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336 results about "Power modulation" patented technology
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Device for Smoothing Fluctuations in Renewable Energy Power Production Cause by Dynamic Environmental Conditions
InactiveUS20150019034A1Reduce decreaseLoss of revenueSolar heating energySolar heat simulation/predictionPower modulationPower grid
A renewable energy generator imposes costs on a power grid from rapid fluctuations in output. A device is disclosed that collects data on renewable power production, meteorological and other information, forecasts short timescale renewable power production then mitigates costs incurred by power fluctuations by modulating the power output, while maximizing power production revenue. Mitigation may be effected by an AC / DC inverter, an energy storage system, demand response or a FACTS device. The magnitude and costs for modulating response required from energy storage, FACTS or other power modulation equipment is thereby reduced.
Owner:GONATAS CONSTANTINE
Acousto-optic deflector applications in laser processing of dielectric or other materials
ActiveUS20100301023A1Effective expansionIncrease speedWelding/soldering/cutting articlesMetal working apparatusPower modulationAcousto optic deflector
A laser processing system for micromachining a workpiece includes a laser source to generate laser pulses for processing a feature in a workpiece, a galvanometer-driven (galvo) subsystem to impart a first relative movement of a laser beam spot position along a processing trajectory with respect to the surface of the workpiece, and an acousto-optic deflector (AOD) subsystem to effectively widen a laser beam spot along a direction perpendicular to the processing trajectory. The AOD subsystem may include a combination of AODs and electro-optic deflectors. The AOD subsystem may vary an intensity profile of laser pulses as a function of deflection position along a dither direction to selectively shape the feature in the dither direction. The shaping may be used to intersect features on the workpiece. The AOD subsystem may also provide rastering, galvo error position correction, power modulation, and / or through-the-lens viewing of and alignment to the workpiece.
Owner:ELECTRO SCI IND INC
Plasma etching apparatus and method
ActiveUS20080110859A1High selectivityIncrease etch rateElectric discharge tubesDecorative surface effectsPower modulationEngineering
An upper electrode and a lower electrode are disposed opposite to each other in a process container configured to be vacuum-exhausted. The upper electrode is connected to a first RF power supply configured to apply a first RF power for plasma generation. The lower electrode is connected to a second RF power supply configured to apply a second RF power for ion attraction. The second RF power supply is provided with a controller preset to control the second RF power supply to operate in a power modulation mode that executes power modulation in predetermined cycles between a first power set to deposit polymers on a predetermined film on a wafer and a second power set to promote etching of the predetermined film on the wafer.
Owner:TOKYO ELECTRON LTD
Electrosurgical medical device with power modulation
An electrosurgical ablation device provides pulse width modulated DC power to a heating segment in a catheter for use in providing treatment. In some embodiments the DC power to be modulated is sourced from an AC / DC power converter coupled to a source of AC power. In some embodiments the DC power to be modulated is sourced from a battery. In some embodiments the device switchably selects for modulation DC power sourced from either the AC / DC power converter or the battery, for example based on availability of power from the AC / DC power converter.
Owner:TYCO HEALTHCARE GRP LP
Power control structure for electric power tools
ActiveUS20110278035A1Optimal Control StructureAdjusting operationOperator-supported drilling machinesAC motor accelaration/decelaration controlPower modulationElectric power system
A power control structure aims for an electric power tool which gets an input power from an electric power source and converts the input power to a driving power to drive an electric motor. The electric power tool further includes a manual control means, a magnetic control element and a power modulation circuit. The manual control means includes a trigger portion movable by depressing of a user and a magnetic element movable with the trigger portion. The magnetic control element outputs an output control signal in proportion to alterations of a magnetic field caused by movements of the magnetic element. The power modulation circuit gets the input power and modulates to the driving power controlled by the output control signal to drive the electric motor. Thus by depressing the trigger portion, output power of the electric motor can be controlled to provide precise control of rotational speed and torque alterations.
