公开(公告)号：US5748893A

公开(公告)日：1998-05-05

申请号：US739436

申请日：1996-10-29

申请人： Tetsuhiko Hirata ,  Minoru Koizumi ,  Masayo Nagano ,  Yoshiaki Adachi ,  Hiroshi Wataya ,  Ken Onuki

发明人： Tetsuhiko Hirata ,  Minoru Koizumi ,  Masayo Nagano ,  Yoshiaki Adachi ,  Hiroshi Wataya ,  Ken Onuki

IPC分类号： G06F13/12 ,  G06F13/00

CPC分类号： G06F13/128

摘要： It is designed to connect a duplicated LAN to a network terminal such as a controller having a standard serial or parallel interface, a computer having only one LAN interface, or a computer having only one communication line interface. The network interface apparatus for connecting a network terminal and a duplicated LAN comprises a device for controlling interfaces with the network terminal and the LAN transmission line of each of the duplicated LAN, a buffer, and a sending device to both, and the data from the network terminal is buffered in the buffer, and when the buffered data reaches a fixed amount, the data is sent to both LANs of the duplicated LAN. On the other hand, with respect to the data received from each LAN transmission line of the duplicated LAN, only the data which is judged as earlier arrival data is sent to the network terminal.

摘要翻译： 它被设计为将重复的LAN连接到诸如具有标准串行或并行接口的控制器的网络终端，仅具有一个LAN接口的计算机或仅具有一个通信线路接口的计算机。 用于连接网络终端和复制LAN的网络接口设备包括用于控制与网络终端的接口和每个复制LAN的LAN传输线，缓冲器和发送设备的接口的设备，以及来自 网络终端被缓冲在缓冲器中，当缓冲数据达到固定数量时，数据被发送到复制LAN的两个LAN。 另一方面，对于从复制LAN的每个LAN传输线接收到的数据，仅将被判断为较早的到达数据的数据发送到网络终端。

公开(公告)号：US4704714A

公开(公告)日：1987-11-03

申请号：US677242

申请日：1984-12-03

申请人： Hiroshi Tomizawa ,  Masakazu Okada ,  Seiichi Yasumoto ,  Sadao Mizokawa ,  Hitoshi Fushimi ,  Ken Onuki ,  Masahiro Takahashi ,  Takuji Hamada

发明人： Hiroshi Tomizawa ,  Masakazu Okada ,  Seiichi Yasumoto ,  Sadao Mizokawa ,  Hitoshi Fushimi ,  Ken Onuki ,  Masahiro Takahashi ,  Takuji Hamada

IPC分类号： H04L12/437 ,  H04J3/14 ,  H04Q9/00

CPC分类号： H04L12/437

摘要： A looped data transmission system has a pair of looped transmission lines forming two transmission systems having different transmission directions, and a plurality of stations including at least one control station connected to said transmission lines of the two transmission systems. If a fault occurs in the two transmission lines of the two transmission systems in the same section, a loopback configuration is established such that stations adjacent to the faulty section send signals from one system back to the other system. With the loopback configuration being established, the stations which have received supervisory signals sent from a loopback end station send them back to the transmission line of the other system. When one of the loopback end stations has received a supervisory signal from the direction of the faulty section, it is judged that a portion of the faulty section is recovered, and the result of the judgement is communicated to the control station.

