30results about How to "Improve information transmission ability" patented technology

A semiconductor device where multiple chips of identical design can be stacked, and the spacer and interposer eliminated, to improve three-dimensional coupling information transmission capability. A first semiconductor circuit including a three-dimensional coupling circuit (three-dimensional coupling transmission terminal group and three-dimensional coupling receiver terminal group); and a second semiconductor integrated circuit including a three-dimensional coupling circuit and feed-through electrode (power supply via hole and ground via hole); and a third semiconductor integrated circuit including a three-dimensional coupling circuit and feed-through electrode are stacked on the package substrate.

The present invention discloses an apparatus for automatically generating thumbnail images for a video browser and a video recording and reproducing device, and a method therefor. A difference between histograms of two DC images of a current frame I picture and a previous frame I picture is calculated and compared with a predetermined reference value for deciding a stabilization section. When the difference between the histograms of the current I picture DC image and the previous I picture DC image does not exceed the reference value, the corresponding I picture DC image is outputted as the thumbnail image. Here, a blank test is executed to exclude a dark original image whose contents are indistinguishable. Only the DC image of the I picture passing through the blank test is outputted as the thumbnail image.

The present invention features that information transmission medium, stress bearing part and stress distributing part are extended in the same direction and made to penetrate one through hole in extruding mold while thermoplastic plastic is extruded to form the integral optical cable with protecting casing. The information transmission medium is single fiber or fiber bundle. The optical cable has parallel parts, no cross, homogeneous stress, small inner stress and high information transmission performance.

The invention provides a beam correspondence method and device, user equipment and a base station. The method comprises the steps that scanning configuration information for the corresponding state ofa beam is determined, and the scanning configuration information is used for indicating that when the relative position between an antenna module of user equipment and a base station changes in the corresponding state of the beam, beam scanning is carried out to re-determine an optimal matched beam pair; in the beam corresponding state, beam scanning is triggered according to the scanning configuration information, a beam corresponding result is obtained, and the beam scanning is used for re-determining the optimal matching beam pair; and sending the corresponding result of the beam to the base station, so that the base station determines a transmission beam by referring to the corresponding result of the beam. By adopting the wave beam corresponding method provided by the invention, thetransmission performance of information transmission of the system by adopting the high-frequency wave beam can be ensured.

The present invention provides a method and system for issuing air defense and disaster prevention alarms. The method includes steps: the base station generates general alarm information; the short-wave communication module sends the general alarm information to a remote small station; and the remote small station uses the general The alarm message drives the siren. The present invention considers the requirements for confidentiality, anti-jamming, anti-interception, anti-damage, rapid reconstruction and multimedia information transmission of air defense and disaster relief alarms, and achieves comprehensive, The purpose of effectively meeting the current alarm system needs.

The invention discloses a rail transit state monitoring multi-sensor node layout optimization method and system. The method comprises firstly, determining the monitoring range of the rail transit system state and the type of a monitoring object, Wherein the monitoring range is divided into a plurality of logic areas, each logic area comprises a plurality of monitoring intervals, and the deploymentpositions of various sensors in each monitoring interval are initialized; Secondly, constructing a node optimization layout weight function; Thirdly, establishing a state sensing capability node utility function model for representing the state sensing capability of each node; Establishing a node communication performance model representing the network transmission capability of each node, and constructing a comprehensive optimization utility function of the rail transit system; And finally, determining the optimal sensor node of the rail transit system according to the comprehensive optimization utility function and a preset optimization algorithm. According to the invention, the state monitoring and sensing capability and the information transmission capability are effectively improved.

