107results about How to "Avoid Signal Crosstalk" patented technology

The invention provides a photoelectric conversion device, in which a decrease in sensitivity and a crosstalk between wirings are suppressed. Plural pixel columns are arranged in one direction, plural pixels are arranged in a different direction to the one direction in a column manner in the pixel column, and the pixel includes a photodiode PD, a reset transistor M4 for resetting the photodiode PD, and a source follower input transistor M3 for receiving a signal from the photodiode PD. An independent readout wiring 16 is individually provided for each pixel. The reset transistor M4 and the source follower input transistor M3 included in one pixel column or another pixel column are arranged between the photodiode column in one pixel column and the photodiode column in another pixel column arranged adjacent to the one pixel column.

A electrical connector includes an insulating body having a tongue plate, a plurality of upper conductive terminals having upper contact portions, and a plurality of lower conductive terminals having lower contact portions; the upper and lower conductive terminals are buried and molded in the insulating body, the upper contact portions and the lower contact portions are vertically aligned one by one and respectively exposed on an upper surface and a lower surface of the tongue plate; the upper conductive terminals vertically corresponding to the lower conductive terminals one by one so as to form a plurality of corresponding columns, and the upper and lower conductive terminals of at least one corresponding columns are fixedly connected with each other by riveting.

The present invention discloses a flat cable, which comprises signal unit sets and the insulating layer which wraps and fixes the signal unit set. The signal unit set is formed by at least two signals units arranged substantially on the same plane at an interval or side by side. The left and right sides of the signal unit set are directly wrapped by insulating layers. The insulating layer is formed by splicing and bonding at least one insulating film, and the splicing points at two ends of the insulating film are located on the upper side or the lower side of the signal unit set. In the flat cable of the present invention, the length of the overlapping portion can be set as required, effectively preventing the phenomenon such as insulating film tear and short circuit caused by insulating film tear.

The invention discloses a high-speed backplane connector with a circuit board, which is provided with a rectangle shielding interface and comprises an insulating fixed shell, an auxiliary fixed shell, a plurality of veneers, a plurality of signal contact members, a plurality of pressed-on feet, a plurality of rectangular shielding pieces and a plurality of circuit board transmission bodies. The conductive coating of the circuit board is applied to realize high-speed transmission of differential signals, thus avoiding signal crosstalk incurred by the general use of the middle part of the differential signal contact member. The connector of the invention is characterized by simple structure, superior electric performance and high-quality work.

The invention relates to an image sensor and a manufacturing method of the image sensor. The image sensor comprises a photodiode, a first conducting type isolation layer, a second conducting type shallow doping region, a first conducting type shallow doping region, a transmission tube grid electrode structure and a floating diffusion region, wherein the second conducting type shallow doping region is formed inside a first conducting type semiconductor substrate, the first conducting type shallow doping region is formed at the lower part of the second conducting type shallow doping region, the second conducting type shallow doping region is isolated in a second conducting type region of the photodiode through the first conducting type shallow doping region, and the floating diffusion region is provided with the second conducting type heavy doping. The image sensor has the advantages that through the formation of the second conducting type shallow doping region in contact with the floating diffusion region, the distance between the floating diffusion region and the photodiode is reduced, so photon-generated carriers can be more rapidly transmitted to the floating diffusion region from the photodiode, and the transmission efficiency of the photon-generated carriers is improved.

The invention discloses a back side illumination image sensor and a method for reducing the dark current of the back side illumination image sensor. The back side illumination image sensor comprises a photodiode, a first conductive type isolated layer, a gate structure of a pass transistor, and a floating diffusion zone, wherein the gate structure corresponds to the first conductive type isolated layer and is formed on the upper surface of a first conductive type semiconductor substrate, the gate structure comprises a gate oxide, a grid layer and a grid side wall, the gate structure correspondingly covers the photodiode, and the floating diffusion zone is formed in the first conductive type semiconductor substrate and is provided with second conductive type heavy doping. In the back side illumination image sensor, the defects do not easily appear at the portion, over the photodiode, of the surface of the first conductive type semiconductor substrate, and therefore the dark current is effectively prevented from being produced.

