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Duty Cycle patents



      
           
This page is updated frequently with new Duty Cycle-related patent applications. Subscribe to the Duty Cycle RSS feed to automatically get the update: related Duty RSS feeds. RSS updates for this page: Duty Cycle RSS RSS


Radio frequency carrier generation architecture

Broadcom

Radio frequency carrier generation architecture

Gm Global Technology Operations

Method of controlling the pressure of a turbocharger

Date/App# patent app List of recent Duty Cycle-related patents
04/16/15
20150105932
 Throttling to control thermal properties through a node patent thumbnailnew patent Throttling to control thermal properties through a node
The invention relates to a method for controlling thermal properties of a node. The method steps include calculating, using a temperature reading, a transmission duty cycle of the node, calculating a data amount capable of being transmitted with the transmission duty cycle, and transmitting, from a network interface of the node, a plurality of available data at a rate less than the data amount based on a priority of the plurality of available data..
Silver Spring Networks
04/16/15
20150103872
 Radio frequency carrier generation architecture patent thumbnailnew patent Radio frequency carrier generation architecture
A method of compensating carrier tone generation between duty cycles includes receiving a carrier frequency signal and a reference frequency signal, where the carrier frequency signal is mixed with a communication signal in a signal path. The method includes determining a first and second time differences between the carrier frequency signal and the reference frequency signal at respective clock edges of the reference frequency signal.
Broadcom Corporation
04/16/15
20150102724
 Thermal protection circuit for an led bulb patent thumbnailnew patent Thermal protection circuit for an led bulb
A light-emitting diode (led) bulb has an led within a shell. The led bulb includes a driver circuit for providing current to the led.
Switch Bulb Company, Inc.
04/16/15
20150101581
 Method of controlling the pressure of a turbocharger patent thumbnailnew patent Method of controlling the pressure of a turbocharger
A method and apparatus for controlling a boost pressure of a turbocharger is provided. The turbocharger includes a waste gate valve and a waste gate actuator.
Gm Global Technology Operations Llc
04/09/15
20150099929
 Endoscope illumination system patent thumbnailEndoscope illumination system
Imaging apparatus, including an imaging unit, which consists of an image sensor, configured to capture images of a region and to output image signals in response to the captured images and an illumination source, configured to illuminate the region. The unit further includes a driver circuit, which is coupled to receive a digital value indicative of a target luminous flux of the illumination source and to generate a pulse-width-modulated (pwm) signal to drive the illumination source with a duty cycle of the signal determined by the value.
Gyrus Acmi, Inc. (d.b.a. Olympus Surgical Technologies America)
04/09/15
20150097603
 Apparatus and  offset cancellation in duty cycle corrections patent thumbnailApparatus and offset cancellation in duty cycle corrections
An electronic device includes a clock configured to transmit a first clock signal and a second clock signal for operation of the electronic device; a duty cycle corrector coupled to the clock to correct a duty cycle of the first and second clock signals, the duty cycle corrector being configured to: assign and store a first duty cycle correction code in response to the first clock signal; assign and store a second duty cycle correction code in response to the second clock signal; calculate an offset code based on the first and second duty cycle correction codes; and negate the offset code from results of duty cycle correction operations.. .
Samsung Display Co., Ltd.
04/09/15
20150096902
 Identifying ionizable species with voltammetric duty cycles patent thumbnailIdentifying ionizable species with voltammetric duty cycles
A sensor system including devices and methods for determining the concentration of an analyte in a sample is described. Input signals including amperometric and voltammetric duty cycles of excitations and relaxations may provide a shorter analysis time and/or improve the accuracy and/or precision of the analysis.
Bayer Healthcare Llc
04/02/15
20150095666
 Constraining processor operation based on power envelope information patent thumbnailConstraining processor operation based on power envelope information
In an embodiment, a processor includes at least one core to execute instructions and a power controller coupled to the core. The power controller may include a power envelope control logic to receive a plurality of power envelope parameters and to enable a power consumption level of the processor to exceed a power burst threshold for a portion of a time window.
04/02/15
20150092461
 Control of a dc-ac inverter with unbalanced loading patent thumbnailControl of a dc-ac inverter with unbalanced loading
A three phase inverter consisting of three single phase legs using either switch mode or linear control is fed by a dc-dc converter to provide input output isolation. This requires that the dc-dc converter delivers equal positive and negative voltages to the single phase legs to allow each output to generate a high fidelity sine wave outputs to the load.
Ge Aviation Systems Llc
04/02/15
20150092454
 Interleaved forward converter with wide input and output dynamic range patent thumbnailInterleaved forward converter with wide input and output dynamic range
An interleaved forward voltage converter having a first inverter stage has a first transformer having a first secondary winding coupled to a filter inductor. A second converter stage has a second transformer having a second secondary winding coupled to the filter inductor.
Texas Instruments Incorporated
04/02/15
20150091631

