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35results about How to "High technical threshold" patented technology

Anti-counterfeiting system and label forming method, embedding method, reading method, identifying method and ownership changing method thereof

The invention relates to an invisible point code anti-counterfeiting system, an invisible point code embedding method, an anti-counterfeiting label forming method, an anti-counterfeiting mark reading method, an anti-counterfeiting label authenticity identifying method and an anti-counterfeiting mark ownership changing method. The system comprises an anti-counterfeiting mark, a mark reader for identifying the authenticity of the anti-counterfeiting mark by obtaining a digital image of the anti-counterfeiting mark and a background server for storing codes of issued anti-counterfeiting marks and relevant goods identifying information and identifying the authenticity of the anti-counterfeiting mark by assisting the mark reader. The anti-counterfeiting mark comprises invisible point codes, background images and texts and a carrier. The background images and texts are arranged on the carrier, the invisible point codes are embedded in the background images and texts, and the anti-counterfeiting mark and information of the anti-counterfeiting mark are linked through a network. The invisible point code anti-counterfeiting system, the invisible point code embedding method, the anti-counterfeiting label forming method, the anti-counterfeiting mark reading method, the anti-counterfeiting label authenticity identifying method and the anti-counterfeiting mark ownership changing method have the advantages of being high in technical threshold, convenient to use and capable of identifying immediately.
Owner:张小北

System, Method and Non-Transitory Computer Readable Medium for Embedding Behavior Collection Component into Application of Mobile Device Automatically

A system for automatically embedding behavior collection components into a mobile device application; the system includes a user interface module, a recording module, a marking module, and an embedding module. The user interface module provides an operation interface which includes tracking items. The tracking items correspond to behavior collection components. The behavior collection components transmit operation information of the mobile device to a server. The recording module records relational information respectively corresponds to each of the behavior collection components, and each relational information is a relational function selected from of a plurality of relational functions of a library. The marking module determines and marks embedding positions of the behavior collection components in the mobile device application based on the behavior collection components of the selected tracking items and relational information thereof. The embedding module embeds the behavior collection components of the selected tracking items into the marked embedding positions.
Owner:INSTITUTE FOR INFORMATION INDUSTRY

Method for realizing anti-external hanging of online game

ActiveCN101557400AEliminate the possibility of crackingFlexible calculation methodTransmissionSpecial data processing applicationsClient-sideChallenge response
The invention discloses a method for realizing anti-external hanging of online games, and the method comprises the following steps: 1) a server end sends challenge information to a client randomly and waits for the client to respond; (2) after receiving the challenge information, the client runs script codes of the challenge information which is sent by the server end in a virtual machine, and sends the result to the server end; 3) after receiving challenge response returned by the client, the server end compares the challenge response with an expected result at the server end, if the result is in accordance with the expected result, the game client is thought to be legal and trustable; if not, the game client is thought to be illegal and not trustable. By using the method, the existing or potential external hanging can be attacked effectively so as to reliably safeguard the interests of normal users and game companies.
Owner:厦门吉比特网络技术股份有限公司

Security upgrading method and system, server and vehicle-mounted terminal

The invention discloses a security upgrade method and system, a server and a vehicle-mounted terminal, and the method comprises the steps that a data plane server signs an original upgrade package through a first private key, and obtains a security upgrade package; the control plane server generates initial upgrade activity data containing a security upgrade package downloading strategy, signs theinitial upgrade activity data by using a second private key different from the first private key, and issues the signed upgrade activity data to the vehicle-mounted terminal; the vehicle-mounted terminal verifies the signature of the signed upgrading activity data by using a second public key; if the signature verification is passed, the vehicle-mounted terminal downloads the security upgrade package according to the indication of the downloading strategy, and verifies the signature of the security upgrade package by using the first public key; and if the signature verification is passed, thevehicle-mounted terminal restores the original upgrade package from the security upgrade package, and the vehicle-mounted system of the vehicle-mounted terminal is upgraded by utilizing the originalupgrade package, so that the security risk caused by the attack of the server node can be reduced, and the security of upgrading the vehicle-mounted system is improved.
Owner:GUANGZHOU XIAOPENG MOTORS TECH CO LTD

