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    Broad band switching network
    1.
    发明授权
    Broad band switching network 失效
    宽带交换网络

    公开(公告)号：US5493573A

    公开(公告)日：1996-02-20

    申请号：US703519

    申请日：1991-05-20

    申请人： Hiroshi Kobayashi ,  Kunihiko Sekiya ,  Yoshihiro Hidaka ,  Kazuo Aida ,  Michiaki Okano ,  Shigenobu Minami ,  Takashi Ikeda ,  Shoichiro Yamasaki ,  Hideaki Haruyama ,  Kazuyoshi Ozawa

    发明人： Hiroshi Kobayashi ,  Kunihiko Sekiya ,  Yoshihiro Hidaka ,  Kazuo Aida ,  Michiaki Okano ,  Shigenobu Minami ,  Takashi Ikeda ,  Shoichiro Yamasaki ,  Hideaki Haruyama ,  Kazuyoshi Ozawa

    IPC分类号： H04L12/801 ,  H04L12/911 ,  H04Q11/04 ,  H04L12/52

    CPC分类号： H04L49/3081 ,  H04L49/254 ,  H04L49/505 ,  H04L49/55 ,  H04Q11/0492 ,  H04L2012/5609 ,  H04L2012/562 ,  H04L2012/5626 ,  H04L2012/5632 ,  H04L2012/5678 ,  H04L49/10

    摘要： Since a transmission route is set in accordance with the number of relaying broad band switching nodes present between two terminating nodes of a plurality of broad band switching nodes, a through-put characteristic, an affecting degree due to occurrence of a defect, the traffic of the entire network is distributed. In addition, when the system is started up, transmission routes with a minimum band width necessary for routing control have been set in all the broad band switching nodes. Whenever a call takes place, a transmission route is set and the band width is variably set by using an intelligent inference mechanism. Moreover, an intelligent distributed control for distributing such an intelligent inference mechanism in the broad band switching nodes is used. Thus, the load of processing a call can be decreased, while the reliability of the network and the improvement of the operating efficiency can be achieved. Furthermore, since the private branch system interface uses a frame which consists of a control window area for controlling its transmission and a cell multiplexing area for multiplexingly transmitting cells, bidirectional transmission between the broad band switching node and a plurality of terminal equipments can be achieved with a single extension transmission line. In addition, since a frame construction which satisfies the ATM method is used, different information transmission speeds can be flexibly selected.

    摘要翻译： 由于根据存在于多个宽带交换节点的两个终止节点之间的中继宽带交换节点的数量来设置传输路由，因此产生通过特性，由于缺陷发生的影响程度， 整个网络都是分布式的。 此外，当系统启动时，已经在所有宽带交换节点中设置了具有路由控制所需的最小带宽的传输路由。 每当发生呼叫时，设置传输路由，并且通过使用智能推理机制可变地设置带宽。 此外，使用用于在宽带交换节点中分发这种智能推理机制的智能分布式控制。 因此，可以降低处理呼叫的负担，同时可以实现网络的可靠性和提高操作效率。 此外，由于专用分支系统接口使用由用于控制其发送的控制窗口区域和用于多路复用发送小区的小区复用区域组成的帧，所以可以通过以下方式实现宽带交换节点与多个终端设备之间的双向传输： 单个扩展传输线。 此外，由于使用满足ATM方式的帧结构，因此可以灵活地选择不同的信息传输速度。

    Broadband switching networks
    5.
    发明授权
    Broadband switching networks 失效
    宽带交换网络

    公开(公告)号：US06985487B1

    公开(公告)日：2006-01-10

    申请号：US09722732

    申请日：2000-11-28

    申请人： Hiroshi Kobayashi ,  Yoshiharu Hidaka ,  Kazuo Aida ,  Takashi Ikeda ,  Motomitsu Yano ,  Kouichirou Kamura

    发明人： Hiroshi Kobayashi ,  Yoshiharu Hidaka ,  Kazuo Aida ,  Takashi Ikeda ,  Motomitsu Yano ,  Kouichirou Kamura

    IPC分类号： H04L12/28

    CPC分类号： H04L49/205 ,  H04L12/5601 ,  H04L2012/5631 ,  H04L2012/5636 ,  H04L2012/5649 ,  H04L2012/568

    摘要： Broadband switching networks are disclosed, which has a plurality of broadband switch nodes and a broadband switch inter-node transmission line for connecting the plurality of broadband switch nodes, information being transmitted by cells, each of which comprises a header and an information field, wherein the broadband switch node comprises a broadband input and output port for inputting and outputting the cells to and from the broadband inter-node transmission line, and a switch for separating the cells being input through the broadband input and output port and for multiplexing the cells so as to output them, wherein data composed of the plurality of cells is transmitted and received through the broadband switch node by constant bit rate transmission, variable bit rate transmission, or a combination of the constant bit rate transmission and the variable bit rate transmission.

