Method for forming transport cells for conveying compressed video data
    4.
    发明授权
    Method for forming transport cells for conveying compressed video data 失效
    用于形成用于传送压缩视频数据的传送单元的方法

    公开(公告)号:US5483287A

    公开(公告)日:1996-01-09

    申请号:US285361

    申请日:1994-08-03

    摘要: A digital compressed video signal transmission system includes a transport processor for segmenting compressed MPEG video data into transport cells for transmission. A plurality of data fields in each transport cell are utilized to uniquely define transmitted data, provide system synchronization and to provide for detection of lost or corrupted data. These data fields include fields which indicate the service to which the data relates, the state of signal scrambling, a field identifying the one of several alternative formats in which the cell payload is arranged, a continuity count for determining data continuity, and a payload of either compressed video data or data auxiliary to the compressed video data.

    摘要翻译: 数字压缩视频信号传输系统包括用于将压缩的MPEG视频数据分割成用于传输的传输单元的传输处理器。 每个传输小区中的多个数据字段被用于唯一定义发送的数据,提供系统同步并提供对丢失或损坏的数据的检测。 这些数据字段包括指示数据所关联的服务的字段,信号加扰的状态,标识其中安排小区有效载荷的若干备选格式之一的字段,用于确定数据连续性的连续性计数和用于确定数据连续性的有效载荷 压缩视频数据或辅助压缩视频数据的数据。

    Method for formatting compressed video data into transport cells
    7.
    发明授权
    Method for formatting compressed video data into transport cells 失效
    将压缩视频数据格式化为传输单元的方法

    公开(公告)号:US5365272A

    公开(公告)日:1994-11-15

    申请号:US085364

    申请日:1993-07-02

    摘要: A digital compressed video signal transmission system includes a transport processor for segmenting compressed MPEG video data into transport cells for transmission. Several protocol levels are utilized to uniquely define transmitted data, provide system synchronization and to provide for detection of lost or corrupted data. Transport cells are formed of three levels, the first of which indicates the service to which the data relates and includes a field indicating the state of signal scrambling. The second level includes a field identifying the one of several alternative formats in which the cell payload is arranged, and a continuity count for determining data continuity. The third level includes the payload and a field which indicates decodable entry points for re-entering the data stream after having lost data.

    摘要翻译: 数字压缩视频信号传输系统包括用于将压缩的MPEG视频数据分割成用于传输的传输单元的传输处理器。 利用几个协议级别来唯一定义传输的数据,提供系统同步并提供对丢失或损坏的数据的检测。 传输信元由三个级组成,其中第一级指示数据所关联的业务,并包括指示信号加扰状态的字段。 第二级包括标识其中布置单元有效载荷的若干备选格式之一的字段以及用于确定数据连续性的连续性计数。 第三级包括有效载荷和指示在丢失数据之后重新输入数据流的可解码入口点的字段。