145results about How to "Save bandwidth" patented technology

Improved duplicate and near-duplicate detection techniques may assign a number of fingerprints to a given document by (i) extracting parts from the document, (ii) assigning the extracted parts to one or more of a predetermined number of lists, and (iii) generating a fingerprint from each of the populated lists. Two documents may be considered to be near-duplicates if any one of their fingerprints match.

The instant invention provides for a system and method for asynchronously sharing, backing up, and distributing data based on immutable entries. The system which is layered upon an existing operating system automatically stores, queues and distributes requested data among users.

Systems, methods, and other embodiments associated with layer two (L2) encryption for data center interconnectivity are described. One example system includes a receive logic to receive an unencrypted L2 switched frame (UL2SF). The UL2SF may include a payload and an L2 header. The example system may also include an encryption logic to selectively encrypt the UL2SF into an encrypted frame if the UL2SF is to be sent through an L2 virtual private network (L2VPN) requiring encryption. The example system may also include a delivery logic that adds a header to the encrypted frame. The header may include data to identify a decryption function to decrypt the encrypted frame and routing information for the encrypted frame. The delivery logic may also provide the encrypted frame to the L2VPN, where the providing includes selectively sending the encrypted frame as one of, a point to point packet, and a multipoint packet.

The invention discloses a method of realizing local exchange in a base station controller, which includes: a core network side judges whether a first user equipment and a second user equipment locate under the same base station controller; if yes, send local exchange message to the base station control; the local exchange message includes: local exchange orders, the first user equipment mark and the second user equipment mark; after receiving the local exchange orders, the base station controller performs local exchange on the data between the first user equipment and the second user equipment. The invention also discloses a corresponding core network equipment and a network system. The technical proposal provided by the invention can reduce user plane data exchange time delay among user equipments under the same base station controller and at the same time, save the bandwidth between the base station controller and the core network.

Digital rendering over a network is described. Rendering resources associated with a project are stored in a project resource pool at a rendering service site, and for each rendering request received from a client site the project resource pool is compared to current rendering resources at the client site. A given rendering resource is uploaded from the client site to the rendering service only if the project resource pool does not contain the current version, thereby conserving bandwidth. In one embodiment, redundant generation of raw rendering resource files is avoided by only generating those raw rendering resource files not mated with generated rendering resource files. Reducing redundant generation of raw resources is also described, as well as statistically reducing the number of raw resource files required to be uploaded to the rendering service for multi-frame sessions.

A method for switching node main-standby controllers based on content distribution network is disclosed by the present invention, including the process that a node standby controller detects the status of the current node main controller, and when the node main controller is abnormal, the node standby controller selects one node standby controller to be the new node main controller by replacement according to a preset rule. A content distribution network is also disclosed by the present invention. The present invention can avoid the problem that a manager changes the node main controller blindly, which is caused by a network anomaly while not the failure of the node main controller, thus the performance of the manager is effectively improved and the bandwidth of the network is saved.

A system and method for exchanging information between clients separated by firewalls is disclosed. A server may receive the information as posted through a browser client from beyond a first firewall and relay it to another client beyond a second firewall without lowering the security levels of the firewalls.

The invention discloses a local data updating method based on an erasure code cluster storage system, which comprises the following steps: receiving a data D0 updating request sent by a user; updating a data D0 into a data D0'; sending the data D0' to a data node to be updated; reading the data D0' from a local disc to a memory by the data node to be updated; calculating a provisional data block set needed by m redundant nodes in the memory of the data node to be updated; writing the data D0' into the local disc by the data node to be updated; sending m provisional data blocks onto the m redundant nodes by the data node to be updated through the network at the same time; reading an original redundant data Pj by the j redundant node from the local disc, and calculating to obtain a new check data Pj'; and writing the check data block Pj' obtained through calculating into the local disc by the redundant node. Due to the adoption of the local data updating method based on the erasure code cluster storage system, the consumption of the bandwidth can be reduced effectively, the load pressure of the update server can be decreased, and the data updating performance can be improved.

The invention discloses a multi-screen interaction method for an intelligent terminal and an intelligent television. The method comprises the following steps: (1) creating network connection between every two of the intelligent television, the intelligent terminal and a server, (2) acquiring a same interface from the server by the intelligent television and the intelligent terminal respectively, and (3) executing operation in the local interface of the intelligent terminal by the intelligent terminal, meanwhile sending operational orders to the intelligent television, and executing the same operation by the intelligent television in the corresponding position of the local interface of the intelligent television. The multi-screen interaction method for the intelligent terminal and the intelligent television has the advantages that transmitting a plurality of data between the intelligent terminal and the intelligent television is not needed; the intelligent terminal and the intelligent television access own data, that is, the intelligent terminal and the intelligent television independently operate; but short synchronous orders are sent when the picture is synchronous; the bandwidth is saved; the speed is high; and the interface synchronicity is strong.

