived, the pump capacitor and the load capacitor of the charge pump can be charged in a short time, referred to as a pre-charging stage. During the normal working period, the pump capacitor and the output capacitor are controlled by the proper switch that is configured into the connection relationship that the charge pump can normally work in order to make the charge pump work normally. As a result of the pre-charge operation, embodiments disclosed herein can reduce the time of the output capacitor for reaching a steady state value. | 2015-09-24 |
20150270776 | Power Management System and Method of Use Thereof - One embodiment of a power management system includes a reservoir configured to collect energy. The system also includes a voltage regulator coupled to the reservoir via an input terminal and configured to convert the energy to an output voltage via an output terminal when enabled. A threshold detector is coupled to the reservoir and is configured to sense the energy and enable the voltage regulator when the energy exceeds a threshold. The system further includes a feedback circuit coupled between the output terminal and the threshold detector, and configured to feedback the output voltage to the threshold detector to compensate for a voltage drop across the threshold detector due to an output current drawn by the load. | 2015-09-24 |
20150270777 | MASTER-SLAVE DIGITAL VOLTAGE REGULATORS - Described is an apparatus which comprises: a first bridge to be coupled to a first load; a first Pulse Width Modulation (PWM) circuit to drive the first bridge; a second bridge to be coupled to a second load; and a second PWM circuit to drive the second bridge, wherein the first PWM circuit is controlled by a first digital word separate from a second digital word, wherein the second PWM circuit is controlled by the second digital, and wherein the second digital word is derived from the first digital word. | 2015-09-24 |
20150270778 | Adaptive Pre-Charge Voltage Converter - A voltage converting device includes a feedback module, for generating a comparing signal according to a feedback voltage and a reference voltage; a pulse-width-modulation module, for generating a driving signal according to comparing signal; a voltage-converting module including a low-side switch for controlling a connection between a node and ground according to driving signal, a high-side switch for controlling a connection between the node and an output end according to a control signal, an inductor coupled between the node and an input end, a feedback-voltage-generating unit for generating feedback voltage according to an output voltage of output end and a ratio, an adaptive current-generating unit for generating a current signal according to an adjusting signal, and a control unit for selecting driving signal or current signal as the control signal according to output voltage and an input voltage; and a current-adjusting module for generating adjusting signal according to comparing signal. | 2015-09-24 |
20150270779 | DC-DC BOOST CONVERTER FOR POWER GENERATION ELEMENT - A DC-DC boost converter for a power generation element includes a power generation element configured to generate a both end voltage and a power supply current, an inductor charged by the power supply current, a first and second switch units comprising a plurality of first and second transistors, an MPPT control unit configured to detect the both end voltage and output a control signal to the first and second switch units so that an input voltage output from the power generation element is maintained as a predetermined proportion of the both end voltage, a current detection unit configured to output a signal for controlling the number of enabled first transistors and second transistors according to an intensity of the power supply current, and a switch selection unit configured to connect the first transistors and the second transistors through the signal. | 2015-09-24 |
20150270780 | CONSTANT CURRENT REGULATOR - A constant current regulator includes a first transistor having a first terminal coupled with an input voltage; a second transistor having a first terminal coupled with a control terminal of the first transistor; a third transistor having a first terminal coupled with the first terminal of the first transistor and having a control terminal coupled with the first terminal of the second transistor; a first resistor having a first terminal coupled with a second terminal of the third transistor and having a second terminal coupled with a control terminal of the second transistor; a second resistor having a first terminal coupled with the control terminal of the second transistor and having a second terminal coupled with a second terminal of the second transistor; and a third resistor having a first terminal coupled with the second terminal of the third transistor and having a second terminal coupled with a fixed-voltage terminal. | 2015-09-24 |
20150270781 | POWER CONVERSION APPARATUS AND CONTROL METHOD THEREOF - A power conversion apparatus and control method thereof are provided. The power conversion apparatus includes an output capacitor, an AC-to-DC conversion circuit, a transformer-based auxiliary circuit, an inrush suppression component and a switching circuit. The AC-to-DC conversion circuit is configured to convert an AC power into a DC power. The auxiliary circuit provides a leakage inductance energy. The inrush suppression component provides a first conduction path, and the switching circuit provides a second conduction path. When the switching circuit cuts off the second conduction path in response to the leakage inductance energy, the AC-to-DC conversion circuit conducts the DC power to the output capacitor via the first conduction path. When the switching circuit turns on the second conduction path in response to the leakage inductance energy, the AC-to-DC conversion circuit conducts the DC power to the output capacitor via the second conduction path. | 2015-09-24 |
20150270782 | Controlling Method for Multi-leg Isolation DC/DC Converter with Wide Input Voltage Scope - The present invention relates to a controlling method for multi-leg isolation DC/DC converter with wide input voltage scope, in which a transformer having at least three primary winding coils and one secondary winding coil is provided in a multi-leg DC/DC converter. Moreover, a converter controlling module is provided to treat the DC input voltage and the DC output voltage received from the multi-leg DC/DC converter with an over voltage determination, therefore the converter controlling module is able to output a proper driving signal to a plurality of power switch sets of the multi-leg DC/DC converter for making the power switch sets be operated at different ON/OFF states, so as to make the transformer has a specific coil turn ratio. By such way, the DC input voltage of the multi-leg DC/DC converter would be automatic modulated for facilitating the multi-leg DC/DC converter to provide a stable DC output voltage. | 2015-09-24 |
20150270783 | DC-DC CONVERTER, I/O MODULE INCLUDING THE SAME, AND METHOD FOR CONTROLLING DC-DC CONVERTER - Embodiments of the present invention provide a DC-DC converter, an input/output (I/O) module including the DC-DC converter, and a method for controlling DC-DC converter. The converter can comprise a planar transformer ( | 2015-09-24 |
