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：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：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。

公开(公告)号：US4401365A

公开(公告)日：1983-08-30

申请号：US232193

申请日：1981-02-06

申请人： Sadao Mizokawa ,  Yoshiji Ito ,  Yasuo Hosoda ,  Hiroshi Kaita ,  Tadaaki Okada ,  Hiroaki Ohnishi ,  Seiichi Yasumoto ,  Hitoshi Fushimi ,  Jushi Ide ,  Hiroshi Kuwahara

发明人： Sadao Mizokawa ,  Yoshiji Ito ,  Yasuo Hosoda ,  Hiroshi Kaita ,  Tadaaki Okada ,  Hiroaki Ohnishi ,  Seiichi Yasumoto ,  Hitoshi Fushimi ,  Jushi Ide ,  Hiroshi Kuwahara

IPC分类号： G02B6/35 ,  G02B5/14

CPC分类号： G02B6/3504 ,  G02B6/3556 ,  G02B6/3562

摘要： Disclosed is an optical switch of the rotary-type in which a pair of opposing optical transmission path mounting members are disposed on the same axis.A plurality of junction faces of optical transmission paths disposed on the respective opposing plane portions of the mounting members along phantom circles which are opposite to each other and concentric with the pair of mounting members respectively with respect to the axis so that the junction faces on the respective plane portions are capable of being correspondingly opposite to each other.When the pair of the mounting members are relatively rotated about the axis, the facing mates of the opposing junction faces of the optical transmission paths are changed over to switch the optical transmission paths.In the case where an optical path relay member is interposed between the pair of the optical transmission path mounting members, the optical transmission paths can be switched by only the rotation of the optical path relay member.

摘要翻译： 公开了一种旋转型光学开关，其中一对相对的光传输路径安装构件设置在同一轴线上。 多个光传输路径的接合面，沿着虚拟环设置在安装构件的相对的相对平面部分上，其彼此相对并且与所述一对安装构件分别相对于轴线同心，使得接合面 各个平面部分能够相应地彼此相对。 当一对安装构件围绕轴线相对旋转时，光传输路径的相对接合面的面对配合被切换以切换光传输路径。 在光路中继构件插入在一对光传输路径安装构件之间的情况下，只能通过光路中继构件的旋转来切换光传输路径。

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：US5210632A

公开(公告)日：1993-05-11

申请号：US526713

申请日：1990-05-22

申请人： Toshiyuki Murakami ,  Sadao Mizokawa ,  Hisayuki Maruyama ,  Masato Satake ,  Masanori Kogawa ,  Naomasa Hanano

发明人： Toshiyuki Murakami ,  Sadao Mizokawa ,  Hisayuki Maruyama ,  Masato Satake ,  Masanori Kogawa ,  Naomasa Hanano

IPC分类号： H04B10/27 ,  H04B10/073 ,  H04B10/077 ,  H04B10/079 ,  H04B10/2507 ,  H04B10/272 ,  H04B10/278 ,  H04B10/29 ,  H04L12/44 ,  H04L12/46 ,  H04L12/66

CPC分类号： H04B10/2725

摘要： A signal transmission system comprising an apparatus which inhibits the repeating in the opposite direction during reception and transmission of frames and which monitors the number of frames which were outputted in one direction from a repeater and the number of frames which were returned from such direction, whereby a destruction and circulation of the frame are inhibited without reducing response speed of a signal.

摘要翻译： 一种信号传输系统，包括在帧的接收和发送期间禁止在相反方向重复的装置，并且监视从中继器在一个方向上输出的帧的数量和从该方向返回的帧的数量，由此 抑制帧的破坏和循环而不降低信号的响应速度。

公开(公告)号：US4398288A

公开(公告)日：1983-08-09

申请号：US229180

申请日：1981-01-27

申请人： Sadao Mizokawa ,  Seiichi Yasumoto ,  Masahiro Takahashi

发明人： Sadao Mizokawa ,  Seiichi Yasumoto ,  Masahiro Takahashi

IPC分类号： H04L12/437 ,  H04J3/06

CPC分类号： H04L12/437

摘要： The periodicity of an input signal is monitored by means of a re-triggerable one-shot multivibrator. When an input signal interruption is detected by the output of the multivibrator, the state of the input signal interruption is held to interrupt the transmission until a phase locked loop is demodulated. The transmission is not opened until the phase locked loop is brought into its synchronous state.

