69results about How to "Improve drift" patented technology

The invention provides a shift register and a drive method thereof, a gate drive device and a display device. The shift register comprises a pull-up unit, a resetting unit, a pull-down unit and an output signal end, wherein the pull-up unit is connected with the output signal end and used for pulling up an output signal; the resetting unit is respectively connected with a control end of the pull-up unit and the output signal end and used for resetting the potential of the control end of the pull-up unit if the output signal is high in level; the pull-down unit is respectively connected with the control end of the pull-up unit and the output signal end and used for pulling down the potential of the control end of the pull-up unit and the output signal after the potential of the control end of the pull-up unit is reset; and therefore, the pull-up unit is switched off to control the output signal to be kept at a low level. By the shift register, the problem that threshold voltage of a pull-down thin film transistor is drifted under bias direct current voltage is solved; the problem of overhung output in a circuit of the shift register is solved; and the reliability of the circuit is improved.

A multiple channel programmable gamma correction voltage generator including a resistor ladder, buffers, select logic, and a programmable non-volatile memory device. The memory provides select values indicative of one or more stored gamma correction values. The resistor ladder includes adjustable tap resistors distributed along the resistor ladder. The adjustable tap resistors provide multiple tap voltages distributed according to the gamma correction value. The buffers receive the tap voltages and provide gamma correction voltages. The select logic selects tap points of the adjustable tap resistors to select the tap voltages based on the select values stored in the memory. Additional resistors and switch logic may be included to enable re-positioning of the adjustable tap resistor within the resistor ladder. Latches and address control may be provided on the memory to enable programming and selection of multiple gamma correction values.

The invention provides a shift register unit, a shift register circuit, an array substrate and a display device and relates to the field of manufacturing of displays. Through the invention, the threshold value voltage drift of a grid electrode of a grid line driver transistor can be reduced, and the work stability of the device is improved. The shift register unit comprises a first transistor, a pull-up closing unit, a pull-up opening unit, a first pull-up unit, a second pull-up unit, a trigger unit and an output unit. The shift register unit, the shift register circuit, the array substrate and the display device are used for the manufacturing of the displays.

The invention provides a shift register unit and a driving method, a gate drive circuit and a displaying device of the shift register, and relates to the technical field of displaying. The shift register unit and the driving method, the gate drive circuit and the displaying device of the shift register unit are capable of solving the problem that a threshold voltage of a transistor drifts under direct current bias and improving displaying quality of a product. The shift register unit comprises an upward pulling module, a pre-charge reset module, a downward pulling module, a downward pulling control module and an electrical discharge module. The shift register unit and the driving method, the gate drive circuit and the displaying device of the shift register are used for achieving gate drive scanning from top to bottom or from bottom to top.

The invention discloses a shift register unit circuit, a shift register and a liquid crystal display array substrate which are mainly designed for solving the problem of poor reliability of the existing shift register. The shift register provided by the invention comprises at least two shift register unit circuits in cascade connection, wherein each shift register unit circuit works based on two clock signals; and the unit circuit comprises an input end, a pre-charging circuit, a first level pull-down circuit, a second level pull-down circuit and an output end. By utilizing the shift register unit circuit and the shift register, the problem of drifting of the pull-down TFT (Thin Film Transistor) threshold voltage under direct-current bias voltage is solved, and simultaneously, the problem of unsteady output caused by clock transition is solved, the reliability of the circuit is improved, and the power consumption is reduced.

The invention discloses a shift register unit and a driving method, a gate drive circuit and a display device of the shift register unit, and relates to the technical field of displaying. The shift register unit and the driving method, the gate drive circuit and the display device of the shift register unit are capable of solving the problem that the threshold voltage of a transistor drifts under direct current bias, and improving displaying quality of a product. The shift register unit comprises a upward pulling module, a pre-charge reset module, a downward pulling module, a downward pulling control module and an electric discharge module. The shift register unit and the driving method, the gate drive circuit and the displaying device of the shift register are used for achieving gate driving scanning from top to bottom or from bottom to top.

