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32results about How to "Implement dynamic changes" patented technology
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Dynamic adaptive code rate selection method based on MPEG-DASH (MPEG-Dynamic Adaptive Streaming over HTTP) protocol
InactiveCN106993237AImplement dynamic changesImprove playback qualitySelective content distributionVideo qualityClient-side
The invention discloses a dynamic adaptive code rate selection method based on a MPEG-DASH (MPEG-Dynamic Adaptive Streaming over HTTP) protocol. The dynamic adaptive code rate selection method comprises the steps of: firstly, establishing a HTTP connection between a server and a client; by the client, sending a HTTP Get request to the server, requesting to download a MPD file and storing the MPD file; after the server receives the request of the client, by the server, responding to the client and sending the MPD file, and by the client, downloading the MPD file and parsing the downloaded MPD file; according to an URL address obtained by parsing the MPD file, firstly downloading one part of a slice at the minimum code rate, placing the slice into a cache region, carrying out calculation, statistics and recording on a network bandwidth when the video slice is downloaded, and predicting a network bandwidth when a next video slice is downloaded; and by combining a current residue condition of video slices of the cache region, selecting a code rate for downloading the next video slice until the end. An effect of improving video quality to the greatest extent in the premise of smoothly carrying out playing is achieved, and viewing experience of a user is greatly enhanced.
Owner:ZHONGBEI UNIV
Relay amplification device with transmit-receive function and transmit-receive control method
ActiveCN1913392ARealize two-way amplificationAchieve improvementRadio transmissionControl functionSignal production
This invention discloses a relay amplification device with the TR control function including: a coupling unit and a working state control unit, in which, the coupling unit couples the RF signals from the base station to a first TR switch unit and a working state control unit separately, which controls the conduction of the up-link of the relay amplifying device based on the RF signal received from the base station, its power amplification, cut-off and close of the power amplifier of the down-link or controls the down-link conduction and its power amplifier, the cut-off of the up link and shut of its power amplifier, besides, this invention also provides a control method for TR signals of the relay amplification device.
Owner:DATANG MOBILE COMM EQUIP CO LTD
An encryption communication method and device
InactiveCN101056171AImplement dynamic changesImprove securityUser identity/authority verificationComputer hardwareCommunications security
Owner:HUAWEI TECH CO LTD
Electronic commerce implementation method and system based on grid
InactiveCN107301579AReduce logistics costsEnhanced Mesh Generation EfficiencyBuying/selling/leasing transactionsE-commercePopulation density
The invention discloses an electronic commerce implementation method and system based on a grid, and belongs to the technical field of geographic information and electronic commerce. The method is based on the following scheme: on the basis of obstacle characteristics including population density, areas of region, streets, rivers and the like, generating the grid, and injecting a positioning function and electronic commerce functions including publishing and the like for the grid, wherein the grids are associated and cover a certain region; utilizing a grid positioning tool to position the grid where a merchant is positioned, and on the basis of own abilities, utilizing a grid publishing tool by the merchant to select one or a plurality of grids to publish own stores to realize the association of the merchant and the grid; utilizing the grid positioning tool by a buyer to position the gird where the merchant is positioned to realize a purpose that the store, the commodity or service in the grid are visible; and carrying out transaction by the merchant and the buyer through the electronic commerce on the grid. The method can be used for the fields including the electronic commerce and the like.
Owner:徐罡
System for detecting normal communication of low-power-consumption Bluetooth and method thereof
ActiveCN106850003ARealize data transmissionImplement dynamic changesNear-field transmissionHigh level techniquesComputer sciencePower consumption
The invention discloses a system for detecting normal communication of low-power-consumption Bluetooth and a method thereof. The system disclosed by the invention comprises a scanning low-power-consumption Bluetooth module, a display low-power-consumption Bluetooth module, a low-power-consumption Bluetooth connection module and a communication module. The method specifically comprises the following steps: (1) determining a primary end and a slave end for low-power-consumption Bluetooth communication; (2) establishing a Bluetooth broadcast information list, and accessing to the Bluetooth; (3) inputting the write characteristic value and the notification characteristic value at the primary end; (4) enabling the primary end and the slave end to transmit data mutually; (5) verifying whether the data of the primary end and the slave end is consistent; and (6) determining whether the low-power-consumption Bluetooth can normally transmit the data. According to the system and method disclosed by the invention, the write characteristic value and the notification characteristic value can be dynamically changed to ensure that the system and method have the advantage of detecting whether the low-power-consumption Bluetooth produced by different manufactures has the normal communication function.
