公开(公告)号：US08331784B2

公开(公告)日：2012-12-11

申请号：US12337793

申请日：2008-12-18

申请人： Masahiko Mizutani ,  Toshiki Sugawara ,  Hiroki Ikeda

发明人： Masahiko Mizutani ,  Toshiki Sugawara ,  Hiroki Ikeda

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J3/0655 ,  H04J3/0682 ,  H04L7/0008 ,  H04Q2011/0064 ,  H04Q2011/0079

摘要： It is necessary to completely remove the overlapping of signals between plural PONs in order to make the PONs coexist. Accordingly, it is required to share or intensively manage bandwidth use conditions over an optical fiber that serves as a common band between plural systems. Therefore, transmission clocks should be synchronized with high accuracy between the plural systems. A reference clock is provided from an external device or a representative OLT to the entire systems to perform clock synchronization between the plural systems, so that the overall systems are synchronized by synchronizing each OLT with the reference clock. A hierarchical management method is selected that manages ONUs under the control of each OLT by managing band use information arranged for each OLT with respect to an external device or a representative OLT for sharing of bandwidth use conditions between plural systems.

摘要翻译： 为了使PON共存，有必要完全消除多个PON之间的信号重叠。 因此，需要在用作多个系统之间的公共频带的光纤上共享或集中管理带宽使用条件。 因此，传输时钟应该在多个系统之间以高精度同步。 从外部设备或代表性OLT向整个系统提供参考时钟以在多个系统之间执行时钟同步，使得通过使每个OLT与参考时钟同步来使整个系统同步。 选择分级管理方法，通过管理针对每个OLT针对外部设备或代表性的OLT布置的用于共享多个系统之间的带宽使用条件的代表性OLT来管理在每个OLT的控制下的ONU。

公开(公告)号：US08027586B2

公开(公告)日：2011-09-27

申请号：US12071490

申请日：2008-02-21

申请人： Hiroki Ikeda ,  Masahiko Mizutani ,  Toshiki Sugawara ,  Shinobu Gohara

发明人： Hiroki Ikeda ,  Masahiko Mizutani ,  Toshiki Sugawara ,  Shinobu Gohara

IPC分类号： H04J14/00

CPC分类号： H04J3/1694

摘要： A passive optical network (PON) system which enables plural types of ONUs having different signal transmission speeds to be connected to one OLT. An optical line terminating apparatus (OLT) connected to plural types of ONUs having different signal transmission speeds through an optical distribution network includes an optical transmitter-receiver connected to the optical distribution network, a transmission/reception line interface connected to a wide area network, a downstream frame processing section for converting a packet received by the transmission/reception line interface from the wide area network into a downstream frame containing identification information on a destination ONU in a header, and a downstream transmission controller for modulating the downstream frame at a speed corresponding to a signal transmission speed of the destination ONU and outputting the modulated frame to an electrical/optical converter connected to the optical transmitter-receiver.

摘要翻译： 一种能够将具有不同信号传输速度的多种ONU连接到一个OLT的无源光网络（PON）系统。 通过光分配网络连接到具有不同信号传输速度的多种ONU的光线路终端设备（OLT）包括连接到光分配网络的光发射机 - 接收机，连接到广域网的发射/接收线路接口， 下行帧处理部分，用于将由发送/接收线路接口接收的分组从广域网转换成包含标题中的目的地ONU的标识信息的下游帧;以及下行传输控制器，用于以下一个速度调制下游帧 对应于目的地ONU的信号传输速度，并将调制帧输出到连接到光发射机 - 接收机的电/光转换器。

公开(公告)号：US20090162064A1

公开(公告)日：2009-06-25

申请号：US12337783

申请日：2008-12-18

申请人： Masahiko Mizutani ,  Toshiki Sugawara ,  Hiroki Ikeda

发明人： Masahiko Mizutani ,  Toshiki Sugawara ,  Hiroki Ikeda

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04J3/0682 ,  H04J3/0685 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0254 ,  H04J14/0256 ,  H04J14/0267 ,  H04J14/0269 ,  H04Q11/0067

