25 results about "Local circuit" patented technology

The invention relates to the technical field of signal processing, in particular to a local circuit of an electronic system or electronic equipment for digital information transmission, and provides a front-end receiving circuit. The circuit comprises a first-stage amplifier and a second-stage amplifier, wherein the first-stage amplifier comprises an input transistor pair, a cross-coupled load arranged on the load side of the input transistor pair and an adjustable resistance-capacitance unit arranged on the bias side of the input transistor pair; the second-stage amplifier is used for carrying out first-time swing amplification on the output differential signal of the first-stage amplifier under the action of the bias current source, so that the common-mode level of the output differential signal of the first-stage amplifier is increased to the common-mode level of the output differential signal of the second-stage amplifier; and the third-stage amplifier is used for carrying out second-time swing amplification so as to increase the common-mode level of the output differential signal of the second-stage amplifier to the common-mode level of the output differential signal of the third-stage amplifier. Therefore, the high-efficiency front-end receiving circuit capable of overcoming waveform distortion is realized.

A monitoring apparatus is for an internodal transport container. A proximity sensor is mounted to a door actuator and to a door or container panel. A tamper-evident local circuit with a processor detects relative movement of the actuator and the panel. A transmitter transmits an alert radiation signal with an alert of if there is movement of the actuator indicating opening of a container door or tampering with the apparatus. The sensor has a first component for mounting to an internodal container locking bar, and a second component part of the local circuit 10 for mounting to a door panel. The first component in some examples snap fits to the bar and has a rotatable component which is retained by a retainer attached to a housing which is in turn attached to a container door. There is therefore no need to attach anything to the bar.

The application discloses a circuit pre-training method and device based on a graph neural network and electronic equipment, comprising the following steps: for a large-scale circuit, a circuit network graph is constructed, a random walk road is generated, and the road is used as a sample for model training; a node2vec model is trained using the road sample; a model with the minimum loss function value is selected as an optimal model; and the optimal model is loaded, and representation vectors of all nodes are output and saved. In the application, the node2vec pre-training model of the graph neural network is used, the information of a long-distance standard unit is fully absorbed to absorb local circuit structure features, deep representation of nodes is automatically learned from the circuit structure, and tedious manual feature engineering is avoided, thereby providing high-quality representation vectors for a downstream model. The node representation learned by the node2vec model is a task-independent general feature, can be flexibly applied to various downstream tasks, and provides support for subsequent circuit analysis and optimization design work.

The utility model discloses an LED segment code screen display panel detection bench based on a single-chip microcomputer, which belongs to the field of detection devices and comprises a test base, a test support is mounted at the upper end of the test base, an electric push rod is mounted on the side wall of the test support, and a retention plate is mounted at the output end of the electric push rod. Test pressing plates are installed at the two ends of the retention plate, a display panel is conveniently fixed through the test pressing plates and the retention tray, so that the stability of the display panel is conveniently kept, the sliding test pressing plates are limited through the auxiliary sliding plate, so that the test pressing plates are conveniently kept stable during sliding, and meanwhile, through the acousto-optic detector and the acousto-optic alarm, the display panel can be conveniently tested. According to the display panel, the local circuit smoothness of the display panel can be conveniently and visually displayed, so that the non-smooth local unit of the circuit of the display panel can be conveniently and quickly displayed, and the detection plate and the probe can be conveniently maintained through the top opening cover and the side cover.

A recording medium storing a program for causing a computer to execute: acquiring a first quantum circuit expressing an action of a time evolution operator regarding a target problem, a second quantum circuit having parameters and a smaller number of quantum gates than the first quantum circuit, and a third quantum circuit defining one or more quantum states being a part of quantum states regarding the target problem, in which each of the first, second, and third quantum circuits has a first size; creating first, second, and third local circuits each having a second size, by respectively reducing sizes of the first, second, and third quantum circuits to the second size smaller than the first size; calculating solutions of the parameters, so as to minimize a value of a cost function for each quantum state; and setting a quantum circuit expressing the action of the time evolution operator.