20150270784 | FLYBACK CONVERTER CIRCUIT - The invention relates to a flyback converter circuit comprising a transformer, a charging capacitor, a diode, a semiconductor switch and a controller, which form a flyback converter, wherein the controller is designed to control the semiconductor switch after the start of the flyback converter. The transformer has a primary winding and a secondary winding each having a winding beginning and a winding end. Furthermore, a start transistor is provided, which is coupled by its gate terminal to the winding beginning of the secondary winding of the transformer and is connected by its drain terminal to the winding end of the primary winding of the transformer, wherein an oscillator is formed at least by means of the transformer and the start transistor. Moreover, the charging capacitor supplies the controller with energy. The diode is provided between the winding beginning of the secondary winding of the transformer and the charging capacitor, wherein the anode of the diode is connected to the charging capacitor. | 2015-09-24 |
20150270785 | POWER CONVERTER AND METHOD FOR SETTING THE OPERATION AND THE START-UP OF A POWER CONVERTER - A power converter, for example, an inverter of a photovoltaic system, is designed to read out an exchangeable memory medium and to carry out an operation setting and/or a start-up of the power converter in accordance with the settings data, the settings data being read from the exchangeable external memory medium. A method for setting the operation and/or the start-up of a power converter, for example, for setting the operation and/or the start-up of an inverter, is performed in accordance with settings data read from an external memory medium. | 2015-09-24 |
20150270786 | SEMICONDUCTOR DEVICE - A semiconductor device can include an insulating substrate on which at least four semiconductor elements forming a three-level power conversion circuit are mounted, a base plate on which the insulating substrate is provided, a positive conductor plate with a positive DC potential which is connected to one semiconductor element among the semiconductor elements; a negative conductor plate with a negative DC potential which is connected to another semiconductor element among the semiconductor elements and an intermediate potential conductor plate with an intermediate potential which is connected to the remaining two semiconductor elements among the semiconductor elements. The positive conductor plate, the negative conductor plate, and the intermediate potential conductor plate are provided on the base plate. The positive conductor plate and the negative conductor plate are arranged close to the intermediate potential conductor plate so as to face the intermediate potential conductor plate. | 2015-09-24 |
20150270787 | POWER CONVERTER, POWER GENERATING SYSTEM, APPARATUS FOR CONTROLLING POWER CONVERTER, AND METHOD FOR CONTROLLING POWER CONVERTER - A power converter according to one embodiment includes a controller that switches between a boosting operation in a boost circuit and a pulse-width modulation operation in a single-phase inverter. The controller modifies an output from a voltage detection filter based on a delay compensating value for compensating a detection delay introduced by the voltage detection filter, when switching is performed the boosting operation in the boost circuit to the PWM operation in the single-phase inverter. | 2015-09-24 |
20150270788 | POWER CONVERSION APPARATUS AND CONTROL METHOD FOR POWER CONVERSION APPARATUS - A power conversion apparatus includes a DC/DC converter which transforms DC power input from a dispersion type power source into DC power, a capacitor which holds the DC power supplied from the DC/DC converter, an inverter which converts the DC power held by the capacitor to AC power and outputs the AC power to a power system, and a controller which controls, when the power system recovers from an instantaneous voltage drop, the inverter to lower an AC current output from the inverter to be smaller than a value before occurrence of the instantaneous voltage drop by an amount increasing with an increase in the amount of voltage drop during the instantaneous voltage drop and to raise the AC current from the inverter after the lowering. | 2015-09-24 |
20150270789 | Multilevel Converter and Power Supply System - A multilevel converter includes at least one converting unit, where the converting unit includes N interleaved parallel bridge arms which enable the converting unit to output 2[(M−1×)N]+1 level signals, where N is an integer greater than or equal to 3, M is the number of levels received by the converting unit, and M is an integer greater than or equal to 3; a direct current inputting unit that supplies the direct current to the converting unit; a voltage dividing unit, where an input end of the voltage dividing unit is connected to an output of the direct current inputting unit, and an output end of the voltage dividing unit is connected to an input end of the converting unit; and at least one filtering unit, where the filtering unit is connected to the converting unit to output an alternating current. | 2015-09-24 |
20150270790 | ULTRASONIC MOTOR CONTROL SYSTEM AND METHOD - A method of controlling an ultrasonic motor coupled to a motor driver circuit, comprises receiving a temperature signal representing the temperature of the ultrasonic motor, receiving a position signal output by a first encoder representing the position of the ultrasonic motor, calculating an error between the position of the ultrasonic motor represented by the position signal and a target position, calculating a control signal based on the temperature of the ultrasonic motor represented by the temperature signal and the calculated error, and sending the control signal to the motor driver circuit to control the ultrasonic motor. | 2015-09-24 |
20150270791 | STACKED ACTUATOR APPARATUS, SYSTEM, AND METHOD - A method of fabricating a stacked electroactive transducer comprises a cyclic process for providing a multilayer stack. The stacked transducer can be manufactured using a roll-to-sheet lamination process including a vacuum belt process, various loop cast processes, and a continuous lamination process. | 2015-09-24 |
20150270792 | HIGH VOLTAGE ELECTROSTATIC GENERATOR - A high-voltage electrostatic generator comprising an assembly of concentric electrically conductive half-shells ( | 2015-09-24 |
20150270793 | Automated Verification Testing for a Motor Capacitor - A motor capacitor verification unit includes a capacitor selection section coupled to an electric motor employing a motor capacitor for its operation that connects the motor capacitor for verification testing. Also included is a capacitor testing section coupled to the capacitor selection section that evaluates the motor capacitor for operation with the electric motor. Further included is an AC power control section coupled to the capacitor testing section and that only permits application of an AC operating voltage to the electric motor and the motor capacitor after a successful motor capacitor verification as required for electric motor operation. An electric motor operating system, an HVAC operating system and methods of operating an electric motor, retrofitting a motor capacitor verification unit to an electric motor and manufacturing a motor capacitor verification unit for use with an electric motor are also provided. | 2015-09-24 |
20150270794 | SOFT-START CONTROL FOR ELECTROMECHANICAL DEVICES USING A RESISTOR-CAPACITOR CIRCUIT - A system for controlling an electromechanical device includes a motor drive, a main controller, a voltage regulator and a resistor-capacitor circuit. The motor drive controls an electric motor of the electromechanical device. The main controller provides motor commands to control the motor drive that are provided by providing command voltage on at least one command line. The voltage regulator circuit receives the command voltage and provides a motor voltage to power the motor drive. A capacitor of the resistor-capacitor circuit is charged by the command voltage, and the motor voltage is controlled based upon charge of the capacitor. | 2015-09-24 |