摘要： It is necessary to completely remove overlapping of signals between plural PONs in order to make the PONs coexist. Accordingly, it is required to share or intensively manage bandwidth use conditions over an optical fiber that serves as a common band between plural systems. Therefore, transmission clocks should be synchronized with high accuracy between plural systems. A reference clock is provided from an external device or a representative OLT to the entire systems to perform clock synchronization between plural systems, so that the overall systems are synchronized by synchronizing each OLT with the reference clock. A hierarchical management method is selected that manages ONUs under the control of each OLT by managing band use information arranged for each OLT with respect to an external device or a representative OLT for sharing of bandwidth use conditions between plural systems.

公开(公告)号：US06625115B1

公开(公告)日：2003-09-23

申请号：US09667890

申请日：2000-09-22

申请人： Hiroki Ikeda ,  Toshiki Sugawara ,  Yukio Nakano

发明人： Hiroki Ikeda ,  Toshiki Sugawara ,  Yukio Nakano

IPC分类号： G01R3108

CPC分类号： H04L1/22 ,  H04J3/085 ,  H04J2203/006

摘要： The present invention provides a network in which the installation of working lines may be enabled based on the required traffic and the high speed switching of the transmission lines may be realized, as well as a transmission equipment used for that network and a method of control thereof. The transmission equipment comprises an APS byte transmitter/receiver for exchanging information on failures with adjacent transmission equipment through a protection line, a monitor for monitoring anomalies on a plurality of the working lines, a Network Table for storing data indicating network structure, a processing unit for determining working lines to be switched based on the data stored in the Network Table and for processing APS bytes. APS bytes are allocated with the working line number, its priority, and the source node number of switching signal. In addition a Network Table is provided to each node for storing connecting state of the network and information on failures, thereby the destination node may be identified. When a failure occurs, the best optimal line switching will be performed by exchanging information on failures by means of the APS bytes.

摘要翻译： 本发明提供一种网络，其中可以基于所需业务来启用工作线路的安装，并且可以实现传输线路的高速切换以及用于该网络的传输设备及其控制方法 传输设备包括一个APS字节发送器/接收器，用于通过保护线路与邻近的传输设备交换故障信息，监视多个工作线路上的异常，用于存储指示网络结构的数据的网络表，处理 基于存储在网络表中的数据确定要切换的工作线路和用于处理APS字节的单元.APS字节被分配有工作线路号码，其优先级和源节点数量的切换信号。 另外，向每个节点提供网络表以存储网络的连接状态和关于故障的信息，从而可以识别目的地节点。当故障发生时，将通过以下方式来进行最佳的最佳线切换：通过手段交换故障信息 的APS字节。

公开(公告)号：US6144633A

公开(公告)日：2000-11-07

申请号：US837734

申请日：1997-04-22

申请人： Hiroki Ikeda ,  Toshiki Sugawara ,  Yukio Nakano

发明人： Hiroki Ikeda ,  Toshiki Sugawara ,  Yukio Nakano

IPC分类号： H04J3/08 ,  H04L1/22 ,  H04J1/16

CPC分类号： H04L1/22 ,  H04J3/085 ,  H04J2203/006

摘要： The present invention provides a network in which the installation of working lines may be enabled based on the required traffic and the high speed switching of the transmission lines may be realized, as well as a transmission equipment used for that network and a method of control thereof.The transmission equipment comprises an APS byte transmitter/receiver for exchanging information on failures with adjacent transmission equipment through a protection line, a monitor for monitoring anomalies on a plurality of the working lines, a Network Table for storing data indicating network structure, a processing unit for determining working lines to be switched based on the data stored in the Network Table and for processing APS bytes.APS bytes are allocated with the working line number, its priority, and the source node number of switching signal. In addition a Network Table is provided to each node for storing connecting state of the network and information on failures, thereby the destination node may be identified.When a failure occurs, the best optimal line switching will be performed by exchanging information on failures by means of the APS bytes.

