16 results about "Coupled pulse" patented technology

The invention discloses a coupling pulse distortion compensation method for superconducting quantum computing, and relates to the field of signal processing, and the method comprises the steps: S1, inputting an initial square wave signal into a first IIR filter, and reducing the frequency attenuation of superconducting quantum bits; s2, outputting the initial square wave signal to a second IIR filter to improve the high-frequency component of the initial square wave signal; s3, outputting the initial square wave signal to a third IIR filter to eliminate pulse back edge reflection of the initial square wave signal; and S4, outputting the initial square wave signal to a first FIR filter to carry out ripple correction so as to complete pre-distortion correction. By setting the staged pre-distortion compensation of the three-section IIR filter and the one-section FIR filter, the pre-distortion compensation of the square wave signal is more accurate and stable, the square wave edge response is rapid and the amplitude is correct, and the time delay and the amplitude error caused by the link are reduced; the quantum bit Z-axis phase control method has the advantages that quantum bit Z-axis phase control is more accurate, and the fidelity of a square wave signal gate is prevented from being reduced.

A pulse generator is disclosed. The pulse generator includes a DC source; a plurality of switches, a transformer; and a pulsing output. The pulse generator can be coupled with a plasma chamber. The pulsing output outputs high voltage pulses having a peak-to-peak voltage greater than 1 kV and a voltage portion between consecutive high voltage bipolar pulses that has a negative slope that substantially offsets the voltage reduction on a wafer within a plasma chamber due to an ion current. The resulting voltage at the wafer may be substantially flat between consecutive pulses.

A digital-to-analogue converter (DAC) device includes an input terminal for receiving an input signal that includes m MSBs and n least significant bits LSBs. The device includes a coarse DAC that generates a first voltage from the m MSBs, utilizing resistors and switches coupled to a reference voltage. Coupled with a clock signal of a predetermined frequency, a pulse generator produces pulse signals, including a first pulse signal with a first average voltage and a second pulse signal with a second voltage approximately half of the first average voltage. A fine DAC generates a second voltage using then LSBs to select among the pulse signals. An output filter combines the first and second voltages to produce the final output signal. Integrated circuits containing DAC devices and packages containing the integrated circuits are also described.

An ADC (50) is disclosed. It has two VTCs (110a, 110b) for converting a first and a second input voltage, respectively, to pulses with delays corresponding to the magnitudes of these voltages. It further has a pulse-detector circuit (120) coupled to outputs (114a, 114b) of the two VTCs (110a, 110b). The pulse-detector circuit (120) is configured to make a transition from a first logic state (‘0’) to a second logic state (‘F) at a first output (124a) of the pulse-detector circuit (120) in response to the start of the pulse from one of the VTCs (110a) and to make a transition from the first logic state (‘0’) to the second logic state (‘F) at a second output (124b) of the pulse-detector circuit (120) in response to the start of the pulse from the other VTC. Furthermore, the pulse-detector circuit (120) is configured to reset both the first and the second output (124a, 124b) to the first logic state (‘0’) in response to both the first output (124a) and the second output (124b) of the pulse-detector circuit (120) being set in the second logic state (‘1’). The ADC (50) further has a first TDC (130a) coupled to the first output (124a) of the pulse-detector circuit (120) and a second TDC (130b) coupled to the second output (124b) of the pulse-detector circuit (120).

The embodiment of the application discloses a divider and an optical processor, and belongs to the technical field of optical computing. In the divider, a first optical signal source sends a pulse optical signal into a waveguide loop, and the ratio of the amplitude of the pulse optical signal to a dividend is equal to a preset ratio; a second optical signal source sends a continuous optical signal into a second waveguide, and the ratio of the amplitude of the continuous optical signal to a divisor is equal to the preset ratio; a coupler couples the continuous optical signal and the pulse optical signal, and the amplitude of the coupled pulse optical signal is equal to the amplitude of the uncoupled pulse optical signal minus the amplitude of the continuous optical signal; a detector detects the amplitude of the pulse optical signal after each coupling; and a controller determines the number of times that the pulse optical signal after the coupling is detected by the detector as a quotient when receiving a target amplitude sent by the detector and smaller than the amplitude of the continuous optical signal, and determines the product of the target amplitude and the preset ratio as a remainder. It can be seen that the application provides a divider for realizing a division operation in an optical chip.

