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102 results about "Pulse mode" patented technology

Pulse Mode. This setting allows for laser radiation to be emitted in short bursts while the foot pedal is depressed. This provides a less aggressive approach and allows the tissue to cool between pulses. One of the most confusing aspects seems to be how the wattage differs when using pulse mode as compared to continuous mode.

Display and human-computer interaction for a notification platform

User interfaces for relaying notifications to users are disclosed. In a pulsing mode, information is faded into a predetermined area of a display, where the information has a net value greater than a predetermined or dynamically computed threshold. In a stream-cycling mode, for a number of different information sources, a display time is determined for each notification based on the information's importance. Each information is displayed in turn for a length of time equal to the display time, within the predetermined area of the display. In a stream-stacking mode, information from each of a number of sources is displayed in a corresponding source summary window. When the net value of information in a notification is greater than a predetermined or computed threshold, the information may be streamed in a main notification window and can be journaled in a journal window.
Owner:MICROSOFT TECH LICENSING LLC

System and method for providing high brightness illumination

An illumination system includes a plurality of solid state light emitters and a scanner operative to sequentially receive light from the plurality of solid state light emitters and to provide a time-multiplexed light output. The solid state light emitters are each operated in pulse mode to increase their brightness relative to the light output of similar emitters operating in continuous mode. The time multiplexed light output is a generally continuous output having a brightness that is greater than the brightness of the output of similar emitters operating in continuous mode. The time multiplexed light output is useful in photolithography and machine vision applications.
Owner:ORBOTECH LTD

VCSEL pumped fiber optic gain systems

Optical pump modules comprising VCSEL and VCSEL array devices provide high optical power for configuring fiber optic gain systems such as fiber laser and fiber amplifier particularly suited for high power operation. Pump modules may be constructed using two reflector or three reflector VCSEL devices optionally integrated with microlens arrays and other optical components, to couple high power pump beams to a fiber output port. The pump module having a fiber output port is particularly suited to couple light to an inner cladding of a double-clad fiber, often used to configure high power fiber laser and fiber amplifier. The pump modules may be operated in CW, QCW and pulse modes to configure fiber lasers and amplifiers using single end, dual end, and regenerative optical pumping modes. Multiple-pumps may be combined to increase pump power in a modular fashion without significant distortion to signal, particularly for short pulse operation.
Owner:PRINCETON OPTRONICS

Ripple reducing circuit for light-load pulse hopping mode of DC-DC (Direct Current-Direct Current) converter

The invention discloses a ripple reducing circuit for a light-load pulse hopping mode of a DC-DC (Direct Current-Direct Current) converter, which mainly solves the problem that the output ripple of an existing light-load pulse hopping mode is large. The ripple reducing circuit comprises a capacitance charge-discharge unit (1), a comparison unit (2), a logic control unit (3) and a switch-on time control unit (4), wherein the capacitance charge-discharge unit (1) is used for outputting different voltage signals VC1 according to difference of switch-off signals ZC of a switch tube; the comparison unit (2) is used for comparing the voltages signals with reference voltage and supplying a zero clearing signal to the logic control unit (3); the logic control unit (3) is used for counting a pulse signal LG and outputting a switch signal RR; the switch-on time of an upper switch tube can be controlled by the switch signal through controlling the size of charge current of internal capacitance of the switch-on time control unit (4), and a peak value of inductive current can be reduced. According to the ripple reducing circuit disclosed by the invention, the output voltage ripple of the light-load pulse hopping mode of the converter is effectively reduced while the high efficiency of the converter is ensured, and the ripple reducing circuit can be used for the DC-DC converter.
Owner:XIDIAN UNIV

Open-loop and/or closed-loop control system of a 3-phase power converter for the operation of an asynchronous machine