Owner:XPOLE PRECISION TOOLS
Method and Apparatus for Low Power Modulation and Massive Medium Access Control
ActiveUS20090051496A1Save powerIncrease processing gainElectric signal transmission systemsTime-division multiplexPower modulationCommunications system
An ultra low power, low complexity, low collision, deterministic modulation method that also works as a massive medium access mechanism for communication systems is based on positioning data in a communication resource space, such as time and frequency, such that the position of a symbol in that space determines its value and its access to the medium. The number base of the symbol is determined by the size of the subset of the resource space it is positioning itself in and, thereby, a few sparsely located symbols can convey a large value, while the remainder of the space can be simultaneously and massively used by other sparsely resource using members of the network.
Owner:TAGARRAY
Frequency modulation characteristic control policy for doubly-fed wind turbine generator-energy storage system by simulating synchronous machine
ActiveCN106374496ARealize two-way adjustmentReduce the cost of energy storage configurationSingle network parallel feeding arrangementsEnergy storageElectricityPower modulation
The invention discloses a frequency modulation characteristic control policy for a doubly-fed wind turbine generator-energy storage system by simulating a synchronous machine. The control policy is characterized by comprising the steps of establishing the doubly-fed wind turbine generator-energy storage system considering self wind power frequency modulation capacity; enabling the doubly-fed wind turbine generator-energy storage system to simulate capacity configuration of the frequency modulation characteristic of the synchronous machine, and enabling the doubly-fed wind turbine generator-energy storage system to perform frequency modulation control policy analysis and the like; establishing the doubly-fed wind turbine generator-energy storage system by analysis of the frequency modulation requirement of the system, combination of the self frequency modulation capacity of the doubly-fed wind turbine generator, and reasonable configuration of the energy storage capacity; reasonably allocating the power modulation capacity according to different frequency response time of the wind turbine generator and the energy storage system to endow the doubly-fed wind turbine generator-energy storage system with frequency response capability which is similar to that of a conventional synchronous generator so as to realize bidirectional frequency modulation; and by fully utilizing the complementary advantages of the wind turbine generator and the energy storage system under different air speeds in the aspects of frequency response speed, available frequency modulation energy and the like, lowering the energy storage configuration cost. The control policy has the advantages of scientific and reasonable property, high applicability, excellent effect and the like.
Owner:NORTHEAST DIANLI UNIVERSITY
Plasma processing method and plasma processing apparatus
ActiveUS20140305905A1Electric discharge tubesDecorative surface effectsHigh frequency powerPower modulation
At a time point T0 when starting a process, a duty ratio of a high frequency power RF1 to which power modulation is performed is set to be an initial value (about 90%) which allows plasma to be ignited securely under any power modulating conditions. At the substantially same time of starting the process, the duty ratio of the high frequency power RF1 is gradually reduced from the initial value (about 90%) in a regular negative gradient or in a ramp waveform. At a time point t2 after a lapse of a preset time Td, the duty ratio has an originally set value Ds for an etching process. After the time point t2, the duty ratio is fixed or maintained at the set value Ds until the end (time point T4) of the process.
Owner:TOKYO ELECTRON LTD
Apparatuses and related methods for modulating power of a wireless power receiver
ActiveUS20140265610A1Near-field transmissionBatteries circuit arrangementsElectric power transmissionPower modulation
A wireless power enabled apparatus may comprise a wireless power receiver that includes a receive coil configured to generate an AC signal responsive an electromagnetic field, a rectifier including a plurality of switches configured to receive the AC signal and generate an output power signal, and control logic configured to control the plurality of switches to cause the rectifier to modulate the output power signal. The control logic may be configured to control the plurality of switches within the rectifier to have an overlap delay that modulates at least one parameter of the wireless power receiver. A method of operating a receiver side of a wireless power transfer system comprises generating an output power signal including a rectified voltage and a rectified current responsive to receiving a wireless power signal, and controlling a rectifier according to at least one mode including a power modulation mode modulating the output power signal.