摘要翻译： 本发明提供一种网络，其中可以基于所需业务来启用工作线路的安装，并且可以实现传输线路的高速切换以及用于该网络的传输设备及其控制方法 。 传输设备包括用于通过保护线路与邻近传输设备交换故障信息的APS字节发送器/接收器，用于监视多个工作线路上的异常的监视器，用于存储指示网络结构的数据的网络表，处理单元 用于基于存储在网络表中的数据和用于处理APS字节确定要切换的工作线。 APS字节分配有工作线路号，其优先级和源节点数量的切换信号。 此外，网络表被提供给每个节点用于存储网络的连接状态和关于故障的信息，从而可以识别目的地节点。 当发生故障时，将通过APS字节交换故障信息来执行最佳的最佳线路切换。

公开(公告)号：US20090097861A1

公开(公告)日：2009-04-16

申请号：US12071490

申请日：2008-02-21

申请人： Hiroki Ikeda ,  Masahiko Mizutani ,  Toshiki Sugawara ,  Shinobu Gohara

发明人： Hiroki Ikeda ,  Masahiko Mizutani ,  Toshiki Sugawara ,  Shinobu Gohara

IPC分类号： H04B10/12

CPC分类号： H04J3/1694

摘要： A passive optical network (PON) system which enables plural types of ONUs having different signal transmission speeds to be connected to one OLT. An optical line terminating apparatus (OLT) connected to plural types of ONUs having different signal transmission speeds through an optical distribution network includes an optical transmitter-receiver connected to the optical distribution network, a transmission/reception line interface connected to a wide area network, a downstream frame processing section for converting a packet received by the transmission/reception line interface from the wide area network into a downstream frame containing identification information on a destination ONU in a header, and a downstream transmission controller for modulating the downstream frame at a speed corresponding to a signal transmission speed of the destination ONU and outputting the modulated frame to an electrical/optical converter connected to the optical transmitter-receiver.

摘要翻译： 一种能够将具有不同信号传输速度的多种ONU连接到一个OLT的无源光网络（PON）系统。 通过光分配网络连接到具有不同信号传输速度的多种ONU的光线路终端设备（OLT）包括连接到光分配网络的光发射机 - 接收机，连接到广域网的发射/接收线路接口， 下行帧处理部分，用于将由发送/接收线路接口接收的分组从广域网转换成包含标题中的目的地ONU的标识信息的下游帧;以及下行传输控制器，用于以下一个速度调制下游帧 对应于目的地ONU的信号传输速度，并将调制帧输出到连接到光发射机 - 接收机的电/光转换器。

公开(公告)号：US08653433B2

公开(公告)日：2014-02-18

申请号：US13145047

申请日：2010-01-13

申请人： Daisuke Mashimo ,  Hiroki Ikeda ,  Yoshinobu Morita

发明人： Daisuke Mashimo ,  Hiroki Ikeda ,  Yoshinobu Morita

IPC分类号： H03G3/20

CPC分类号： H03F3/087 ,  H03F1/083 ,  H03G3/3084 ,  H04B10/272 ,  H04B10/6931

摘要： In a gain-switching-type transimpedance amplifier, in order to provide a technique capable of preventing unnecessary gain switching caused when noise is received, and preventing decrease in sensitivity caused when noise with a large input level is received, and then, a burst signal with a small input level is received, a transimpedance amplifier 5 includes: a pre-amplifier 200 to which the burst signal is inputted; an average detection start determination unit 300 for comparing an output of a pre-amplifier 200 with a first threshold voltage; an average detection circuit 400 for detecting and outputting an average value of the output of the pre-amplifier 200 during a certain period of time from a time point when the output of the pre-amplifier 200 exceeds the first threshold voltage; and a gain switching control unit 500 for determining whether to switch a gain of the pre-amplifier 200 based on an output of the average detection circuit 400.