The invention relates to an electroencephalogram acquisition wet electrode. The electroencephalogram acquisition wet electrode comprises a shell, a base, a spherical substrate and an electrode column,the shell is fixed to the upper end of the base, and the spherical substrate is installed on the junction of the shell and the base and can universally move on the junction; the electrode column is installed at the lower end of the spherical substrate and can move vertically relative to the spherical substrate. The structural form of the combination of axial retracting and drawing of the electrode column and slant center adjustment of the spherical substrate is adopted, the flexibility of the electrode is improved, and the degree of fitting of curvature of the electrode and a scalp contact isimproved; meanwhile, the electrode has the function that insulation is stopped after a conducting medium is injected, it is avoided that the conducting medium is communicated with the parts among multi-channel electrodes, signal interference is avoided, the function can be utilized to simultaneously and automatically inject the conducting medium to the multi-channel electrodes through a conducting medium supply source, and effective monitoring and acquisition of an electroencephalogram for a long time are achieved.

The invention discloses a distribution area household meter phase relation inspection method based on a voltage time sequence. A dynamic time of an electric parameter corresponding to a piece of voltage data of a distribution area general meter and a user electricity meter is adjusted, a three-phase voltage base curve and a three-phase user electricity meter curve are constructed separately, the three-phase voltage base curve and the three-phase user electricity meter curve are analyzed and compared, whether a curve vector similarity of the three-phase voltage base curve and the three-phase user electricity meter curve is greater than 90% is determined, and a three-phase user phase relation matrix is generated when the curve vector similarity is greater than 90%. Beneficial effects of theinvention are that: the method effectively resolves a problem of inaccuracy of a user electricity meter phase recognized by a low voltage carrier, and effectively implements an issue of time sequencecomparison of multiple meters.

Disclosed are an imaging pixel, an image acquisition device, a fingerprint acquisition apparatus, and a display apparatus supporting an acquisition function. The imaging pixel includes a cavity (1) in which an optical-to-electrical conversion unit is accommodated. A light blocking film (3) with a light transmission pinhole (2) covers over the cavity (1), and a transparent medium layer (4) and a microlens (5) are sequentially disposed on the light blocking film (3) from bottom to top. The microlens (5), the transparent medium layer (4), and the light transmission pinhole (2) are provided so that the imaging pixel has an object-side field of view (6) with a confined angle of view. An image point or an image spot of an object point within the object-side field (6) of view falls within the light transmission pinhole (2) of the light blocking film (3); and an image point or an image spot of an object point outside the object-side field (6) of view falls outside the light transmission pinhole (2). The pinhole on the light blocking film and the microlens confine an incident light path, so that the imaging pixel has a narrow field of view. An image acquisition device based on the imaging pixel with the narrow field of view can confine an incident light path without a lens system or a pinhole imaging system, so that it becomes possible that the image acquisition device can become thinner so as to integrate with another device while acquiring a clear image.

The invention relates to an electroencephalogram acquisition electrode based on an electric conduction liquid, belongs to the technical field of brain-computer interfaces, and solves the technical problems that in the prior art, in the use process, a wet electrode is time-consuming and tedious, the continuous use time is short, automatic injection of the electric conduction liquid of multi-channelelectrodes is difficultly achieved, the contact elasticity of the wet electrode and the scalp is poor, and the use comfort level is low. The electroencephalogram acquisition electrode based on the electric conduction liquid comprises a base, a shell, an electrode column, an inlet check valve, an outlet stop valve and a wire, wherein the inlet check valve and the outlet stop valve are arranged onthe two sides of the shell respectively, the electrode column is installed on the base, and a liquid storage cavity is defined by the base and the shell. The inlet check valve and the outlet stop valve can be constructed into a device for separating the electric conduction liquid in the liquid storage cavity from an external electric conduction liquid, and the situation that the electric conduction liquid is conductive to cause signal interference between the multi-channel electrodes can be prevented. By means of the electroencephalogram acquisition electrode, long-time effective acquisition and monitoring of electroencephalogram signals are achieved.

The invention provides a keyboard, terminal equipment and a character input method. The keyboard comprises at least one key device, an energy storing device, a processor and a signal transmitter. Each key device corresponds to one power generating device. The power generating devices are used for converting mechanical energy generated when the corresponding key devices are pressed into electric energy and transmitting the electric energy to the energy storing device. The energy storing device is used for carrying out rectifying and voltage stabilizing on the received electric energy generated by the power generating devices and providing the electric energy with voltage stabilized for the processor. The processor is used for using the electric energy provided by the energy storing device for work, recognizing detection signals received when the key devices are pressed, determining at least one piece of key encoding information, and outputting character information corresponding to the key encoding information through the signal transmitter. The keyboard has an electricity self-generating function, electricity supply of the keyboard is effectively achieved, and then convenience and flexibility of using the keyboard are promoted.

