139 results about "Phase adjustment" patented technology

The invention relates to the technical field of phase adjustment, and discloses a synchronous phase modifier phase modulation method adopting a digital twinborn model, and the method comprises the steps: carrying out the modularization processing of a synchronous phase modifier, and obtaining a system module; identifying a power grid topological structure of the power system, and collecting load data, generator data and line parameters of the power system to construct a simulation model of the power system; integrating the system module and the simulation model to obtain an integrated model; performing impedance adjustment on the module integration system to obtain an impedance adjustment model; collecting system data of the synchronous phase modifier, and analyzing control characteristics of the synchronous phase modifier; and executing the phase adjustment reference of the impedance adjustment model by using the control characteristics, obtaining a digital twin model when the model precision meets the preset model precision, analyzing the real-time power data by using the digital twin model, and performing phase adjustment on the power system based on the analysis result. The accuracy of phase adjustment of the synchronous phase modifier can be improved.

In some embodiments, the phase adjustment circuit includes a clock generator that is configured to generate a sinusoidal clock signal, and may include a variable amplifier that is configured to receive the clock signal output from the clock generator as an input, output an amplitude-adjusted sinusoidal differential clock signal, and output an amplitude-adjusted in-phase signal. The phase adjustment circuit may include an adder that is configured to output a differential signal obtained by adding the in-phase signal to each of a positive phase side and a negative phase side of the differential clock signal output from the variable amplifier, a differential transmission line that includes two transmission lines configured to transmit the differential signal output from the adder, and a terminal circuit that is configured to terminate the differential transmission line where a signal is output from a terminal of any one of the two transmission lines.

The invention discloses a multi-protocol self-adaptive management docking station core board control method and system, and belongs to the technical field of docking station core board monitoring control, and the method comprises the steps: analyzing the stability risk analysis necessity of a docking station core board, analyzing the stability risk score of the docking station core board, and determining the stability risk of the docking station core board; and performing control optimization adjustment on the docking station core board based on the stability risk score of the docking station core board, performing protocol layer clock recovery circuit sampling phase drift analysis, analyzing a protocol layer clock recovery circuit sampling phase drift characterization factor, and executing control adjustment of sampling phase drift. According to the method, the stability and reliability of system operation can be improved, the link retraining frequency is reduced, sampling phase adjustment is optimized, sampling point dislocation, inter-frame phase lock out-of-step and systematic communication faults are prevented under the condition of multi-protocol concurrent working, and long-term stable operation and multi-protocol compatibility of the docking station core board are guaranteed.

This disclosure relates to a driving circuit, a driving chip, and a display device. The driving circuit includes a clock module and M channel modules. The clock module generates N first clock signals with a phase difference between each pair of signals. Each channel module includes a phase adjustment module, a PWM generation module, and a selection module. The phase adjustment module is connected to the clock module and is used to phase-shift the N first clock signals to obtain N second clock signals. The PWM generation module is connected to the clock module and the phase adjustment module and is used to generate a first PWM signal based on a reference clock signal and a PWM fundamental frequency, and to generate a second PWM signal based on the reference clock signal, a target clock signal, and the PWM fundamental frequency. The selection module is connected to the PWM generation module and is used to select either the first PWM signal or the second PWM signal for output based on a first selection signal, as the target PWM signal. This disclosure simplifies the circuit structure and reduces the circuit footprint.

An antenna array apparatus, and a phase-set configuration method, apparatus, and device. In the present application, the antenna array apparatus comprises a plurality of phase shifters and antenna elements respectively connected to the phase shifters. Each phase shifter is configured with a phase set, the phase set of each phase shifter comprises one or more phase values, and the phase sets of the respective phase shifters are not completely identical. Any one of the phase shifters is configured to adjust the phase of the connected antenna element on the basis of the phase set of the phase shifter. Because the phase values in the phase sets of the respective phase shifters are not completely identical, exhibiting a "non-uniform" characteristic, the phase adjustment made by each phase shifter to the antenna array connected thereto is not concentrated on several identical phase values. The antenna elements connected to the respective phase shifters have different phase values, so that the antenna array apparatus can flexibly adjust the phases of the antenna elements, thereby achieving improved beamforming performance and enhancing the beamforming capability of the antenna array apparatus.