The invention discloses a pedestrian positioning and trajectory tracking method and a pedestrian positioning and trajectory tracking system. An implementing mode of the method comprises the following steps: receiving acceleration information, angular speed information and magnetometer information of a pedestrian; performing filtering and threshold value segmentation on the acceleration information and the angular speed information to obtain speed state information; when the speed is non-zero, obtaining attitude information by utilizing the angular speed information; when the speed is zero, modifying the angular speed information to obtain the attitude information by utilizing the angular speed information; performing elliptical correcting on a magnetometer, and performing inclination angle compensating on the magnetometer by utilizing the attitude information to obtain a magnetic course angle; fusing the magnetic course angle and a course angle in the attitude information to obtain a fused course angle; combining the attitude information and the fused course angle, and integrating the acceleration to obtain the speed information; after the speed information is subjected to zero speed correcting, obtaining the displacement in the horizontal direction and the height in the vertical direction, and performing pedestrian positioning and trajectory tracking through the displacement and the height. The pedestrian positioning and trajectory tracking method and the pedestrian positioning and trajectory tracking system can navigate for a long time, and are high in adaptability and wide in application range.

The invention discloses a conducting material doped PDMS composite film capable of improving the longitudinal electric charge density of a generator frictional layer and a preparation method thereof.The preparation method comprises the following steps: (1) taking a substrate, and taking an aluminum foil to be adhered to the substrate; (2) spin-coating a PDMS solution on the aluminum foil, vacuumizing in a vacuum cavity after spin-coating, and then heating and curing; (3) spraying gold on the surface of the PDMS with a magnetron sputtering method, (4) carrying out plasma treatment, and spin-coating the PDMS solution; (5) vacuumizing in the vacuum cavity, heating and curing; and (6) repeating the step three to the step five to obtain the PDMS gold composite film with different numbers of gold layers. A G-TENG with high transfer electric charge density and biocompatibility and low impedance characteristic is successfully prepared, an internal electronic area is added by burying gold layers in the near surface of a frictional surface, so that the output of TENG is increased, and the gold layers are beneficial for the drifting of electrons inside the frictional layer and play a role oftrapping the electrons.

A method for driving liquid crystal display includes outputting the first pixel voltage to the first pixel in the first pixel column for varying transmissivity of the first pixel, doing the same thing as above on the second pixel to very transmissivity of the second pixel, switching on backlight module and regulating pixel electrode voltage of the first pixel to make transmissivity of the first pixel be decreased at the first preset time then regulating pixel electrode voltage of the second pixel to make transmissivity of the second pixel be decreased at the second preset time.

The invention relates to the field of positioning, and discloses a positioning method and device of a mobile terminal. The positioning method of the mobile terminal comprises the steps of obtaining a scanning fingerprint of a wireless signal at the position where the mobile terminal is; matching a fingerprint database based on the scanning fingerprint to obtain N anchor points with the highest matching score; generating a particle group based on the N anchor points; performing particle filtration on the particle group based on inertial navigation information to obtain alternative particle groups; determining the current movement model of the mobile terminal and performing particle scoring on the alternative particle groups based on the characteristics of the movement model; and obtaining a positioning solution of the mobile terminal based on the particle scoring result. The drifting and jumping probability of the positioned position can be reduced, the positioning track is enabled to be continuous, and the position positioning is accurate.

The invention discloses a vertical Zener diode structure. The vertical Zener diode structure is characterized in that N-type injection areas and P-type injection areas of a Zener diode are positioned in an N trap of an epitaxial layer; and the P-type injection areas and the N-type injection areas are arranged downwards in sequence from the silicon surface in a staggered manner. The Zener breakdown point of the vertical Zener diode structure is far away from the silicon surface, so that the drift problem of the Zener breakdown value is improved. The invention also discloses a preparation method of the vertical Zener diode structure.