The invention provides a transparent display panel, a display panel and a display device. The transparent display panel includes a plurality of first sub-pixels and a first pixel driving circuit undereach first sub-pixel; each first pixel driving circuit includes a plurality of first transistors and a first storage capacitor; the plurality of first transistors include at least one of a low-temperature polycrystalline oxide transistor and a low-temperature polycrystalline silicon transistor; and the orthographic projection of the low-temperature polycrystalline oxide transistor and/or the low-temperature polycrystalline silicon transistor and the first storage capacitor on the transparent display panel at least partially overlaps. The up-and-down stacking can reduce the area occupied by alow-light-transmittance area, and ensure the light-transmittance of the transparent display panel.

The invention provides a display device. An indicator lamp area composed of multiple pixels is arranged on a display panel so that a traditional indicator lamp located in a frame can be replaced. Compared with the prior art, the bezel narrowing and a high aperture ratio of the display device are easily achieved; elements such as indicator lamps and signal controllers do not need to be independently purchased, and therefore purchase expenses are reduced; space for elements such as signal controllers of indicator lamps does not need to be reserved on a circuit main board of the display device, and therefore containing space of other elements is added, and signal crosstalk is avoided.

The invention discloses a microwave source phase noise measuring device based on a bidirectional optical phase modulator, which comprises a microwave power divider, a laser, an optical circulator, a first branch, a second branch, an optical coupler, a photoelectric detector and a signal analysis device. A bidirectional optical phase modulator, a first fiber bragg grating and a single-mode fiber are sequentially arranged in the first branch, a second fiber bragg grating and an adjustable optical delay line are sequentially arranged in the second branch, the optical circulator is provided with three ports, and the three ports are respectively connected with the laser, the bidirectional optical phase modulator and the second fiber bragg grating. According to the invention, the single bidirectional optical phase modulator is utilized to realize a full-optical-domain frequency mixing function, so that the use of an electric frequency mixer is avoided, and the use of active devices such as a microwave amplifier is reduced. The device has the advantages of simple structure, low cost, large working bandwidth and flat response, the noise floor of the phase noise measuring system is reduced, and the measuring precision and sensitivity are improved.

The invention provides a high-speed digital signal integrated processing device for wireless communication. A hardware portion comprises five intermediate-frequency analog signal access devices and five corresponding intermediate-frequency signal high-speed data processing board cards, a high-speed data conversion and radio frequency emission device and a corresponding radio frequency high-speed data processing board card, a high-speed interconnection base board, a power module, a main board and a clock management device, wherein the radio frequency high-speed data processing board card is connected with field programmable gate arrays (FPGAs) in the high-speed data processing board cards through rapid input/output (IO) interfaces to form 3*5+2 FPGAs; the FPGAs among the board cards can be interactively called and can share resources and communicate with the main board through the high-speed interconnection base board by a compact peripheral component interconnect (CPCI)-E so as to finish corresponding high-speed data acquisition and radio frequency signal emission; and a software portion carries out configuration control and management on the whole machine. The high-speed digital signal integrated processing device can finish integrated operation of wireless communication transmission, receiving and emitting; the technical bottleneck in the conventional design can be solved; and the high-speed digital signal integrated processing device has the characteristics of high calculation capacity, wide application range, high engineering applicability and the like.

The invention discloses an MEMS ultrasonic positioning sensor. The MEMS ultrasonic positioning sensor comprises an upper layer substrate (3), a Helmholtz resonant cavity (2) formed in the upper layersubstrate (3), a piezoelectric ultrasonic emission unit (9) located on the upper layer substrate (3), an ultrasonic receiving unit (1) located at the bottom of the Helmholtz resonant cavity (2), wherein at least one through hole communicating with the Helmholtz resonant cavity (2) is formed in the piezoelectric ultrasonic emission unit (9), the resonant frequency of the Helmholtz resonant cavity (2) is the same as that of the piezoelectric ultrasonic emission unit (9), and the resonant frequency of the ultrasonic receiving unit (1) is greater than or equal to that of the piezoelectric ultrasonic emission unit (9). The MEMS ultrasonic positioning sensor can improve the energy conversion efficiency of the sensor and avoid crosstalk of the sensor.