Owner:INTEGRATED DEVICE TECH INC
Alternator system
InactiveUS20030039130A1Triple power capabilityIncrease speedBatteries circuit arrangementsAc-dc conversion without reversalPower capabilityReduction drive
An alternator system (50, 52) that, in one aspect, utilizes a Lundell style alternator that is augmented by power electronic switching components (62) in the output section. In one embodiment, some of these power switching embodiments employ a scaling of stator turns and wire size to achieve the superior performance at higher speeds. The alternator system provides significantly enhanced power capability above idle as compared with classical Lundell alternator systems using Lundell alternators of the same size that are designed with the same power capability at idle. In one preferred dual voltage embodiment, a power switch (semi-conductor) connects the alternator output directly to the low voltage load at low engine speeds and when the power switch is "opened" at higher speeds, the alternator's power is channeled to the higher voltage. In a 14-volt / 42-volt dual-voltage system, this arrangement provides triple the alternator's power capability at high speeds as compared to a conventional unenhanced capabilities of the altenator system of the present invention are accomplished without increasing the alternator size or required current capacity and without using high frequency semiconductor power modulation (106).
Owner:ECOAIR
Method for driving alternate current of light emitting diode and operating voltage thereof
InactiveUS20080258643A1Flexible designElectrical apparatusElectroluminescent light sourcesPower modulationWave shape
A method for driving AC of light emitting diodes includes an AC obtaining measure for obtaining an AC sine wave signal having positive and negative half-cycle waveforms; a power modulation measure for modulating the AC sine wave signal and an impedance of first and second LED groups according to at least two opposite conducting directions connected in parallel to change the positive half-cycle waveform to comply with an operation range of the positive half-cycle driving signal of the first LED group and modulate the negative half-cycle waveform to comply with an operation range of the negative half-cycle driving signal of the second LED group; and a power driving measure for driving the first and second LED groups by the positive and negative half-cycle driving signals, and the first and second LED groups are driven sequentially according to the operating cycles of the positive and negative half-cycle driving signals respectively.
Owner:ZIPPY TECH
Method for depositing porous films
InactiveUS20060040507A1Facilitate and optimally control codepositionFacilitate and optimally control and selective silicon removal stepSolid-state devicesSemiconductor/solid-state device manufacturingPower modulationSilicon dioxide
A processing method for depositing porous silica and doped silica films is provided. The method uses a cyclic scheme wherein each cycle comprises first codepositing silica with silicon, then selectively removing the silicon to form a porous structure. In a preferred embodiment, the codeposition is carried out by plasma enhanced chemical vapor deposition. The reagent feed stream comprises a mixture of codeposition reagents and a selective silicon removal reagent. RF power modulation is used to control the codeposition and the selective silicon removal steps with the later proceeds whenever the RF power is turned off or reduced to a low level. A porous film with highly uniform small pores and a desired porosity profile can be obtained with this method. This method is advantageous for forming a broad range of low-k dielectrics for semiconductor integrated circuit fabrication. The method is also advantageous for forming other porous films for other applications.
Owner:MAK CECILIA Y +1
Methods and apparatus for thermal management of an integrated circuit die
An integrated, on-chip thermal management system providing closed-loop temperature control of an IC device and methods of performing thermal management of an IC device. The thermal management system comprises a temperature detection element, a power modulation element, a control element, and a visibility element. The temperature detection element includes a temperature sensor for detecting die temperature. The power modulation element may reduce the power consumption of an IC device by directly lowering the power consumption of the IC device, by limiting the speed at which the IC device executes instructions, by limiting the number of instructions executed by the IC device, or by a combination of these techniques. The control element allows for control over the behavior of the thermal management system, and the visibility element allows external devices to monitor the status of the thermal management system.
Owner:SONY CORP OF AMERICA
Methods and apparatus for thermal management of an integrated circuit die
An integrated, on-chip thermal management system providing closed-loop temperature control of an IC device and methods of performing thermal management of an IC device. The thermal management system comprises a temperature detection element, a power modulation element, a control element, and a visibility element. The temperature detection element includes a temperature sensor for detecting die temperature. The power modulation element may reduce the power consumption of an IC device by directly lowering the power consumption of the IC device, by limiting the speed at which the IC device executes instructions, by limiting the number of instructions executed by the IC device, or by a combination of these techniques. The control element allows for control over the behavior of the thermal management system, and the visibility element allows external devices to monitor the status of the thermal management system.
