公开(公告)号：US07650072B2

公开(公告)日：2010-01-19

申请号：US12399275

申请日：2009-03-06

申请人： Miki Onaka ,  Yasushi Sugaya ,  Takahumi Terahara ,  Satoru Okano ,  Takehiro Fujita ,  Hiroaki Tomofuji ,  Ichiro Nakajima

发明人： Miki Onaka ,  Yasushi Sugaya ,  Takahumi Terahara ,  Satoru Okano ,  Takehiro Fujita ,  Hiroaki Tomofuji ,  Ichiro Nakajima

IPC分类号： H04B10/00 ,  H04B10/08 ,  H04B10/12 ,  H04J14/02

CPC分类号： H04J14/0221 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0219

摘要： An optical node apparatus according to the present invention amplifies a WDM signal light input to an input port, and thereafter, branches the amplified WDM signal light by an optical branching coupler to send the branched lights to first and second optical paths, and selects the light propagated through the first optical path by an optical switch to amplify the selected light by a post-amplifier, thereby outputting the amplified light from an output port, when the optical node apparatus is operated as an optical amplification repeating node. When the operational state is upgraded to an optical add/drop multiplexing node, an OADM section is connected between a set of connecting ports on the second optical path, and the adjustment of the OADM section is performed utilizing the WDM signal light branched by the optical branching coupler, and thereafter, the switching of the optical switch is performed to select the light on the second optical path side. As a result, since the switching the operational state from the optical amplification repeating node to the OADM node can be performed in a short time, it becomes possible to provide the continued communication service at the low initial installation cost.

摘要翻译： 根据本发明的光节点装置放大输入到输入端口的WDM信号光，然后通过光分路耦合器对放大的WDM信号光进行分支，以将分支光发送到第一和第二光路，并选择光 通过光开关通过第一光路传播，以通过后置放大器放大所选择的光，从而当光节点装置作为光放大重复节点工作时，从输出端口输出放大的光。 当操作状态升级为光分插复用节点时，OADM部分连接在第二光路上的一组连接端口之间，并且利用由光学分支的WDM信号光进行OADM部分的调整 分支耦合器，然后进行光开关的切换以选择第二光路侧的光。 结果，由于可以在短时间内将操作状态从光放大重复节点切换到OADM节点，所以可以以低的初始安装成本提供持续的通信服务。

公开(公告)号：US08681420B2

公开(公告)日：2014-03-25

申请号：US13169136

申请日：2011-06-27

申请人： Yasushi Sugaya ,  Takehiro Fujita

发明人： Yasushi Sugaya ,  Takehiro Fujita

IPC分类号： H04B10/17 ,  H04J1/00

CPC分类号： H01S3/06762 ,  H01S3/06766 ,  H01S3/06775 ,  H01S2301/06 ,  H04B10/2572 ,  H04B10/2941

摘要： An optical transmission system includes an optical transmitter that sends signal light to a transmission path, an optical receiver that receives the signal light from the transmission path, and an optical amplifier that is provided on the transmission path and that amplifies the signal light, the optical amplifier being configured to control a gain characteristic of the optical amplifier such that a power of signal light having a wavelength included within a wavelength range in which polarization hole burning occurs is higher than a power of another signal light having a wavelength outside the wavelength range.

摘要翻译： 一种光传输系统包括：向传输路径发送信号光的光发射机;接收来自传输路径的信号光的光接收机;以及设置在传输路径上并放大信号光的光放大器， 放大器被配置为控制光放大器的增益特性，使得包含在发生极化孔燃烧的波长范围内的波长的信号光的功率高于具有波长范围外的波长的另一信号光的功率。

公开(公告)号：US07522839B2

公开(公告)日：2009-04-21

申请号：US11319376

申请日：2005-12-29

申请人： Miki Onaka ,  Yasushi Sugaya ,  Takahumi Terahara ,  Satoru Okano ,  Takehiro Fujita ,  Hiroaki Tomofuji ,  Ichiro Nakajima

发明人： Miki Onaka ,  Yasushi Sugaya ,  Takahumi Terahara ,  Satoru Okano ,  Takehiro Fujita ,  Hiroaki Tomofuji ,  Ichiro Nakajima

