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：US08909021B2

公开(公告)日：2014-12-09

申请号：US13521605

申请日：2010-02-01

申请人： Shinichi Saito ,  Masahiro Aoki ,  Toshiki Sugawara

发明人： Shinichi Saito ,  Masahiro Aoki ,  Toshiki Sugawara

IPC分类号： G02B6/00 ,  G02B6/36 ,  H01S5/30 ,  G02F1/225 ,  H01S5/02 ,  G02B6/122 ,  B82Y20/00 ,  G02B6/12 ,  G02F1/21 ,  H01S5/042 ,  H01S5/32 ,  H01S5/12

CPC分类号： G02B6/122 ,  B82Y20/00 ,  G02B2006/12097 ,  G02B2006/12178 ,  G02F1/218 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/12 ,  G02F2202/06 ,  G02F2202/09 ,  G02F2202/105 ,  G02F2203/06 ,  H01S5/021 ,  H01S5/0424 ,  H01S5/12 ,  H01S5/3027 ,  H01S5/3202

摘要： Disclosed is a silicon optical waveguide having a small optical loss and no polarization dependency. The silicon optical waveguide is formed on a silicon substrate with an embedded oxide film therebetween, the plane orientation of the surface of the silicon optical waveguide is the (110) plane, the plane orientation of the side wall is the (111) plane, and the recesses and projections of the side wall are planarized at an atomic level.

摘要翻译： 公开了具有小光损耗并且没有偏振依赖性的硅光波导。 硅光波导形成在其上具有埋入氧化膜的硅衬底上，硅光波导表面的平面取向为（110）面，侧壁的面取向为（111）面， 侧壁的凹部和突起在原子级平坦化。

公开(公告)号：US08569727B2

公开(公告)日：2013-10-29

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： G01V8/00

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设备中，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：US20120287959A1

公开(公告)日：2012-11-15

申请号：US13521533

申请日：2011-01-28

申请人： Kazuki Tani ,  Shinichi Saito ,  Toshiki Sugawara ,  Youngkun Lee ,  Digh Hisamoto ,  Makoto Miura ,  Katsuya Oda

发明人： Kazuki Tani ,  Shinichi Saito ,  Toshiki Sugawara ,  Youngkun Lee ,  Digh Hisamoto ,  Makoto Miura ,  Katsuya Oda

IPC分类号： H01S5/22

CPC分类号： H01S5/3223 ,  H01L33/34 ,  H01L33/62 ,  H01L2924/0002 ,  H01S5/0207 ,  H01S5/021 ,  H01S5/0424 ,  H01S5/0425 ,  H01S5/1231 ,  H01S5/4031 ,  H01L2924/00

摘要： A germanium light-emitting device emitting light at high efficiency is provided by using germanium of small threading dislocation density. A germanium laser diode having a high quality germanium light-emitting layer is attained by using germanium formed over silicon dioxide. A germanium laser diode having a carrier density higher than the carrier density limit that can be injected by existent n-type germanium can be provided using silicon as an n-type electrode.

摘要翻译： 通过使用小螺纹位错密度的锗来提供高效率发光的锗发光器件。 通过使用在二氧化硅上形成的锗来获得具有高质量锗发光层的锗激光二极管。 可以使用硅作为n型电极来提供具有高于可由现有的n型锗注入的载流子密度极限的载流子密度的锗激光二极管。

公开(公告)号：US07676127B2

公开(公告)日：2010-03-09

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： G02B6/28

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和扩展码的信道资源信息块; 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：US20090310964A1

公开(公告)日：2009-12-17

申请号：US12379107

申请日：2009-02-12

申请人： Toshiki Sugawara ,  Yusuke Yajima ,  Tohru Kazawa

发明人： Toshiki Sugawara ,  Yusuke Yajima ,  Tohru Kazawa

IPC分类号： H04B10/20

CPC分类号： H04B10/85 ,  H04B10/272 ,  H04J3/14

摘要： There is provided an abnormal light cut-off system in which even when a high power light is inputted from an optical fiber connected to a user side apparatus by a malicious user or an accident, a trouble rate is low, the abnormal light is cut off at high sensitivity, and security is high. In a network system in which an optical line terminating apparatus and plural optical network apparatuses are connected together via plural optical connection sections and an optical branching section, the optical branching section includes one optical line terminating apparatus side port and plural optical network apparatus side branch ports, an optical line terminating apparatus side optical fiber connects the optical line terminating apparatus and the one optical line terminating apparatus side port, an optical branching section side optical fiber connects the optical network apparatus side branch port and a light cut-off section, and an optical network apparatus side optical fiber connects the light cut-off section and the optical network apparatus. When an abnormal light is inputted from the optical network apparatus side, it is cut off by the light cut-off section.

