1626results about How to "Reduce transfer time" patented technology

Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.

A Method and apparatus for dynamically discovering and utilizing unused resources for practical and efficient creation of optimized network mechanisms for data distribution. Proposed techniques for data distribution, assembly, routing and scheduling in broadband networks can be implemented as content-level server platform architecture enabled by application-level control plane. Such a platform accelerates content transfer, mirroring and replication. It applies coordinated data partitioning and resource discovery and sharing of information replication by multiple network systems. Furthermore, it harvests the unutilized bandwidth in the network by disassembling the large content to be distributed into different components. These components are then routed in spatially and temporally diverse routes through multiple paths and trees and assembled at the destination nodes. The result is accelerated content distribution, added security, scalability and robustness. No modifications of existing network communication protocols is required.

A flat file data organization technique is used for storing and retrieving geospatially organized data. The invention reduces transfer time by transferring a few large files in lieu of a large number of small files. It also moves the process of locating a given data file away from the file system to a proprietary code base. Additionally, the invention simplifies database management by having quadtree packets generated on demand.

The invention provides a dynamic flow dispatch method and system based on a software definition network. The method comprises a step of carrying out deep analysis of flow through flow information uploaded by a switch, and classifying flow types by a flow identification and grading module according to priorities, a step of calling a statistic management module to obtain information of switch ports, calculating joint links of the switch, and sending information of the joint links to a topology management module, a step of calling the topology management module to obtain a feasible path for flow direction and calculating real-time sate statistic information of the feasible path, and a step of analyzing features of the joint links to calculate weight of the joint links in the overall selection, working out the optimal dispatch strategy based on the weight and giving out the optimal dispatch strategy. The invention can achieve the optimal real-time dispatch of network flow, so that flow is enabled to reach a destination in a fastest manner, and purposes of improving the bandwidth utilization rate and optimizing network performances are finally realized.

A system and method are disclosed for improving the remote display of graphics images by the redirection of rendering and the optional use of image data compression. Instead of sending graphics commands over a network and rendering on a remote computer system, graphics commands may be automatically redirected by modified OpenGL functions to local graphics devices without explicit involvement by the graphics application. The modifications to a set of the OpenGL functions on the local system are transparent in the normal mode of rendering and displaying locally. After an image is rendered locally, it may be read back and sent across the network. A standard X Server on the remote system may be sufficient to support this methodology. An X Extension for data decompression on the remote system, however, may allow for more efficient image transmission through the use of image data compression.

The invention discloses an intra-cell device to device direct communication method based on user device relay. According to the method, when a first device and a second device in the same cell need to be communicated with each other, if a ProSe server finds the distance between the two devices is too far to meet the distance requirement of device to device communication, the ProSe sends a request message for searching for an available relay device to an eNB (evolved node base) ; after receiving the request message, the eNB searches and feeds a result back to the ProSe server; the ProSe server selects a proper relay device by using the feedback result, and sends a beacon resource request to the eNB; the eNB respectively allocates beacon resources for the first device and the relay device as well as the second device and the relay device, and the relay device and the second device notify the eNB of a communication quality detection result; device to device communication scheduling is performed; after finishing service transmission, the communication devices release the device to device resources. According to the method, the communication is performed in a device to device relay mode, sending power is reduced, user device energy is saved, and the system performance is improved.

The application discloses a method and a device for obtaining a network resource for loading a web page, and meanwhile, also discloses other two methods and devices for obtaining the network resource for loading the web page, and a method and a device for caching the network resource, wherein a first method for obtaining the network resource for loading the web page comprises the following steps: according to URL (Uniform Resource Locator) information contained in a network resource obtaining request from a browser, judging whether the request meets the following conditions or not: the request is an obstructive request of generating obstruction to the rendering of the page, but the network resource needed to be obtained according to the request does not influence the rendering of the page; if the request meets the conditions, carrying out the following operation: returning an asynchronous processing response to the browser, so that the browser continuously carries out the rendering of the page; obtaining the network resource from a server side. By adopting the technical scheme provided by the application, the loading speed of the web page can be quickened; the user experience is effectively improved.

