公开(公告)号：US5425019A

公开(公告)日：1995-06-13

申请号：US123453

申请日：1993-09-17

申请人： Akira Chugo ,  Masafumi Katoh ,  Ichiro Iida ,  Kazuo Sakagawa ,  Yoshihiro Watanabe ,  Toshio Soumiya

发明人： Akira Chugo ,  Masafumi Katoh ,  Ichiro Iida ,  Kazuo Sakagawa ,  Yoshihiro Watanabe ,  Toshio Soumiya

IPC分类号： H04M3/00 ,  H04L1/22 ,  H04L12/00 ,  H04J3/26

CPC分类号： H04L12/5602 ,  H04L1/22 ,  H04L2012/5619 ,  H04L2012/5627 ,  H04L2012/5632 ,  H04L2012/5651

摘要： The present invention is designed such that the communication quality of a currently connected normal call is deteriorated and the transmission of the normal call is delayed in a network when an emergent call is set. As a result, the required bandwidth of the emergent call is successfully reserved. Furthermore, the present invention is designed such that a deteriorated normal call is detoured to a detour circuit to improve the communication quality of the normal call. In the detouring process, one or more detour circuits are managed for each normal call so that the possibility of a successful detour to a detour circuit can be raised. Additionally, in the normal call detouring process, a plurality of detour circuits guarantee a normal call its communication quality even if a single detour circuit is not enough to meet the required bandwidth of a normal call.

摘要翻译： 本发明被设计成使得当设置紧急呼叫时，当前连接的普通呼叫的通信质量恶化并且在网络中正常呼叫的传输被延迟。 因此，紧急呼叫的所需带宽成功保留。 此外，本发明被设计成使得恶化的正常呼叫被绕行到绕行电路以改善正常呼叫的通信质量。 在迂回过程中，对于每个正常呼叫来管理一个或多个迂回电路，从而可以提高绕行电路成功绕行的可能性。 此外，在正常呼叫迂回处理中，即使单个迂回电路不足以满足正常呼叫的所需带宽，多个迂回电路也保证正常呼叫其通信质量。

公开(公告)号：US5287535A

公开(公告)日：1994-02-15

申请号：US880066

申请日：1992-05-07

申请人： Kazuo Sakagawa ,  Teruhisa Nakamura ,  Ichiro Iida

发明人： Kazuo Sakagawa ,  Teruhisa Nakamura ,  Ichiro Iida

IPC分类号： H04L12/70 ,  H04L12/931 ,  H04L12/933 ,  H04L12/935 ,  H04L12/937 ,  H04Q11/04

CPC分类号： H04L49/501 ,  H04L49/104 ,  H04L49/20 ,  H04L49/254 ,  H04L49/506 ,  H04Q11/0478 ,  H04L2012/564 ,  H04L2012/5645 ,  H04L49/30 ,  H04L49/3009

摘要： A switching node in a label multiplexing type switching network includes a switch for selectively coupling input logical communications paths and output logical communications paths with each other, m permanent logical communications paths being included in the input logical communications paths where m is an integer larger than or equal to 1, n permanent logical communications paths being included in the output logical communications paths where n is an integer larger than or equal to 1. The switch node includes a call control unit for receiving connection-oriented type information through any of the input logical communications paths and for controlling the switch so that the connection-oriented type information are selectively transferred to the output logical communications paths via the switch on the basis of routing address information related to the connection-oriented type information. The switch node comprises a routing unit for receiving connectionless type information through any of the m logical communications paths and for controlling the switch so that the connectionless type information are selectively transferred to the n permanent logical communications paths via the switch on the basis of routing address information related to the connectionless type information.

摘要翻译： 标签复用型交换网络中的交换节点包括用于选择性地耦合输入逻辑通信路径并输出逻辑通信路径的交换机，m个永久逻辑通信路径包括在输入逻辑通信路径中，其中m是大于或等于 等于1，n个永久逻辑通信路径被包括在输出逻辑通信路径中，其中n是大于或等于1的整数。交换节点包括呼叫控制单元，用于通过输入逻辑中的任一个接收面向连接的类型信息 通信路径和用于控制交换机，使得面向连接的类型信息基于与面向连接的类型信息相关的路由地址信息经由交换机选择性地传送到输出逻辑通信路径。 交换节点包括路由单元，用于通过任何m条逻辑通信路径接收无连接类型信息，并用于控制交换机，使得无连接类型信息经由交换机根据路由地址选择性地传送到n条永久逻辑通信路径 与无连接类型信息相关的信息。

公开(公告)号：US5774662A

公开(公告)日：1998-06-30

申请号：US446496

申请日：1995-05-22

申请人： Kazuo Sakagawa

发明人： Kazuo Sakagawa

IPC分类号： H04Q3/00 ,  H04L12/28 ,  H04L12/70 ,  H04L29/06 ,  G06F12/02

CPC分类号： H04L49/3081 ,  H04L29/06 ,  H04L49/106 ,  H04L49/201 ,  H04L49/3009 ,  H04L2012/5615 ,  H04L2012/5616 ,  H04L2012/563 ,  H04L49/101

摘要： A originating terminal sends an ATM address interrogation request to a server if the ATM address of another party's terminal is unknown at the time of communication. Upon receiving the ATM address interrogation request from the terminal, the server refers to an ATM address table, searches the table for an ATM address corresponding to a protocol address contained in the interrogation request and notifies the originating terminal of this ATM address. If an ATM address corresponding to the protocol address has not been registered in the ATM address table, the server transfers (broadcasts) the ATM address interrogation request to all terminals. The server notifies the originating terminal of an ATM address obtained by an answer in response to this interrogation request and registers the ATM address in the ATM address table.