IPC分类号： H04B10/08 ,  H04J14/02

CPC分类号： H04J14/0221 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0219

摘要： An optical node apparatus according to the present invention amplifies a WDM signal light input to an input port, and thereafter, branches the amplified WDM signal light by an optical branching coupler to send the branched lights to first and second optical paths, and selects the light propagated through the first optical path by an optical switch to amplify the selected light by a post-amplifier, thereby outputting the amplified light from an output port, when the optical node apparatus is operated as an optical amplification repeating node. When the operational state is upgraded to an optical add/drop multiplexing node, an OADM section is connected between a set of connecting ports on the second optical path, and the adjustment of the OADM section is performed utilizing the WDM signal light branched by the optical branching coupler, and thereafter, the switching of the optical switch is performed to select the light on the second optical path side. As a result, since the switching the operational state from the optical amplification repeating node to the OADM node can be performed in a short time, it becomes possible to provide the continued communication service at the low initial installation cost.

摘要翻译： 根据本发明的光节点装置放大输入到输入端口的WDM信号光，然后通过光分路耦合器对放大的WDM信号光进行分支，以将分支光发送到第一和第二光路，并选择光 通过光开关通过第一光路传播，以通过后置放大器放大所选择的光，从而当光节点装置作为光放大重复节点工作时，从输出端口输出放大的光。 当操作状态升级为光分插复用节点时，OADM部分连接在第二光路上的一组连接端口之间，并且利用由光学分支的WDM信号光进行OADM部分的调整 分支耦合器，然后进行光开关的切换以选择第二光路侧的光。 结果，由于可以在短时间内将操作状态从光放大重复节点切换到OADM节点，所以可以以低的初始安装成本提供持续的通信服务。

公开(公告)号：US20090226167A1

公开(公告)日：2009-09-10

申请号：US12399275

申请日：2009-03-06

申请人： Miki Onaka ,  Yasushi Sugaya ,  Takahumi Terahara ,  Satoru Okano ,  Takehiro Fujita ,  Hiroaki Tomofuji ,  Ichiro Nakajima

发明人： Miki Onaka ,  Yasushi Sugaya ,  Takahumi Terahara ,  Satoru Okano ,  Takehiro Fujita ,  Hiroaki Tomofuji ,  Ichiro Nakajima

IPC分类号： H04J14/00

CPC分类号： H04J14/0221 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0219

摘要： An optical node apparatus according to the present invention amplifies a WDM signal light input to an input port, and thereafter, branches the amplified WDM signal light by an optical branching coupler to send the branched lights to first and second optical paths, and selects the light propagated through the first optical path by an optical switch to amplify the selected light by a post-amplifier, thereby outputting the amplified light from an output port, when the optical node apparatus is operated as an optical amplification repeating node. When the operational state is upgraded to an optical add/drop multiplexing node, an OADM section is connected between a set of connecting ports on the second optical path, and the adjustment of the OADM section is performed utilizing the WDM signal light branched by the optical branching coupler, and thereafter, the switching of the optical switch is performed to select the light on the second optical path side. As a result, since the switching the operational state from the optical amplification repeating node to the OADM node can be performed in a short time, it becomes possible to provide the continued communication service at the low initial installation cost.

摘要翻译： 根据本发明的光节点装置放大输入到输入端口的WDM信号光，然后通过光分路耦合器对放大的WDM信号光进行分支，以将分支光发送到第一和第二光路，并选择光 通过光开关通过第一光路传播，以通过后置放大器放大所选择的光，从而当光节点装置作为光放大重复节点工作时，从输出端口输出放大的光。 当操作状态升级为光分插复用节点时，OADM部分连接在第二光路上的一组连接端口之间，并且利用由光学分支的WDM信号光进行OADM部分的调整 分支耦合器，然后进行光开关的切换以选择第二光路侧的光。 结果，由于可以在短时间内将操作状态从光放大重复节点切换到OADM节点，所以可以以低的初始安装成本提供持续的通信服务。

公开(公告)号：US20080002978A1

公开(公告)日：2008-01-03

申请号：US11319376

申请日：2005-12-29

申请人： Miki Onaka ,  Yasushi Sugaya ,  Takahumi Terahara ,  Satoru Okano ,  Takehiro Fujita ,  Hiroaki Tomofuji ,  Ichiro Nakajima