摘要翻译： 提供了一种异常的遮光系统，其中即使从恶意用户或事故连接到用户侧设备的光纤输入高功率光，故障率低，异常光被切断 灵敏度高，安全性高。 在光线路终端装置和多个光网络装置经由多个光连接部和光分支部连接的网络系统中，光分支部包括一个光线路终端装置侧端口和多个光网络装置侧分支端口 光线路终端装置侧光纤将光线路终端装置与一根光线路终端装置侧端口连接，光分路部侧光纤将光网络装置侧分支端口与遮光部分连接， 光网络装置侧光纤连接光切断部和光网络装置。 当从光网络装置侧输入异常光时，被遮光部切断。

公开(公告)号：US20090304388A1

公开(公告)日：2009-12-10

申请号：US12477952

申请日：2009-06-04

申请人： Kazuyori UMEMATSU ,  Yusuke Yajima ,  Tsuyoshi Kano ,  Toshiki Sugawara

发明人： Kazuyori UMEMATSU ,  Yusuke Yajima ,  Tsuyoshi Kano ,  Toshiki Sugawara

IPC分类号： H04J14/02

CPC分类号： H04J14/0282

摘要： In the case where, in a WDM-PON system, a high-output optical signal or a pseudo signal for illegal access by a hostile user, or an optical signal with a wavelength which is not assigned from an OLT is input to an ONU-side optical fiber, the quality of communications for other users is possibly affected and a receiver on the station side is possibly destroyed. By providing an optical blocking unit at a position near an ONU-side optical splitter of an optical branching unit, in the case where input of an extraordinary optical signal is detected, an optical route into which the extraordinary optical signal is input is blocked, so that the input of the extraordinary optical signal to an OLT and optical lines shared by plural users can be preliminarily blocked.

摘要翻译： 在WDM-PON系统中，由用户非法接入的高输出光信号或伪信号或者没有从OLT分配的具有波长的光信号输入到ONU- 其他用户的通信质量可能受到影响，站侧的接收机可能被破坏。 通过在光分路单元的ONU侧光分路器附近的位置设置光阻断单元，在检测到异常光信号的输入的情况下，输入异常光信号的光路被阻塞，所以 可以预先阻止非常光信号向OLT和多个用户共享的光线路的输入。

公开(公告)号：US20090162063A1

公开(公告)日：2009-06-25

申请号：US12337790

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： H04B10/20

CPC分类号： H04J3/0682 ,  H04J3/1694

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.

摘要翻译： 为了使PON共存，必须完全消除多个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：US20090162053A1

公开(公告)日：2009-06-25

申请号：US12222224

申请日：2008-08-05

申请人： Hiroki Ikeda ,  Toshiki Sugawara ,  Yusuke Yajima

发明人： Hiroki Ikeda ,  Toshiki Sugawara ,  Yusuke Yajima

IPC分类号： H04B10/08

CPC分类号： H04B10/272 ,  H04B10/27

摘要： When a signal of weak optical power is received immediately after a signal of intense optical power, input of the signal of intense optical power readily causes saturation, and the influence interferes in the signal of weak optical power to deteriorate receiver sensitivity. Moreover, when a reverse-bias voltage of APD is changed, if a difference between the voltages is large, a next optical signal is received until the receiver sensitivity of the APD becomes stable, so that receiver sensitivity deteriorates. A DBA order is determined so that a difference in reverse-bias voltage is small, and reverse-bias voltage is controlled in line with reception timing from ONU.

摘要翻译： 当在强光信号之后立即接收到弱光功率的信号时，强光信号信号的输入容易引起饱和，并且影响会干扰弱光功率的信号，从而降低接收机灵敏度。 此外，当APD的反向偏置电压发生变化时，如果电压差大，则接收下一个光信号，直到APD的接收灵敏度变得稳定为止，接收灵敏度变差。 确定DBA顺序，使得反向偏置电压的差小，并且根据ONU的接收定时来控制反向偏置电压。

公开(公告)号：US07386012B2

公开(公告)日：2008-06-10

申请号：US10728260

申请日：2003-12-03

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： H04J3/24

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

摘要： An overhead passing processing circuit in a synchronous multiplex network, with a circuit for extracting predetermined administration and maintenance operating information from multiplexed signals, a crossconnecting circuit for crossconnecting information extracted by the extraction circuit stage, and an insertion circuit for inserting an output of the crossconnecting circuit into a predetermined location in the overhead of the multiplexed signal to be transmitted.

摘要翻译： 一种同步多路复用网络中的开销通过处理电路，具有用于从多路复用信号中提取预定的管理和维护操作信息的电路，用于交叉连接由提取电路级提取的信息的交叉连接电路和用于插入交叉连接的输出的插入电路 电路进入待传输的复用信号的开销中的预定位置。