公开(公告)号：US5687013A

公开(公告)日：1997-11-11

申请号：US527379

申请日：1995-09-13

申请人： Naoya Henmi

发明人： Naoya Henmi

IPC分类号： H04J14/00 ,  H04B10/07 ,  H04B10/27 ,  H04B10/272 ,  H04B10/275 ,  H04J14/02 ,  H04L12/28 ,  H04Q11/00 ,  H04B10/00

CPC分类号： H04Q11/0062 ,  H04Q11/0066 ,  H04Q2011/0009 ,  H04Q2011/0013 ,  H04Q2011/0015 ,  H04Q2011/0041 ,  H04Q2011/0045 ,  H04Q2011/0083

摘要： An optical communication scheme is carried out by using a network having a plurality of nodes, a first network medium connected to a first group of the nodes, and a second network medium for transmitting control signals and connected to a second group of nodes. When initiating data transmission, any of the nodes transmits a transmission signal to the first network medium, and a receiving node that has received the signal loops-back the same signal to the second network medium thereby communicating information as to a state of congestion at the receiving node. A network for large volume data transmission can be realized by simple hardware and the state of congestion can be controlled using a simple method.

摘要翻译： 通过使用具有多个节点的网络，连接到第一组节点的第一网络介质和用于发送控制信号并连接到第二组节点的第二网络介质来执行光通信方案。 当发起数据传输时，任何节点向第一网络媒体发送传输信号，接收到信号的接收节点将相同的信号环回到第二网络媒体，从而传送关于第 接收节点。 用于大容量数据传输的网络可以通过简单的硬件实现，并且可以使用简单的方法来控制拥塞状态。

公开(公告)号：US20060193325A1

公开(公告)日：2006-08-31

申请号：US11414415

申请日：2006-05-01

申请人： Kazuo Takagi ,  Naoya Henmi ,  Shinobu Sasaki ,  Kurenai Murakami ,  Motoo Nishihara ,  Yoshinori Rokugou

发明人： Kazuo Takagi ,  Naoya Henmi ,  Shinobu Sasaki ,  Kurenai Murakami ,  Motoo Nishihara ,  Yoshinori Rokugou

IPC分类号： H04L12/28

CPC分类号： H04L1/0061 ,  H04L1/0072 ,  H04L1/0079 ,  H04L1/0085

摘要： A storage circuit defines a first field for storing first header bits of a first payload signal of a first data unit, a second field, and a third field for storing the first payload signal. The first header bits are equal in number to second header bits of a second payload signal of a second data unit. A division circuit divides the first header bits by a generator polynomial to produce a first error check code. The same generator polynomial is used to divide the second header bits to produce a second error check code. A remainder of division of hypothetical header bits by the generator polynomial is summed to the first error check code to produce a sum which is inserted into the second field of the storage circuit. The hypothetical header bits are greater in number than a total number of bits in the first and second fields, so that the first and second data units can be distinguished from each other by different error check results of the first and second data units.

公开(公告)号：US06771907B1

公开(公告)日：2004-08-03

申请号：US09576240

申请日：2000-05-24

申请人： Yuuki Yoshifuji ,  Shuichi Iida ,  Takashi Yamazaki ,  Youko Nakabayashi ,  Shinya Nakamura ,  Kimio Ozawa ,  Naoki Ando ,  Hitoshi Kikuchi ,  Tukasa Haga ,  Hiromitu Watanabe ,  Minoru Shinta ,  Hitoshi Takeshita ,  Shinobu Sasaki ,  Ryou Yamada ,  Naoya Henmi

发明人： Yuuki Yoshifuji ,  Shuichi Iida ,  Takashi Yamazaki ,  Youko Nakabayashi ,  Shinya Nakamura ,  Kimio Ozawa ,  Naoki Ando ,  Hitoshi Kikuchi ,  Tukasa Haga ,  Hiromitu Watanabe ,  Minoru Shinta ,  Hitoshi Takeshita ,  Shinobu Sasaki ,  Ryou Yamada ,  Naoya Henmi

IPC分类号： H04J1400

CPC分类号： H04J14/0295 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： An optical ring system having: a wavelength demultiplexer to which wavelength-multiplexed optical signal to be sent through an optical fiber from a previous node of multiple nodes is input and in which optical signal with each wavelength assigned to itself is demultiplexed; an optical ring device which is disposed in a predetermined node of the multiple nodes to the each wavelength assigned and which is composed of a failure existence judging part which terminates an overhead of each optical signal with a wavelength demultiplexed by the wavelength demultiplexer and judges whether a failure occurs in regard to a wavelength in a previous section through which optical signal with the assigned wavelength is sent, and a switching part which, when the failure existence judging means determines the occurrence of failure, selects a path that allows optical signal with the wavelength to be transmitted to the previous node while avoiding the previous section incurring the failure; and a wavelength multiplexer which multiplexes optical signal to be output from the optical ring part and then outputs it to an optical fiber connected to a next node.

