104results about How to "Reduce bandwidth usage" patented technology

Three-dimensional position information is used to segment objects in a scene viewed by a three dimensional camera. At one or more instances of an interval, the head location of the user is determined. Object-based compression schemes are applied on the segmented objects and the detected head.

A voice communication system over WiFi 802.11 network includes: WiFi phone devices, subscription servers and wireless access points. Through voice and data gateways the system can transfer both voice and data streams through WiFi; Phone devices with both wired and WiFi wireless interfaces can automatically switches between wired network and wireless network through WiFi access points. Subscription server maintains the current status of each device every time it changes location. Voice packets are prioritized over regular data packets and dispatched to different network interface by smart packet dispatcher. Quality of service for voice conversation over WiFi is achieved by various methods: piggy-tail method and ACK enhancements and other improvements to reduce delay and latency of real time voice packets.

A method of capturing video from a target computer to update a remote computer's video with the video output of the target computer. The new video frame comprises a series of new frame pixels to be captured The method comprises (A) receiving for comparison a new frame pixel from the series; then (B) comparing the new frame pixel to a corresponding reference frame pixel; then (C) if the final new frame pixel has not been captured, repeating steps A and B for the next new frame pixel in the series.

A method for reducing bandwidth used in multiple transmissions on a cellular network includes mapping at least one request of at least one end-device to a unicast channel between server and an intermediary in the network, creating a correlated multicast communication channel between the intermediary and the at least one end-device, and transferring data from the unicast channel to a multicast channel at the intermediary.

The invention discloses a three-dimension remote romance system, based on graph transmission, which comprises interactive server terminal and user terminal. Wherein, the server terminal has mode file manage unit, three-dimension romance engine unit, graph code decode compress unit, and network transmission unit; the user terminal has network transmission unit and user interactive unit; when the server terminal receives the browse request of user terminal via the network transmission unit, the mode file manage unit reads the mode file that requesting browse; using three-dimension romance engine unit to romance generate graph data, via the graph code decode compress unit to be compressed, and via network transmission unit, to be sent to the user terminal; user terminal decodes the data of compressed graph, to display it via user interface. The invention uses progressive transmission, multistage delay memory, and the prediction based on user interaction to realize the balance between high real-time property and high accurate browse, to support quick beautiful romance effect to general user.

The present invention is directed to facilitating communication within an automation system having a plurality of networks and network protocols. Specifically, a Modbus network is operably connected to a network. A fieldbus coupler operably connected to both networks having a program facilitates communication within the automation system wherein devices connected to the network can be accessed for monitoring and/or controlling via Modbus commands. The fieldbus coupler (FBC) program accepts a Modbus function code containing one or more embedded message of varying types. The FBC program using additional information contained in the Modbus function code and the message type reads or writes only the required information to and from the field devices. This specific read or write request of the information and the embedding of more than one message type reduces overhead and bandwidth usage, thus improving bus response time and efficiency.

The invention discloses an intelligent dynamic load balancing method for a high-speed real-time database. The method comprises the following steps of: configuring cluster arbitration tables with consistent content in each client and each cluster server node; dividing a background data storage module into different physical storage partitions; establishing communication and connection between the client and each cluster server node; maintaining the consistent content of the cluster arbitration tables in servers on respective cluster server nodes by respective cluster server nodes; receiving and processing a task sent by the client; initiating a data reading and writing request to a global virtual internet protocol (IP) address by the client; sending the request to a destination cluster server node by a network communication management module; and performing necessary verification by a target cluster server node after the request submitted by the client is received, and processing a legal request. According to the method, hardware and software resources of a plurality of server nodes are flexibly integrated and optimal utilization and scheduling of hardware platform recourses are realized.

A distributed streaming internet server system with multiple layers of servers, featuring data caching, file storage, and application servers. The system provides high reliability and high quality streaming media. The system is designed to be scalable so that additional capacity can be added easily as needed. Existing capacity use is optimized through reallocating user connections as necessary for load-balancing and failure management.

The invention provides an unmanned aerial vehicle cluster visual navigation task coordination method and system based on semantic text transfer. The method comprises the following steps of: determining the number of unmanned aerial vehicles in an unmanned aerial vehicle cluster and building task-oriented visual navigation; determining task division of each unmanned aerial vehicle; acquiring visual navigation information by each unmanned aerial vehicle by virtue of vehicle-mounted vision sensing equipment and/or acquiring video image information required by the visual navigation from other unmanned aerial vehicles or equipment by adopting a communication manner, and carrying out fusion processing in vehicle-mounted image understanding equipment to generate a semantic text file; compressing and sending the semantic text file to the unmanned aerial vehicle of a receiving party by the unmanned aerial vehicle of a sender; and fusing information obtained by the unmanned aerial vehicle of the receiving party according to received compressed information to generate a required visual navigation flying control instruction. The unmanned aerial vehicle cluster visual navigation task coordination method and system disclosed by the invention can be used for effectively reducing information transmission quantity in unmanned aerial vehicle cluster coordination visual navigation and are good in real-time performance, thus being an effective technology for realizing unmanned aerial vehicle cluster visual navigation task coordination.

