63results about How to "Reduce coupling interference" patented technology

The application discloses an array substrate, a display panel and a display device; the array substrate comprises a fan-out wire walking and distributing structure; the fan-out wire walking and distributing structure comprises a first fan-out walking wire and a second fan-out walking wire; the first fan-out walking wire and the second fan-out walking wire are insulated to each other; the fan-out wire walking and distributing structure at least comprises a front end wire distribution zone, a middle gluing zone and a back end wire distribution zone; the front projections of the parts where the first fan-out walking wire and the second fan-out walking wire are located at the front end wire distribution zone on the plane of the array substrate are not overlapped to each other; the front projections of the parts where the first fan-out walking wire and the second fan-out walking wire are located at the middle gluing zone on the plane of the array substrate are overlapped to each other; the front projections of the parts where the first fan-out walking wire and the second fan-out walking wire are located at the back end wire distribution zone on the plane of the array substrate are not overlapped; the middle gluing zone is used for coating the first sealing glue layer on the array substrate. The manner can guarantee the light transmittance of the gluing zone, so that the sealing glue can be fully cured to avoid liquid crystal leakage.

Abstract Antenna device for hearing instruments The disclosure relates to an antenna device for hearing instruments, especially for hearing instruments to be worn in the auditory canal. A need exists specifying a hearing instrument, especially ITE hearing instrument having a data transmission system improved in respect of transmission bandwidth with no increase or only an insignificant increase in space and energy requirement. Disclosed an antenna device for a hearing instrument with an antenna arrangement (16) having a preferred send and receive spatial direction, and a further electrical hearing instrument component (13) which emits noise radiation predominantly in a noise radiation spatial direction. The antenna arrangement (16) and the further hearing instrument component (13) are disposed so that the send and receive spatial direction and the noise radiation spatial direction are oriented transverse to one another in such a way that a coupling-in of noise radiation into the antenna arrangement is reduced. The reduction of the noise couplings into the antenna arrangement makes possible a higher send and receive bandwidth, with the installation volume and energy requirement remaining the same. The further hearing instrument component can involve a receiver or any other component, especially one emitting inductive or electromagnetic radiation.

A non-logic gate and non-volatile memory has a plurality of memory cell rows; each memory cell row includes a source region and a drain region, a plurality of memory cells, a plurality of transmission grids, a first selection transistor and a second selection transistor; wherein, the source region and the drain region are arranged in a base board, a plurality of memory cells are positioned on the base board between the source region and the drain region, and each memory cell comprises a memory cell and a transistor, and the memory cell is connected with the transistor in parallel. Moreover, the transmission grids are respectively mounted on the base board between two neighboring memory cells and connect the memory cells in series, and the first selection transistor and the second selection transistor are respectively connected with two memory cells outside and are respectively next to the source region and the grain region.

The invention discloses an antenna system. The antenna system comprises an electric bridge, upper-layer metal ground, an upper-layer substrate, a lower-layer substrate, lower-layer metal ground, a radiation patch, a mode converter, a circular waveguide and a metal via hole, wherein the antenna system is of a multi-layer plate structure sequentially comprising the upper-layer metal ground, the upper-layer substrate, the lower-layer substrate and the lower-layer metal ground from top to bottom, the radiation patch is arranged at an upper side of the upper-layer substrate, the mode converter is arranged on the radiation patch and is connected to the circular waveguide on the radiation patch, the electric bridge forms a feeding network, and two ports of the electric bridge are arranged betweenthe upper-layer substrate and the lower-layer substrate. With the adoption of the feeding source antenna system, wideband and dual-circularly polarization within a millimeter wave band can be achieved, and a transceiving port is enabled to have good isolation; and meanwhile, mode conversion from microstrip antenna to circular waveguide is achieved, the antenna system is simple and efficient in structure, the circular polarization performance is not changed, and the antenna system can be used as feeding sources of various types of antennas.