This invention relates to the field of data evidence storage technology, and discloses an industrial instrument data evidence storage middleware and its pulse atomization signature method. The middleware includes a physical interface layer and a microcontroller unit (MCU). The transceiver circuit of the physical interface layer includes: an RC inverse attenuation network, connected in series in the receiving channel, attenuating the inverse command signal level to below the standard transceiver differential identification threshold, realizing one-way monitoring and authorization at the physical layer; and an optocoupler isolation circuit, connected in parallel in the pulse input channel, with its output directly connected to the MCU's highest priority external interrupt (EXTI) pin, forming a hard-coupled pulse triggering path. After EXTI triggering, the MCU enters the highest priority ISR, atomically locking the original evidence to a volatile buffer. After exiting the ISR, it asynchronously completes hash and PUF-derived private key signature operations in the background and sends the evidence storage frame using the bus idle window. The evidence storage data is written to the NVM logical partition through the ZoneLock mechanism and is irreversibly locked. Combined with chained hash verification, data integrity and timing are ensured.

The invention relates to the technical field of electromagnetic compatibility (EMC) test and simulation, in particular to a cable coupling S parameter general module simulation modeling method facing pulse excitation, which comprises the following steps: S parameter module generation stage: utilizing three-dimensional electromagnetic simulation software, and according to a real cable geometric structure, a type and an injection probe model, generating an S parameter module; constructing a cable coupling pulse interference electromagnetic model, and executing frequency domain simulation through a user-defined port and a frequency scanning range to obtain an S parameter module; in the S parameter module simulation application stage, the S parameter module is imported into any circuit simulation software supporting the standard, the S parameter module, a pulse interference excitation source, a terminal load circuit and a tested object circuit model jointly form a complete simulation model, then transient time domain simulation is executed, a detailed response waveform is generated on a tested object port, and therefore performance evaluation is conducted; the method is based on a cross-platform universal interface of an open standard, has wide applicability and prospective verification capability, and shortens the product research and development cycle.

A high frequency electromagnetic radiation generation device is disclosed that includes a high voltage input, a nonlinear transmission line, an antenna, and a pulse recirculating circuit. In some embodiments, the high voltage input may be configured to receive electrical pulses having a first peak voltage that is greater than 5 kV, and / or may be electrically coupled with the nonlinear transmission line. The antenna may be electrically coupled with the nonlinear transmission line and / or may radiate electromagnetic radiation at a frequency greater than 100 MHz about a voltage greater than 5 kV. The pulse recirculating may be electrically coupled with the high voltage input and the antenna. The pulse recirculating circuit may include a diode; a low pass filter; and a delay line. In some embodiments, unradiated energy from the antenna is directed through the pulse recirculating circuit to the nonlinear transmission line with a delay of less than 100 ns.

A sensor buoy comprising: a buoy casing configured to float on a body of water; an antenna mounted to the buoy casing so as to limit an RF range of view to no more than fifteen kilometers; an instantaneous frequency measurement (IFM) receiver mounted to the buoy casing and communicatively coupled to the antenna; a pulse descriptor word (PDW) generator mounted to the buoy casing and configured to receive an output from the IFM receiver; a processor configured to receive PDWs generated by the PDW generator and to calculate a corresponding pulse repetition interval (PRI); a magnetometer communicatively coupled to the processor; a scheduler communicatively coupled to the processor and configured to control when the sensor buoy transmits information; and a transmitter communicatively coupled to the scheduler and configured to format data from the processor into a correct format and packet structure for transmission.

The utility model discloses a liquid flow detection device, and relates to the technical field of detection devices. The flow detection device comprises a pulse type liquid flow sensing module which is used for sensing and outputting a liquid flow signal; the signal coupling module is used for receiving and coupling the liquid flow signal and outputting a coupled pulse signal; the waveform shaping module is used for shaping the coupling pulse signal and outputting a one-way coupling pulse signal with one-way pulsation; the reference signal output module is used for outputting a liquid flow reference signal; the signal comparison module is used for comparing the one-way coupling pulse signal with the liquid flow reference signal and outputting a comparison signal; and the detection module is used for outputting a liquid flow detection result according to the comparison signal. Liquid flow signals output by the pulse type liquid flow sensing module only comprise coupling pulse signals after passing through the signal coupling module, the design difficulty of a detection circuit is simplified, and meanwhile the stability and accuracy of liquid flow detection are enhanced.