Method and reference voltage calibration in a single-ended receiver


According to at least one example embodiment, a method and corresponding system, or circuit, for calibrating a reference voltage of a single-ended receiver, include applying a clock signal and a reference voltage signal as inputs to the differential amplifier of the single-ended receiver. The differential amplifier provides an output signal, the output signal is processed, and an indication of a duty cycle associated with an output signal of the amplifier is evaluated.
Cavium, Inc.
04/02/15
20150091475

Efficient energy recovery in disk drive during power loss


A back electromotive force of a rotating motor is converted into a voltage for a load by driving, in accordance with a duty cycle, at least one switching circuit that couples the back electromotive force to a load through a rectifying circuit. An error signal is generated that is a difference between the load voltage and a reference voltage.
Seagate Technology Llc
04/02/15
20150090593

Fluid conditioning


A fluid conditioning control system for driving one or more coils in a fluid conditioning system with a target load current to generate an alternating magnetic field directed at a fluid, the control system comprising a controller, a switch mode power supply circuit and a push pull ac drive circuit, wherein the controller is arranged to develop a first variable output having a frequency range that sweeps between a minimum frequency and a maximum frequency, and further arranged to develop a second variable output in the form of a duty cycle controlled signal, wherein the switch mode power supply circuit is arranged to develop a variable supply voltage to the ac drive circuit in response to the second variable output and a current sense circuit, and the ac drive circuit is arranged to develop a drive signal for developing a target load current in response to the first variable output and the variable supply voltage, thereby forming a current feedback loop.. .
Calclear Investments Pty Limited
03/26/15
20150084895

Load driving method, load driving circuit, and application devices thereof


The present invention discloses a load driving circuit, comprising a voltage differential generation circuit and a common mode voltage generation circuit; wherein the voltage differential generation circuit is configured to generate a driving voltage for driving a load; and the common mode voltage generation circuit is configured to: when the voltage differential generation circuit generates the driving voltage for driving the load, regulate the voltages output by a first output terminal and a second output terminal of the voltage differential generation circuit to the same voltage value. The present invention also provides a load driving method and application devices thereof.
Fairchild Semiconductor Corporation
03/26/15
20150084404

Bus pre-charge control using a buck converter


A vehicle is disclosed having a traction battery and an electrical impedance connected by a contactor. A pre-charge circuit is disclosed that controls current flow from the traction battery through the pre-charge circuit to the electrical impedance to increase voltage at the electrical impedance such that as the voltage approaches a voltage of the traction battery, a duty cycle of the pre-charge circuit approaches a maximum value and a current through the pre-charge circuit approaches a minimum value.
Ford Global Technologies, Llc
03/19/15
20150082076

Dynamic clock regulation


A clock frequency is controlled by determining a cumulative duty cycle according to a ratio of a cumulative time, during an interval, that the clock frequency has a frequency greater than or equal to a design frequency threshold value to a duration of the interval. A frequency of the clock frequency is controlled to be a first frequency value when the cumulative duty cycle is less than a first duty cycle threshold; and controlled to be a second frequency value substantially less than the first frequency value when the cumulative duty cycle is greater than a second duty cycle threshold.
Marvell World Trade Ltd.
03/19/15
20150078197

