486 results about "Capacitive coupling" patented technology

A programmable in-memory computing (IMC) accelerator for low-precision deep neural network inference, also referred to as PIMCA, is provided. Embodiments of the PIMCA integrate a large number of capacitive-coupling-based IMC static random-access memory (SRAM) macros and demonstrate large-scale integration of IMC SRAM macros. For example, a 28 nm prototype integrates 108 capacitive-coupling-based IMC SRAM macros of a total size of 3.4 megabytes (Mb), demonstrating one of the largest IMC hardware to date. In addition, a custom instruction set architecture (ISA) is developed featuring IMC and single-instruction-multiple-data (SIMD) functional units with hardware loop to support a range of deep neural network (DNN) layer types. The 28 nm prototype chip achieves a peak throughput of 4.9 tera operations per second (TOPS) and system-level peak energy-efficiency of 437 TOPS per watt (TOPS / W) at 40 megahertz (MHz) with a 1 volt (V) supply.

A system and method are used to maintain a variance in feedback factors of an amplifier between the first and second phases either below a threshold value or within a specified range. The system includes the amplifier and first through third capacitances. The amplifier is coupled between an input node and an output node that operates during first and second phases of operation. The first capacitance is coupled across the amplifier and between the input node and the output node during the first and second phases of operation. The second capacitance is coupled to the input node during the first phase of operation. The third capacitance is coupled to one of the input and output nodes during one or both of the first and second phases of operation.

The invention provides a calculation error compensation test method and system based on a capacitive coupling storage and calculation integrated chip. The method comprises the steps of collecting manufacturing process deviation parameters of chips of a preset batch, processing to obtain process deviation errors, obtaining temperature factor parameters of the chips, processing to obtain temperature drift errors, obtaining overall errors of the chips, judging whether error compensation needs to be carried out on the chips or not, and if error compensation needs to be carried out, further judging a specific compensation mode. Comprising a classification compensation mode and an overall compensation mode, if the compensation mode is the classification compensation mode, corresponding compensation is performed on each error, and if the compensation mode is the overall compensation mode, overall compensation is performed on the chip, so that the calculation error compensation test technology based on the capacitance coupling storage and calculation integrated chip is realized.

The invention relates to the field of power equipment detection and intelligent robot control, and discloses an insulator zero value detection robot control method. The method comprises the following steps: deploying a rail-mounted robot on a power transmission line, and synchronously acquiring infrared thermal imaging, ultraviolet corona, capacitance coupling voltage and laser contour four-dimensional data; performing space-time alignment and multi-modal feature extraction on the multi-source information; generating an insulator unit-level health score through cross-modal attention fusion; and judging a zero-value fault according to the scoring threshold value and triggering a rechecking or confirming process. The system comprises a double-wheel clamping driving mechanism, a multi-source sensing array and a central controller. According to the invention, full-automatic, high-precision and high-safety detection in an electrified state is realized, and the recognition accuracy and the operation efficiency are remarkably improved.

The invention relates to the technical field of integrated circuits, in particular to a capacitive coupling type current steering digital-to-analog converter for transmitting switch control signals, which comprises a current steering unit and a switch signal control unit. The switching signal control unit comprises two capacitance coupling type level shifters; the current steering unit comprises a current source and transistors M1-M4, source electrodes of the transistors M1-M4 are connected with one end of the current source, and the other end of the current source is grounded; drain electrodes of the transistors M1-M2 are connected to form a positive output signal, and drain electrodes of the transistors M3-M4 are connected to form a negative output signal; the grid electrodes of the transistors M1-M2 are connected with a first capacitive coupling type level shifter, and the transistors M3-M4 are connected with a second capacitive coupling type level shifter; the on and off of the transistors M1-M4 are controlled through the two capacitance coupling type level shifters; the cross coupling unit is introduced to assist in transmitting switch control signals, and the dynamic performance of the digital-to-analog converter is improved.