The invention provides a clock synchronization circuit and system which can be applied to the technical field of signal transmission. The clock synchronization circuit comprises: a first node comprising: a first port unit configured to send downlink data to a second node via a downlink according to a first sending reference clock obtained based on an input reference clock, and obtain a first recovery clock according to uplink data returned by the second node via an uplink, performing phase adjustment on the first sending reference clock according to the first phase adjustment step length number; a second port unit configured to output a first measurement reference clock according to an input reference clock; the first phase measurement unit is configured to sample an input reference clock and a first recovery clock according to a first measurement reference clock and output a first phase adjustment step length number; and the second node is configured to obtain the second recovery clock according to the downlink data received by the downlink, and send the uplink data through the uplink according to the second sending reference clock.

Techniques and apparatus for wireless communication are provided. An example method generally includes: transmitting at least one transmit waveform via at least one transmit antenna; receiving a first receive waveform via a first receive antenna; receiving a second receive waveform via a second receive antenna, the first receive waveform and the second receive waveform corresponding to the at least one transmit waveform; determining at least one tuning parameter based on the first received waveform and the second received waveform, wherein the at least one tuning parameter is associated with at least one of a phase difference or a time delay between the first received waveform and the second received waveform; and configuring at least one of a phase adjustment element or a timing adjustment element of a transmit chain coupled to each of the at least one transmit antenna based on the at least one tuning parameter.

The invention discloses a programmable logic chip supporting single-ended clock input and electronic equipment. The chip comprises a function module and a clock module, and the clock module comprises a first clock source used for generating a first single-ended clock signal; the clock selection unit is used for selecting the first single-ended clock signal or the second single-ended clock signal to be output according to a set selection signal; the clock generation unit is used for performing frequency conversion and phase adjustment on the clock signal output by the clock selection unit according to a set configuration signal to generate one or more single-ended output clocks; the clock distribution unit is used for outputting one or more single-ended output clocks generated by the clock generation unit to corresponding functional modules according to a set control signal; and the clock control unit is used for generating a selection signal, a configuration signal and a control signal according to preset configuration information or externally input configuration information. According to the integrated clock module, the problem that an existing programmable logic chip depends on an external clock chip is solved.

This invention relates to the field of microgrid control technology and discloses a method and system for synchronizing microgrid inverters based on satellite time synchronization. The method includes at least: receiving a satellite time synchronization signal and preprocessing it to obtain a global time reference signal; acquiring real-time operating parameters of each inverter within the microgrid and calculating the real-time phase offset of each inverter based on the global time reference signal and each real-time operating parameter; generating a synchronization phase angle for the corresponding inverter based on each real-time phase offset; acquiring real-time interaction data of each inverter and updating each initial phase adjustment command based on the real-time interaction data and the global synchronization phase angle to obtain a target phase adjustment command for the corresponding inverter; and adjusting the output voltage of the corresponding inverter using each target phase adjustment command. This invention improves the synchronization control accuracy and operational stability of multi-inverter clusters in microgrids.

The invention provides an acoustic transducer module and an acoustic transducer module directivity control method, and relates to the technical field of acoustic equipment. The module comprises a module rear cavity, a phase adjusting circuit, a plurality of sound production units and a module front cavity, the module rear cavity is used for accommodating a plurality of sound production units and a phase adjusting circuit; the phase adjustment circuit comprises at least one signal input end and a plurality of phase adjustment branches, the signal input end is used for receiving an input electric signal, the plurality of phase adjustment branches are respectively used for adjusting the phase of the electric signal, and each phase adjustment branch is respectively connected to at least one sound production unit in the plurality of sound production units; the plurality of sound production units are used for converting the received electric signals into sound signals; the module front cavity comprises a radiation port which is used for converging and radiating sound signals to the outside. According to the invention, the change of the sound phase can be realized through the phase adjustment circuit in a hardware structure manner, so that the directivity of sound radiation is controlled without depending on any complex algorithm or high-computing-power chip.