In the invention, the master control board comprises: a control unit of master control board, which is used for sending the management message to PCIe switching unit and receiving the feedback information from the controlled board; a PCIe switching unit used for relaying the management message to the controlled board and relaying the feedback message of the controlled board to the control unit of master control board. Said controlled board comprises: PCIe isolation unit used for receiving the management message from the master control board, relaying it to the controlled board and sending the feedback message to the master control board; and a control unit of the controlled board, which is used for receiving the management message, and sending the feedback message to the PCIe isolation unit. By the invention, the management message can be transmitted through DMA in CPU.

An internet broadcast system is provided that uses a fixed amount of bandwidth, making low fixed demands on broadcast server resources, regardless of the number of recipients. The system can provide content authentication, source authentication, a clear path to the source of intellectual property rights abuse, and reduced security vulnerability of local content, and enables clients receiving streamed content from a server to communicate back to the server using content-sensitive “user experience elements”. The apparatus includes a network management center that receives connection information requests from the plurality of clients, providing connection information to at least one of the plurality of clients; and includes a broadcast center that receives the connection information, and provides the signal. The broadcast center receives a connection request, and also provides the signal only after receiving the connection request, and then uses the connection request with the connection information to provide the signal.

The method comprises: a) constructing a meta-data frame structure whose repeating cycle is 125 microseconds and whose rate is the payload area rate of optical channel payload unit (OPUK); b) dividing out a dynamical transmission mode (DTM) time slots from the meta-data frame structure; according to the signal rate of user, allocating the numbers of DTM time slots; adapting the users' signals to the allocated DTM time slots, and mapping them into relevant time slot position; e) transparently mapping the meta-data frame structure into the OPUK of optical transmission network (OTN).

The invention discloses an accelerating circuit of a 3*3 convolution algorithm, comprising a DDR module, a convolution result FIFO module, a main state machine control module, a shift selection control module, a row buffer module and a convolution calculation module. A main control module performs burst read on pixel data of current two adjacent rows of an input image from a pixel storage array through an AHB bus interface, controls the parallel shift of the pixel data in the shift selection control module so that the pixel data written in the convolution calculation module each time and the corresponding convolution kernel data are subjected to convolution operation, writes an operation result of the pixel data of the current two adjacent rows in the convolution calculation module into aconvolution result storage array through an AHB bus, then, reads the pixel data of the next row through the AHB bus, performs corresponding shift and convolution operations until all pixel data of theinput image are processed, and sends an interrupt to inform the CPU of a result of convolution operation processing so as to reduce the software instruction overhead.

In the invention, a tree structure is established by using a server as root node; each leaf node server of the tree structure is taken as the edge node; each branch node of the tree structure saves the content and releases the content to other subnode. The invention also provides a method for re-directing the user request by means of the content releasing system thereof, and comprises: terminal user sends the content request to its leaf node; if the content requested by the terminal user is saved in the leaf node, then the content is downloaded to the terminal user; otherwise, the terminal user sends the content request to brother node of the leaf node; continuously repeating the steps above until the terminal user downloads the request content or visits the last node server.

The present invention relates to a circuit for charging the bootstrap capacitor of the voltage converter, wherein, the voltage converter comprises a upper bridge transistor and a lower bridge transistor. The bootstrap capacitor is connected between the source of the upper bridge transistor and a driving electric source of the upper bridge driver. The circuit comprises a first transistor for connecting a power supply voltage and a feedback node, and a second transistor for connecting the feedback node and the bootstrap capacitor. The second transistor and the lower bridge transistor of the voltage converter are synchronously conducting and closing, a comparator obtains a feedback voltage from the feedback node and the first transistor is conducting when the feedback voltage is lower than a reference voltage, and the electric power voltage is provided to the second transistor thereby charging the bootstrap capacitor.

The invention discloses a statistical method for the click rate. The method includes building a label when an interface element clicking operation by a user is detected; adding relevant information of interface elements to the label; when a browser loads the label, sending the relevant information of the interface elements to a server; and the server performs statistics on the click rate of the interface elements corresponding to the information according to the relevant information. According to the statistical method, click statistical codes are not needed to embed in each content page, packets such as the jQeury does not aid, the bandwidth is saved, and the cross domain problem is solved.