Anti-fake label and making method thereof

InactiveCN101510376ARaise the bar for manufacturingPrevent imitationStampsSynthetic resin layered productsEngineeringColloid
The invention relates an anti-counterfeit label and a manufacture method thereof. The anti-counterfeit label comprises a carrying piece, a transparent colloid and at least one microscopic carving piece; the carrying piece is provided with an upper surface; the transparent colloid is arranged on the upper surface; the microscopic carving piece is arranged inside the transparent colloid in an irregular way, and the microscopic carving piece is provided with hollow textured pattern and peripheral dimension within micron-sized range. The manufacture method of the anti-counterfeit label comprises the following steps: the carrying piece is provided; a transparent colloid blended with at least one microscopic carving piece is adhered on the upper surface of the carrying piece, wherein the microscopic carving piece is provided with hollow textured pattern and peripheral dimension within micron-sized range; and the transparent colloid is solidified. The microscopic carving piece arranged inside the transparent colloid is not only provided with the hollow textured pattern, but also arranged in an irregular way, therefore, unique identification content which can not be copied is formed, and the anti-counterfeit label can be prevented from being copied by adopting the identification and authentication of objects.
Owner:WAYSEAL

Flexible printed paper battery anti-counterfeiting label

InactiveCN101908298AHigh technical thresholdThe identification method is simple and effectiveStampsJackets/cases materialsPaper sheetEngineering
The invention relates to a flexible printed paper battery anti-counterfeiting label which comprises a front-end paper battery. The anti-counterfeiting label is characterized by also comprising an external trigger device, an excitation control circuit and a back-end anti-counterfeit realizing part, wherein the front-end paper battery is connected with the excitation control circuit, and the excitation control circuit is connected with the external trigger device and the back-end anti-counterfeit realizing part respectively. A working method comprises the following steps of: when the human body touches or closes to the external trigger device, the external trigger device is switched on to conduct the front-end paper battery and the excitation control circuit; the front-end paper battery and the excitation control circuit are conducted to operate to trigger the back anti-counterfeit realizing part, so that one anti-counterfeit distinguishing period is completed. The invention has the advantages that the anti-counterfeiting label has the function of automatic avoidance (self-destruction) after distinguishing the true from the false, thereby effectively preventing from being used illegally; the main body of the anti-counterfeiting label can be rapidly printed and produced in a large scale, the print production can be completed by matching common printing machines with specially made printing material ink boxes and inkjet equipments, therefore, the invention has low production cost and can be used on various printable hard or flexible substrate materials.
Owner:MASTERWORK GROUP CO LTD +1

A method for encrypted reading and writing information by using nanotechnology

The invention discloses a method for encrypted reading and writing information by using nanotechnology, comprising a process of encrypting and writing information into a carrier, and a process of decrypting the information on the carrier, wherein the process of encrypting and writing the information into the carrier comprises: substrate pretreatment, coating, adsorbing a first photosensitive molecular layer, writing the first encrypted information, covering the first cutoff layer, and decrypting the information on the carrier. 1. Adsorb that Nth photosensitive molecular layer on the cut-off lay, writing the Nth encrypted information, covering the Nth cut-off lay, wherein N is a natural number greater than or equal to 2 and less than or equal to M, and M is a preset value according to the encryption requirement; The thickness of the photosensitive molecular layer and the cutoff layer are nanometer scale. Combined with photosensitive technology and spectral detection to achieve information encryption and decryption, compared with traditional electronic information or digital information is more complex and difficult to decrypt, and encrypted information with high precision, strong concealment, the difficulty of cracking encrypted information is high.
Owner:CAPITAL NORMAL UNIVERSITY

Cold-chain logistics tracking tag based on nanometre thermosensitive color-changing material

The invention discloses a production method of a cold-chain logistics tracking tag based on a nanometre thermosensitive color-changing material. The method comprises the following steps that 1) a magnetic-response photonic crystal is prepared; 2) the magnetic-response photonic crystal prepared in step 1) is ultrasonically dispersed into a thermosensitive dispersion liquid; 3) the dispersion liquidin step 2) is sealed a thin container or in a polymer film; 4) in addition to a special magnetic field condition, the thermosensitive liquid film presents patterns and colors; 5) the thermosensitiveliquid film is put into a fridge to fix the patterns and colors, and a cold-chain temperature tag is obtained. The tag doesn't change color at sensitive temperatures, changes in color and pattern in excess of the sensitive temperature, and the change is irreversible. The cold-chain logistics tracking tag based on the nanometre thermosensitive color-changing material has the advantages of high sensitivity, high reliability, high anti-counterfeiting and high integration.
Owner:苏州善恩纳米功能材料科技有限公司