An open-loop and / or closed-loop control device for operating an asynchronous machine which is fed by a 3-phase power converter. The open-loop and / or closed-loop control structure has a stator flux controller and a pulse pattern generator for generating pulse signals based on mean values. An output of the stator flux controller is connected to an input of the pulse pattern generator, with the result that the pulse pattern generator can generate the pulse signals as a function of a manipulated variable which is generated by the stator flux controller. The stator flux controller is configured so as to generate the manipulated variable as a function of a desired value of the stator flux of the asynchronous machine and as a function of a desired value of the torque of the asynchronous machine. The stator flux controller has a dead-beat control response.
Owner:BOMBARDIER TRANSPORTATION GMBH

High side power switch with charge pump and bootstrap capacitor

A power switching circuit comprising a power semiconductor switching device, a charge pump circuit having a control input to control whether it is on or off and a charge pump output, the charge pump output being coupled to a control terminal of the power semiconductor switching device, a bootstrap power supply for supplying power to driver circuitry for the power semiconductor switching device, the bootstrap power supply comprising a bootstrap capacitor coupled to a charging current source, the bootstrap power supply providing power to the driver circuitry when the power semiconductor switching device is being switched by the driver circuitry in a pulsed mode, and the charge pump supplying a control voltage to turn on the power semiconductor switching device and maintain it on when the power switching semiconductor device is to be maintained on continuously.
Owner:INFINEON TECH AMERICAS CORP

Device and method for dazzle protection

InactiveUS20140320771A1Avoid and minimize disturbanceStatic indicating devicesEye-masksProtective glassesEngineering
A method for operating an auto-darkening welding filter for protecting a welder's eye in the course of a pulse mode welding process. During the pulse mode welding process at least a first time interval with strong light emission and a second time interval with reduced and / or negligible light emission are repeated with a repetition rate, and a point in time of a beginning of the first time interval is associated with a raising edge event. The method includes the step of darkening the auto-darkening welding filter to a first darkening level at a point in time of the raising edge event that is associated with a next first time interval.
Owner:OPTREL AG

Apparatus and method for discriminating front and back of wide field complete-optical fiber disturbing signal

A front-rear discriminating method of wide domain complete optical fiber disturbance signal is principally used in conduit monitoring, such as conduit safety monitoring of various conveying danger or high value chemical industry article, which specially includes: the background terminal controls the operation of the entire wide domain complete optical fiber disturbance testing system, which is divided into two operation modes, a front discriminating rule and a rear discriminating rule; when the system is at the operating system, the systems produces a control command by a control circuit, and the control circuit controls the selection of the detection mode, which allows the system to work at the continuous wave mode or at a pulse mode; in the continuous operating mode, the system detects whether the disturbance sensing signal appears; while in the pulse operating state, the system sends out and detects a location signal, and locates the disturbance sites; in the selected operating mode, the system completes the photo-electric detection relative to the operating mode, the photoelectric signals are amplified and conditioned in the photo-electric detection circuit, and then are captured in a data acquisition module, the captured signals form a disturbance sensing signal processing result after processing.
Owner:SOUTHEAST UNIV

Phase controller apparatus and pulse pattern generator and error detector using the phase controller apparatus

A quadrature modulator divides a first signal input as a local signal into an I channel signal and a Q channel signal orthogonal to each other and outputs a second signal having a desired phase delay corresponding to direct current voltages as for the first signal by giving the direct current voltages Vi and Vq to the I channel signal and the Q channel signal, respectively. A phase comparison unit detects a phase difference θ between the first signal and the second signal. A setting unit sets the desired phase delay. A controller section controls the direct current voltages supplied to the I channel signal and the Q channel signal respectively in the quadrature modulator so that an output value corresponding to the phase difference θ detected by the phase comparison unit is equal to a value corresponding to the desired phase delay set by the setting unit, and controls the direct current voltages to be the direct current voltages Vi and Vq satisfying the relation of Vi=cos θ and Vq=sin θ.
Owner:ANRITSU CORP

Pulse mode electron generator

The pulse mode electron generator of the invention includes a field emission cathode with electron-emitting micropoints associated with a grid biased by means for positively biasing the grid and an anode attracting electrons emitted by the cathode. The grid is biased by a permanent positive pre-bias voltage generator delivering a rest voltage which is slightly lower than the emission threshold voltage of the cathode and in series with a positive pulse voltage generator delivering a pulse component of sufficient value to exceed the emission threshold voltage of the cathode. This facilitates the pulse mode production of electrons and reduces the power consumption needed to produce the electrons.
Owner:ALCATEL LUCENT SAS

