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31. 发明授权

US08184976B2 Passive optical network system and operating method thereof 有权
标题翻译：无源光网络系统及其操作方法
公开(公告)号：US08184976B2
公开(公告)日：2012-05-22
申请号：US12388104
申请日：2009-02-18
申请人： Tohru Kazawa , Yusuke Yajima , Taishi Shinagawa
发明人： Tohru Kazawa , Yusuke Yajima , Taishi Shinagawa
IPC分类号： H04J14/00 , H04B10/00
CPC分类号： H04J3/0682 , H04J3/1694 , H04Q11/0067 , H04Q2011/0064 , H04Q2213/1301
摘要： The passive optical network includes a master station and slave stations connected via an optical fiber network including an optical splitter and a plurality of optical fibers. The master station includes a bandwidth control unit which decides a volume of a transmission signal to be granted to each slave station in every first period and in accordance with a request from the slave station, and a transmission timing control unit which decides, in one of a plurality of second periods and in accordance with the decided volume of the signal, transmission timing in which the slave station should transmit a signal. When the signal is to be transmitted by division over the plurality of second periods, the bandwidth control unit or the transmission timing control unit is controlled based on a volume of a signal to be attached by division processing, so that the granted signal can be transmitted in the first period.
摘要翻译：无源光网络包括通过包括光分路器和多个光纤的光纤网络连接的主站和从站。主站包括：带宽控制单元，其根据来自所述从站的请求，决定在每个第一周期中向每个从站授予的发送信号的音量;以及发送定时控制单元，其中，多个第二周期，并且根据确定的信号音量，从站应发送信号的发送定时。当通过多个第二周期的分割来发送信号时，基于要通过分割处理附加的信号的音量来控制带宽控制单元或发送定时控制单元，从而可以发送所允许的信号在第一时期。

32. 发明申请

US20070030937A1 Bit synchronization circuit with phase tracking function 失效
标题翻译：位同步电路具有相位跟踪功能
公开(公告)号：US20070030937A1
公开(公告)日：2007-02-08
申请号：US11299819
申请日：2005-12-13
申请人： Yusuke Yajima , Tohru Kazawa , Yoshihiro Ashi
发明人： Yusuke Yajima , Tohru Kazawa , Yoshihiro Ashi
IPC分类号： H03D3/24
CPC分类号： H04L7/0337 , H03L7/0814 , H03L7/087 , H03L7/091 , H04L7/0004 , H04L7/046
摘要： A bit synchronization circuit comprising an initial phase determining unit for rapidly determining, during a period of receiving a preamble of burst data, a clock with a phase synchronized with received burst data from among multi-phase clocks having the same frequency as an internal reference clock and a phase tracking unit for modifying the synchronized phase clock responsive to phase variation of received data during a period of receiving a payload of burst data by taking the synchronized phase clock determined by the initial phase determining unit as an initial phase. The bit synchronization circuit retimes burst data with a data retiming clock having a predetermined phase relation with the synchronized phase clock and outputs the burst data in synchronization with the internal reference clock.
摘要翻译：一种位同步电路，包括初始相位确定单元，用于在从脉冲串数据的前导码接收周期内快速确定具有与内部参考时钟相同频率的多相位时钟中的接收脉冲串数据同步的时钟以及相位跟踪单元，用于通过将由初始相位确定单元确定的同步相位时钟作为初始相位，在接收到突发数据的有效载荷的周期期间响应于接收数据的相位变化来修正同步相位时钟。位同步电路使用具有与同步相位时钟具有预定相位关系的数据重新定时时钟重新匹配突发数据，并且与内部参考时钟同步输出脉冲串数据。

