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：US20110096383A1

公开(公告)日：2011-04-28

申请号：US12999392

申请日：2009-06-11

申请人： Etsuko Nomoto ,  Shigehisa Tanaka ,  Hitoshi Nakamura ,  Toshiki Sugawara ,  Kouji Nakahara

发明人： Etsuko Nomoto ,  Shigehisa Tanaka ,  Hitoshi Nakamura ,  Toshiki Sugawara ,  Kouji Nakahara

IPC分类号： G02B26/10

CPC分类号： H04N9/317 ,  G02B26/10 ,  H04N9/3129

摘要： The object of the invention included in the present application is to automatically prevent the deterioration of the image even when the image quality of the projected image is deteriorated due to the replacement of the light source or the like. The following light beam scanning image projection apparatus is one means for achieving the object. In the light beam scanning image projection apparatus including a plurality of light sources which emit the light beams of respectively different wavelengths, a driving section which modulates the intensity of each light beam in accordance with the image signal, the light axis alignment means which aligns the light axes of each light beam, and scanning means which scans the light beams, the light axis alignment means includes: a plurality of optical elements; and an adjusting section which adjusts at least one of a position and a gradient of at least one of the optical elements, and the light beam scanning image projection apparatus further includes: detecting means which detects a shift between a spot center of each light beam and a center reference point; and position correction means which controls the adjusting section based on a detection result in the detecting means to adjust at least one of the position and the gradient of at least one of the optical elements of the light axis alignment means, thereby aligning the light axes of each light beam.

摘要翻译： 本申请中包括的本发明的目的是即使当由于更换光源等而导致投影图像的图像质量劣化时，也能够自动防止图像的劣化。 以下光束扫描图像投影装置是实现该目的的一种手段。 在包括发射分别不同波长的光束的多个光源的光束扫描图像投影装置中，根据图像信号调制每个光束的强度的驱动部分，将对准该光束的光轴对准装置 每个光束的光轴和扫描光束的扫描装置，光轴对准装置包括：多个光学元件; 以及调整部，其调整至少一个所述光学元件的位置和倾斜度中的至少一个，并且所述光束扫描图像投影装置还包括：检测装置，其检测每个光束的光点中心与 中心参考点 以及位置校正装置，其基于检测装置中的检测结果来控制调节部分，以调整光轴对准装置的至少一个光学元件的位置和梯度中的至少一个，从而使光轴对准装置的光轴 每个光束。

公开(公告)号：US20100278482A1

公开(公告)日：2010-11-04

申请号：US12810442

申请日：2008-12-15

申请人： Koichiro Adachi ,  Kazuhiko Hosomi ,  Toshiki Sugawara

发明人： Koichiro Adachi ,  Kazuhiko Hosomi ,  Toshiki Sugawara

IPC分类号： G02B6/32

CPC分类号： H04B10/40 ,  G02B6/29367 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4246 ,  H01L31/02325 ,  H01L31/153 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02288 ,  H01S5/02292 ,  H01S5/0267 ,  H01S5/0687

摘要： The optical module includes an optical device mounting substrate 1 and an optical multiplexer/demultiplexer 2. One laser diode and at least one photodetector, which are positioned in the same plane, are mounted on the optical device mounting substrate 1. The optical multiplexer/demultiplexer is prepared by mounting a wavelength-selective filter and a mirror on the front and back surfaces of a transparent substrate. The optical device mounting substrate and the optical multiplexer/demultiplexer are mounted in a package 3 in such a manner that the optical device mounting surface and the filter surface are not parallel to each other. The optical module also includes a first lens, which is positioned near the laser diode or monolithically integrated with the laser diode, and a second lens, which converges light coming out of the optical multiplexer/demultiplexer toward an optical fiber.

摘要翻译： 光学模块包括光学装置安装基板1和光复用器/解复用器2.位于同一平面中的一个激光二极管和至少一个光电检测器安装在光学装置安装基板1上。光复用器/解复用器 通过在透明基板的前表面和后表面上安装波长选择性滤光器和反射镜来制备。 光学装置安装基板和光复用器/解复用器以光学装置安装表面和滤光器表面彼此不平行的方式安装在封装3中。 光学模块还包括位于激光二极管附近或与激光二极管单片集成的第一透镜，以及将从光复用器/解复用器出来的光会聚到光纤的第二透镜。

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：US20080304828A1

公开(公告)日：2008-12-11

申请号：US11858566

申请日：2007-09-20

申请人： Masahiko Mizutani ,  Toshiki Sugawara ,  Tohru Kazawa ,  Yoshihiro Ashi

发明人： Masahiko Mizutani ,  Toshiki Sugawara ,  Tohru Kazawa ,  Yoshihiro Ashi

IPC分类号： H04J13/02

CPC分类号： H04B1/707 ,  H04B2201/70715 ,  H04J14/005 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0282 ,  H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0086

摘要： In a PON system, an OLT periodically transmits a channel resource information block specifying a carrier wavelength and a spreading code on a first downstream channel to which a spread-spectrum spreader having a first spreading code is applied; one of ONUs receives the channel resource information block with a spread-spectrum despreader having the first spreading code and transmits a connection request to the OLT, using the carrier wavelength and the spreading code specified by the channel resource information block; the OLT having received the connection request transmits a new channel resource information block specifying a carrier wavelength and a spreading code to be used on an upstream data channel to the requester ONU through the first channel; and the requester ONU transmits data, using the carrier wavelength and the spreading code specified by the new channel resource information block.