Device for injecting liquid precursors into a chamber in pulsed mode with measurement and control of the flowrate

A device for injecting into a chamber at least one precursor comprises at least one tank containing the precursor, means for keeping the tank at a higher pressure than that of the chamber, and at least one injector connected to the tank. It also comprises a device for measuring the mean flowrate, arranged between the tank and the injector and a mechanical low-pass filter arranged between the device for measuring the flowrate and the injector. The control circuit comprises outputs respectively connected to the tank and to the injector for controlling said pressure and / or the injection time and / or the injection frequency, in such a way as to periodically inject droplets of precursor into the chamber. The control circuit also comprises a regulation input connected to the output of the device for measuring the mean flowrate, in such a way as to control said pressure and / or the injection time and / or the injection frequency in order to keep the mean flowrate at a predetermined set-point.
Owner:QUALIFLOW THERM

Quantitative feed electric control pressure reductor, characteristic test system for pressure reductor and automatic test method

The invention relates to a quantitative feed electric control pressure reductor, a characteristic test system for the pressure reductor and an automatic test method. The quantitative feed electric control pressure reductor comprises a quantitative air charging device and a quantitative air discharging device, and the quantitative air charging device and the quantitative air discharging device respectively control the movement of a valve core with an air charging magnet coil and an air discharging magnet coil in an pulse mode to quantitatively charge or discharge air to a control cavity, thereby the outlet pressure of the quantitative feed electric control pressure reductor is regulated to a setting value; the quantitative feed electric control pressure reductor, a measured pressure reductor, a sensor device, a control valve, a data acquisition and control circuit and like are connected in series to form the characteristic test system for the pressure reductor, the outlet pressure of the quantitative feed electric control pressure reductor is used as the inlet pressure of the measured pressure reductor, the sensor and a collection card are used as a data acquisition device, the automatic performance of the characteristic test of the measured pressure reductor is realized by computer process control, and the test data is displayed and recorded in real time.
Owner:北京旧宫旭德天普机械厂 +1

Impedance matching methods and systems performing the same

Provided are an impedance matching method and a matching system performing the same. The method includes: measuring an electrical characteristic of the power transmission line; determining a pulse mode of the power source; extracting a control parameter for impedance matching from the electrical characteristic of the power transmission line; and controlling the matching system through the controlparameter, wherein the matching system is controlled differently according to the pulse mode.
Owner:PLASMART

High side power switch with charge pump and bootstrap capacitor

A power switching circuit comprising a power semiconductor switching device, a charge pump circuit having a control input to control whether it is on or off and a charge pump output, the charge pump output being coupled to a control terminal of the power semiconductor switching device, a bootstrap power supply for supplying power to driver circuitry for the power semiconductor switching device, the bootstrap power supply comprising a bootstrap capacitor coupled to a charging current source, the bootstrap power supply providing power to the driver circuitry when the power semiconductor switching device is being switched by the driver circuitry in a pulsed mode, and the charge pump supplying a control voltage to turn on the power semiconductor switching device and maintain it on when the power switching semiconductor device is to be maintained on continuously.
Owner:INFINEON TECH AMERICAS CORP

IP-DSL network monitoring system

The invention discloses an IP-DSL network monitoring system which comprises a monitoring control front end peripheral equipment, an IP-DSL network monitoring control host, an IP-DSL digital disc video recorder and the administration user terminals, wherein the audio and visual signals are treated through A-D conversion through monitoring control host computer, data compression, signal transmission and are transmitted to the telephone line through pulse mode, the digital disc video recorder receiving the signals fro the DSL end of the monitoring control host machine and proceeding data format recovery, the processed data is stored into hard disc medium.
Owner:浙江科华科技发展有限公司

Control method and device, household appliance and computer readable storage medium

