34results about How to "Shield signal interference" patented technology

The invention provides a pressure induction module integrating a fingerprint recognition function, a driving method and a display device. The pressure induction module integrating the fingerprint recognition function comprises a pressure induction unit and a control unit, wherein the pressure induction unit comprises N rows and M columns of pressure induction subunits, pressure induction processing subunits and fingerprint recognition processing subunits, wherein N and M are both positive integers; the pressure induction subunit in the n(th) row and the m(th) column comprises a pressure induction module in the n(th) row and the m(th) column and a fingerprint recognition module in the n(th) row and the m(th) column, and the pressure induction processing subunits and the fingerprint recognition module in the n(th) row and the m(th) column are connected with the control unit, wherein n is a positive integer smaller than or equal to N, and m is a positive integer smaller than or equal to M; and the control unit is used for sending a fingerprint recognition control signal to the fingerprint recognition module in the n(th) row and the m(th) column after receiving a pressure induction instruction signal. Through the pressure induction module, the problems that in the prior art, the fingerprint recognition module is possibly triggered by mistake, consequently, power consumption is high, and unnecessary noise is caused by circuit coupling factors are solved.

The invention provides a multi-stopband ultra-wideband antenna based on a semi-module substrate integrated waveguide cavity, relating to an ultra-wideband antenna technology which can be applied in short distance wireless communication and data transmission. The multi-stopband ultra-wideband antenna comprises two layers of dielectric substrates. A lower metal copper foil (10) is arranged on the lower surface of a lower dielectric substrate (5). An intermediate metallic layer (7) and a binding layer (6) are arranged between the lower dielectric substrate and an upper dielectric substrate (4). A disc antenna (1), a microstrip feeder (2) and a microstrip impedance transformation line (3) which are produced by the metal copper foil are laid on the upper surface of the upper dielectric substrate. The disc antenna (1) is connected with the microstrip feeder (2) via the microstrip impedance transformation line (3). Land of the disc antenna (1) is consisted of the intermediate metallic layer (7). A semi-module cavity (11) is consisted of the intermediate metallic layer (7), the lower metal copper foil, the lower dielectric substrate and a metalized via hole (12) connecting the intermediate metallic layer (7) and the lower dielectric substrate. An internal metalized via hole (13) is arranged in the semi-module cavity.

The invention discloses a liquid crystal grating, a manufacturing method of the liquid crystal grating, a 3D (three-dimensional) display part and a 3D display device. The manufacturing method of the liquid crystal grating comprises the following steps: manufacturing a conducting layer and aligning marks on the upper surface of an upper base plate according to a first preset pattern, orderly manufacturing a first insulating layer, a touch-controlled electrode layer and a second insulating layer on the conducting layer, manufacturing a grounded facial electrode on the lower surface of the upper base plate, and enclosing the upper base plate and a lower base plate according to the aligning marks to form the liquid crystal grating, wherein the upper surface of the lower base plate is provided with strip-shaped electrodes. Due to the grounded facial electrode formed on the lower surface of the upper base plate in the liquid crystal grating, the signal interferences between the 3D control part and the touch-controlled part in the liquid crystal grating can be shielded. Moreover, the aligning marks are manufactured at the same time of manufacturing the conducting layer of the touch-controlled part, so that the time of rotating the upper base plate is reduced, and further, the possibility of scratching and abrading the surface of the upper base plate is lowered.

The invention provides an electric connector. The electrical connector includes a plastic body, a plurality of conductive terminals accommodated in the plastic body, and a shielding shell covering the outside of the plastic body and the conductive terminals. The conductive terminals include a ground terminal, a pair of differential signal terminals provided adjacent to the ground terminal, and a power supply terminal disposed inside the adjacent differential signal terminals. The conductive terminals further include a ground mechanism connected to the ground terminal, which is at least partially disposed between the power supply terminal and the ground terminal, as viewed in the thickness direction of the electrical connector.

