25 results about "Transition edge" patented technology

The invention relates to the technical field of semiconductor integrated circuits, and discloses a bandwidth mismatch calibration system and method of a time-interleaved architecture ADC (Analog to Digital Converter). The system comprises N sub-ADCs, N bandwidth adjustment units and a controller. Firstly, a unified calibration signal is input into all sub-ADCs, and each sub-ADC samples the transition edge of the signal. The controller detects and determines a transition point error of each sub-ADC at the transition edge based on the sampling output of each sub-ADC. The controller calculates bandwidth adjustment code words for the corresponding sub-ADCs based on the difference between the error and a preset target value. The code word is used for driving the bandwidth adjusting unit to adjust the bandwidth of the corresponding sub-ADC, so that the bandwidths of all the sub-ADCs tend to be consistent through closed-loop feedback, and automatic and accurate calibration of bandwidth mismatch is realized.

Cooling compression plate (1) for maintaining an intercellular space (2) in a directly cooled accumulator (3) during cell swelling, comprising at least: - a first exterior wall section (4); - a second exterior wall section (5); and - an intermediate section (6) which extends from a first transition edge (7) with the first outer wall section (4) and a second transition edge (8) with the second outer wall section (5) in a spring space (9) formed between the outer wall sections (4,5); wherein the cooling compression plate (1) is a single piece, and wherein at least one of the outer wall sections (4,5) forms at least one cooling channel (11) with an adjacent cell (12) in an assembled state, and wherein a spring effect can be provided between the first outer wall section (4) and the second outer wall section (5) by means of the intermediate section (6), characterized in that the cooling channel is formed in an outer side of the respective outer wall section, which is a side facing away from the spring chamber.

The application discloses a BMC PHY device with built-in dynamic TTL level jump edge control and improved EMI, and relates to the field of digital IC design.The BMC PHY device with built-in dynamic TTL level jump edge control and improved EMI comprises a current mirror power supply module, which is used for controlling whether 8 currents are powered by a current mirror, and the current size of the 8 currents is different by one time, so that 256 power supply currents are obtained; and then 256 different output voltages with rising slopes are obtained; and the current mirror grounding module is used for controlling whether the 8 currents are grounded by a current mirror, and the current size of the 8 currents is different by one time, so that 256 grounding currents are obtained. Compared with the prior art, the application has the beneficial effect that the application is based on the purpose of optimizing the chip-level EMI output by changing the slope, and the chip-level EMI output is greatly optimized by combining a digital communication channel (CC line) of a BMC PHY chip, a built-in high-precision current mirror network and a frequency jitter algorithm in different working modes.

An impedance measurement circuit includes a voltage controlled oscillator (VCO) configured to generate an oscillation signal according to a power voltage present on a power rail. The impedance measurement circuit includes an edge sampler coupled to the VCO and configured to generate a first signal sampling the oscillation signal based on a first transition edge of a first sampling clock signal. The impedance measurement circuit includes an accumulator coupled to the edge sampler and configured to accumulate the first signal for generating a second signal based on a third transition edge of a second sampling clock signal. The impedance measurement circuit includes a transition detector configured to generate the second sampling clock signal based on detecting a second transition edge of the first sampling clock signal.

The invention discloses a synchronization method for servo communication and motor control of an EtherCAT bus, and the method comprises the steps: building a mapping relation between an auxiliary timer and a control period of a PWM signal generator, and mapping a physical synchronization signal Sync0 of the EtherCAT bus into an external trigger source of an input capture unit; when an effective jump edge of a physical synchronization signal Sync0 is detected in response, an input capture unit is used for locking a current instantaneous count value of an auxiliary timer into a capture register in real time under the condition that software interruption intervention is not carried out, and a reference timestamp is formed; the method comprises the steps of reading a reference timestamp in an interrupt service of a servo control period, calculating a phase offset based on a target phase relationship between the reference timestamp and a physical synchronization signal Sync0, and dynamically modulating a reloading value of a PWM signal generator in a next control period according to the phase offset.