33. 发明授权

US08204168B2 Bit synchronization circuit with phase tracking function 有权
标题翻译：位同步电路具有相位跟踪功能
公开(公告)号：US08204168B2
公开(公告)日：2012-06-19
申请号：US12349914
申请日：2009-01-07
申请人： Yusuke Yajima , Tohru Kazawa , Yoshihiro Ashi
发明人： Yusuke Yajima , Tohru Kazawa , Yoshihiro Ashi
IPC分类号： H04L7/00 , H03D3/24
CPC分类号： H04L7/0337 , H03L7/0814 , H03L7/087 , H03L7/091 , H04L7/0004 , H04L7/046
摘要： A bit synchronization circuit comprising an initial phase determining unit for rapidly determining, during a period of receiving a preamble of burst data, a clock with a phase synchronized with received burst data from among multi-phase clocks having the same frequency as an internal reference clock and a phase tracking unit for modifying the synchronized phase clock responsive to phase variation of received data during a period of receiving a payload of burst data by taking the synchronized phase clock determined by the initial phase determining unit as an initial phase. The bit synchronization circuit retimes burst data with a data retiming clock having a predetermined phase relation with the synchronized phase clock and outputs the burst data in synchronization with the internal reference clock.
摘要翻译：一种位同步电路，包括初始相位确定单元，用于在从脉冲串数据的前导码接收周期内快速确定具有与内部参考时钟相同频率的多相位时钟中的接收脉冲串数据同步的时钟以及相位跟踪单元，用于通过将由初始相位确定单元确定的同步相位时钟作为初始相位，在接收到突发数据的有效载荷的周期期间响应于接收数据的相位变化来修正同步相位时钟。位同步电路使用具有与同步相位时钟具有预定相位关系的数据重新定时时钟重新匹配突发数据，并且与内部参考时钟同步输出脉冲串数据。

34. 发明授权

US07483506B2 Bit synchronization circuit with phase tracking function 失效
标题翻译：位同步电路具有相位跟踪功能
公开(公告)号：US07483506B2
公开(公告)日：2009-01-27
申请号：US11299819
申请日：2005-12-13
申请人： Yusuke Yajima , Tohru Kazawa , Yoshihiro Ashi
发明人： Yusuke Yajima , Tohru Kazawa , Yoshihiro Ashi
IPC分类号： H04L7/00 , H04J3/06
CPC分类号： H04L7/0337 , H03L7/0814 , H03L7/087 , H03L7/091 , H04L7/0004 , H04L7/046
摘要： A bit synchronization circuit comprising an initial phase determining unit for rapidly determining, during a period of receiving a preamble of burst data, a clock with a phase synchronized with received burst data from among multi-phase clocks having the same frequency as an internal reference clock and a phase tracking unit for modifying the synchronized phase clock responsive to phase variation of received data during a period of receiving a payload of burst data by taking the synchronized phase clock determined by the initial phase determining unit as an initial phase. The bit synchronization circuit retimes burst data with a data retiming clock having a predetermined phase relation with the synchronized phase clock and outputs the burst data in synchronization with the internal reference clock.
摘要翻译：一种位同步电路，包括初始相位确定单元，用于在从脉冲串数据的前导码接收周期内快速确定具有与内部参考时钟相同频率的多相位时钟中的接收脉冲串数据同步的时钟以及相位跟踪单元，用于通过将由初始相位确定单元确定的同步相位时钟作为初始相位，在接收到突发数据的有效载荷的周期期间响应于接收数据的相位变化来修正同步相位时钟。位同步电路使用具有与同步相位时钟具有预定相位关系的数据重新定时时钟重新匹配突发数据，并且与内部参考时钟同步输出脉冲串数据。