The invention relates to a ferrite magnetostrictive displacement sensor device comprising a sensor head, a measuring rod and a moving magnetic ring assembly. The sensor head is provided with a microprocessor, a circuit processing module and a coil. The microprocessor and the circuit processing module are mounted in a closed shielding box. The circuit processing module is used for generating an excitation pulse and conditioning an echo signal. The coil is placed at one end of a waveguide wire for receiving the echo signal. The other end of the waveguide wire is provided with a damper for absorbing a torsional wave. The measuring rod includes the waveguide wire, an aluminum sleeve and a casing. The aluminum sleeve tightly wraps the waveguide wire and is disposed inside the casing. The casingis sleeved with a magnetic ring movable left and right on the casing and used for interacting with the waveguide wire. The waveguide wire uses ferrite as a magnetostrictive material. The ferrite magnetostrictive displacement sensor is greatly improved in operation stability, reduced in external interference, improved in the measurement accuracy, and reduced in cost.

The invention relates to the field of electromagnetic wave shielding films, in particular to an ultrahigh-frequency electromagnetic wave shielding film without a chemical electroplating process and conductive particles, and a manufacturing method of a circuit board comprising the film. The shielding film at least comprises an alloy shielding layer, wherein the outer surface of one side of the alloy shielding layer is coated with a pure adhesive layer; one or more of specially-processed coarsening insulation layers are arranged on the outer surface of the other side of an alloy shielding grounding layer; a carrier film layer is arranged on the outer surface of an insulating film layer; and the lower surface of a conductive adhesive layer is covered with a protection film. According to the shielding film, the pure adhesive film layer of the shielding film does not contain conductive particles, so that the cost can be lowered, and the insertion loss is reduced; and the pure adhesive filmlayer is punctured through the rough surface of the alloy shielding layer to realize grounding, so that extremely high shielding efficiency is achieved, the overall shielding effect is improved, pollution to the environment is reduced, the energy consumption is reduced, and the cost is lowered.

A built-in gas flowmeter has the sensors for acquiring the temp compensation signal and pressure compensation signal, and the both signals are transmitted to digital display. Its advantages are good protection to its parts and effective electromagnetic fielding.

The invention embodiment relates to a signal isolator comprising the following structures: an inner core used for connecting a signal line of a STB with a signal line of a TV cable; a feedthru capacitor sleeved in an annular manner outside an insulation medium wrapping an outer surface of the inner core, and comprises a first contact surface, a second contact surface and a capacitor arranged between the first and second contact surfaces; a housing comprising a male end housing used for connecting the first contact surface with a ground wire of the STB and a female housing used for connecting the second contact surface with a ground wire of the TV cable, so DC electric signals between the ground wires of the STB and the TV cable can be isolated by the feedthru capacitor, and a first AC signal between the ground wires of the STB and the TV cable is conducted through the feedthru capacitor. The signal isolator can effectively shield signal interferences caused by potential differences between power grid ground wire and the cable TV network ground wire, thus improving user watching effect.

The invention provides a high-frequency anti-interference data cable. The high-frequency anti-interference data cable comprises a cable core and a protection layer which is wrapped on the cable core, wherein the cable core is composed of 6 to 8 threads of cable core units which are arrayed in a bundle shape and are stranded and molded; the outer layer of each thread of cable core unit is coated with an insulating anti-interference film layer which is obtained by drying and molding insulating anti-interference slurry in claim 1; the coating thickness of the insulating anti-interference film layer is 80mu m to 200mu m; an anti-interference composite layer is molded on the inner surface of the protection layer, wherein the insulating anti-interference film layer is prepared by coating the surface of each cable core unit with 80mu m to 200mu m of the slurry; the anti-interference composite layer is composed of a metal fiber textile layer, a polyvinyl chloride resin layer and a conductive high-polymer fiber layer in sequence from the protection layer to the inside; a polytetrafluoroethylene layer is further molded on the inner surface of the conductive high-polymer fiber layer. According to the high-frequency anti-interference data cable provided by the invention, the anti-interference performance of the data cable can be effectively improved; meanwhile, the transmission stability of the data cable under a high-frequency working condition can be effectively met.

A touch display panel, a manufacturing method thereof, and a display device. The touch display panel comprises a color filter substrate. A first conducting layer (1021) is formed on a base substrate (103) of the color filter substrate, and a first insulating layer (1101) is formed on the first conducting layer (1021). The pattern of the first conducting layer (1021) is identical with the pattern of a black matrix (104) formed on the base substrate (103). The pattern of the first insulating layer (1101) on the display region of the touch display panel is identical with the pattern of the first conducting layer (1021) on the display region.