    摘要翻译： 公开了宽带交换网络，其具有多个宽带交换节点和用于连接多个宽带交换节点的宽带交换机节点间传输线，由小区正在发送的信息，每个信息包括报头和信息字段，其中 宽带交换机节点包括用于向和从宽带节点间传输线路输入和输出小区的宽带输入和输出端口，以及用于分离通过宽带输入和输出端口输入的小区并用于复用小区的开关 为了输出它们，其中通过固定位速率传输，可变比特率传输或恒定比特率传输和可变比特率传输的组合，通过宽带交换节点来发送和接收由多个小区组成的数据。

    Method and apparatus for monitoring noise figure of optical amplifier
    6.
    发明授权
    Method and apparatus for monitoring noise figure of optical amplifier 失效
    用于监测光放大器噪声系数的方法和装置

    公开(公告)号：US5471334A

    公开(公告)日：1995-11-28

    申请号：US139227

    申请日：1993-10-19

    申请人： Hiroji Masuda ,  Kazuo Aida ,  Kiyoshi Nakagawa

    发明人： Hiroji Masuda ,  Kazuo Aida ,  Kiyoshi Nakagawa

    IPC分类号： H04B10/073 ,  H04B10/077 ,  H04B10/079 ,  H04B10/291 ,  H04B17/00

    CPC分类号： H04B10/0731 ,  H04B10/077 ,  H04B10/07955 ,  H04B10/291 ,  H04B2210/003

    摘要： A method and an apparatus for monitoring the noise figure of an optical amplifier such as used in linear repeaters in an optical transmission system formed by cascaded linear repeaters. The apparatus includes at least one optical amplifier for amplifying input signal light and a narrow bandwidth optical filter for removing amplified spontaneous emission (ASE) light generated at the optical amplifier. A gain detector is provided to detect the gain of the optical amplifier and an ASE optical power detector detects an optical power of the ASE light generated at the optical amplifier. The apparatus includes a splitter for splitting light entering into the narrow bandwidth optical filter and a local oscillator for generating local light having a wavelength displaced from a wavelength of the input signal light. The light split by the splitter is coupled with the local light generated by the local oscillator. An optical power detector makes a heterodyne detection of the optical power of the coupled light. An electrical band-pass filter extracts the optical power of the ASE light generated by the optical amplifier from the optical power obtained by the optical power detector. A noise figure calculator calculates the noise figure according to the gain detected by the gain detector and the optical power of the ASE light detected by the ASE optical power detector.

    摘要翻译： 一种用于监测光放大器的噪声系数的方法和装置，例如在由级联线性转发器形成的光传输系统中用于线性中继器中。 该装置包括用于放大输入信号光的至少一个光放大器和用于去除在光放大器处产生的放大的自发发射（ASE）光的窄带宽滤光器。 提供增益检测器来检测光放大器的增益，并且ASE光功率检测器检测在光放大器处产生的ASE光的光功率。 该装置包括用于分离进入窄带宽滤光器的光的分离器和用于产生具有从输入信号光的波长偏移的波长的局部光的本地振荡器。 由分路器分开的光与由本地振荡器产生的局部光耦合。 光功率检测器对耦合光的光功率进行外差检测。 电带通滤波器从由光功率检测器获得的光功率中提取由光放大器产生的ASE光的光功率。 噪声系数计算器根据由增益检测器检测的增益和由ASE光功率检测器检测到的ASE光的光功率计算噪声系数。

    Program counter display device
    8.
    发明授权
    Program counter display device 失效
    程序计数器显示装置

    公开(公告)号：US5021948A

    公开(公告)日：1991-06-04

    申请号：US31280

    申请日：1987-03-30

    申请人： Yasuko Nakayama ,  Kazuo Aida

    发明人： Yasuko Nakayama ,  Kazuo Aida

    IPC分类号： G06F11/32 ,  G06F11/36

    CPC分类号： G06F11/3664 ,  G06F11/3636

    摘要： A program counter display device having a program memory which stores a source program. An interpreter reads out the source program from the program memory and executing it. A program list generator generates a program list of the program stored in the program memory, and a program flow monitor having knowledge of the program flow determines the program flow in accordance with the statement currently being executed. A control structure monitor correlates the current statement supplied from the interpreter with a program control structure, and checks the balance of the program control structure such as the existence of an end in a loop structure, the existence of a destination of a branch sentence, etc. A program counter-mark generator connected to the program flow monitor and the control structure monitor generates a program counter mark indicating the program counter function, the program flow, and the control sturcture. A display device connects to the program list generator and to the program counter mark generator and displays the program counter mark in association with the program list. The program counter mark is constituted by a box section which is displayed over the range of the program list included in the program control structure. A direction-indicating section is displayed within the box section, and indicates which statement is currently being executed, and also the direction of program flow. When the arrow of the direction-indicating section is pointing right, the arrow is pointing to the current statement; when the arrow is pointing upward or downward, the arrow is indicating the program flow.