An electronic device is provided. The electronic device includes a first housing comprising a first space and comprising a conductive portion, a second housing comprising a second space and slidably coupled to the first housing, a flexible display disposed to be supported by the first housing and the second housing and having a display area expanding when being transitioned from a slide-in state to a slide-out state, and a wireless communication circuit disposed in the first space and configured to transmit or receive a wireless signal in a designated frequency band via the conductive portion, wherein the electronic device comprises a conductive stub disposed in the second housing and disposed to be connectable through capacitive coupling to at least a part of the conductive portion in the slide-in state.

Systems and techniques may generally be used for delivering pulsed electrostatic fields for therapeutic purposes. In one aspect, an electrostatic-field therapy apparatus may include a power source; a pulse-rate generator that may produce gating pulses; a solid-state switching stage with at least one transistor whose control terminal receives the gating pulses and whose conduction path periodically switches current from the power source; a step-up transformer whose primary winding couples to the switching stage and whose secondary winding may output high-potential pulses; an electrode coupled to the secondary winding; and a dielectric layer disposed over the electrode so that, when a body region is placed adjacent the dielectric layer, the high-potential pulses may be capacitively transferred through the dielectric as a therapeutic electrostatic field.

Electrodes configurable for capacitive touch sensing or inductive sensing are disclosed. The electrodes are formed from a plurality of tiled (connected) sense pixels, each sense pixel including two or four conductive elements. The conductive elements within the plurality of sense pixels of an electrode are connected to form conductive pathways within the electrode. These conductive pathways enable each electrode to be configured as a touch electrode for single-ended or differential capacitive touch sensing, or into one or two loops for inductive sensing. In pixels with four conductive elements, two conductive elements are formed with a comb shape for maximizing current conduction during inductive sensing and maximizing capacitive coupling during touch sensing, and two conductive elements are formed as bypasses. In electrodes formed from sense pixels with four conductive elements, each conductive pathway within the electrode is formed as an alternating series of comb-shaped conductive elements and bypasses.

Disclosed is a novel dipole antenna design having symmetric poles, each pole having a half circle resonator and an oval resonator that are electrically connected by a straight choke section; the dipole shape permits a wideband dipole response with a transition frequency between a lower and upper frequency band. A cross bar and capacitively-coupled stubs tune at the transition frequency to create a continuous impedance and gain-bandwidth. The dipole and the crossbar and stubs are formed on opposite surface or sides of a substate. Data demonstrates the novel dipole antenna can exceed the gain-bandwidth of the state-of-the-art bowtie by approximately 5 times, that is, its gain-bandwidth is 10:1 versus the standard bowtie gain-bandwidth of 2:1 at broadside.

The invention discloses a switch equipment fault detection device with a built-in multi-channel sensor, and relates to the technical field of switch equipment fault detection.The switch equipment fault detection device comprises a base and an adjusting assembly, universal wheels are arranged at the four corners of the bottom of the base, a handle is arranged on the upper portion of one side of the base, and a limiting plate is arranged on the other side of the base; a stabilizing assembly is arranged in the base, a support is fixed to one end of the top of the base, and the adjusting assembly is arranged on the upper portion of the support and comprises a servo motor. The ultrasonic sensor is used for capturing mechanical oscillation signals generated by partial discharge, the infrared temperature sensor is matched for monitoring abnormal temperature rise, the electric push rod drives the transient earth electricity tester to be attached to the cabinet wall, the transient earth voltage derived by electromagnetic waves is detected in a capacitive coupling mode, and the fault recognition rate is improved through multi-channel cooperation; the detection assembly can be controlled to move along the rectangular track and adjust the height, thereby achieving the full-coverage scanning of the outer surface of the switch cabinet.