20150270795 | CONTROL APPARATUS OF INJECTION MOLDING MACHINE - A power supply converter controller in an injection molding machine continuously operates a power supply converter in a continuous operation interval, operates the power supply converter in a step-up interval to increase a voltage of an electric storage unit up to a step-up voltage, and intermittently operates the power supply converter in an intermittent operation interval. | 2015-09-24 |
20150270796 | MOTOR CONTROL DEVICE AND MOTOR DRIVE DEVICE - A sampling period of information according to a load state of an alternating-current motor is controlled so as to be variable with respect to a carrier period of a PWM circuit, and a predetermined arithmetic operation for aggregating information sampled in one period of the carrier period is performed in a separate arithmetic circuit from a CPU. Thereby, in a situation where the rotation of the alternating-current motor becomes too fast with respect to the carrier period, motor rotation control for suppressing a sudden fluctuation of a motor load can be performed by faster reaction while suppressing an increase in an arithmetic control load of a CPU. | 2015-09-24 |
20150270797 | METHOD FOR ASCERTAINING THE PHASE CURRENTS OF AN ELECTRIC MACHINE HAVING A POWER CONVERTER - In a method for ascertaining the phase currents of an electric machine having a power converter and a stator with a phase number of four or more, the phase currents of a measuring number of measuring phases is measured, which is at least two and is lower by at least two than the phase number, and the phase currents of the remaining phases are arithmetically determined from the measured phase currents, at least the measured phase currents, a spatial angle of the measuring phases and a spatial angle of the remaining phases being used for the arithmetical determination. | 2015-09-24 |
20150270798 | Wind Power Excitation Synchronous Generation System Having Maximum Power Determining Unit and Control Method thereof - A wind power excitation synchronous generation system having a maximum power determining unit and a control method thereof are disclosed. In this control method, dual input shafts and a single output shaft of a gear transmission mechanism are used, and two kinds of inputted power, such as wind power and servo motor control power, are integrated, so as to allow the output shaft to drive an excitation synchronous generator to generate electric power. In this system, a rotation speed and a phase of a servo motor are controlled, so as to allow the excitation synchronous generator to output the electric power with a frequency and a phase identical to the utility grid. | 2015-09-24 |
20150270799 | SYSTEM AND METHOD FOR CONTROLLING MULIPHASE ELECTRIC MOTORS - Controlling a multiphase electric motor by controlling the transmission of power to a first set of phases of a multiphase electric motor in accordance with a first operating configuration; detecting the presence of a shorted phase in the first set of phases while the first set of phases are being operated in accordance with the first operating configuration; and, responsive to detection of the shorted phase, adjusting control of the transmission of power to the multiphase electric motor such that power is transmitted to a second set of phases in accordance with a second operating configuration. | 2015-09-24 |
20150270800 | MODULAR MOTOR DRIVE CONFIGURATION SYSTEM AND METHOD - A motor drive system includes a power sub-assembly that comprises power electronic components and driver circuitry for controlling gate drive signals to the power electronic components. A control sub-assembly is removably mounted to the power sub-assembly and comprises control circuitry for implementing a motor control routine for control of an electric motor. In operation, all control signals originate in the control-subassembly, and are transmitted via mating connectors to the power sub-assembly for driving the motor. | 2015-09-24 |
20150270801 | ENERGY STORAGE DEVICE, SYSTEM COMPRISING AN ENERGY STORAGE DEVICE, AND METHOD FOR ACTUATING AN ENERGY STORAGE DEVICE - The invention relates to an energy storage device ( | 2015-09-24 |
20150270802 | ADJUSTABLE COMBINED FLASHING AND MOUNTING APPARATUS AND METHOD OF MOUNTING TO BE USED THEREWITH - The present disclosure is directed to a roof mounting system that utilizes a base plate that is affixed to a roof surface by multiple fasteners (e.g., lag bolts, screws etc.) and a cap (e.g., top cap) that attaches to the base plate covering the fasteners affixing the base plate to the roof surface. Once attached, the top cap covers the fasteners preventing water infiltration. To further waterproof the fasteners affixing the base plate to the roof surface, the base plate includes a raised or elevated section on its top surface with a planar flange extending around the elevated section. A portion of the flange may be disposed beneath a single or shingles on a roof surface. The fasteners extend through the elevated section. Accordingly, water drains around the elevated section when the base plate is attached to a roof surface further isolating the fasteners. | 2015-09-24 |
20150270803 | SUPPORT FOR SOLAR ENERGY COLLECTORS - A solar energy collection system can include support devices made with bearings formed from sheet material. These bearings can be optionally formed so as to provide tool-less connections to their associated bearing housings. The bearings can be formed with an open configuration allowing a shaft to be inserted into an open bite of the bearing. Optionally, the bearing can be made from an ultrahigh molecular weight polyethylene plastic material. Additionally, two open-type bearing assemblies can be mounted axially offset and opposed to one another. | 2015-09-24 |
20150270804 | LOW POWER OSCILLATOR WITH CHARGE SUBTRACTION SCHEME - An ultra-low power oscillator is designed for wake-up timers that can be used in compact wireless sensors, for example. A constant charge subtraction scheme removes continuous comparator delay from the oscillation period, which is the source of temperature dependence in conventional RC relaxation oscillators. This relaxes comparator design constraints, enabling low power operation. In 0.18 μm CMOS, the oscillator consumes 5.8 nW at room temperature with temperature stability of 45 ppm/° C. (−10° C. to 90° C.) and 1%/V line sensitivity. | 2015-09-24 |
20150270805 | APPARATUS AND METHODS FOR AUTOZERO AMPLIFIERS - Apparatus and methods for autozero amplifiers are provided herein. In certain configurations, an autozero amplifier includes at least three transconductance stages and an autozero timing control circuit configured to control an autozero sequence of the transconductance stages. The autozero timing control circuit can stagger autozeroing of the transconductance stages, such that a relatively small amount of the amplifier's amplification circuitry is connected to or disconnected from the amplifier's signal path at any given time. For example, in certain configurations, when one of the transconductance stages in autozeroed over a particular time interval, the remaining transconductance stages can operate in parallel to provide amplification during that time interval. | 2015-09-24 |