The invention discloses an automatic data point alignment system and method suitable for multiple links of a transformer substation. An analog signal sending device triggers a signal and uploads the signal to a master station; the telecontrol information automatic calling and checking module actively calls the telecontrol information to a master station and performs name consistency and point number uniqueness checking to complete basic checking of the telecontrol information of each link; the message interaction module constructs a special automatic point-to-point message channel between the front end and the background of the main station, and sends change data which is uploaded and marked with acceptance marks of each channel of the transformer substation to the background automatic point-to-point module through the special message channel; and the automatic point alignment module performs caching, filtering, sorting and rule judgment on the received to-be-checked data according to whether the received to-be-checked data has an acceptance mark or not, so that the dynamic comparison function of the change data uploaded by the transformer substation is realized. The method has the advantages of being short in project implementation period, low in manpower cooperation requirement, small in influence on an in-operation system, low in transformation difficulty, high in monitoring acceptance efficiency and the like.

The invention discloses a winding type PVD physics deposition vacuum magnetron sputtering silver-plated copper alloy layer method. The winding type PVD physics deposition vacuum magnetron sputtering silver-plated copper alloy layer method comprises the following steps of purification preprocessing on the surface of a PET basal lamina, vacuum pumping, filling inert gas, heating, sputtering and compounding a plurality of metal layers and the like. The aggregate thickness of the magnetron sputtering silver-plated copper alloy layer is quite thin, and production time is effectively saved; and thesurface layer of the PET basal lamina can achieve the effect of current conduction, electromagnetic wave protection and shielding signal interference, a compound alloy layer can greatly improve the barrier property between a conducting layer and external media, the overall shielding effect is improved by the electromagnetic wave protection and the shielding signal interference.

The invention relates to a multifunctional ultrahigh-frequency partial discharge sensing device. The device comprises a shell, a first output port, a second output port, a signal coupler, a change-over switch and a signal conditioner, wherein the first output port and the second output port are arranged on the shell, the signal coupler, the change-over switch and the signal conditioner are installed in the shell, the signal coupler is used for acquiring ultrahigh-frequency partial discharge signals of high-voltage electrical equipment so as to obtain acquired signals, the change-over switch isconnected with the signal coupler, and is used for transmitting the acquired signals acquired by the signal coupler to the first output port or to the signal conditioner, and the signal conditioner is connected with the change-over switch and is used for receiving the acquired signals transmitted by the change-over switch, filtering and amplifying the acquired signals and then transmitting the acquired signals to the second output port. The device is convenient to carry, moreover, the effect that the same device can be applied to different types of detectors can be achieved, the working process is simplified, the operation risk is reduced, and the working efficiency is improved.

The invention discloses a reinforced inert gas protecting composite cable which comprises an inert gas guiding tube. The gas guiding tube is internally provided with a cross supporting frame. Three communication cables and five power cables are arranged outside the gas guiding tube. The communication cable comprises an innermost communication conductor. According to the reinforced inert gas protecting composite cable, the cross supporting frame is added in the gas guiding tube. The cross supporting frame can effectively improve pressure resistance of the gas guiding tube for preventing collapse deformation in bearing a relatively high pressure. Furthermore the communication cables and the power cables are separately arranged. The communication cable is provided with an inner shielding layer which can effectively prevent signal interference, and the communication cable is provided with an outer shielding layer which prevents signal loss. Furthermore the inner wall of the gas guiding tube is provided with an arc-shaped chute. The end of the cross frame is provided with a corresponding arc-shaped supporting plate. Therefore the cross frame can be conveniently mounted in the gas guiding tube and further can be conveniently detached from the gas guiding tube.

The invention discloses a display module and electronic equipment, and belongs to the technical field of electronic equipment. The display module comprises an antenna circuit, a metal foil and a flexible circuit board, the antenna circuit and the metal foil are arranged on the first face and the second face, opposite to each other, of a display panel respectively, the antenna circuit is connected with the flexible circuit board, and the metal foil is fixed by the flexible circuit board. The antenna circuit and the metal foil are arranged on the two faces of the edge of the display panel respectively and connected with the flexible circuit board, so that signal interference on the antenna electrode can be effectively shielded, and the transceiving performance of the antenna is improved.