摘要翻译： 一种光环系统，具有波长解复用器，通过来自多个节点的先前节点的光纤输入波分复用光信号，其中分配有每个波长的光信号被解复用; 光环设备，被布置在多个节点的预定节点到分配的每个波长，并且由故障存在判断部分组成，故障存在判断部分终止由波长解复用器解复用的波长的每个光信号的开销，并判断是否 关于发送了具有指定波长的光信号的先前部分中的波长发生故障，以及当故障存在判断装置确定故障发生时，选择允许具有波长的光信号的路径的切换部分 被发送到上一个节点，同时避免前一个部分发生故障; 以及多路复用从光环部分输出的光信号，然后将其输出到连接到下一个节点的光纤。

公开(公告)号：US06441935B1

公开(公告)日：2002-08-27

申请号：US09210277

申请日：1998-12-11

申请人： Soichiro Araki ,  Yoshihiko Suemura ,  Akio Tajima ,  Seigo Takahashi ,  Yoshiharu Maeno ,  Naoya Henmi

发明人： Soichiro Araki ,  Yoshihiko Suemura ,  Akio Tajima ,  Seigo Takahashi ,  Yoshiharu Maeno ,  Naoya Henmi

IPC分类号： H04J1408

CPC分类号： H04Q11/0001 ,  H04L49/25 ,  H04L49/30 ,  H04L49/50 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0045 ,  H04Q2011/005

摘要： An optical packet exchange apparatus and an optical switch in which search for a connection pattern between an input unit devoid of a packet to be transmitted and an output unit devoid of a packet to be received is reduced to enable fast switch control even in cases wherein the number of channels of the exchange apparatus is increased or network speed is higher. A plurality of input units, a plurality of output units and an optical switch are provided. Each input unit includes an input buffer unit, a parallel/serial conversion unit, an electrical/optical conversion unit, and a dummy packet insertion unit for sending a dummy packet if there is no packet to be transmitted. Each output unit includes an exchange counterpart contention resolution unit for controlling the exchange counterpart, an optical/electrical conversion unit, a serial/parallel conversion unit, and a packet eliminating unit. The exchange counterpart contention resolution unit controls the packet eliminating unit to eliminate a dummy packet.

公开(公告)号：US6125104A

公开(公告)日：2000-09-26

申请号：US918352

申请日：1997-08-26

申请人： Tatsuya Shiragaki ,  Naoya Henmi

发明人： Tatsuya Shiragaki ,  Naoya Henmi

IPC分类号： H04B10/077 ,  H04B10/079 ,  H04B10/27 ,  H04B17/00 ,  H04J3/14 ,  H04J14/02 ,  H04Q11/00 ,  H04Q11/04 ,  H04J1/16

CPC分类号： H04J14/0227 ,  H04J3/14 ,  H04Q11/0001 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q11/04 ,  H04J14/0226 ,  H04J14/0295 ,  H04J2203/0041 ,  H04J2203/0057 ,  H04Q11/0071 ,  H04Q2011/0081 ,  H04Q2011/0088

摘要： A network node comprises a cross-connect switch and a single signal quality monitor connected to one of the output ports of the cross-connect switch. The switch is controlled by a processor to establish connections. The processor is responsive to a request message from another network node for causing the switch to establish a connection between one of the input ports of the switch specified by the request message and the signal quality monitor and returns a reply message indicating a quality level of a signal appearing at the input port. A switched telecommunications network, such as Internet, may be used for transmission of the request and reply messages. Alternatively, the request and reply messages may be multiplexed with traffic signals.

摘要翻译： 网络节点包括交叉连接交换机和连接到交叉连接交换机的输出端口之一的单个信号质量监视器。 交换机由处理器控制以建立连接。 处理器响应于来自另一网络节点的请求消息，用于使交换机建立由请求消息指定的交换机的输入端口中的一个与信号质量监视器之间的连接，并返回指示质量水平的回复消息 信号出现在输入端口。 诸如因特网的交换电信网络可以用于传送请求和回复消息。 或者，请求和应答消息可以与业务信号复用。

公开(公告)号：US6115517A

公开(公告)日：2000-09-05

申请号：US111399

申请日：1998-07-07

申请人： Tatsuya Shiragaki ,  Naoya Henmi

发明人： Tatsuya Shiragaki ,  Naoya Henmi

IPC分类号： H04B10/00 ,  H04B10/07 ,  H04B10/27 ,  H04B10/291 ,  H04J14/02 ,  H04Q3/52 ,  H04Q11/00 ,  G02B6/28

CPC分类号： H04Q11/0005 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04Q2011/0011 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0058