Magnetic resonance anti-counterfeiting ink

The invention relates to a magnetic resonance anti-counterfeiting ink. In the magnetic resonance anti-counterfeiting ink, the magnetic resonance anti-counterfeiting material is added into the ink, and the weight ratio of each raw material is: 50%-95% of the ink; 5%-50% of the magnetic resonance anti-counterfeiting material. Magnetic resonance anti-counterfeiting materials include: elements with non-zero nuclear spin or nuclear magnetic moment or elements with non-zero spin quantum number of the tested atomic nucleus, materials containing non-zero nuclear quadrupole moment elements, nuclear spin and nuclear magnetic moment are not Elements at zero, materials probed with electron paramagnetic resonance EPR or electron spin resonance ESR, materials probed with sequence magnetic resonance, materials probed with magnetic double resonance. The identification of the magnetic resonance anti-counterfeiting ink utilizes the magnetic resonance combination effect, reads the magnetic resonance digital signal at a specific position of the label containing the magnetic resonance anti-counterfeiting ink with a recognizer, detects the signal to identify the label material properties, thereby identifying the authenticity of the article, and can Identify information such as the authenticity, type and region of the item.
Owner:SHENZHEN LEAGUER ANTI COUNTERFEITING TECH +1

A method for encrypting, reading and writing information by utilizing a nanotechnology

The invention discloses a method for encrypting, reading and writing information by utilizing a nanotechnology. The method comprises a process of encrypting and writing information into a carrier anda process of decrypting the information on the carrier; the process of encrypting and writing the information into the carrier comprises the steps of substrate pretreatment, film coating, photosensitive molecule pretreatment, photosensitive molecule adsorption, encrypted information writing and cut-off layer covering. The process of decrypting the information on the carrier comprises the followingsteps of: scanning the carrier by using the low-frequency laser with fingerprint spectrums of more than two predetermined new target molecules as a scanning object by using a spectral two-dimensional imaging (Image) technology or a scanning imaging (Mapping) technology to obtain a specific arrangement of more than two new target molecules, thereby decrypting the information. The information encryption and decryption are realized by combining the photosensitive technology and spectrum detection, the fineness of the encrypted information is high, the concealment is high, and the difficulty indecrypting the encrypted information is high.
Owner:CAPITAL NORMAL UNIVERSITY

Public-network-map-aided land survey method

The invention discloses a public-network-map-aided land survey method. According to the public-network-map-aided land survey method, when a screen displays a large region, a system invokes a network map or remote sensing map of a public network map (for example, Google, Baidu or Map World) automatically to take the network map or remote sensing map as a survey basic map; when the screen displays a small range or land survey measurement planimetric point coordinates of a region to be surveyed, preinstalled present local land utilization data are selected for quickly calling in a basic map of a corresponding region by an R-TREE spatial index. The public-network-map-aided land survey method has the advantages that when mobile measurement equipment (like a GPS (global positioning system) / PDA (personal digital assistant) all-in-one machine) is used for large-region land survey, complex, time-consuming and high-technical-threshold automatic integration of present land utilization data is not needed, and accordingly, the method is rapid to deploy and convenient to use.
Owner:SOUTHEAST UNIV

A method for encrypting information using the nanotechnology

The invention discloses a method for encrypting information by using the nanotechnology, which comprises a process of encrypting and writing information into a carrier, and a process of decrypting theinformation on the carrier, wherein the process of encrypting and writing information into the carrier comprises: substrate pretreatment, coating, adsorbing a photosensitive molecular layer, writingencrypted information, and covering a cutoff layer; The process of decrypting the information on the carrier comprises: Using two-dimensional imaging (Image) technology or scanning imaging (Mapping) technology, taking the fingerprint spectrum of the new molecule as a scanning object, scanning the carrier with a low-frequency laser to obtain a specific arrangement of the new molecule, and realizingthe decryption of the information. In the invention, the encryption and decryption of the information are realized by combining the photosensitive technology and the spectrum detection, which is morecomplicated and difficult to decrypt than the traditional electronic information or the digital information, and the encrypted information has high fineness, strong concealment and high difficulty indeciphering the encrypted information.
Owner:CAPITAL NORMAL UNIVERSITY