35. 发明授权

US5500756A Optical fiber transmission system and supervision method of the same 失效
标题翻译：光纤传输系统和监控方法相同
公开(公告)号：US5500756A
公开(公告)日：1996-03-19
申请号：US23546
申请日：1993-02-26
申请人： Hideaki Tsushima , Shinya Sasaki , Yukio Nakano , Hiroyuki Nakano , Ryoji Tateyari , Hironari Matsuda , Kenji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Yano , Youichi Igarashi , Satoshi Aoki , Masahiro Takatori , Tohru Kazawa , Yoshihiro Ashi
发明人： Hideaki Tsushima , Shinya Sasaki , Yukio Nakano , Hiroyuki Nakano , Ryoji Tateyari , Hironari Matsuda , Kenji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Yano , Youichi Igarashi , Satoshi Aoki , Masahiro Takatori , Tohru Kazawa , Yoshihiro Ashi
IPC分类号： H04B10/02 , H04B10/08 , H04B10/17 , H04B10/18 , H04J14/02 , H04Q11/00 , H04Q11/04
CPC分类号： H04B10/291 , H04B10/0777 , H04B10/2537 , H04B10/2912 , H04B10/2914 , H04B10/299 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0279 , H04Q11/0062 , H04Q11/0478 , H04B2210/003 , H04B2210/071 , H04B2210/078 , H04J14/0226 , H04J14/0227 , H04J2203/0051 , H04Q2011/0069 , H04Q2011/0081 , H04Q2011/0083
摘要： An optical repeater for realizing transmission of supervisory information of an optical fiber transmission system without the output power of an optical fiber amplifier being reduced, wherein a supervisory optical transmitter and optical receiver with a wavelength which is similar to the wavelength of the pumping light source of the optical fiber amplifier are mounted, and on the input side of the optical repeater, pumping light is multiplexed in the forward direction and a supervisory optical signal, which is multiplexed in wavelength and transmitted, is demultiplexed simultaneously by the first wavelength multi- and demultiplexer and they are received by the supervisory optical receiver, and on the output side of the optical repeater, pumping light is muitiplexed in the reverse direction and a supervisory optical signal outputted from the supervisory optical transmitter is multiplexed by the second wavelength multi- and demultiplexer.
摘要翻译：用于实现光纤传输系统的监控信息的传输而不减少光纤放大器的输出功率的光中继器，其中，具有与波长相似的波长的监控光发射机和光接收机，安装光纤放大器，并且在光中继器的输入侧，泵浦光在正向复用，并且以波长和发送的多路复用的监控光信号由第一波长多路复用器和解复用器同时解复用并且由监控光接收器接收，在光中继器的输出侧，泵浦光在相反方向多路复用，从监控光发送器输出的监控光信号由第二波长多路复用器多路复用。

36. 发明授权

US08139950B2 Passive optical network system, optical line terminator and, communication method of passive optical network system 有权
标题翻译：无源光网络系统，光线路终端器，无源光网络系统通信方式
公开(公告)号：US08139950B2
公开(公告)日：2012-03-20
申请号：US12121229
申请日：2008-05-15
申请人： Masao Niibe , Tohru Kazawa , Yusuke Yajima , Takeshi Kiyose , Masahiko Mizutani
发明人： Masao Niibe , Tohru Kazawa , Yusuke Yajima , Takeshi Kiyose , Masahiko Mizutani
IPC分类号： H04B10/00 , H04J14/00 , H04J4/00 , H04J14/08
CPC分类号： H04Q11/0067 , H04Q2011/0064 , H04Q2011/0084
摘要： A passive optical network system (PON) has a plurality of OLTs and ONUs with different transmission rates. OLTs with different transmission rates share information of priority frames and destinations, and determine timing for frame transmission to ONUs so that the signal from each of the OLTs does not collide when multiplied in a splitter. OLTs transmit the data to the ONU as a burst signal to prevent the signals with different rates from colliding. ONU acquires the information of the following burst frames. ONU receives only the signal addressed to the own ONU or with the transmission rate of own ONU, therefore errors in ONUs can be avoided. OLT receives only the signal with the transmission rate of own OLT from ONUs based on the transmission timing from the ONUs shared by the line terminators, errors in OLTs can be avoided.
摘要翻译：无源光网络系统（PON）具有多个具有不同传输速率的OLT和ONU。具有不同传输速率的OLT共享优先级帧和目的地的信息，并确定向ONU发送帧的定时，使得来自每个OLT的信号在分离器中相乘时不会发生冲突。 OLT将数据作为突发信号发送到ONU，以防止具有不同速率的信号相互冲突。 ONU获取以下突发帧的信息。 ONU仅接收寻址到自己的ONU的信号或以自己的ONU的传输速率，因此可以避免ONU中的错误。基于来自线路终端机共享的ONU的传输定时，OLT仅从ONU接收到自身OLT的传输速率的信号，可以避免OLT中的错误。