摘要： An optical communication network node apparatus including input terminals 111 to 11n, 1:2 optical branch units 121 to 12n, a pass-through optical switching network d101, 2:1 optical connectors 151 to 15n, output terminals 171 to 17n, a drop optical switching network 102, output interfaces 13-1 to 13-mn, input interfaces 14-1 to 14-mn and an insert optical switching network. Accordingly, in the optical communication network node apparatus, various types of optical switching networks are separated from one another and each optical switching network supports only a necessary switching state, so that the number of optical switch elements can be reduced.

摘要翻译： 一种光通信网络节点装置，包括输入端子111至11n，1：2光分支单元121至12n，直通光交换网络d101,2:1光连接器151至15n，输出端171至17n，液滴光 交换网络102，输出接口13-1至13-mn，输入接口14-1至14-mn和插入光交换网络。 因此，在光通信网络节点装置中，各种类型的光交换网络彼此分离，并且每个光交换网络仅支持必要的切换状态，从而可以减少光开关元件的数量。

公开(公告)号：US6061156A

公开(公告)日：2000-05-09

申请号：US16306

申请日：1998-01-30

申请人： Hitoshi Takeshita ,  Naoya Henmi

发明人： Hitoshi Takeshita ,  Naoya Henmi

IPC分类号： G02B6/00 ,  G02B6/122 ,  H04B10/03 ,  H04B10/032 ,  H04B10/079 ,  H04B10/2507 ,  H04B10/27 ,  H04B10/294 ,  H04B10/299 ,  H04M3/18 ,  H04Q3/52 ,  H04Q11/00 ,  H04J14/00 ,  H04J4/00 ,  H04J14/02 ,  H04J14/08

CPC分类号： H04Q11/0005 ,  H04Q2011/0011 ,  H04Q2011/0015 ,  H04Q2011/0043 ,  H04Q2011/0045 ,  H04Q2011/0052

摘要： In an optical transmission system comprising an optical branch unit, first through fourth OR/OS pairs each of which includes optical receiver and optical transmitter, optical switch devices for active and standby systems, each of the optical switch devices having an N number of input ports and M number of output ports; and an optical multiplexer for multiplexing an M number of optical signal supplied from the third OR/OS pair and an M number of optical signals supplied from the fourth OR/OS pair to produce an M number of optical signals, the optical switch devices and the first through the fourth OR/OS pairs have a 3-dB margin with respect to the input optical strength. First and second paths are each adjusted such that the time required for transmitting an optical signal is identical for all paths. The first path is from an output port of the optical branch unit to the point where the optical signals are multiplexed in the optical multiplexer via the first and the third OR/OS pairs, and the optical switch device for the active system. The second path is from an output port of the optical branch unit to the point where the optical signals are multiplexed in the optical multiplexer via the second and the fourth OR/OS pairs, and the optical switch device for the standby system.

摘要翻译： 在包括光分支单元的光传输系统中，第一到第四OR / OS对，其中每一个包括光接收器和光发射器，用于主动和待机系统的光开关装置，每个光开关装置具有N个输入端口 和M个输出端口; 以及光复用器，用于复用从第三OR / OS对提供的M个光信号和从第四OR / OS对提供的M个光信号，以产生M个光信号，光开关器件和 首先通过第四个OR / OS对相对于输入光强度具有3-dB的余量。 每个调整第一和第二路径，使得发送光信号所需的时间对于所有路径是相同的。 第一路径是从光分支单元的输出端口到光信号经由第一和第三OR / OS对复用在光复用器中的点，以及用于主动系统的光开关装置。 第二路径是从光分支单元的输出端口到光信号经由第二和第四OR / OS对复用在光复用器中的点，以及备用系统的光开关器件。

公开(公告)号：US5812290A

公开(公告)日：1998-09-22

申请号：US764484

申请日：1996-12-12

申请人： Yoshiharu Maeno ,  Yoshihiko Suemura ,  Naoya Henmi

发明人： Yoshiharu Maeno ,  Yoshihiko Suemura ,  Naoya Henmi

IPC分类号： H04B10/27 ,  H04B10/077 ,  H04B10/29 ,  H04Q11/00 ,  H04B10/12 ,  H04B10/24

CPC分类号： H04Q11/0062 ,  H04Q2011/0039 ,  H04Q2011/0043 ,  H04Q2011/0047 ,  H04Q2011/0081 ,  H04Q2011/0083

摘要： The present invention provides means by which a switch controller that manages lines directly notifies receivers of ineffectiveness of received data upon line disconnection instead of any transmitter indirectly notifying receivers; and according to the invention, an optical transmitter is provided within the optical switching unit, and a switch controller controls the optical transmitter within the optical switching unit and an optical switch having at its input ports one or more dummy ports capable of multicast-transmission. According to this control, upon line disconnection, receivers are connected to the optical transmitter within the optical switching unit that transmits control code in real time, thereby preventing receivers from receiving ineffective data and obviating superfluous signal lines and communication processes between the switch controller and transmitters.