Apparatus and asynchronous peer-to-peer discovery


Apparatus and method are provided for performing asynchronous discovery among multiple peers in a wireless peer-to-peer (p2p) network. In an aspect of the disclosure, a peer selects a duty cycle c corresponding to a probability that the peer is in either a scanning state or an advertising state, rather than a sleeping state, wherein the duty cycle c is selected in accordance with a power consumption of the peer.
Qualcomm Incorporated
03/19/15
20150078101

Methods and apparatuses for alternate clock selection


Apparatuses and methods are disclosed, such as those including an oscillator circuit that generates an alternate clock. A multiplexing circuit can be coupled to the alternate clock and an input clock.
Micron Technology, Inc
03/19/15
20150078041

Harmonic control method and circuit for flyback switching power supply


In one embodiment, harmonic control method for a flyback switching power supply, can include: (i) generating a sense voltage signal based on an output signal of the flyback switching power supply; (ii) generating a first compensation signal by determining and compensating an error between the sense voltage signal and a reference voltage; (iii) generating a second compensation signal by regulating the first compensation signal based on a duty cycle of a main power switch in the flyback switching power supply; and (iv) generating a control signal based on the second compensation signal and a triangular wave signal, to control the main power switch such that the output signal is substantially constant and an input current follows a waveform variation of an input voltage of the flyback switching power supply.. .
Silergy Semiconductor Technology (hangzhou) Ltd
03/19/15
20150078036

Power converters for wide input or output voltage range and control methods thereof


A power converter topology is adapted for efficiency according to input voltage, output voltage or output current conditions. Topology adaptation is achieved by control responsive to the input and output operating conditions, or to one or more external control signals.
Delta Electronics, Inc.
03/19/15
20150077892

Protection circuit and related method


A protection circuit is connected between a power supply for providing a working voltage and a load. The protection circuit comprises an interface, a detecting module connected to the interface, a control module, and a switch module.
Hon Hai Precision Industry Co., Ltd.
03/19/15
20150077187

Dynamic error vector magnitude duty cycle correction


Aspects of this disclosure relate to dynamic error vector magnitude (devm) compensation. In one embodiment, an apparatus includes an amplifier, a low pass filter, and a bias circuit.
Skyworks Solutions, Inc.
03/19/15
20150077079

Multiphase buck converter with dynamic phase firing


Methods, devices, and circuits are disclosed for a multiphase buck converter with dynamic phase firing that moderates phase output current. In one example, a method includes evaluating a current of a first phase output of the multiphase buck converter.
Infineon Technologies Austria Ag
03/19/15
20150077005

Three-level led bulb microprocessor-based driver


An led bulb is described, comprising leds within a shell and a driver circuit to operate the leds at a plurality of brightness levels. The driver circuit comprises first and second inputs to receive ac, a neutral input, a converter circuit, first and second rectifier circuits, a detector circuit, and a processing circuit.
Switch Bulb Company, Inc.
03/19/15
20150076999

Modifying duty cycles of pwm drive signals to compensate for led driver mismatches in a multi-channel led system


An led (light emitting diode) controller comprises a first led driver to generate a first pwm (pulse width modulation) drive signal to turn on or turn off, respectively, a first current through a first led string. Additionally, the led controller comprises a compensation circuit to generate the first pwm drive signal responsive to a first duty set signals.
Dialog Semiconductor Inc.
03/19/15
20150076902

Method of forming a power supply controller and structure therefor


In one embodiment, a power supply controller may be formed including configuring the power supply controller to use an error signal and a ramp signal to control a duty cycle of a switching control signal that is configured to control first and second switches to charge a battery, and configuring the power supply controller to selectively offset a dc value of the ramp signal responsively to detecting the adapter current is greater than a first value wherein offsetting the dc value of the ramp signal changes the duty cycle of the switching control signal to supply current from the battery to a load.. .
Semiconductor Components Industries, Llc
03/19/15
20150076002