The invention discloses a quartz pitchfork gyroscope with a built-in integrated charge amplifier. The quartz pitchfork gyroscope comprises a quartz pitchfork sensitive element, a ceramic mixed integrated circuit and an encapsulating tube shell, wherein the quartz pitchfork sensitive element comprises a driving fork arm, a pickup fork arm, a torsion frame and an anchor point; the tube shell comprises a base, an upper cover plate and multiple pins; the ceramic mixed integrated circuit comprises a precision operational amplifier, a feedback resistor, a feedback capacitor and a ceramic substrate; the ceramic mixed integrated circuit extracts and amplifies induction charge from the quartz pitchfork gyroscope pickup fork arm into a voltage signal and outputs onto the pin of the tube shell. Direct output of weak charge signals is avoided, the influence of pollutants including residual soldering flux, lead distributed capacitance, dust, insulating varnish and water vapour and outside circuit noise on the charge extraction and amplification in the welding process can be effectively solved, the stability and signal-to-noise ratio for detecting quartz pitchfork gyroscope weak charge signals are enhanced, and the environmental adaptation and detection precision of the quartz pitchfork gyroscope are improved.

The invention provides a decoupling microstrip array antenna. The decoupling microstrip array antenna comprises a microstrip dielectric plate, wherein multiple groups of microstrip arrays are arranged on the microstrip dielectric plate, the microstrip arrays are formed by connecting a plurality of microstrip patch units in series, a transmission line lattice network is arranged between adjacent groups of microstrip arrays, metal via holes are further informed in the microstrip dielectric plate, the transmission line lattice network communicates with a metal grounding layer through the metal via holes, and a feeding network communicates with a back surface of the microstrip dielectric plate through the metal via holes. In the decoupling microstrip array antenna provided by the invention, the coupling interference between array antennas is substantially reduced with the adoption of the metal via holes and transmission line lattices, and the decoupling microstrip array antenna has the advantages of high isolation, miniaturization, low profile, high grain and easiness in carrier conformality, and can be applied to the technical field of radar, remote sensing, electronic countermeasure and wireless communication systems.

A high-precision general-purpose AC and DC current measuring device, including a casing, a magnetic core winding structure, and a circuit board. The magnetic core winding and the circuit board are arranged in the casing. It is made of soft magnetic material with low remanence, and has two measuring heads with consistent performance and opposite directions, completely closed, without air gap, the winding in the magnetic core winding is wound with high withstand voltage enameled wire, the magnetic core Including the measuring head and the mutual inductance magnetic core, all the magnetic cores are placed in the shielding cover to perform the function of strict magnetic shielding. The said shielding cover adopts a multi-layer structure, which not only has the function of shielding the magnetic field but also the function of shielding the electric field , which is extremely important for improving the accuracy of current measurement. The invention has a compensation winding for compensating the magnetic field generated by the measured current at any time, so that only the magnetic field generated by the exciting current exists in the measuring head without other magnetic fields, which is the closed-loop fluxgate principle.

The invention relates to an active surface myoelectricity detection probe adopting optical fiber transmission. The active surface myoelectricity detection probe adopting optical fiber transmission comprises a power source transformation and management module. The active surface myoelectricity detection probe adopting optical fiber transmission is characterized by further comprising an active probe body, wherein the active probe body comprises a reference electrode, a measuring electrode and a system control center, the system control center selects the measuring electrode and the reference electrode as a measuring pair in a time sharing mode through a single-chip microcomputer, the potential difference of the measuring pair is fed into a differential amplification circuit through an electronic simulation switch so that amplification and filtering can be carried out, and the detection probe transmits collected data to an upper computer through optical fibers in a one-way mode. The active surface myoelectricity detection probe adopting optical fiber transmission can solve the problems in the prior art, coupling interference on electrode wires and data transmission lines can be lowered effectively, the problem of 50 Hz power frequency interference entering from a power supply power line in a coupling mode can be solved, and therefore the needs of practical situations are met.

The invention provides a fan board and a connection system of the fan board. The fan board comprises a voltage adsorption circuit, a voltage input control circuit and L fans, wherein L is a natural number which is not less than 2; the voltage adsorption circuit comprises a capacitor and resistors which are mutually connected in parallel, wherein the capacitor and the resistors which are mutually connected in parallel are connected in series; the other end of the capacitor is connected to the voltage input position of the fan board; the other ends of the resistors which are mutually connected in parallel are connected to the earthing position of the fan board; one end of the voltage input control circuit is connected to the voltage input position of the fan board; and the other end of the voltage input control circuit is connected with the L fans to independently output a start control signal and voltage to the L fans. The scheme can reduce the influence of surge voltage.

