公开(公告)号：US06611537B1

公开(公告)日：2003-08-26

申请号：US09079914

申请日：1998-05-15

申请人： Glenn T. Edens ,  Donald Robert Hoover ,  Roger Charles Meike ,  Timothy Andrew Ryan

发明人： Glenn T. Edens ,  Donald Robert Hoover ,  Roger Charles Meike ,  Timothy Andrew Ryan

IPC分类号： H04J316

CPC分类号： H04L12/2832 ,  H04L12/2803 ,  H04L12/2807 ,  H04L12/283 ,  H04L25/4908 ,  H04L2012/2845 ,  H04L2012/2849 ,  H04N7/106 ,  H04N19/186 ,  H04N19/42 ,  H04N19/647 ,  H04N21/23602 ,  H04N21/434 ,  H04N21/4342 ,  H04N21/4363

摘要： A network adapter for a synchronous logical ring network operates on existing physical twisted-pair telephone topologies. Information propagates around the logical ring, reaching every device on each revolution around the network. Network devices are full-duplex, transmitting and receiving information on every clock cycle. Network devices arbitrate to be elected the network clock device. By synchronizing all network devices to a single reference clock, and providing fixed frames of information propagating around the network at consistent time intervals, the logical ring network ensures that information propagates from one device to another at consistent time intervals. The fixed-length frames are divided into two independent streams: a data stream for the distribution of real-time continuous digital media streams; and a system command stream for the distribution of system commands.

摘要翻译： 用于同步逻辑环网的网络适配器在现有物理双绞线电话拓扑上运行。 信息围绕逻辑环传播，在网络周围的每场革命中到达每个设备。 网络设备是全双工，每个时钟周期发送和接收信息。 网络设备仲裁为网络时钟设备。 通过将所有网络设备同步到单个参考时钟，并以一致的时间间隔提供围绕网络传播的固定信息帧，逻辑环网确保信息以一致的时间间隔从一个设备传播到另一个设备。 固定长度帧被分成两个独立的流：用于分发实时连续数字媒体流的数据流; 以及用于分发系统命令的系统命令流。