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    • 9. 发明授权
    • Personal videoconferencing system having distributed processing architecture
    • 具有分布式处理架构的个人视频会议系统
    • US06590604B1
    • 2003-07-08
    • US09545043
    • 2000-04-07
    • Mike TuckerDon BinfordRick FlottPatrick VanderwiltMichael KenoyerJason C. WeaverEarl Manning
    • Mike TuckerDon BinfordRick FlottPatrick VanderwiltMichael KenoyerJason C. WeaverEarl Manning
    • H04N714
    • H04N7/152
    • A personal videoconferencing system includes a videoconferencing appliance connected to a personal computer through a Universal Serial Bus (USB) or similar connection. The appliance is provided with a video camera and microphone for generating local video and audio streams. The local video and audio streams are compressed by a video and audio encoder residing at the appliance, and the compressed video and audio streams are conveyed to the personal computer over the USB connection. The appliance may be further provided with an audio decoder for decompressing a remote audio stream received by the personal computer through a network interface and conveyed to the appliance via the USB connection. A video decoder, located on the personal computer, is configured to decompress the local video stream (received through the USB connection) as well as a remote video stream received through the network interface. The decompressed video streams are then sent to a monitor for display to a user. The decompressed audio stream may be played either at a loudspeaker coupled to the audio decoder or at the personal computer.
    • 个人视频会议系统包括通过通用串行总线(USB)或类似连接连接到个人计算机的视频会议设备。 该设备配有摄像机和麦克风,用于产生本地视频和音频流。 本地视频和音频流由位于设备处的视频和音频编码器压缩,压缩的视频和音频流通过USB连接传送到个人计算机。 该设备还可以设置有音频解码器,用于通过网络接口对由个人计算机接收的远程音频流进行解压缩,并通过USB连接传送到设备。 位于个人计算机上的视频解码器被配置为解压缩本地视频流(通过USB连接接收)以及通过网络接口接收的远程视频流。 然后将解压缩的视频流发送到监视器以供用户显示。 解压缩音频流可以在耦合到音频解码器或个人计算机的扬声器处播放。