The invention discloses a flexible and stretchable wiring structure and a phototherapy skin patch, and relates to the technical field of flexible and stretchable electronics. The wiring structure comprises a stretchable base material and a wiring part formed on the stretchable base material, wherein the wiring part is of a stretchable structure and comprises a single wiring structure which is formed by mutually connecting at least two single S-shaped conductive circuits which are laid in parallel. According to the embodiment of the invention, the wiring part is a single stretchable wiring structure formed by mutually connecting at least two single S conductive circuits laid in parallel, and compared with a traditional single S wiring structure, the single wiring structure is formed by interweaving and connecting multiple circuits in parallel, so that the single S conductive circuit can be connected in parallel under the condition that a local circuit is excessively stretched to cause an open circuit; other lines in the parallel structure can still ensure that the whole wiring part keeps conductive performance, and the risk of open circuit caused by stretching of the wiring part is effectively reduced.

The invention discloses a circuit board electro-coppering tank device, and belongs to the technical field of circuit boards, the circuit board electro-coppering tank device comprises a liquid storage box, the liquid storage box is vertically arranged in a shell, the liquid storage box is rotatably connected with the shell, a magnet is horizontally arranged on the lower surface of the liquid storage box, one side, used for adsorbing an iron part on a circuit board, of the magnet faces the shell, and the other side, used for adsorbing the iron part, of the circuit board faces the shell. The other side of the magnet is fixedly connected to a mounting base, the two sides of the mounting base are in lap joint with blocking strips correspondingly, the blocking strips are coaxially and fixedly connected into the shell, through grooves with the area larger than that of the mounting base are formed in the upper sides and the lower sides of the blocking strips correspondingly, and a partition plate is horizontally arranged below the lower surface of the mounting base; a spring is fixedly connected between the partition plate and the mounting base, an inserting rod is vertically and fixedly connected to the face, close to the liquid storage box, of the mounting base, the lower end of the inserting rod is vertically inserted into the two limiting rods, and the upper side and the lower side of the liquid storage box are each vertically and fixedly connected with two symmetrical limiting rods; a pushing assembly used for pushing the magnet to the liquid storage box is arranged on the partition plate. The method can avoid the situation that an electroplated layer cannot be formed locally on the circuit board.

The invention relates to the technical field of intelligent power grids, in particular to an intelligent monitoring system and method for an intelligent insulation power distribution cabinet, and the system comprises a local signal obtaining module which is used for obtaining the multi-dimensional state data of a local circuit; the associated signal receiving module is used for synthesizing network side operation reference data representing the macroscopic working condition of the power grid; the remote indication signal generation module is used for performing feedforward decoupling operation on local data so as to peel off self disturbance of a load, performing differential comparison on the local data and a network side operation reference, and generating remote regulation and control indication data capable of representing a real interaction state between a power grid and a local node; and the remote control module is used for generating a remote control instruction according to the remote regulation and control indication data. According to the invention, through carrying out differential analysis on the physical state of the local load and the network operation reference, predictive monitoring and high-reliability active regulation and control on the potential risk of the power distribution cabinet are realized.

The invention relates to a closed-loop control temperature compensation device and method for a Stirling cryocooler drive controller. The temperature compensation device comprises a Stirling cryocooler, an upper computer and a monitor, the Stirling cryocooler is integrally arranged in an incubator during deployment, and the upper computer and the monitor are arranged outside the incubator. According to the temperature compensation method, the actual differential voltage fed back by a temperature sensor in the refrigeration assembly serves as the reference, the target voltage of closed-loop control serves as a temperature compensation object, and closed-loop temperature compensation calibration is achieved. The temperature excursion characteristic of the whole Stirling cryocooler is comprehensively considered, the temperature excursion characteristics of all circuits of the driving controller are covered, and the temperature excursion influence of the direct current motor and the refrigeration assembly is further included; compared with a traditional scheme of only calibrating the temperature excursion characteristic of the local circuit of the controller, the temperature compensation effect of the method is more in line with the actual working condition. Actual measurement shows that the temperature control accuracy of the three-temperature temperature of the Stirling cryocooler after temperature compensation is better than that of the Stirling cryocooler, and the temperature control accuracy is greatly improved.