3D printing service system supporting online processing

The 3D printing service system supporting online processing comprises a 3D model management module, a 3D printing equipment management module, a 3D model online creation module and a 3D model processing module; the 3D model management module is used for classifying and storing various 3D models according to the types of the 3D models; the 3D printing equipment management module is used for connecting each piece of 3D printing equipment to the 3D printing service system and classifying and storing each piece of 3D printing equipment; the 3D model online creation module is used for modeling a three-dimensional entity graph and generating module for generating a 3D model corresponding to the 3D entity graph, and a 3D model processing module is used for checking whether the 3D model has printability and repairing the 3D model without printability, so that the technical threshold for establishing the 3D model is reduced, the labor cost is reduced, and the service capability and the serviceefficiency of the 3D printing equipment are improved.
Owner:北京神舟航天软件技术股份有限公司

Method for preparing ready-to-eat rice based on twin-screw extruder

The invention discloses a method for preparing ready-to-eat rice based on a twin-screw extruder. The method comprises the specific steps of treating raw materials, performing extrusion and curing, performing low temperature drying on porridge rice, preparing auxiliary materials, mixing raw materials and performing aseptic packaging. Through grinding, re-combination and granulation of five-cereal raw materials, the porridge rice of which the appearance is similar with that of rice granules is produced; and besides, rice flour after gelatinizing treatment is used as a thickening auxiliary material of the ready-to-eat rice, so that the formed ready-to-eat rice finished products are ready-to-eat rice finished products which are dried and resistant to store and can dissolve quickly. When beingeaten, the ready-to-eat rice finished products only need to be put in tableware, and boiled water of 50-100 DEG C is added for brewing the ready-to-eat rice finished products; and besides, the brewedready-to-eat rice has favorable appearance and mouth feel. In addition, compared with a traditional ready-to-eat rice production technology, the method disclosed by the invention has a higher technique doorsill, and imitation by an illegal workshop being deficient in technique level can be avoided.
Owner:华俊杰

Solid temperature-sensitive color-changing label

The invention discloses a manufacturing method of a solid temperature-sensitive color-changing label. The method comprises the following steps of 1) preparing a magnetic response photonic crystal,2) ultrasonically dispersing the magnetic response photonic crystal prepared in the step 1) into a temperature-sensitive dispersion liquid,3) putting the dispersion liquid in the step 2) into polydimethylsiloxane and a curing agent, mechanically stirring until the dispersion liquid is uniformly mixed, and curing,4) enabling the temperature-sensitive liquid film to present patterns and colors under thecondition of an external special magnetic field,and5) placing the temperature-sensitive liquid film in an oven to fix the pattern and color, so as to obtain the temperature-sensitive color-changing label. The color of the label does not change within a sensitive temperature, the color and the pattern exceeding the sensitive temperature change, and the change is irreversible. The temperature-sensitive color-changing label has the advantages of high sensitivity, high reliability, high anti-counterfeiting property and high integration.
Owner:苏州善恩纳米功能材料科技有限公司

Polyimide adhesive remover composition for wafer and preparation method of polyimide adhesive remover composition

The invention discloses a polyimide adhesive remover composition for wafers and a preparation method of the polyimide adhesive remover composition, and relates to the technical field of polyimide adhesive layer adhesive removers. According to the polyimide adhesive remover composition for the wafer, provided by the invention, the alkali, the organic solvent, the alcohol amine penetrant, the carbon-nitrogen heterocyclic corrosion inhibitor and the volatilization inhibitor are compounded to jointly achieve a synergistic adhesive removal effect. The alkali preferably adopts strong alkali with pKa greater than 12 to improve the protonation ability of the adhesive remover, the alcohol amine penetrant can enhance the permeability of the adhesive remover, and the carbon-nitrogen heterocyclic corrosion inhibitor can generate a coupling effect with metal to inhibit the corrosion of the alkali to the metal; besides, a layer of isolating membrane is formed on the surface layer of the adhesive remover by using the volatilization inhibitor, so that the volatilization loss of effective components in the adhesive remover is reduced. The composition has the advantages of high reaction activity and mild treatment conditions, and can be used for removing polyimide adhesive layers in the technical fields of semiconductors, photovoltaics, display panels and the like.
Owner:珠海市板明科技有限公司