The present application relates to the technical field of computer graphics, computational geometry and CAE simulation, and discloses a fillet surface recognition method and device based on a geometric model, equipment and a medium, the method comprises the following steps: performing virtual geometry processing on all edges of the surfaces in the geometric model to obtain transition edges on the recognition surface; determining the recognition surface meeting the fillet surface feature as a transition surface; selecting two connecting surfaces connected with the transition surface, and the two connecting surfaces are connected with two ends of the transition edge respectively, determining that the two connecting surfaces meeting the support surface feature are a first support surface and a second support surface respectively, and the support surface feature is a feature specific to the two support surfaces connected with the fillet surface; and determining that the transition surface making the first support surface and the second support surface smoothly transition is a fillet surface. The fillet surface recognition method can quickly recognize the fillet surface in the geometric model only through the edge information, greatly speeds up the recognition process, and is highly accurate in recognition.

This invention discloses a method and system for calculating the number of revolutions in a BLDC motor based on dynamic time window verification, belonging to the field of motor control technology. The method includes: acquiring Hall sensor signals from the BLDC motor and performing edge detection and debouncing processing to generate Hall transition edges; obtaining the current period by measuring the time interval between adjacent valid Hall transition edges based on the system clock; calculating the lower and upper bounds of the dynamic time window based on the current period and a dynamic adjustment coefficient; and performing three-level pulse discrimination based on the relationship between the arrival time of the Hall transition edge and the dynamic time window: triggering revolution count accumulation when the pulse is determined to be valid, blocking the pulse when it is determined to be a glitch pulse, and generating a compensation pulse and triggering revolution count accumulation when the pulse is determined to be lost. This invention solves the problems of insufficient anti-interference capability and lack of signal loss compensation mechanism in existing technologies under variable speed conditions and strong electromagnetic interference environments, significantly improving the accuracy and reliability of revolution count calculation.

The utility model relates to a steel door leaf panel and cover edge integrated forming device which comprises a transition edge machining device and a cover edge machining device. The transition edge machining device comprises a first cutter upper die component and a first cutter lower die component. The cover edge machining device comprises a second cutter upper die component, a second cutter lower die component and a third cutter lower die component. A hammering head is arranged at the bottom of the lower die part II; a table top is arranged in the middle of the third cutter lower die component. The second cutter lower die component and the third cutter lower die component are connected in a sliding mode in the vertical direction. The device has the beneficial effects that the mounting positions of the lower die component I and the cutter lower die component III can be exchanged, so that the mounting efficiency and the interchangeability of the device are improved; the second cutter upper die component, the second cutter lower die component and the third cutter lower die component are applied to different machining stages and located in the cover edge machining device, and the deployment efficiency of the device is improved. The transition edge machining device and the cover edge machining device do not interfere with each other and can operate simultaneously, and the production efficiency is improved.

This invention relates to the field of waveguide gas laser technology, specifically to a method and device for preferentially controlling the electrode electric field to prioritize the lowest-order waveguide mode through coating, comprising the following steps: S1: determining the beam waist position of the laser resonator; S2: preparing an insulating coating on the surface of the waveguide laser electrode plate corresponding to the beam waist position; S3: performing a gradient transition edge treatment on the insulating coating; S4: constructing an impedance matching compensation network at the electrode feed end in the insulating coating region. This invention, by setting an insulating coating, achieves localized reduction of the electric field intensity in the beam waist region; simultaneously, by constructing an impedance matching compensation network, it accurately compensates for the capacitance effect introduced by the coating, and through dynamic monitoring and adjustment, ensures that the standing wave ratio and discharge voltage fluctuations are within a minimal range, guaranteeing effective coupling of RF power and uniform and stable discharge, thereby improving the overall efficiency and reliability of the device.

The application discloses a kind of customer data processing method and system, it is related to data processing technical field.The method includes the state transition diagram of the power consumption event sequence of each regional power grid customer is constructed;Two-way state structure is constructed to state transition diagram, based on maximum transition probability path extraction atypical state sequence, and mark as regional task key frame state sequence;Collaborative state mapping matrix is constructed, and distributed state abnormal fragment with associated aggregation characteristics is identified;The time sequence coding of task key frame state sequence corresponding to the state abnormal fragment with associated aggregation characteristics in collaborative state mapping matrix is carried out, and structured feature set is generated;The clustering boundary of state node in state transition diagram and transition edge weight are revised based on structured feature set.