The invention discloses a data automatic point-to-point system and method suitable for multi-link substations. The trigger signal of the simulated sending device is sent to the master station; the telecontrol information automatic calling and checking module actively calls the telecontrol information to the master station , and check the name consistency and point number uniqueness, and complete the basic check of the telecontrol information of each link; the message interaction module builds a dedicated automatic point-to-point message channel between the front and back of the master station, and sends The changed data sent from each channel of the substation and marked with the acceptance mark is sent to the background automatic point-to-point module; the automatic point-to-point module caches, filters, sorts and judges the received data to be inspected according to whether it has the acceptance mark, so as to realize the transmission of the substation Change data dynamic comparison function. The invention has the advantages of short project implementation period, low manpower coordination requirements, little impact on the operating system, low modification difficulty, high monitoring and acceptance efficiency, and the like.

The present invention relates to the technical field of motor control and particularly relates to a novel square wave driving filtering method of a position sensorless motor. The method comprises the steps that: a counter carries out counting while a motor runs; whether a commutation request is received or not is judged, the motor commutation action is carried out if so, and a current counting value is obtained; the motor continues to run and clear the counting value in the counter, and the counting is carried out again; a filtering depth value is obtained from the recently obtained counting value; whether the commutation request is received or not is judged again, and a current counting value is obtained if the commutation request is received again; whether the counting value is smaller than the filtering depth value or not is judged, the commutation request is ignored if so, and the motor is driven to run continuously. The software filtering of a comparator output is carried out, the abnormal signal interference of a low rotation speed is shielded, thus the compatibility of a low speed range is realized, thus the motor can smoothly run, and a wide speed adjustment range is obtained on the basis of not changing a hardware circuit.

The invention discloses a board-to-board connector with high data transmission rate and anti-signal interference, which comprises an insulating base, a first group of signal terminals, a second group of signal terminals, an isolator and a reinforcing frame; the isolator is arranged on the The inner side of the insulating base; the first group of signal terminals and the second group of signal terminals are located on opposite sides of the isolator; the reinforcing frame includes a first reinforcement part and a second reinforcement part; the isolator It includes a first isolation part, a second isolation part and a first groove; the end of the first isolation part forms a first bending arm along the direction where the first group of signal terminals is located; the end of the first isolation part It can be connected with the first reinforcing part through the three connection methods of the present invention, which can better shield the internal signal interference effect of the first group of signal terminals and the second group of signal terminals. The invention has the advantages of high data transmission rate and stable signal transmission.

The invention discloses a top-speed charging wire and belongs to the field of charging wires. The top-speed charging wire comprises at least two top-speed transmission wires and a covering layer, wherein the covering layer covers the transmission wires. The top-speed charging wire provided by the invention has the characteristics of good insulating effect, excellent signal shielding effect and rapid transmission speed.

The invention discloses an electrical connector for electrically connecting a chip module, comprising: a body with a plurality of receiving holes, the body has an upper surface; at least one protrusion protrudes upward from the On the upper surface, an insulating part is located on the raised part for supporting the chip module; a metal layer, the metal layer covers the upper surface and around the raised part; a plurality of terminals are accommodated in the receiving hole, used to connect the chip module; the metal layer covers the upper surface and the surrounding of the convex part, and the insulating part is located on the convex part to support the chip module, which ensures that the metal The layer better shields the crosstalk between the terminals, satisfies the transmission of high-frequency signals of the terminals, and prevents the metal layer from contacting the chip module, preventing the chip module from short circuiting.

The invention discloses an electric connector used for being electrically connected with a chip module. The electric connector comprises a body, at least one bump, a metal layer and multiple terminals, wherein the body has multiple accommodating holes and an upper surface; the at least one bump protrudes out of the upper surface upwardly; an insulating part is positioned on the bump and used for supporting the chip module; the metal layer covers the upper surface and the periphery of the bump; the multiple terminals are accommodated in the accommodating holes and used for being connected with the chip module in a conduction manner; the metal layer covers the upper surface and the periphery of the bump; the insulating part is positioned on the bump for supporting the chip module, so that it is ensured that the metal layer can better shield crosstalk among the terminals to satisfy high-frequency signal transmission of the terminals; and meanwhile, contact between the metal layer and the chip module also can be avoided, so that short circuit of the chip module can be prevented.

