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436 results about "Network cost" patented technology

Audio communications using devices with different capabilities

A multimedia collaboration system that integrates separate real-time and asynchronous networks—the former for real-time audio and video, and the latter for control signals and textual, graphical and other data—in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio / video / data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio / video.
Owner:PRAGMATUS AV

Video service quality-based hybrid selective repeat method

The invention discloses a video service quality-based hybrid selective repeat method, which mainly solves the problems of reduced data transmission quantity, large transmission delay and poor video information continuity caused by unnecessary cost in the prior art. The method is implemented by the following steps of: first, calculating a video subjective quality objectified value by utilizing a video subjective quality objectifying model, and calculating a data transmission redundancy range which cannot cause network congestion by using a network broadband which feeds back from a receiving end to a transmitting end; then, according to the data transmission redundancy range, allocating proportions to forward error correction redundancy and selective repeat redundancy to optimize the video subjective quality objectified value; and finally, selecting a code pattern for coding according to the forward error correction redundancy, and determining the number of packets needing to be repeated according to the selective repeat redundancy. In the method, forward error correction control and selective repeat error control are taken into consideration at the same time, so that the time cost and the network cost are reduced; therefore, the method can be used in a video transmission system.
Owner:XIDIAN UNIV

Non-networking access system based on mobile terminal and implementation method

The invention discloses a non-networking access system based on a mobile terminal. The non-networking access system comprises a cloud-end server device, a non-networking access unit device and the mobile terminal, wherein the mobile terminal acquires access right information of a user and attribute information of an access unit; the non-networking access unit device sends a wireless broadcast message periodically; the mobile terminal detects the wireless broadcast message of the non-networking access unit and establishes wireless communication connection with the non-networking access unit; the mobile terminal sends a door-opening request to the non-networking access unit device by the established wireless communication connection; and the non-networking access unit device verifies the door-opening request of the mobile terminal and executes corresponding access right operation. The non-networking access system disclosed by the invention has the advantages that a user can use the access system only by carrying the mobile terminal without needing to swipe cards or adopting other means such as biological identity identification, and also does not need the networking to the access system, so that the use is faster; and compared with the networking system, a large amount of network cost is saved.
Owner:大连智慧城科技有限公司

Log-in based communications plus two data types

A multimedia collaboration system that integrates separate real-time and asynchronous networks—the former for real-time audio and video, and the latter for control signals and textual, graphical and other data—in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio / video / data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio / video.
Owner:PRAGMATUS AV
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