A high-frequency front-end circuit (10A) that has the following features: a triplexer circuit (20A) comprising a first transmit filter (211), a receive filter (221) and a second transmit filter (212), wherein one end of the first transmit filter (211) and one end of the receive filter (221) and one end of the second transmit filter (212) are connected to each other by a common junction; a low-noise amplifier (LNA); and a phase adjustment circuit (30A) that is connected between the receive filter (221) and the low-noise amplifier (LNA), where the first transmit filter (211) is set such that a fundamental frequency of a first transmit signal in a first communication band falls into a passband of the first transmit filter (211), the receive filter (221) is set such that a fundamental frequency of a received signal in the first communication band falls into a passband of the receive filter (221), the second transmit filter (212) is set such that a fundamental frequency of a second transmit signal in a second communication band, which differs from the first communication band, falls into a passband of the second transmit filter (212), where the transmission of the second transmit signal and the reception of the received signal are carried out simultaneously, wherein, assuming that a Smith chart is divided into four quadrants by a first line representing pure resistance and by a second line connecting points along an outer periphery of the Smith chart, each with a phase of 90°, and a reference impedance point, the phase adjustment circuit (30A) performs a phase adjustment such that, at a harmonic frequency of the second transmit signal, a quadrant in which a phase of the low-noise amplifier (LNA) is present when viewed from the receive filter (221), and a quadrant in which a phase is present when viewed from the low-noise amplifier (LNA) towards the receive filter (221), are not in a conjugate relationship.

The invention discloses a broadband multichannel amplitude-phase error real-time compensation and synthesis method and system, relates to the technical field of broadband communication, and ensures that the amplitude-phase error of a full frequency band can be detected by injecting a broadband standard pilot signal which is completely matched with the bandwidth of a working signal; the standard pilot signal and the working signal are transmitted in the same path, and the amplitude-phase change of the standard pilot signal can truly reflect the error state of the working signal, so that the problem that the narrow-band pilot cannot cover the full-band error is solved; by monitoring the amplitude-phase error change rate, the updating period of compensation parameters is adaptively adjusted, and it is ensured that the compensation response speed is always higher than the error change speed; a real-time compensation parameter is generated based on the dynamic amplitude-phase error spectrum, so that the problem of lag failure of an offline parameter is avoided; a multi-frequency-point parallel processing mechanism is adopted, a broadband working signal is decomposed into a plurality of frequency components to synchronously execute amplitude-phase adjustment, the adjustment time consumption is consistent with that of a single-path signal, and compared with a traditional serial adjustment mode, the efficiency is improved, and the real-time processing requirement of the broadband signal is met.

The application provides a phase shifter phase adjusting device and a base station antenna. The phase shifter phase adjusting device comprises a first screw rod, a first nut seat, a first bearing, a second screw rod, a first sliding sleeve and a second sliding sleeve. The first end of the first screw rod is drivingly connected to a driving unit. The first nut seat is screwed on the outside of the first screw rod. The inner ring of the first bearing is mounted on the first nut seat. The outer ring of the first bearing is mounted on the second screw rod. The second screw rod is slidably sleeved on the outside of the first screw rod. The first screw rod has a first guide groove on the outside. The second screw rod has a first guide rib on the inside. The first sliding sleeve is sleeved on the outside of the first screw rod. The second sliding sleeve is sleeved on the outside of the second screw rod. The second sliding sleeve is slidably sleeved in the first sliding sleeve. The first nut seat is fixedly connected to the second sliding sleeve. The first sliding sleeve has a first guide part on the inside. The second sliding sleeve has a second guide part on the outside. The phase shifter phase adjusting device and the base station antenna are compact in structure and small in space occupation.