Safety processing method based on application programming, intelligent terminal and storage medium

The invention discloses a security processing method based on application programming, an intelligent terminal and a storage medium, and the method comprises the steps: obtaining and analyzing an executable file, reading header information in the executable file, and reading index information about positions where different regions are located; reading the data area according to the index information of the positions of different areas, and reading values corresponding to the index areas of the class-related information in the data area; reading basic information of one class, and reading indexes of all method names contained in the class according to the basic information; searching the class names and the method names from the character string table according to the indexes of the classnames and the method names, and modifying the class names and the method names according to a preset rule. Through the class names and the method names, original English which is meaningful and convenient to check is changed into unmeaningful English or relatively random character combinations, so that crackers are not easy to guess functions corresponding to the classes, and the safety of the APPis improved on the premise that the working efficiency of the APP developers is kept.
Owner:北京智游网安科技有限公司

Anti-fake distinguishing system and method for commodities

InactiveCN1811812ARealize anti-counterfeiting identification functionConvenient anti-counterfeiting identification functionTelephonic communicationCommerceComputer accessInternet access
Present invention provides goods forgery prevention identify system method right through telephone public network or internet transfer coding audio. System includes audio forgery prevention encoding sounder and audio forgery prevention encoding processing part, fixing telephone or mobile telephone for gathering audio forgery prevention encoding sounder signal, telephone public network computer access device connected with forgery prevention information center computer, microphone for gathering audio forgery prevention encoding sounder signal connected with subscriber computer termination, subscriber computer termination subscriber computer with internet access device which is connected with forgery prevention information center computer.
Owner:张珩

Method for preparing graphene single crystal wafer on copper-based textured thin film substrate

The invention provides a method for preparing a graphene single crystal wafer on a copper-based textured thin film substrate, comprising the following steps of: S1, providing a copper-based textured thin film substrate, and placing the copper-based textured thin film substrate in a chemical vapor deposition system for annealing treatment; and S2, introducing a gaseous carbon source, and epitaxially growing a graphene single crystal wafer on the surface of the copper-based textured thin film substrate. According to the method for preparing the graphene single crystal wafer on the copper-based textured thin film substrate, the problem of high cost caused by epitaxial growth of the single crystal graphene wafer on the single crystal substrate is solved, large-scale application of the graphenesingle crystal wafer is facilitated, and the method has important significance in wide application of graphene in the field of microelectronics.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Data exchange method

The invention provides a data exchange method, for solving the problems that: 1, the data synchronization methods have problems, including high barrier, professional skill, large server resource consumption that some needs to independently deploy servers, and being available upon pay which may be not permitted for some projects due to cost; 2, materialized views influence the performance of an origin system database, and a log shall be created to the original system for incremental data extraction; the extraction is poor in flexibility and incapable of monitoring extraction abnormality; exchange, synchronization, summarizing and allocation of data are completed by defining configuration of data sources, data extraction list objects and data extraction rules through configuration management, using a timer engine (for providing data layers and application layer interfaces) and calling a data extraction engine (for supporting the complex data extraction treating rules). The whole treating process is recorded by a monitoring engine, and the treating process can be managed in monitoring logs, abnormal pre-warning, and pre-warning exhibition.
Owner:INSPUR QILU SOFTWARE IND

Calibration system and calibration method of a weighing device

The invention discloses a weighing device calibration system, which is realized based on an Android platform. The system comprises a weighing device for acquiring and sending weight information to the Android platform and receiving an action command issued by the Android platform. The weighing device comprises a control module, a weighing sensor, a storage module and a power supply module, wherein the control module is respectively connected with the weighing sensor, the storage module and the power supply module. The Android platform which realizes communication connection with the weighing device via a serial port is used for receiving a data packet sent by the weighing device, presetting data and outputting the action command to the weighing device. The invention also discloses a weighing device calibration method based on the Android platform. The calibration system of the invention is simple and easy to operate, the overall calibration or correction process can be conveniently and quickly completed, calibration can be quickly completed without a special person, and the problems of a complicated existing calibration process and hard operation can be solved.
Owner:SINXIN INFORMATION TECH CO LTD

