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11. 发明授权

US07548694B2 Apparatus of adjusting optical signal transmission timing 失效
标题翻译：调整光信号传输定时的装置
公开(公告)号：US07548694B2
公开(公告)日：2009-06-16
申请号：US11730010
申请日：2007-03-29
申请人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima , Akihiko Tsuchiya , Yoshinobu Morita
发明人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima , Akihiko Tsuchiya , Yoshinobu Morita
IPC分类号： H04B10/20 , H04B14/00
CPC分类号： H04B10/272 , H04J3/0682 , H04J3/1694
摘要： In a light reception element such as an APD (Avalanche Photo Diode) used for receiving a high-speed and weak optical signal, it is possible to prevent the phenomenon of distortion of a signal inputted after a large-level light is received. A PON (Passive Optical Network) system includes an OLT (Optical Line Terminal) which can impartially and effectively transmit light reception data to each ONU (Optical Network Unit). According to a light reception amplitude received by each ONU, an inter-frame gap of an appropriate length is assigned for each ONU. The OLT includes a unit for measuring and accumulating the reception light amplitude and data on the inter-frame gap of an appropriate length decided in advance according to the characteristic of the light reception device and generates a grant value for assuring an inter-frame gap of an appropriate length by using the both information.
摘要翻译：在用于接收高速和弱光信号的APD（雪崩光电二极管）等光接收元件中，可以防止在接收到大电平光之后输入的信号的失真现象。 PON（Passive Optical Network，无源光网络）系统包括能够向每个ONU（Optical Network Unit，光网络单元）公正地有效地发送光接收数据的OLT（Optical Line Terminal）。根据每个ONU接收的光接收幅度，为每个ONU分配适当长度的帧间间隔。 OLT包括用于根据光接收装置的特性预先确定的适当长度的帧间隙上的接收光幅度和数据的测量和累加单元，并生成用于确保帧间间隔的帧间间隔的准许值通过使用这两个信息适当的长度。

12. 发明授权

US08457492B2 Optical access system 失效
标题翻译：光接入系统
公开(公告)号：US08457492B2
公开(公告)日：2013-06-04
申请号：US12785693
申请日：2010-05-24
申请人： Masaki Ohira , Tohru Kazawa , Yusuke Yajima , Akihiko Tsuchiya
发明人： Masaki Ohira , Tohru Kazawa , Yusuke Yajima , Akihiko Tsuchiya
IPC分类号： H04B10/20 , H04J14/00
CPC分类号： H04Q11/0067 , H04L1/0009 , H04L1/0025 , H04L1/0057 , H04L1/0075 , H04Q11/0071 , H04Q2011/0079
摘要： There are provided multiple candidates for FEC codes selectable for each of the ONTs. An OLT is provided with: means for storing redundancy and a code length of each FEC code in a table; means for selecting an FEC code; means for encoding or decoding data using the selected FEC code; means for calculating a bandwidth in consideration for the FEC redundancy and the code length with reference to the table during band assignment calculation; and means for notifying the destination ONT of the selected FEC code.
摘要翻译：为每个ONT提供可选择的FEC码的多个候选者。 OLT设置有：用于在表中存储冗余和每个FEC码的码长度的装置; 用于选择FEC码的装置; 用于使用所选择的FEC码对数据进行编码或解码的装置; 用于在频带分配计算期间参照该表计算考虑到FEC冗余和码长的带宽的装置; 以及用于向所述目的地ONT通知所选择的FEC码的装置。

13. 发明授权

US07680414B2 Passive optical network system and operating method thereof 失效
标题翻译：无源光网络系统及其操作方法
公开(公告)号：US07680414B2
公开(公告)日：2010-03-16
申请号：US11806130
申请日：2007-05-30
申请人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima
发明人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima
IPC分类号： H04J14/00
CPC分类号： H04J3/1694 , H04Q11/0067 , H04Q2011/0079
摘要： A Passive Optical Network system implementing a parent station capable of receiving high-speed burst signals transmitted from a plurality of subsidiary stations to a parent station, with excellent bandwidth utilization efficiency in the link from the stations to the parent. The system is provided with a configuration in which, when launched or an addition of a new subsidiary station, the parent stores threshold values appropriate for the received signals on the basis of the strength of the received signal for each subsidiary station, from among a plurality of preset threshold value candidates, and in response to the parent station's sending of a transmission grant with respect to each subsidiary station each time the subsidiary station transmitting optical signals changes, the stored threshold value corresponding to the subsidiary station is set in the receiver circuit.
摘要翻译：一种被动光网络系统，其实现能够接收从多个子站发送到母站的高速突发信号的母站，具有从站到母线的链路中良好的带宽利用效率。该系统具有这样的配置，其中当启动或添加新的辅助站时，母机根据每个辅助站的接收信号的强度从多个存储器中存储适合于接收信号的阈值并且响应于每次发送光信号的子站发送关于每个辅助站的发送授权时，在接收机电路中设置对应于该辅助站的所存储的阈值。

