公开(公告)号：US20140126653A1

公开(公告)日：2014-05-08

申请号：US14155081

申请日：2014-01-14

Applicant: Cisco Technology, Inc.

Inventor： Ali C. Begen ,  Tankut Akgul ,  Michael A. Ramalho ,  David R. Oran ,  William C. Ver Steeg

IPC: H04N5/04

CPC classification number: H04N5/04 ,  G06F15/16 ,  H04N5/931 ,  H04N5/932 ,  H04N7/087 ,  H04N21/47202

Abstract: In one method embodiment, providing a multiplex of compressed versions of a first video stream and a first audio stream, each corresponding to an audiovisual (A/V) program, the first video stream and the first audio stream each corresponding to a first playout rate and un-synchronized with each other for an initial playout portion; and providing a compressed version of a second audio stream, the second audio stream corresponding to a pitch-preserving, second playout rate different than the first playout rate, the second audio stream synchronized to the initial playout portion of the first video stream when the first video stream is played out at the second playout rate, the first audio stream replaceable by the second audio stream for the initial playout portion.

Abstract translation: 在一个方法实施例中，提供第一视频流和第一音频流的压缩版本的多路复用，每个对应于视听（A / V）程序，第一视频流和第一音频流，每个对应于第一播放速率 并且对于初始播放部分彼此不同步; 以及提供第二音频流的压缩版本，所述第二音频流对应于与所述第一播放速率不同的音高保持的第二播放速率，所述第二音频流与所述第一视频流的初始播出部分同步，当所述第一音频流 视频流以第二播放速率播放，第一音频流可由用于初始播出部分的第二音频流替换。

公开(公告)号：US20140086243A1

公开(公告)日：2014-03-27

申请号：US13624850

申请日：2012-09-21

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Gregory Shepherd ,  Ali C. Begen

IPC: H04L12/56

CPC classification number: H04L45/16 ,  H04L12/1886

Abstract: In one embodiment, a method includes transmitting media from a source to a plurality of receivers in a first source-specific multicast (SSM) channel and transmitting from the source to said plurality of receivers, a channel change message in an in-band transport control protocol message identifying a second SSM channel, wherein the receivers are configured to join said second SSM channel in response to said channel change message.

Abstract translation: 在一个实施例中，一种方法包括将媒体从源传送到第一特定源多播（SSM）信道中的多个接收机，并从源向所述多个接收机发送带内传输控制中的信道改变消息 识别第二SSM信道的协议消息，其中所述接收机被配置为响应于所述信道改变消息加入所述第二SSM信道。