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    COMMUNICATION SYSTEM, NODE DEVICE AND METHOD FOR SETTING CLASSES OF SERVICE
    21.
    发明申请
    COMMUNICATION SYSTEM, NODE DEVICE AND METHOD FOR SETTING CLASSES OF SERVICE 审中-公开
    通信系统，节点设备和用于设置服务类别的方法

    公开(公告)号：US20080232385A1

    公开(公告)日：2008-09-25

    申请号：US12053752

    申请日：2008-03-24

    申请人： YOSHIHIKO SUEMURA ,  Masahiro Sakauchi ,  Atsushi Iwata

    发明人： YOSHIHIKO SUEMURA ,  Masahiro Sakauchi ,  Atsushi Iwata

    IPC分类号： H04L12/56

    CPC分类号： H04L47/2491 ,  H04L12/4637 ,  H04L47/10 ,  H04L47/11 ,  H04L47/2458

    摘要： A communication system comprises a plurality of packet rings, each composed of a plurality of node devices, the node devices each transmitting and receiving a packet and being interconnected in a ring; two of the packet rings being interconnected via a pair of node devices each in each of the packet rings; the communication system further comprising: a table having recorded therein the correspondence between inter-ring service classes set between the packet rings and intra-ring service classes set in each packet ring; wherein the packet transferred in the packet ring includes information on the intra-ring service classes, as intra-ring header information, and information on the inter-ring service class, as inter-ring header information, the inter-ring service class(es) being correlated with the intra-ring service class(es), and being determined based on the table; the intra-ring header information being deleted when the packet is transferred from one of the packet rings to another.

    摘要翻译： 通信系统包括多个分组环，每个分组环由多个节点设备组成，所述节点设备各自发送和接收分组并以环形互连; 两个分组环经由每个分组环中的一对节点设备互连; 所述通信系统还包括：在其中记录了在分组环之间设置的环际间服务类别与在每个分组环中设置的环内服务类别之间的对应关系的表; 其中，所述分组环中传送的分组包括作为环形内的业务类别的信息，作为环内报头信息，以及环际业务类别信息，作为环际间报头信息，环际业务类 ）与环内服务类相关，并且基于该表来确定; 当分组从分组环中的一个传送到另一个分组环时，环内报头信息被删除。

    Link Property Setting Method, Route Calculating Method And System Using The Same
    22.
    发明申请
    Link Property Setting Method, Route Calculating Method And System Using The Same 失效
    链接属性设置方法，路由计算方法和系统使用方法

    公开(公告)号：US20070211732A1

    公开(公告)日：2007-09-13

    申请号：US11578418

    申请日：2005-04-14

    申请人： Yoshihiko Suemura

    发明人： Yoshihiko Suemura

    IPC分类号： H04L12/56

    CPC分类号： H04L45/00 ,  H04L45/28

    摘要： A method of setting shared risk link group identification information (SRLG ID) which is one of link properties employed for calculating a route for a path in a communications network including nodes and links for interconnecting the nodes, and indicates a link group which shares resources, comprises the step of assigning a number of SRLG IDs to the link group in accordance with a failure rate of resources shared by that link group. A route calculating method for calculating routes for a working path and a standby path comprises the step of calculating the routes such that a minimum number of SRLG IDs duplicate between all links on the route of the working path and all links on the route of the standby path.

    摘要翻译： 一种设置共享风险链路组识别信息（SRLG ID）的方法，该共享风险链路组识别信息是用于计算包括用于互连节点的节点和链路的通信网络中的路径的路由的链路属性之一，并且指示共享资源的链路组， 包括根据该链路组共享的资源的故障率向链路组分配多个SRLG ID的步骤。 用于计算工作路径和备用路径的路由的路由计算方法包括以下步骤：计算路由，使得最小数量的SRLG ID在工作路径的路由上的所有链路与备用路由上的所有链路之间重复 路径。

    Optical receiving circuit and optical communication device
    23.
    发明授权
    Optical receiving circuit and optical communication device 失效
    光接收电路和光通信设备

    公开(公告)号：US06760552B1

    公开(公告)日：2004-07-06

    申请号：US09532420

    申请日：2000-03-23

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

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

    IPC分类号： H04B1006

    CPC分类号： H04B10/6931

    摘要： An optical receiving circuit 1 is composed of a preamplifier circuit 2, an output differential amplifier 3 and a mean value holding circuit 4. The optical receiving circuit 1 is connected to a photodetector 5 for receiving an input optical signal and outputting current. For the preamplifier circuit 2, a transimpedance type circuit may also be used. The preamplifier circuit 2 comprises a feedback resistor 21 and a resistor for detecting output voltage 22, the transimpedance gain is 55 dB &OHgr; and 3 dB bandwidth when the photodetector 5 the capacity of which is 0.2 pF is connected to its output is 8 GHz. The output differential amplifier 3 discriminates and regenerates data by regulating reference voltage Vref between the high level and the low level of the amplitude of an input signal. The mean value holding circuit 4 includes a sample-hold circuit 41 and capacity 42 for holding the mean value of voltage output from the preamplifier circuit 2. As a CR time constant based upon the capacity 42 and the resistor for detection 22 is 1 ns., the mean value level of a received signal can be detected in approximately one byte of the data of 10 Gb/s. The sample-hold circuit 41 samples the detected mean value level according to a sampling pulse from an external device and holds it. The output of the sample-hold circuit 41 is used for the reference voltage of the differential amplifier 3.