The present invention relates to a steering system that well controls a reaction force. This steering system is an electric power steering system provided with a reaction force device and a steering device. In this steering system, a reaction force is controlled on the basis of a steering angle deviation, which is the difference between a target steering angle and an actual steering angle. In addition, the steering angle deviation is a phase-adjusted value. As a result, it is possible to suppress a delay in the influence of a change in the steering angle deviation on the reaction force, and to enable a driver to well know the steering state of the wheels by means of the reaction force applied to the steering operation member. And the reaction force can be well controlled.

This invention discloses a displacement sensor circuit for monitoring settlement in a water diversion tunnel. The sensor circuit includes a compensation circuit, a monitoring circuit, a phase adjustment circuit, and a gain amplification circuit. The monitoring circuit is connected to the compensation circuit, the phase adjustment circuit, and the gain amplification circuit. The compensation circuit is connected to the phase adjustment circuit and the gain amplification circuit. The phase adjustment circuit or the gain amplification circuit adjusts the phase or amplitude of the signal output by the detection probe based on the type of the compensation signal, either forward or reverse. The monitoring circuit monitors the DC voltage signal output by the detector before and after compensation and outputs a switching signal based on the monitoring result. The compensation circuit outputs a compensation signal.

A radio wave control system includes a phase adjustment plate that transmits a radio wave from a second main surface to a first main surface and focuses the radio wave on a focal point; and a reflection plate installed at a position irradiated with the radio wave transmitted through the phase adjustment plate.

The invention relates to an interface circuit of a memory, a retraining method, a memory controller, a device and a non-transient storage medium. The interface circuit comprises a receiving module, an adjustable delay module, a sampling module and a phase adjustment module, the receiving module is respectively connected with a first input end of the sampling module and a first end of the adjustable delay module, a second end of the adjustable delay module is connected with a second input end of the sampling module, and an output end of the sampling module is connected with an input end of the phase adjusting module; the output end of the phase adjusting module is connected with the control end of the adjustable delay module; wherein the receiving module is used for receiving a data signal and a clock reference signal, inputting the data signal to the sampling module, delaying the clock reference signal through the adjustable delay module, and inputting the delayed clock reference signal to the sampling module; and the phase adjustment module is used for generating a phase adjustment signal according to the output signal of the sampling module and adjusting the adjustable delay of the adjustable delay module according to the phase adjustment signal.

A method, system, and storage medium for optimizing the layout of blade vibration monitoring sensors include: S100, obtaining geometric constraints and vibration assessment strategy constraints for the sensor layout; S200, generating sensor phase sequences based on geometric constraints; S300, determining multiple vibration orders to be analyzed; S400, for each vibration order, constructing a coefficient matrix for vibration response estimation based on the sensor phase sequence and the total number of cycles to be calculated; S500, for each vibration order, calculating the condition number of the product of the coefficient matrix and its transpose; S600, selecting the maximum value of the condition number as the evaluation parameter of the current sensor phase sequence; S700, adjusting the sensor phase sequence based on the phase adjustment step size under geometric constraints, and re-executing S300-S600; S800, selecting the minimum value among all evaluation parameters and outputting its corresponding sensor phase sequence as the optimization result.

The application relates to a digital frequency synthesizer, a signal compensation method, an SOC chip and electronic equipment, and belongs to the integrated circuit field.The digital frequency synthesizer comprises a digital frequency synthesis unit, a phase compensation unit and a phase adjustment unit; the digital frequency synthesis unit is used for generating a first clock signal with a first specified duty cycle according to an externally input first digital phase enable binary code and a multi-path initial phase clock signal; the phase compensation unit is used for generating a target compensation clock signal with a corresponding phase width according to required phase accuracy; and the phase adjustment unit is used for generating an output clock signal with a second specified duty cycle according to the target compensation clock signal and the first clock signal. The first clock signal is compensated by generating the target compensation clock signal with the required phase width, so that a clock signal with an arbitrary duty cycle can be output, and the problem that the existing digital frequency synthesizer can only output a clock signal with a specific frequency is effectively improved.

Clock domain phase adjustment techniques and systems for memory operations are described. In one example, a physical memory is communicatively coupled to a physical layer via a first clock domain and a memory controller is communicatively coupled to the physical layer via a second clock domain that is different than the first clock domain. A buffer is implemented in the physical layer. The buffer is configured to set a phase adjustment for a latency setting between the first and second clock domains. The phase adjustment is based on whether a mismatch has occurred in data output by the buffer to the memory controller based on a comparison to the latency setting.