A communication system, method and communication terminal are configured to permit bandwidth reduction when communication partners are engaged in a communication session. In one embodiment, a communication terminal such as a cellular phone or tablet may turn off at least one of its display and camera sensor within a predetermined amount of time when the terminal is detected as being positioned near a user's ear via at least one sensor of the terminal. In some embodiments, the communication terminal may also transmit one or more messages to communication devices of communication partners engaged in the communication session to inform those devices that video transmissions should no longer be sent to the communication terminal. The communication terminal and other communication devices involved in the communication session may also stop transmitting video as a result of the detection of the communication terminal being positioned near a user's ear.

Systems and methods of storing previously transmitted data and using it to reduce bandwidth usage and accelerate future communications are described. By using algorithms to identify long compression history matches, a network device may improve compression efficiently and speed. A network device may also use application specific parsing to improve the length and number of compression history matches. Further, by sharing compression histories, compression history indexes and caches across multiple devices, devices can utilize data previously transmitted to other devices to compress network traffic. Any combination of the systems and methods may be used to efficiently find long matches to stored data, synchronize the storage of previously sent data, and share previously sent data among one or more other devices.

The invention discloses a method for realizing inter-node communication confirmation mechanism and a method thereof. The method is suitable for carrying out communication confirmation between a sender node and a receiver node, comprising the following steps: the receiver node generates and saves corresponding confirmation information for received data messages of all conversation, and the corresponding confirmation information comprises conversation ID to which the data messages belong, control marks of the data messages and serial numbers of the data messages; when preset confirmation conditions are satisfied, the receiver node packages the saved confirmation information into a confirmation message and sends to the sender node. By adopting the method and the system, the amount of the confirmation messages can be effectively reduced; meanwhile, IPC bandwidth occupation is reduced and processing efficiency of the sender node is enhanced.

The present invention disclosed a method, a device and a browser for accessing to webpage to solve a problem of no cache at first access of the browser. The method comprises: creating an optimized cache area locally in advance, and preloading all webpage data required to be accessed in the optimized cache area; and when a webpage access request is initiated, querying whether the webpage data corresponding to the webpage access request is stored in the optimized cache area, if stored, reading the webpage data directly from the optimized cache area; if not stored, triggering a defaulted cache mechanism of a browser to query whether the webpage data is stored in a default cache area of the browser. The present invention may increase the access speed to webpage (especially having complex webpage script), and avoid the cache from being cleaned automatically by the browser.

The invention discloses a network interaction-based video somatosensory body-building system. The network interaction-based video somatosensory body-building system includes a server, a coach terminal and a user terminal; the coach terminal is used for establishing a one-to-one or one-to-more training relationship with the user terminal through the server, and storing exercise tasks which are formulated for a user belonging to the coach terminal to the server, and monitoring completion situation of the user terminal for the exercise tasks through the server; the user terminal is used for browsing the exercise tasks which are formulated by a coach selected by the user and transmitting evaluation results of body-building projects which are completed by the user very time and randomly-captured action pictures to the server; and the server is used for providing an interaction platform for the coach terminal and the user terminal and storing data information uploaded by the coach terminal and the user terminal. The invention also provides a network interaction-based video somatosensory body-building method. The network interaction-based video somatosensory body-building system and method of the invention are not affected by weather, not limited by sites, and not constrained by time.

The invention discloses a block chain bottom network transaction synchronization optimization method, which relates to the technical field of block chain bottom P2P network data transmission. A user transmits a transaction to a block chain node 1 in a transaction pool through a client. According to the block chain bottom network transaction synchronization optimization method disclosed in the invention, a transaction which is received but not yet broadcasted can be stored in a transaction buffer pool, transaction information which is already broadcasted and batch hash values can be stored in ahistorical buffer pool, batch transaction hash values which are completed synchronously can be recorded through the received historical transaction hash values, the hash values can be calculated forthe batch transactions through a Merkle tree, only one hash value message is sent when the transaction is subjected to secondary broadcasting, the bandwidth occupancy of the bottom P2P network is greatly reduced, and through building a buffer pool on each node of the block chain and performing hash value calculation on the transaction pool through the Merkle tree, the effect of removing redundanttransaction information is further achieved.

The invention relates to the technical field of computer system structures, and discloses a fine granularity memory access method. Invalid transmission is prevented by marking modified data and zero data in byte level, and therefore, bandwidth occupation from a high-speed cache data area to a memory is reduced, and cost of additional writing is reduced; and in addition, for a memory device with writing loss, when the method is adopted, mean writing times can be reduced, service life can be prolonged and simultaneously power consumption can be reduced.