摘要翻译： 在增益切换式跨阻放大器中，为了提供能够防止在接收到噪声时引起的不必要的增益切换的技术，并且防止在接收到具有大输入电平的噪声时引起的灵敏度降低，然后，突发信号 在接收到小的输入电平的情况下，跨阻抗放大器5包括：输入突发信号的前置放大器200; 平均检测开始判定单元300，用于将前置放大器200的输出与第一阈值电压进行比较; 平均检测电路400，用于在从前置放大器200的输出超过第一阈值电压的时间点起，在一定时间段内检测并输出前置放大器200的输出的平均值; 以及用于基于平均检测电路400的输出来确定是否切换前置放大器200的增益的增益切换控制单元500。

公开(公告)号：US08422762B2

公开(公告)日：2013-04-16

申请号：US12738780

申请日：2007-10-31

申请人： Masayoshi Ichikawa ,  Hiroki Ikeda

发明人： Masayoshi Ichikawa ,  Hiroki Ikeda

IPC分类号： G06K9/00

CPC分类号： G01R31/2887 ,  G01R31/2874 ,  G06T7/0004

摘要： An abnormality detecting apparatus includes an imaging device for obtaining image data of a TIM, a failure detecting section for detecting appearance failures of the TIM on the basis of the image data of the TIM obtained by the imaging device, and a determining device for determining whether an abnormality occurs at the TIM on the basis of a detection result by the failure detecting section.

摘要翻译： 异常检测装置包括用于获取TIM的图像数据的成像装置，用于根据由成像装置获得的TIM的图像数据检测TIM的出现故障的故障检测部分，以及用于确定是否 基于故障检测部的检测结果，TIM发生异常。

公开(公告)号：US08380065B2

公开(公告)日：2013-02-19

申请号：US12582083

申请日：2009-10-20

申请人： Michitaka Okuno ,  Koji Wakayama ,  Kenichi Sakamoto ,  Hiroki Ikeda

发明人： Michitaka Okuno ,  Koji Wakayama ,  Kenichi Sakamoto ,  Hiroki Ikeda

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J2203/0058 ,  H04L43/0864 ,  H04Q2011/0079 ,  H04Q2011/0088

摘要： Provided is an optical access system comprising: an optical line terminal connected to another network; a plurality of optical network units, each connected to a user terminal; and at least one of an optical switching unit and an optical splitter, which is installed between the optical line terminal and the plurality of optical network units. The optical line terminal allocates a length of time to a discovery phase for detecting the plurality of optical network units, and a length of time to data transmission phases for transferring data from the plurality of optical network units; and changes a ratio of the length of time of the discovery phase to the length of time of the data transmission phases so that the length of time of the discovery phase is shortened in the case where a number of the optical network units that are registered in the optical line terminal increase.

摘要翻译： 提供一种光接入系统，包括：连接到另一网络的光线路终端; 多个光网络单元，各自连接到用户终端; 以及安装在光线路终端与多个光网络单元之间的光交换单元和分光器中的至少一个。 光线路终端将用于检测多个光网络单元的发现阶段的时间长度分配给从多个光网络单元传送数据的数据传输阶段的时间长度; 并且将发现阶段的时间长度与数据传输阶段的时间长度的比率进行改变，使得在注册的光网络单元的数量的情况下，发现阶段的时间长度被缩短 光线路终端增加。

公开(公告)号：US20130004172A1

公开(公告)日：2013-01-03

申请号：US13535405

申请日：2012-06-28

申请人： Jun SUGAWA ,  Daisuke Mashimo ,  Hiroki Ikeda

发明人： Jun SUGAWA ,  Daisuke Mashimo ,  Hiroki Ikeda

IPC分类号： H04J14/02

CPC分类号： H04J3/1694 ,  H04B10/272 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0267

摘要： Technology to provide linked control of bandwidth allocation to a plurality of optical network units among the plural wavelengths by a bandwidth allocation section coupled to the plural optical network units.

摘要翻译： 通过耦合到多个光网络单元的带宽分配部分，向多个波长中的多个光网络单元提供带宽分配的链接控制的技术。