The invention discloses a signal tracing circuit diagram construction method for EDA software. The method comprises the following steps: step 1, obtaining a connection relation and a hierarchical relation of elements; step 2, determining a starting element according to a local circuit diagram to be drawn, drawing each stage of parent element according to the hierarchical relationship of the starting element, and enabling the peripheral edge of each stage of parent element to surround the starting element in a visual effect; 3, selecting a signal pin to be traced from the drawn elements, taking the selected element as a source element, taking the element to be connected as a target element, and placing the target element on the corresponding side of the source element; step 4, judging whether other elements located on the same side are overlapped with the target element and the connecting pins are located above or below, and moving the target element towards the opposite direction until the elements are not overlapped; and 5, wiring and returning to the step 3 until all elements in the local circuit diagram are completely wired. According to the method, more efficient and more intuitive construction of the multi-level circuit diagram can be realized.

The invention relates to the technical field of electronic design automation, in particular to a diagnostic report generation method, a diagnostic system, electronic equipment and a storage medium, and the method comprises the steps: extracting a design database DB according to each potential defect point, generating local circuit data in signal correlation with the potential defect point, and generating a diagnostic report; and inputting a value of a test vector of the local circuit data, and storing the local circuit data and the value of the test vector into a diagnosis report. The diagnosis report can provide local circuit data of potential defect points and values of test vectors under the condition of meeting confidentiality requirements, so that the values of a circuit model and the test vectors are visually displayed in a diagnosis system, a basis is provided for deep analysis of the defects and the diagnosis report by a PFA, the success rate and efficiency of PFA analysis are improved, and the method is suitable for popularization and application. And the yield is further improved.

The invention discloses a copper pillar bump processing method applied to high-density interconnection and a chip packaging structure. The processing method comprises the following steps: providing an IC carrier plate provided with a circuit layer and a solder mask layer; performing plasma coarsening on the surface of the solder mask layer to form a honeycomb structure on the surface of the solder mask layer; forming a chemical copper layer on the surface of the solder mask layer; laminating a plurality of anti-plating dry films on the electroless copper layer and the circuit layer; exposing and developing the anti-plating dry film to form a plurality of blind hole grooves which take local parts of the circuit layer as groove bottoms and are opened in one surface, back to the circuit layer, of the anti-plating dry film; plating a copper material into the plurality of blind hole grooves, and grinding to obtain a plurality of copper column bumps; and after the plating-resistant dry film is removed, baking is carried out, and recrystallization of the copper pillar bumps is promoted. According to the processing method, the copper pillar bump with the height of 80-200 microns can be manufactured on the IC carrier plate, the packaging density of the substrate is improved, the packaging volume of the substrate is reduced, more efficient and higher-density circuit connection is realized, and the packaging requirement is met.

The application discloses a kind of based on consensus mechanism's lightweight vehicle-mounted network data consistency method and medium, belong to vehicle network security technical field.The central gateway in the system pre-registers the challenge-response pair database of each DCU.Each DCU generates new block when, collect local vehicle-mounted data set, calculate its hash value, the hash value is as incentive input local PUF circuit generates unique response value, as block signature and identity authentication basis.New block is broadcast to whole network through bus.Receiving node verifies block legality using pre-registered CRP, and adds new block to DAG structure according to preset rule.Topological sorting is used to realize multi-block parallel confirmation.The application uses PUF to realize low computing overhead, high anti-fake identity authentication, combined with multi-parent DAG structure to improve the throughput and real-time performance of vehicle-mounted network data consistency processing, suitable for bandwidth and computing resource limited vehicle control system.

The application discloses a kind of based on loop current method's power electronic system cluster simulation implementation method, it is related to power electronic technical field.The application includes: based on loop current method's power electronic model cluster distribution initialization method and cluster computing scheduling method, wherein model distribution initialization method will large-scale power electronic model be distributed to each computing node according to the local circuit after decoupling of loop current method and complete the initialization of local circuit model simulation on each node, wherein cluster computing scheduling method realizes the multi-level parallel computing scheduling and synchronous process of main node to computing node in cluster.The application is suitable for large-scale power electronic simulation based on supercomputer or high-performance computer cluster, fully utilizes the advantage of large memory capacity of computer cluster to expand the scale of power electronic model simulation, fully utilizes the advantage of many processor core quantity of computer cluster to improve the efficiency of power electronic model simulation.