The invention discloses a forest fire prevention intelligent monitoring system and method based on big data, and belongs to the technical field of forest fire prevention. The invention provides a forest fire prevention intelligent monitoring system based on big data. The system comprises a data acquisition module, a big database, a data analysis module, a data storage module, a data processing module, a feedback module, a regulation and control module, an early warning module and an alarm module. Meanwhile, the invention provides the forest fire prevention intelligent monitoring method based on the big data, wherein the method comprises the following steps: S1, collecting monitoring data of fire factors, and carrying out transmission; S2, establishing an influence function of the fire factors in a forest environment in a safe state on a fire disaster and an association function among the factors; S3, substituting the acquired data, and outputting a result; S4, adjusting the function model to adapt to the current forest environment; and S5, carrying out early warning or alarm operation. According to the invention, the fire condition is monitored, the fire frequency is reduced from the source, and the fire disaster is more effectively prevented.

The invention discloses a microscopic imaging system that comprises an LED array including light with a plurality of wavelengths; an amplification device disposed on one side of the LED array; a diffraction grating disposed on one side of the amplification device and satisfying conditions that light with different wavelengths is refracted at different angles and that the light with the same wavelength can be refracted to the same angle; an imaging lens array and an acquisition device array that are arranged on one side of the diffraction grating, wherein the light of one wavelength is provided with an imaging lens and acquisition device group, and respective imaging lens and acquisition device groups are placed at different spatial positions so that the imaging lenses and the acquisition devices acquire light with corresponding wavelength; and a controller connected with the LED array and the acquisition device array so that the acquisition device array performs synchronous data acquisition while the LED array transforms an illumination mode. The microscopic imaging system can acquire multiple sample images at one time and greatly enhances an information transmission capability.

The invention discloses an orbital angular momentum transmission fiber high in purity and low in intrinsic crosstalk. Intrinsic crosstalk is channel crosstalk caused by a fiber structure itself, and is a crosstalk limiting value of an actual OAM optical communication system. A fiber structure with a continuous refractive index distribution curve is adopted, the OAM transmission optical purity of the fiber exceeds 99.9%, and therefore intrinsic crosstalk lower than -30dB is achieved. Compared with a common multi-mode fiber, a single fiber core with a large relative refractive index difference and a small fiber core radius can simultaneously support OAM light the number of which is more than ten for transmission. With a multi-core structure, the single fiber can support more than 190 OAM transmission signals. The fiber of the invention is simple in structure and low in loss, is easy to manufacture, and can be widely applied to a long-distance OAM optical fiber communication system.

The invention relates to the field of communication, and more particularly to a rateless code transmission method suitable for a dying channel. A Semi-Markov Dying Erasure Channel model is established, wherein the model has random channel survival time and the channel quality shifts along with the Markov state. The rateless code transmission method suitable for the dying channel is provided. Due to analysis and optimization of heuristic degree distribution design and optimal codon length, the performances like recovery probability and throughput of a transmission policy in an incompletely reliable transmission scene are verified, so that the data can be transmitted effectively when the channel has the random 'dying' interruption scene. The information transmission and recovery capability of the rateless code in an extreme communication environment are improved, and the method can be applied to the communication system in scenes like sensor networks for land battles, disaster relief, geological exploration and so on.

The invention discloses a light-operated terahertz wave 3-bit encoder and an encoding method. The light-operated terahertz wave 3-bit encoder comprises a substrate layer, a metal layer, a positioningmark and an encoding structure. The metal layer and the positioning mark cover the upper surface of the substrate layer. The coding structure is etched on the metal layer. The encoding structure is composed of a plurality of double-circle structures and a plurality of square structures. All the double-circle structures are arranged periodically, all the square structures are arranged periodically,and a double-circle array formed by all the double-circle structures and a square array formed by all the square structures are arranged in a staggered mode. Terahertz waves can be controlled, codingof three bits, namely eight states, can be achieved, and compared with a previous coding structure, the coding capacity and the information transmission capacity are greatly improved. Resonance responses of three frequency points can be controlled at the same time, the acting frequency band is wider, and the coding frequency range is wider. The method has the characteristics of simple process, simple structure and high coding rate.

