专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5159595A Ring transmission system 失效
标题翻译：环传输系统
公开(公告)号：US5159595A
公开(公告)日：1992-10-27
申请号：US286713
申请日：1988-12-20
申请人： Thomas P. J. Flanagan , James A. McEachern , David J. Nicholson , Dino Diperna , Richard Romagnino , Wayne Ergle
发明人： Thomas P. J. Flanagan , James A. McEachern , David J. Nicholson , Dino Diperna , Richard Romagnino , Wayne Ergle
IPC分类号： H04J3/08 , H04L12/437 , H04L12/56 , H04Q11/04
CPC分类号： H04J14/0293 , H04J14/0283 , H04J3/085 , H04L12/437 , H04Q11/04 , H04J2203/0089 , H04L2012/5612
摘要： A transmission system comprises nodes coupled in a ring via two multiplexed transmission paths having opposite transmission directions. The two paths can be time, space, or wavelength division multiplexed. Bidirectional communications between any two nodes are provided in normal operation using both paths around a first, most direct, part of the ring. In the event of a fault affecting such communications, a protection switch is made to maintain bidirectional communications between the two nodes using both paths around a second, remaining, part of the ring. In this manner, each path can simultaneously carry both normal and protection switched signals. In an embodiment of the invention, only the two nodes adjacent a fault need be aware of the fault, each of these nodes effecting a protection switch for signals terminated at the node and effecting a protective loopback for other signals needing protection. The invention enhances the total capacity of the paths for carrying normal and protection switched signals. A network may comprise a plurality of such ring transmission systems intersecting at at least one network node, the network node comprising a node of each ring and a cross connect switch for switching signals therebetween.
摘要翻译：传输系统包括通过具有相反传输方向的两个复用传输路径耦合在环中的节点。这两条路径可以是时间，空间或波分复用。在正常操作中，使用围绕环的第一，最直接的部分的两个路径来提供任何两个节点之间的双向通信。在影响这种通信的故障的情况下，使用围绕第二剩余部分环路的两个路径来保护两个节点之间的双向通信的保护开关。以这种方式，每个路径可同时携带正常和保护切换信号。在本发明的一个实施例中，只有与故障相邻的两个节点需要知道故障，这些节点中的每个节点对终止在节点处的信号执行保护开关，并对需要保护的其他信号进行保护环回。本发明增强了用于承载正常和保护开关信号的路径的总容量。网络可以包括与至少一个网络节点相交的多个这样的环形传输系统，网络节点包括每个环的节点和用于在它们之间切换信号的交叉连接开关。

2. 发明授权

US5646678A Digital video network with continuous audio presence at network sites 失效
标题翻译：数字视频网络，网络连续的音频存在
公开(公告)号：US5646678A
公开(公告)日：1997-07-08
申请号：US413556
申请日：1995-03-30
申请人： Mario Bonja , Simon John Peter Phillip Worrall , Richard Romagnino
发明人： Mario Bonja , Simon John Peter Phillip Worrall , Richard Romagnino
IPC分类号： H04N7/15 , H04N7/14 , H04N9/74 , H04N9/76
CPC分类号： H04N7/15
摘要： A digital video network comprises a controller and network sites each coupled to the controller via communication paths. The network sites and controller include codecs for converting between encoded signals on the communications paths and video and audio signals in the network sites and in the controller. The controller also includes at least one unit for producing a quad split video signal from four video signals supplied thereto. The coders encode four audio signal channels and audio mixing control signals in each encoded signal. The decoder in each network site decodes the audio signal channels from the encoded signal which it receives, and is responsive to the control signal in the encoded signal to mix the decoded audio signal channels in a predetermined manner to provide a continuous audio presence at the network site, independently of whether or not the video signal in the encoded signal comprises the quad split video signal.
摘要翻译：数字视频网络包括控制器和网络站点，每个网络站点经由通信路径耦合到控制器。网络站点和控制器包括用于在通信路径上的编码信号和网络站点和控制器中的视频和音频信号之间进行转换的编解码器。控制器还包括至少一个单元，用于从提供给其的四个视频信号产生四分割视频信号。编码器在每个编码信号中编码四个音频信号信道和音频混合控制信号。每个网络中的解码器从其接收到的编码信号中解码音频信号信道，并且响应编码信号中的控制信号以预定方式混合解码的音频信号信道以在网络上提供连续的音频存在独立于编码信号中的视频信号是否包括四分割视频信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式