37. 发明申请

US20090202242A1 PASSIVE OPTICAL NETWORK SYSTEM, OPTICAL LINE TERMINATOR AND, COMMUNICATION METHOD OF PASSIVE OPTICAL NETWORK SYSTEM 有权
标题翻译：被动光网络系统，光线路终端和被动光网络系统的通信方法
公开(公告)号：US20090202242A1
公开(公告)日：2009-08-13
申请号：US12121229
申请日：2008-05-15
申请人： Masao NIIBE , Tohru Kazawa , Yusuke Yajima , Takeshi Kiyose , Masahiko Mizutani
发明人： Masao NIIBE , Tohru Kazawa , Yusuke Yajima , Takeshi Kiyose , Masahiko Mizutani
IPC分类号： H04J14/00
CPC分类号： H04Q11/0067 , H04Q2011/0064 , H04Q2011/0084
摘要： A passive optical network system (PON) has a plurality of OLTs and ONUs with different transmission rates. OLTs with different transmission rates share information of priority frames and destinations, and determine timing for frame transmission to ONUs so that the signal from each of the OLTs does not collide when multiplied in a splitter. OLTs transmit the data to the ONU as a burst signal to prevent the signals with different rates from colliding. ONU acquires the information of the following burst frames. ONU receives only the signal addressed to the own ONU or with the transmission rate of own ONU, therefore errors in ONUs can be avoided. OLT receives only the signal with the transmission rate of own OLT from ONUs based on the transmission timing from the ONUs shared by the line terminators, errors in OLTs can be avoided.
摘要翻译：无源光网络系统（PON）具有多个具有不同传输速率的OLT和ONU。具有不同传输速率的OLT共享优先级帧和目的地的信息，并确定向ONU发送帧的定时，使得来自每个OLT的信号在分离器中相乘时不会发生冲突。 OLT将数据作为突发信号发送到ONU，以防止具有不同速率的信号相互冲突。 ONU获取以下突发帧的信息。 ONU仅接收寻址到自己的ONU的信号或以自己的ONU的传输速率，因此可以避免ONU中的错误。基于来自线路终端机共享的ONU的传输定时，OLT仅从ONU接收到自身OLT的传输速率的信号，可以避免OLT中的错误。

38. 发明授权

US08145055B2 Passive optical network system, optical line terminator and optical network unit 有权
标题翻译：无源光网络系统，光线路终端器和光网络单元
公开(公告)号：US08145055B2
公开(公告)日：2012-03-27
申请号：US12389675
申请日：2009-02-20
申请人： Masao Niibe , Masahiko Mizutani , Tohru Kazawa
发明人： Masao Niibe , Masahiko Mizutani , Tohru Kazawa
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04Q11/0067 , H04J3/0682 , H04J14/0226 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04Q2011/0064 , H04Q2011/0079
摘要： In a PON, at the time of ranging, an OLT (a master station) measures an optical level of a signal from at least an ONU (a slave station) capable of communicating at plural transmission speeds. The OLT determines the transmission speed applied to the ONU according to the measured level. Incidentally, the ONU may measure an optical level of a ranging request signal and determine the transmission speed. At a normal operation, when the OLT sends information of plural different transmission speeds to the ONU, a timing when a next frame reaches and transmission speed information are notified to the ONU. Based on the timing, the ONU receives only data of the transmission speed that can be handled. Besides, the OLT switches the transmission speed to receive data based on a grant designation transmitted from the plural ONUs to the OLT.
摘要翻译：在PON中，在测距时，OLT（主站）测量来自至少能够以多个传输速度进行通信的ONU（从站）的信号的光级。 OLT根据测量级别确定应用于ONU的传输速度。顺便提及，ONU可以测量测距请求信号的光级，并确定传输速度。在正常操作中，当OLT向ONU发送多个不同传输速度的信息时，下一帧到达的定时和传输速度信息被通知给ONU。基于定时，ONU仅接收可以处理的传输速度的数据。此外，OLT根据从多个ONU发送到OLT的授权指定，切换传输速度以接收数据。