A programmable in-memory computing (IMC) accelerator for low-precision deep neural network inference, also referred to as PIMCA, is provided. Embodiments of the PIMCA integrate a large number of capacitive-coupling-based IMC static random-access memory (SRAM) macros and demonstrate large-scale integration of IMC SRAM macros. For example, a 28 nm prototype integrates 108 capacitive-coupling-based IMC SRAM macros of a total size of 3.4 megabytes (Mb), demonstrating one of the largest IMC hardware to date. In addition, a custom instruction set architecture (ISA) is developed featuring IMC and single-instruction-multiple-data (SIMD) functional units with hardware loop to support a range of deep neural network (DNN) layer types. The 28 nm prototype chip achieves a peak throughput of 4.9 tera operations per second (TOPS) and system-level peak energy-efficiency of 437 TOPS per watt (TOPS / W) at 40 megahertz (MHz) with a 1 volt (V) supply.

The invention provides a method for measuring impedance of a capacitively coupled plasma source, which comprises the following steps of: under the condition that plasma is not ignited, dividing a cavity into an upper part and a lower part along an electrical middle plane, and establishing an equivalent circuit model comprising five elements to be determined; three measurement ports are defined, five independent measurement boundary conditions are set, sweep frequency measurement is carried out by using a network analyzer, and multiple groups of Z parameter data are obtained; then, on each frequency point, joint fitting is carried out on a theoretical impedance expression of the equivalent circuit and actually measured data, and parameter values of all undetermined elements are solved; and finally, outputting a parameter curve of each element along with frequency change and a cavity equivalent impedance spectrum. According to the method, the problem that equivalent parameters cannot be identified is solved through multi-working-condition data redundancy, universal, accurate and reproducible measurement of the impedance of the pure cavity is realized, and a reliable quantitative basis is provided for matching network design, process window prediction and cavity optimization.

The invention provides a parameter optimization method of a wireless power transmission system, which optimizes circuit parameters and magnetic coupling structure parameters of the wireless power transmission system through a two-stage optimization algorithm, and the two-stage optimization algorithm comprises first-stage optimization and second-stage optimization. In the first-stage optimization, circuit parameters are optimized, a first-stage optimization parameter set is generated, and the circuit parameters comprise primary side capacitance, secondary side capacitance, a coupling coefficient, an equivalent load and system frequency; in the second-stage optimization, magnetic coupling structure parameters are optimized, a second-stage optimization parameter set is generated, and the magnetic coupling structure parameters comprise the coil size, the magnetic core loss and the magnetic flux density; and according to the first-stage optimization parameter set and the second-stage optimization parameter set, generating a final optimization parameter set which is used for optimizing the output performance of the wireless power transmission system. The initial parameters are obtained step by step, and the incidence relation between the power density and the transmission efficiency is determined, so that an accurate initial basis and clear target guidance are provided for subsequent optimization.

A magneto-electric dipole antenna array includes a substrate and at least one antenna unit. Each of the at least one antenna unit includes an electric-dipole component, a magnetic-dipole component, a first feeding probe, a second feeding probe and a stripline. The electric-dipole component is disposed on an upper surface of the substrate. The magnetic-dipole component is disposed in the substrate and between the upper surface and a lower surface of the substrate, and is electrically connected to the electric-dipole component. The first feeding probe is disposed on the upper surface of the substrate for vertical polarization. The second feeding probe is disposed in the substrate and between the upper surface and the lower surface of the substrate for horizontal polarization. The stripline is disposed in the substrate and between the first feeding probe and the second feeding probe for capacitive coupling.

The invention relates to an antenna assembly and a vehicle. The antenna assembly comprises a dielectric body, a first antenna structure, a second antenna structure and a metal frame body. The projections of the plurality of second antenna structures on the dielectric body along the thickness direction of the dielectric body are arranged around the circumferential direction of the first antenna structure, the plurality of second antenna structures are rotationally symmetrical about the center of the first antenna structure, and each second antenna structure is coupled with the first antenna structure. The metal frame body is arranged around the periphery of the first antenna structure, and the metal frame body is connected with the dielectric body. The low-profile antenna structure is realized, the influence caused by the surface wave effect of the dielectric body is improved, the mutual coupling interference between double frequencies is reduced, and the antenna gain and the antenna bandwidth are improved. Besides, the metal frame body can restrain back lobe level energy, capacitance coupling is formed between the first antenna structure and the metal frame body, capacitance coupling is formed between the second antenna structure and the metal frame body, the antenna miniaturization design is further achieved, the overall size is reduced, and the installation space can be prevented from being limited.

