458results about How to "Reduce bandwidth usage" patented technology

In an IPTV or other network, a server terminal is interconnected with a number of client/peer terminals. For peer-to-peer file downloads, a data file having multimedia content (e.g., a television show) is split into a number of portions for distribution among the peer terminals. The size of each file portion increases according to the chronological order of the multimedia content, such that the first data file portion (containing the beginning of the content) is the smallest, and the last portion (containing the end of the content) is the largest. Having been provided with their network locations, a terminal obtains the file portions in either a sequential mode, where the file portions are obtained in correspondence to the sequential or chronological order of the multimedia content, or a random mode, where the file portions are obtained irrespective of the chronological order of the multimedia content.

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 and system for controlling an apparatus including receiving data indicative of an actual state of the apparatus, defining a first viewpoint relative to at least one of the environment and the apparatus, determining a first predicted state of the apparatus at time T, determining a first predicted state of the environment at time T, producing a first virtualized view from the first viewpoint, sending a first control signal to the apparatus after producing the first virtualized view, defining a second viewpoint relative to at least one of the apparatus and the environment, determining a second predicted state of the apparatus at time T+delta T, determining a second predicted state of the environment at time T+delta T, producing the second virtualized view from the second viewpoint, sending a second control signal to the apparatus after producing the second virtualized view, and changing the actual state of the apparatus based on the first control signal.

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.

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.

The invention discloses an information push control method and device. The information push control method comprises the following steps of: acquiring historical behavior data of a current user; acquiring historical interestingness distribution of the user on different information subjects to receive a search key word submitted by the current user according to the historical behavior data of the current user; determining an information subject category corresponding to the search key word; determining real-time interestingness distribution of the user on different information subjects to calculate matching degree Mqb of Pb and Pq according to the search key word; and determining the number of pieces of information pushed to the current user according to the size of the Mqb. By applying the technical scheme, more accurate information push can be realized, the using experience of the user is improved, and the waste of system resources is reduced.

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.

This disclosure describes systems and methods for augmented reality (AR) content delivery in pre-captured environments. In one embodiment, an AR client gathers information about the physical environment with the help of sensors embedded within an AR headset. The client reconstructs a 3D model of the physical environment from the gathered information and sends it to an AR content server. Based on the 3D reconstruction information obtained at the AR content server, the server modifies the content. AR content server compares the AR content against the 3D reconstruction data and does a visibility analysis of the AR content. Based on the visibility analysis, the AR elements occluded by real objects are removed to reduce the data size of the AR content. Finally, the AR content server streams the modified content to the AR client and the AR client renders the content and sends it to the headset.

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.

This invention concerns electronic message authentication, such as email messages, to ensure valuable messages are reliably delivered to the recipient, while reducing the delivery of unwanted messages. The invention involves: Receiving an electronic message addressed to a recipient. Rejecting messages sent to unknown recipients, from compromised machines or otherwise found invalid. Testing the messages to valid recipients to determine whether the status of the sender of the message can be categorised as trusted or not-trusted. If the status of the sender cannot be categorised either way, then automatically sending a challenge message, and holding the received message pending receipt of a reply. If an acceptable reply is received, categorising the sender as trusted. And, if the sender is categorised as trusted, delivering the message to the recipient.

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.

A network apparatus in a collaboration system with a plurality of participants, the apparatus comprising: a processing structure; and a memory including computer program code, wherein the memory and the computer program code are configured, with the processing structure, to cause the network apparatus to at least: present content on a display coupled to the processing structure; select a portion of the display for sharing, the portion having the shared content; simultaneously send said shared content to said display and to an encoder for encoding; automatically discover a network server configured to distribute the shared content with the plurality of participants; couple the apparatus to the network server and transmit the shared content to the network server for distribution to at least one of the plurality of participants, such that the shared content is encoded and decoded, and displayed in real-time.