The invention discloses a chip fixing glue for LEDs (Light Emitting Diodes), which is prepared form the following components by percentage content (total weight of 100percent): 4.10% -4.60%of OE-6630A (silicone main agent); 6.30% -6.80% of OE-6630B (silicone curing agent); 3.20% -3.80% of aluminum oxide powder (Al2O3); 0.85% -0.95% of silica powder (SiO2); 3.50% -3.90% of SCR1012A (silicone main agent); 25.10%-28.10% of SCR1012B-R (silicone curing agent); 43.10% -47.55% of PA-1(flake silver powder); 6.40% -7.25% of SA-1 (granular silver powder); 1.7% -2.0% of polyamide curing agent; and 0.19% -0.22% of cyclohexanone. The invention has the advantages of high positioning accuracy, high-temperature and high heat resistance, high heat conductivity, high light transmission, high refrangibility, favorable confidence degree, convenient and quick use and low price and can be widely used for the bonding of chips of LED components, such as SMD (surface mount device), PLCC (plastic leaded chip carrier), LAMP, and DISPLAY and the like.

The invention discloses a display panel and a display device. The display panel comprises at least one pressure sensor, a first substrate and a second substrate; the first substrate is provided with aplurality of supporting spacers; the second substrate is opposite to the first substrate, the second substrate is provided with a plurality of bulges, the bulges are in contact with the supporting spacers in a one-to-one corresponding mode, the surface, close to the corresponding supporting spacer, of each bulge is a first contact surface, the second substrate also includes a non-bulge area around the bulges, and the roughness of the first contact surfaces is greater than that of the surface of the non-bulge area. According to the technical scheme, the frictional force between the supportingspacers and opposite side substrates is increased, and therefore the problem of baseline drift when the pressure sensors are used for pressure detection is solved.

The invention discloses a white-light QLED (Quantum Dot Light Emitting Diode) device based on quantum dots with a pre-set size and a preparation method. The white-light QLED device comprises a substrate, a bottom electrode, a hole injection layer, a hole transmission layer, a quantum dot light emitting layer, an electron transmission layer and a top electrode, which are stacked in sequence from bottom to top, wherein the quantum dot light emitting layer is composed of the quantum dots with the pre-set size. The quantum dots with single size and single component are used as white-light light emitting materials. Based on the white-light QLED device prepared by the technology, a color drifting phenomenon of different devices along with utilization time, caused by different three-primary-color light emitting materials, in stacking and mixing structures of a previous three-primary-color white-light technology, is avoided, the structure of the device is simplified and the production cost is reduced; and meanwhile, energy transferring between the different light emitting materials is not caused, so that the light emitting efficiency is improved.

The invention discloses a conductive sensitive film three-layer structure, and belongs to the technical field of sensing. The conductive sensitive film three-layer structure comprises a substrate and an interdigital electrode sensing functional structure arranged on the substrate, and is characterized by also comprising a sensitive film three-layer structure which is arranged on and parallel to the interdigital electrode sensing functional structure, wherein the three-layer structure sequentially comprises a first non-conductive sensitive material layer, a conductive particle layer and a second non-conductive sensitive material layer from top to bottom. The conductive sensitive film three-layer structure is mainly used for a conductive sensor.

An electric potential of an epitaxial layer 2A provided under a bonding pad 5 to which a resonance circuit for a VCO is to be connected is fixed to a predetermined (Vcc) electric potential through a resistor 6 in a conventional floating state. Consequently, a speed of a change in the electric potential of the epitaxial layer 2A is increased and a value of a parasitic capacity is stabilized quickly. Consequently, a drift can be improved when a power supply is turned ON.