摘要翻译： 循环数据传输系统具有形成具有不同传输方向的两个传输系统的一对循环传输线，以及包括连接到两个传输系统的所述传输线的至少一个控制站的多个站。 如果在同一部分的两个传输系统的两个传输线路中发生故障，则建立回送配置，使得与故障部分相邻的站点将信号从一个系统发送回另一个系统。 在建立环回配置的情况下，已经接收到从环回端站发送的监控信号的站将它们发回到另一系统的传输线。 当其中一个环回终端站从故障部分的方向接收到监控信号时，判断有故障部分的一部分被恢复，并将判断结果通知给控制站。

公开(公告)号：US5426638A

公开(公告)日：1995-06-20

申请号：US495750

申请日：1990-03-19

申请人： Hisayuki Maruyama ,  Sadao Mizokawa ,  Seiichi Yasumoto ,  Ken Onuki ,  Hisao Ogawa ,  Junji Fukuzawa ,  Toshihiko Uchiyama ,  Toshiyuki Murakami ,  Osamu Anbo ,  Masato Satake

发明人： Hisayuki Maruyama ,  Sadao Mizokawa ,  Seiichi Yasumoto ,  Ken Onuki ,  Hisao Ogawa ,  Junji Fukuzawa ,  Toshihiko Uchiyama ,  Toshiyuki Murakami ,  Osamu Anbo ,  Masato Satake

IPC分类号： H04L12/417 ,  H04L12/64 ,  H04J3/02

CPC分类号： H04L12/417 ,  H04L12/64

摘要： A data transmission method and system of a token passing type capable of periodically transmitting cyclic data produced in a station to other stations while enabling a packet data communication with high efficiency and without disturbing the periodicity of the cyclic communication. A token circulation time is set to be shorter than a cycle time for production of the cyclic data where no packet data is to be transmitted. Also each station will pass an acquired token immediately to the next station if the station has no data to be transmitted. Thus, at least one station can receives a token at least two times during the cycle time to transmit the cyclic data and the packet data. Upper limits may be set to capacities of the cyclic data and the packet data which are capable of being transmitted each time the token is acquired.

摘要翻译： 一种令牌通过型的数据传输方法和系统，其能够在能够以高效率进行分组数据通信并且不干扰循环通信的周期性的情况下周期性地向其他站发送在站中产生的循环数据。 令牌循环时间设定为短于生成不发送分组数据的循环数据的周期时间。 如果该站没有要发送的数据，每个站也将立即将获取的令牌传递到下一个站。 因此，至少一个站可以在循环时间期间至少接收两次令牌，以发送循环数据和分组数据。 可以将上限设置为每次获取令牌时能够发送的循环数据和分组数据的容量。

公开(公告)号：US4855993A

公开(公告)日：1989-08-08

申请号：US158696

申请日：1988-02-22

申请人： Takuji Hamada ,  Masahiro Takahashi ,  Katsuhiko Yoneda ,  Ken Onuki ,  Toshihiko Uchiyama

发明人： Takuji Hamada ,  Masahiro Takahashi ,  Katsuhiko Yoneda ,  Ken Onuki ,  Toshihiko Uchiyama

IPC分类号： H04L12/437

CPC分类号： H04L12/437

摘要： A ring network data transmission system includes a plurality of transmission apparatuses, at least one terminal connected to each of the transmission apparatuses and double ring transmission paths interconnecting the transmission apparatuses in a ring-like system configuration so that terminals can communicate with one another through the associated transmission apparatuses. When a transmission fault occurs in the network, the transmission apparatus which can serve as the master station issues to all of the other transmission apparatuses a command for searching the fault location. In response to the reception of the command, each of the other transmission apparatuses sends out a monitor signal containing its own address and at the same time checks monitor signal received. Through collation of the address contained in the received monitor signal with the address information arrayed in the order in which the transmission apparatuses are interconnected, the number of bypassed transmission apparatuses existing between each transmission apparatus and the transmission apparatus sending out the monitor signal is determined. By comparing this number with a predetermined maximum permissible number of the stages allowable to be bypassed, the faulty location is detected. With such an operation, automatic reconfiguration operation of double ring configuration can be stabilized.