The invention provides a method and a system for realizing multicast in an Internet protocol version 4 over Internet protocol version 6 (IPv4overIPv6) tunnel. The method comprises the following steps that: a user side gateway encapsulates an Internet group management protocol (IGMP) multicast group addition request into an IPv6 tunnel for transmission, maps an IPv4 multicast group address into an IPv6 multicast group address, generates a multicast listener discovery (MLD) request message and transmits the MLD request message to a network side; the network side updates an IPv4 multicast tree forwarding table and an IPv6 multicast tree forwarding table; after receiving an IPv4 multicast data packet, the network side maps the IPv4 multicast group address into the IPv6 multicast group address, and downstream forwards an IPv6 multicast data packet obtained by the address mapping; a multicast replication point transmits the multicast-replicated IPv6 multicast data packet to a user side; and after receiving the IPv6 multicast data packet, the user side gateway decapsulates the IPv6 multicast data packet according to a multicast address mapping relationship, recovers the IPv4 multicast data packet and transmits the IPv4 multicast data packet to a user terminal.

The invention discloses a cognitive radio based communication network system in an intelligent power grid and a networking method. The system comprises a sensor node, a convergence node and a backbone network, a radio communication module in the sensor node comprises a cognitive selection control module, and a ZigBee radio frequency module with a radio communication function and a 230MHz radio frequency module. The cognitive selection control module periodically detects channel availability of empty frequency ranges in a network, and enters the radio modules corresponding to the selected frequency ranges for communication if the channel availability meets communication requirements, the sensor node senses frequency spectrum emptiness and selects proper frequency ranges to communicate with the convergence node, and the convergence node collects and compresses uploaded data and uploads the data to the backbone network on the basis of power line carrier waves. By combining the 2.4GHz frequency range with the 230MHz frequency range, applying cognitive radio into transmission of the intelligent power grid to sense current frequency spectrum occupancy, and automatically switching among multiple frequency ranges, intelligentized and efficient data transmission is realized.

The invention provides a large-scale distributed monitoring video data processing method and device. The method comprises the following steps of at a video data analysis front end, obtaining monitoring video stream data, carrying out dynamic modeling on the video stream data, extracting a target area in the video stream data, calculating a feature value of the target area, extracting target metadata data information based on the feature value through target feature identification, and generating a video data processing result; and at a video data processing rear end, obtaining data processing result metadata messages and pictures, and carrying out secondary processing on the data processing result metadata messages and pictures. According to the method and the device, through utilization of a high-performance camera device deployed at a front end, the high-definition monitoring video data is analyzed and processed at the front end; compared with the mode of analyzing the high-definition video data at a rear end, the mode has the advantage of reducing network transmission bandwidths and video analysis and computing resources; and the new high-definition video data analysis and transmission solution scheme for large-scale high-definition monitoring video deployment and service application is provided.

The invention provides a method and device for realizing a multi-person session, computer equipment and a storage medium. The method comprises the following steps of creating the multi-person sessionbased on multi-person session requests sent by terminals; receiving audio data acquired by the terminals corresponding to various member identifiers of the multi-person session, wherein the audio datacomprises the member identifiers corresponding to various terminals; for each member identifier of the multi-person session, respectively carrying out audio mixing processing on the audio data of theterminals corresponding to other member identifiers except the member identifier to form a path of mixed audio data, and obtaining mixed audio data corresponding to various member identifiers; and sending the mixed audio data corresponding to various member identifiers to the terminals corresponding to the member identifiers. Therefore, one terminal only needs to receive a path of audio data after audio mixing processing by a server, the audio data of other terminals which are distributed by the server are not required to be received respectively, the data interaction frequency of the terminals and the server is reduced, and the bandwidth and the flow are saved.

The invention discloses a method and system for data transmission among Ir interfaces of double-module base station. The method comprises the steps that IQ modulation data to be transmitted are adjusted to an expected target value by adopting an AGC factor, are compressed according to a compression ratio and then are transmitted. An AGC module in the system is used for adjusting the IO modulation data to be transmitted to the expected target value by adopting the AGC factor. Through the adoption of the method and system for the data transmission among the Ir interfaces of the double-module base station, bandwidth occupied by data transmission between a BBU and an RRU is reduced, optical fiber occupied amount is reduced, and network deployment cost is lowered.

The invention relates to the technical field of computers and provides a method and device for transmitting and receiving data through a mobile terminal. The method comprises the steps of determining the data type of data to be transmitted; encoding the data according to the data type of the data, wherein the encoded data include a data packet header and data contents; taking binary code streams of numerical values representing the integer data as the encoded data contents of the integer data if the data are integer data, and taking data type identifiers of the integer data and memory space sizes of the data contents as a data packet header of the integer data; packaging the encoded data in order of the data packet header and the data contents and transmitting the packaged data.