The invention discloses a white light QLED device based on quantum well structural quantum dots and a preparation method. The device comprises a substrate, a bottom electrode, a hole injection layer, a hole transport layer, a quantum dot luminous layer, an electron transport layer and a top electrode which are arranged in sequence from bottom to top. The material of the quantum dot luminous layer is composed of quantum well structural single white light quantum dots. Red, green and blue those three kinds of luminophors are doped in the well material of the single white light quantum dots, or the single white light quantum dots are multi-layer quantum well structural quantum dots. According to the device and the method, through utilization of the single white light quantum dot material based on a quantum well structure as the luminophors, the high-efficiency white light QLED device can be obtained; on the one hand, the device is simple in structure, a stacking technology does not need to be employed, on the other hand, energy transfer among different colors of luminophors does not exist, and the problem of loss is reduced. According to the device and the method, the problem that a white light color coordinate drifts due to the fact that the stabilities of different luminophors are different can be improved clearly in the usage process of the device.

The invention provides a compensation method for temperature drift of a robot wrist force sensor. An ARX (automatic retransmission exchange) model is applied to dynamic description of a PLS inner model to represent dynamic characteristics of a system, and an ARX-PLS model is established; limited discrete points are selected to correct the wrist force sensor, and compensation coefficients at various temperatures are obtained with adoption of the ARX-PLS model. The defect of low convergence rate of a principal component analysis method in temperature compensation of the wrist force sensor is effectively overcome, and the compensation effect is more real.

A radio spectrum therapeutic apparatus for boosting cellular immunity comprises a trolley, a therapeutic elevating platform, a universal arm folding receiving device, and four groups of therapeutic apparatuses (Group A, Group B, Group C and Group D). The universal arm folding receiving device is disposed in the rear of the trolley. The therapeutic elevating platform is disposed in the universal arm folding receiving device. Each of the therapeutic apparatuses (Group A and Group B) includes a therapeutic head, a universal arm, and a circuit control system connected with the therapeutic head, wherein one end of the universal arm is connected with the therapeutic head while the other end of the universal arm is disposed on the therapeutic elevating platform; and the circuit control system is disposed in the trolley. The therapeutic apparatuses (Group C and Group D) are disposed on one side face and the rear face of the trolley respectively. The invention provides a broadband cellular immunity boosting therapeutic apparatus which relates to a radio spectrum within the range of 3*1010 Hz to 1.2*1014 Hz and helps a cancer sufferer to recover immunity.

The invention discloses a ground ski vehicle, which relates to a ground gliding sports apparatus and belongs to the technical field of amusement, body building and apparatuses in stead of walking. The ground ski vehicle comprises two panels, two panel rotating assemblies, a panel connecting assembly, two wheel assemblies, two wheel steering shafts, two panel reset elastic devices and two wheel steering drivers. During advancing, a user pedals the panels to rotate and incline the panels left and right, and the rotation of the panels drives the wheel steering drivers to drive wheels to change the advancing direction so as to finish the actions of steering, swiveling, drifting and the like.

The present invention discloses a test method of a location system, a control terminal and a device with a storage function. The method comprises: a control terminal is connected with a test terminal and a reference terminal, and the test terminal is moved along the same path as the reference terminal; the control terminal receives position information from the test terminal and the reference terminal; and the position information difference of the test terminal and the reference terminal is employed to determine whether the position of the test terminal is abnormal or not. According to the mode, the test method of the location system, the control terminal and the device with the storage function can monitor whether the location of the test terminal has drifting abnormality or not in real time to allow researchers to immediately combine the field road condition to perform analysis of the drifting abnormality.

The invention discloses a gas water heater. The gas water heater comprises a gas water heater body, a smoke discharging system part, a wind pressure sampling device, a wind pressure sampling device and a controller. The smoke discharging system part installed on the gas water heater body, The wind pressure sampling device which is connected with the smoke discharging system part in a connected mode, The controller which is connected with the wind pressure sampling device, and the controller is used for controlling the working start and stop of the gas water heater; The gas water heater is characterized in that the wind pressure sampling device comprises a flat-mouth wind pressure sampling nozzle and an electronic wind pressure switch, one end of the flat-mouth wind pressure sampling nozzleextends into a smoke discharging channel of the smoke discharging system part, the other end of the flat-mouth wind pressure sampling nozzle is connected with a negative pressure cavity of the electronic wind pressure switch, the signal output end of the electronic wind pressure switch is connected with the controller. According to the gas water heater, parameter adjustment and production of thesmoke discharge system part are facilitated, the parameter drift problem is improved, so that the gas water heater can be effectively protected from blocking, the wind resistance performance is improved. The invention further provides a gas water heater blocking protection method.

