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2. 发明授权

US5509009A Video and aural communications system 失效
标题翻译：视频和听觉通信系统
公开(公告)号：US5509009A
公开(公告)日：1996-04-16
申请号：US65171
申请日：1993-05-20
申请人： John Laycock , Michael W. Thomas
发明人： John Laycock , Michael W. Thomas
IPC分类号： H04N7/14 , H04Q11/04 , H04L12/18
CPC分类号： H04N7/148 , H04Q11/0435 , Y10S379/908
摘要： A dial-up aural and visual communication system includes a telecommunication network with a switch connected thereto, a codec subsystem connected to the switch and video equipment connected to the switch via the codec subsystem with voice communication equipment connected directly to the switch. The codec subsystem is shared between several end users and can be located near the switch. Sharing the codec reduces cost and amount of equipment at end users desk. The codec subsystem can also switch video, including composite video, between local lines and can include frame and image storage. The codec can transmit at 9.6 kbps, p.times.64 kbps, and via ISDN. The system can be used for video conferencing, remote surveillance or desk-top services, and can include an image grooming system. Images may be stored in switch facilities traditionally used for voice mail.
摘要翻译：拨号听觉和视觉通信系统包括具有连接到其上的交换机的电信网络，连接到交换机的编解码器子系统和经由编解码器子系统连接到交换机的视频设备，语音通信设备直接连接到交换机。编解码器子系统在几个最终用户之间共享，可以位于交换机附近。共享编解码器可以降低最终用户桌面的设备成本和数量。编解码器子系统还可以在本地线路之间切换视频，包括复合视频，并且可以包括帧和图像存储。编解码器可以以9.6kbps，px64kbps和ISDN传输。该系统可用于视频会议，远程监控或桌面服务，并可包括图像整理系统。图像可以存储在传统上用于语音邮件的交换机中。

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