    摘要翻译： 光接收电路1由前置放大电路2，输出差分放大器3和平均值保持电路4组成。光接收电路1连接到用于接收输入光信号并输出​​电流的光电检测器5。 对于前置放大器电路2，也可以使用跨阻型电路。 前置放大器电路2包括反馈电阻器21和用于检测输出电压22的电阻器，当其电容为0.2pF的光电检测器5连接到其输出端时，跨阻增益为55dBΩ和3dB带宽为8GHz。 输出差分放大器3通过调节输入信号的幅度的高电平和低电平之间的参考电压Vref来识别和再生数据。 平均值保持电路4包括采样保持电路41和用于保持从前置放大器电路2输出的电压的平均值的电容42.由于基于电容42和检测电阻22的CR时间常数为1ns。 可以在10Gb / s的数据的大约一个字节中检测接收信号的平均值电平。 采样保持电路41根据来自外部设备的采样脉冲对检测到的平均值电平进行采样并保持。 采样保持电路41的输出用于差分放大器3的参考电压。

    Optical network
    24.
    发明授权
    Optical network 失效
    光网络

    公开(公告)号：US06429955B1

    公开(公告)日：2002-08-06

    申请号：US09218102

    申请日：1998-12-22

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

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

    IPC分类号： H04J1402

    CPC分类号： H04Q11/0001

    摘要： Disclosed is an optical network which has: wavelength tunable optical transmitters of number MN, where N is an integer of two or more, each of which outputs an optical signal with arbitrary one of M wavelengths &lgr;1, &lgr;2, . . . , &lgr;M, where M is an integer of two or more, that are different from one another; a MN×N optical switch whose input ports are connected to the respective wavelength tunable optical transmitters of number MN, and which allows optical signals input to different input ports to be output form its same output port; 1×M optical wavelength demultiplexers of number N which output demultiplexing optical signal with wavelengths &lgr;1, &lgr;2, . . . , &lgr;M input from output ports of the MN×N optical switch into each wavelength; and optical receivers of number MN which receive optical signals input from the 1×M optical wavelength demultiplexers of number N.

    摘要翻译： 公开了一种光网络，其具有：号MN的波长可调光发射机，其中N是两个或更多个的整数，每个都输出具有M个波长lambd1，lambd2的任意一个的光信号。 。 。 ，lambdM，其中M是两个或更多个彼此不同的整数; 一个MNxN光开关，其输入端口连接到MN号的各波长可调光发射机，并允许输入到不同输入端口的光信号从其相同的输出端口输出; 数字N的1xM光学波长解复用器，其输出具有波长lambd1，lambd2的解复用光信号。 。 。 ，将MNxN光开关的输出端口的lambdM输入到每个波长; 数字MN的光接收器接收从数字N的1MM光波分复用器输入的光信号。

    Datalink system and communication network
    26.
    发明授权
    Datalink system and communication network 失效
    数据链系统和通信网络

    公开(公告)号：US6081557A

    公开(公告)日：2000-06-27

    申请号：US857807

    申请日：1997-05-16

    申请人： Yoshihiko Suemura ,  Naoya Henmi

    发明人： Yoshihiko Suemura ,  Naoya Henmi

    IPC分类号： H04L7/00 ,  G06F13/40 ,  H04L27/00

    CPC分类号： G06F13/4022

    摘要： Disclosed are a datalink system, which has: a data transmission system which is composed of a parallel-to-serial converter which converts a parallel signal into a serial signal, a data transmission line which transmits the serial signal output from the parallel-to-serial converter and a serial-to-parallel converter which converts the serial signal transmitted through the data transmission line into the parallel signal; and a control signal transmission system which is composed of a control signal transmission line and lies in parallel with the data transmission system, and a communication network which has a data network and a control signal network.

    摘要翻译： 公开了一种数据链路系统，其具有：数据传输系统，其由将并行信号转换为串行信号的并行到串行转换器组成;数据传输线，其从并行 - 串行转换器发送串行信号， 串行转换器和串行到并行转换器，其将通过数据传输线传输的串行信号转换成并行信号; 以及由控制信号传输线构成并与数据传输系统并联的控制信号传输系统，以及具有数据网络和控制信号网络的通信网络。

    Optical wavelength tunable filter
    27.
    发明授权
    Optical wavelength tunable filter 失效
    光波长可调滤波器

    公开(公告)号：US5506920A

    公开(公告)日：1996-04-09

    申请号：US188027

    申请日：1994-01-28

    申请人： Yoshihiko Suemura ,  Naoya Henmi ,  Akio Tajima ,  Haruo Takahashi ,  Hiroyuki Morimura

    发明人： Yoshihiko Suemura ,  Naoya Henmi ,  Akio Tajima ,  Haruo Takahashi ,  Hiroyuki Morimura

    IPC分类号： G01J3/26 ,  G02B5/28 ,  G02B7/00 ,  H01L41/09 ,  G02B6/26

    CPC分类号： G02B26/007 ,  H02N2/046

    摘要： An optical filter having a transmission wavelength to be tuned dependent on light incident angle is rotatively provided in a collimated light path. The optical filter is rotated by the displacement of a piezoelectric actuator by a structure in which the displacement is converted to the rotation of the optical filter. The converting structure comprises a displacement magnifying mechanism for magnifying the displacement to provide the magnified displacement and a motion converting mechanism for converting the magnified displacement to the rotation of the optical filter.

    摘要翻译： 具有根据光入射角调谐的透射波长的滤光器在准直光路中可旋转地设置。 滤光器通过压电致动器的位移而旋转，其结构是将位移转换为滤光器的旋转。 转换结构包括用于放大位移以提供放大位移的位移放大机构和用于将放大位移转换为滤光器的旋转的运动转换机构。