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    • 32. 发明申请
    • Method and system for transporting data over network
    • 通过网络传输数据的方法和系统
    • US20080151881A1
    • 2008-06-26
    • US11041079
    • 2005-01-21
    • Hain-Ching LiuJi ZhangJiangang Ding
    • Hain-Ching LiuJi ZhangJiangang Ding
    • H04L12/56
    • H04N21/6375H04L1/0002H04L1/0015H04L1/1621H04L1/1829H04L1/22H04L69/40H04L2001/0097H04N21/64322
    • A data transport system for transporting data between a server (21) and a client receiver (27) over a network (23) includes a receiving proxy cache (25) coupled to a client receiver (27) via a reliable connection (29), such as a cable connection. The majority of data is transported from the server (21) to the receiving proxy cache (25) over an efficient data transmission channel (41). The receiving proxy cache (25) verifies the status of the data transmitted over the efficient channel (41). If there is an error in the data transmission, a portion of the data associated with the error is retransmitted from the server (21) to the receiving proxy cache (25) over a reliable data transmission channel (43). The complete data at the receiving proxy cache (25) is delivered to a client receiver (27) over a reliable connection (29).
    • 一种用于通过网络(23)在服务器(21)和客户端接收器(27)之间传送数据的数据传输系统包括经由可靠连接(29)耦合到客户端接收器(27)的接收代理缓存(25) 如电缆连接。 大部分数据通过有效数据传输通道(41)从服务器(21)传送到接收代理缓存(25)。 接收代理缓存(25)验证通过有效信道(41)发送的数据的状态。 如果数据传输中存在错误,则通过可靠数据传输通道(43)将与该错误相关联的数据的一部分从服务器(21)重新发送到接收代理缓存(25)。 接收代理缓存(25)上的完整数据通过可靠连接(29)传送到客户接收器(27)。
    • 39. 发明授权
    • System and method for transcoding multiple channels of compressed video streams using a self-contained data unit
    • 使用自包含数据单元对压缩视频流的多个通道进行代码转换的系统和方法
    • US06483543B1
    • 2002-11-19
    • US09244326
    • 1999-02-03
    • Ji ZhangScott StovallFang WuYitong Tse
    • Ji ZhangScott StovallFang WuYitong Tse
    • H04N718
    • H04N21/23608H04N19/40H04N21/234309H04N21/2365H04N21/23655H04N21/4347
    • A system for transcoding multiple channels of compressed video streams using a self contained data unit such as an autonomous frame includes an autonomous frame processing unit having an autonomous frame generator and an autonomous frame recoder. The autonomous frame generator receives video data and divides it into a series of autonomous frames. Each autonomous frame preferably comprises 1) a frame header including all header information from the original video data plus enough additional information to allow the frame to be recoded using pre-defined autonomous frame structure, and 2) a frame payload including the original video data information. The autonomous frame recoder process the autonomous frames including extracting processing parameters, extracting the video data and setting up or initializing the recoder to process the extracted video data. The autonomous frame recoder preferably further comprises a parser coupled to an initialization unit and a recoder. The present invention also includes a method for processing video data including the steps of: receiving a video bitstream, storing recoding information, dividing the video bitstream into a plurality of autonomous frames each frame including a portion of the video bitstream and recoding information, outputting the plurality of autonomous frames, receiving the plurality of autonomous frames, extracting processing information from the autonomous frame, extracting video data from the autonomous frame, setting the recoding according to the processing information and recoding the extracted video data.
    • 使用诸如自主帧的自包含数据单元对多个压缩视频流的多个信道进行代码转换的系统包括具有自主帧生成器和自主帧记录器的自主帧处理单元。 自主帧生成器接收视频数据并将其分成一系列自主帧。 每个自主帧优选地包括1)包括来自原始视频数据的所有报头信息的帧报头加上足够的附加信息以允许使用预定义的自主帧结构来重新编码帧,以及2)包括原始视频数据信息的帧有效载荷 。 自主帧重新编码器处理自动帧,包括提取处理参数,提取视频数据,设置或初始化编码器以处理所提取的视频数据。 自主帧记录器优选地还包括耦合到初始化单元和记录器的解析器。 本发明还包括一种处理视频数据的方法,包括以下步骤:接收视频比特流,存储重新编码信息,将视频比特流分成多个自主帧,每个帧包括视频比特流的一部分和重新编码信息,输出 多个自主帧,接收多个自主帧,从自主帧提取处理信息,从自主帧中提取视频数据,根据处理信息设置重新编码,并重新编码提取的视频数据。