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1. 发明授权

US07936992B2 Apparatus of adjusting optical signal transmission timing 有权
标题翻译：调整光信号传输定时的装置
公开(公告)号：US07936992B2
公开(公告)日：2011-05-03
申请号：US12434959
申请日：2009-05-04
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。

2. 发明申请

US20120106958A1 OPTICAL MULTIPLEXING TERMINATING DEVICE, PASSIVE OPTICAL NETWORK SYSTEM AND METHOD FOR ALLOCATING WAVELENGTH 失效
标题翻译：光学多路复用终端设备，被动光网络系统和分配波长的方法
公开(公告)号：US20120106958A1
公开(公告)日：2012-05-03
申请号：US13262754
申请日：2009-04-07
申请人： Norihiro Sakamoto , Tohru Kazawa , Yusuke Yajima , Akihiko Tsuchiya
发明人： Norihiro Sakamoto , Tohru Kazawa , Yusuke Yajima , Akihiko Tsuchiya
IPC分类号： H04J14/00
CPC分类号： H04J14/0282 , H04J14/0246 , H04J14/0252 , H04Q2213/1301
摘要： A passive optical network system such that the power consumption can be reduced as much as possible according to the end-user traffic. An OLT uses the DBA function thereof and sequentially uses frequencies in ascending order of transmission rate in order to sequentially allocate bands to ONUs in ascending order of the requested bandwidth. At this time, a frequency to be allocated is selected so that the bandwidth allocated to each ONU is narrower than a maximum bandwidth through which transmission using the allocated wavelength is enabled. An OLT uses a grant area to specify the transmission timing of the secondary station and to inform the specified transmission timing to the secondary station. In addition, an area is set for storing information used to inform the secondary station of a new frequency to be used.
摘要翻译：无源光网络系统，使得可以根据最终用户流量尽可能地减少功耗。 OLT使用其DBA功能，并按照传输速率的升序依次使用频率，以按照所请求带宽的升序顺序地向ONU分配频带。此时，选择要分配的频率，使得分配给每个ONU的带宽比通过使能分配的波长的传输得到的最大带宽更窄。 OLT使用授权区域来指定次站的发送定时，并将指定的发送定时通知给次站。此外，设置用于存储用于通知次站的要使用的新频率的信息的区域。

3. 发明申请

US20120008948A1 PASSIVE OPTICAL NETWORK SYSTEM AND OPERATING METHOD THEREOF 失效
标题翻译：被动光网络系统及其操作方法
公开(公告)号：US20120008948A1
公开(公告)日：2012-01-12
申请号：US13201804
申请日：2009-11-09
申请人： Tohru Kazawa , Akihiko Tsuchiya , Norihiro Sakamoto , Yusuke Yajima , Masatoshi Takihiro
发明人： Tohru Kazawa , Akihiko Tsuchiya , Norihiro Sakamoto , Yusuke Yajima , Masatoshi Takihiro
IPC分类号： H04B10/20
CPC分类号： H04L12/44 , H04Q11/0067 , H04Q2011/0079
摘要： Provided is a passive optical network system for operating a mixture of PONs with differing transmission speeds and is capable of reducing power consumption on the basis of the amount of signals being transmitted. The master station of the passive optical network system, which determines the amount and timing of signals sent thereto by each of a plurality of slave stations on the basis of the requests of the plurality of slave stations and receives signals from the plurality of slave stations via an optical fiber network, is equipped with a control unit that determines in each set cycle the amount, transmission timing, and transmission speed of the signals that each slave station is permitted to transmit to said master station on the basis of the amount of signals that each of the plurality of slave stations has requested to transmit, and that notifies such to each slave station. Additionally, each of the plurality of slave stations is equipped with a control unit that transmits signals to the master station at a first transmission speed or a second transmission speed that is faster than the first transmission speed, and is configured to transmit signals with either the first transmission speed or the second transmission speed on the basis of notifications from the master station.
摘要翻译：提供了一种用于操作具有不同传输速度的PON的混合的无源光网络系统，并且能够基于正在传输的信号量来减少功耗。无源光网络系统的主站，其根据多个从站的请求确定发送给多个从站的信号的数量和定时，并且经由光纤网络配备有控制单元，该控制单元在每个设定的周期中根据所述主站的信号量确定每个从站被允许向所述主站发送的信号的量，发送定时和传输速度，多个从站中的每一个已经请求发送，并且通知每个从站。此外，多个从站中的每一个配备有控制单元，该控制单元以比第一传输速度快的第一传输速度或第二传输速度向主站发送信号，并且被配置为：基于来自主站的通知的第一传输速度或第二传输速度。

