Video information stream distribution unit
    1.
    发明申请
    Video information stream distribution unit 审中-公开
    视频信息流分发单元

    公开(公告)号:US20050094648A1

    公开(公告)日:2005-05-05

    申请号:US10504753

    申请日:2003-01-21

    CPC分类号: H04N21/4383 H04N21/434

    摘要: A video information stream distribution unit distributes streams such as MPEG streams that contain packets making up sub-streams. Each packet having an identification code that identifies the sub-stream to which the packet belongs. The stream also contains table information that relates programs to said identification codes. The distribution unit generates a new stream from a received stream. In the new stream selected packets from the received stream are copied that have identification codes related to a selected program. In the new stream the table information for the selected program is included with an increased repetition rate in comparison with an incoming repetition rate of the table information in the received stream, at least temporarily during an initial time interval following a change of selection of the selected program. Thus, latency involved with access to the new stream is reduced.

    摘要翻译: 视频信息流分发单元分发包含组成子流的分组的诸如MPEG流的流。 每个分组具有识别分组所属的子流的识别码。 流还包含将程序与所述识别码相关联的表信息。 分配单元从接收的流生成新的流。 在新流中,复制来自接收流的所选分组,其具有与所选程序相关的识别码。 在新流中,与所接收的流中的表信息的输入重复率相比,至少临时地在所选择的节目的选择的改变之后的初始时间间隔期间,增加所选节目的表信息,增加的重复率 程序。 因此,减少了对新流的访问所涉及的延迟。

    Method and arrangement for converting a first data stream into a second data stream
    2.
    发明申请
    Method and arrangement for converting a first data stream into a second data stream 审中-公开
    将第一数据流转换成第二数据流的方法和装置

    公开(公告)号:US20050083861A1

    公开(公告)日:2005-04-21

    申请号:US10506282

    申请日:2003-02-07

    摘要: Method and system for converting a first data stream (10) received from a network (12) into a second data stream (16) for delivery to an end terminal (18). The first data stream (10) has a first data rate, and comprises at least one data packet stream of a predetermined type. The system comprises a re-multiplexer (25) which is arranged for recovering the at least one data packet stream of the predetermined type from the first data stream (10). The re-multiplexer (25) is further arranged for re-multiplexing the at least one data packet stream using a predetermined bit rate to provide the second data stream (16) with a fixed bandwidth.

    摘要翻译: 用于将从网络(12)接收的第一数据流(10)转换成第二数据流(16)以传送到终端(18)的方法和系统。 第一数据流(10)具有第一数据速率,并且包括预定类型的至少一个数据分组流。 该系统包括重新复用器(25),其被重新设置用于从第一数据流(10)恢复预定类型的至少一个数据分组流。 再复用器(25)还被布置用于使用预定比特率重新复用至少一个数据分组流,以向固定带宽提供第二数据流(16)。