Apparatus and treating aqueous solutions and contaminants therein


The present disclosure is generally directed to devices and methods of treating aqueous solutions to help remove or otherwise reduce levels, concentrations or amounts of one or more contaminants. The present disclosure relates to a method of which includes the application of a constant current or a pulse width modulation duty cycle to at least one counterelectrode (e.g.
Aquamost, Inc.
03/12/15
20150074467

Method and system for predicting storage device failures


The invention pertains to a method and information handling system (ihs) for predicting storage device failures. An embodiment of the method of the present invention begins by obtaining data regarding input and output of the at least one storage device.
Dell Products, Lp
03/12/15
20150073346

Disposable surgical suction/irrigation trumpet valve tube cassette


The present invention provides a disposable trumpet valve tube cassette assembly, as well as, a surgical irrigation instrument that includes a probe assembly, a pump, a removable pump cartridge, and a socket. The probe assembly provides passage of fluids for irrigating the body interior and for evacuating matter from the body interior.
Allegiance Corporation
03/12/15
20150072721

Adjusting a duty cycle of wireless transmissions


A duty cycle of wireless transmissions of the electronic device is adjusted based on wireless transmission activity. The adjusting considers the electronic device to be idle if the electronic device wirelessly transmits at a power level less than a non-zero power threshold..
03/12/15
20150072084

Method for producing a coated substrate


The subject of the invention is a process for obtaining a substrate provided on at least one portion of at least one of its sides with a coating, comprising a step of depositing said coating on said substrate, then a step of heat treatment of said coating using a pulsed or continuous laser radiation focused on said coating in the form of at least one laser line, the wavelength of which is within a range extending from 400 to 1500 nm, said heat treatment being such that a relative displacement movement is created between the substrate and the or each laser line, the speed of which is at least 3 meters per minute, the or each laser line having a beam quality factor (bpp) of at most 3 mm·mrad and, measured at the place where the or each laser line is focused on said coating, a linear power density divided by the square root of the duty cycle of at least 200 w/cm, a length of at least 20 mm and a width distribution along the or each line such that the mean width is at least 30 micrometers and the difference between the largest width and the smallest width is at most 15% of the value of the mean width.. .
Saint-gobain Glass France
03/12/15
20150071464

Methods and circuits to reduce pop noise in an audio device


A class d amplifier receives and amplifies a differential analog signal which is then differentially integrated. Two pulse width modulators generate pulse signals corresponding to the differentially integrated analog signal and two power units generate output pulse signals.
Stmicroelectronics (shenzhen) R&d Co. Ltd.
03/12/15
20150071241

Apparatus and transmitting muting information, and acquiring channel state using same


The present disclosure relates to an apparatus and a method for transmitting muting information in a wireless communication system, and to an apparatus and a method for acquiring channel state using same. In an exemplary embodiment, muting information includes: a first data field, having a serving cell for receiving from peripheral cells in a multi-cell environment, at least one of a csi-rs pattern, the number of csi-rs antenna ports, a csi-rs duty cycle, and csi-rs transmission subframe offset information, and using same for expressing the cycle and the offset of muting subframes, which pertain to information on a resource block that can generate interference between the peripheral cells and csi-rs; and a second data field for expressing a specific muting pattern, which must be muted within the muting subframes, having either 12 bits or 28 bits that display muting application in a bitmap format..
Pantech Co., Ltd.
03/05/15
20150067358

Injection locked phasing for a peak-valley multiphase regulator


A system and method capable of injection locking the phases of a peak-valley multiphase regulator includes comparing an output voltage error signal with a ramp control signal and providing a corresponding slope reset signal, using transitions of the slope reset signal to develop a equally spaced high side ramp signals and equally spaced low side ramp signals, and injecting a corresponding one of the high side signals and a corresponding one of the low side ramp signals into each of the phases which correspondingly develop equally spaced pulse control signals for multiphase operation. Such injection locking allows the additional phases to operate out of phase with the first phase and allows operation at high duty cycles..
Intersil Americas Llc
03/05/15
20150065194

Frequency and phase conversion circuit, wireless communication unit, integrated circuit and method therefor