This invention relates to a testing method, system, computer device, and storage medium for electronic devices. The method includes: receiving user-defined test parameters through a graphical configuration platform; generating a structured test file based on the test parameters, the structured test file including a directed graph model consisting of nodes and transition edges to describe the test process, wherein the nodes indicate test states and / or test actions, and the transition edges indicate state triggering conditions; loading and interpreting the structured test file, generating standardized action instructions based on the interpretation results, converting the standardized action instructions into a control protocol for a specific physical test device, driving the electronic device to perform corresponding test actions according to the nodes of the structured test file, and transferring test states according to the transition edges defined in the directed graph model. This invention enables streamlined and automated testing of electronic devices.

The invention relates to a high-precision time synchronization method between devices, which comprises the following steps that: a master node broadcasts own serial data code streams in a broadcast mode, and receives serial data code streams returned by slave nodes in a time-sharing manner; the master and slave nodes receive and measure the data message segment of the serial data code stream to obtain the master node sending starting time T1, the master node receiving time T4, the slave node sending starting time T3 and the slave node receiving time T2; a data jump edge of a serial data code stream clock phase measurement section is accurately measured by adopting a phase shifting function of a clock phase-locked loop, and the time measurement resolution is improved by compensating the receiving time T4 of a master node and the receiving time T2 of a slave node; calculating a time deviation value offset between the slave node and the master node according to the master-slave receiving and transmitting time; and adjusting the local clock of the slave node and the phase of the slave node according to the calculation result of the time offset, thereby realizing subnanosecond high-precision time synchronization between the slave node and the master node of the whole network.

A communication method, apparatus and system, which can be applied to the technical field of communications, the method comprising: a reader-writer generates a first signal, the first signal being used for determining at least one of the following items: an initial position of a data signal, or a length of a chip in the data signal, the first signal being located before the data signal, and the first signal being adjacent to a first CP; wherein the first CP and the first chip have the same level, and the first chip is a chip adjacent to the first CP in the first signal; and the reader-writer sends the data signal to the equipment. According to the communication method provided by the invention, the influence of the CP on the detection accuracy of the jump edge in the indication signal can be reduced on the premise of ensuring relatively low power consumption of the A-IoT equipment, so that the error rate when a reader-writer transmits data to the A-IoT equipment is reduced.

Sensor device (10) comprising the following: at least one first sensor element (13) with a first detection direction configured to generate at least one first sensor signal (Sx, Sx1) based on the detection of a first magnetic field component of a varying magnetic field oriented in the first detection direction; at least one second sensor element (14) with a second detection direction, configured to generate at least one second sensor signal (Sy, Sx2) based on the detection of a second magnetic field component of the varying magnetic field, which is oriented in the second detection direction; a signal processing circuit (15, 16) configured to generate a first pulse signal (S1) based on the at least one first sensor signal (Sx, Sx1) and to generate a second pulse signal (S2) based on the at least one second sensor signal (Sy, Sx2); a fault detector (18) configured to detect at least one fault and to generate a fault signal indicating the at least one fault in response to the detection of the at least one fault; and an output generator (17) configured to receive the first pulse signal (S1) and the second pulse signal (S2), the error signal based on a first condition that the error detector (18) detects the at least one error, and simultaneously output a first output signal (OUT1) and a second output signal (OUT2), wherein, based on a second condition that the fault detector (18) does not detect the at least one fault, the output generator is configured to output the first pulse signal (S1) as the first output signal (OUT1) and to output the second pulse signal (S2) as the second output signal (OUT2), and wherein, in response to the first condition being satisfied, the output generator (18) is configured to keep the first output signal (OUT1) in a steady state and to output the second pulse signal (S2) as the second output signal (OUT2), wherein: the first pulse signal (S1) comprises several transition edges that define several first pulses, the second pulse signal (S2) comprises several transition edges that define multiple second pulses, and the first several transition flanks are synchronized with the second several transition flanks.