Provided is a self-adaptive guidance method based on real-time estimation of a lift-drag ratio. The lift-drag ratio of a returning capsule is calculated in real time mainly through device information and guidance information of a guidance navigation and a control system of a reentry vehicle according to physical principles and definitions; real-time compensation design is carried out on reentry longitudinal flight guidance laws and transverse flight guidance laws according to the estimated lift-drag ratio, so that the influences of the fact that the lift-drag ratio deviates from a nominal design value on guidance precision are eliminated or relieved. The guidance law design, carried out according to the method, of the reentry vehicle can improve the guidance precision and the robustness of a guidance circuit, and the guidance demands of high speed aircrafts in the atmosphere can be met to the maximum extent.

The invention relates to a pulse width modulation circuit which aims to solve the problem that a PWM circuit is poor in anti-interference performance in the prior art. According to the technical scheme, the pulse width modulation circuit comprises a first comparator, a second comparator and a voltage-controlled current source circuit, wherein the input end of the voltage-controlled current source circuit is connected with oscillator output voltage, the oscillator output voltage is converted into a signal complementary with an input signal and is input into one first input end of the first comparator, the other input end of the first comparator is connected with an error amplifier output signal, the output end of the first comparator outputs a first PWM signal, one input end of the second comparator is connected with the oscillator output voltage, the other input end of the second comparator is connected with the error amplifier output signal, and the output end of the second comparator outputs a second PWM signal. The required PWM signals are generated by means of triangular wave signals which are totally symmetric, occurrence of glitches is avoided, coupling interference is reduced, and precision of a sampling circuit and stability of a system are effectively improved.

The invention relates to a business positioning system for electronic coupons and a coupon issuing and positioning method thereof. Wherein the merchant positioning system includes: an electronic coupon generating device for generating electronic coupons; a mobile terminal connected with the electronic coupon generating device for receiving and displaying electronic coupons and obtaining user location data; a store positioning device for respectively It is connected with the mobile terminal and the electronic coupon generating device, and is used to send the store closest to the user to the mobile terminal according to the user's location data and electronic coupons. Compared with the prior art, the present invention obtains the user's location through the mobile terminal, and pushes the nearest store to the mobile terminal based on the location, so that the most suitable store can still be selected even when there are many stores, which facilitates the use of electronic coupons.

The invention relates to a miniaturized angle sensitive and control device applied to a liquid-floating inertial instrument, which includes a polyhedron magnetic pole mounting frame, an excitation coil, a permanent magnet, a moving coil frame, a sensor coil and a torquer coil, and the excitation coil and the permanent magnet are installed on the A stator assembly is formed on the polyhedral magnetic pole mounting frame, and a moving coil frame is arranged coaxially outside the polyhedral magnetic pole mounting frame, and sensor coils and torquer coils are arranged on the moving coil frame. The invention describes a miniaturized angle sensitive and control device applied to a liquid-floating inertial instrument. The present invention improves the structure of the sensor and torque device for the liquid-floating inertial instrument to achieve the goal of miniaturization, and can meet the index of the inertial instrument Requirements, suitable for low-precision applications in liquid-floating inertial instruments.

The invention discloses a measurement system. The system comprises an anechoic chamber, a rotary table, N measurement antennas (N is natural number and not less than 11); a spherical surface coordinate system is established by taking the center of a measured part as an original point; the distribution of the measurement antennas is as shown in description, wherein thetai is the positive integral multiple of 15 DEG, and at least comprises a measurement antenna at each of the theta angle of 15 DEG, 30 DEG, 45 DEG, 60 DEG, 75 DEG, 90 DEG, 105 DEG, 120 DEG, 135 DEG, 150 DEG and 165 DEG; as shown in description, and N measurement antennas are not on the same plane. The system disclosed by the invention can create a measurement environment with small coupling interference among the measurement antennas and low reflection in the small anechoic chamber, thereby improving the measurement precision.

The invention provides an electric automobile and a motor controller therefor. The motor controller comprises a first charging port and a second charging port, wherein the first charging port is connected with one end of a power battery of the electric automobile, and the second charging port is connected with the other end of the power battery; a first driving port and a second driving port; a bidirectional DC/AC module; a motor control switch; a charging and discharging control module; a controller module which is connected with the motor control switch and the charging and discharging control module, and the controller module is used for controlling the motor control switch and the charging and discharging control module according to the current working mode of the motor controller. According to the motor controller, the negative electrode of the power battery side direct-current charging port and the negative electrode of the driving direct-current bus are separately arranged, so that when the motor controller is in a charging mode, namely the motor controller is connected into an alternating-current power grid to charge the power battery, the coupling interference is small.