公开(公告)号：US5706422A

公开(公告)日：1998-01-06

申请号：US682012

申请日：1996-07-16

申请人： Hisayuki Maruyama ,  Jushi Ide ,  Seiichi Yasumoto ,  Sadao Mizokawa ,  Ken Onuki ,  Toshio Ishihara ,  Masato Satake ,  Toshihiko Uchiyama

发明人： Hisayuki Maruyama ,  Jushi Ide ,  Seiichi Yasumoto ,  Sadao Mizokawa ,  Ken Onuki ,  Toshio Ishihara ,  Masato Satake ,  Toshihiko Uchiyama

IPC分类号： G06F11/00 ,  H04L12/42 ,  H04L12/437

CPC分类号： G06F11/1479 ,  H04L12/437 ,  G06F11/1489

摘要： A plurality of different fault locating functions are provided in a communication system comprising a plurality of terminals connected to a data transmission channel. The functions are at different levels, respectively, ranging from a level for rapid fault location to a level for reliable and sure fault location. Upon detection of an occurrence of a fault, one fault locating function is performed. If the fault is not located accurately located, another fault locating function of a level for more reliable is performed, thus the functions are performed sequentially in the order from the level for rapid location to the level for more deliberate and reliable location. Preferably, the channel is reconfigured to avoid the fault, according to the fault located by the functions of the respective levels. With this arrangement, a fault which does most possibly occur can be located quickly, while another fault difficult to locate can be located accurately.

摘要翻译： 在包括连接到数据传输信道的多个终端的通信系统中提供多个不同的故障定位功能。 这些功能分别处于不同的级别，从快速故障定位的级别到可靠和可靠的故障定位的级别。 在检测到故障发生时，执行一个故障定位功能。 如果故障定位不准确，则可以进行更可靠的故障定位功能，从而可以按照从快速到高级的顺序顺序执行功能，从而更有效，可靠的位置。 优选地，根据由各个级别的功能定位的故障，重新配置信道以避免故障。 通过这种布置，可能发生最可能发生的故障可以快速定位，而难以定位的另一个故障可以准确定位。

公开(公告)号：US5497374A

公开(公告)日：1996-03-05

申请号：US299634

申请日：1994-09-02

申请人： Hisayuki Maruyama ,  Sadao Mizokawa ,  Seiichi Yasumoto ,  Ken Onuki ,  Hisao Ogawa ,  Junji Fukuzawa ,  Toshihiko Uchiyama ,  Toshiyuki Murakami ,  Osamu Anbo ,  Masato Satake

发明人： Hisayuki Maruyama ,  Sadao Mizokawa ,  Seiichi Yasumoto ,  Ken Onuki ,  Hisao Ogawa ,  Junji Fukuzawa ,  Toshihiko Uchiyama ,  Toshiyuki Murakami ,  Osamu Anbo ,  Masato Satake

IPC分类号： H04L12/417 ,  H04L12/64

CPC分类号： H04L12/417 ,  H04L12/64

摘要： A data transmission method and system of a token passing type capable of periodically transmitting cyclic data produced in a station to other stations while enabling a packet data communication with high efficiency and without disturbing the periodicity of the cyclic communication. A token circulation time is set to be shorter than a cycle time for production of the cyclic data where no packet data to be transmitted. Also each station will pass an acquired token immediately to the next station if the station has no data to be transmitted. Thus, at least one station can have a token at least two times during the cycle time to transmit the cyclic data and the packet data. Upper limits may be set to capacities of the cyclic data and the packet data which are capable of being transmitted each time the token is acquired.

摘要翻译： 一种令牌通过型的数据传输方法和系统，其能够在能够以高效率进行分组数据通信并且不干扰循环通信的周期性的情况下周期性地向其他站发送在站中产生的循环数据。 令牌循环时间被设置为短于用于生成不发送分组数据的循环数据的周期时间。 如果该站没有要发送的数据，每个站也将立即将获取的令牌传递到下一个站。 因此，在循环时间期间，至少一个站可以具有令牌至少两次以发送循环数据和分组数据。 可以将上限设置为每次获取令牌时能够发送的循环数据和分组数据的容量。