110results about How to "Realize the filtering effect" patented technology

An image processor is provided which simplifies filter processing and increases the speed when an image is decoded, and is suitable for realizing effective screen effect.

In deblocking filter processing, as to a pixel array intersecting a boundary between adjacent blocks, pixel values v₂′ to v₇′ after filtering are computed by filter arithmetic equations as shown below

v₂′=(v₂+v₅)/2+(v₂−v₅)/4

v₃′=(v₃+v₅)/2+(v₃−v₅)/8

v₄′=(v₄+v₅)/2

v₅′=(v₅+v₄)/2+(v₅−v₄)/8

v₆′=(v₆+v₄)/2+(v₆−v₄)/4

v₇′=(v₇−(v₇−v₄)/8.

The invention discloses an LTCC filtering Balun based on resonator coupling. The LTCC filtering Balun comprises a semi-wave-length resonator, two quarter-wave-length resonators, three feeders and four floors, wherein the semi-wave-length resonator, the two quarter-wave-length resonators, the three feeders and the four floors are distributed on eleven conductor layers and connected through metallization through holes. One input port and two output ports are formed in the three feeders respectively; the semi-wave-length resonator is respectively coupled with the two quarter-wave-length resonators, the three resonators are coupled with the three feeders respectively to form two filtering networks, and the filtering characteristic is achieved. In addition, the 180-degree phase difference of the two output ports is achieved through the characteristic of constant-amplitude opposition of two open ends of the semi-wave-length resonator. The LTCC technology adopted in the LTCC filtering Balun comprises a plurality of layers of structures, the size of a filter is reduced, and the LTCC filtering Balun has novelty, creativeness and practicability.

The invention discloses a middle-infrared waveband transmission type sub-wavelength metal grating, which belongs to the technical field of function material and device. The metal grating comprises a zinc selenide glass substrate and a metal film which is located on the surface of the zinc selenide glass substrate and is provided with a periodicity hole structure; and in the periodicity hole structure, radius r of single hole is smaller than 1/2 of hole period P, and the hole period P is 1-10mu. The middle-infrared waveband transmission type sub-wavelength metal grating uses a sub-wavelength periodicity structure of less than infrared wavelength to realize selective transmission of infrared rays in the middle-infrared waveband of 2.5-25mu, and meanwhile shields the function of microwave millimeter waveband electromagnetic wave. The middle-infrared waveband transmission type sub-wavelength metal grating has the characteristics of simple structure and easy implementation, and can be applied to infrared detection device requiring electromagnetic shielding.

The invention discloses a resource distribution method, device and terminal based on a super-fusion storage system, relates to the technical field of storage, and aims to solve the problems that in the prior art, a distribution mode is not reasonable enough when storage resources are distributed for data, and thus, the storage resource distribution efficiency under the super-fusion storage systemis low. The method comprises the following steps: calculating storage requirements of to-be-stored data according to storage information of the to-be-stored data; acquiring a storage resource list; filtering the corresponding storage resources in the storage resource list by a preset rule and classification labels of the storage resources according to the storage requirements to obtain an available storage resource list, wherein the classification labels are used for classifying the storage resources according to different dimensions, and at least comprise one or more of position labels and performance labels; and distributing the storage resources corresponding to the available storage resource list for the to-be-stored data. The method is suitable for distributing the storage resources in the super-fusion storage system.

The invention provides an electric adjusting power divider with a filter function. The entire circuit structure of the electric adjusting power divider is symmetric, and the power dividing ratio is 1:1. Two pairs of quarter-wave resonators which are coupled with each other form two filter networks, and the characteristic of band-pass filtering is achieved. The matching of three ports of a circuit and the isolating of two output ports of the circuit are achieved by resistors. According to an on-load variable capacitance diode, the electrical length of the resonators and the electrical length of a feeder line are adjusted by changing the on-load voltage of the on-load variable capacitance diode, and the purpose that the center frequency is adjustable is achieved. In addition, three transmission zeros are introduced by source load coupling, so that the electric adjusting power divider has high selectivity and is also good in stopband suppression effect.

Broadband filter antenna, includes five layers from top to bottom, The first layer structure comprises a top layer patch structure, the second layer structure comprises a bottom layer patch structure,the third layer structure comprises two folding resonators, the fourth layer structure comprises a large metal formation with a pair of vias, and the fifth layer structure comprises a feeding structure. The invention solves the problem of large plane size and realizes the filtering performance of the antenna. Three reflective zeros are generated by stacked multi-patch resonator to widen the bandwidth of the antenna. The odd mode of the resonator produces the low-end radiation zero, and the coupling between the top and bottom patch structures produces the high-end radiation zero, so as to improve the frequency selectivity of both sides of the working band. By adjusting the impedance ratio of the first part and the second part of the folding resonator, the low-end radiation zero can be adjusted while maintaining the bandwidth. The out-of-band mode is suppressed by using the short-circuit branch loaded on the feeder to improve the out-of-band suppression at the high end of the antenna frequency.