14. 发明申请

US20080187312A1 Passive optical network system and operating method thereof 失效
标题翻译：无源光网络系统及其操作方法
公开(公告)号：US20080187312A1
公开(公告)日：2008-08-07
申请号：US11806130
申请日：2007-05-30
申请人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima
发明人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima
IPC分类号： H04B10/13
CPC分类号： H04J3/1694 , H04Q11/0067 , H04Q2011/0079
摘要： A Passive Optical Network system implementing a parent station capable of receiving high-speed burst signals transmitted from a plurality of subsidiary stations to a parent station, with excellent bandwidth utilization efficiency in the link from the stations to the parent. The system is provided with a configuration in which, when launched or an addition of a new subsidiary station, the parent stores threshold values appropriate for the received signals on the basis of the strength of the received signal for each subsidiary station, from among a plurality of preset threshold value candidates, and in response to the parent station's sending of a transmission grant with respect to each subsidiary station each time the subsidiary station transmitting optical signals changes, the stored threshold value corresponding to the subsidiary station is set in the receiver circuit.
摘要翻译：一种被动光网络系统，其实现能够接收从多个子站发送到母站的高速突发信号的母站，具有从站到母线的链路中良好的带宽利用效率。该系统具有这样的配置，其中当启动或添加新的辅助站时，母机根据每个辅助站的接收信号的强度从多个存储器中存储适合于接收信号的阈值并且响应于每次发送光信号的子站发送关于每个辅助站的发送授权时，在接收机电路中设置对应于该辅助站的所存储的阈值。

15. 发明申请

US20110170871A1 APPARATUS OF ADJUSTING OPTICAL SIGNAL TRANSMISSION TIMING 失效
标题翻译：调整光信号传输时序的设备
公开(公告)号：US20110170871A1
公开(公告)日：2011-07-14
申请号：US13053827
申请日：2011-03-22
申请人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima , Akihiko Tsuchiya , Yoshinobu Morita
发明人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima , Akihiko Tsuchiya , Yoshinobu Morita
IPC分类号： H04J14/00
CPC分类号： H04B10/272 , H04J3/0682 , H04J3/1694
摘要： In a light reception element such as an APD (Avalanche Photo Diode) used for receiving a high-speed and weak optical signal, it is possible to prevent the phenomenon of distortion of a signal inputted after a large-level light is received. A PON (Passive Optical Network) system includes an OLT (Optical Line Terminal) which can impartially and effectively transmit light reception data to each ONU (Optical Network Unit). According to a light reception amplitude received by each ONU, an inter-frame gap of an appropriate length is assigned for each ONU. The OLT includes a unit for measuring and accumulating the reception light amplitude and data on the inter-frame gap of an appropriate length decided in advance according to the characteristic of the light reception device and generates a grant value for assuring an inter-frame gap of an appropriate length by using the both information.
摘要翻译：在用于接收高速和弱光信号的APD（雪崩光电二极管）等光接收元件中，可以防止在接收到大电平光之后输入的信号的失真现象。 PON（Passive Optical Network，无源光网络）系统包括能够向每个ONU（Optical Network Unit，光网络单元）公正地有效地发送光接收数据的OLT（Optical Line Terminal）。根据每个ONU接收的光接收幅度，为每个ONU分配适当长度的帧间间隔。 OLT包括用于根据光接收装置的特性预先确定的适当长度的帧间隙上的接收光幅度和数据的测量和累加单元，并生成用于确保帧间间隔的帧间间隔的准许值通过使用这两个信息适当的长度。