The invention discloses a voice signal transmitting and receiving device and method. In the device, a coder is used for coding current acquired to-be-transmitted voice signals; a processor is used for classifying the voice signals and/or signals obtained after coding by the coder, and is used for executing corresponding packet loss prevention treatment for the classified voice signals; and a transmitter is used for transmitting the voice signals processed by the coder and the voice signals processed by the processor. According to the technical scheme provided by the invention, the code rate of the voice code stream as well as the occupied bandwidth are lowered, at the same time, the pocket loss prevention ability of the voice signals is maintained, and the user experience is not affected.

The invention discloses a method of automatic update and belongs to the field of information safety. The method comprises the following steps: downloading configuration files from a download server end by a downloader, and analyzing the configuration files to obtain signature values and all configuration items; and authenticating the signature values, obtaining current configuration items in the configuration items and analyzing the current configuration items when authentication is successful, obtaining download information of the current configuration items, and judging whether the current configuration items satisfy update conditions according to the download information, if the current configuration items do not satisfy the update conditions, the next configuration item is analyzed in order; if the current configuration items satisfy the update conditions, corresponding new files are downloaded; if signature files need to be updated, the corresponding signature files are downloaded and the signature files are authenticated; if the signature files are authenticated successfully, corresponding update operation according to a preset execution mode is executed, and the next configuration item is analyzed in order; and if the signature files are authenticated unsuccessfully, the method is finished. When a few files need to be updated, update of the few files can be achieved, so that use of bandwidth is reduced, and update modes are flexible.

The embodiment of the invention provides a memory access processing method and a controller. The method includes the following steps: a counter is adopted to count the time between two neighboring accesses of each line of a dynamic random memory (DRAM) to acquire a timing result T1; and if the time T1 corresponding to one line of the DRAM is greater than the refresh cycle T2 of the DRAM, then the line is accessed and processed to be refreshed. In the embodiment of the invention, the time between two neighboring accesses of each line is counted, refresh operation does not need to be carried out anymore if the line is accessed in the refresh cycle, so that the frequency of refresh is decreased, and thereby the bandwidth occupied by cyclic refresh is saved; for a line which is not accessed in the refresh cycle, a one-time access mode is adopted to substitute for refresh, special refresh operation does not need to be taken into consideration, and thereby the design is simpler.

A method and apparatus for reducing bandwidth use in a portable device is provided. A method of using a storage module in a device comprises receiving data in the device and identifying a code in the data. The method further comprises replacing the code in the data with corresponding terms in the storage module, prior to displaying the data.

The invention relates to a multi-party session achieving method based on a session initiation protocol (SIP). The method mainly solves the problem that the prior art can not be used due to incompatibility of an operation client side and a server side. The method comprises the steps that (1) all multi-media meeting rooms are established in a pre-appointed mode, (2) interpreters are called to be in a meeting system, (3) all participants except the interpreters are connected to the meeting system in a calling-out mode by a multi-point control server, (4) the multi-point control server is connected with multiple terminal agents through the SIP, and transmits a service description protocol (SDP) of a multimedia meeting to terminals in the process of connection establishing, (5) multimedia meeting session is conducted, (6) the session is finished, and current multimedia meeting room resources are released. According to the technical scheme, the problem is well solved. The multi-party session achieving method based on the SIP can be used for achieving a multi-party session based on the SIP.

A system and method for transmitting a data stream between a server and a user terminal, comprises at least one satellite gateway associated with a satellite router communicating with at least one satellite terminal associated with a terminal router, wherein the terminal router is configured, when it receives a stream request from a user terminal, to search for it in its memory resources and, if appropriate, transmit it to the user terminal, the satellite router is configured to transmit the request to the server, estimate a popularity of the stream and transmit a message of correspondence between the stream and broadcasting parameters then convert the stream into a point-to-multipoint stream adapted to the broadcasting parameters, the terminal router is configured to convert point-to-multipoint streams into point-to-point streams and transmit them to the user terminals.

The invention relates to a pest identification system and a method based on machine vision and a convolutional neural network, and belongs to the technical field of artificial intelligence. The systemmainly comprises an image acquisition module, a model training module, a model test module, a visual identification module, an information classification detection module and a training updating module. The method mainly comprises an image acquisition step, a model training step, a model test step, a visual identification step, an information classification detection step and a training updatingstep. According to the disease and pest identification system and the method based on machine vision and the convolutional neural network, a large amount of image data can be obtained at fixed pointsand fixed time; visual identification and convolutional neural network model testing are placed at an acquisition front end, invalid image bandwidth occupation is reduced, network resources are optimized, identification efficiency is improved, a feedback and updating mechanism enables the model to be continuously optimized in a gradient mode, a front end model is synchronized in real time, and disease and pest identification accuracy is effectively improved.