The invention discloses an information processing method in an MU-MIMO (Multiple User Multiple-Input Multiple-Output) system, a terminal and a base station and is used for enhancing accuracy of feedback information of the terminal and improving information transmission performance of the system. The information processing method in the MU-MIMO system provided by the embodiment of the invention comprises the steps that the terminal calculates a channel direction index CDI of the terminal according to the number of the terminals scheduled by the base station in the MU-MIMO system, and the current receiving channel quality of the terminal, and obtains a signal to interference plus noise ratio SINR of multiple subcarriers corresponding to the CDI; the terminal calculates a channel quality indicator CQI of the terminal according to the SINR of multiple subcarriers and the terminal maps the SINR of the multiple subcarriers into an equivalent SINR; and the terminal sends feedback information to the base station, wherein the feedback information comprises the equivalent SINR, the CQI of the terminal and the CDI of the terminal.

The embodiment of the invention provides a communication resource allocation method and device and electronic equipment. The method is applied to a control device in a multi-cell NOMA network. The method comprises the following steps: when entering each preset downlink time slot, acquiring a first channel response from each base station to each terminal device on each sub-channel, a second channel response from each intelligent reflecting surface to each terminal device on each sub-channel, and a third channel response from each base station to each intelligent reflecting surface on each sub-channel in the current downlink time slot; determining a target communication resource allocation scheme in the current downlink time slot based on each acquired channel response and each preset constraint; and controlling the plurality of terminal devices, at least one intelligent reflecting surface and the plurality of base stations to allocate corresponding communication resources for themselves according to the target communication resource allocation scheme. Compared with the prior art, by applying the scheme provided by the embodiment of the invention, the information transmission performance in the multi-cell NOMA network can be improved.

The invention discloses a preparation method of a grating with continuously changing diffraction efficiency, which comprises the following steps of: adopting a first beam of light and a second beam oflight of which spectral bands are not overlapped with each other, forming interference light after the first beam of light is interfered, and forming light with continuous light intensity change in space by the second beam of light; irradiating interference light and light with continuous light intensity change in space to the photosensitive material at the same time, and obtaining a grating withcontinuously-changed diffraction efficiency; wherein the light-sensitive material is a light-cured material, the light-sensitive material is cured by interference light, and the light-inhibited light-sensitive material with continuous light intensity change in space is cured; or the photosensitive material is a material with photoinduced refractive index change. The preparation method provided bythe invention is obtained by directly exposing the photosensitive material, and mainly aims at the defect of poor uniformity of the emergent light beams of the existing optical system based on the waveguide grating coupler, so that the emergent light beams with uniformly distributed light intensity can be obtained; therefore, the imaging capability, the information transmission capability and other performances of the optical system are effectively improved.

The invention provides a communication method, a transmitting device and a receiving device of a parallel combined spread spectrum system. The method comprises the following steps: generating M + 1 alternative pseudo-random sequences, selecting one sequence as a reference sequence and recording the reference sequence as PN0, and sequentially numbering the rest sequences as comparison sequences; k '= k + 1 + [log2 (r + 1)] bit communication data d1, d2,..., dk' input by the system are divided into three segments Dc, Ds and Dp; carrying out decimal conversion on the communication data d1, d2,..., dk-r + 1 corresponding to the Dc segment to determine a reference value N'd; selecting the polarities of r comparison sequences and a reference sequence PN0 according to a reference value N'd, respectively determining the polarities of the r comparison sequences according to the communication data corresponding to the Ds segment, and determining a to-be-weighted sequence according to the communication data corresponding to the Dp segment; after weighting the sequence to be weighted, carrying out band polarity accumulation on the r comparison sequences, and superposing the reference sequence PN0 to obtain a combined sequence; and performing digital modulation on the combined sequence, and sending the combined sequence after digital modulation. According to the invention, mapping when the system input data is 0 under any parameter can be realized, and meanwhile, the information transmission capability of the parallel combination spread spectrum system is improved.