20150270806 | Bias Control for Stacked Transistor Configuration - Various methods and circuital arrangements for biasing one or more gates of stacked transistors of an amplifier are presented, where the amplifier can be an envelope tracking amplifier. Circuital arrangements to generate reference gate-to-source voltages for biasing of the gates of the transistors of the stack are also presented. Particular biasing for a case of an input transistor of the stack is also presented. | 2015-09-24 |
20150270807 | METHOD AND APPARATUS FOR PARTIAL ENVELOPE TRACKING IN HANDHELD AND WIRELESS COMPUTING DEVICES - A partial envelope tracking (PET) circuit for improving the dynamic range and the efficiency of a power amplifier amplifying high bandwidth signals is provided. The PET circuit includes a main supply path having a main valve (MV) connecting the power amplifier to a first power source; a storage capacitor connecting a junction node and the power amplifier; a supplementary supply path including a DV and a TV, each of the DV and the tracking valve connecting, in parallel between a second power source and the junction node; a supplementary current path including a GV connecting the junction node and a ground; and a valves control unit (VCU) configured to monitor an envelope tracking parameter to determine an operation mode of the circuit and a state of each of the MV, the GV, the DV, and the TV during each respective mode of operation. | 2015-09-24 |
20150270808 | TRANSIMPEDANCE AMPLIFIER | 2015-09-24 |
20150270809 | POWER AMPLIFICATION MODULE - A power amplification module includes a first transistor which amplifies and outputs a radio frequency signal input to its base; a current source which outputs a control current; a second transistor connected to an output of the current source, a first current from the control current input to its collector, a control voltage generation circuit connected to the output and which generates a control voltage according to a second current from the control current; a first FET, the drain being supplied with a supply voltage, the source being connected to the base of the first transistor, and the gate being supplied with the control voltage; and a second FET, the drain being supplied with the supply voltage, the source being connected to the base of the second transistor, and the gate being supplied with the control voltage. | 2015-09-24 |
20150270810 | AUDIO POWER AMPLIFIER - Improvements to U.S. Pat. No. 5,428,642 including use of a single clock providing a first frequency to drive a power supply and a second frequency, twice the first frequency, to dual channel pulse width modulators and audio amplifiers. The power supply is improved to provide enough output voltage that the amplifier stays below 90% modulation and the first frequency driver eliminates the dead band, thereby improving efficiency. Current limiting, even against shorts in the load, is provided by inductor inputs to the clipper circuits, where the inductors are in the magnetic fields of the output chokes. The audio amplifiers are isolated by optical couplers for the audio signal and by an optical coupler and isolation transformers for the clock. One clock amplifier supplies both amplifier channels. The pulse width modulator uses the optically isolated clock and receives clipped audio directly. Two channels fit in the space of one old channel. | 2015-09-24 |
20150270811 | OPERATIONAL AMPLIFIER AND DRIVING CIRCUIT - An operational amplifier, including an input stage circuit, an output stage circuit and a constant-gm circuit is provided. The input stage circuit provides a driving voltage according to an input voltage. Input terminals of the output stage circuit receive the driving voltage, and an output terminal of the output stage circuit provides an output voltage according to the driving voltage. The constant-gm circuit includes a constant-gm switch circuit, a current mirror circuit and a current mirror switch circuit. The constant-gm switch circuit controls the operation of the constant-gm circuit. The constant-gm switch circuit allows the current mirror circuit to operate during a transient time when the driving voltage is transited according to the driving voltage, so as to provide a compensated current for the input stage circuit. When the driving voltage is during a non-transient time, the current mirror switch circuit turns off the current mirror circuit. | 2015-09-24 |
20150270812 | Electronic Biasing Circuit for Constant Transconductance - An electronic biasing circuit provides a DC bias voltage to a circuit to be biased. The biasing circuit has a first transistor and a second transistor. A gate of the first transistor is connected to a gate of the second transistor and supplies the DC bias voltage. A source of the first transistor is connected to a supply reference voltage. A source of the second transistor is connected to the supply reference voltage via a resistor element. The currents flowing through the first and second transistor are forced to be equal. A third transistor is connected in series with the first transistor and a fourth transistor is connected in series with the second transistor. Currents flowing through the third and fourth transistors are forced to be equal. | 2015-09-24 |
20150270813 | DYNAMICALLY ADJUSTABLE POWER AMPLIFIER LOAD TUNER - An apparatus includes a power amplifier and a power amplifier load tuner. The power amplifier load tuner includes multiple input ports. A first input port of the power amplifier load tuner is selectively coupled to a corresponding power amplifier. The power amplifier load tuner has an adjustable impedance. | 2015-09-24 |
20150270814 | OPTICAL RECEIVER MODULE - An optical receiver module includes a light receiving element that converts a received light signal into an electric signal, a bias pad supplied with a bias power. The bias pad is included in the light receiving element and/or a carrier on which the light receiving element is mounted. The optical receiver module also includes a thin film resistor arranged in contact with the bias pad so as to connect in parallel to the bias pad. An electric resistance of the thin film resistor is larger than an electric resistance of the bias pad. The optical receiver module further includes an amplifier that amplifies the electric signal. | 2015-09-24 |
20150270815 | CURRENT FEEDBACK OUTPUT CIRCUIT - The current feedback output circuit includes first and second transistors. The current feedback output circuit includes a current amplifier that has a non-inverting input terminal, an inverting input terminal, a first output terminal and a second output terminal, an input impedance of the non-inverting input terminal being higher than an input impedance of the inverting input terminal, and flows a current obtained by amplifying the difference between a current of an input signal to the non-inverting input terminal and a current input to the inverting input terminal between the first output terminal and the second output terminal. The current feedback output circuit includes first to sixth current mirror circuits. The current feedback output circuit includes a current feedback circuit that supplies a current responsive to a voltage at the signal output terminal to the inverting input terminal. | 2015-09-24 |
20150270816 | PERFORMANCE OF OFF-CHIP CONNECTION FOR POWER AMPLIFIER - There is provided an amplifier arrangement comprising: a main amplifier connected to receive an input signal and generate an amplified version of the input signal; an additional amplifier, having a smaller geometry than the main amplifier, connected to receive the input signal and generate an amplified version thereof; and wherein the outputs of the main amplifier and the additional amplifier are combined to provide an amplified output. | 2015-09-24 |