39. 发明申请

US20080166127A1 Passive optical network system and wavelength assignment method 有权
标题翻译：无源光网络系统和波长分配方法
公开(公告)号：US20080166127A1
公开(公告)日：2008-07-10
申请号：US11819364
申请日：2007-06-27
申请人： Tohru Kazawa , Kenichi Sakamoto , Ryosuke Nishino
发明人： Tohru Kazawa , Kenichi Sakamoto , Ryosuke Nishino
IPC分类号： H04J14/02
CPC分类号： H04J14/0282 , H04J14/0226 , H04J14/0246 , H04J14/025
摘要： In a PON system with WDM, at the time of initial setting, each ONU negotiates with an OLT, and automatically acquires a wavelength which can be used by the ONU. One wavelength for negotiation of assigned wavelength is fixed as a default, and a newly connected ONU first uses the wavelength. The OLT 200 includes a plurality of light sources for downstream communication. The ONU 300 includes a wavelength variable filter selectively receiving one of wavelengths of downstream communication, and a wavelength variable light source selectively emitting light of one of plural wavelengths for upstream communication. The ONU 300 uses a transmission wavelength (for example, λu32) for negotiation and transmits a wavelength assignment request 1000 to the OLT 200. The OLT 200 selects a wavelength λu1 to be assigned from unused wavelengths, and transmits wavelength information to the ONU 300. The OLT 200 and the ONU 300 communicates using the notified wavelengths.
摘要翻译：在具有WDM的PON系统中，在初始设置时，每个ONU与OLT协商，并自动获取ONU可以使用的波长。用于协调分配波长的一个波长作为默认值固定，并且新连接的ONU首先使用波长。 OLT 200包括用于下游通信的多个光源。 ONU300包括选择性地接收下游通信的波长之一的波长可变滤波器和选择性地发射多个波长中的一个的光的波长可变光源，用于上行通信。 ONU300使用传输波长（例如，lambdau 32）进行协商，并向OLT200发送波长分配请求1000。 OLT200从未使用的波长中选择要分配的波长lambdau 1，并向ONU300发送波长信息。 OLT200和ONU300使用所通知的波长进行通信。

40. 发明申请

US20080138072A1 PASSIVE OPTICAL NETWORK SYSTEM, OPTICAL LINE TERMINAL, AND OPTICAL NETWORK UNIT 有权
标题翻译：被动光网络系统，光线终端和光网络单元
公开(公告)号：US20080138072A1
公开(公告)日：2008-06-12
申请号：US11778247
申请日：2007-07-16
申请人： Kenichi SAKAMOTO , Tohru Kazawa
发明人： Kenichi SAKAMOTO , Tohru Kazawa
IPC分类号： H04J14/00
CPC分类号： H04J14/0282 , H04J14/0226 , H04J14/0232 , H04J14/0238 , H04J14/0246 , H04J14/025
摘要： In a PON system by WDM, IP broadcast can be received without oppressing a band used by a user for Internet communication. An OLT provides a first wavelength received in common by respective ONUs and plural second wavelengths by which the OLT and the respective ONUs perform communication individually. With respect to signals in the downstream direction, each of the OLTs includes a transmitter to transmit the first wavelength and plural transmitters to transmit the second wavelengths used for the individual communication with the respective ONUs. Each of the ONUs includes a receiver to receive the first wavelength and a receiver to receive the second wavelength used in the ONU itself. The OLT transmits data of the IP broadcast by the first wavelength and transmits individual data of each of the ONUs by the second wavelength corresponding to the ONU.
摘要翻译：在通过WDM的PON系统中，可以接收IP广播而不压迫用户使用的用于因特网通信的频带。 OLT提供通过相应ONU共同接收的第一波长和多个第二波长，OLT和各个ONU单独执行通信。对于下行方向的信号，每个OLT包括发送第一波长的发射机和多个发射机，以发射用于与各个ONU的单独通信的第二波长。每个ONU包括接收第一波长的接收机和用于接收在ONU本身中使用的第二波长的接收机。 OLT以第一波长发送IP广播的数据，并将每个ONU的个别数据发送到与ONU对应的第二波长。

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