The application discloses a quantum bit regulation circuit, a quantum chip and a quantum computer, and relates to the field of quantum chip control. Based on different frequency ranges, an external signal generator can output an electric signal including low-frequency control information and / or high-frequency control information to a control matching part through a first integrated control line by using only one control channel; the control matching part couples the electric signal including high-frequency control information with a cross capacitor to make the equivalent coupling capacitance value of the quantum bit equal to a target coupling capacitance value, and / or couples the electric signal including low-frequency control information with a superconducting quantum interference device to form a magnetic field to make the working frequency of the quantum bit equal to a target working frequency. In the case of only one control channel, the control matching part realizes the driving and frequency regulation of the quantum bit, reduces the control channel, provides convenience for the setting of a measurement and control channel, is beneficial to the wiring design and packaging of the quantum chip, and is beneficial to integrated design.

A device having an electrode and a signal application element for applying an electric signal to the electrode, the device (10) being provided, to reduce the need to add a wiring for an inspection purpose, with: a plurality of electrodes (E(i,j)), a plurality of signal application elements (TR(i,j)) for applying an electric signal to each of the plurality of electrodes, and at least one wiring (DL(i)) to which a signal for driving the plurality of signal application elements is applied. The at least one wiring has at least one capacitive coupling unit (C(i,j)) that is capacitively coupled with any one of the plurality of electrodes.

The invention relates to the technical field of micro display, and discloses a display panel and a preparation method thereof.The display panel comprises pixel units arranged in an array, each pixel unit comprises a driving circuit layer arranged on one side of a substrate, and each driving circuit layer comprises multiple metal wire layers and interlayer dielectric layers arranged between the adjacent metal wire layers; the display panel comprises an isolation structure arranged between any two adjacent pixel units, and the lower end of the isolation structure extends to be flush with the bottom face of any metal wire layer or any interlayer dielectric layer in the direction perpendicular to the substrate or extends into the substrate. The isolation structure comprises a bottom insulating layer and side wall insulating layers arranged on the side walls of any two adjacent driving circuit layers. The isolation grooves are formed between the pixels and are filled with materials such as gas, low-dielectric-constant media or metal, so that capacitive coupling, leakage current and inductive coupling between the pixels are reduced, and the problems of contrast reduction, color distortion, inaccurate gray scale and the like caused by crosstalk are solved.

The application relates to the communication technical field, and provides a filter and a coupling polarity adjusting method.The filter comprises a first component, a second component, a first resonator, a second resonator and a coupling piece, the first resonator and the second resonator are located in a first resonant cavity and a second resonant cavity formed between the first component and the second component; one end of the coupling piece is located in the first resonant cavity and connected to the first resonator or the first component to form a short-circuit end, and the other end of the coupling piece is suspended in the second resonant cavity and located on one side of the second resonator to form an open-circuit end; and the coupling piece is used for capacitive coupling or inductive coupling between the first resonator and the second resonator.The filter provided by the application can realize capacitive coupling or inductive coupling between the first resonator and the second resonator by setting the coupling piece with the same structure and only setting different lengths, and the structure can be effectively simplified.

The invention belongs to the field of plasma devices, and particularly relates to an electrode assembly, a preparation method thereof, a capacitive coupling plasma discharge cavity and a plasma device. The electrode assembly comprises a heating disc, a supporting seat and an electrode, the supporting seat is vertically connected with the heating disc; the supporting seat is in a hollow tubular shape and comprises a tubular supporting seat base body and a first metal conductive layer covering the inner surface of the supporting seat base body. The supporting seat base body is made of a ceramic material; the electrode comprises a first part embedded in the heating disc and a second part located on the center shaft of the supporting base. Parasitic plasmas can be prevented from being generated in the vacuum cavity around the supporting seat, and the process stability is improved.