    摘要翻译： 具有存储源程序的程序存储器的程序计数器显示装置。 解释器从程序存储器中读出源程序并执行它。 程序列表生成器生成存储在程序存储器中的程序的程序列表，具有程序流程知识的程序流程监视器根据当前执行的语句确定程序流程。 控制结构监视器将从解释器提供的当前语句与程序控制结构相关联，并且检查程序控制结构的平衡，例如循环结构中的结尾的存在，分支句的目的地的存在等 连接到程序流程监视器和控制结构监视器的程序计数器生成器产生指示程序计数器功能，程序流程和控制结构的程序计数器标记。 显示装置连接到程序列表发生器和程序计数器标记发生器，并与程序列表相关联地显示程序计数器标记。 程序计数器标记由在程序控制结构中包括的程序列表的范围上显示的框部分构成。 方向指示部分显示在框部分内，并指示当前正在执行的语句，以及程序流程的方向。 当方向指示部分的箭头指向右边时，箭头指向当前语句; 当箭头向上或向下指向时，箭头指示程序流。

    Optical fiber amplifier
    9.
    发明授权
    Optical fiber amplifier 失效
    光纤放大器

    公开(公告)号：US5633750A

    公开(公告)日：1997-05-27

    申请号：US641218

    申请日：1996-04-30

    申请人： Seiji Nogiwa ,  Kazuo Aida ,  Kiyoshi Nakagawa

    发明人： Seiji Nogiwa ,  Kazuo Aida ,  Kiyoshi Nakagawa

    IPC分类号： G02F1/35 ,  H01S3/06 ,  H01S3/07 ,  H01S3/13 ,  H01S3/131 ,  H01S3/16 ,  H01S3/00

    CPC分类号： H01S3/1301 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/1608

    摘要： The invention offers an optical fiber amplifier with good frequency characteristics which allows the gain to be held constant even without an input signal beam and allows gain control with respect to input optical signals with high-speed power fluctuations. An excitation beam source 8 supplies an excitation beam for light amplification and a control beam source 15 supplies a control beam for controlling the gain to an EDF 4 which amplifies a signal beam by means of optical excitation. An excitation beam monitor 9 measures the power of the excitation beam when inputted to the EDF 4 and an excitation beam monitor 12 measures the power of the excitation beam when outputted from the EDF 4. A comparator 11 calculates the ratio between the power measured by the excitation beam monitor 9 and the power measured by the excitation beam monitor 12. A drive circuit 14 controls the power of the control beam supplied by the control beam source 15 based on the results obtained by the comparator 11.

    摘要翻译： 本发明提供了具有良好频率特性的光纤放大器，其允许即使没有输入信号光束也可以将增益保持为恒定，并且允许相对于具有高速功率波动的输入光信号的增益控制。 激励光束源8提供用于光放大的激励光束，并且控制光束源15将控制光束提供给EDF 4，EDF 4通过光激励来放大信号光束。 激励光束监视器9在输入到EDF 4时测量激发光束的功率，激励光束监视器12在从EDF 4输出时测量激励光束的功率。比较器11计算由 激励光束监视器9和由激励光束监视器12测量的功率。驱动电路14基于由比较器11获得的结果来控制由控制光束源15提供的控制光束的功率。

    Noise measurement for optical amplifier and a system therefor
    10.
    发明授权
    Noise measurement for optical amplifier and a system therefor 失效
    光放大器的噪声测量及其系统

    公开(公告)号：US5521751A

    公开(公告)日：1996-05-28

    申请号：US387077

    申请日：1995-02-13

    申请人： Kazuo Aida ,  Yoshiaki Sato

    发明人： Kazuo Aida ,  Yoshiaki Sato

    IPC分类号： G01M11/00 ,  H01L21/66 ,  H01S3/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10

    CPC分类号： H04B10/0731 ,  H01S3/06754 ,  H04B10/07 ,  H01S2301/02

    摘要： A method and a system for measuring a noise figure of an optical amplifier which independently detects two different output powers generated from the optical amplifier under measurement. The generation of the first output power is in synchronization with a space period of an input optical pulsed signal, while the generation of the second output power is in synchronization with the mark period of the input optical pulsed signal. The-optical pulsed signal is an intensity-modulated signal given at a repetition period which is sufficiently shorter than the life time of carriers or the life time of ions in a metastable level of the optical amplifier under measurement.

    摘要翻译： 一种用于测量光放大器的噪声系数的方法和系统，其独立地检测从测量的光放大器产生的两种不同的输出功率。 第一输出功率的产生与输入光脉冲信号的空间周期同步，而第二输出功率的产生与输入的光脉冲信号的标记周期同步。 光脉冲信号是在重复周期给出的强度调制信号，该重复周期足够短于载波的寿命或测量中的光放大器的亚稳态中的离子的寿命。