The invention relates to the technical field of logging, in particular to a method and a device for restoring a Man code signal of a logging instrument, equipment and a medium. The method comprises the following steps: acquiring a to-be-processed Manchester code signal curve output by a logging instrument, and carrying out differential processing on the Manchester code signal curve to obtain a differential curve; setting a window accumulation interval and an accumulation threshold value; determining all inflection points on the difference curve according to the window accumulation interval and the accumulation threshold; judging whether the Manchester code signal output by the logging instrument passes through the cable or not, if not, determining the point with the maximum absolute value in the points with the same value in the accumulation interval on the difference curve behind each inflection point as a jump edge, and if yes, determining each inflection point as the jump edge; and according to the hopping edge, restoring the MAN code signal curve to obtain a restored MAN code signal curve. The method and the device are used for solving the problems that the reduction effect of the received Man code signal under the condition of a long cable or poor cable characteristics is poor and the bit error rate of subsequent decoding is high when the Man code signal is processed in the prior art.

The invention discloses a data unvarnished transmission method and system based on clock tracking. The data unvarnished transmission method comprises the following steps: matching a clock tracking mode of an asynchronous cache circuit according to the linear rate of received serial data; the clock recovery circuit is controlled to analyze the serial data to obtain write-in data and a write-in clock; performing jump edge detection on the serial data to perform data recovery on the serial data to obtain a recovery data sequence and obtain a data rate of the recovery data sequence; writing the write-in data or the recovery data sequence according to the clock tracking mode, the write-in clock, the data rate and the local clock of the deserializer to obtain cache data; obtaining a frequency difference between the target tracking clock and a local clock according to the clock tracking mode, the write-in clock and the data rate, and adjusting the local clock to obtain a read clock; and obtaining read data according to the read clock so as to send the read data to a data receiving end, thereby reducing logic resources occupied in a data unvarnished transmission process.

This invention provides a calibration system and radar for delay calibration of TDC timing channels. The calibration system sends periodic signals to each carry-chain timing channel via a clock generator, enabling each carry-chain timing channel to monitor the transition edge of the same periodic signal. The calibration module subtracts the trigger times of the transition edges of the same periodic signal obtained by each pair of carry-chain timing channels to obtain the delay time between each pair of carry-chain timing channels. Thus, when calculating the time difference between the output times of any two carry-chain timing channels, the system calibrates the time difference based on the delay time, improving the accuracy of the time difference output by the carry-chain timing channels and thereby improving the radar monitoring accuracy.

The application discloses a TES detector containing a half-frame parallel superconducting electrode structure, and belongs to the technical field of superconducting electronics. The detector is characterized in that a half-frame niobium lead with a higher superconducting transition temperature is arranged on the surface of an aluminum-manganese alloy thin film, so that the current distribution in the thin film under a bias condition is changed, and the normal resistance of the thin film is significantly reduced. By adjusting the number, spacing and size of the half-frame electrodes, the resistance of the thin film can be flexibly controlled, the size and thermal conductivity characteristics of the detector can be optimized, and the detector can meet different application requirements. The application significantly improves the performance of the aluminum-manganese alloy superconducting transition edge detector, makes the application of the detector in the related field more efficient, and provides a new possibility for the flexible design and thermal conductivity optimization of an array detector.

Methods, systems, and devices for divided clock control are described. An even clock signal associated with transitioning edges of even-indexed pulses of a global clock signal and an odd clock signal associated with transitioning edges of odd-indexed pulses of a global clock signal may be received. An indication of whether a received command was received on a transitioning edge of an even-indexed pulse may be received. Based on the indication, whether to enable a propagation of the even clock signal to a first delay logic associated with even-indexed pulses or a second delay logic associated with odd-indexed pulses may be determined. Based on the determining, whether to delay a propagation of the command using the first delay logic and the even clock signal or the second delay logic and the odd clock signal may be determined.

This invention provides a mechanical and optical dual-modal sensor and intelligent detection method. The technical solution involves separately mounting flexible photoelectric detection patches and flexible mechanical sensing patches on different flexible substrates, and introducing a high-stiffness optical window in the photoelectric measurement area to cut off the deformation transmission path and stabilize the optical path. Simultaneously, a time-series collaborative sampling mechanism under a unified time reference is introduced into the control and processing module to avoid the light source-driven transition edge of the mechanical signal sampling window. Furthermore, at the data processing level, an exponential compensation model based on the dynamic response characteristics of the physical system is established, and the steady-state value of the system is extracted by inverse fitting using unstable transient observation sequences, thereby reconstructing the true muscle force mechanical signal. This invention can solve the technical problems of mechanical deformation coupling and electromagnetic crosstalk between the photoelectric and mechanical modes in existing technologies.