The invention discloses a high-data-transmission-rate anti-signal-interference board-to-board connector, which comprises an insulating base body, a first group of signal terminals, a second group of signal terminals, an isolation body and a reinforcing frame, wherein the isolation body is arranged on the inner side of the insulating base body, the first group of signal terminals and the second group of signal terminals are positioned on two opposite sides of the isolator, the reinforcing frame comprises a first reinforcing part and a second reinforcing part, the isolation body comprises a first isolation part, a second isolation part and a first groove, a first bending arm is formed at the tail end of the first isolation part along the direction of the first group of signal terminals, andthe tail end of the first isolation part and the first reinforcing part can be connected in three connection modes, so that the internal signal interference effect of the first group of signal terminals and the second group of signal terminals is well shielded. The high-data-transmission-rate anti-signal-interference board-to-board connector has the advantages of high data transmission rate and stable signal transmission.

The embodiment of the present invention relates to a signal isolator device. The device includes: an inner core, used to connect the signal line of the set-top box and the signal line of the TV cable; a feedthrough capacitor, which is ring-shaped and sleeved outside the insulating medium coated on the outer surface of the inner core, including the first contact surface , the second contact surface and the capacitance placed between the first contact surface and the second contact surface; the shell, including: the male end shell, used for the connection between the first contact surface and the ground wire of the set-top box; the female end shell, Used for the connection between the second contact surface and the ground wire of the TV cable; so that the DC signal between the ground wire of the set-top box and the ground wire of the TV cable is isolated by the feedthrough capacitor, and the ground wire of the set-top box and the ground wire of the TV cable The first AC signal between them is conducted through the feedthrough capacitor. The signal isolation device of the invention effectively shields the signal interference caused by the potential difference between the ground wire of the power grid and the ground wire of the cable TV network, and improves the viewing effect of the user.

The invention discloses an electromagnetic shielding polaroid and a preparation method thereof. The electromagnetic shielding polaroid implements a function of shielding electromagnetic waves througha silver nanowire hardening layer coated on the surface of a TAC film on the outer layer of the Polaroid, wherein the silver nanowire hardening layer is composed of the following components by weight:10% - 30% of urethane acrylate monomer, 2% - 10% of aliphatic urethane diacrylate, 1% - 10% of pentaerythritol triacrylate, 0.5% - 5% of light Initiator 184, 2% - 10% of silver nanowire emulsion, 10%- 50% of MIBK and 10% - 50% of PMG. The above materials are uniformly mixed and then the mixture is coated on the TAC film, and then a silver nanowire hardening layer is formed on the surface of theTAC film, so that a polaroid is prepared, wherein the polaroid can be applied to a liquid crystal display of a vehicle-mounted wireless walkie-talkie to shield signal interference of external electromagnetic waves on the wireless walky-talky system; and the polaroid also has the advantages of high light transmittance, high water resistance, high heat resistance, antistatic property and the like.

The invention provides an elevator network comprehensive line with a power supply signal and a preparation method thereof and relates to the technical field of signal transmission, wherein the elevator network comprehensive line comprises a core wire harness, a nylon filling layer, an inner sheath, an aluminum foil layer, a copper mesh weaving layer and an outer sheath; the core wire harness is embedded into the nylon filling layer; the inner sheath wraps the nylon filling layer; the aluminum foil layer wraps the inner sheath; a copper net braided layer wraps the aluminum foil layer; the outersheath wraps the copper net braided layer; the core wire harness is formed by pair twisting a plurality of core wires, wherein the core wire comprises a conductor and a PE insulating layer; the PE insulating layer wraps the conductor; and the conductor is formed by fine twisting an oxygen-free copper wire and a bulletproof wire. The elevator network comprehensive line can achieve long-distance transmission, anti-interference and anti-breakage functions.