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49 条记录 (耗时 0.054 秒)

    Processing an MPEG elementary stream in a conditional access overlay environment
    32.
    发明授权
    Processing an MPEG elementary stream in a conditional access overlay environment 有权
    在条件访问覆盖环境中处理MPEG基本流

    公开(公告)号：US07555123B2

    公开(公告)日：2009-06-30

    申请号：US10908169

    申请日：2005-04-29

    申请人： Howard G. Pinder ,  Jeffrey C. Hopper

    发明人： Howard G. Pinder ,  Jeffrey C. Hopper

    IPC分类号： H04N7/167 ,  H04L9/00

    CPC分类号： H04N21/43856 ,  H04N21/23897

    摘要： Processing an MPEG elementary stream contained in multiple PID streams in a conditional access overlay environment. A multi-program transport stream contains numerous video and audio elementary streams. Critical packets in the elementary streams are encrypted with two different encryption schemes creating a stream having multiple PID values. The streams are then sent from the headend to individual set-top boxes. One encryption scheme can be decoded by the incumbent set-top box and the second encryption scheme can be decoded by the overlay set-top box. The overlay set-top box uses a dual filter system to filter and decode the PIDs for each video and audio stream of the desired program.

    摘要翻译： 在条件访问覆盖环境中处理包含在多个PID流中的MPEG基本流。 多程序传输流包含许多视频和音频基本流。 基本流中的关键数据包使用两种不同的加密方案进行加密，创建具有多个PID值的数据流。 然后将流从头端发送到各个机顶盒。 一个加密方案可以由现有机顶盒解码，第二加密方案可以由覆盖机顶盒解码。 覆盖机顶盒使用双重滤波器系统对所需节目的每个视频和音频流过滤和解码PID。

    Subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate
    40.
    发明授权
    Subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate 有权
    用户网络接收数字分组并以预定的最大比特率传输数字分组

    公开(公告)号：US08526613B2

    公开(公告)日：2013-09-03

    申请号：US11407653

    申请日：2006-04-20

    申请人： Howard G. Pinder

    发明人： Howard G. Pinder

    IPC分类号： H04L29/06

    CPC分类号： H04B1/66 ,  H04N7/17354 ,  H04N21/2221 ,  H04N21/23608 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/23895 ,  H04N21/2405 ,  H04N21/4347 ,  H04N21/4622

    摘要： Methods of providing a transport streams are disclosed. In one embodiment, among others, a method comprises receiving an input transport stream having a plurality of packet identifier (PID) streams included therein, the plurality of PID streams comprising first, second, third, and fourth PID streams, decrypting the first PID stream, statistically multiplexing the second PID stream, encrypting the third PID stream, and transmitting the fourth PID stream, wherein the receiving, decrypting, statistically multiplexing, encrypting, and transmitting are implemented at a transport stream apparatus.

    摘要翻译： 公开了提供传输流的方法。 在一个实施例中，其中包括接收包括其中包含多个分组标识符（PID）流的输入传输流，所述多个PID流包括第一，第二，第三和第四PID流，解密第一PID流 统计复用第二PID流，加密第三PID流和发送第四PID流，其中在传输流设备处实现接收，解密，统计复用，加密和发送。