A frequency and phase conversion circuit and wireless communication unit for supporting a plurality of different duty cycles is described. The frequency and phase conversion circuit comprises: a local oscillator module comprising a plurality of frequency conversion modules arranged to receive at least one input clock signal wherein a plurality of phases of the at least one input clock signal are selectable to support a plurality of different duty cycle clock signals; and at least one frequency conversion module comprising a plurality of mixer arrangements configured to receive at least one baseband input signal and the selected plurality of phases of the at least one input clock signal and output a frequency and phase converted representation of the at least one baseband input signal, wherein at least one of the plurality of mixer arrangements is re-used in a plurality of the selectable supportable duty cycles..
Mediatek Singapore Pte. Ltd.
03/05/15
20150063821

Apparatus and efficient two-way optical communication where transmitter may interfere with receiver


An two-way optical communication apparatus, including a transmit element, a receive element, and a transceive processor. The transmit element is coupled to a light pipe, and transmits a first signal.
Revolv Inc.
03/05/15
20150063131

Effecting change to transmit duty cycle of wlan transceiver


An apparatus has a wireless local area network (wlan) transceiver and one or more sensors. The sensors are monitored.
Blackberry Limited
03/05/15
20150061614

Method and calculating an average value of an inaccessible current from an acessible current


In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulated (pwm) signal representing a duty cycle of the power converter.
Texas Instruments Incorporated
03/05/15
20150061577

Wireless power transmitters with wide input voltage range and methods of their operation


The embodiments described herein provide a power transmitter for wireless charging of an electronic device and methods of its operation. The power transmitter uses an inverter configured to generate a square wave from a potentially wide ranging dc input voltage.
Freescale Semiconductor, Inc.
03/05/15
20150061528

Driver circuit using dynamic regulation and related techniques


An led driver circuit selects a regulated voltage value for use in driving one or more leds based on dimming duty cycle. In some embodiments, the regulated voltage value may be selected in accordance with a function that decreases monotonically with increasing dimming duty cycle.
Allegro Microsystems, Llc
03/05/15
20150061522

Method and calculating an average value of an inaccessible current from an acessible current


In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulation (pwm) signal representing a duty cycle of the power converter.
Texas Instruments Incorporated
03/05/15
20150061521

Method and calculating an average value of an inaccessible current from an acessible current


In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulation (pwm) signal representing a duty cycle of the power converter.
Texas Instruments Incorporated
03/05/15
20150059358

Controlling thermoelectric cooling device and heat-dissipating module employing same


A controlling method for a thermoelectric cooling device is provided. The thermoelectric cooling device has a cold side and a hot side.
Delta Electronics, Inc.
02/26/15
20150055375

Controlling a switched mode power supply with maximised power efficiency


A control circuit, that controls the duty cycle of a switched mode power supply, comprises a reference voltage generator that, responsive to the input voltage exceeding a threshold value, generates a predetermined reference signal. Responsive to the input voltage not exceeding the threshold value, the reference voltage generator receives a signal indicative of an input voltage of the switched mode power supply and generates a variable reference signal dependent upon the input voltage.
Telefonaktiebolaget L M Ericsson (publ)
02/26/15
20150054430

Method and circuit arrangement for limiting peak currents and the slope of the current edges


A method for limiting peak currents, particularly depending on a charge quantity provided by a voltage source, and the maximum pitch of the current flanks of an electric motor for an electrohydraulic motor vehicle brake system, particularly a pump motor, controlled by pulse width modulation, wherein a change to an actual duty cycle of the pwm is made by a first duty cycle of the pwm on a second duty cycle at runtime, wherein the change takes place according to a positive or negative pitch value calculated and/or changeable at runtime. The invention further describes an electronic circuit arrangement for the implementation of a method for limiting peak currents and the maximum pitch of current flanks..
Continental Teves Ag & Co. Ohg
02/26/15
20150053661