20150270817 | LOW NOISE AMPLIFIER DRAIN SWITCH CIRCUIT - Embodiments include an apparatus, system, and method related to a switch circuit. Specifically, embodiments relate to a low noise amplifier (LNA) drain switch circuit that includes a first field effect transistor (FET) where the drain contact of the first FET is coupled with a gate contact of a second FET. The drain contact of the second FET may also be coupled with the gate of the second FET through a resistor. The source contact of the second FET may be coupled with a diode which may be coupled with an LNA. | 2015-09-24 |
20150270818 | GAIN CALIBRATION - Apparatus and methods calibrate one or more gain ranges for errors. A system can identify offset error and amplification error that occurs when the system transitions from amplifying an input signal by a first gain factor to amplifying the input signal by a second gain factor. To identify the amplification error, the system can compare the slope of the data signal in a source or reference gain range with the slope of the data signal in the destination gain range. To identify the offset error, the system can compare the amplitude of the data signal in a destination gain range with an expected value in the destination gain range. | 2015-09-24 |
20150270819 | Techniques for Distortion Reducing Multi-Band Compressor with Timbre Preservation - Distortion reducing multi-band compressor with timbre preservation is provided. Timbre preservation is achieved by determining a time-varying threshold in each of a plurality frequency bands as a function of a respective fixed threshold for the frequency band and, at least in part, an audio signal level and a fixed threshold outside such frequency band. If a particular frequency band receives significant gain reduction due to being above or approaching its fixed threshold, then a time-varying threshold of one or more other frequency bands are also decreased to receive some gain reduction. In a specific embodiment, time-varying thresholds can be computed from an average difference of the audio input signal in each frequency band and its respective fixed threshold. | 2015-09-24 |
20150270820 | TUNABLE FILTER USING VARIABLE IMPEDANCE TRANSMISSION LINES - Techniques for implementing tunable lumped element filters with transmission line sections. Transmission lines sections are used to implement one or more inductive or capacitance component elements of the filter. The filter is tunable by changing the dielectric constants of the transmission lines. In particular implementations there is an individual transmission line section for each lumped element component of a filter. Different filter circuits may be combined to provide a universal tunable filter assembly. | 2015-09-24 |
20150270821 | VARIABLE LOAD FOR REFLECTION-TYPE PHASE SHIFTERS - Methods and systems for phase shifting include a hybrid quadrature coupler having an input, an output, and two termination loads. Each termination load includes multiple terminations, each termination having a varactor; and one or more transmission lines separating the terminations. A control module is configured to determine a phase shift and gain to apply to the input and to independently control a capacitance of each varactor such that the output of the hybrid quadrature coupler is shifted by the determined phase shift relative to the input with the determined gain. | 2015-09-24 |
20150270822 | COMPONENT PACKAGE INCLUDING MATCHING CIRCUIT AND MATCHING METHOD THEREOF - Provided herein is a component package including a matching unit and a matching method thereof, the matching unit including: a substrate; a transmission line formed on the substrate, the transmission line being connected to a terminal of the component package; a bonding wire electrically connecting the transmission line and a central component; and a capacitor unit having a plurality of capacitors electrically connected with the transmission line by wiring connection, wherein an inductance of the matching unit is variable by adjusting a length of the bonding wire, and a capacitance of the matching unit is variable by increasing or reducing the number of capacitors electrically connected to the transmission line, of among the capacitors inside the capacitor unit, by extending or cutting off the wiring connection. | 2015-09-24 |
20150270823 | CONFIGURABLE BIAS TEE - Bias tees, according to certain embodiments of the present invention, include switches in the AC signal path, the DC signal path, or both, to improve the capability of the bias tees to be used for high impedance AC measurement, low current DC measurement, or both. Optical control of the switches, as well as control of the switches using a DC bias present within the AC signal input to the bias tee, is described. Including a set of diodes into the DC signal path, rather than a switch, provides enhanced capability of the bias tee to be used for high impedance AC measurements. | 2015-09-24 |
20150270824 | Electroacoustic Component and Method for the Production Thereof - An electroacoustic component is specified in which the disturbing contributions of undesired wave modes are reduced. For this purpose, a component comprises includes a piezo layer, an electrode layer and a separating layer. A main mode and a secondary mode are capable of propagation in the component. The separating layer has an opposite thickness dependence for the frequencies of the main mode and of the secondary mode. | 2015-09-24 |
20150270825 | RESONATOR ELEMENT, GYRO SENSOR ELEMENT, ELECTRONIC DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT - In order to provide a resonator element having high production efficiency and low impedance in a small size, the resonator element includes a base portion, and a driving arm which extends from the base portion and includes a through hole, in which the driving arm vibrates along an in-plane direction, and includes a plurality of broad portions of which a width in the in-plane direction is broad and a plurality of narrow portions of which a width in the in-plane direction is narrow which alternate with each other, and the through hole is disposed in the broad portion. | 2015-09-24 |
20150270826 | LATERALLY COUPLED RESONATOR FILTER HAVING APODIZED SHAPE - A laterally coupled resonator filter device includes a bottom electrode, a piezoelectric layer disposed on the bottom electrode, and a top contour electrode disposed on the piezoelectric layer. The top contour electrode includes first and second top comb electrodes. The first top comb electrode include a first top bus bar and multiple first top fingers extending in a first direction from the first top bus bar. The second top comb electrode includes a second top bus bar and multiple second top fingers extending in a second direction from the second top bus bar, the second direction being substantially opposite to the first direction such that the first and second top fingers form a top interleaving pattern providing an acoustic filter having an apodized shape. | 2015-09-24 |
20150270827 | System and Method for Filter Design and Usage Thereof - A method of designing a truncated filter includes designing a prototype filter with a target frequency response, and selecting a soft truncation function with a roll-off parameter specifying a rate in which the soft truncation function transitions to zero. The method also includes applying the soft truncation function to the prototype filter to produce a truncated filter, and storing the truncated filter to a memory. | 2015-09-24 |