The invention mainly provides a computer vision application-oriented anchor-frame-free target tracking algorithm, and the method based on a twin architecture can obtain more remarkable performance while keeping a good speed, so that wide attention in the visual tracking field is aroused. However, twin network branches are generally independent and lack information interaction, which limits further improvement of model performance. In order to enhance the cooperation capability of twinborn network branches, the invention provides a cross-aware network model based on a twinborn architecture, and the cross-aware network model is called as SiamCrossObject-Aware Network. In SiamCross, on the basis of mutual supervision of twinning network branches, a brand-new twinning cross-aware sub-network (Siamese Crosss-Aware Network, SCAN) is designed. The SCAN can enable the features extracted by the twin network to be effectively perceived and distinguish the foreground and the background. A tracking task is directly defined as classification and regression of each pixel based on an anchor-frame-free region candidate network, and network branch features can focus on local and global spatial information of a target.

The invention relates to a temperature color drift real-time correction device and method for an LED multi-primary-color lamp. The temperature color drift real-time correction device comprises a computer, a temperature sensor and a brightness and color measuring instrument; and the LED multi-primary-color lamp is provided with a control unit comprising a color management arithmetic unit. The method comprises the following steps of: 1) actually measuring the temperature curve original data of the lamp; 2) constructing a dynamic polynomial fitting function, and sending the dynamic polynomial fitting function to the color management arithmetic unit for storing the dynamic polynomial fitting function; and 3) obtaining brightness and color data including color coordinates (x, y) and brightnessvalues Y at different temperatures, and correcting temperature color drift data in real time. The temperature color drift real-time correction device and method have the practicability of large-scalemass production; and lamp-by-lamp measurement on a production line is not needed. With the temperature color drift real-time correction device and method adopted, for various light color outputs including color output, color temperature output and color coordinate output in a full color gamut, temperature color drift caused by temperature change can be greatly alleviated and even eliminated, and color drift of white light and various mixed color light at different temperatures is avoided. The device and method have the advantages of simple operation, efficient process, reliable data and good temperature color drift correction effect.

The invention is applicable to technical fields such as terahertz security inspection, material detection, remote sensing, and medical diagnosis, and provides a radiometer front end and terminal equipment, including: a metal box body, a groove is opened on the upper side, and a plurality of protrusions are arranged in the groove. platform; the two-stage low-noise amplifier chip and the detector chip are sequentially arranged on the corresponding boss; the quartz probe is arranged in the groove of the metal box and is located on the left side of the boss corresponding to the two-stage low-noise amplifier chip; video The amplifier is set in the groove of the metal box and is located on the right side of the corresponding boss of the detector chip; the electrical connection between adjacent devices; the temperature compensation bias circuit is connected to at least one of the two-stage low-noise amplifier chips Chip connection, which can significantly reduce the volume of each circuit, has a high degree of integration, can realize automatic assembly, reduce assembly difficulty, and can realize engineering and mass production.

