592 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 shield gate trench MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) structure and a manufacturing method thereof, according to the manufacturing method, a field oxide layer is formed twice (a first oxide layer and a second oxide layer), a polycrystalline silicon interlayer is introduced between the first oxide layer and the second oxide layer, and the polycrystalline silicon interlayer is only reserved on a side wall opposite to a non-floating shield gate layer after being etched twice, so that the field oxide layer is formed in the first oxide layer and the second oxide layer; and a floating shield grid layer is formed. As the floating shield grid layer is introduced to the side wall opposite to the non-floating shield grid layer, the field intensity of the middle area in the depth direction of the groove can be increased, and the overall voltage endurance capability is improved. The floating shield gate layer is introduced into the shield gate trench MOSFET structure, so that the voltage withstanding level of a device can be improved, and the voltage withstanding level of the device can be improved by utilizing a capacitive coupling effect between a part of the floating shield gate layer and a part of the floating shield gate layer and a capacitive coupling effect between a source electrode and the drain electrode. Therefore, gate-drain capacitance and source-drain capacitance of the device can be reduced, and switching speed of the device is improved.

Systems and methods for touch sensing are provided. An input device includes a display and a touch sensor. The touch sensor has a sensing area with a plurality of sensor pixels forming rows and columns. Each sensor pixel includes a first electrode having first capacitive coupling areas and a second electrode having second capacitive coupling areas. The first capacitive coupling areas are configured to capacitively couple with one or more adjacent sensor pixels disposed in a same row and the second capacitive coupling areas are configured to capacitively couple with one or more adjacent sensor pixels in a same column. The first electrode is configured to electrically connect to one or more sensor pixels in the same column and the second electrode is configured to electrically connect to one or more sensor pixels in the same row. The sensor pixels are configured to facilitate parallel touch sensing in multiple orientations.

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.

Please delete the Abstract of the Disclosure, and replace it with the following: A superconducting quantum circuit includes first to fourth qubits and a coupler including a loop circuit connected between one end and other end of the coupler and a capacitor connected in parallel to the loop circuit, wherein the loop circuit includes n (n>=2) first Josephson junctions arranged in series and a second Josephson junction arranged in parallel with the n first Josephson junctions with a junction size smaller than that of the first Josephson junction, the first and second qubits capacitively coupled to the one end of the coupler, the third and fourth qubits capacitively coupled to the other end of the coupler, a magnitude of a coupling coefficient of the four-body interaction by the coupler being configurable based on circuit parameters including at least the n and α (0<α<1) which is a ratio of a Josephson energy between the second Josephson junction and the first Josephson junction.

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.

A plasma-enhanced atomic layer deposition method and the associated reactor, the method including a supply of a substrate into a plasma reactor including a reaction chamber, and a plurality of atomic layer deposition cycles on the exposed surface of the substrate, including an injection in the reaction chamber of a precursor based on a first species, a plasma treatment of the exposed surface of the substrate by a plasma by capacity coupling between the plate and the lateral wall of the reaction chamber, by applying a radiofrequency power to the plate. Capacitive coupling makes it possible to create a plasma localised in the vicinity of the substrate, at low and finely adjustable ion energy and density.

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.

A control input device and system are disclosed. The control input device has a mounting base to a capacitive touch screen; an actuator supported by and electrically insulated from the base with an electrically conducting surface and further including: an electrode that is touching, or adjacent to, the capacitive touch screen when the base is mounted, an electrical circuit between the electrode and the electrically conducting surface, the electrically conducting surface having a surface area that is selected such that the electrically conducting surface provides capacitive coupling to, or approaching, infinity whereby capacitive coupling between the electrode and the capacitive touch screen is detectable by the capacitive touch screen's controller, wherein, in use, the electrode is configured to undergo a change corresponding to a state of the actuator and the controller of the touch screen can determine the state of the actuator from the change to the electrode.

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.

A superconducting quantum circuit includes first to fourth qubits, and a coupler including first and second electrodes and a nonlinear element bridging the first and second electrodes, wherein each of the first to fourth qubits includes a resonator including a SQUID loop circuit and a capacitor connected in parallel to the loop circuit, the first and second qubits and the third and fourth qubits capacitively coupled to the first and second electrodes of the coupler, respectively, wherein a magnitude relationship among a capacitance value C of a capacitive coupling between each of the first to fourth qubits and the coupler, a capacitance value CJ of the capacitor connected in parallel to the loop circuit for each of the first to fourth qubits, and a capacitance value Cg between the first and second electrodes of the coupler, is set to CJ>Cg>C.

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.

The invention discloses a cable terminal temperature monitoring method, system and device based on capacitive coupling signals and a medium, and belongs to the technical field of power system monitoring technologies, and the method comprises the steps: collecting a voltage signal of a low-voltage side of a cable terminal to form first electrical data; constructing a first thermal-electric coupling model, and converting the first electrical data into first temperature data; comparing the first temperature data of the plurality of cable terminals to obtain a relative ratio, and determining a first abnormal state based on a first preset threshold; applying disturbance to the first thermal-electric coupling model to form a second thermal-electric coupling model; and combining the relative ratio with the second thermal-electric coupling model, and outputting early warning information. According to the method, the cable terminal low-voltage side voltage signals are collected, the thermal-electric coupling model is constructed to invert the initial temperature estimated value, external factor interference is eliminated by combining multi-terminal signal comparison, Gaussian distribution disturbance is introduced to correct model parameter deviation, system adaptability and robustness are enhanced, and early overheating fault accurate early warning is achieved.

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.

According to an aspect, a display device with a touch detection function includes: a substrate; a drive electrode that extends in a first direction; and a plurality of touch detection electrodes that are metal wirings extending in a second direction different from the first direction. The metal wirings are arranged with a predetermined pitch so as to make capacitive coupling with the drive electrode.

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.