20150270828 | ESTABLISHING A THERMAL PROFILE ACROSS A SEMICONDUCTOR CHIP - Embodiments of the present invention disclose a semiconductor structure and method for establishing a thermal profile across a semiconductor chip. In certain embodiments, the semiconductor structure comprises a through-silicon via formed in a first semiconductor chip having thermal control circuitry, wherein the through-silicon via is formed in a manner to be thermally coupled to the thermal control circuitry and a region of a second semiconductor chip, and wherein the through-silicon via conducts heat from the thermal control circuitry to the region. In other embodiments, the method comprises forming a through-silicon via in a first semiconductor chip having thermal control circuitry. The method also comprises forming the through-silicon via in a manner to be thermally coupled to the thermal control circuitry and a region of a second semiconductor chip, wherein the through-silicon via conducts heat from the thermal control circuitry to the region. | 2015-09-24 |
20150270829 | DRIVE CIRCUIT, INTEGRATED CIRCUIT DEVICE, AND METHOD FOR CONTROLLING CHARGE PUMP CIRCUIT - A drive circuit includes an output circuit having an output node that outputs, to a charge pump circuit, a drive clock signal for driving the charge pump circuit. The output circuit generates the drive clock signal based on a first clock signal and a second clock signal that is a signal whose voltage level does not change in a period during which the voltage level of the first clock signal changes, and controls, based on the second clock signal, an impedance of the output node so as to be up, in a period before the voltage levels of the drive clock signal changes. | 2015-09-24 |
20150270830 | THREE DIMENSIONAL INTEGRATED CIRCUIT AND METHOD FOR CONTROLLING THE SAME - A three dimensional integrated circuit includes a master circuit, a slave circuit, and a through-silicon via (TSV). The master circuit is configured to receive and process an input data, a data strobe signal (DQS) and an input command to output a writing data signal to a master die. The through-silicon via (TSV) is electrically coupled between the master circuit and the slave circuit. The master circuit is configured to transfer the writing data signal to a slave die through the TSV. Furthermore, a method for controlling a three dimensional integrated circuit is disclosed herein. | 2015-09-24 |
20150270831 | HIGH POWER PULSE GENERATOR HAVING A SUBSTANTIALLY QUADRANGULAR SHAPE WITH AN ADJUSTABLE SLOPE - A high-power pulse generator ( | 2015-09-24 |
20150270832 | RELAXATION OSCILLATOR - A relaxation oscillator shares charging current and comparator biasing current between just two current sources, thereby relaxing requirements on total supply current. The resulting reduction in power consumption has no adverse effect on the speed and accuracy of the oscillator. A switching arrangement directs charging and biasing currents between the two current sources and two charging capacitors and their associated comparators. | 2015-09-24 |
20150270833 | CLAMP CIRCUIT AND METHOD FOR CLAMPING VOLTAGE - The disclosure provides a clamp circuit and a method for clamping voltage. The clamp circuit includes: a first switch control unit, connected with the high-potential terminal of the first stage output of a comparator and configured to clamp the voltage of the high-potential terminal to V | 2015-09-24 |
20150270834 | METHOD FOR REDUCING NOISE USING LAYOUT SCHEME AND COMPARING DEVICE - A comparing device includes a first stage comparator and a second stage comparator serially coupled to the first stage comparator, wherein output lines of the second stage comparator are disposed to be overlapped with respective input lines of the second stage comparator. | 2015-09-24 |
20150270835 | PHASE MODULATION NOISE REDUCERE - A phase modulation (PM) noise reducer to reduce phase modulation noise of an oscillator, the PM noise reducer including: an amplitude modulation (AM) detector to receive a primary oscillator signal and to produce an AM detector signal based on the primary oscillator signal, the primary oscillator signal including a first phase modulation (PM) noise; a control circuit in electrical communication with the AM detector to receive the AM detector signal and to produce a control signal; a phase shifter in electrical communication with the control circuit to receive the primary oscillator signal and the control signal and to produce a secondary oscillator signal based on the primary oscillator signal and the control signal, the secondary oscillator signal comprising a second PM noise, wherein the second PM noise is less than the first PM noise. | 2015-09-24 |
20150270836 | CLOCK GLITCH AND LOSS DETECTION CIRCUIT - A conversion circuit measures individual period lengths for periods of a clock signal. Two of the measured period lengths are selected and compared. The comparison operates to compare a first period length against a threshold set as a function of the second period length. The result of the comparison is indicative of the presence of a clock error. If the threshold is set less than the second period length, the comparison functions to detect a clock glitch. If the threshold is set more than the second period, the comparison functions to detect a loss of clock. The result of the comparison may be used to control further handling of the clock signal by, for example, blocking logic state changes in the clock signal for the length of one period in response to the detection of the clock error. | 2015-09-24 |
20150270837 | Bidirectional Bipolar Junction Transistor Operation, Circuits, and Systems with Two Base Junctions Clamped By Default - Methods, systems, circuits, and devices for power-packet-switching power converters using bidirectional bipolar transistors (BTRANs) for switching. Four-terminal three-layer BTRANs provide substantially identical operation in either direction with forward voltages of less than a diode drop. BTRANs are fully symmetric merged double-base bidirectional bipolar opposite-faced devices which operate under conditions of high non-equilibrium carrier concentration, and which can have surprising synergies when used as bidirectional switches for power-packet-switching power converters. BTRANs are driven into a state of high carrier concentration, making the on-state voltage drop very low. | 2015-09-24 |
20150270838 | PROGRAMMABLE EQUALIZATION WITH COMPENSATED IMPEDANCE - Described is a chip comprising: a pull-up driver with a first impedance, the pull-up driver coupled to a node; a pull-down driver with a second impedance, the pull-down driver coupled to the node; and an equalizer coupled to the pull-up and pull-down drivers, wherein the equalizer is operable to be trained to deemphasize a signal driven on the node while maintaining the first and second impedances substantially constant. | 2015-09-24 |
20150270839 | Identification Circuit - An identification circuit is provided for generating a unique identification pattern for an object to be identified. The circuit includes at least one bistable closed circuit ring that includes a plurality of switching stages, each switching stage having at least two parallel internal signal delay paths, which are connected directly to one another on the input side and are selectable on the output side by at least one challenge bit of a challenge word applied to the circuit ring. Each internal signal path has a production-determined individual signal transit time, wherein a reset element which shifts a downstream switching stage temporarily into an unstable state is provided for each switching stage. The switching stages transition out of the respective unstable states on the basis of signal transit times, which may be read out as a response word that forms the unique identification pattern for the object to be identified. | 2015-09-24 |