Anti-counterfeit label, verification method of anti-counterfeit label and generation method of anti-counterfeit label

ActiveCN108564875BImprove anti-counterfeiting technologyHigh technical thresholdStampsIdentification meansEngineeringEncryption
The invention provides an anti-counterfeiting label, a verification method of the anti-counterfeiting label and a generation method of the anti-counterfeiting label. The anti-counterfeiting label comprises at least one anti-counterfeiting identification layer and a transparent phase layer. Each anti-counterfeiting identification layer is provided with an identification pattern which is associatedwith product identification and provided with encryption information, and the identification pattern on each anti-counterfeiting identification layer is an encrypted disordered pattern. The transparent phase layers are detachably arranged on the surfaces of the anti-counterfeiting identification layers, each transparent phase layer is provided with an encrypted disordered pattern composed of a plurality of phase points, and the transparent phase layers and the anti-counterfeiting identification layers are combined to form an ordered and identifiable visualized pattern. A scanning terminal scans the visualized pattern, a disordered analytical pattern is displayed on a screen of the scanning terminal after analysis, the transparent phase layers are separated from the anti-counterfeiting identification layers and then pasted to the screen of the scanning terminal, and the disordered patterns on the transparent phase layers are combined with the analytical pattern on the scanning terminalto form product identification.
Owner:李天军

Anti-fake image printing method and device and related equipment

The invention provides a printing method and device of an anti-fake image and a related product. The printing method of the anti-fake image comprises the steps that a YMCK image of a target image is acquired; extracting YMC channel three-color imaging pixels in the YMCK image, generating a first processing image of the target image, extracting K channel single-color imaging pixels in the YMCK image, generating a second processing image of the target image, and determining a first target printing position of the first processing image and a second target printing position of the second processing image; and printing the first processed image on the first target printing position, and printing the second processed image on the second target printing position to generate an anti-counterfeiting image. According to the anti-fake image printing method, the YMC color image and the K color image are extracted, the anti-fake image is generated in the printing mode, printing of the corresponding positions of different color channel pixels of the target image is achieved, the technical threshold is high, the definition of the anti-fake image is high, and the anti-fake performance is good.
Owner:AEROSPACE INFORMATION

Questionnaire content processing method and device, server and computer readable storage medium

The invention provides a questionnaire content processing method and device, a server and a computer readable storage medium; the method comprises the steps: obtaining initial questionnaire content; obtaining at least two first target pictures according to the initial questionnaire content; randomly sorting the at least two first target pictures to obtain a first sorting result; and obtaining the target questionnaire content according to the first sorting result and the at least two first target pictures. According to the scheme, the questionnaire which can be applied to network investigation and is based on the pictures in the random order can be obtained, when the questionnaire serves as the network investigation questionnaire, the technical threshold of simulating human to answer the network investigation questionnaire by a computer can be greatly improved, so that the computer is effectively prevented from simulating answering submission of human participating in network investigation, and the network investigation anti-cheating function is improved; The problem that in the prior art, an anti-cheating scheme for network questionnaire investigation is poor in anti-cheating function is well solved.
Owner:CHINA MOBILE COMM LTD RES INST +1

A device containing micro lettering and patterns inside an optical fiber tube

The invention discloses a device with an optical fiber pipeline containing carved characters and patterns. The device comprises an optical fiber pipe body, an optical fiber protecting wire is arranged in the optical fiber pipe body, one end of the optical fiber pipe body is provided with a right cone-shaped optical fiber cover and a laser containing opening formed in the right cone-shaped optical fiber cover, and the right cone-shaped optical fiber cover is fixed on the optical fiber pipe body through a right welding part which is provided with a right welding point; the other end of the optical fiber pipe body is provided with a left cone-shaped optical fiber cover which is fixed on the optical fiber pipe body through a left welding part, and the left welding part is provided with a left welding point; one end of the optical fiber protecting wire is provided with a dustproof cap, and the other end of the optical fiber protecting wire is provided with a carved character and pattern module; a red light laser is provided with a laser ray outlet and a laser button. According to the device with the optical fiber pipeline containing the carved characters and patterns, the design is novel, true and false are conveniently distinguished, and the promotional value is higher.
Owner:深圳市比洋光通信科技股份有限公司
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