The invention discloses a wireless radio frequency energy collection RFID tag system based on a metamaterial. The system comprises an RFID tag antenna, an RFID chip, a rectifying circuit, an energy management circuit, a microprocessor and a sensor. The rectifying circuit is connected with the energy management circuit; the energy management circuit is respectively connected with the RFID chip, themicroprocessor and the power supply end of the sensor; two output ends of the RFID tag antenna are respectively connected with a radio frequency signal of the RFID chip and an input end of the rectifying circuit; the microprocessor is respectively connected with the RFID chip and the sensor; the RFID tag antenna comprises a split ring resonator metasurface, a dielectric substrate and a groundingcopper layer, the metasurface adopts three split rings made of metamaterials and embedded at equal intervals, the opening difference between an outer ring and a middle ring is 180 degrees, and an opening of an inner ring is determined by load impedance; and the rectifying circuit consists of an impedance matching network, a rectifying diode and a direct-current filter which are sequentially connected. The system is small in size and simple in structure, and can be used for a wireless sensor network.

The invention provides a patterned substrate, a mask used for manufacturing the patterned substrate and a patterned substrate manufacturing method. The patterned substrate is a patterned substrate with microstructures which consist of kinds of luminous bodies and reflecting bowls, can greatly improve the luminance of an LED (light-emitting diode) chip and can especially improve axial luminance. Masks which form the patterned substrate use pinhole diffraction and filter principles, the structure is simple, the special design is not required, the masks are easy to prepare and the cost is low. The patterned substrate manufacturing method adopts a pinhole diffraction exposure and ICP (inductively coupled plasma) etching method, the process is simple, the method is easy to realize, the progress of introducing concepts and structure of macroscopic fields into the microscopic LED field to improve the axial luminance of the LED chip is accelerated.

The invention discloses a slot-coupled filtering antenna, which comprises: a feed network layer, a first dielectric substrate, a grounding layer, a second dielectric substrate and a rectangular parasitic patch, wherein the first dielectric substrate is located below the second dielectric substrate, an air layer is reserved between the first dielectric substrate and the second dielectric substrate,the first dielectric substrate is used for fixing the feed network layer and the grounding layer, the second dielectric substrate is used for fixing the rectangular parasitic patch, the feed networklayer is located at the bottom layer of the first dielectric substrate and is used for transmitting signal energy, the grounding layer is located at the top layer of the first dielectric substrate, isprovided with a gap, and is used for coupling the energy of the feed network layer to the rectangular parasitic patch at the top layer, and the rectangular parasitic patch is located on the top layerof the second dielectric substrate and serves as a radiation unit of the antenna to be used for radiating energy to a free space. On the premise that a filtering structure is not directly introduced,the broadband filtering characteristic and the high-gain radiation characteristic of the antenna are achieved.

The invention discloses an optics differentiator based on a time-domain pulse shaping system. The optics differentiator comprises a mode-locked fiber laser MLL, a first dispersion device, an erbium-doped fiber amplifier EDFA, a Mach-Zehnder modulator MZM, a polarization controller PC, an arbitrary waveform generator AWG, an optical delay line ODL, a second dispersion device, and a frequency divider. The principle of a time-domain pulse shaping system is used, and spectral filtering characteristic of the differentiator is shifted to time domain from frequency domain. Through rationally designing a modulation signal generated by the arbitrary waveform generator AWG and changing the shape of the modulation signal, differential results in different orders and different bandwidths are obtained, and an optical differentiation function in flexibly adjustable order and bandwidth is realized. Various components used in the optics differentiator belong to common devices, and have good compatibility with an existing optical fiber communication system.

The invention discloses a broadband dielectric resonator filtering antenna based on a multimode resonator, and the broadband dielectric resonator filtering antenna comprises a dielectric resonator antenna, a metal floor, a dielectric substrate, a microstrip feeder line and the multimode resonator, the metal floor is attached to the upper surface of the dielectric substrate, and the dielectric resonator antenna is arranged right above the metal floor, a rectangular gap is etched in the center of the metal floor, the microstrip feeder line and the multimode resonator are attached to the lower surface of the dielectric substrate, the multimode broadband resonator is loaded on the microstrip feeder line, five modes are excited at the same time to achieve the broadband effect, the filtering effect can be achieved by loading the multimode broadband resonator on the microstrip feeder line, and the out-of-band rejection effect is good. The antenna has quasi-elliptic function band-pass response, and is simple in structure and high in integration degree, the 10dB impedance bandwidth of the antenna can reach 32%, the in-band average gain is 9.3dBi, the out-of-band rejection exceeds 20dB, and different bandwidth and frequency band characteristics can be realized by adjusting the sizes of the antenna and the resonator.

