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：US08891958B2

公开(公告)日：2014-11-18

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 ,  H04J14/02 ,  H04B10/079

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：US20100111536A1

公开(公告)日：2010-05-06

申请号：US12654072

申请日：2009-12-09

申请人： Shigeru Ishii ,  Takehiro Fujita

发明人： Shigeru Ishii ,  Takehiro Fujita

IPC分类号： H04J14/02

CPC分类号： H04B10/275 ,  H04B10/25253

摘要： A communication network includes a starting node that has a variable dispersion compensator that performs dispersion compensation at a variable dispersion compensation amount such that a residual dispersion amount of an optical signal transmitted therethrough becomes a predetermined reference residual dispersion amount; and plural nodes that are subjected to dispersion compensation design using the starting node as a starting point and that include fixed dispersion compensators selected based on the reference residual dispersion amount.

摘要翻译： 通信网络包括具有可变色散补偿器的起始节点，该可变色散补偿器以可变色散补偿量执行色散补偿，使得透过其中的光信号的残留色散量变为预定的参考残差色散量; 以及使用起始节点作为起始点进行色散补偿设计并且包括基于参考残差分散量选择的固定色散补偿器的多个节点。

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：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。

公开(公告)号：US20100158532A1

公开(公告)日：2010-06-24

申请号：US12640387

申请日：2009-12-17

申请人： Ryosuke GOTO ,  Takehiro Fujita

发明人： Ryosuke GOTO ,  Takehiro Fujita

IPC分类号： H04J14/02

CPC分类号： H04J14/0221 ,  H04B10/07955 ,  H04B10/2941 ,  H04J14/0212

摘要： There is provided a WDM transmission apparatus including a calculator being operable to calculate an optical signal level of a wavelength after wavelength demultiplexing based on information of OSNR, an amplifier controller being operable to compensate for the optical signal levels of all the wavelengths after wavelength demultiplexing to become a target level based on an optical signal level calculated by the calculator, and an deviation corrector being operable to correct a deviation of an optical signal level between each wavelength based on the optical signal level calculated by the calculator.

摘要翻译： 提供了一种WDM传输装置，包括：计算器，用于根据OSNR的信息计算波长解复用后的波长的光信号电平;放大器控制器，用于补偿波长解复用后的所有波长的光信号电平; 基于由计算器计算的光信号电平成为目标电平，偏差校正器可用于根据由计算器计算出的光信号电平来校正每个波长之间的光信号电平的偏差。

公开(公告)号：US07248804B2

公开(公告)日：2007-07-24

申请号：US10892241

申请日：2004-07-16

申请人： Taizo Maeda ,  Takehiro Fujita ,  Motoyoshi Sekiya

发明人： Taizo Maeda ,  Takehiro Fujita ,  Motoyoshi Sekiya

IPC分类号： H04B10/16

CPC分类号： H04B10/2931

摘要： Conventionally, an adjustment of an optical power level of an input Pin of an optical amplifier module is made with an optical variable attenuator. An optical coupler for measuring the optical power level of Pin and an optical variable attenuator are replaced by a variable optical coupler. The branch ratio of the variable optical coupler is varied, whereby the input optical power level Pin to an optical amplifier module is adjusted. As a result, an optical loss is reduced by an amount corresponding to the elimination of the optical attenuator, and also the OSNR of the optical amplifier module is improved.

摘要翻译： 通常，利用光可变衰减器对光放大器模块的输入Pin的光功率电平进行调整。 用于测量Pin和光可变衰减器的光功率电平的光耦合器由可变光耦合器代替。 改变可变光耦合器的分支比例，从而调整到光放大器模块的输入光功率电平Pin。 结果，光损耗减少了对应于光衰减器的消除量，并且光放大器模块的OSNR也得到改善。

