公开(公告)号：US06452974B1

公开(公告)日：2002-09-17

申请号：US09705464

申请日：2000-11-02

申请人： Rama R. Menon ,  Sheng-Hui Chu ,  Yueheng Xu

发明人： Rama R. Menon ,  Sheng-Hui Chu ,  Yueheng Xu

IPC分类号： H04B504

CPC分类号： H04N5/93 ,  H04N5/04 ,  H04N5/91 ,  H04N7/147 ,  H04N7/152

摘要： A method and apparatus for synchronizing audio and video streams in a video conferencing system is provided. During a video conferencing session, audio and video streams are transmitted from one processing system to a remote processing system, where they are recorded. Because the video stream has a variable frame rate during transmission, extra frames are inserted into the recorded video stream in order to maintain a constant, predetermined frame rate. During playback, synchronization information from the audio stream is provided by an audio playback process to a video playback process in order to synchronize the start of playing the audio and video streams, as well as to repeatedly synchronize the audio and video streams during playback.

摘要翻译： 提供了一种在视频会议系统中同步音频和视频流的方法和装置。 在视频会议会话期间，音频和视频流从一个处理系统传输到远程处理系统，在那里它们被记录。 因为视频流在传输期间具有可变的帧速率，所以额外的帧被插入到记录的视频流中，以便保持恒定的预定帧速率。 在播放期间，来自音频流的同步信息通过音频播放处理提供给视频播放处理，以便同步播放音频和视频流的开始，以及在播放期间重复同步音频和视频流。

公开(公告)号：US06269122B1

公开(公告)日：2001-07-31

申请号：US09002543

申请日：1998-01-02

申请人： Rama R. Prasad ,  Sheng-Hui Chu ,  Yueheng Xu

发明人： Rama R. Prasad ,  Sheng-Hui Chu ,  Yueheng Xu

IPC分类号： H04N504

CPC分类号： H04N5/93 ,  H04N5/04 ,  H04N5/91 ,  H04N7/147 ,  H04N7/152

摘要： A method and apparatus for synchronizing audio and video streams in a video conferencing system is provided. During a video conferencing session, audio and video streams are transmitted from one processing system to a remote processing system, where they are recorded. Because the video stream has a variable frame rate during transmission, extra frames are inserted into the recorded video stream in order to maintain a constant, predetermined frame rate. During playback, synchronization information from the audio stream is provided by an audio playback process to a video playback process in order to synchronize the start of playing the audio and video streams, as well as to repeatedly synchronize the audio and video streams during playback.

摘要翻译： 提供了一种在视频会议系统中同步音频和视频流的方法和装置。 在视频会议会话期间，音频和视频流从一个处理系统传输到远程处理系统，在那里它们被记录。 因为视频流在传输期间具有可变的帧速率，所以额外的帧被插入到记录的视频流中，以保持恒定的预定帧速率。 在播放期间，来自音频流的同步信息通过音频播放处理提供给视频播放处理，以便同步播放音频和视频流的开始，以及在播放期间重复同步音频和视频流。

公开(公告)号：US07900143B2

公开(公告)日：2011-03-01

申请号：US09748895

申请日：2000-12-27

申请人： Yueheng Xu

发明人： Yueheng Xu

IPC分类号： G06F17/22

CPC分类号： G06F17/2217

摘要： A large number of characters may be represented by character codes without undue complication. For example, characters that are already represented by Unicode may be handled pursuant to the Unicode system within one 16-bit code. Characters that are not represented by Unicode may be handled in a second fashion. The characters that are not represented by Unicode may be represented by two 16-bit codes.

摘要翻译： 大量的字符可以由字符代码表示，而不会有不适当的并发症。 例如，已经由Unicode表示的字符可以在一个16位代码内根据Unicode系统进行处理。 未以Unicode表示的字符可以以第二种方式处理。 未由Unicode表示的字符可以由两个16位代码表示。

公开(公告)号：US6112233A

公开(公告)日：2000-08-29

申请号：US18405

申请日：1998-02-04

申请人： Yueheng Xu

发明人： Yueheng Xu

IPC分类号： H04L12/18 ,  H04L12/58 ,  G06F15/16 ,  G06F15/173

CPC分类号： H04L12/58 ,  H04M3/533 ,  H04L12/1813 ,  H04M2203/253

摘要： A method and system for saving and retrieving a message via a network server using an index page. The message is sent by a call to a user of a media computer. To save the message, the message is converted into a message index page if the user is not available to respond to the call. The message index page is transferred to a storage medium accessible to a network server. To retrieve a message, the message index page is accessed through a network server from a remote location via a network. The message index page is converted from the message. The message is saved due to user unavailability to respond to the call. The saved message is downloaded by way of the network server to the remote location via the network using the message index page.

摘要翻译： 一种用于通过使用索引页面的网络服务器保存和检索消息的方法和系统。 消息通过呼叫发送到媒体计算机的用户。 要保存消息，如果用户无法响应该呼叫，则该消息将转换为消息索引页。 消息索引页面被传送到网络服务器可访问的存储介质。 要检索消息，通过网络从远程位置通过网络服务器访问消息索引页。 消息索引页从消息中转换。 消息由于用户不可用来响应呼叫而被保存。 保存的消息通过网络服务器通过网络使用消息索引页面下载到远程位置。