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21. 发明专利

JP2011228800A Subscriber side device, optical communication system and optical communication method 有权
标题翻译：订户侧设备，光通信系统和光通信方法
公开(公告)号：JP2011228800A
公开(公告)日：2011-11-10
申请号：JP2010094265
申请日：2010-04-15
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YOSHINO MANABU , HARA KAZUTAKA , NAKAMURA HIROTAKA , KIMURA SHUNJI
IPC分类号： H04L12/44 , H04B10/27 , H04B10/272 , H04J14/00 , H04J14/02 , H04J14/08
摘要： PROBLEM TO BE SOLVED: To provide an optical network unit (ONU), optical communication system, and optical communication method which are applicable to a system in which wavelength division multiplex or core multiplex is combined with time division multiplex and which is capable of leveling traffic in selection of wavelength, route or combination of these.SOLUTION: An optical network unit (ONU) 100 monitors a communication state for each wavelength of an optical signal received by an optical transceiver, detects a wavelength for which congestion is the lightest among the communication states or a wavelength for which congestion is equal to or less than a predetermined threshold value among the communication states, selects the wavelength for a downlink optical signal as well as selects for an uplink optical signal a wavelength corresponding to the wavelength selected for the downlink optical signal, and performs a setting up operation for requesting registration of the selected wavelengths for the downlink optical signal and the uplink optical signal on an OLT200.
摘要翻译：要解决的问题：提供一种适用于波分多路复用或核心多路复用与时分复用组合的系统的光网络单元（ONU），光通信系统和光通信方法，其能够调整流量的波长，路线或组合的选择。解决方案：光网络单元（ONU）100监视由光收发器接收的光信号的每个波长的通信状态，检测通信状态中拥塞最轻的波长或拥塞为在通信状态之中等于或小于预定阈值，选择下行链路光信号的波长，并选择上行光信号对应于针对下行光信号选择的波长的波长，并执行建立操作用于请求在OLT200上注册所选择的下行光信号和上行光信号的波长。版权所有（C）2012，JPO＆INPIT

22. 发明专利

JP2011147022A Communication system, transmitter, receiver, and communication method 有权
标题翻译：通信系统，发射机，接收机和通信方法
公开(公告)号：JP2011147022A
公开(公告)日：2011-07-28
申请号：JP2010007297
申请日：2010-01-15
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YOSHINO MANABU , HARA KAZUTAKA , NAKAMURA HIROTAKA , KIMURA SHUNJI
IPC分类号： H04L12/44 , H04B10/032 , H04B10/27 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide a communication system, a transmitter, a receiver and a communication method, for suppressing transmission interval fluctuation and band fluctuation in information following switching or the like within a permissible range of an application to be transmitted. SOLUTION: A control circuit outputs second storage information from a second storage circuit 22 at time after prescribed time from when information is input to a first storage circuit 11 in an input band where the information is input to the first storage circuit 11 of an optical transmitter 10A at time t under normal conditions. The control circuit outputs the information stored in the second storage circuit from the second storage circuit 22 in the input band before communication disconnection also when the communication disconnection following a wavelength change or the like of reception information occurs. The control circuit suppresses the communication disconnection of the wavelength change or the like until the second storage circuit 22 stores at least a prescribed amount of information, or storage in the first storage circuit is lost when communication recovers after the communication disconnection, and simultaneously transfers the information stored in the first storage circuit 11 of the optical transmitter 10A to the second storage circuit 22 in a band not less than the input band. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种通信系统，发射机，接收机和通信方法，用于抑制要发送的应用的允许范围内的切换等之后的信息中的传输间隔波动和频带波动。解决方案：控制电路在从信息输入到第一存储电路11的规定时间后的第二存储电路22输出第二存储信息到信息被输入到第一存储电路11的输入频带在正常条件下在时间t的光发射机10A。控制电路在通信断开之前的输入频带中的第二存储电路22中存储的信息也在发生接收信息的波长变化等之后的通信断开时输出。控制电路抑制波长变化等的通信断开，直到第二存储电路22存储至少规定量的信息，或者在通信断开后的通信恢复时，第一存储电路中的存储丢失，同时将存储在光发送器10A的第一存储电路11中的信息到不小于输入频带的频带到第二存储电路22。版权所有（C）2011，JPO＆INPIT