发明人： Miki Onaka ,  Yasushi Sugaya ,  Takahumi Terahara ,  Satoru Okano ,  Takehiro Fujita ,  Hiroaki Tomofuji ,  Ichiro Nakajima

IPC分类号： H04B10/16

CPC分类号： H04J14/0221 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0219

摘要： An optical node apparatus according to the present invention amplifies a WDM signal light input to an input port, and thereafter, branches the amplified WDM signal light by an optical branching coupler to send the branched lights to first and second optical paths, and selects the light propagated through the first optical path by an optical switch to amplify the selected light by a post-amplifier, thereby outputting the amplified light from an output port, when the optical node apparatus is operated as an optical amplification repeating node. When the operational state is upgraded to an optical add/drop multiplexing node, an OADM section is connected between a set of connecting ports on the second optical path, and the adjustment of the OADM section is performed utilizing the WDM signal light branched by the optical branching coupler, and thereafter, the switching of the optical switch is performed to select the light on the second optical path side. As a result, since the switching the operational state from the optical amplification repeating node to the OADM node can be performed in a short time, it becomes possible to provide the continued communication service at the low initial installation cost.

摘要翻译： 根据本发明的光节点装置放大输入到输入端口的WDM信号光，然后通过光分路耦合器对放大的WDM信号光进行分支，以将分支光发送到第一和第二光路，并选择光 通过光开关通过第一光路传播，以通过后置放大器放大所选择的光，从而当光节点装置作为光放大重复节点工作时，从输出端口输出放大的光。 当操作状态升级为光分插复用节点时，OADM部分连接在第二光路上的一组连接端口之间，并且利用由光学分支的WDM信号光进行OADM部分的调整 分支耦合器，然后进行光开关的切换以选择第二光路侧的光。 结果，由于可以在短时间内将操作状态从光放大重复节点切换到OADM节点，所以可以以低的初始安装成本提供持续的通信服务。

公开(公告)号：US08615167B2

公开(公告)日：2013-12-24

申请号：US13230048

申请日：2011-09-12

申请人： Yasushi Sugaya ,  Takehiro Fujita ,  Satoru Okano

发明人： Yasushi Sugaya ,  Takehiro Fujita ,  Satoru Okano

IPC分类号： H04B10/08 ,  H04J14/02

CPC分类号： H04B10/2935 ,  H04B10/294 ,  H04J14/0221

摘要： A WDM optical transmission system includes a plurality of optical nodes optically coupled by a transmission line, a processor that is operative to calculate an amount of adjustment of a reception level capable of increasing an optical signal-to-noise ratio for each channel of the WDM light reaching the optical node positioned at a receiving end of the unit section based on information on amplification operation of the WDM light in at least one optical-amplification repeating node disposed on the optical transmission line in the unit section, and to adjust a power level corresponding to each channel of the WDM light transmitted on the transmission line from the optical node positioned at a transmission end of the unit section in accordance with a calculation result of the calculation.

摘要翻译： WDM光传输系统包括通过传输线光耦合的多个光学节点，处理器，其可操作以计算能够增加WDM的每个信道的光信噪比的接收电平的调整量 基于设置在单元部分中的光传输线路上的至少一个光放大重复节点中的WDM光的放大操作的信息的信息，到位于单元部分的接收端的光节点的光，并且调整功率电平 对应于根据计算的计算结果，从位于单元部分的发送端的光节点在传输线上传输的WDM光的每个信道。

公开(公告)号：US20120002270A1

公开(公告)日：2012-01-05

申请号：US13169136

申请日：2011-06-27

申请人： Yasushi SUGAYA ,  Takehiro Fujita

发明人： Yasushi SUGAYA ,  Takehiro Fujita

IPC分类号： H01S3/00

CPC分类号： H01S3/06762 ,  H01S3/06766 ,  H01S3/06775 ,  H01S2301/06 ,  H04B10/2572 ,  H04B10/2941

摘要： An optical transmission system includes an optical transmitter that sends signal light to a transmission path, an optical receiver that receives the signal light from the transmission path, and an optical amplifier that is provided on the transmission path and that amplifies the signal light, the optical amplifier being configured to control a gain characteristic of the optical amplifier such that a power of signal light having a wavelength included within a wavelength range in which polarization hole burning occurs is higher than a power of another signal light having a wavelength outside the wavelength range.