Owner:SONY CORP OF AMERICA
Light-source-driving control device, image forming apparatus, and light-source driving method
ActiveUS9779334B2Visual representatino by photographic printingElectrographic process apparatusPixel densityPower modulation
A light-source-driving control device thins a pixel at an edge portion of image data by a first pixel width; sets a second pixel width at the edge portion such that a ratio between the first and second pixel widths is constant; creates light amount information including a first light amount with which a pixel not included in the set second pixel width is exposed, and a second light amount with which a pixel included in the second pixel width is exposed; selects the first or second light amount based on a power-modulation control signal; drives light sources according to the selected light amount and a light-source-modulation pulse signal; and counts an addition value of pixel density considering a pixel width and a light amount, based on a data-width setting signal based on the second pixel width, and on a light-amount setting signal based on the light amount information.
Owner:RICOH KK
Repeater device for reducing the electromagnetic radiation transmitted from cellular phone antennas and extending phone battery life
InactiveUS20130035090A1Reduce transmit powerIncrease rangeEnergy efficient ICTPower managementTransmitted powerCarrier signal
A cellular communication system and method is described where a low-cost repeater is used to reduce the transmit power of a cell phone. The cell phone transmits a low-power modulated carrier signal to a nearby repeater. The repeater amplifies the signal and transmits it to a cellular base-station. The reduction of cell phone transmit power lowers the exposure of humans to RF radiation and increases the battery life of the cell phone.
Owner:GOLBA LLC
Aligning Radio Base Station Node Transmission Timing on Multiple Transmit Paths
ActiveUS20080300003A1Reduce the required powerSufficient accuracyTransmitters monitoringSubstation equipmentPower modulationTelecommunications network
A radio base station node (20) of a telecommunications network comprises a baseband transmitter (22) and plural radio frequency (RF) paths (24) between the baseband transmitter (22) and an antenna system (30). A measurement entity (32) is provided, preferably near the antenna system (30), for making a measurement or comparison of a time of detecting of a power modulation for each of plural RF transmission paths (24), e.g., a time of detecting of a power modulation for a first of the plural RF transmission paths and a time of detection of a power modulation for a second of the plural RF transmission paths. A transmission timing adjustment unit (34) uses the power modulation measurement or comparison for adjusting timing of transmission of signals for the plural RF transmission paths for obtaining a desired time alignment for the plural RF transmission paths.
Owner:TELEFON AB LM ERICSSON (PUBL)
Envelope tracking power transmitter using common-gate voltage modulation linearizer
InactiveUS20150091645A1Maintain output capacitanceImprove featuresAmplifier modifications to reduce non-linear distortionAmplifier modifications to raise efficiencyCapacitancePower modulation
An envelope tracking power transmitter includes an envelope amplifier, a common-gate power modulation linearizer and a power amplifier. The envelope amplifier may receive a first envelope voltage to generate a power supply voltage that is amplified in proportion to change of the first envelope voltage. The common-gate power modulation linearizer may receive a second envelope voltage to amplify the second envelope voltage according to change of the second envelop voltage. The power amplifier may receive a first output of the envelope amplifier as a power supply voltage and a drain bias voltage, may receive a second output of the common-gate power modulation linearizer as a common gate bias voltage, and may amplify a radio frequency (RF) input signal to provide a RF output signal by maintaining an output capacitance according to an envelope of the RF input signal.