23. 发明专利

JP2011139320A Optical communication system, station-side device, subscriber-side device, and optical communication method 有权
标题翻译：光通信系统，站侧设备，订户侧设备和光通信方法
公开(公告)号：JP2011139320A
公开(公告)日：2011-07-14
申请号：JP2009298244
申请日：2009-12-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YOSHINO MANABU , HARA KAZUTAKA , NAKAMURA HIROTAKA , KIMURA SHUNJI
IPC分类号： H04L12/44 , H04B10/27 , H04B10/272 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an optical communication system capable of performing the allocation of a wavelength, a route, a combination of the wavelength and the route using communication related to the control of an existing MAC layer without adding a new massage for transmitting an available wavelength, a route or a combination of the wavelength and the route, an OLT, an ONU, and an optical communication method. SOLUTION: A control circuit monitors the communication state of an optical access network, and changes wavelengths to be allocated to ONUs (100A, 100B, 100C) by issuing an instruction to an OLT 200 in accordance with the communication state to make the OLT 200 carry out the de-registering and registering of the ONUs (100A, 100B, 100C). COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种光通信系统，其能够使用与现有MAC层的控制相关的通信来进行波长分配，路由，组合，而不添加新的按摩用于发送可用波长，路由或波长与路由的组合，OLT，ONU和光通信方法。解决方案：控制电路监视光接入网络的通信状态，并通过根据通信状态向OLT200发出指令来改变要分配给ONU（100A，100B，100C）的波长，以使 OLT200执行ONU（100A，100B，100C）的注销和注册。版权所有（C）2011，JPO＆INPIT

24. 发明专利

JP2011055407A Optical communication system, optical communication method, control apparatus, program, and recording medium 有权
标题翻译：光通信系统，光通信方法，控制装置，程序和记录介质
公开(公告)号：JP2011055407A
公开(公告)日：2011-03-17
申请号：JP2009204569
申请日：2009-09-04
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KIMURA SHUNJI , YOSHINO MANABU , NAKAMURA HIROTAKA , HARA KAZUTAKA
IPC分类号： H04L12/44 , H04B10/27 , H04B10/272 , H04J3/00 , H04J14/00 , H04J14/02 , H04J14/08
摘要： PROBLEM TO BE SOLVED: To implement economical uplink communication by reducing the number of wavelengths to be used for each slave node without considerably deteriorating a high transmission capacity that WDM/TDM-PON has, or a function for flexibly allocating a band requested from the slave node. SOLUTION: A slave node 19 comprises a function for selecting a transmission wavelength from at least two or more wavelengths in (k) kinds of wavelengths, and a master node 16 comprises L pieces of optical receivers including an optical receiver for selectively receiving optical signals, which are not overlapped on time bases of at least two or more wavelengths, from optical signals of the (k) kinds of wavelengths. The wavelength, that the optical receiver 17 for selective reception may select, is spread over slave nodes 19 of different transmission wavelengths. When assigning a transmission time applied from the slave node 19 to the L pieces of optical receivers 17 as a signal reception time during a unit time, the master node 16 determines and controls, a selection transmission wavelength of the slave node 19, a transmission time and a transmission timing of the slave node 19, and a switching timing of a reception wavelength of each of the optical receivers 17 so as to smooth the signal reception time among the L pieces of optical receivers. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过减少每个从节点使用的波长数量来实现经济的上行链路通信，而不会使WDM / TDM-PON具有的高传输容量显着恶化，或者用于灵活地分配所请求的频带的功能从从节点。解决方案：从节点19包括用于从（k）种波长中的至少两个或更多个波长选择传输波长的功能，并且主节点16包括L个光接收器，包括用于选择性地接收的光接收器在（k）种波长的光信号中不与至少两个或更多个波长的时间基准重叠的光信号。用于选择性接收的光接收机17可以选择的波长分布在不同传输波长的从节点19上。当在单位时间内将从从节点19施加的传输时间分配给L个光接收机17作为信号接收时间时，主节点16确定并控制从节点19的选择传输波长的传输时间和从节点19的发送定时，以及每个光接收机17的接收波长的切换定时，以平滑L个光接收机之间的信号接收时间。版权所有（C）2011，JPO＆INPIT