A method for forwarding multicast packets in a virtual private LAN includes: the VPLS VSI monitors PIM messages received by the interfaces and configures the L2 multicast route according to the messages; then the VPLS VSI forwards multicast packets according to the L2 multicast route configured. With the PIM Snooping function, the VSI may forward multicast packets precisely so that the bandwidth of an MPLS or IP network can be effectively saved and that the multicast replication pressure between PEs in the VPLS network and VC pseudowires in the VSI can be reduced.

Fully-rendered three-dimensional characters are delivered to a client over a network. A logic file and brief pre-rendered video clips are downloaded from a server. The video clips are downloaded only once and then cached locally for subsequent use. A software application uses the logic file to piece the video clips together in a seamless fashion to display a life-like character. The character is responsive to various trigger events, including user actions, elapsed time, and semi-random occurrences as directed by the logic file.

In a message delivery system, messages are carried over a network in packets. Server hosts support applications for originating and receiving messages and network interfaces. Switches interconnect the server hosts and form the packet network. Some of the switches are linked to the local server hosts. Distributed filtering/matching modules associated with the local server hosts register interests for applications on the associated local server hosts, inspect packets received over the network or from a local server host to match messages with registered interests and remove any unmatched packets from the packets. The matched messages are forwarded to the local server host for delivery to the applications. This system offers the ability to use special purpose hardware for the filtering/matching function without requiring connections to a common message broker.

The invention discloses a data simplified duplicate removal and mirror image remote backup protection method and system. The method comprises the steps of firstly segmenting to-be-stored data files into multiple data blocks; secondly performing duplicate checking on the segmented data blocks to delete duplicated data blocks; and thirdly backing up the processed data in a data storage pool, and backing up the storage pool in another mirror image storage pool. Compared with the prior art, the data simplified duplicate removal and mirror image remote backup protection method and system has the advantages that unique data is effectively protected after duplicated data in a production server is deleted; the method and the system are suitable for backup in medium and small-sized enterprises; thestorage space occupied for duplicated data transmission can be effectively reduced; the storage cost is reduced; the practicality is high; the application range is wide; and the popularization is easy.

Embodiments of the present invention provide a method and a system for implementing multicast using a slave block in DSL access technique. Several slave blocks are cascaded with a master block accessed to the DSL. The master block and slave block are respectively connected with DSL users via RTUs, and access an uplink via a network interface of the master block. The slave block is configured to support the IGMP proxy or the IGMP snooping so as to implement multicast function independently. This invention overcomes the shortcomings including the heavy burden on the master block, low efficiency and serious waste in bandwidth resulting from the fact that the operation of the slave block multicast member is implemented in the master block, thus increasing the efficiency of multicast and saving bandwidth of the master block.

The present invention discloses an SSE (server-sent event) specification-based message push method and device. The method comprises the following steps that: an SSE long connection is built between a server and a terminal; whether a message to be pushed exits is monitored in real time; when it is monitored that a message to be pushed exits, the message to be pushed is sent to the terminal. According to the above method, since the SSE specification is a lightweight protocol, the SSE specification is not required to be deployed additionally compared with the Websocket protocol, at the same time, the technology of the SSE specification is relatively simple compared with that of the Websocket protocol, and requirements for developers are low; since the SSE specification supports one-way communication between the server side and the terminal, that is, as long as a new message exists at the server side, the new message can be pushed to the terminal, the terminal does not need to perform polling, and thus, the real-time push of the message can be ensured; and a connection between the server side and the terminal is a long connection, and therefore, bandwidth can be saved.

The invention discloses a video compression method. The method includes: acquiring a video image; carrying out skin color analysis on each frame image in video images to obtain a face image and a background image in each frame image; carrying out Gaussian blurring on the background image to obtain a blurred background image; and carrying out compression on the blurred background image. The invention also discloses a video compression device and a computer-readable storage medium. The method can achieve effects that in a video chat process, clarity of face information in a video process can beguaranteed, and video bandwidth can also be reduced.

The invention provides a scanning type display device control circuit which is suitable for receiving successive frame data and driving a light-emitting diode display device according to the successive frame data. The scanning type display device control circuit comprises a ping-pong storage area, a data storage controller, a row scanning controller, a buffer module and a scattered type pulse width modulation signal generating device. The scanning type display device control circuit can repeatedly and circularly utilize the frame data so as to avoid repeated transmission of mass data. Therefore, the bandwidth required for inputting the data can be greatly reduced. In addition, the scattered type pulse width modulation signal generating device can scatter a pulse width modulation signal with longer cycle into a plurality of scattered type pulse width modulation signal with a shorter cycle, thus refreshing frequency can be effectively improved under the condition of not altering the bandwidth of the input data.