4. 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。

5. 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。

6. 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。

7. 发明申请

US20090010650A1 PASSIVE OPTICAL NETWORK SYSTEM AND COMMUNICATION METHOD THEREFOR 有权
标题翻译：被动光网络系统及其通信方法
公开(公告)号：US20090010650A1
公开(公告)日：2009-01-08
申请号：US12109431
申请日：2008-04-25
申请人： Akihiko TSUCHIYA , Yusuke Yajima , Tohru Kazawa
发明人： Akihiko TSUCHIYA , Yusuke Yajima , Tohru Kazawa
IPC分类号： H04B10/20
CPC分类号： H04J3/1694 , H04J3/0602 , H04Q11/0067 , H04Q11/0071
摘要： In a passive optical network system in which communication signals from a master station to a plurality of subsidiary stations are multiplexed by time division and transmitted, after converting (modulating) data with a high transmission speed to a low transmission speed, a base speed, in the master station, a header including an identifier destined for each subsidiary station is attached to the data with a low transmission speed and the converted data, respectively, the data and the header being multiplexed by time division inside a frame and transmitted to the subsidiary stations at the base speed. In the subsidiary station having received the concerned frame, only the data destined for the station itself is read, on the basis of the identifier included in the header, and by means of demodulation, the converted data are reconverted to the original high speed data and supplied to a user terminal.
摘要翻译：在从主站到多个子站的通信信号通过时分复用并被发送的无源光网络系统中，在以高传输速度转换（调制）数据到低传输速度之后，将基本速度主站，包含目的地为每个辅助站的标识符的标题以低传输速度附加到数据，并且转换后的数据分别通过帧内的时分复用并发送到辅助站在基本速度。在已经接收到相关帧的子站中，仅基于标题中包含的标识符来读取目的地为站本身的数据，并且通过解调，将转换的数据重新转换为原始高速数据，提供给用户终端。

8. 发明授权

US08724995B2 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：US08724995B2
公开(公告)日：2014-05-13
申请号：US13201804
申请日：2009-11-09
申请人： Tohru Kazawa , Akihiko Tsuchiya , Norihiro Sakamoto , Yusuke Yajima , Masatoshi Takihiro
发明人： Tohru Kazawa , Akihiko Tsuchiya , Norihiro Sakamoto , Yusuke Yajima , Masatoshi Takihiro
IPC分类号： H04B10/00
CPC分类号： H04L12/44 , H04Q11/0067 , H04Q2011/0079
摘要： Provided is a passive optical network system for operating a mixture of PONs with differing transmission speeds and is capable of reducing power consumption on the basis of the amount of signals being transmitted. The master station of the passive optical network system, which determines the amount and timing of signals sent thereto by each of a plurality of slave stations on the basis of the requests of the plurality of slave stations and receives signals from the plurality of slave stations via an optical fiber network, is equipped with a control unit that determines in each set cycle the amount, transmission timing, and transmission speed of the signals that each slave station is permitted to transmit to said master station on the basis of the amount of signals that each of the plurality of slave stations has requested to transmit, and that notifies such to each slave station. Additionally, each of the plurality of slave stations is equipped with a control unit that transmits signals to the master station at a first transmission speed or a second transmission speed that is faster than the first transmission speed, and is configured to transmit signals with either the first transmission speed or the second transmission speed on the basis of notifications from the master station.
摘要翻译：提供了一种用于操作具有不同传输速度的PON的混合的无源光网络系统，并且能够基于正在传输的信号量来减少功耗。无源光网络系统的主站，其根据多个从站的请求确定发送给多个从站的信号的数量和定时，并且经由光纤网络配备有控制单元，该控制单元在每个设定的周期中根据所述主站的信号量确定每个从站被允许向所述主站发送的信号的量，发送定时和传输速度，多个从站中的每一个已经请求发送，并且通知每个从站。此外，多个从站中的每一个配备有控制单元，该控制单元以比第一传输速度快的第一传输速度或第二传输速度向主站发送信号，并且被配置为：基于来自主站的通知的第一传输速度或第二传输速度。

9. 发明授权

US08107824B2 Passive optical network system and communication method therefor 有权
标题翻译：被动光网络系统及其通信方法
公开(公告)号：US08107824B2
公开(公告)日：2012-01-31
申请号：US12109431
申请日：2008-04-25
申请人： Akihiko Tsuchiya , Yusuke Yajima , Tohru Kazawa
发明人： Akihiko Tsuchiya , Yusuke Yajima , Tohru Kazawa
IPC分类号： H04B10/00
CPC分类号： H04J3/1694 , H04J3/0602 , H04Q11/0067 , H04Q11/0071
摘要： In a passive optical network system in which communication signals from a master station to a plurality of subsidiary stations are multiplexed by time division and transmitted, after converting (modulating) data with a high transmission speed to a low transmission speed, a base speed, in the master station, a header including an identifier destined for each subsidiary station is attached to the data with a low transmission speed and the converted data, respectively, the data and the header being multiplexed by time division inside a frame and transmitted to the subsidiary stations at the base speed. In the subsidiary station having received the concerned frame, only the data destined for the station itself is read, on the basis of the identifier included in the header, and by means of demodulation, the converted data are reconverted to the original high speed data and supplied to a user terminal.
摘要翻译：在从主站到多个子站的通信信号通过时分复用并被发送的无源光网络系统中，在以高传输速度转换（调制）数据到低传输速度之后，将基本速度主站，包含目的地为每个辅助站的标识符的标题以低传输速度附加到数据，并且转换后的数据分别通过帧内的时分复用并发送到辅助站在基本速度。在已经接收到相关帧的子站中，仅基于标题中包含的标识符来读取目的地为站本身的数据，并且通过解调，将转换的数据重新转换为原始高速数据，提供给用户终端。

10. 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。

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