25. 发明专利

JP2010154064A Optical transmission system and optical transmission method 有权
标题翻译：光传输系统和光传输方法
公开(公告)号：JP2010154064A
公开(公告)日：2010-07-08
申请号：JP2008328082
申请日：2008-12-24
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YOSHINO MANABU , HARA KAZUTAKA , NAKAMURA HIROTAKA , KIMURA SHUNJI
IPC分类号： H04B10/2507 , H04B10/03 , H04B10/032 , H04B10/079 , H04B10/2513 , H04B10/27 , H04B10/272 , H04B10/54 , H04B10/564 , H04J14/00 , H04J14/02 , H04L12/44
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission system and an optical transmission method that improve the existing communications devices and makes an optical transmission line redundant, and that attain improvement in resistance against troubles, while suppressing an increase in costs. SOLUTION: The optical transmission system is configured to connect a transmission-side communication device 100 and a reception-side communications device 110 by an optical transmission line 121. The transmission-side communications device 100 has a transmitter 11-1 and a transmitter 11-2 that transmit a plurality of signal lights, intensity-modulated by the same data and having mutually-different wavelengths λs1 and λs2, via the optical transmission line 121. The reception-side communication device 110 facing the transmission-side communications device 100 has one receiver 15 that collectively receives the plurality of signal lights from the optical transmission line 121. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种改善现有通信设备并使光传输线冗余的光传输系统和光传输方法，并且在抑制成本增加的同时提高抗故障性。解决方案：光传输系统被配置为通过光传输线121连接发射侧通信设备100和接收侧通信设备110.发射侧通信设备100具有发射机11-1和发送器11-2，其经由光传输线121发送由相同数据强度调制并具有相互不同的波长λs1和λs2的多个信号光。面向发送侧通信设备的接收侧通信设备110 100具有从光传输线121共同接收多个信号光的一个接收器15.版权所有（C）2010，JPO＆INPIT

26. 发明专利

JP2010028263A Amplitude limit amplifier circuit 审中-公开
标题翻译： AMPLITUDE限幅放大器电路
公开(公告)号：JP2010028263A
公开(公告)日：2010-02-04
申请号：JP2008184530
申请日：2008-07-16
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KIMURA SHUNJI , NAKAMURA HIROTAKA , HARA KAZUTAKA
IPC分类号： H03F3/45 , H03G11/00
摘要： PROBLEM TO BE SOLVED: To use differential input, and reduce loss of input signal power. SOLUTION: The amplitude limit amplifier circuit includes a first stage differential amplifier circuit 3A and a second stage differential amplifier 6. The first stage differential amplifier circuit 3A is provided with: an average value detecting circuit 5A whose input side is connected to an external input terminal 1; a differential type amplitude limit amplifier circuit 4A whose non-inverting input terminal is connected to the external input terminal 1, and inverting input terminal is connected to an output side of the average value detecting circuit 5A; an average value detecting circuit 5B whose input side is connected to an external input terminal 2; and a differential type amplitude limit amplifier circuit 4B whose non-inverting input terminal is connected to the external input terminal 2, inverting input terminal is connected to an output side of the average value detecting circuit 5B, and inverting output terminal pair is connected in parallel in the same phase combination to a differential output terminal pair of the differential type amplitude limit amplifier circuit 4A. The second stage differential amplifier circuit 6 is provided with: an average value detecting circuit 5C whose input side is connected to one terminal of the differential output terminal pair of the first stage differential amplifier circuit 3A; and a differential type amplitude limit amplifier circuit 7 whose non-inverting input terminal is connected to the output side of the average detecting circuit 5C, and inverted input terminal is connected to the other terminal of the differential output terminal pair of the first stage differential amplifier circuit 3A. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：使用差分输入，并减少输入信号功率的损耗。解决方案：幅度限幅放大器电路包括第一级差分放大器电路3A和第二级差分放大器6.第一级差分放大器电路3A具有：平均值检测电路5A，其输入侧连接到外部输入端子1; 其非反相输入端子连接到外部输入端子1的反相输入端子的差分型限幅放大器电路4A连接到平均值检测电路5A的输出侧; 平均值检测电路5B，其输入侧连接到外部输入端子2; 以及其非反相输入端子连接到外部输入端子2的差分型限幅放大器电路4B，反相输入端子连接到平均值检测电路5B的输出侧，并且反相输出端子对并联在与差分型限幅放大器电路4A的差分输出端子对相同的相位组合中。第二级差分放大电路6具有：平均值检测电路5C，其输入侧连接到第一级差分放大器电路3A的差分输出端子对的一个端子; 以及差分型限幅放大电路7，其非反相输入端连接到平均检测电路5C的输出侧，反相输入端连接到第一级差分放大器的差分输出端子对的另一端电路3A。版权所有（C）2010，JPO＆INPIT