The invention discloses a keyboard capacitive coupling fingerprint recognition method and system and a keyboard, and relates to the technical field of biological recognition, the method comprises the steps that a miniature capacitive sensor array is arranged below a keycap of the keyboard, the contact distance of the sensor array is set in a preset precision interval, and the sensor array adopts a capacitive coupling technology; when a user knocks the keycap, detecting a capacitance change value between a finger and the miniature capacitive sensor at a sampling rate of a preset interval through the sensor array; a capacitance detection sensitivity threshold value is adjusted through a self-adaptive calibration mechanism; synchronously acquiring key pressure parameters in the process of clicking the keyboard by fingers; matching the capacitance change value with a preset fingerprint template, and performing multi-dimensional identity verification in combination with the key pressure parameter to obtain a matching result; and executing identity authentication operation according to a matching result. According to the invention, the fingerprint identification function is seamlessly integrated into the daily-used input device without increasing extra space occupation, so that the user experience is improved.

A device for monitoring spacecraft electric potential includes a first conductor configured to be in electrical communication with a conductive structure of a spacecraft, a second conductor capacitively coupled to the first conductor, a switch connected to the first conductor and the second conductor such that closure of the switch electrically ties the first conductor to the second conductor, and a monitoring circuit in electrical communication with the second conductor, the monitoring circuit being configured to detect an electric potential of the second conductor relative to the first conductor, the detected electric potential being indicative of a change in electric potential of the first conductor relative to the second conductor since an opening of the switch.

The invention relates to the field of integrated circuits, in particular to a K-band voltage-controlled oscillator based on a noise circulation structure, a phase-locked loop and a chip. The voltage-controlled oscillator comprises an oscillation circuit and a tuning circuit. The oscillating circuit comprises an upper resonant cavity formed by a basic oscillating circuit adopting a noise circulation structure and a lower resonant cavity formed by a noise suppression circuit adopting a Colpitts structure. The oscillating circuit adopts two groups of cross-coupled negative resistors, namely NMOS and PMOS, the cross-coupled negative resistors adopt a capacitance-coupled noise circulation structure, the PMOS adopts a Colpitts structure, and the cross-coupled negative resistors are connected through a tail inductor so as to improve phase noise and power consumption of the circuit. The tuning circuit adopts a variable capacitor which is connected to the oscillation circuit and is composed of a numerical control capacitor array and / or a self-adjusting capacitor circuit; and the capacitance value of the variable capacitor is adjusted to realize fine adjustment of the oscillation frequency. According to the invention, the problem that a traditional oscillator with a noise circulation structure is difficult to realize comprehensive optimization of phase noise and power consumption can be solved.

The invention discloses an electrostatic adsorption force alignment system and method, and the system comprises a plurality of segmented electrodes which are distributed on a first device and a second device and are electrically isolated from each other, and the segmented electrodes are disposed at the edges of the first device and the second device; the movable high-conductivity electrification auxiliary device is used for forming capacitive coupling with the segmented electrodes in a charging stage; the controllable switch circuit is connected with the segmented electrodes and used for disconnecting the segmented electrodes from the electrostatic generator after charging is completed; and the alignment control unit is configured to apply positive and negative alternating voltages to the segmented electrodes according to a preset grouping mode, and execute a cycle of charging, disconnecting, translation / rotation, discharging and regrouping for multiple times until the target alignment precision between the first device and the second device is achieved.

This invention provides a technique for accurately determining the correspondence between the ends of insulated wires in a multi-core cable with multiple insulated wires. An inspection device for determining the correspondence between the ends of insulated wires in a multi-core cable includes: a signal input unit that inputs an inspection signal to one end of each insulated wire via capacitive coupling; a signal output unit that outputs an inspection signal from the other end of each insulated wire via capacitive coupling; and a determination unit that measures the voltage of the inspection signal to determine the correspondence of the other ends of the insulated wires. At least one of the signal input unit and the signal output unit has a signal transmission cable and a substrate. A first electrode connected to the signal transmission cable is provided on one main surface of the substrate, and a second electrode capacitively coupled to the insulated wire is provided on the other main surface of the substrate. A transmission line connected to the first and second electrodes and transmitting the inspection signal is provided inside the substrate, and a shielding layer is provided on the substrate to suppress noise intrusion into the transmission line.