The invention discloses an efficient screening device for quartz sand production. The efficient screening device comprises a box body and a mounting seat. The box body is connected with a closing doorthrough a movable shaft, the closing door is provided with a locking block, the locking block is matched with a lock groove formed in the box body, the front and rear sides of the mounting seat are provided with electric telescopic rods, the two electric telescopic rods are jointly connected with the bottom of the box body, the top of the box body is provided with a feeding port, and the bottom of the box body is provided with a discharging port. The size of mesh holes in a sieve plate of the device can be selected according to the required quartz sand particle size, so that the screened quartz sand meets the requirements of enterprises, and the screening efficiency is high; and the selected sieve plate is in threaded connection with a first screw hole and a second screw hole through bolts to be fixed, and the sieve plate is easy to install and disassemble.

The invention relates to an intelligent fruit peeling apparatus based on internet of things. The apparatus comprises a fruit screening device, a peeling chamber, a foreign material separation chamber,a foreign material compression chamber, a water regeneration chamber, a circulating water control chamber and a control display part. Through the peeling device with a specific structure, differently-sized fruits can be quickly peeled. By adjusting heights of friction heads, fruit with different thicknesses can be peeled. Fruit peels and other waste can be processed with high efficiency because aseparation board with a specific structure is arranged and a separation rotary cylinder rotates.

The invention relates to a screening machine, in particular to an agricultural rapeseed screening machine. The invention provides the agricultural rapeseed screening machine being automatic in screening, convenient to collect and capable of thoroughly screening impurities. The agricultural rapeseed screening machine comprises a base, a funnel, a baffle and a separation device; and supporting columns are symmetrically arranged on one side of the top of the base, the funnel is arranged between the tops of the supporting columns, the lower part of the funnel is connected with the baffle in a sliding mode, and the separation device is arranged at the top of the base. The agricultural rapeseed screening machine achieves the effects of automatic screening, convenient collection and thorough screening of the impurities; a servo motor is started to drive a rotating shaft to rotate, and through cooperation between the separation device and a screening device, the separation device preliminarilyscreens rapeseeds while the rapeseeds fall; and when the rapeseeds fall on a screening frame, the screening frame moves left and right to secondarily screen the rapeseeds, in this way, the rapeseedscan be automatically screened, and the effect of thoroughly screening the rapeseeds can also be achieved.

The invention relates to a shell breaking device, in particular to an agricultural automatic peanut shell breaking device. The agricultural automatic peanut shell breaking device is low in labor intensity, high in working efficiency and free of damage to peanuts. The agricultural automatic peanut shell breaking device comprises a base, brackets, a pushing mechanism and an extrusion mechanism, wherein three first supporting columns are arranged on the base; the two brackets are arranged on the front side of the base; the pushing mechanism is arranged among the tops of the three first supportingcolumns; and the extrusion mechanism is arranged on the left side of the upper front part of the base. According to the agricultural automatic peanut shell breaking device, an air cylinder telescopicrod extends forwards to drive a discharging plate to move forwards, then a first sliding block is driven to move forwards, a user manually pulls a material blocking plate rightwards, and peanuts falloff from a discharging port; and a first connecting rod drives a first rack to move downwards, so that a second sliding block is driven to move downwards, a first spring is compressed to extrude thepeanuts on the material blocking plate, shells of the peanuts are broken, and the extrusion effect is achieved.

The invention discloses a dual-polarized filtering patch antenna with high selective gain. The dual-polarized filtering patch antenna comprises a metal reflection floor, a first dielectric substrate,a second dielectric substrate, a first metal column, a second metal column, a first metal feed sheet and a second metal feed sheet which are sequentially arranged from bottom to top, a preset distanceis kept between the metal reflection floor and the first dielectric substrate, a preset distance is kept between the first dielectric substrate and the second dielectric substrate, an air layer is formed, two input through holes are formed in the metal reflection floor, the metal feed pieces are connected with the input through holes through metal columns respectively, and the metal columns and the input through holes form input ports. The first dielectric substrate is provided with a first rectangular patch, the first rectangular patch is provided with four slot lines which extend from fourcorners of the first rectangular patch to the center and are not intersected with each other, the second dielectric substrate is provided with a second rectangular patch, and the center of the secondrectangular patch is provided with a cross-shaped slot line; the dual-polarized filtering patch antenna has impedance matching characteristics, and the rectangular patch is applied to introduce a radiation zero point, so that the dual-polarization structure is reserved, and the filtering performance is realized.