The utility model relates to a USB (universal serial bus) transmission rate increasing circuit, belongs to the technical field of USB data transmission, and solves the problem of low transmission efficiency of a large number of file data generated by an infrared handheld thermal imager in the prior art. The USB transmission rate increasing circuit comprises a bus switching circuit and a memory. The bus switching circuit comprises a data selection circuit and a microcontroller; the data selection circuit comprises a low-speed external data interface, a high-speed external data interface and a synthetic data interface, and the synthetic data interface is connected with the microcontroller; the low-speed or high-speed external data interface is connected with the synthetic data interface; and the microcontroller is electrically connected with the memory. On the basis of keeping the external transmission USB2.0 interface of the original infrared handheld thermal imager, the transmission effect of externally exporting data at the USB3.0 speed is realized by adjusting the local circuit.

An electrical assembly comprising: a main current sensor; a main pyrolytic fuse connected in series with the main current sensor; a first contact switch connected in series with the main current sensor and the main pyrolytic fuse; a first load circuit electrically connected to the first contact switch and comprising: a first load current sensor; a first load pyrolytic fuse; and a first control circuit comprising a first load pyrolytic driver and a first load circuit aggregator; a second load circuit electrically connected to the first contact switch in parallel with the first load circuit and comprising: a second load current sensor; a second load pyrolytic fuse; and a second control circuit comprising a second load pyrolytic driver and a second load circuit aggregator; and a local circuit.

The invention discloses a hardware circuit function identification method and device, and the method comprises the steps: segmenting a to-be-identified circuit, and obtaining to-be-identified local circuits; for each to-be-identified local circuit, analyzing the to-be-identified local circuit to obtain text information of the to-be-identified local circuit; screening out candidate circuits and circuit parameter information from a vector database, wherein the similarity between the candidate circuits and the text information of the to-be-identified local circuit is greater than a similarity threshold; determining function information of the to-be-identified local circuit based on the text information of the to-be-identified local circuit, the candidate circuit and the circuit parameter information; and analyzing the to-be-identified circuit according to the function information of all the to-be-identified local circuits to obtain the circuit function of the to-be-identified circuit. The candidate circuit information with high similarity with the to-be-identified local circuit is screened out for function identification, so that the function information of the to-be-identified local circuit can be accurately extracted. And according to the function information, the function of the whole circuit is further inferred, so that accurate identification of the function of the circuit to be identified is realized.

This invention relates to the field of power cable technology and discloses a cross-linked polyethylene insulated overhead cable with rapidly cross-linked silane and its preparation method, comprising: a conductor located at the center of the cable; a conductor shielding layer extruded on the outside of the conductor; an insulation layer extruded on the outside of the conductor shielding layer; an insulation shielding layer extruded on the outside of the insulation layer; a metal shielding layer disposed on the outside of the insulation shielding layer; and an outer sheath of the cable disposed on the outside of the metal shielding layer. A heat storage component located at an area prone to overheating is disposed on the outside of the outer sheath of the cable. The heat storage component allows heat to be transferred to the cable joint or local circuit when overheating occurs due to overload, increased contact resistance, etc. Once the temperature reaches the set melting point of the phase change material, the phase change material will undergo a phase change and absorb a large amount of latent heat, thus stabilizing the temperature of the overheated area near the phase change point, forming a thermal buffer, and preventing uncontrolled temperature rise and heat spread within a certain range.

The application belongs to the field of integrated circuit design, and proposes and serial conversion circuit, which is used for solving the problem of readout signal attenuation in the transmission process and the problem of readout signal error code caused by excessive parasitic capacitance, so as to improve the performance of the image sensor. The application comprises a current type SA circuit, a three-state gate module and a shift register, wherein the current type SA circuit is divided into two parts, namely a column parallel local circuit and a global circuit, which are respectively recorded as local module and global module; the working process is divided into two steps: the first step is completed by the current type SA circuit, and S column parallel data is converted into S / M group parallel data; the second step is completed by the three-state gate module and the shift register, and S / M group parallel data is converted into S / M group serial data. The application is mainly applied to the occasion of integrated circuit design and manufacturing.

Embodiments of the present disclosure relate to apparatuses and methods of reading data from memory cells. An integrated circuit includes a memory array. The memory array includes a plurality of bit lines. The bit lines are each coupled to a respective local I / O circuit. All of the local I / O circuits are coupled to a global I / O circuit. Each local I / O circuit includes a first sense stage for reading data from a memory cell. The global I / O circuit includes a second sense stage for reading data from a memory cell.