The invention provides a control method, a control device, a household appliance and a computer readable storage medium. The control method is suitable for a control circuit. A PFC (Power Factor Correction) circuit is arranged in the control circuit, and the PFC circuit is connected with the power factor correction circuit. When a switching device in the PFC circuit receives a specified pulse signal, the amplitude of bus voltage output by the PFC circuit is increased, and the control method comprises the following steps: detecting the load capacity operated by the control circuit; and according to the load capacity, controlling the PFC circuit to work in a high-frequency switching mode or a multi-pulse mode, or controlling the PFC circuit to synchronously rectify or cut off. According to the technical scheme, normal operation of the load can be guaranteed, bus voltage loss can be reduced under the condition of low load capacity, meanwhile, switching loss is reduced, and improvement ofharmonic performance and efficiency of the control circuit is facilitated.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

A multi-lamp dimming control method for the cold cathode lamp tube

The disclosed multi-tube light control method for cold cathode lamp comprises: firstly regulating system output current to minimal by linear way, then entering the burst mode for light control. This invention reduces the duty ratio, and decreases voltage / current burst.
Owner:CHUNTEX ELECTRONICS

Electric energy metering device

PendingCN107300640ASave area and powerFew peripheral interfacesCurrent/voltage measurementPower flowWaveform sampling
The invention discloses an electric energy metering device. The electric energy metering device is characterized by comprising a current waveform sampling module, a current effective value instantaneous value calculation module and a current pulse generation module which are successively and electrically connected and is characterized by further omprising a voltage waveform sampling module, a voltage effective value instantaneous value calculation module and a voltage pulse generation module which are successively and electrically connected; the electric energy metering device also comprises a power instantaneous value calculation module and an energy pulse generation module which are mutually and electrically connected; and the current waveform sampling module and the voltage waveform sampling module are respectively and electrically connected to the power instantaneous value calculation module. The electric energy metering device can represent magnitudes of the effective values of the current and voltage and power consumption through a pulse mode, does not need to configure calibration parameters, an output register and a communication interface and greatly reduces power consumption and an area.
Owner:SHANGHAI BEILING

Mixed mode X-ray generation method and mixed mode X-ray generation device

The invention relates to a mixed X-ray generation method which comprises a DC (Direct Current) mode and a pulse mode. The DC mode and the pulse mode can be freely switched. In the DC mode, a required current is provided for a cathode filament of an X-ray tube according to an input tube current set value signal; uninterrupted DC high voltages are loaded to both ends of the X-ray tube according to an input tube voltage set value signal; and in the whole working period, the closed-loop control is respectively formed by a tube voltage feedback value signal and a tube current feedback value signal which are obtained by the X-ray tube and the input tube voltage set value signal and the input tube current set value signal. In the pulse mode, pulse high voltages are loaded to both ends of the X-ray tube; in the whole period during each pulse high voltage interval period, a tube voltage analog value signal and a tube current analog value signal are input to respectively replace the tube voltage and tube current feedback value signals. The invention also provides a mixed X-ray generation device. The mixed X-ray generation method and the mixed X-ray generation device have the advantage that two irradiation modes of DC and pulse X rays can be simultaneously implemented on one equipment.
Owner:HEFEI MEIYA OPTOELECTRONICS TECH

Method and device for constructing multiple CO2 laser system

The invention relates to laser processing of optical engineering and modern manufacturing industry field, in particular to a method and a device thereof for constructing a compact high-power laser system with an intra-cavity common point consisting of a plurality of CO2 laser devices. The laser device consists of total reflection mirrors 0-8, discharge tubes 9-17, an output mirror 18, a hollow circular bracket 20, disc brackets 21, 22 and 23, a common water cooled jacket 24, a laser device bracket 25 and a hyperbolic glass tube 26. The axes of resonant cavities are intersected in one point of an intra-cavity public area, the resonant cavities share one output mirror, and the resonant cavities can acquire high-power output and protect the output mirror from being damaged by light and are favorable for long-term effective operation; and when the discharge areas at the public point continuously discharge and each discharge tube discharges in a pulse mode, beams produce phase-locked operation to a certain degree because stimulated particles at the public point of the public area synchronously stimulate intrinsic modes of the cavities to oscillate so as to facilitate converged laser processing and application.
Owner:SICHUAN UNIV