Owner:KOREA ADVANCED INST OF SCI & TECH
LIDAR Device Based on Scanning Mirrors Array and Multi-Frequency Laser Modulation
ActiveUS20180329037A1Maximize rangeReduce background noiseElectromagnetic wave reradiationRadio wave reradiation/reflectionAmbiguityOptoelectronics
A LiDAR device that transmits a single or multiple continuous or intermittent laser beams to the environment and detects the reflected light on one or more detectors. The LiDAR device may include a scanning mirrors array composed of a single or multiple moving mirrors capable of changing the direction of the transmitted light. The scanning mirrors array may also include sensors and actuators which can be used to precisely control or measure the position of the mirrors. The LiDAR device may also include a lens that focuses the light captured by the mirror(s) onto a single or a multitude of detectors. The device may include laser sources and detectors operating in various wavelengths. The LiDAR device may also include laser power modulation mechanisms at a single or multitude of frequencies to improve signal detection performance and remove any ambiguity in range calculation.
Owner:MASSACHUSETTS INST OF TECH
High power modulator
InactiveUS6900557B1Simple designImprove reliabilityTransistorBoards/switchyards circuit arrangementsPower modulationConductor Coil
A compact transformer coupled modulator is described. The modulator includes a transformer comprising a primary and a plurality of secondary windings, where each secondary winding has an output terminal. The modulator also includes a plurality of switches, where each switch is associated with a respective secondary winding and has input and output terminals and a control terminal. The control terminal of each switch is in electrical communication with a respective output terminal of the plurality of secondary windings. Each of the plurality of switches is substantially simultaneously switched by an input signal applied to the primary.
Owner:DIVERSIFIED TECH INC
Plasma processing apparatus and plasma processing method
InactiveUS20100248489A1Extended service lifeProcess stabilityElectric discharge tubesSemiconductor/solid-state device manufacturingPower applicationPower modulation
There is provided a plasma processing apparatus and a plasma processing method capable of carrying out a stable plasma process by way of improving plasma stabilization and also capable of increasing lifetime of a variable capacitor in a matching unit, as compared to a conventional case. The plasma processing apparatus includes a power modulation unit configured to perform a power modulation for periodically switching a high frequency power from a high frequency power supply between a first power and a second power higher than the first power. The matching unit is configured to stop a matching operation for a first power application time and for a preset time after a second power application is started.
Owner:TOKYO ELECTRON LTD
Power adapter apparatus and power management method
InactiveUS20110157939A1Reduce power consumptionAc-dc conversion without reversalEfficient power electronics conversionElectricityPower modulation
A power adapter apparatus and a power management method thereof are disclosed in the invention. The power adapter includes an output interface and a power modulation unit. The power adapter can be electrically connected with an electronic device through the output interface. There is a detective structure disposed on the output interface. The power management method includes steps of: 1) detecting whether the power adapter apparatus is electrically connected with the electronic device by the detective structure; and 2) when the output interface is detected to be disconnected from the electronic device, switching the power modulation unit to a standby state, so as to reduce a total power consumption of the power modulation unit.
Owner:ADVANCED CONNECTION TECH
System and method for selectively forming and rotating a transmission beam
InactiveUS7386305B2Maximize throughputIncrease valueSpatial transmit diversitySubstation equipmentPower modulationAntenna gain
Broadly speaking, the invention comprises systems and methods that use the number of mobile stations, denoted by N, communicating with a base station, as a variable that determines the optimum induced change rate, R, and the antenna beam width, W, of a time-varying base station antenna gain pattern used in conjunction with a forward power modulation (FPM) or a similar scheme to maximize the overall data throughput from the base station by taking advantage of multi-user diversity. In one embodiment, the FPM scheme is turned off if N is below a lower threshold. If N is above this threshold, the FPM scheme is turned on with R and W set to appropriate values. Generally, higher values of N correspond to higher values of R and lower values of W.
Owner:QUALCOMM INC
Method and system using power modulation for maskless vapor deposition of spatially graded thin film and multilayer coatings with atomic-level precision and accuracy
A method and system for producing a film (preferably a thin film with highly uniform or highly accurate custom graded thickness) on a flat or graded substrate (such as concave or convex optics), by sweeping the substrate across a vapor deposition source operated with time-varying flux distribution. In preferred embodiments, the source is operated with time-varying power applied thereto during each sweep of the substrate to achieve the time-varying flux distribution as a function of time. A user selects a source flux modulation recipe for achieving a predetermined desired thickness profile of the deposited film. The method relies on precise modulation of the deposition flux to which a substrate is exposed to provide a desired coating thickness distribution.