An automatic line pipe structure of an oxidation machine table comprises a mechanical arm, a plurality of fixing seats are arranged at the top of the mechanical arm, the fixing seats are fixedly connected with the top of the mechanical arm through screws, lock catch rings are arranged at the tops of the fixing seats, line pipes are arranged in the lock catch rings, the line pipes are fixed to the mechanical arm through the lock catch rings, and the line pipes are fixed to the mechanical arm through the lock catch rings. The line pipe and the mechanical arm are wound with a plurality of large ribbons for reinforcement, a line is arranged in the line pipe, the line is wrapped with a wear-resistant layer, the wear-resistant layer is made of an oxford fabric material, the outer surface of the wear-resistant layer is wrapped with a protective layer, the protective layer is made of a PVC material, and the protective layer is provided with a plurality of small ribbons for fixation. The circuit pipe is provided with the splicing assembly, the splicing assembly comprises the fixing ring and the connecting ring, the circuit pipe is divided into multiple sections, then the multiple sections of circuit pipes are connected through the splicing assembly, local circuit pipes can be detached, maintained and replaced according to requirements, and the maintenance cost is reduced.

The application discloses a circuit partitioning method, an equivalence verification method, and a storage medium. The circuit partitioning method comprises the following steps: firstly, equivalence verification is performed on the combination logic of a reference circuit and an implementation circuit to obtain registers with matching failure and registers failing in combination logic equivalence verification; the registers with matching failure and the registers failing in combination logic equivalence verification are taken as possible partition nodes, and all cone tops of the possible partition nodes are searched; when any two possible partition nodes have the same cone top, the two possible partition nodes are divided into a group; and the reference circuit and the corresponding implementation circuit are divided in a group unit, and the registers in the group and the corresponding combination circuit are divided into a local circuit. The application can simplify the complexity of large-scale netlist circuit equivalence verification and improve the efficiency of large-scale netlist circuit equivalence verification.

The invention provides, amongst other aspects, a device comprising: an I2C path section for realizing a 4W I2C path toward an application processor and a further device; a local I2C module connected to local I2C circuitry via a two wire, 2W, connection; wherein the I2C path section is provided as four wire, 4W, connection; wherein the local I2C module comprises a static voltage offset means for converting between unidirectional signals carried in opposite directions over two 2W pairs of said 4W path and bidirectional signals carried over said 2W connection toward the local I2C circuitry.

The invention discloses a lightweight vehicle-mounted network data consistency method based on a consensus mechanism and a medium, and belongs to the technical field of vehicle network security. In the system, a central gateway is pre-registered with a challenge-response pair database of each DCU. When a new block is generated by each DCU, a local vehicle-mounted data set is collected, a hash value of the local vehicle-mounted data set is calculated, and the hash value serves as an excitation input local PUF circuit to generate a unique response value which serves as a block signature and identity authentication basis. And the new block is broadcasted to the whole network through the bus. And the receiving node verifies the validity of the block by using the pre-registered CRP, and adds the new block to the DAG structure according to a preset rule. And multi-block parallel confirmation is realized through topological sorting. According to the invention, the PUF is utilized to realize identity authentication with low computing overhead and high anti-counterfeiting performance, the throughput rate and the real-time performance of vehicle-mounted network data consistency processing are improved in combination with a multi-parent DAG structure, and the method is suitable for a vehicle-mounted control system with limited bandwidth and computing resources.

The invention provides an interactive method for local layout circuit in-situ packaging of an EDA design platform based on a unified working area, and aims to systematically solve structural problems existing in a traditional local priority design mode in an interactive level. According to the method, a user is allowed to directly select a target component combination and perform one-key triggering in a schematic diagram-layout linkage working area, namely, a system automatically completes layout splicing and packaging at the rear end, and an editable and simulative local circuit unit is generated in situ at the front end to replace an original component group. The design fault is fundamentally eliminated, 'transparent packaging 'is realized, the information black box is avoided, and the top-down design normal form is put into the reality by keeping the complete editability of the packaging unit and supporting the optimized closed loop of the parameters from the top layer to the local layout. According to the technical effect, compared with a traditional method for creating a local circuit independent file, the interaction method has the advantages that the interaction efficiency is remarkably improved, and the analysis of the physical field coupling effect becomes convenient and efficient.