公开(公告)号：US06421321B1

公开(公告)日：2002-07-16

申请号：US09019403

申请日：1998-02-05

申请人： Kazuo Sakagawa ,  Jun Ogawa

发明人： Kazuo Sakagawa ,  Jun Ogawa

IPC分类号： H04L1226

CPC分类号： H04L12/4608 ,  H04L45/10 ,  H04L45/22 ,  H04L45/30

摘要： An apparatus and a method for transferring a packet flow having a plurality of packets in a communication network which includes plural subnetworks, first and second end systems connected to the respective subnetworks and a transit system for relaying the packet and a message between the first and second end systems through a default route, where the packet flow is forwarded from the first end system to the second end system or to a terminal connected to the second end system, in the first end system, determines it by collating the packet with a predetermined criterion whether to forward the packet flow through a shortcut path bypassing the default route and in dependence upon the determining, sends to the second end system through the default route, a request message requesting to set the shortcut path, along with an address of the first end system; in the second end system, requests the communication network to set the shortcut path between the first and second end systems in accordance with the request message; and in the first and second end systems, forwards the packet flow through the shortcut path.

摘要翻译： 一种用于在包括多个子网络的通信网络中传送具有多个分组的分组的装置和方法，连接到各个子网络的第一和第二端系统以及用于中继分组的传输系统和在第一和第二 通过默认路由，其中​​分组流从第一端系统转发到第二端系统或连接到第二端系统的终端，在第一端系统中，通过将分组与预定标准进行核对来确定 是否通过绕过默认路由的快捷路径转发数据包流，并且根据确定，通过默认路由向第二终端系统发送请求设置快捷路径的请求消息以及第一端的地址 系统; 在第二端系统中，请求通信网络根据请求消息设置第一和第二终端系统之间的快捷路径; 并且在第一和第二端系统中，通过快捷路径转发分组流。

公开(公告)号：USRE39317E1

公开(公告)日：2006-10-03

申请号：US09427945

申请日：1999-10-26

申请人： Kazuo Sakagawa

发明人： Kazuo Sakagawa

IPC分类号： G06F15/173

CPC分类号： H04L49/3081 ,  H04L29/06 ,  H04L49/101 ,  H04L49/106 ,  H04L49/201 ,  H04L49/3009 ,  H04L2012/5615 ,  H04L2012/5616 ,  H04L2012/563

摘要： A originating terminal sends an ATM address interrogation request to a server if the ATM address of another party's terminal is unknown at the time of communication. Upon receiving the ATM address interrogation request from the terminal, the server refers to an ATM address table, searches the table for an ATM address corresponding to a protocol address contained in the interrogation request and notifies the originating terminal of this ATM address. If an ATM address corresponding to the protocol address has not been registered in the ATM address table, the server transfers (broadcasts) the ATM address interrogation request to all terminals. The server notifies the originating terminal of an ATM address obtained by an answer in response to this interrogation request and registers the ATM address in the ATM address table.

摘要翻译： 如果另一方的终端的ATM地址在通信时未知，则始发终端向服务器发送ATM地址询问请求。 在从终端接收到ATM地址询问请求时，服务器参考ATM地址表，在表中搜索与询问请求中包含的协议地址对应的ATM地址，并通知发起终端该ATM地址。 如果与ATM协议地址相对应的ATM地址尚未登记在ATM地址表中，则服务器将ATM地址询问请求传送（广播）给所有终端。 服务器响应于该询问请求向起始终端通知由答复获得的ATM地址，并将ATM地址登记在ATM地址表中。

公开(公告)号：US5068820A

公开(公告)日：1991-11-26

申请号：US221908

申请日：1988-06-10

申请人： Satoshi Nojima ,  Kazuo Sakagawa ,  Hideo Suzuki

发明人： Satoshi Nojima ,  Kazuo Sakagawa ,  Hideo Suzuki

IPC分类号： G06F13/42

CPC分类号： G06F13/4226

摘要： A data transfer system having a transfer discrimination circuit for discriminating the type of data transfer between an input/output channel device and I/O devices for a computer includes a transfer discrimination circuit. This circuit includes a edge detection unit operating in response to a tag signal supplied to the edge detection unit for detecting the trailing edge of the tag signal after a leading edge of the tag signal has passed. The edge detection unit having a leading edge detector, a trailing edge detector, a storage element, and logic gate circuits. A timing unit is included operating in response to the output of the edge detection unit for counting a predetermined time, along with a discrimination storage unit operating in response to the output of the timing unit for delivering an output indicating an interlock data transfer or an output indicating a data streaming feature data transfer.

摘要翻译： 具有用于识别输入/输出通道设备和用于计算机的I / O设备之间的数据传输类型的传送鉴别电路的数据传送系统包括传送鉴别电路。 该电路包括边缘检测单元，其响应于提供给边缘检测单元的标签信号而工作，用于在标签信号的前沿通过之后检测标签信号的后沿。 边缘检测单元具有前沿检测器，后沿检测器，存储元件和逻辑门电路。 包括响应于用于计数预定时间的边缘检测单元的输出而操作的定时单元以及响应于用于传送指示互锁数据传送或输出的输出的定时单元的输出而操作的鉴别存储单元 指示数据流特征数据传输。