摘要翻译： 在PON系统中，OLT在具有应用具有第一扩展码的扩频扩频器的第一下行信道周期性地发送指定载波波长的信道资源信息块和扩展码; 一个ONU使用具有第一扩展码的扩频解扩器接收信道资源信息块，并使用由信道资源信息块指定的载波波长和扩展码向OLT发送连接请求; 已经接收到连接请求的OLT通过第一信道向请求者ONU发送指定用于上行数据信道的载波波长和扩展码的新信道资源信息块; 并且请求者ONU使用载波波长和由新的信道资源信息块指定的扩展码来发送数据。

公开(公告)号：US20070147840A1

公开(公告)日：2007-06-28

申请号：US11641743

申请日：2006-12-20

申请人： Toshiki Sugawara ,  Kazuhiko Hosomi ,  Satoshi Makio

发明人： Toshiki Sugawara ,  Kazuhiko Hosomi ,  Satoshi Makio

IPC分类号： H04J14/02

CPC分类号： G02B6/29398 ,  G02B6/29358 ,  G02B6/29364 ,  G02B6/29394 ,  G02B6/29395

摘要： The present invention provides: (1) a compensator that compensates a wide range of amount of dispersion of light in a wide bandwidth band; and (2) a variable dispersion slope compensator applicable to the case where a transmission path suitable for a wavelength division multiplexing transmission system produces a wavelength dispersion slope. The present invention realizes: (1) a variable dispersion compensator that compensates a wide range of amount of dispersion of light in a wide bandwidth band; and (2) a variable dispersion slope compensator suitable for a wavelength division multiplexing transmission system. To realize the above, a dispersion compensating unit is provided with a structure in which a mirror is disposed in parallel to or with a slight angle relative to an etalon to reflect a light beam emitted from a collimator on the etalon multiple times and then emit the light beam into another collimator.

摘要翻译： 本发明提供：（1）补偿器，其补偿在宽带宽范围内的宽范围的光分散; 和（2）可变色散斜率补偿器，适用于适用于波分复用传输系统的传输路径产生波长色散斜率的情况。 本发明实现：（1）可变色散补偿器，其补偿在宽带宽范围内的宽范围的色散; 和（2）适用于波分复用传输系统的可变色散斜率补偿器。 为了实现上述目的，色散补偿单元具有这样一种结构，其中反射镜相对于标准具平行或以微小的角度设置，以将从准直器发射的光束多次反射到标准具上，然后发射 光束进入另一个准直仪。

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：US06577438B2

公开(公告)日：2003-06-10

申请号：US09938610

申请日：2001-08-27

申请人： Toshiki Sugawara ,  Junya Kosaka

发明人： Toshiki Sugawara ,  Junya Kosaka

IPC分类号： H04B1012

CPC分类号： H01S3/06758 ,  H01S3/10069 ,  H01S3/1301 ,  H01S3/1305 ,  H01S2301/04

摘要： An optical amplifier includes an optical amplification medium which has simultaneous inputs of a WDM signal light and a pumping light and amplifies the WDM signal light, a pumping light source, and an amplification characteristic supervisor part which evaluates the gain tilt of amplified WDM signal lights. The supervisor part is provided in advance with a record of the relation between the medium output light power and the pumping light power corresponding to the output light power in terms of a number of proper curves plotted for certain gain tilts, and adapted to select a proper curve which is nearest to the relation in operation between the power of the pumping light which is incident to the medium in operation and the resulting amplified output light power from among the recorded proper curves, thereby determining the gain tilt of the medium based on the selected proper curve.

摘要翻译： 光放大器包括具有WDM信号光和泵浦光的同时输入并放大WDM信号光的光放大介质，泵浦光源和放大特征监视器部分，其评估放大的WDM信号光的增益倾斜。 预先提供主管部分，记录介质输出光功率和与输出光功率相对应的泵浦光功率之间的关系，就某些增益倾斜而绘制的适当曲线数量而言，适用于选择适当的 曲线，其最接近入射到操作中的介质的泵浦光的功率与所记录的适当曲线中产生的放大的输出光功率之间的操作关系，从而基于所选择的，确定介质的增益倾斜 适当的曲线。

公开(公告)号：US06169754A

公开(公告)日：2001-01-02

申请号：US08863675

申请日：1997-05-27

申请人： Toshiki Sugawara ,  Masaki Ohira ,  Yukio Nakano ,  Takashi Mori

发明人： Toshiki Sugawara ,  Masaki Ohira ,  Yukio Nakano ,  Takashi Mori

IPC分类号： H04J304

CPC分类号： H04J3/1611 ,  H04J2203/0057 ,  H04J2203/0089 ,  H04Q11/0478

摘要： In a synchronous multiplex network including a plurality of multiplex transmission apparatuses, an overhead is passed through intervening multiplex transmission apparatuses such that administration and maintenance operation information is transmitted and received through the overhead between arbitrary multiplex transmission apparatuses. The multiplex transmission apparatus receives a multiplexed signal comprising a payload having a plurality of main signals multiplexed therein and overhead bytes including a plurality of administration and maintenance operation information, performs termination processing for the administration and maintenance operation information and transmission processing for the payload, thereafter converts the multiplexed signal into a different multiplexed signal comprising a payload which has been processed for transmission and a plurality of administration and maintenance operation information, and transmits the different multiplexed signal.

摘要翻译： 在包括多个多路传输装置的同步多路复用网络中，通过中间多路复用传输装置进行开销，从而通过任意多路复用传输装置之间的开销发送和接收管理和维护操作信息。 多路复用发送装置接收包含多路复用的多个主信号的有效载荷和包含多个管理维护操作信息的开销字节的多路复用信号，执行管理和维护操作信息的终止处理以及有效负载的发送处理 将多路复用的信号转换为包括已经被处理以进行传输的有效载荷和多个管理和维护操作信息的不同复用信号，并发送不同的复用信号。

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。