公开(公告)号：US06683858B1

公开(公告)日：2004-01-27

申请号：US09604961

申请日：2000-06-28

Applicant: Frank J. Chu ,  Virgil Patrick Dobjanschi ,  Corey Gates ,  Katherine W. Kwan ,  Daniel W. Wright

Inventor： Frank J. Chu ,  Virgil Patrick Dobjanschi ,  Corey Gates ,  Katherine W. Kwan ,  Daniel W. Wright

IPC: H04L1216

CPC classification number: H04L12/6418

Abstract: A system, method and computer program product which allows both mixing (e.g., PC-based) and non-mixing (e.g., phone-based) clients to participate in a single audio conference. The system includes a hybrid multi-point control unit (i.e., conferencing server) that performs mixing for phone-based clients and multiplexing for PC-based clients. The method and computer program product determines which clients have the capability to mix multiple audio streams and which do not. For those clients capable of mixing, the server multiplexes the packets of audio data received from each client on the active speakers list into a multiplexed stream. For those clients that are not capable of mixing, the server mixes the packets of audio data received from each client on the active speakers list into one combined packet.

Abstract translation: 允许混合（例如基于PC）和非混合（例如，基于电话的）客户端参与单个音频会议的系统，方法和计算机程序产品。 该系统包括混合多点控制单元（即，会议服务器），其为基于电话的客户端进行混合，并为基于PC的客户端进行复用。 该方法和计算机程序产品确定哪些客户端具有混合多个音频流的能力，哪些不具有。 对于能够混合的那些客户端，服务器将从活动扬声器列表上的每个客户端接收的音频数据的分组复用成多路复用的流。 对于那些不能混合的客户端，服务器将从活动扬声器列表中的每个客户端接收到的音频数据的数据包混合成一个组合数据包。