The invention provides a phased array driving control method, a time schedule controller, a phased array driving method and a phased array driving system, belongs to the technical field of phased arrays, and can solve the problems that an existing phased array antenna is low in beam flexibility and low in scanning speed. According to the driving control method of the phased array, the phased array comprises at least one phase adjusting unit; the phase adjusting unit comprises a plurality of grid lines and a plurality of data lines; the grid lines and the data lines are crossed to define a plurality of phase shift regions; each phase shift region is provided with a switch element and a phase shift unit; the switch elements in the same row are connected with the same grid line, and the switch elements in the same column are connected with the same data line; the control method comprises the following steps: controlling each phase adjustment unit; the step of controlling any phase adjusting unit comprises the following steps of: controlling the phase shifting unit to be written into driving voltage line by line; and controlling the phase shift units in any row to be written with the driving voltage, comprising: in response to the data lines being written with the driving voltage, controlling the gate driver to provide scanning signals to the gate lines.

The invention discloses a hybrid intelligent reflector system based on FPGA centralized control. The system comprises a reflective array layer, a control layer, a communication feedback layer and an energy management module. The reflective array layer reflects the incident wave signal to a target direction through active amplification and phase adjustment; the control layer adopts an FPGA centralized control structure, establishes a channel model based on channel state information, executes a beam forming algorithm and phase matrix calculation, generates a target phase control matrix and a power distribution scheme, and adjusts a gain coefficient of the reflective array layer; the communication feedback layer extracts channel estimation parameters and carries out channel data reconstruction; and the energy management module transmits a real-time load signal of the reflective array layer to the control layer, receives a control level signal of the control layer, and cooperatively adjusts the power and phase of the reflective array layer. According to the invention, on the basis of a centralized control architecture and an energy adaptive management mechanism of the FPGA, signal amplification compensation, intelligent beam direction regulation and control and dynamic power distribution are realized.

The invention provides an angular velocity detection system and method based on weak measurement, which can be applied to the technical field of quantum sensing and the technical field of optical gyroscopes. The system comprises a laser emitting initial light; the front selection module performs phase adjustment on two parts of light in the initial light; the first optical resonant cavity transmits the first path of light along an anticlockwise path; the second optical resonant cavity transmits the second path of light along a clockwise path; the post-selection module couples the first path light with a first part of light in the second path light to obtain first interference light; the detection module detects the first interference light to obtain first light intensity; the processor obtains a linear coefficient according to the preset phase, the initial light intensity of the initial light and the transmission coefficient; according to the first light intensity, the linear coefficient and the preset phase, the rotation angular velocity is obtained, the optical microcavity serves as a sensing unit of the gyroscope, the sensing performance of the integrated optical gyroscope is enhanced through the weak measurement technology, and the detection precision of the rotation angular velocity is improved.

The application provides an electromagnetic actuating device and a camshaft phase adjustment device. The electromagnetic actuating device comprises a housing (H) and at least one execution unit. The execution unit comprises an electromagnet (10) and a pin partially extending out of the housing (H) and used to reciprocate in an axial direction (A) under the drive of the electromagnet (10). The execution unit further comprises a magnetic element and a magnetic field detection device used to detect the position of the pin. The magnetic element and the magnetic field detection device are both arranged stationary relative to the housing (H). The pin is arranged axially spaced from the magnetic element during the movement away from or close to the magnetic element and affects the magnetic field around the magnetic element. The magnetic field detection device is used to detect the change of the magnetic field signal around the magnetic element so as to determine the position of the pin in the axial direction (A). The electromagnetic actuating device according to the application is simple in structure and high in reliability.