Owner:EUV
Plasma processing method and plasma processing apparatus
ActiveUS9754768B2Electric discharge tubesDecorative surface effectsPower modulationHigh frequency power
At a time point T0 when starting a process, a duty ratio of a high frequency power RF1 to which power modulation is performed is set to be an initial value (about 90%) which allows plasma to be ignited securely under any power modulating conditions. At the substantially same time of starting the process, the duty ratio of the high frequency power RF1 is gradually reduced from the initial value (about 90%) in a regular negative gradient or in a ramp waveform. At a time point t2 after a lapse of a preset time Td, the duty ratio has an originally set value Ds for an etching process. After the time point t2, the duty ratio is fixed or maintained at the set value Ds until the end (time point T4) of the process.
Owner:TOKYO ELECTRON LTD
Recording clock generating device and method thereof
InactiveUS6856586B2Prevent movementEfficient use ofFilamentary/web record carriersRecord information storagePower modulationPhase difference
Crosstalk between tracks, land prepit leakage, and effects of recording power modulation can cause the wobble signal period to change irregularly, thereby producing jitter in the recording clock which is derived by frequency multiplying the wobble signal. This problem is resolved by a recording clock generating circuit having an arrangement to average the wobble signal period, a timer for generating a rectangular wave with substantially the same period as the average period, and a frequency multiplying PLL for multiplying the timer output. The period averaging arrangement in particular determines the approximate average period at every wobble period and reflects the phase difference between the wobble signal and the timer in the timer setting so as to improve recording clock stability.
Owner:JVC KENWOOD CORP A CORP OF JAPAN +1
Grid interactive double conversion inverter
InactiveUS20140062192A1Quality improvementBatteries circuit arrangementsSingle network parallel feeding arrangementsPower inverterGrid-tie inverter
A system includes an uninterruptible power supply and a grid-tie inverter, connected to batteries via double conversion of high quality DC power sources. A Grid Interactive Double Conversion unit includes DC source with MPPT control and power modulation; a Bi-directional DC battery port; a Bi-direction AC grid port; a Pure Sine wave AC output; a Generator AC input, and DC contacts to prevent the inverter from back feeding generator during a power failure.
Owner:AXION POWER INT
Electrosurgical medical device with power modulation
ActiveUS20150094703A1Fully comprehendedDiagnosticsSurgical instruments for heatingPower modulationEngineering
An electrosurgical ablation device provides pulse width modulated DC power to a heating segment in a catheter for use in providing treatment. In some embodiments the DC power to be modulated is sourced from an AC / DC power converter coupled to a source of AC power. In some embodiments the DC power to be modulated is sourced from a battery. In some embodiments the device switchably selects for modulation DC power sourced from either the AC / DC power converter or the battery, for example based on availability of power from the AC / DC power converter.
Owner:TYCO HEALTHCARE GRP LP
Recording medium data recording method and device
A data recording method according to the present invention is a method for recording data as edge position information, including marks and spaces of multiple different lengths, on a storage medium by irradiating the storage medium with a pulsed energy beam. The method includes the steps of: (A) generating a NRZI data based on the data to be recorded; (B) determining a write pulse waveform, defining the power modulation of the energy beam, according to the code lengths of respective codes included in the NRZI data; and (C) modulating the power of the energy beam based on the write pulse waveform. If the shortest code length of the NRZI data is n (which is an integer equal to or greater than one), a write pulse waveform that has only one write pulse is assigned to recording mark making periods corresponding to codes with code lengths x of n, n+1 and n+2, and a write pulse waveform that has multiple write pulses Pw is assigned to recording mark making periods corresponding to codes with code lengths x of n+3 or more.
Owner:PANASONIC CORP
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