摘要翻译： 通过可重复触发的单稳态多谐振荡器来监视输入信号的周期。 当多谐振荡器的输出检测到输入信号中断时，保持输入信号中断的状态以中断传输，直到锁相环解调为止。 在锁相环进入同步状态之前，传输不会打开。

公开(公告)号：US4530085A

公开(公告)日：1985-07-16

申请号：US482701

申请日：1983-04-06

申请人： Takuji Hamada ,  Masahiro Takahashi ,  Sadao Mizokawa ,  Hitoshi Fushimi ,  Seiichi Yasumoto

发明人： Takuji Hamada ,  Masahiro Takahashi ,  Sadao Mizokawa ,  Hitoshi Fushimi ,  Seiichi Yasumoto

IPC分类号： H04L1/22 ,  H04B1/74 ,  H04L12/437 ,  H04J3/14 ,  H04Q9/00

CPC分类号： H04L12/437 ,  H04B1/74

摘要： This invention discloses a loop-back control method for loop-type data transmission systems in which, when a trouble occurs on both transmission lines of two systems, two stations adjacent to the trouble region return signals toward a control station in response to a command from the control station, thereby to separate the trouble region and continue the operation. According to this invention, when the control station detects the occurrence of a trouble on the transmission lines of the two systems, it sends out a broadcast command to search for the trouble point to the transmission lines of both systems and thereafter a loop-back command is issued so that the stations adjacent to the trouble point can loop-back the transmission.

摘要翻译： 本发明公开了一种环路数据传输系统的环回控制方法，其中当两个系统的两条传输线路发生故障时，与故障区域相邻的两个站点响应于来自控制站的命令向控制站返回信号 控制站，从而分离故障区域并继续操作。 根据本发明，当控制站检测到两个系统的传输线路出现故障时，它发出广播命令以搜索到两个系统的传输线路的故障点，然后再发送一个环回命令 被发出使得与故障点相邻的站可以环回传输。

公开(公告)号：US5414739A

公开(公告)日：1995-05-09

申请号：US974992

申请日：1992-11-12

申请人： Naoya Kobayashi ,  Yoshitaka Takasaki ,  Sadao Mizokawa ,  Hisayuki Maruyama ,  Hiroshi Mabuchi ,  Eiichi Amada

发明人： Naoya Kobayashi ,  Yoshitaka Takasaki ,  Sadao Mizokawa ,  Hisayuki Maruyama ,  Hiroshi Mabuchi ,  Eiichi Amada

IPC分类号： H04L7/00 ,  H04L7/027 ,  H04L7/033 ,  H04L25/36 ,  H04L25/40

CPC分类号： H04L7/00 ,  H04L7/027 ,  H04L7/033

摘要： A transmission system which includes a plurality of reproduction nodes connected to each other in a cascade connection via a communication line. Each node includes a timing extraction circuit for extracting a timing signal from a signal received via the communication line, a discriminating circuit for converting the received signal into a digital signal according to the timing signal, and a processing circuit for processing, based on the timing signal, the digital signal outputted from the discriminating circuit and outputting the processed digital signal to the communication line. The timing extraction circuit includes a signal delay unit for supplying the timing signal with a signal delay time greater than a delay time occurring in the processing circuit.

摘要翻译： 一种传输系统，包括经由通信线路以级联方式彼此连接的多个再现节点。 每个节点包括定时提取电路，用于从经由通信线路接收的信号中提取定时信号;判别电路，用于根据定时信号将接收信号转换成数字信号;以及处理电路， 信号，从识别电路输出的数字信号并将经处理的数字信号输出到通信线路。 定时提取电路包括用于向定时信号提供大于在处理电路中出现的延迟时间的信号延迟时间的信号延迟单元。

公开(公告)号：US4170715A

公开(公告)日：1979-10-09

申请号：US821340

申请日：1977-08-03

申请人： Sadao Mizokawa

发明人： Sadao Mizokawa

IPC分类号： H03M5/08 ,  H03H7/01 ,  H03M5/12 ,  H04B3/04 ,  H04L25/03 ,  H04L25/49 ,  H04L3/00

CPC分类号： H04L25/03834

摘要： At the transmitting side of a data communication system, data to be transferred is converted to digital pulse-coded transmission data including a combination of two pulse signals whose pulse durations are different from each other. The pulse duration of the digital pulse-coded transmission data is detected to change the amplitude level of the digital pulse-coded transmission data so that the frequency-attenuation characteristic of signals in a transmission path may be compensated in accordance with the detected pulse duration. This modulated transmission data is sent through the transmisson path and is demodulated at the receiving end of the transmission path.

摘要翻译： 在数据通信系统的发送侧，要传送的数据被转换为数字脉冲编码的发送数据，其包括脉冲持续时间彼此不同的两个脉冲信号的组合。 检测数字脉冲编码的发送数据的脉冲持续时间以改变数字脉冲编码的发送数据的幅度电平，使得可以根据检测到的脉冲持续时间来补偿传输路径中的信号的频率衰减特性。 该调制的发送数据通过传输路径发送，并在传输路径的接收端进行解调。