The invention relates to the field of wine, in particular to a method for preparing a white wine for women's beauty and health care. The product is obtained after the second soaking and configuration. The preparation method is simple and easy to operate. The product adopts a combination of multiple drugs to achieve the functions of beauty and health care for women, and the product has a unique flavor, good taste and no residual drug smell.

The invention discloses a microcrystal glass material with ultra wide band near-infrared light emission and a preparation method of the microcrystal glass material. The microcrystal glass material comprises the following components in percentage by mole: 20-30% of Li2O2, 30-40% of SiO2, 10-30% of Al2O3, 0.005-5% of NiO and 10-30% of Ta2O5 or Nb2O5. Due to thermal treatment, two types of microcrystal of an octahedral structure, namely, LiAlSi2O6 and LiTaO3 or LiAlSi2O3 and LiNbO3, can be simultaneously separated inside the glass, as a light emitting center, the Ni element can be doped into the two microcrystal environments simultaneously, and thus near-infrared light emission with the ultra wide band of 1.0-1.7mm is achieved. The transparent microcrystal glass is expected to be used in fields such as wide band optical amplifiers and near-infrared ultra wide band tunable lasers.

The invention belongs to the technical field of gain optical fibers, and discloses a bismuth-doped multi-component glass optical fiber used as a gain medium and a preparation method of the bismuth-doped multi-component glass optical fiber. The method comprises the following steps: melting, pouring, annealing and cooling raw materials, processing the raw materials into a fiber core glass rod, and placing the fiber core glass rod in a hollow cladding to prepare a preform; and drawing the preform rod into the optical fiber. The bismuth-doped multi-component glass optical fiber is composed of a fiber core and a cladding. The fiber core is mainly prepared from the following raw materials in percentage by mole: 10 to 40 percent of GeO2, 20 to 30 percent of Al2O3, 8 to 20 percent of MgO, 0.3 to 1 percent of Bi2O3 and the balance of SiO2. The glass optical fiber disclosed by the invention has the characteristics of high bismuth doping concentration, obvious optical fiber amplified spontaneous emission effect and the like, and can cover a near-infrared band of 1.1-1.5 microns; and the optical fiber can be welded with commercial silica optical fibers. The bismuth-doped multi-component glass optical fiber is used as a gain medium in an optical amplifier and an optical fiber laser.

The invention discloses a preparation method of a grating with continuously changing diffraction efficiency: the first beam and the second beam of light with two spectral bands that do not overlap with each other are used, the first beam of light is interfered to form interference light, and the second beam of light Form light with continuous light intensity changes in space; irradiate the interference light and the light with continuous light intensity changes in space on the photosensitive material at the same time, and obtain a grating with continuous change in diffraction efficiency; The material is cured, and the light with continuous light intensity changes in space inhibits the curing of the photosensitive material; or the photosensitive material is a material whose refractive index changes due to light. The preparation method provided by the present invention is directly obtained by exposing the photosensitive material, mainly aiming at the disadvantage of poor uniformity of the outgoing beam of the existing optical system based on the waveguide grating coupler, and can obtain the outgoing beam with uniform light intensity distribution, thereby Effectively improve the imaging capability and information transmission capability of the optical system.

The invention discloses a gateway with a virus defense function based on wireless remote sensing, and the gateway comprises a gateway host and a wireless controller, and the interior of the wireless controller is provided with a lithium battery, a wireless transmitting module and a wireless receiving module. According to the gateway with a virus defense function based on wireless remote sensing, the gateway host and the wireless controller are arranged, when home equipment needs to be operated, operation information can be transmitted to a router through the wireless network by means of a mobile phone, then the router forwards the information to the gateway host through a network cable, then the gateway host converts and processes the information, a signal transmitter transmits the information to the wireless controller, the wireless controller receives the information through a wireless receiving module, and finally the information is transmitted to the home equipment through a wireless transmitting module, so that some functions of the home equipment are adjusted, the wireless line is high in penetrating power, the influence of obstacles is small, and the safety of the householdequipment is improved. Therefore, the information conduction capability of the device is improved.