Owner:XIDIAN UNIV
Event extension method of Form based on JavaScript
InactiveCN110598152AImplement dynamic changesEasy to detectWebsite content managementSpecial data processing applicationsEvent typeDatabase
The invention discloses an event extension method of a Form based on Javascript. According to the invention, the event type of the Form is determined; registration is carried out on html; a basic object A bound with a Form event is defined; a method B for packaging the Form event is defined; the method B is instantiated into a variable on the basis of a basic object A, so that in a form packagingmethod, a change event registered in the basic object A is triggered according to an event flow to dynamically change a form value; and finally, when a js file is called, a calling object C is instantiated according to the method B, and the type is transmitted. At the moment, registration and definition of the Form event are completed, in one Form event, before interaction between a submitted formand a background is achieved, the Form event is applied, the interaction efficiency can be improved, a user does not need to be reminded to modify input after the background returns error information, and meanwhile the page effect can be changed according to data returned by the background.
Owner:CHENGDU DBAPP SECURITY
Android animation execution method, device, terminal, and readable medium
PendingCN109064531AShorten cycle timeSmooth connectionVisual/graphical programmingAnimationAnimationComputer terminal
An embodiment of the invention discloses an Android animation execution method, a device, a terminal and readable medium. The method includes receiving a target value change message, defining an end value of a second animation according to the target value change message, defining a start value of the second animation according to the end value of the first animation, and setting an open value ofthe second animation according to the start value of the second animation, wherein the open value of the second animation is smaller than the start value of the second animation; Invoking an animationconstruction method to construct a second animation according to a start value of the second animation and an end value of the second animation; The first animation listening function is called to determine the execution animation value of the first animation, and when the execution animation value is equal to the start value of the second animation, the animation start method is called to startthe second animation. The embodiment of the invention provides an Android animation execution method, a device, a terminal and a readable medium, which realize the dynamic change of the animation target value in the animation execution process, enable the animation execution to be more smooth, and improve the user experience.
Owner:WUHAN DOUYU NETWORK TECH CO LTD
Method for realizing automatic zoned constant pressure in field rotation irrigation by utilizing frequency converter
InactiveCN110999768AImplement dynamic changesNo human interventionWatering devicesFluid pressure control using electric meansFrequency changerCommunication interface
The invention provides a method for realizing automatic zoned constant pressure in field rotation irrigation by utilizing a frequency converter, and belongs to the field of automatic control on large-scale irrigation. According to the method, on the basis of an existing variable-frequency speed-regulation constant-pressure irrigation system, the frequency converter is connected with a communication module by using a frequency converter serial port in a wired manner; the frequency converter is configured to be in a serial port communication state; the frequency converter is controlled by a communication interface; the communication module is connected with remote configuration software; and the configuration software reads pressure configuration information, and remote configuration is performed with the cooperation of the executing process of a rotation irrigation unit through the communication module to realize a dynamic change to keep pressure constant. The method solves the problemthat control over water supply pressure of large-area irrigation is not reasonable.
Owner:贵州航天智慧农业有限公司
Micro-service-based back-end splitting strategy
InactiveCN111026468AClear structureAvoid redundant codeExecution paradigmsSoftware engineeringMechanical engineering
The invention discloses a micro-service-based back-end splitting strategy, and relates to the technical field of micro-service splitting. The micro-service is split into an upper side and a lower sidewhich comprise a portal layer and a core layer; the portal layer provides an interface for the outside and is used for receiving an input parameter called by the interface, returning processing dataand performing simple service logic processing; the core layer is a base layer, is responsible for main service logic processing, provides support of a portal layer interface for calling of a lower layer interface, and is responsible for interaction with a database. According to the method, the micro-service is split into the portal layer and the core layer, so that the micro-service becomes lighter and thinner in structure, and overall maintenance, upgrading and reconstruction of the system are better facilitated; the core layer serves as a base layer, the interface can provide rich and comprehensive data, the portal layer can be changed and packaged into different interfaces according to needs, and dynamic change of the portal layer is achieved.