16. 发明申请

US20080089685A1 Apparatus of adjusting optical signal transmission timing 失效
标题翻译：调整光信号传输定时的装置
公开(公告)号：US20080089685A1
公开(公告)日：2008-04-17
申请号：US11730010
申请日：2007-03-29
申请人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima , Akihiko Tsuchiya , Yoshinobu Morita
发明人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima , Akihiko Tsuchiya , Yoshinobu Morita
IPC分类号： H04J14/00
CPC分类号： H04B10/272 , H04J3/0682 , H04J3/1694
摘要： In a light reception element such as an APD (Avalanche Photo Diode) used for receiving a high-speed and weak optical signal, it is possible to prevent the phenomenon of distortion of a signal inputted after a large-level light is received. A PON (Passive Optical Network) system includes an OLT (Optical Line Terminal) which can impartially and effectively transmit light reception data to each ONU (Optical Network Unit). According to a light reception amplitude received by each ONU, an inter-frame gap of an appropriate length is assigned for each ONU. The OLT includes a unit for measuring and accumulating the reception light amplitude and data on the inter-frame gap of an appropriate length decided in advance according to the characteristic of the light reception device and generates a grant value for assuring an inter-frame gap of an appropriate length by using the both information.
摘要翻译：在用于接收高速和弱光信号的APD（雪崩光电二极管）等光接收元件中，可以防止在接收到大电平光之后输入的信号的失真现象。 PON（Passive Optical Network，无源光网络）系统包括能够向每个ONU（Optical Network Unit，光网络单元）公正地有效地发送光接收数据的OLT（Optical Line Terminal）。根据每个ONU接收到的光接收幅度，为每个ONU分配适当长度的帧间间隔。 OLT包括用于根据光接收装置的特性预先确定的适当长度的帧间隙上的接收光幅度和数据的测量和累加单元，并生成用于确保帧间间隔的帧间间隔的准许值通过使用这两个信息适当的长度。

17. 发明申请

US20100296811A1 OPTICAL ACCESS SYSTEM 失效
标题翻译：光学访问系统
公开(公告)号：US20100296811A1
公开(公告)日：2010-11-25
申请号：US12785693
申请日：2010-05-24
申请人： Masaki Ohira , Tohru Kazawa , Yusuke Yajima , Akihiko Tsuchiya
发明人： Masaki Ohira , Tohru Kazawa , Yusuke Yajima , Akihiko Tsuchiya
IPC分类号： H04B17/00 , H04J14/02
CPC分类号： H04Q11/0067 , H04L1/0009 , H04L1/0025 , H04L1/0057 , H04L1/0075 , H04Q11/0071 , H04Q2011/0079
摘要： There are provided multiple candidates for FEC codes selectable for each of the ONTs. An OLT is provided with: means for storing redundancy and a code length of each FEC code in a table; means for selecting an FEC code; means for encoding or decoding data using the selected FEC code; means for calculating a bandwidth in consideration for the FEC redundancy and the code length with reference to the table during band assignment calculation; and means for notifying the destination ONT of the selected FEC code.
摘要翻译：为每个ONT提供可选择的FEC码的多个候选者。 OLT设置有：用于在表中存储冗余和每个FEC码的码长度的装置; 用于选择FEC码的装置; 用于使用所选择的FEC码对数据进行编码或解码的装置; 用于在频带分配计算期间参照该表计算考虑到FEC冗余和码长的带宽的装置; 以及用于向所述目的地ONT通知所选择的FEC码的装置。

18. 发明申请

US20120093509A1 OPTICAL MULTIPLEXING TERMINATING DEVICE, WAVE-LENGTH MULTIPLEXING PASSIVE OPTICAL NETWORK SYSTEM, AND DOWNSTREAM WAVE-LENGTH TRANSMISSION METHOD 有权
标题翻译：光学多路复用终端设备，波长多路复用被动光网络系统和下行波长传输方法
公开(公告)号：US20120093509A1
公开(公告)日：2012-04-19
申请号：US13378281
申请日：2009-06-16
申请人： Tohru Kazawa , Norihiro Sakamoto , Masaki Ohira
发明人： Tohru Kazawa , Norihiro Sakamoto , Masaki Ohira
IPC分类号： H04B10/20
CPC分类号： H04L12/44 , H04B10/272 , H04J14/021 , H04J14/0221 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0256 , H04J14/0258 , H04J14/026 , H04J14/0273 , H04J14/0282 , H04L12/66 , H04Q11/0062 , H04Q2011/0079
摘要： Provided is a passive optical network system, wherein the electric power to be consumed is reduced on the basis of the quantity of signal to be transmitted downstream in a WDM-PON where signals having different transmission rates for wavelengths are mixed. In the passive optical network system, an OLT (200) and a plurality of ONUes (300) are connected by an optical fiber network including an optical splitter (100) and a plurality of optical fibers (110 and 120). The OLT (200) indicates to the ONUes (300) the wavelength to be used, in addition to the timing for transmission to the ONUes (300). A format for signal transmission from the OLT (200) to the ONUes (300) comprises both the region, in which the timing for transmission to the ONUes (300) indicated by the OLT (200) to the ONUes (300) is stored, and the region, by which the wavelength to be used in the communication in the direction from the OLT (200) to the ONUes (300) is indicated.
摘要翻译：本发明提供一种无源光网络系统，其中，根据在波分复用传输速率不同的信号的WDM-PON中下行发送的信号量，可以减少要消耗的电力。在无源光网络系统中，OLT（200）和多个ONU（300）通过包括光分路器（100）和多个光纤（110和120）的光纤网络连接。 OLT（200）除了发送到ONU（300）的定时之外，还向ONU（300）指示要使用的波长。从OLT（200）到ONU（300）的信号传输的格式包括其中存储由OLT（200）指示的ONU（300）向ONU（300）指示的ONU（300）的发送定时的区域，并且指示在从OLT（200）到ONU（300）的方向上的通信中使用的波长的区域。