公开(公告)号：US06321024B1

公开(公告)日：2001-11-20

申请号：US09426902

申请日：1999-10-26

申请人： Takehiro Fujita ,  Takafumi Miyatake ,  Akio Nagasaka ,  Katsumi Taniguchi

发明人： Takehiro Fujita ,  Takafumi Miyatake ,  Akio Nagasaka ,  Katsumi Taniguchi

IPC分类号： H04N5775

CPC分类号： H04N5/147 ,  G06F17/30825 ,  G06F17/3084 ,  G11B27/034 ,  G11B27/105 ,  G11B27/22 ,  G11B27/28 ,  G11B27/34 ,  G11B2220/20 ,  G11B2220/90

摘要： Only a video cut (containing a frame) designated by a user is automatically and correctly extracted directly from a video image under playing operation at high speed. A judgement is made as to whether or not the frame of the video image is designated by the user. When such a user designation is made, a detection is made of a change point in the video cut containing this designated frame (reverse playing direction, forward playing direction). Under such a condition that a frame image immediately before this change point is displayed, the playing operation of the video image is brought into a pause state. Accordingly, only the video cut desired by the user can be extracted during a single playing operation of the video image, and the video image can be edited in a high efficiency.

摘要翻译： 用户指定的视频剪辑（包含帧）只能在高速播放操作下直接从视频图像中直接提取。 判断视频图像的帧是否由用户指定。 当进行这样的用户指定时，检测包含该指定帧（反向播放方向，向前播放方向）的视频剪辑中的变化点。 在显示紧接在该变化点之前的帧图像的条件下，视频图像的播放操作进入暂停状态。 因此，可以在视频图像的单次播放操作期间仅提取用户期望的视频剪辑，并且可以高效率地编辑视频图像。

公开(公告)号：US20240311414A1

公开(公告)日：2024-09-19

申请号：US18591601

申请日：2024-02-29

申请人： Takehiro Fujita

发明人： Takehiro Fujita

IPC分类号： G06F16/38

CPC分类号： G06F16/38

摘要： An information processing apparatus includes circuitry to acquire, from a first data group, a second data group related to a person. The first data group includes a plurality of types of data. The circuitry extracts a character string indicating knowledge related to the person from the second data group and determines whether a sharing status of the knowledge is appropriate based on a third data group to obtain a determination result. The third data group is an extraction source of the character string in the second data group. The circuitry outputs information based on the determination result.

公开(公告)号：US07689131B2

公开(公告)日：2010-03-30

申请号：US10570840

申请日：2003-11-11

申请人： Kimio Uekama ,  Takehiro Fujita ,  Motoyoshi Sekiya

发明人： Kimio Uekama ,  Takehiro Fujita ,  Motoyoshi Sekiya

IPC分类号： H04B10/02

CPC分类号： H04J14/0246 ,  H04B10/0775 ,  H04B2210/077 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0279

摘要： A WDM system includes a plurality of P to P WDM systems connected for wavelength-multiplexing optical signals of a plurality of wavelengths, transmitting them to a transmission path, transmitting wavelength-division multiplexed light while performing amplification by using optical AMP in the transmission path, and subjecting the wavelength-division multiplexed light to wavelength isolation at the reception side. An OSC which is a monitoring control signal such as a normal optical signal is used closely within one P to P WDM system. However, by transmitting and receiving the OSC between a plurality of P to P WDM systems, it is possible to solve a problem at the system rise. Moreover, since accumulative OSNR data is transmitted up to the P to P WDM system of the final stage, it is possible to detect an accurate OSNR value and a leak ASE light quantity at the end side.

摘要翻译： WDM系统包括多个连接用于多个波长的波分复用光信号的多个P至P WDM系统，将它们发送到传输路径，在通过在传输路径中使用光AMP进行放大的同时发送波分复用光， 并且在接收侧对波分复用光进行波长隔离。 作为监视控制信号的正常光信号的OSC紧密地在一个P到P WDM系统内使用。 然而，通过在多个P至P WDM系统之间发送和接收OSC，可以解决系统上升的问题。 此外，由于累积OSNR数据被传送到最终级的P至P WDM系统，因此可以在端侧检测精确的OSNR值和泄漏的ASE光量。