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    • 7. 发明授权
    • Method for assigning a streaming media session to a server in fixed and mobile streaming media systems
    • 将流媒体会话分配给固定和移动流媒体系统中的服务器的方法
    • US06941378B2
    • 2005-09-06
    • US09898800
    • 2001-07-03
    • John G. ApostolopoulosSujoy BasuGene CheungRajendra KumarSumit RoyWai-tan TanSusie J. WeeTina WongBo Shen
    • John G. ApostolopoulosSujoy BasuGene CheungRajendra KumarSumit RoyWai-tan TanSusie J. WeeTina WongBo Shen
    • H04L12/56H04L29/06H04L29/08H04L29/14G06F15/16G06F15/173
    • H04L65/4084H04L29/06027H04L65/607H04L69/329H04L69/40H04N21/23103H04N21/234327H04N21/234381H04N21/2662H04N21/41407H04W4/00H04W88/08
    • A method for assigning servers to provide multiple description bitstreams to a mobile client (in a mobile client environment) or to a fixed client (in a fixed client environment). In one embodiment, the present invention, upon receiving a request from a mobile client to have media data streamed thereto, analyzes a plurality of servers to determine a first candidate server for providing a first multiple description bitstream to the base station along a first path. The present method also determines a second candidate server for providing a second multiple description bitstream to the base station along a second path. The present method then sends a request to the first candidate server to provide the first multiple description bitstream to a mobile client through a base station along the first path, and also sends a request to the second candidate server to provide the second multiple description bitstream to the mobile client through the same base station along a second path. In another embodiment, there are two separate paths from two separate servers to two separate base stations and then from each base station there is a separate path to the mobile client. In still another embodiment, there are two paths from a single server to two separate base stations and then from each base station there is a separate path to the mobile client. In one fixed client embodiment, the present invention is able to assign a plurality of servers to provide a plurality of MD bitstreams to the fixed client.
    • 一种用于分配服务器以向移动客户端(在移动客户端环境中)或固定客户端(在固定客户端环境中)提供多个描述比特流的方法。 在一个实施例中,本发明在从移动客户端接收到流媒体数据流的请求时分析多个服务器以确定第一候选服务器,用于沿着第一路径向基站提供第一多个描述比特流。 本方法还确定用于沿着第二路径向基站提供第二多描述比特流的第二候选服务器。 本方法然后向第一候选服务器发送请求,以通过沿着第一路径的基站向移动客户端提供第一多个描述比特流,并且还向第二候选服务器发送请求以将第二多个描述比特流提供给 移动客户端通过相同的基站沿着第二条路径。 在另一个实施例中,存在从两个分离的服务器到两个单独的基站的两个单独的路径,然后从每个基站到达移动客户端的单独的路径。 在另一个实施例中,存在从单个服务器到两个单独基站的两条路径,然后从每个基站到达移动客户端的单独路径。 在一个固定客户端实施例中,本发明能够分配多个服务器以向固定客户端提供多个MD比特流。
    • 10. 发明授权
    • Reducing the resolution of media data
    • 减少媒体数据的分辨率
    • US07596179B2
    • 2009-09-29
    • US10085684
    • 2002-02-27
    • Bo ShenSumit Roy
    • Bo ShenSumit Roy
    • H04N7/12G06K9/46
    • G06T3/4084H04N19/107H04N19/40H04N19/48H04N19/59H04N19/61
    • A method and system for reducing the resolution of media data. Input data at a first resolution are received from a source. The input data are compressed. The input data can be downsampled to generate compressed downsampled data at a reduced resolution. The compressed downsampled data can be used to generate a frame at the reduced resolution. When the frame is needed as a reference for another frame, the compressed downsampled data can be decoded to generate decompressed downsampled data at the reduced resolution. The decompressed downsampled data can be upsampled to generate decompressed data at a resolution corresponding to the first resolution. Thus, a larger amount of data can be processed while the data are compressed. As such, data processing operations such as transcoding can be accomplished quickly and effectively while saving computing resources.
    • 一种降低媒体数据分辨率的方法和系统。 从源接收第一分辨率的输入数据。 输入数据被压缩。 可以对输入数据进行下采样,以降低分辨率产生压缩的采样数据。 压缩的下采样数据可以用于以降低的分辨率生成帧。 当需要帧作为另一帧的参考时,可以对压缩的下采样数据进行解码,以降低分辨率产生解压缩的下采样数据。 可以对解压缩的下采样数据进行上采样,以对应于第一分辨率的分辨率生成解压缩数据。 因此,在数据被压缩时可以处理更大量的数据。 因此,可以在节省计算资源的同时快速有效地实现诸如转码的数据处理操作。