Owner:UNICLOUD (NANJING) DIGITAL TECH CO LTD
Method and system for changing extension display identifier data information
InactiveCN106657854AEasy to changeImplement dynamic changesTelevision system detailsColor television detailsData informationData mining
The invention relates to a method and system for changing extension display identifier data information. The method comprises the following steps: firstly obtaining attributes and attribute parameters of to-be-modified contents, searching an address of the to-be-modified contents in the extension display identifier data information according to the attributes of the to-be-modified contents, then when extension display identifier data corresponding to the to-be-modified contents can be modified, converting the attribute parameters of the to-be-modified contents into binary numerical values according to an extension display identifier data standard, writing the binary numerical values in the address corresponding to the extension display identifier data, and supplementing the extension display identifier data information to obtain the changed extension display identifier data information. By adoption of the method and system for changing the extension display identifier data information, the extension display identifier data information can be modified dynamically, and users can conveniently modify the extension display identifier data information.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD
Switching value acquisition circuit and method
ActiveCN111983298AImplement dynamic changesNoise Rejection Threshold SatisfiedVoltage/current isolationPower supply testingControl powerControl engineering
The invention discloses a switching value acquisition circuit and method. The circuit comprises a control power supply state detection loop, an MCU signal acquisition control loop and at least one switching value acquisition loop. The switching value acquisition loop comprises a main acquisition optocoupler and an auxiliary acquisition optocoupler; and the MCU signal acquisition control loop is used for responding to the level signal detected by the control power supply state detection loop, controlling to disconnect the auxiliary acquisition optocoupler to acquire the switching value signal only through the main acquisition optocoupler, or controlling to start the auxiliary acquisition optocoupler and the main acquisition optocoupler to acquire the switching value signal together. According to the invention, different power supply voltage levels can be controlled; one group of optocoupler outputs or two groups of optocouplers are selected in parallel to output; the transmission gain of an acquisition loop is dynamically changed by acquiring the voltage of a control power supply, noise suppression thresholds required by different control power supply voltages can be met, the reliability of a circuit system is improved on the basis of the design of a passive device on a high-potential side, and meanwhile, the engineering debugging cost is reduced.
Owner:NANJING PANENG TECHNOLOGY DEVELOPMENT CO LTD
Transmitter control method and control device thereof
ActiveCN105093994AImplement the polling functionImplement sleep functionProgramme controlComputer controlSleep stateInput control
A method for controlling a transmitter, comprising: awaking and initiating the transmitter by a trigger signal generated by a timer; detecting whether the transmitter receives an input control parameter from outside of the transmitter, and if yes, updating an input control parameter stored in the transmitter by using the received input control parameter; reading the input control parameter currently stored in the transmitter; performing operations based on the read input control parameter so as to control the transmitter to select one sensor signal from a plurality of sensor signals, amplify the selected sensor signal with a gain within a first gain range, and output the amplified sensor signal; and after determining that the transmitter has accomplished a task specified by the read input control parameter, resetting the timer, and entering into a sleeping state until the timer generates the trigger signal.
Owner:DELTA ELECTRONICS SHANGHAI CO LTD
Android frame animation execution method, device, terminal, and readable medium
ActiveCN109062620AGuaranteed smooth executionImplement dynamic changesBootstrappingAnimationAnimationComputer terminal
An embodiment of the invention discloses an Android frame animation execution method, a device, a terminal and a readable medium, wherein the method comprises: Using Handler mechanism to generate Android frame animation, Specifically, the frame animation is started according to the frame animation start-up state message, the frame animation is executed according to the frame animation execution state message, and the frame animation progress is updated through the loop timer in the Handler class to control the pictures to be called from the picture collection corresponding to the frame animation in turn, thereby realizing the frame animation execution; And the picture set corresponding to the frame animation can be changed according to the received frame animation change message during theexecution of the frame animation. The embodiment of the invention provides an Android frame animation execution method, a device, a terminal and a readable medium, which realize the dynamic change ofthe frame animation content in the frame animation execution process, enable the frame animation execution to be more smooth, and improve the user experience.
Owner:WUHAN DOUYU NETWORK TECH CO LTD
Interrupt processing method and device based on virtual machine monitor, terminal equipment and chip
PendingCN114780209AShorten the timeImprove interrupt response efficiencySoftware simulation/interpretation/emulationTerminal equipmentArbiter
The invention discloses an interrupt processing method and device based on a virtual machine monitor, terminal equipment and a chip. The method comprises the steps that an arbiter arranged in a privileged virtual machine VM configures interrupt use permission for a non-privileged VM; and the virtual machine monitor establishes direct connection between the non-privileged VM and the physical peripheral according to the interrupt use permission of the non-privileged VM. According to the scheme, the efficiency of interrupt response based on the virtual machine monitor can be improved, and the flexibility of a direct connection function between the VM and the physical peripheral is improved.