A waveguide filter sensing unit is provided. The waveguide sensing unit includes an input waveguide for receiving an optical signal and an interference waveguide region for filtering the optical signal to remove noise therein. The waveguide sensing unit further includes a cladding layer wrapping around the input waveguide and the interference waveguide region; and an optical signal detector converting the filtered optical signal into an electrical signal. The width of the input waveguide is smaller than that of the interference waveguide region, and the refractive index of the cladding layer is smaller than that of the input waveguide and the interference waveguide region.

The invention relates to the field of high-voltage connectors and particularly relates to a novel soft-connection high-voltage connector, which comprises a soft copper bar, a wiring terminal and a cable, wherein the soft copper bar comprises an elastic arm. The novel soft-connection high-voltage connector is characterized in that the soft copper bar is connected with the wiring terminal; the matched plug part at the front end of the wiring terminal is connected with the soft copper bar; and the connection part at the rear end of the wiring terminal is connected with the cable; the elastic arm is arranged in the middle of the soft copper bar and can be bent in a certain angle range. The novel soft-connection high-voltage connector has the beneficial effects that the high-voltage connector adopts connection between the soft copper bar and the cable, the connector can be bent in a certain angle range, contact is more reliable, use and mounting dynamism of products can be improved, and the product can be used more user-friendly, and in addition, the size of the product is reduced, inner resistance of the product is reduced, and energy consumption is effectively reduced.

The invention provides a method for manufacturing a high shielding quasi plane transmission line. The method includes the steps that firstly, a dielectric substrate is machined, and a through hole is preformed in the position of a metal ground layer; secondly, metallized film layers are formed on the surface of the dielectric substrate and inside the through hole respectively; thirdly, a coplanar waveguide graph is formed and thickened through electroplating, and then an electroplated layer is formed; fourthly, an insulated dielectric layer is formed above a conduction band; fifthly, a metallized film layer is formed above the dielectric layer; sixthly, a metal connecting layer is formed above the dielectric layer and thickened through electroplating, and then an electroplated layer is formed; seventhly, independent graphs are divided into through an abrasion wheel cutting-up method. By the adoption of the scheme, compared with waveguide transmission lines, coaxial line transmission lines and other transmission lines, the high shielding quasi plane transmission line is simpler in the manufacturing process, and can be more easily integrated with generally-used micro-strip lines, coplanar waveguide transmission lines and other plane transmission lines; compared with the micro-strip lines, the coplanar waveguide transmission lines and other plane transmission lines, the high shielding quasi plane transmission line can more effectively solve the problems of signal crosstalk and the like in the plane transmission line working process.

The invention provides a connector and a signal transmission structure. The connector comprises a connector shell, wherein at least one signal pair unit is arranged in the connector shell, the signalpair unit comprises a signal pair, the signal pair comprises two signal contact pieces which are arranged at intervals, a set polygonal region is arranged at the periphery of the signal pair comprising the two signal contact pieces, the signal pair unit also comprises grounding contact pieces, and each grounding contact piece is arranged at a position of each corner of the polygonal region and isused for encircling the signal pair. The signal pair contained in the signal pair unit of the connector is encircled by the grounding contact pieces encircling to form the polygonal region, thus, thesignal pair can be shielded very well by the grounding contact pieces, signal crosstalk between two signals is prevented, the signal crosstalk of the connector is greatly reduced, and the signal transmission quality is ensured.

The invention provides a mobile terminal. The mobile terminal comprises an NFC antenna; the NFC antenna comprising a feed source, and an inductor and a capacitor which are connected with the feed source and are connected in parallel; the NFC antenna further comprises one or more from a first distributed inductor, a second distributed inductor, a third distributed inductor and a fourth distributedinductor; the first distributed inductor is positioned between the feed source and the inductor; the second distributed inductor is positioned between the inductor and a first grounding point; the third distributed inductor is positioned between the feed source and the capacitor; the fourth distributed inductor is located between the capacitor and a second grounding point, the inductor comprises alumped inductor and a metal section connected with the lumped inductor in series, the distributed inductors can enlarge the loop area of the NFC antenna, then the magnetic flux is increased, the coupling energy is increased, and therefore the performance of the NFC antenna is improved.