The invention discloses a conference system based on an electronic white board. The conference system comprises a computer, a video unit, an audio unit, an electronic white board unit, a printing unit, a communication unit and a display unit. The video unit is used for collecting video information of a conference site, processes the video information and transmits the processed video information to the communication unit. The audio unit is used for collecting sound information of the conference site, processes the sound information and transmits the processed sound information to the communication unit and the printing unit. The electronic white board unit is connected with the computer and used for allowing conference presenters to write information. The printing unit receives the processed sound information and prints the processed sound information in real time. The communication unit is used for transmitting the information transmitted by the video unit and the audio unit to the display unit. The display unit is used for displaying the information transmitted by the communication unit. By means of the conference system, content written by the conference presenters can be conveniently stored, and the sound information of conferences can be automatically printed.

The invention provides a method and device for quick access to a webpage, and aims to solve the problem of no cache during first access of a browser. The method comprises the following steps: locally establishing an optimal cache region in advance, and preloading all webpage data to be accessed in the optimal cache region; when initiating a webpage access request, querying whether the webpage data corresponding to the webpage access request is stored in the optimal cache region; directly reading the webpage data from the optimal cache region if the webpage data is stored; triggering a default cache mechanism of the browser to query whether the webpage data is stored in the default cache region of the browser if the webpage data is not stored. According to the invention, the access speed of the webpage (particularly a complex script page) can be improved, and the problem that the cache is automatically cleared by the browser can also be avoided.

A multi-stage switch system includes a line card chassis (LCC) and a fabric card chassis (FCC). The LCC is configured with multiple line cards (LCs) and the FCC is configured with a stage-2 switch element (S2). The multi-stage switch system further includes a first switch combination and a second switch combination. The first switch combination and the second switch combination are configured on the LCC and the FCC respectively, and multiple LCs establish cross communication through the first switch combination, the second switch combination, and the S2. The first switch combination includes a stage-1 switch element (S1) and a first buffer area and the second switch combination includes a stage-3 switch element (S3) and a second buffer area. The multi-stage switch system can forward packets within the chassis by means of buffering the packets when guaranteeing the three-stage packet forwarding, and thus reducing the bandwidth occupancy of the FCC.

A method and system for selective enablement of tile compression. The method includes receiving a graphics primitive for processing in a set-up unit of a graphics processor and determining a primitive characteristic that indicates a probability of whether a final compression of a tile related to the primitive will be retained. Compression for the tile related to the primitive is allowed when the characteristic indicates the final compression will be retained. Compression for the tile related to the primitive is disallowed in the characteristic indicates the final compression will not be retained.

Scaled video for pseudo-analog transmission in the spatial domain is described. Boundaries are determined for M L-shaped chunks of coefficients of at least one frequency-transformed video frame of a group of pictures (GOP). The boundaries are determined based at least on variances of the coefficients of the M L-shaped chunks, such as by reducing or minimizing the sum of the square roots of the variances of the coefficients. Corresponding power scale factors for the M L-shaped chunks are determined based at least partly on the variances of the coefficients of the M L-shaped chunks, and the coefficients of the M L-shaped chunks are scaled using the corresponding power scale factors. The pixel values of the frames (e.g., the frames in the spatial domain) are transmitted on a pseudo-analog channel. At the receiver, retained spatial redundancy enables denoising in the spatial domain prior to de-scaling in the frequency domain.

A surveillance video accumulation system pertaining to the present invention includes a plurality of surveillance camera units and a video accumulation unit that are connected with each other via a network. Among pieces of video data that have been encoded according to a prediction encoding method and transmitted from all the surveillance camera units, the video accumulation unit accumulates video data transmitted from a selected one of the surveillance camera units. Before the selection, if specified as a surveillance camera unit that is expected to shoot a subject, each of the surveillance camera units encodes video data of the subject based only on intra frame prediction and transmits the encoded video data to the accumulation unit.

The invention provides a flooding restraining method and apparatus. The flooding restraining method comprises the steps of receiving a VXLAN (Virtual Extensible Local Area Network) multicast message having a free ARP (Address Resolution Protocol) message identifier and carrying a free message; and generating public network ARP flooding restraining information based on the VXLAN multicast message, wherein a VXLAN identifier of the public network ARP flooding restraining information, an address of a source tunnel end point, an IP address of a terminal and an MAC address of the terminal correspond to a VXLAN identifier of the VXLAN multicast message, an outer layer IP address of the VXLAN multicast message, a transmitting end IP address of the free ARP message, and a transmitting end MAC address of the free ARP message respectively. Based on the method and the apparatus, an exchanger serving as a gathering point in a VXLAN generates the public network ARP flooding restraining information so as to restrain ARP message flooding in the VXLAN.