Hybrid-technology metal detector

A hybrid-technology metal detector, using pulse-induction and sine-wave excitation of the transmitter coil alternately, in rapid succession.The energy stored in the transmitter coil, in the pulsed mode, is used to shock-excite a high-Q circuit formed by the coil and a parallel capacitor into oscillations in the sine-wave mode.The multiplicative action of the circuit Q causes high currents to flow in the transmitter coil, causing high fluxes to be impressed on the searched area, with increased sensitivity as a result.Using a linear coil-current ramp to assess and minimize the coupling between the transmitter and receiver coils permits effective separation of the reactive and resistive components of the target signals, making accurate identification of targets possible.
Owner:DIENCO

Control method and device, household appliance and computer readable storage medium

The invention provides a control method and device, a household appliance and a computer readable storage medium. The control method is suitable for a control circuit. A PFC (Power Factor Correction)circuit is arranged in the control circuit. When a switching device in the PFC circuit receives a specified pulse signal, an amplitude of a bus voltage output by the PFC circuit is increased. The control method comprises the following steps of detecting a load capacity driven by the control circuit to operate; and controlling the PFC circuit to work in a high-frequency switching mode or a multi-pulse mode according to the load capacity. In the technical scheme of the invention, a bus voltage requirement during a high load is satisfied according to a high-frequency switching mode; in a low load, multi-pulse mode operation is controlled, or the PFC circuit is controlled to be in a synchronous rectification or intermittent state so as to drive a bus voltage provided by the control circuit andmatch an optimal compressor voltage modulation ratio; and an inverter and a power conversion unit are reduced so that normal operation of the load can be ensured, a bus voltage loss can be reduced under a condition of the lower load capacity, and meanwhile, switching losses are reduced.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Radar radiation source pulse-to-pulse mode excavation method based on fuzzy matching

The invention discloses a radar radiation source pulse-to-pulse mode excavation method based on fuzzy matching. According to the radar radiation source pulse-to-pulse mode excavation method based on fuzzy matching, the degree of fuzzy matching between every two radar radiation source pulse-to-pulse sets of a certain radar radiation source is measured through setting of pulse-to-pulse similarity threshold delta values, and then the pulse-to-pulse sets with the fuzzy matching frequency larger than or equal to a support degree threshold thresh value are further excavated. The radar radiation source pulse-to-pulse mode excavation method based on fuzzy matching has the advantages that a novel analysis method for the radar radiation source pulse-to-pulse signal sequence is provided, and analysis is not limited by radar radiation source pulse-to-pulse signal individual analysis; the type of radar radiation sources with superposed radar radiation source pulse-to-pulse signal feature distribution ranges and different pulse-to-pulse sets can be conveniently distinguished; the calculation cost is low, the implementation method is engineered, and the excavated pulse-to-pulse sets can effectively improve the analysis and handling capacity for the radar radiation source pulse-to-pulse signal sequence.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Fuel Injector Control Method

A fuel injector control method comprises determining a required separation time between a termination of an on signal associated with a first injection event and an initiation of an on signal associated with a second injection event. The method comprises calculating an overlap time between the separation time and the time to charge the piezoelectric stack to a first level; dividing the overlap time into first and second time periods as a function of the charge and discharge currents; applying the charge current to the piezoelectric stack for a charge time; and applying the discharge current to the piezoelectric stack for a discharge time so as to discharge the stack to a second level, wherein the discharge time is calculated on the basis of the second time period of the overlap time. Thus, first and second injection events are merged in a pulse mode of operation.
Owner:DELPHI INT OPERATIONS LUXEMBOURG S A R L

Double-pulse blind area signal processing method and device, radar and storage medium