This invention proposes a delay chain structure for a DDR PHY and its delay control method, comprising: decoupling the phase adjustment function and the skew adjustment function into two independent delay sub-modules in the delay chain structure; sharing a phase delay sub-module by multiple skew delay sub-modules; since the number of delay units required for skew adjustment is less than that for phase adjustment, and the area of ​​the skew delay sub-module is smaller than that of the phase delay sub-module; after the phase adjustment of the command signal or data signal by a phase delay sub-module, each bit of each address signal, control signal and input data is distributed to multiple skew delay sub-modules for independent skew adjustment; thereby effectively reducing the wiring difficulty and reducing the area of ​​the DDR PHY by reducing the number of phase delay sub-modules.

The invention discloses a multipath amplitude phase adjusting device, which comprises supports, PCBs, coupling scribing pieces and clamping devices, and is characterized in that the number of the supports is two, the PCBs are arranged on the wall surfaces of the two supports, and the wall surface of each PCB is provided with a plurality of branch slow-wave microstrip lines which are distributed at intervals; the plurality of branch slow-wave microstrip lines are concentrically arranged around a first shaft, the coupling slip sheet is arranged on the upper wall of the PCB, the coupling slip sheet is provided with a power amplifier network line matched with the microstrip lines, one end of the coupling slip sheet is pivotally mounted on the PCB through the first shaft of the clamping device, and the clamping device is used for driving the coupling slip sheet to swing around the first shaft as the axis. The position of the coupling slip sheet on the branch slow-wave microstrip line is adjusted; and the first shaft is provided with an input line matched with the power amplifier network line. Under the requirement of the same phase adjustment quantity, the branch slow-wave microstrip line and the coupling slip sheet are coaxially arranged. The arc track length required by using the slow-wave microstrip line is shorter than that required by using a common microstrip line or a cable.

The present disclosure relates to a phase shifter for antenna apparatuses. Particularly, the phase shifter includes a dielectric panel for phase adjustment (hereinafter referred to as “phase dielectric”) movably disposed at a branch point of a transmission line disposed to be spaced apart from one surface of a reflecting panel, a dielectric panel for impedance matching (hereinafter referred to as “impedance dielectric”) fixedly disposed parallel to one side of the phase dielectric, and a moving clamp configured to move the phase dielectric. The phase dielectric has an impedance matching step stepped such that an air layer is formed on a surface facing the reflecting panel, thereby providing an advantage of preventing the exterior of the transmission line from being complicated.

The invention provides a control device and a calculation device capable of adjusting composite vibration in a machine tool. A control device for controlling a machine tool includes: a vibration command generation unit that generates a vibration command for vibrating a tool or a workpiece of the machine tool; a relative vibration command generation unit that generates a relative vibration command that vibrates the tool and the workpiece relative to each other; and a vibration phase adjustment unit that adjusts the vibration phase of at least one of the vibration command and the relative vibration command on the basis of the vibration command and the relative vibration command.

Methods, systems, and devices for wireless communications are described. In some systems, a first wireless communication device (e.g., a user equipment (UE) or network entity) may adjust a phase for transmission between a first data transmission and a second data transmission. The phase adjustment may cause phase discontinuity between slots. To support phase estimation at a second wireless communication device, the first wireless communication device may repeat a data symbol modulation signal from the first data transmission in the second data transmission. For example, the data symbol modulation signal may be transmitted via a first resource element (RE) corresponding to a frequency resource of the first data transmission, and the repetition may puncture a second RE corresponding to the same frequency resource of the second data transmission. The second wireless communication device may perform phase estimation using the repetition of the data symbol modulation signal.

Techniques and apparatus for wireless communication are provided. An example method generally includes: transmitting at least one transmit waveform via at least one transmit antenna; receiving a first receive waveform via a first receive antenna; receiving a second receive waveform via a second receive antenna, the first receive waveform and the second receive waveform corresponding to the at least one transmit waveform; determining at least one tuning parameter based on the first received waveform and the second received waveform, wherein the at least one tuning parameter is associated with at least one of a phase difference or a time delay between the first received waveform and the second received waveform; and configuring at least one of a phase adjustment element or a timing adjustment element of a transmit chain coupled to each of the at least one transmit antenna based on the at least one tuning parameter.