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    Optical repeater converting wavelength and bit rate between networks
    31.
    发明申请
    Optical repeater converting wavelength and bit rate between networks 有权
    光中继器转换网络之间的波长和比特率

    公开(公告)号：US20050105908A1

    公开(公告)日：2005-05-19

    申请号：US10941918

    申请日：2004-09-16

    Applicant: Yoichi Oikawa

    Inventor： Yoichi Oikawa

    IPC: H04B10/27 ,  H04B10/2507 ,  H04B10/275 ,  H04B10/29 ,  H04B10/291 ,  H04J14/00 ,  H04J14/02 ,  H04L12/42 ,  H04L12/46

    CPC classification number: H04B10/271 ,  H04B10/27 ,  H04B10/275 ,  H04B10/29 ,  H04J14/02

    Abstract: An optical repeater which includes a wavelength converter and a bit rate converter. The wavelength converter converts a wavelength of an optical signal from a first optical network to a wavelength of a second optical network. The bit rate converter converts a bit rate of the optical signal from the first optical network to a bit rate of the second optical network. The optical repeater transmits the optical signal from the first optical network to the second optical network at the converted bit rate and wavelength.

    Abstract translation: 一种包括波长转换器和比特率转换器的光中继器。 波长转换器将来自第一光网络的光信号的波长转换为第二光网络的波长。 比特率转换器将来自第一光网络的光信号的比特率转换为第二光网络的比特率。 光中继器以转换比特率和波长将光信号从第一光网络传输到第二光网络。

    Network system for performing bidirectional transmission, and node device and transmission control method used in the system
    33.
    发明授权
    Network system for performing bidirectional transmission, and node device and transmission control method used in the system 失效
    用于执行双向传输的网络系统，以及系统中使用的节点设备和传输控制方法

    公开(公告)号：US5777762A

    公开(公告)日：1998-07-07

    申请号：US937783

    申请日：1997-09-24

    Applicant: Mitsuru Yamamoto

    Inventor： Mitsuru Yamamoto

    IPC: H04J14/00 ,  H04B10/27 ,  H04B10/275 ,  H04B10/291 ,  H04J14/02 ,  H04L12/42 ,  H04L12/43 ,  H04L12/46 ,  H04L12/707 ,  H04J4/00

    CPC classification number: H04L12/4637 ,  H04J14/0227 ,  H04J14/0241 ,  H04L12/43 ,  H04J14/0283

    Abstract: This application provides a network system that can obviate the need for arbitration control, and can realize bidirectional communications and loopback communications. In the network system, a first channel to be transmitted in the first direction, a second channel to be transmitted in the second direction, and third and fourth channels distinguished from the above-mentioned channels are used, and the packet to be looped back is transmitted using either the third or fourth channel. The transmission direction of the third or fourth channel is determined or changed in the self node device or in another node device, thus realizing loopback communications. In order to output a packet temporarily stored in a buffer using a desired channel, a device for changing the channel to which the buffer is connected is used, and the packet is read out from the buffer in correspondence with the changed channel to be connected. As the device for changing the channel to which the buffer is connected, a variable channel transmitter or a selector is used.

    Abstract translation: 该应用提供了一种可以避免对仲裁控制的需求的网络系统，可以实现双向通信和环回通信。 在网络系统中，使用要在第一方向上发送的第一信道，在第二方向上发送的第二信道，以及与上述信道区分的第三和第四信道，并且要循环的分组是 使用第三或第四通道发送。 第三或第四信道的发送方向在自身节点设备或其他节点设备中被确定或改变，从而实现环回通信。 为了使用期望的信道输出临时存储在缓冲器中的分组，使用用于改变连接缓冲器的信道的设备，并且与要连接的改变的信道相对应地从缓冲器读出分组。 作为用于改变连接缓冲器的通道的装置，使用可变通道发送器或选择器。

    Control system for a ring type network system
    34.
    发明授权
    Control system for a ring type network system 失效
    环型网络系统的控制系统

    公开(公告)号：US5533006A

    公开(公告)日：1996-07-02

    申请号：US196057

    申请日：1994-02-14

    Applicant: Tetsuya Uchida

    Inventor： Tetsuya Uchida

    IPC: H04B10/275 ,  H04L11/22

    CPC classification number: H04B10/27 ,  H04B10/275 ,  Y10S370/907

    Abstract: A node for a ring type synchronous optical network can continue to communicate with another node, when a transmission path is interrupted, located on the opposite side of the interrupted transmission path. A cross connecting unit cross connects the ring type transmission path with an external transmission path. The cross connecting unit generates and sends to another node an alarm indication signal when the ring type optical path is interrupted. A path switching unit switches the connection of an external transmission path to either direction of the ring type transmission path. A controlling unit controls the path switching unit, when an alarm indication signal is received from another node, so that the path switching unit switches the connection to a side opposite to a side from which the alarm indication signal has been received.