There is provided a device for acquiring biometric electrical signals comprising at least two electrodes. The device also comprises a current supply comprising a direct current supply, an alternating current supply, and a switch actuatable to switch selectively between the direct current supply and the alternating current supply. The device further comprises a capacitive coupling to couple each electrode to the current supply, a direct coupling to couple each electrode to the current supply, and a switch actuatable to switch selectively between the direct coupling and the capacitive coupling. The device also comprises a data acquisition module.

The present disclosure relates to the technical field of semiconductor manufacturing, and provides an upper electrode structure and a semiconductor processing device. The upper electrode structure comprises a first housing, a second housing, and a capacitance adjustment apparatus. The second housing is provided in the first housing, a gap is provided between the first housing and the second housing, and the capacitance adjustment apparatus is provided in the gap and is used for adjusting the capacitance of a local region between the first housing and the second housing. The capacitance of the local region between the first housing and the second housing can be adjusted by using the capacitance adjustment apparatus. Because radio frequency energy in the second housing is transferred to the first housing by means of capacitive coupling, in a region which experiences a change in capacitance between the first housing and the second housing, the amount of the radio frequency energy transferred also changes accordingly. Therefore, the uniformity of the radio frequency energy in the second housing can be adjusted by controlling the transfer amount of the radio frequency energy, thereby improving process uniformity and ensuring the yield of a semiconductor manufacturing process.

The present application belongs to the technical field of signal processing. Disclosed are a signal processing method and apparatus, and a device. The method comprises: using an encoding matrix to modulate driving signals sent in parallel by a plurality of TX electrodes, wherein the encoding matrix comprises a full-column-rank matrix of size M×N or a full-row-rank matrix of size N×M, M and N are both positive integers, and M＞N; and using a decoding matrix to decode sensed signals, wherein the decoding matrix is a generalized inverse matrix of the encoding matrix, the sensed signals are obtained by means of sensing by a plurality of RX electrodes, there is coupling capacitance between any RX electrode among the plurality of RX electrodes and each TX electrode among the plurality of TX electrodes, and the coupling capacitance is determined on the basis of the signals decoded by means of the decoding matrix. In the method, when a touch control panel uses a CDM driving mode, driving signals are modulated using a non-square encoding matrix, thereby increasing SNRs of sensed signals generated when the touch control panel uses the CDM driving mode.

A sensor system having a MEMS gyroscope is claimed, the sensor system comprising at least: - a seismic mass which can be excited to oscillate, the seismic mass having at least one electrode assembly for capacitively detecting a measurement signal, - a drive circuit for generating a drive voltage for exciting and maintaining a defined oscillatory motion of the seismic mass, wherein a parasitic capacitive coupling exists between the drive circuit and the at least one electrode assembly, - a detection circuit for reading the measurement signal and for generating a rotation rate signal on the basis of the measurement signal, characterized by circuit means for compensating for an offset of the rotation rate signal from the drive voltage.

This invention relates to the field of high-voltage voltage detection technology and discloses a split-type wireless high-voltage voltage detector with dual-mode applications for handheld and drone use. The detector adopts an upper and lower shell structure. The upper shell houses a metal probe, a high-voltage contact plate, and a battery limiting plate; the lower shell integrates a telescopic rod interface, strap lugs, a sensing plate, a lithium battery, and a circuit board, supporting handheld or drone mounting. The sensing plate senses the voltage of the high-voltage conductor based on the principle of capacitive coupling. The signal is processed and transmitted to the receiver via a LORA module, enabling remote voltage detection over distances of several kilometers. The circuit board includes a main control chip, a self-test circuit, a Type-C interface, charge / discharge management, DC-DC step-down, positive and negative voltage, and signal processing modules. The shell is filled with epoxy resin to enhance high-voltage insulation. This structure separates detection and display, combining safety with applicability to multiple scenarios.