Owner:BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
Transmitter and monitoring system thereof
ActiveCN105094025AImplement the polling functionImplement sleep functionProgramme controlComputer controlMultiplexingAudio power amplifier
The present disclosure discloses a transmitter and a monitoring system using this transmitter, the transmitter includes: a multi-to-one multiplexing switch configured to receive a plurality of sensor signals of a plurality of channels through a plurality of input terminals, select one sensor signal from the plurality of sensor signals, and output the selected sensor signal through a output terminal; a first variable gain amplifier configured to receive the selected sensor signal, amplify the selected sensor signal with a gain within a first gain range, and output the amplified sensor signal; a control parameter input terminal configured to receive an input control parameter from outside of the transmitter; and an operating and switching selector configured to perform operations according to the input control parameter, so as to control the multi-to-one multiplexing switch to select the one sensor signal and control the gain of the first variable gain amplifier.
Owner:DELTA ELECTRONICS SHANGHAI CO LTD
A service monitoring system and method based on random numbers
ActiveCN112583584BPrevent replay attacksFix timing issuesKey distribution for secure communicationEncryption apparatus with shift registers/memoriesMonitoring systemData rate
The invention relates to a service monitoring system and method based on random numbers, including a distributed random number generator for generating random numbers, combined with the connection relationship between monitoring nodes and monitoring and management servers, through a hash-based message authentication code algorithm HMAC Complete monitoring node identity authentication and monitoring node collection and reporting of monitoring information. The present invention utilizes the characteristics of the distributed random number generator to effectively solve the problem of the security identification of the monitoring node by the monitoring management server and prevent replay attacks. Effectively limit the rate, thereby improving the security of the service monitoring system and improving the efficiency of collecting information and reporting.
Owner:ZHENGZHOU XINDA JIEAN INFORMATION TECH
Information Processor and Construction Method Based on Formal Domain Fusion
ActiveCN102902522BImplement dynamic changesImprove development efficiencyProgram initiation/switchingSpecific program execution arrangementsMulti fieldReconfigurable computing
Owner:SOUTH CHINA UNIV OF TECH
Android frame animation execution method, device, terminal and readable medium
ActiveCN109062620BGuaranteed smooth executionImplement dynamic changesBootstrappingAnimationAnimationEngineering
The embodiment of the present invention discloses an Android frame animation execution method, device, terminal and readable medium, wherein the method includes: using the Handler mechanism to generate an Android frame animation, specifically starting the frame animation according to the frame animation opening state message, and according to the frame animation Execute the status message to execute the frame animation, and update the progress of the frame animation through the cycle timer in the Handler class, so as to control the pictures to be sequentially called from the picture collection corresponding to the frame animation, so as to realize the execution of the frame animation; and during the execution of the frame animation, The picture set corresponding to the frame animation may be changed according to the received frame animation change message. An Android frame animation execution method, device, terminal, and readable medium provided by the embodiments of the present invention realize dynamic change of frame animation content during frame animation execution, make frame animation execution smoother, and improve user experience.
Owner:WUHAN DOUYU NETWORK TECH CO LTD
Video data processing method and video data processing system
InactiveCN105847965AImplement dynamic changesSolving problems that cannot be changed dynamicallySelective content distributionData processing systemComputer graphics (images)
The invention provides a video data processing method and a video data processing system. The video data processing method is characterized in that whether a current first video instruction is to-be-processed video data can be determined; when the first video instruction is the to-be-processed video data according to the determining result, a second object can be acquired according to the first object of the first video instruction; a second video instruction can be generated according to the first video instruction and the second object; the second video picture corresponding to the second video instruction can be drawn according to the second video instruction. By adopting the technical scheme provided by the invention, the problem of the prior art of the inability of dynamically changing the object of the video picture can be solved.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
Relay amplification device with transmit-receive function and transmit-receive control method
ActiveCN1913392BRealize two-way amplificationAchieve improvementRadio transmissionAudio power amplifierControl signal
This invention discloses a relay amplification device with the TR control function including: a coupling unit and a working state control unit, in which, the coupling unit couples the RF signals from the base station to a first TR switch unit and a working state control unit separately, which controls the conduction of the up-link of the relay amplifying device based on the RF signal received from the base station, its power amplification, cut-off and close of the power amplifier of the down-link or controls the down-link conduction and its power amplifier, the cut-off of the up link and shutof its power amplifier, besides, this invention also provides a control method for TR signals of the relay amplification device.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Lake management system based on LoRa technology
InactiveCN114705240ARealize online continuous automatic monitoring and analysisHigh degree of visualizationMeasurement devicesParticular environment based servicesData processing systemEcological environment
The invention relates to the field of lake management, in particular to a lake management system based on a LoRa technology, which comprises ecological environment monitoring nodes arranged around a lake area and a management terminal communicated with the ecological environment monitoring nodes through a LoRa-based wireless sensor network, the ecological environment monitoring nodes are fixedly arranged in a lake basin to be monitored based on monitoring anchor rods, the ecological monitoring nodes in the same monitoring basin form different monitoring rings based on preset monitoring targets, and lake ecological environment parameters are collected; data collected by the ecological environment monitoring nodes are transmitted to the management terminal through the LoRa-based wireless sensor network, and a corresponding lake state analysis report is generated and transmitted to the remote server in real time after being analyzed and processed by a built-in data processing system. According to the invention, online continuous automatic monitoring analysis of the lake ecological environment can be realized, the data visualization degree is high, and managers can find abnormal conditions in the lake ecological environment in time.