Welding power supply with digital controller


A welding power supply including power conversion circuitry adapted to receive a primary source of power, to utilize one or more power semiconductor switches to chop the primary source of power, and to convert the chopped power to a welding output is provided. The provided welding power supply includes a pulse width modulated (pwm) digital controller including gate drive circuitry that generates a pwm output signal that controls the switching of the one or more power semiconductor switches.
Illinois Tool Works Inc.
02/26/15
20150052905

Pulse width modulation for control of late lean liquid injection velocity


Systems and methods for pulse-width modulation of late lean liquid injection velocity can be provided by certain embodiments of the disclosure. In one embodiment, a gas turbine combustor utilizing a late lean injection scheme can be provided, wherein the combustor can include a combustor liner and a transition piece.
General Electric Company
02/19/15
20150051560

Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination


Negative pressure wound therapy apparatuses and dressings, and systems and methods for operating such apparatuses for use with dressings are disclosed. In some embodiments, controlling the delivery of therapy can be based on monitoring and detecting various operating conditions.
Smith & Nephew Plc
02/19/15
20150051463

Oximetry signal, pulse-pressure correlator


A system and method are provided for using an oximeter to take blood pressure readings for an extended period of time. Calibration of the oximeter for this purpose requires use of a sphygmomanometer to determine a sequence of blood pressure readings taken for a patient over a sphygmomanometer duty cycle.
02/19/15
20150049519

Single switch infinite-level power inverters


An electrical power converter includes a circuit with a single switching transistor that is electrically connected to a direct current power source, a first inductor-capacitor (lc) circuit electrically connected to the single switching transistor, a second lc circuit electrically connected to the first lc circuit and configured to provide an output signal to a load. A controller is operatively connected to the single switching transistor.
Indiana University Research & Technology Corporation
02/19/15
20150048871

Reference-frequency-insensitive phase locked loop


A phase locked loop may be operable to generate, utilizing a frequency doubler, a reference clock signal whose frequency is twice a frequency of a crystal clock signal and is keyed on both rising and falling edges of the crystal clock signal. The phase locked loop may enable usage of both rising and falling edges of the crystal clock signal, based on the generated reference clock signal.
Maxlinear, Inc.
02/19/15
20150048808

Voltage boosting circuit capable of modulating duty cycle automatically


The present invention relates to a voltage boosting circuit capable of modulating duty cycle automatically, which comprises an inductor, a switching module, and a control circuit. The inductor is coupled to an input for receiving an input power.
Sitronix Technology Corp.
02/19/15
20150047345

Method and system of cleaning a control valve


A method and system of cleaning a turbocharger bypass control valve, the control valve being operable to vary the position of a bypass valve and thereby vary the amount of flow bypass across a turbine and/or compressor of a turbocharger for an engine. The method comprises: determining whether the control valve may require cleaning; adjusting the duty cycle of the shuttle so as to increase a flow of fluid through the control valve and clean the control valve; and adjusting a throttle position of the engine and thus the engine torque output to compensate for the adjustment in the amount of boost provided by the turbocharger..
Ford Global Technologies , Llc
02/19/15
20150047344

Engine control method and system


The present invention provides an engine control method, for each duty cycle of the engine, said method comprises: receiving a boost pressure of an engine turbocharger; receiving an engine speed; looking up a static control parameter lookup table according to the engine speed and boost pressure so as to select a control parameter indicating the air flow requirement; and sending the selected control parameter to an engine control unit so as to control the engine using the air flow requirement indicated by said control parameter.. .
Honeywell International Inc.
02/12/15
20150043627

Noise detection circuit, delay locked loop and duty cycle corrector including the same


A noise detection circuit includes a first delay unit suitable for delaying a periodic wave to output a delayed periodic wave, a first divider unit suitable for dividing the delayed periodic wave to output a first periodic wave, a second divider unit suitable for dividing the periodic wave to output a divided periodic wave, a second delay unit suitable for delaying the divided periodic wave to output a second periodic wave, and a detection unit suitable for comparing the first periodic wave with the second periodic wave and outputting a noise detection signal.. .
Sk Hynix Inc.
02/12/15
20150043161