20150270840 | CURRENT DETECTION CIRCUIT AND PILE-UP DETECTION CIRCUIT - A current detection circuit according to one embodiment includes a low-pass filter, a voltage-to-current converter circuit, and a comparator. The low-pass filter has a first terminal connected to a signal input terminal to which a signal current is input. The voltage-to-current converter circuit has a first terminal connected to a second terminal of the low-pass filter and has a second terminal connected to the signal input terminal. The comparator has a first input terminal and a second input terminal and outputs a signal according to a difference between a signal input through the first input terminal and a signal input through the second input terminal, the first input terminal being connected to the second terminal of the low-pass filter, and the second input terminal being connected to the second terminal of the voltage-to-current converter circuit. | 2015-09-24 |
20150270841 | AUTOMATED LOAD TRACKING AND SYSTEM TUNING MECHANISM FOR WIRELESS CHARGING - A system includes at least one active energy transfer coil and a first passive energy transfer coil. The active energy transfer coil is configured to couple with a power supply. The at least one active energy transfer coil has an active coupling range. The first passive energy transfer coil is magnetically coupled to the active energy transfer coil and is located within the active coupling range. The first passive energy transfer coil has a passive coupling range. The first passive energy transfer coil is configured to provide energy to a first device located within the passive coupling range and based on energy received from the at least one active energy transfer coil. | 2015-09-24 |
20150270842 | Circuit and Method for Adjusting Oscillating Frequency of an Oscillator - A circuit comprises an oscillator, a frequency divider and a comparator. The oscillator generates an oscillating signal (Fvco). The frequency divider is communicatively coupled to the oscillator, divides a frequency of the oscillating signal by a denominator and generates a divided signal. The comparator is communicatively coupled to the oscillator and the frequency divider, and is configured to obtain a first count of the divided signal (Fvco/N) within a predetermined time and a second count of a reference signal within the predetermined time; compare the first count with the second count, and generate a comparison result according to the first count and the second count. The oscillator is further configured to adjust the frequency of the oscillating signal according to the comparison result. | 2015-09-24 |
20150270843 | ATOMIC CELL, QUANTUM INTERFERENCE DEVICE, ATOMIC OSCILLATOR, ELECTRONIC DEVICE AND MOVING OBJECT - A gas cell includes alkali metal enclosed within an internal space configured by a trunk portion and window portions. An interior wall surface of the trunk portion includes a holding portion having a contact angle with liquid alkali metal of less than 90°. | 2015-09-24 |
20150270844 | ATOM CELL, QUANTUM INTERFERENCE DEVICE, ATOMIC OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT - A gas cell according to an embodiment includes an alkali metal, a space S | 2015-09-24 |
20150270845 | AD CONVERTER AND RECEIVING APPARATUS - It is intended to provide an AD converter capable of increasing its conversion accuracy. An AD converter is equipped with a clock generator which generates a first clock using a second clock and a comparator which includes a comparison circuit for comparing an input signal with a prescribed value in a first period of the first clock and a precharging circuit for precharging, in a second period of the first clock, an internal voltage to a prescribed value for the next comparison operation. The clock generator includes a replica circuit of the precharging circuit of the comparator. In the replica circuit of the precharging circuit, a precharging period from the start to the end of precharging is set as the second period of the first clock. | 2015-09-24 |
20150270846 | AD CONVERTER - A successive approximation type AD converter includes: a comparator comparing an analog input signal and a DA-converted comparison code; and a control circuit. When an output of the comparator settles before a limit time period has passed since the comparator started a comparison operation, the control circuit updates the comparison code on the basis of the settled output of the comparator. When the limit time period has passed before the output of the comparator settles, the control circuit updates the comparison code not on the basis of the present output of the comparator. | 2015-09-24 |
20150270847 | UNIFORM DISTRIBUTION DITHERING IN SIGMA-DELTA A/D CONVERTERS - Apparatus and methods for analog-to-digital converters are provided. In an example, a sigma-delta analog-to-digital converter (ADC) can include a modulator configured to receive an analog signal and a decimation filter configured to provide a digital representation of the analog signal using an output of the modulator. In certain examples, the modulator can includes an integrator and a comparator od quantizer coupled to an output of the integrator. The comparator, in certain examples, can be configured to receive a second signal from the output of the integrator and to receive a plurality of dither signals, the dither signals can be configured to prevent limit cycles of the sigma-delta ADC. | 2015-09-24 |
20150270848 | D/A CONVERSION APPARATUS, D/A CONVERSION METHOD AND ELECTRIC MUSICAL INSTRUMENT - In the present embodiment, quantizer output values including variation values corresponding to duty errors of pulse width data (PWM output signals) occurring by the difference of the pull-down/pull-up drive characteristics (drive capabilities) of a buffer are stored in advance in a feedback value memory in a quantizer as feedback values FBV | 2015-09-24 |
20150270849 | DATA COMPRESSION SYSTEMS AND METHODS - Data compression using a combination of content independent data compression and content dependent data compression. In one aspect, a system for compressing data comprises: a processor, and a plurality of data compression encoders wherein at least one data encoder utilizes asymmetric data compression. The processor is configured to determine one or more parameters, attributes, or values of the data within at least a portion of a data block containing either video or audio data, to select one or more data compression encoders from the plurality of data compression encoders based upon the determined one or more parameters, attributes, or values of the data and a throughput of a communications channel, and to perform data compression with the selected one or more data compression encoders on at least the portion of the data block. | 2015-09-24 |
20150270850 | ENTROPY ENCODING AND DECODING SCHEME - Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols s | 2015-09-24 |
20150270851 | LOW DENSITY PARITY CHECK CIRCUIT - Generally discussed herein are Low Density Parity Check (LDPC) circuit layouts. An example LDPC circuit can include combinational logic and a plurality of memory units. Each of the plurality of memory units can be electrically coupled to each other and the combinational logic, and the plurality of memory units can be situated in a ring-like configuration. | 2015-09-24 |