    Abstract translation: 当传输路径被中断时，环形同步光网络的节点可以继续与另一节点通信，位于中断的传输路径的相反侧。 交叉连接单元将环形传输路径与外部传输路径交叉连接。 当环型光路中断时，交叉连接单元生成并向另一个节点发送报警指示信号。 路径切换单元将外部传输路径的连接切换到环型传输路径的任一方向。 当从另一节点接收到报警指示信号时，控制单元控制路径切换单元，使得路径切换单元将连接切换到与其已经接收到报警指示信号的一侧相对的一侧。

    Microcellular mobile communication system
    35.
    发明授权
    Microcellular mobile communication system 失效
    微蜂窝移动通信系统

    公开(公告)号：US5424864A

    公开(公告)日：1995-06-13

    申请号：US284276

    申请日：1994-08-02

    Applicant: Katsumi Emura

    Inventor： Katsumi Emura

    IPC: H04B10/00 ,  H04B10/2507 ,  H04B10/2575 ,  H04B10/272 ,  H04B10/275 ,  H04B10/278 ,  H04W4/18 ,  H04W84/04 ,  H04W88/08 ,  H04W88/12 ,  H04W92/00 ,  H04W92/12 ,  H04B10/12

    CPC classification number: H04B10/25759 ,  H04B10/25754 ,  H04W4/18 ,  H04W84/042 ,  H04W88/08 ,  H04W88/085 ,  H04W88/12 ,  H04W92/12

    Abstract: A microcellular mobile radio communication system has a central base station and a plurality of radio base stations interconnected by a shared optical fiber transmission line. In the central and radio base stations, electrical radio signals are frequency-converted to frequencies assigned to the radio base stations and then converted into optical signals. In the central base station, the optical signals are combined for transmission through the optical fiber transmission line to the radio base stations. Alternatively, the frequency-converted electrical radio signals may first be combined and then converted into an optical signal for transmission. In the radio base stations, the electrical radio signals are converted to optical signals, which are combined and transmitted through the transmission line to the central radio station. In each radio base station, the frequency of the radio signal extracted from the received combined signal is frequency-converted to a frequency to be transmitted from its antenna, with the other signals filtered out. The central base station demodulates the received combined signal from the radio base stations into signals for the exchange office. The radio signals in different frequency bands assigned to each radio base station can simultaneously be transmitted through the shared optical fiber transmission lines between the radio and central base stations.

    Abstract translation: 微蜂窝移动无线通信系统具有通过共享光纤传输线互连的中央基站和多个无线基站。 在中央和无线电基站中，电波无线电信号被频率转换成分配给无线电基站的频率，然后转换为光信号。 在中央基站中，光信号被组合以通过光纤传输线传输到无线电基站。 或者，频率转换的电无线电信号可以首先被组合，然后被转换成用于传输的光信号。 在无线电基站中，电波无线电信号被转换成光信号，它们通过传输线组合并传输到中央无线电台。 在每个无线电基站中，从接收到的组合信号中提取的无线电信号的频率被频率转换为要从其天线发送的频率，其他信号被滤除。 中央基站将接收到的来自无线基站的组合信号解调为交换局的信号。 分配给每个无线电基站的不同频带中的无线电信号可以通过无线电和中央基站之间的共享光纤传输线同时发送。

    Optoelectrical connector device and optical plug socket therefor
    39.
    发明授权
    Optoelectrical connector device and optical plug socket therefor 失效
    光电连接器及其插头插座

    公开(公告)号：US4983011A

    公开(公告)日：1991-01-08

    申请号：US438210

    申请日：1989-11-20

    Applicant: Toshiyasu Tanaka ,  Nozomi Tsuzaki ,  Toyohiro Kobayashi

    Inventor： Toshiyasu Tanaka ,  Nozomi Tsuzaki ,  Toyohiro Kobayashi

    IPC: G02B6/42 ,  H04B10/00 ,  H04B10/25 ,  H04B10/275 ,  H04B10/29 ,  H04B10/80

    CPC classification number: H04B10/271 ,  H04B10/275

    Abstract: An optoelectrical connector device comprising a first and a second optical terminal connected to a main optical transmission line, a third optical terminal connected to a subsidiary optical transmission line, a first and a second light receiving means, and a first and a second light emitting means. The second light receiving means and the first light emitting means are optically connected to each other, and transmit a signal to a first information processing unit and receive the processed signal from it. The second optical terminal is connected optically to the first light receiving means and the second light emitting means, and transmits a signal to the first information processing unit and receives the processed signal from it. The third optical terminal is connected optically to the first light receiving means and transmits a signal to a second information processing unit.

    Loop-back control apparatus for a loop network having duplicate optical fiber transmission lines
    40.
    发明授权
    Loop-back control apparatus for a loop network having duplicate optical fiber transmission lines 失效
    具有重复光纤传输线的环路网络的环回控制装置

    公开(公告)号：US4829512A

    公开(公告)日：1989-05-09

    申请号：US89457

    申请日：1987-08-26

    Applicant: Syoichiro Nakai ,  Norio Yoshida

    Inventor： Syoichiro Nakai ,  Norio Yoshida

    IPC: H04B10/27 ,  H04B10/035 ,  H04B10/07 ,  H04B10/077 ,  H04B10/275 ,  H04J3/08 ,  H04L12/42 ,  H04L12/437

    CPC classification number: H04J3/085

    Abstract: A loop-back control apparatus for use in an optical fiber transmission system, wherein it is possible to compensate for faults in opto-electrical and electro-optical converters contained in the optical fiber transmission system. An electrical switch, an optical switch, and duplicate access controllers are provided, the electrical and optical switches being controlled by a control signal generator to enable selection from among the various electro-optical and opto-electrical converters in the event of fault in one of those devices.

    Abstract translation: 一种用于光纤传输系统的环回控制装置，其中可以补偿包含在光纤传输系统中的光电和电光转换器的故障。 提供电开关，光开关和复制存取控制器，电和光开关由控制信号发生器控制，以便能够在发生故障的情况下从各种电光和光电转换器中选择 那些设备。

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