The invention belongs to the technical field of computers and provides a double-pulse blind area signal processing method applied to a laser radar. The method comprises the following steps of: capturing an echo signal corresponding to two detection pulses; forward delaying the echo signal for a time length corresponding to an transmitting time interval to obtain a first echo signal; adding N zerosto the tail of the echo signal to obtain a second echo signal; obtaining a first mixed echo signal based on the first echo signal and the second echo signal; deleting the first N signals of the firstmixed echo signal to obtain a second mixed echo signal; and performing signal splicing on the first N points of the second echo signal and the second mixed echo signal to obtain a target echo signal.N is the number of sampling points corresponding to the transmitting time interval. The method can effectively solve a problem of a short-distance blind area caused by the time delay between the twodetection pulses, and improves the radar short-distance detection performance and range finding precision in a double-pulse mode.
Owner:SUTENG INNOVATION TECH CO LTD

Design method for multi-wavelength ultrashort-pulse mode-locked photonic integrated chip with high repetition frequency, product and application

The invention discloses a design method for a mode-locked photonic integrated chip with high repetition frequency, a product and an application. The chip comprises a semiconductor optical amplifier array which provides gain for channels with N wavelengths; a phase delay line array which comprises phase delay lines with different lengths and is used for respectively compensating different effectiveoptical path differences of the gain light of each wavelength channel caused by a dispersion effect; a planarized arrayed waveguide grating which is used for multiplexing the gain light subjected toeffective optical path difference compensation and multiplexing N paths of optical pulse signals into one path of optical pulse signals; a saturable absorber, wherein the saturable absorber and the arrayed waveguide grating form N independent and synchronous mode-locked optical pulse channels with different wavelengths; wherein the semiconductor optical amplifier is used for gaining and outputtingoutput pulses of the saturable absorber. The chip has the advantages of being small in size, light in weight, low in power consumption, high in stability and resistant to electromagnetic interference, can output high-repetition-frequency multi-wavelength ultra-short pulses, and can be perfectly applied to a high-speed photon analog-to-digital converter.
Owner:ZHEJIANG UNIV

Mantle source oil and gas enrichment region analysis and prediction method based on crustal stress finite elements

The invention relates to the technical field of petroleum and natural gas exploration. The invention discloses a mantle source oil and gas enrichment region analysis and prediction method based on crustal stress finite elements. In a primary modeling finite element analysis result, deep fluid filling is carried out in a pulse mode along a deep fracture crustal stress low-value area. An filled shallow low-crustal stress area is divided. Asecondary model is established, analysis is carried out according to a primary modeling analysis process, the crustal stress low-value position of the shallowfracture model is checked, the position is an oil-gas enrichment area, and the position is generally a high-yield oil-gas well. Therefore, the valance source oil and gas enrichment region analysis andprediction method based on the crustal stress finite element can accurately predict the oil and gas enrichment region and the specific reservoir forming part.
Owner:西安幔源油气勘探开发研究有限公司

Cloud-platform-based intelligent physiotherapy instrument

The invention is titled as a cloud-platform-based intelligent physiotherapy instrument comprising a peripheral circuit, a power supply, a single-chip microcomputer, a voltage-doubling circuit, an electrode, an equipotential bandage, a WeChat bluetooth, a mobile terminal, a remote server and a payment platform. With a single-loop variable voltage waveform output, a voltage waveform is generated byprogram controlling of a single-chip microcomputer and the generated waveform is outputted to the electrode by the voltage-doubling circuit; a pulse signal is transmitted to the equipotential bandageterminal by the electrode; the single-chip microcomputer sends data to a WeChat public platform via the WeChat Bluetooth and then the data are uploaded to the remote server; and the single-chip microcomputer is used for controlling the pulse mode and strength at the mobile terminal. The cloud-platform-based intelligent physiotherapy instrument has advantages of novel structure, small and exquisiteappearance, great convenience, low cost, simple operation, and high safety and effectiveness. On the basis of combination of the modern Internet-of-Things technology, the equipment state informationand number can be uploaded to a cloud terminal. The traditional physiotherapy way is broken and digital and precise physiotherapy instrument maintenance is realized; and defects of the existing physiotherapy instrument are overcome.
Owner:CHENGDU HEXU MEDICAL TECH CO LTD
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