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    • 2. 发明申请
    • APPARATUS AND METHOD FOR PRESENTING AUDIO IN A VIDEO TELECONFERENCE
    • 在视频电视中呈现音频的装置和方法
    • US20070188595A1
    • 2007-08-16
    • US11461373
    • 2006-07-31
    • BRAN FERRENW. Hillis
    • BRAN FERRENW. Hillis
    • H04N7/14
    • H04N7/142H04L12/1827H04L29/06027H04L65/403H04N7/147
    • An advanced video teleconferencing (AVTC) system uniquely combines a number of features to promote a realistic “same room” experience for meeting participants. These features include an autodirector to select audio and video sources and to compose shots, a collaboration interface for each participant to communicate nonverbal information, directional LEDs to privately alert participants, audio reflected from the main display, and a collaborative table to share a video of objects or papers on a table. When implemented with sufficient bandwidth for take advantage of these features and to keep latency time low, this AVTC system results in a highly realistic and productive teleconferencing experience.
    • 先进的视频电话会议(AVTC)系统独特地结合了许多功能,为会议参与者提供了一个现实的“同一个房间”体验。 这些功能包括一个自动定向器,用于选择音频和视频源并组合镜头,每个参与者的协作界面用于传达非语言信息,定向LED以私人警报参与者,从主显示器反射的音频以及协作表,以共享视频 桌子上的物品或纸张。 当实现足够的带宽以利用这些功能并且保持低延迟时间时,该AVTC系统产生了高度现实和高效的电话会议体验。
    • 8. 发明申请
    • Method and apparatus for synchronizing audio and video in encrypted videoconferences
    • 用于在加密视频会议中同步音频和视频的方法和装置
    • US20050058287A1
    • 2005-03-17
    • US10661110
    • 2003-09-12
    • Bran FerrenW. HillisGerard Roccanova
    • Bran FerrenW. HillisGerard Roccanova
    • H04J20060101H04N7/14H04N7/167
    • H04N21/4788H04N7/142H04N7/147H04N21/8547
    • The invention provides a system that preserves the synchronization of the audio and video presented at a secure conferencing site without necessitating decryption, decompression, compression, and encryption of signals at the hub. The presently preferred embodiment of the invention provides an apparatus and method for synchronizing audio and video in encrypted videoconferences that comprises a plurality of conference sites; and a hub for receiving a compressed and encrypted, composite audio and video signal from each site, for determining a currently active site, and for transmitting said composite audio and video signal from said currently active site to all other sites; said hub receiving a compressed and encrypted audio only signal from each site; wherein said hub routes all incoming compressed and encrypted audio only signals to each site.
    • 本发明提供了一种系统,其保持在安全会议场所呈现的音频和视频的同步,而不需要在集线器处对信号进行解密,解压缩,压缩和加密。 本发明的当前优选实施例提供了一种用于在包括多个会议地点的加密视频会议中同步音频和视频的装置和方法; 以及用于从每个站点接收压缩和加密的复合音频和视频信号的集线器,用于确定当前活动的站点,以及用于将所述复合音频和视频信号从所述当前活动站点发送到所有其他站点; 所述集线器从每个站点接收压缩和加密的仅音频信号; 其中所述集线器将所有输入的压缩和加密的仅音频信号路由到每个站点。