27. 发明专利

JP2009260759A Light transmission device and light transmission method 有权
标题翻译：光传输设备和光传输方法
公开(公告)号：JP2009260759A
公开(公告)日：2009-11-05
申请号：JP2008108523
申请日：2008-04-18
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YOSHINO MANABU , NAKAMURA HIROTAKA
IPC分类号： H04B10/2507 , G02F1/015 , H04B10/40 , H04B10/50 , H04B10/516 , H04B10/54 , H04B10/548 , H04B10/60 , H04B10/61
摘要： PROBLEM TO BE SOLVED: To provide a light transmission device and a light transmission method for reducing transmission deterioration because of frequency chirp.
SOLUTION: This light transmission device is configured to transmit an optical signal by performing intensity modulation by a light modulator in which frequency chirp is generated accompanied by phase modulation in the case of modulating the rays of light, and characterized to use a first light modulator 12 and a second light modulator 13 of α parameter by which the sum of frequency chirp is set to almost zero, or to decrease or increase and restore the transmittance of the second light modulator 13 in the case of switching the value of data by which the first light modulator 12 is driven.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种由于频率啁啾而减少传输劣化的光传输装置和光传输方法。解决方案：该光传输装置被配置为通过在调制光线的情况下伴随着相位调制产生频率啁啾的光调制器执行强度调制来发送光信号，并且其特征在于使用第一光调制器12和α参数的第二光调制器13，其中将频率啁啾的总和设置为几乎为零，或者在将数据值切换为数据的情况下减小或增加并恢复第二光调制器13的透射率第一光调制器12被驱动。版权所有（C）2010，JPO＆INPIT

28. 发明专利

JP2008141467A Eye monitoring method, eye monitor circuit, optical receiving method and optical receiver 有权
标题翻译：眼睛监测方法，眼睛监测电路，光接收方法和光接收机
公开(公告)号：JP2008141467A
公开(公告)日：2008-06-19
申请号：JP2006325481
申请日：2006-12-01
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YOSHIDA TOMOAKI , NAKAMURA MAKOTO , NAKAMURA HIROTAKA , KIMURA SHUNJI
IPC分类号： H04B10/07 , H04B10/25 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/524 , H04B10/556 , H04B10/564 , H04B10/60 , H04B10/69 , H04L25/02
摘要： PROBLEM TO BE SOLVED: To attain an eye monitor circuit for detecting a signal deterioration amount due to wavelength dispersion in an optical fiber with a simple configuration.
SOLUTION: A received NRZ (Nonreturn to zero) signal amplified into constant amplitude is branched into three parts, the signals are determined with a threshold different in each branch and separately integrated, and a signal deterioration amount due to wavelength dispersion of an optical fiber transmission path is obtained on the basis of the magnitude of the entire inclinations of a line formed when enumerating respective integrated output values in a descending order or an ascending order to connecting the integrated output values.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：获得用于以简单的结构检测由于光纤中的波长色散引起的信号劣化量的眼睛监视电路。解决方案：将放大到恒定幅度的接收到的NRZ（非返回到零）信号分支为三部分，以每个分支中不同的阈值确定信号并分别积分，并且由于波长分散的信号劣化量基于当按照降序或升序来列举各个积分输出值时形成的线的整个倾斜度的大小来获得光纤传输路径以连接积分输出值。版权所有（C）2008，JPO＆INPIT

