公开(公告)号：US20050195805A1

公开(公告)日：2005-09-08

申请号：US10855645

申请日：2004-05-28

申请人： Hidehiko Hanaoka ,  Daiji Yagi ,  Masanori Inui

发明人： Hidehiko Hanaoka ,  Daiji Yagi ,  Masanori Inui

IPC分类号： H04L12/70 ,  H04L12/66 ,  H04L12/761

CPC分类号： H04M1/253

摘要： To implement a key telephone system through an IP (Internet protocol) network, if real-time broadcast information is transmitted by multicast communications, restriction to prevent a rapid increase in network traffic is received, an additional special protocol is required, and it is hard to ensure the confidentiality of information. If real-time broadcast information is transmitted by unicast communications, transmission processing is centralized on a broadcast information transmission apparatus, the traffic becomes enormous, and a broad communication band and a high processing capability become necessary. Therefore, a transmission dedicated apparatus is provided between a broadcast information transmission apparatus and a terminal for distributing the transmission function and traffic. The broadcast information transmission apparatus needs only to manage the transmission dedicated apparatus. A plurality of terminals, etc., can be connected to the transmission dedicated apparatus. Further, a transmission dedicated apparatus can also be connected as a subordinate node to the transmission dedicated apparatus.

摘要翻译： 为了通过IP（因特网协议）网络实现密钥电话系统，如果通过组播通信发送实时广播信息，则接收到阻止网络流量快速增长的限制，需要额外的特殊协议，难度 确保信息的机密性。 如果通过单播通信发送实时广播信息，则在广播信息发送装置上集中发送处理，业务变得巨大，需要广泛的通信频带和高处理能力。 因此，在广播信息发送装置和分发发送功能和业务的终端之间设置发送专用装置。 广播信息发送装置仅需要管理传输专用装置。 多个终端等可以连接到传输专用设备。 此外，传输专用设备也可以作为从属节点连接到传输专用设备。