摘要翻译： 本发明提供了一种管理线路的开关控制器直接通知接收机线路断开时接收数据无效而不是任何发射机间接通知接收机的装置; 并且根据本发明，在光学开关单元内提供光发射器，并且开关控制器控制光开关单元内的光发射机，以及在其输入端口具有能够进行组播传输的一个或多个虚拟端口的光开关。 根据该控制，在线路断开时，接收机连接到实际发送控制码的光交换单元内的光发射机，从而防止接收机收到无效数据，消除交换控制器与发射机之间的多余信号线和通信过程 。

公开(公告)号：US5757526A

公开(公告)日：1998-05-26

申请号：US758381

申请日：1996-11-29

申请人： Tatsuya Shiragaki ,  Naoya Henmi

发明人： Tatsuya Shiragaki ,  Naoya Henmi

IPC分类号： H04J14/00 ,  H04B10/032 ,  H04B10/038 ,  H04B10/07 ,  H04B10/077 ,  H04B10/079 ,  H04B10/27 ,  H04B10/291 ,  H04J14/02 ,  H04Q3/52 ,  H04Q11/00 ,  H04B10/08

CPC分类号： H04B10/0771 ,  H04B10/0773 ,  H04Q11/0062 ,  H04B2210/078 ,  H04Q2011/0069 ,  H04Q2011/0083

摘要： An optical communication network for quickly detecting faults and rerouting data using the optical signals in their light form, superimposes a monitoring signal on an optical data signal. The optical data signal and the monitoring signal are superimposed by, for example, wavelength-multiplexing or polarization-multiplexing. A receiving node receives the superimposed signal and splits it back into the optical data signal and the monitoring signal. A processor in the receiving node analyzes the monitoring signal to determine whether a fault exists in the transmission path. Similarly, the processor can analyze the data signal to determine whether a fault exists in a previous node or repeater. Once a fault is detected, the signal can be quickly rerouted (detoured) around the faulty section (node).

摘要翻译： 一种光通信网络，用于以光形式快速检测故障并重新路由数据，将监控信号叠加在光数据信号上。 光数据信号和监视信号通过例如波分复用或偏振复用叠加。 接收节点接收叠加信号并将其分解回光数据信号和监视信号。 接收节点中的处理器分析监视信号以确定传输路径中是否存在故障。 类似地，处理器可以分析数据信号以确定先前节点或中继器中是否存在故障。 一旦检测到故障，信号可以在故障部分（节点）周围快速重新路由（绕路）。

公开(公告)号：US5675428A

公开(公告)日：1997-10-07

申请号：US565935

申请日：1995-12-01

申请人： Naoya Henmi

发明人： Naoya Henmi

IPC分类号： G02F1/35 ,  G02F2/00 ,  H04B10/2507 ,  H04B10/2525 ,  H04B10/2531 ,  H04B10/00

CPC分类号： H04B10/2531

摘要： It is an object of the invention to provide an optical communication system, which suppresses wave distortions of signal light waves arisen from group velocity dispersion of a transmission line. The optical communication apparatus comprises optical transmitter 100 and optical transmission lines, which consist of optical fibers. The optical transmitter transmits signal and probe light waves simultaneously, and spectrum-inverted wave is generated by nonlinear interaction between the two said waves in the optical nonlinear section. The spectrum inverted wave behaves as a phase conjugated wave, and wave distortion arisen from dispersion of a line can be remarkable decreased when a signal light wave arrives at the terminal of a line. The optical transmitter comprises two light wave sources for signal and probe light waves, and thereby wavelength separation and polarizations of these waves can be stabilized without difficulty.

摘要翻译： 本发明的目的是提供一种光通信系统，其抑制由传输线的组速度色散引起的信号光波的波形失真。 光通信装置包括由光纤组成的光发射机100和光传输线。 光发射机同时发射信号和探测光波，并且通过光学非线性部分中的两个所述波之间的非线性相互作用产生频谱反转波。 频谱反相波作为相位共轭波，当信号光波到达线的末端时，线的色散产生的波形失真可以显着降低。 光发射机包括用于信号和探测光波的两个光波源，从而可以稳定地稳定这些波长的波长分离和极化。