公开(公告)号：US20150023169A1

公开(公告)日：2015-01-22

申请号：US13946086

申请日：2013-07-19

Applicant: Cisco Technology, Inc.

Inventor： Duanpei Wu ,  Shih-Cheng Yang ,  Wenyi Wang ,  Anand Oswal

IPC: H04L12/863 ,  H04N7/15

CPC classification number: H04L47/6215 ,  H04L47/2416 ,  H04L65/403 ,  H04L65/605 ,  H04L65/608 ,  H04N7/152

Abstract: Techniques are provided for managing network traffic and alleviating network congestion issues in video conference environments. At a video conference bridge device configured to send and receive communications to an endpoint device in a network, one or more video streams are received from the endpoint participating in a video conference. Each of the video streams is classified as a rate adaptive stream or as a non-rate adaptive stream. For video streams classified as rate adaptive streams, the video streams are assigned to a buffer queue for rate adaptive streams. For video streams classified as non-rate adaptive streams, the video streams are assigned to a buffer queue for non-rate adaptive streams.

Abstract translation: 提供技术来管理网络流量并减轻视频会议环境中的网络拥塞问题。 在被配置为向网络中的端点设备发送和接收通信的视频会议桥接设备中，从参与视频会议的端点接收一个或多个视频流。 每个视频流被分类为速率自适应流或者作为非速率自适应流。 对于分类为速率自适应流的视频流，视频流被分配给用于速率自适应流的缓冲器队列。 对于分类为非速率自适应流的视频流，将视频流分配给用于非速率自适应流的缓冲队列。

公开(公告)号：US20130226567A1

公开(公告)日：2013-08-29

申请号：US13717069

申请日：2012-12-17

Applicant: Cisco Technology, Inc.

Inventor： Duanpei Wu ,  Luke K. Surazski

IPC: G10L25/90

CPC classification number: G10L25/90 ,  G10L19/005 ,  G10L21/047

Abstract: In one embodiment, a method can include: (i) establishing an internet protocol (IP) connection; (ii) forming a buffered version of a plurality of voice frame slices from received audio packets; and (iii) when an erasure is detected, performing a packet loss concealment (PLC) to provide a synthesized speech signal for the erasure, where the PLC can include: (a) identifying first and second pitches from the buffered version of the plurality of voice frame slices; and (b) forming the synthesized speech signal by using the first and second pitches, and more if needed, followed by an overlay-add (OLA).

Abstract translation: 在一个实施例中，一种方法可以包括：（i）建立因特网协议（IP）连接; （ii）从接收到的音频分组形成多个语音帧片段的缓冲版本; 和（iii）当检测到擦除时，执行分组丢失隐藏（PLC）以提供用于擦除的合成语音信号，其中PLC可以包括：（a）从缓冲版本中识别第一和第二间距 语音片段; 和（b）通过使用第一和第二音调形成合成的语音信号，如果需要，则更多，然后是叠加（OLA）。