摘要翻译： 一种光传输系统包括：向传输路径发送信号光的光发射机;接收来自传输路径的信号光的光接收机;以及设置在传输路径上并放大信号光的光放大器， 放大器被配置为控制光放大器的增益特性，使得包含在发生极化孔燃烧的波长范围内的波长的信号光的功率高于具有波长范围外的波长的另一信号光的功率。

公开(公告)号：US09560368B2

公开(公告)日：2017-01-31

申请号：US13132426

申请日：2009-11-27

申请人： Masashi Takahashi ,  Muneaki Yamaguchi ,  Hiroaki Ito ,  Takehiro Fujita

发明人： Masashi Takahashi ,  Muneaki Yamaguchi ,  Hiroaki Ito ,  Takehiro Fujita

IPC分类号： H04N7/26 ,  H04N19/44 ,  H04N19/52 ,  H04N19/51

CPC分类号： H04N19/52 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/44 ,  H04N19/51 ,  H04N19/61

摘要： High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.

摘要翻译： 使用少量的编码位提供高质量视频。 运动图像解码方法执行帧间预测处理。 利用上述帧间预测处理，组合具有已经被解码的多个块中的运动矢量中具有相似运动矢量的块，并且计算组合区域。 使用上述组合区域的运动矢量来计算要解码的目标块的预测向量，并且基于上述预测矢量和包括在编码流中的差分矢量来计算上述目标块的运动矢量 那是输入。 使用上述运动矢量生成预测图像，并且添加包括在上述编码流和上述预测图像中的差分图像以生成解码图像。

公开(公告)号：US20120230680A1

公开(公告)日：2012-09-13

申请号：US13396940

申请日：2012-02-15

申请人： Takehiro Fujita ,  Shigeru Ishii ,  Takuya Miyashita

发明人： Takehiro Fujita ,  Shigeru Ishii ,  Takuya Miyashita

IPC分类号： H04B10/08 ,  H04B10/12

CPC分类号： H04B10/0793 ,  H04B10/0795 ,  H04J14/0227 ,  H04J14/0267 ,  H04J14/0271 ,  H04J14/0278 ,  H04Q2213/1301 ,  H04Q2213/13345

摘要： There is provided a method of determining transmission quality of a path in an optical communication network system obtained by connecting a plurality of networks, the method including: acquiring a value representing transmission performance corresponding to a network condition of each of spans in the path in the optical communication network system; and determining the transmission quality of the path on the basis of the acquired value representing transmission performance corresponding to the network condition of each of spans.

摘要翻译： 提供了一种确定通过连接多个网络获得的光通信网络系统中的路径的传输质量的方法，所述方法包括：获取表示与所述路径中的每个跨度的网络状况相对应的传输性能的值 光通信网络系统; 并且基于所获取的表示与每个跨度的网络条件相对应的传输性能的值来确定路径的传输质量。

公开(公告)号：US20100247095A1

公开(公告)日：2010-09-30

申请号：US12814646

申请日：2010-06-14

申请人： Takehiro Fujita ,  Koji Takeguchi ,  Junji Yamamoto

发明人： Takehiro Fujita ,  Koji Takeguchi ,  Junji Yamamoto

IPC分类号： H04B10/08

CPC分类号： H04J14/0291 ,  H04J3/14 ,  H04J14/029

摘要： When line trouble occurs in an optical network, the restoration time can be reduced. A transponder 21 includes an active line and a standby line 43, and a transponder 22 includes an active line 42 and a standby line 44. The standby line 44 of the transponder 22 is accommodated in the same optical line as the active line 41 of the transponder 21. Upon detection of line trouble, the receiving transponder 24 acquires a VDC setting value for the active line 41, and sets the VDC setting value for the standby line 44 on the basis of the acquired VDC setting value.

摘要翻译： 当光网络发生线路故障时，可以减少恢复时间。 应答器21包括有源线路和备用线路43，并且应答器22包括有源线路42和备用线路44.应答器22的待机线路44被容纳在与该线路的有源线路41相同的光学线路中 应答器21.在检测到线路故障时，接收转发器24获取有源线路41的VDC设定值，并根据取得的VDC设定值设定备用线路44的VDC设定值。