The invention discloses a file transferring method with self-adaptive control of transmission speed and a system thereof; UDP protocol is adopted to transfer file data, other commands are carried outby TCP protocol; the file data takes 'block' as a basic unit for each transferring and verifying the completeness, and transmission speed is adjusted by adopting a way of dynamically adjusting the size fine grit of a transmission 'block'; the file is divided into 1-N file fragments by a server, and each file fragment is transmitted by a UDP send data; the server transmits according to the size ofthe presetting block, a client side verifies the result weather to be retransmitted by requesting the server according to the completeness of the received block, if the sever receives the retransmitting request from the client side, the size of the block can be dynamically adjusted. In addition, the transmission speed is adjusted by dynamically adjusting the number of transmission threads. In theinvention, less network expense is increased, and network resource accessed by the client side can be effectively utilized, and the transferring time of the whole file is reduced.

A mobile terminal having a packet communication function according to a mobile IP and a communication route optimizing function includes a session controller for setting a session between terminals in accordance with a session control message of a protocol different from the mobile IP. When a session control message from the other party is received in a visited mobile IP network, the session controller executes optimization of a communication route to the other party by the communication route optimizing function before transmitting a response for the received message.

An interactive television system includes a partial font generator (38) which generates a character font file of only those fonts used by a given application program for text display. The partial font file contains the language character fonts utilized by the application program, but less than the complete character set of the language. Thus, the partial font file thus requires less time or bandwidth to transmit in the allotted transmit intervals. The partial font file may be generated by a manual process, or by an automated analysis of the fonts used by an application program.

The invention relates to a method for broadcasting beacon frames in a short-range wireless ad-hoc network including a plurality of wireless terminals. In order to improve the efficiency of the ad-hoc network in terms of power consumption, the terminal that defines the beacon interval for the network starts as a beacon broadcaster and introduces an identifier list in at least some of the beacon frames broadcast in the network. The identifier list, which includes identifiers of the wireless terminals belonging to the network, is utilized if another wireless terminal is to be selected as the beacon broadcaster.

The invention provides a file downloading and uploading method and device, which aims at solving the problems of the prior art that the file transmission time is long and file transmission wastes network resources. The downloading method comprises the steps of: sending a file request to a server, wherein the file request includes a name of the file requesting downloading; receiving file description information sent by the server, wherein the file description information includes the characteristic values of file blocks formed by dividing the file requesting downloading; detecting whether the characteristic values of the file blocks stored locally are consistent with those of the received file blocks, and adding the inconsistent characteristic values into detection information to return to the server; and receiving the file blocks corresponding to the inconsistent characteristic values, sent by the server. According to the file downloading and uploading method and device provided by the invention, the file blocks corresponding to inconsistent characteristic values stored locally can only be downloaded, thus, the file transmission time is shortened and resource waste is reduced.

The invention relates to a multi-path transmission control terminal and a method for supporting multi-service data transmission, and belongs to the technical field of network communication. The terminal is arranged on an end point of data transmission and comprises a multi-path session management module, a path management module, a flow division module, a path selection module, a substream sending control module, a substream receiving control module, a rectification recombination module, a path transmission quality report module and a path evaluation module. When data stream of an upper application is received, the data stream is divided into stream blocks, a path is selected for each stream block, stream blocks dispatched to the same path form a substream, the stream blocks are further divided into transmission units and are packaged into multi-path transmission packages and are transmitted to an opposite terminal, according to the path transmission quality fed by the opposite terminal, a path selection strategy is dynamically adjusted; when the multi-path transmission data packages are received, substream data is recombined and is further recombined into data streams and the data streams are transmitted to the upper application. The terminal and method can meet different transmission requests of various business types, and the multi-path transmission efficiency is improved.

A wind farm includes a plurality of wind energy installations which generate electrical energy to be output to a power supply system and a wind farm master for controlling the wind energy installations. Each wind energy installation includes a generator which is driven by a rotor, and the wind farm master includes a power control device having a plurality of loops. This plurality of loops includes a fast loop that includes a controller which acts on a first group of the wind energy installations and a slow loop that includes a controller which acts on a second group of the wind energy installations, the fast controller having a substantially higher dynamic than the slow controller.