The application relates to the fields of printed circuit board design and processing technology, and particularly relates to a printed circuit board and a printed circuit board assembly. The printed circuit board comprises: a substrate; and a transition edge located at at least one board edge of the substrate; the substrate is provided with a stress-sensitive area adjacent to the transition edge, at least one welding site for welding a stress-sensitive component is arranged in the stress-sensitive area, and a groove structure is arranged on the transition edge, the groove structure is located at a side of the welding site in a direction perpendicular to the extension direction of the transition edge and is adjacent to the substrate, and is used for limiting the transmission of stress generated when the transition edge is removed to the welding site. By actively weakening the local structure of the transition edge through the groove structure to limit the stress transmission, the influence of stress release when the transition edge is removed on the stress-sensitive component of the adjacent welding site is reduced, the damage risk of the stress-sensitive component is reduced, and the yield is improved.

The invention discloses a method for improving drilling burrs caused by the height difference of PCB edges, and belongs to the technical field of drilling in the PCB manufacturing process, and the method comprises the following steps: a previous procedure, pressing, edge cutting, data measurement, isolation groove drilling, drilling, deburring, inspection and confirmation, and a next procedure, the drilling of the isolation groove is specifically as follows: an isolation groove penetrating through the board surface is drilled in the position, surrounding a heat capacity block in the inner layer of the PCB, of the PCB board surface, the isolation groove is of an arc-shaped structure and comprises an isolation groove long edge and an isolation groove short edge, the two ends of the isolation groove long edge extend outwards towards the position direction of the heat capacity block to form transition edges, the transition edges extend outwards to form the isolation groove short edge, and the isolation groove short edge extends outwards towards the heat capacity block; the method is simple and easy to implement, the height difference position of the hot melting block is effectively isolated, stress transmission caused by unevenness is reduced, the bottom of the drill hole is not suspended, and the problem of drill hole flashing caused by the height difference is effectively solved.

A circuit includes one or more de-skew stages. Each of the one or more de-skew stages is configured to adjust a transition edge of a signal and includes a single inverter, a header configured to couple a first supply voltage to the single inverter, a footer configured to couple a second supply voltage to the single inverter, a capacitor coupled to an output of the single inverter, and a switch circuit coupled between the output of the single inverter and the capacitor.

This invention discloses a signal receiving method, a signal receiving device, and a communication system. The signal receiving method includes: receiving a command feedback signal, the command feedback signal including a start bit and information bits following the start bit; generating a detection signal based on the command feedback signal, the detection signal including multiple detection windows opened after the end position of the start bit, the multiple detection windows corresponding one-to-one with multiple transition edges of the information bits, and the position of the (n+1)th detection window being determined based on the transition edge detected within the nth detection window, where n is a positive integer. This invention determines the position of the (n+1)th detection window by using the transition edge detected within the nth detection window, thereby reducing the offset between the detection window and the transition edge, and preventing the offset of the detection window from accumulating, thus significantly improving the data reception success rate.

This invention discloses a method for fast range ambiguity resolution of short-period direct-sequence spread spectrum signals used in radar measurement. The method comprises: 1) designing a square wave period based on the maximum unambiguous measurement range requirement; 2) transmitting a direct-sequence spread spectrum signal modulated with a square wave at the transmitting end; 3) estimating the code phase within the spread spectrum pseudocode period at the receiving end using fast circular correlation; and 4) despreading using the spread spectrum pseudocode phase estimation result and accumulating energy within the spread spectrum pseudocode period to obtain N. s The energy accumulation results are as follows: 5. The energy accumulation results within adjacent spread spectrum pseudocode periods are used to search for the square wave transition edge using a differential method to complete target detection decision and distance estimation; This invention can effectively improve the maximum unambiguous distance for capturing high dynamic weak signals, while resolving the contradiction between computing resources and acquisition time.