Owner:青海省河湖保护服务中心
Transmitter control method and control device thereof
ActiveCN105093994BImplement dynamic changesImplement the polling functionProgramme controlComputer controlSleep stateInput control
A transmitter control method, comprising: a wake-up step of waking up and starting the transmitter through a trigger signal generated by a timer; an input control parameter update step of detecting whether the transmitter receives an input control parameter from outside the transmitter, If received, update the input control parameters stored in the transmitter with the received input control parameters; the input control parameter reading step reads the input control parameters currently stored in the transmitter; the sensor signal acquisition step, according to the performing operations on the read input control parameters to control the transmitter to select a sensor signal from a plurality of sensor signals, amplify the selected sensor signal with a gain within the first gain range, and output the amplified sensor signal; and sleep Step, when it is determined that the transmitter completes the task specified by the read input control parameter, reset the timer and enter a dormant state until the timer generates the trigger signal.
Owner:DELTA ELECTRONICS (SHANGHAI) CO LTD
Detection of watermarks in signals
InactiveCN103201794AImplement dynamic changesReliable watermark detectionTelevision system detailsMultiple keys/algorithms usagePattern recognitionEngineering
The invention provides for a method and a device for the detection of a watermark in a signal. A first signal is compared with two or more second signals. The second signal with the closest match contains the same watermark as in the first signal. Data indicative for the second signal with the closest match is output as an indication of the watermark in the first signal. The invention further provides for a head-end system that provides watermarked content from which the watermarks are detectable by the watermark detection device.
Owner:IRDETO ACCESS
A cloud-integrated wi-fi device ad hoc networking method
ActiveCN112165735BImplement dynamic changesAvoid paralysisParticular environment based servicesNetwork topologiesThe InternetConfiguration generation
A cloud-integrated Wi‑Fi device self-organizing network method belongs to the field of protocol communication control technology, comprising the following steps: S100, the cloud server designates a server under the SSDP protocol, and designates a client under the SSDP protocol to complete the Internet of Things topology configuration, generate configuration information, and then push the configuration information to the Wi-Fi router through the Internet, the configuration information includes at least one topology layer of the Internet of Things, and one is specified in each topology layer The upper-level IoT node identifier and several lower-level IoT node identifiers correspondingly associated with the upper-level IoT node identifier; S200, when the server is offline or the server is updated, the cloud server redesignates a networked device as a new server. Through this solution, the dynamic change of device identity within the network can be realized, which facilitates ad hoc networking among multiple devices, increases flexibility, and at the same time avoids network paralysis caused by server disconnection.
Owner:杭州雅观科技有限公司
Method used in key consultation of USB KEY audio ciphering and deciphering device
ActiveCN101335615BImplement dynamic changesImprove securityKey distribution for secure communicationTelecommunications linkCommunication link
The invention discloses a method used for the key agreement of a USB KEY audio encryption / decryption device, which comprises the following two courses: one course is that the USB KEY audio encryption / decryption device carries out encryption processing on a collected audio signal according to set state, and the other is that the USB KEY audio encryption / decryption device carries out decryption processing on a received digital audio signal according to the type of the digital audio signal data. Through a key agreement carried out in the USB KEY audio encryption / decryption device between a sender and a receiver, the method of the invention realizes dynamic change of the encryption / decryption key and the encryption / decryption algorithm, then overcomes the defect that the encryption / decryptionkey and algorithm of the USB KEY audio encryption / decryption device in the prior art is single and fixed, improves the safety and reliability of the audio communication and transmission, strengthens the anti-destroy ability of the encrypted audio data and ensures the encryption intensity of the audio data which is impossibly stolen in a computer or a communication link.