20150270852 | METHOD OF PROGRAMMING MEMORY DEVICE AND METHOD OF READING DATA OF MEMORY DEVICE INCLUDING THE SAME - A method of programming target memory cells of a nonvolatile memory device includes; programming the target memory cells using an incrementally adjusted program time, reading a code word stored by the target memory cells and determining a bit error rate (BER) associated with the target memory cells in view of the read code word, and if the BER exceeds an upper BER limit, increasing the program time by a unit time. | 2015-09-24 |
20150270853 | TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF - A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a Low Density Parity Check (LDPC) codeword by LDPC encoding based on a parity check matrix; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a plurality of modulation symbols, wherein the modulator is configured to map bits included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of each of the modulation symbols. | 2015-09-24 |
20150270854 | BIT INTERLEAVER FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING LENGTH OF 64800 AND CODE RATE OF 3/15 AND 1024-SYMBOL MAPPING, AND BIT INTERLEAVING METHOD USING SAME - A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 1024-symbol mapping. | 2015-09-24 |
20150270855 | DETERMINING SOFT DATA USING A CLASSIFICATION CODE - Apparatuses and methods for determining soft data using a classification code are provided. One example apparatus can include a classification code (CC) decoder and an outer code decoder coupled to the CC decoder. The CC decoder is configured to receive a CC codeword. The CC codeword includes a piece of an outer code codeword and corresponding CC parity digits. The CC decoder is configured to determine soft data associated with the piece of the outer code codeword, at least partially, using the corresponding CC digits. | 2015-09-24 |
20150270856 | DEVICE AND METHOD FOR PREDISTORTION - A device for predistortion and pulse shaping filtering in a communication system includes input scaling means arranged for scaling an applied transmit symbol with an adaptable input gain scaling factor, and a pulse shaping filter and a predistortion unit arranged for applying on the input gain scaled transmit symbol in either order a filtering operation and a non-linear predistortion operation to obtain a predistorted signal. The non-linear predistortion operation is represented by a set of parameter values selectable among a plurality of given sets of parameter values. The predistortion unit is arranged for selecting the set of parameter values exploiting a given performance measure. The device includes output scaling means arranged for scaling the predistorted signal with an output gain scaling factor to obtain a transmit signal. The adaptable input gain scaling factor and the output gain scaling factor are precalculated values corresponding to the selected set of parameter values. | 2015-09-24 |
20150270857 | METHOD AND APPARATUS FOR ELIMINATING INTERFERENCE AMONG TRANSMISSION CHANNELS OF TRANSMITTER - Embodiments of the present invention provide a method and an apparatus for eliminating interference among transmission channels of a transmitter. The method includes: generating a compensation parameter according to an output signal of an analog module on a transmission channel to be processed by the transmitter and an input signal of a digital module on each transmission channel among all transmission channels of the transmitter; generating a cancellation signal according to the compensation parameter and an input or output signal of a digital module on another transmission channel except for the transmission channel to be processed; and performing, according to the cancellation signal, interference elimination processing on the transmission channel to be processed. The method and apparatus according to the embodiments of the present invention avoid an increase of a transmitter product size, and improve an effect of eliminating interference among transmission channels. | 2015-09-24 |
20150270858 | COMMUNICATION CIRCUIT AND SEMICONDUCTOR DEVICE - A communication circuit, includes a receiver that provides communication by using a first transmission path and a second transmission path, the first transmission path being used to transmit a first signal, and the second transmission path being used to transmit a second signal; wherein the receiver includes a compensation circuit that compensates for an attenuation of a current when noise is superimposed on the first signal and on the second signal; wherein the compensation circuit includes a first compensation circuit; and wherein the first compensation circuit detects an electric current attenuation of the first signal when the noise is superimposed on the first signal, and compensates for the attenuation of the first signal by adding the detected electric current attenuation to the second signal. | 2015-09-24 |
20150270859 | TRANSMITTER HARMONIC CANCELLATION FOR CARRIER AGGREGATION/MULTIBAND OPERATION - A method and apparatus for cancelling, from signals received by a radio device in a first frequency band, interference generated by the radio device in the first frequency band when the radio device transmits simultaneously radio signals on at least a second frequency band. | 2015-09-24 |
20150270860 | Microelectronic Device with Integrated Energy Source - An apparatus including an electronic device having a plurality of substantially collocated components, the plurality of components including an integrated circuit (IC) chip, an energy supply operable to electrically power the IC chip, and an energy harvesting (EH) device operable to convert non-electrical energy to electrical energy supplied to the energy supply. A material substantially encloses at least a portion of at least one of the IC chip, the energy supply, and the EH device. | 2015-09-24 |
20150270861 | ACCESSORY FOR PROTECTING A PORTABLE ELECTRONIC DEVICE - An accessory includes a case body, a cover unit, and first and second coupling units. The case body is formed with a receiving space for receiving a portable electronic device. The cover unit is configured to be coupled removably to the case body for closing and opening the receiving space. The first coupling unit includes a data and charge connector for mating electrical connection with a data and charge socket of the portable electronic device, and a data and charge port connected to the data and charge connector. The second coupling unit includes a connector jack for mating electrical connection with an audio socket of the portable electronic device, and an audio port connected to the connector jack. | 2015-09-24 |
20150270862 | MOBILE PHONE ENCLOSURES - The present invention includes a mobile phone enclosure which provides a user access to the features of the mobile device within a protective enclosure further providing at least one appearance enhancing device. Such an enclosure may comprise a brush and/or comb and may provide at least one storage area for the appearance enhancing device. Such a protective enclosure may be for an electronic device having interactive controls and may comprise a protective shell substantially surrounding said electronic device when the electronic device is disposed in said shell, the electronic device being insertable in and removable from said shell by hand and having at least one opening in the shell substantially aligned with the interactive controls when the electronic device is disposed in the protective shell, and having at least one appearance enhancement device removabley disposed within the bounds of the shell. | 2015-09-24 |