19. 发明授权

US08811819B2 Optical multiplexing terminal device, wavelength multiplexing passive optical network system and downlink wavelength transmission method 有权
标题翻译：光复用终端设备，波分复用无源光网络系统和下行波长传输方法
公开(公告)号：US08811819B2
公开(公告)日：2014-08-19
申请号：US13378281
申请日：2009-06-16
申请人： Tohru Kazawa , Norihiro Sakamoto , Masaki Ohira
发明人： Tohru Kazawa , Norihiro Sakamoto , Masaki Ohira
IPC分类号： H04J14/00 , H04J14/02
CPC分类号： H04L12/44 , H04B10/272 , H04J14/021 , H04J14/0221 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0256 , H04J14/0258 , H04J14/026 , H04J14/0273 , H04J14/0282 , H04L12/66 , H04Q11/0062 , H04Q2011/0079
摘要： Provided is a passive optical network system, wherein the electric power to be consumed is reduced on the basis of the quantity of signal to be transmitted downstream in a WDM-PON where signals having different transmission rates for wavelengths are mixed. In the passive optical network system, an OLT (200) and a plurality of ONUes (300) are connected by an optical fiber network including an optical splitter (100) and a plurality of optical fibers (110 and 120). The OLT (200) indicates to the ONUes (300) the wavelength to be used, in addition to the timing for transmission to the ONUes (300). A format for signal transmission from the OLT (200) to the ONUes (300) comprises both the region, in which the timing for transmission to the ONUes (300) indicated by the OLT (200) to the ONUes (300) is stored, and the region, by which the wavelength to be used in the communication in the direction from the OLT (200) to the ONUes (300) is indicated.
摘要翻译：本发明提供一种无源光网络系统，其中，根据在波分复用传输速率不同的信号的WDM-PON中下行发送的信号量，可以减少要消耗的电力。在无源光网络系统中，OLT（200）和多个ONU（300）通过包括光分路器（100）和多个光纤（110和120）的光纤网络连接。 OLT（200）除了发送到ONU（300）的定时之外，还向ONU（300）指示要使用的波长。从OLT（200）到ONU（300）的信号传输的格式包括其中存储由OLT（200）指示的ONU（300）向ONU（300）指示的ONU（300）的发送定时的区域，并且指示在从OLT（200）到ONU（300）的方向上的通信中使用的波长的区域。

20. 发明授权

US08477800B2 Passive optical network system and operation method thereof 失效
标题翻译：无源光网络系统及其操作方法
公开(公告)号：US08477800B2
公开(公告)日：2013-07-02
申请号：US12777470
申请日：2010-05-11
申请人： Tohru Kazawa , Norihiro Sakamoto , Masaki Ohira
发明人： Tohru Kazawa , Norihiro Sakamoto , Masaki Ohira
IPC分类号： H04B7/216 , H04B7/212
CPC分类号： H04Q11/0067 , H04Q2011/0064
摘要： A master station includes an optical transmission interface for transmitting signals to a plurality of slave stations at a first transfer rate or a second transfer rate which is higher than the first one, packet buffers for accumulating the signals addressed to each of the plurality of slave stations, and a control unit for determining transmission timings and transfer rates of the signals on the basis of an amount of the signals accumulated in the packet buffers, transmitting the signals with the determined timings and rates, and notifying each of the slave stations about the determined timings and rates. Each of the slave stations includes an optical reception interface for receiving the signals of the first transfer rate or the second transfer rate, and a control unit for controlling the optical reception interface on the basis of the timings and rates which the slave stations is notified.
摘要翻译：主站包括用于以高于第一传输速率或高于第一传输速率的第二传送速率向多个从站发送信号的光传输接口，用于累积寻址到多个从站中的每一个的站的信号的分组缓冲器以及控制单元，用于根据积累在分组缓冲器中的信号的量来确定信号的发送定时和传送速率，以确定的定时和速率发送信号，并且通知每个从站关于所确定的时间和费率。每个从站包括用于接收第一传送速率或第二传送速率的信号的光接收接口，以及用于根据从站通知的定时和速率来控制光接收接口的控制单元。

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