The invention discloses an image retrieval method and apparatus, an image information acquisition method and apparatus, an image identification method and apparatus, an image identification system, a method and apparatus used for calculating an image feature value, and an electronic device. The image retrieval method comprises the steps of extracting a local feature of a to-be-retrieved image; calculating a feature value of the local feature by adopting a pre-trained depth autoencoder network model; performing matching on the feature value and feature values of registered images in an image retrieval database; and selecting a registered image, which meets a preset condition, as a retrieval result of the to-be-retrieved image according to a matching result. By adopting the method, a depth autoencoder network can effectively keep distance information and a distinguishing capability between the feature values in a process of performing compressed representation on the local feature, so that the image retrieval precision can be effectively improved, the workload of rearrangement and filtration can be reduced, and the retrieval efficiency can be enhanced.

The invention discloses a transmission time interval (TTI) configuration method supporting high speed mobile transmission. The method comprises the following steps: setting at least one type of the TTI, wherein, the length of each type of the TTI is an integral multiple of that of a subframe; selecting a TTI corresponding to a mobile station from the set TTI, determining the amount of pilot frequency symbols in the TTI to get the TTI information of the mobile station, and then sending the TTI information to the mobile station. The invention further discloses a TTI configuration device supporting the high speed mobile transmission and a system thereof. The scheme of the invention can effectively ensure the reliability of information transmission in the case that the mobile station moves at a high speed.

The invention discloses a file sharing method based on cloud storage. A first user sets a sharing folder and share users in an on-line folder of a cloud storage server, and synchronizes the sharing folder into an online folder of a second user and a local folder, and the second user then synchronizes the sharing folder of the online folder into a sharing folder of the local folder. If the sharing folders are local area network sharing folders, files in the local area network sharing folder of the local folder of the first user is synchronized into the local area network sharing folder of the local folder of the second user through a local area network. Therefore, online file sharing based on cloud storage is realized. The file sharing method based on cloud storage is capable of realizing sharing of share files conveniently, so that exit bandwidth of the local area network is saved effectively, and sharing speed is increased.

In a method for introducing loading auxiliary structures with a transport device into a shelf compartment with storage spaces arranged one behind the other, a loading auxiliary structure is conveyed by the transport device into the shelf compartment to the front storage space in the direction of introduction, after which a further loading structure is moved by the transport device into the shelf compartment to the front storage space and in this way the preceding loading auxiliary structure is moved to the storage space that is behind and the additional loading auxiliary structure is moved into the front storage space. The transport device includes a removing unit with a stop device adjustable at its front end in the introduction direction into the movement path of the loading auxiliary structure and a drive member on a side facing the loading auxiliary structure.

The invention relates to digital cash, such as Bitcoin wallet software, in particular to a dynamic compression and access method of a block chain. The dynamic compression and access method comprises the following steps: operating a digital cash wallet program; when new block data is written into the block chain in an operation process of the digital cash wallet program, dynamically compressing the block data; creating identification information on the compressed block data; and then, when the digital cash wallet program is operated, storing the compressed block which creates the identification information into a block chain database. In the operation process of the digital cash wallet program, the block is dynamically decompressed through an embedded compression function, meanwhile, the compressed block is decompressed through the embedded decompression function, the volume of the whole block chain data becomes small under a premise that data is not damaged, and a storage space is greatly saved; and in addition, the transmission speed of the block chain data is improved, and transmission time is shortened.

An airconditioner system for integrating multiple areas. A plurality of multi-airconditioners are grouped into some groups. CPU connected in parallel to individual multi-airconditioner groups, that have been distributed and installed in a wide area or building, controls individual multi-airconditioner groups to be operated simultaneously, resulting in a shorter control time. Although an unexpected communication failure occurs in one multi-airconditioner group, the remaining multi-airconditioner groups other than the erroneous multi-airconditioner group can be normally controlled, resulting in increased stability and reliability of an overall airconditioning system.