The invention provides a soybean lecithin oil formula feed. The formula feed comprises the following raw materials in parts by weight: 55-65 parts of white fish meal, 5-15 parts of soybean meal, 15-25 parts of alpha-starch, 3-7 parts of fish oil, 0-1 part of a vitamin premix, 0-1 part of a mineral matter premix, 0.01-0.1 parts of arachidic acid, 0.01-0.1 parts of (carboxymethyl)dimethyl-3-[(1-oxododecyl)amino]propylammonium hydroxide, 1-2 parts of calcium dihydrogen phosphate, 2-4 parts of cellulose, 35-50 parts of crude protein, 5-15 parts of crude fat, and 5-15 parts of crude ash, and 1-4 parts of soybean lecithin oil. The soybean lecithin oil is added into the feed in order to improve growth and feed coefficient of cultivated fishes and the like at a certain degree, fat contents of intestines and livers are substantially reduced, and adverse influences are not generated. The soybean lecithin oil formula feed has the efficacies for regulating nutrition, supplementing nutrition and improving utilization rate of feed, as well as reducing dust flying and automatic grading during production of feed in the aspects of processing properties of the feed, and improving physical quality and yield of granulation. The feed can be used as a bonding auxiliary agent in aquatic product feed, in order to improve drifting and settlement of the aquatic product feed in water, and reduce feed waste and water quality pollution.

The invention discloses an X-ray tube with a hollow structure, which comprises a glass shell (2), an adapter (4), an anode assembly and a cathode assembly (1), wherein the anode assembly comprises ananode cap (5) and an anode target assembly (3), the anode target assembly (3) is welded with the anode cap (5), and the internal part of the anode target assembly (3) is of a large-aperture deep holestructure (32); and the adapter (4) extends into deepest part of the internal part of the large-aperture deep hole structure (32) and is fixed with the anode target assembly (3). The X-ray tube disclosed by the invention can effectively reduce the drift of a focal spot.

The invention relates to a system for treating haze on the periphery of a building by utilizing air convection, and belongs to the technical field of haze treatment. According to the system for treating the haze on the periphery of the building, an air convection principle is utilized, a ventilation pipeline is arranged on the periphery of the building to suck and discharge pollutants near the ground. According to the adopted technical scheme, the system comprises an installation pipeline which is pre-embedded in the building, and the ventilation pipeline is arranged in the installation pipeline; the ventilation pipeline extends to the top of the building, and a windward device is arranged at the top of the ventilation pipeline; the bottom of the ventilation pipeline is 3-5 m away from theground, and an air suction port in the bottom of the ventilation pipeline faces the north or the northwest side; and the ventilation pipeline is used for carrying out natural convection on polluted air near the ground, the polluted air near the ground is circulated to the top of the building, and therefore the purpose of purification is achieved. The system is widely used for treating the haze onthe periphery of the building.

A shift register, a display device, a gate drive circuit and a driving method. The shift register comprises a multistage shift register circuit (SR0-SRn), an Nth shift register circuit of the multistage shift register circuit comprises a precharge circuit (1), a pull-up circuit (2), a reset circuit (3) and a holding circuit, the holding circuit is provided with an eighth transistor (M8), a gate electrode of the eighth transistor (M8) is connected with a first control signal terminal (CK), and a source electrode is connected with a drain electrode. Not only is the shift registering achieved, but also a working cycle of the circuit is reduced, the voltage and the shifting problems are solved, the control of control signals to pull-down nodes is achieved through the transistor with the source electrode and the drain electrode short-circuited, the pull-down nodes are lifted rapidly when the first control signals are at a high level, the descend range of the pull-down nodes is reduced when the first control signals are at a low level, and the control of the control signals to the circuit can be achieved well.

The invention discloses a clothes comfort-level remote intelligent detection system based on a mobile terminal. The clothes comfort-level remote intelligent detection system comprises a data acquisition terminal, and the mobile terminal connected with the data acquisition terminal; the data acquisition terminal comprises several pressure transducers and pressure-voltage signaling conversion circuits correspondingly connected with the pressure transducers, the data acquisition terminal also comprises a DHT90 temperature and humidity digital sensor, a data storage and control module, a data transmission module, and a power supply module which are connected in order, the power supply module comprises commercial power, an EMI filtering module, a circuit switching module, and a standby batterymodule, the commercial power passes through the EMI filtering module and the circuit switching module in order and is connected with the standby battery module, clothes pressure, humiture continuous acquisition and storage of human body under normal operating conditions are realized, real-time data display is realized, and the system has the advantages of small volume, low power dissipation, fastspeed, and accurate testing.