Owner:FEITIAN TECHNOLOGIES
Dynamic adaptive code rate selection method based on mpeg-dash protocol
InactiveCN106993237BImplement dynamic changesImprove playback qualitySelective content distributionVideo qualitySelf adaptive
Owner:ZHONGBEI UNIV
Cloud integrated Wi-Fi equipment ad-hoc networking method
ActiveCN112165735AImplement dynamic changesAvoid paralysisParticular environment based servicesNetwork topologiesThe InternetConfiguration generation
The invention provides a cloud integrated Wi-Fi equipment ad-hoc networking method, and belongs to the technical field of protocol communication control. The method comprises the following steps that:S100, a cloud server specifies a server under an SSDP protocol, specifies a client under the SSDP protocol, completes topological structure configuration of the Internet of Things, generates configuration information, and pushes the configuration information to a Wi-Fi router through the Internet, wherein the configuration information comprises at least one stage of topology structure layer of the Internet of Things, and a superior Internet of Things node identifier and a plurality of subordinate Internet of Things node identifiers correspondingly associated with the superior Internet of Things node identifier are specified in each stage of topology structure layer; and S200, when the server is offline or the server is updated, the cloud server re-designates one networking device as a newserver. According to the scheme, the dynamic change of the identity of the equipment in the network can be realized, the ad-hoc networking among a plurality of pieces of equipment is facilitated, theflexibility is improved, and meanwhile, the network paralysis caused by offline of the server is avoided.
Owner:杭州雅观科技有限公司
An Intelligent Audio Broadcasting System with Automatic Negotiation Parameter Configuration
InactiveCN102983925BImplement dynamic changesBroadcast transmission systemsBroadcast systems controlWireless transceiverTransceiver
The invention relates to an intelligent audio broadcast system automatically negotiating parameter configuration. The intelligent audio broadcast system comprises a sending system and a receiving system, the sending system comprises a wireless audio sending device used for broadcasting audio signals, the receiving system comprises a wireless audio receiving device and a sound module, the wireless audio receiving device is used for corresponding to the sending device and receiving audio broadcast, and the sound module enables the received audio signals to be amplified to enable a horn to produce sound. The sending system further comprises a sending auxiliary wireless transceiver used for transmitting configuration parameters to each receiving module, the receiving system further comprises a receiving auxiliary wireless transceiver used for negotiating with the sending system and configuring the parameters of the wireless audio receiving device, and the sending auxiliary wireless transceiver and the receiving auxiliary wireless transceiver are in the work pattern of double-direction wireless radio. The intelligent audio broadcast system has the advantages that double communication is utilized, the sending device and the receiving device can negotiate configuration of channels with each other, and the sending device corresponding to the receiving device can be changed in a dynamic mode.
Owner:林永宗
Network data encryption and decryption device and method
PendingCN114666047AImplement dynamic changesImprove securityKey distribution for secure communicationMultiple keys/algorithms usageTransport layerEncryption decryption
The network data encryption and decryption device comprises a first key generation unit, an encryption unit, a second key generation unit and a decryption unit, the first key generation unit is used for extracting a feature field in the message, generating a first key according to the feature field and outputting the first key to the encryption unit; the encryption unit is used for encrypting a transport layer load of the message by using the first key according to an encryption algorithm agreed between the source address and the destination address, and transmitting the encrypted message to a network; the second secret key generation unit is used for extracting a feature field from the network message to form a second secret key and outputting the second secret key to the decryption unit; and the decryption unit is used for decrypting the transport layer load of the message from the network by using the second key according to a decryption algorithm agreed between the source address and the destination address, and outputting the decrypted message to the application equipment of the destination address. The encryption and decryption key used in the invention realizes dynamic change, the security is improved, and the cost is low.
Owner:北京从云科技有限公司
Light pulse shaper based on double-array fiber grating and working method thereof
InactiveCN102707437BIncrease the wavelength intervalImplement dynamic changesCoupling light guidesFiberGrating
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
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