29. 发明专利

JP2007142503A Optical wavelength multiplex transmission system and snr calculating method 有权
标题翻译：光波长多传输系统和SNR计算方法
公开(公告)号：JP2007142503A
公开(公告)日：2007-06-07
申请号：JP2005329430
申请日：2005-11-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： NAKAMURA HIROTAKA , SUZUKI HIROO , IWATSUKI KATSUMI
IPC分类号： H04J14/00 , H01S3/10 , H04B10/07 , H04B10/079 , H04B10/2507 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To solve the problem that when input power is small, an error in calculation of a signal to noise ratio becomes large as a transmissive spectrum width of an optical multiplexer/demultiplexer becomes narrow and this causes difficulty in correct system design although when power of a non-modulation optical carrier to an optical amplifier is large, approximate calculation can be performed, in an optical wavelength multiplex transmission system for modulating an optical carrier after amplification. SOLUTION: In an optical wavelength multiplex transmission system in which an optical amplifier is arranged in a prestage of an optical modulator, a naturally emitted component to be generated from the optical amplifier is used to calculate a signal to noise ratio. Thus, reception sensitivity and permissible loss can be correctly obtained. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了解决当输入功率小时，由于光复用器/解复用器的透射频谱宽度变窄，信噪比的计算误差变大，这导致难以正确系统设计虽然在用于光放大器的非调制光载波的功率大的情况下，在用于调制放大后的光载波的光波长多路复用传输系统中可以进行近似计算。解决方案：在其中光放大器布置在光调制器的前级的光波长多路复用传输系统中，使用从光放大器产生的自然发射的分量来计算信噪比。因此，可以正确地获得接收灵敏度和容许损失。版权所有（C）2007，JPO＆INPIT

30. 发明专利

JP2006074629A Wavelength-multiplexing optical receiver unit and optical communication system using the same 审中-公开
标题翻译：波长复用光接收单元和使用该光接收单元的光通信系统
公开(公告)号：JP2006074629A
公开(公告)日：2006-03-16
申请号：JP2004257665
申请日：2004-09-03
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SUZUKI HIROO , NAKAMURA HIROTAKA , IWATSUKI KATSUMI
IPC分类号： H04J14/00 , H04B10/07 , H04B10/079 , H04B10/29 , H04B10/294 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide a wavelength-multiplexing optical receiver unit and an optical communication system using the wavelength-multiplexing optical receiver unit, realizing highly sensitive reception and excellent expandability, with a low initial installation cost.
SOLUTION: An optical transmitter (30) includes one or a plurality of optical transmitters (140-1) for transmitting optical signals of non-overlapped frequencies, and an optical multiplexer (141) for multiplexing the optical signals received from the optical transmitter and making a wavelength-multiplexed optical signal incident into an optical fiber. An optical receiver unit (200) includes: an optical demultiplexer (210) for demultiplexing the wavelength-multiplexed optical signal being input via the optical fiber into one or a plurality of optical signals on a basis of each the above frequency; an optical amplifier (221) for amplifying one optical signal among the optical signals demultiplexed in the optical demultiplexer to desired optical power; a variable wavelength optical band-pass filter (222) for transmitting the optical signal amplified in the optical amplifier; and one or a plurality of optical reception means (220-1) each having an optical receiver (223) for receiving the optical signal transmitted through the variable wavelength optical band-pass filter.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供使用波分复用光接收单元的波长复用光接收单元和光通信系统，实现高灵敏度接收和优异的可扩展性，初始安装成本低。解决方案：光发射机（30）包括用于发射非重叠频率的光信号的一个或多个光发射机（140-1），以及一个用于多路复用从光学接收的光信号的光复用器（141）发射机并将入射到光纤中的波分复用光信号进行制造。光接收单元（200）包括：光解复用器（210），用于根据每个上述频率将经由光纤输入的波分复用光信号解复用为一个或多个光信号; 光放大器（221），用于将在光解复用器中解复用的光信号中的一个光信号放大到期望的光功率; 用于传输在光放大器中放大的光信号的可变波长光带通滤波器（222）; 以及一个或多个光接收装置（220-1），每个光接收装置具有用于接收通过可变波长光学带通滤波器发射的光信号的光接收器（223）。版权所有（C）2006，JPO＆NCIPI

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