Thermal energy storage, dissipation and emi suppression for integrated circuits using porous graphite sheets and phase change material


Mobile platforms and methods may provide for an integrated circuit such as a system on chip (soc), a first heat spreader thermally coupled to the integrated circuit and a phase change material configuration thermally coupled to the first heat spreader. The integrated circuit may include logic to operate the integrated circuit in a performance burst mode according to a duty cycle, wherein the performance burst mode causes a phase change material to enter a liquid state within a graphite matrix of the phase change material configuration..
02/12/15
20150041659

System and return beam metrology with optical switch


Extreme ultraviolet light (euv) is produced in a laser-produced plasma (lpp) euv light source when laser light strikes a target. Measuring reflected light from the target by a return beam diagnostics (rbd) module provides data on euv production, including but not limited to target position, target focus, target shape, and target profile.
Cymer, Llc
02/05/15
20150036833

Method and device for testing a loudspeaker arrangement


A loudspeaker arrangement includes a loudspeaker and a trigger circuit for electrically triggering the loudspeaker. The loudspeaker has a loudspeaker diaphragm for generating an acoustic signal.
02/05/15
20150036123

Apparatus for sensor with improved power consumption and associated methods


A sensor includes a coil suspended in a magnetic field, and a light source to produce a light output in response to a current, wherein a duty cycle and/or pulse-repetition frequency of the current is configurable. The sensor further includes an optical detector to use the light output of the light source to detect displacement of the coil in response to a stimulus..
Silicon Audio Seismic, Llc
02/05/15
20150035876

Independent color stretch in color-sequential displays


Independent color stretch is an improved method for “stretching” the color sequence utilized in color-sequential displays using switchable light sources, such as led or laser, to match the frame rate of the video source. It utilizes a stretch factor that is directly proportional to the sequence duration to simplify the calculation of stretch factors and allow them to be combined.
Brass Roots Technologies, Llc
02/05/15
20150035570

Clock doubler including duty cycle correction


Exemplary embodiments are related to a clock doubler. A device may include a duty cycle correction circuit configured to receive an input clock signal and convey a corrected clock signal.
Qualcomm Incorporated
02/05/15
20150035504

Switching regulator input current sensing circuit, system, and method


A buck switching regulator includes first buck switching regulator circuitry is operable to generate a first output voltage from an input voltage and operable to generate a first sensed voltage having a value that is proportional to an output current being provided by the first buck switching regulator circuitry. The first buck switching regulator circuitry receives an input current and operates at a first duty cycle determined by a duty cycle signal.
Intersil Americas Llc
02/05/15
20150035363

Performance and isolation improvements for digitally controlled ac attenuation and protection circuits


A protection and attenuation circuit for sensitive ac loads is described. The circuit provides ac power protection and attenuation utilizing high-efficiency switch-mode techniques to attenuate an ac power signal by incorporating a bidirectional, transistorized switch driven from a pulse width modulation signal, pwm.
Butler Engineering Llc
02/05/15
20150034820

Continuous operation high speed ion trap mass spectrometer


The present disclosure discusses a system and method for continuous operation of an ion trap mass spectrometer. The described system does not introduce ions into the ion trap in distinct trapping phase, rather the described system continuously injects ions into the ion trap while continuously scanning out the ions.
Mini-mass Counseling
02/05/15
20150034818

Discontinuous atmospheric pressure interface


A method of interfacing atmospheric pressure ion sources, including electrospray and desorption electrospray ionization sources, to mass spectrometers, for example miniature mass spectrometers, in which the ionized sample is discontinuously introduced into the mass spectrometer. Discontinuous introduction improves the match between the pumping capacity of the instrument and the volume of atmospheric pressure gas that contains the ionized sample.
Purdue Research Foundation


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Duty Cycle topics: Duty Cycle, Computer Program, Distributed, Buffer Circuit, Integrated Circuit, Differential Amplifier, Duty Cycle Correction, Ultrasonic, Reference Voltage, Thermostat, Modulation, Wireless Power, Calculator, Control Unit, Bridge Inverter

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