A sensor buoy comprising: a buoy casing configured to float on a body of water; an antenna mounted to the buoy casing so as to limit an RF range of view to no more than fifteen kilometers; an instantaneous frequency measurement (IFM) receiver mounted to the buoy casing and communicatively coupled to the antenna; a pulse descriptor word (PDW) generator mounted to the buoy casing and configured to receive an output from the IFM receiver; a processor configured to receive PDWs generated by the PDW generator and to calculate a corresponding pulse repetition interval (PRI); a magnetometer communicatively coupled to the processor; a scheduler communicatively coupled to the processor and configured to control when the sensor buoy transmits information; and a transmitter communicatively coupled to the scheduler and configured to format data from the processor into a correct format and packet structure for transmission.

According to the long-pulse laser additive-ultrafast laser coaxial strengthening fusion manufacturing method, long-pulse laser is adopted as an additive melting energy source, and the comprehensive mechanical property better than that of continuous laser can be obtained; after the material is melted, ultrafast laser is used for coaxially irradiating the formed material, the limitation of off-axis strengthening is avoided, internal defects are reduced through high-frequency periodic impact of the ultrafast laser, the microstructure is refined and regulated, the surface hardness of the formed material is improved, the fatigue life of the formed material is prolonged, and the performance of parts is further improved. Meanwhile, the adopted double light sources form coaxial coupling pulse light beams by using a beam combining element, so that the adoption of a plurality of sets of galvanometer scanning systems is avoided, the rapid and high-frequency conversion of irradiation pulses is realized through coaxial beam combination and sequential control, and the structural complexity of the device and the technical implementation cost are reduced.

The embodiment of the present invention discloses a pulse number self-correction control device, method and fiber laser, which includes a signal output circuit, a signal delay circuit, an acousto-optic modulation driver and a coupling pulse circuit. The acousto-optic modulation driver is used to select an optical pulse signal from the seed optical signal output by the signal output circuit; the coupling pulse circuit is used to convert the optical pulse signal into an electrical pulse signal; the signal delay circuit is used to identify the pulse number of the electrical pulse signal and adjust the delay time of the acousto-optic drive signal that drives the acousto-optic modulation driver according to the pulse number, so that the pulse number of the optical pulse signal selected by the acousto-optic modulation driver is consistent with the preset pulse number. The embodiment of the present invention uses the optical pulse signal selected by the acousto-optic modulation driver as the effect feedback for adjusting the acousto-optic drive signal, thereby adjusting the delay of the acousto-optic drive signal, realizing self-calibration of the frequency-selective pulse, and improving the reliability and accuracy of the frequency-selective pulse calibration.

The utility model discloses an electrostatic discharge inductive coupling device which comprises an electrostatic pulse generating unit, an electrostatic discharge inductive coupling unit and / or a verification and expansion application unit, the electrostatic pulse generating unit is connected with the electrostatic discharge inductive coupling unit, and the electrostatic discharge inductive coupling unit is connected with the verification and expansion application unit. The utility model provides an electrostatic discharge inductive coupling device, which can further expand an electrostatic discharge test method to be applied to risk investigation of anti-interference performance of equipment and electromagnetic compatibility optimization design. Meanwhile, the device disclosed by the utility model can also realize verification of parameters such as field intensity, frequency and the like of an electrostatic pulse field and expanded application of inductively coupled pulses. In addition, the device disclosed by the utility model also has the functions of controlling the state of the micro-signal relay or transmitting to the sampling circuit module for measurement and calibration and the like in a non-contact voltage / current / energy coupling mode and the like.

The invention provides a Fabry-Perot sensor demodulation system and method based on a single-cavity double-comb fiber laser, and a demodulation device of the demodulation system comprises the single-cavity double-comb fiber laser comprising a pump light source, a wavelength division multiplexer, an erbium-doped fiber, a coupler, a saturable absorber and a polarization controller. Signals with different repetition frequencies and reference pulse light are output from the coupler; an amplification and isolation module; the light combining device is used for coupling multiple groups of emergent pulse light output by the system to be tested of the demodulation system and reference pulse light output by the amplification and isolation module; the photoelectric detector is used for converting the coupled pulse light into an electric signal; a processing unit that acquires information of each sensor based on an electrical signal that is a time domain signal; the to-be-tested system is used for receiving the signal pulse light output by the amplification and isolation module and outputting multiple groups of emergent pulse light with different first time delays, and multiple sub-pulse light of each group of emergent pulse light has different second time delays. As a result, a plurality of Fabry-Perot sensors can be demodulated.