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。

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。

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。

公开(公告)号：US08532491B2

公开(公告)日：2013-09-10

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。

公开(公告)号：US07489869B2

公开(公告)日：2009-02-10

申请号：US11729974

申请日：2007-03-30

申请人： Tohru Kazawa ,  Masaki Ohira ,  Yusuke Yajima ,  Norihiro Sakamoto

发明人： Tohru Kazawa ,  Masaki Ohira ,  Yusuke Yajima ,  Norihiro Sakamoto

IPC分类号： H04J14/00

CPC分类号： H04J3/1694 ,  H04J3/0682

摘要： A station-side communication device connected to subscriber-side communication devices via an optical combining device; sending, to the subscriber-side communication devices, a distance measurement request signal; computing transmission delay times of optical signals from the individual subscriber-side communication devices by receiving distance measurement signals, and including: a threshold control part identifying the level of distance measurement signals; a signal detection part detecting breaks in the distance measurement signals from the threshold control part; a transmission granting part determining the timing at which transmission of optical signals is granted, and a reset timing generation part that, there is notification of detection of a break in the distance measurement signal from the signal detection part while it is being notified that distance measurement is carried out to and from the subscriber-side communication devices from the transmission granting part, sends a reset signal indicating that the voltage level is reset to the threshold control part.

公开(公告)号：US20080089686A1

公开(公告)日：2008-04-17

申请号：US11729974

申请日：2007-03-30

申请人： Tohru Kazawa ,  Masaki Ohira ,  Yusuke Yajima ,  Norihiro Sakamoto

发明人： Tohru Kazawa ,  Masaki Ohira ,  Yusuke Yajima ,  Norihiro Sakamoto

IPC分类号： H04J14/00

CPC分类号： H04J3/1694 ,  H04J3/0682

摘要： A station-side communication device connected to subscriber-side communication devices via an optical combining device; sending, to the subscriber-side communication devices, a distance measurement request signal; computing transmission delay times of optical signals from the individual subscriber-side communication devices by receiving distance measurement signals, and including: a threshold control part identifying the level of distance measurement signals; a signal detection part detecting breaks in the distance measurement signals from the threshold control part; a transmission granting part determining the timing at which transmission of optical signals is granted, and a reset timing generation part that, there is notification of detection of a break in the distance measurement signal from the signal detection part while it is being notified that distance measurement is carried out to and from the subscriber-side communication devices from the transmission granting part, sends a reset signal indicating that the voltage level is reset to the threshold control part.

摘要翻译： 经由光合成装置与用户侧通信装置连接的站侧通信装置; 向所述用户侧通信设备发送距离测量请求信号; 通过接收距离测量信号来计算来自各个用户侧通信设备的光信号的传输延迟时间，并且包括：阈值控制部分，识别距离测量信号的电平; 信号检测部检测来自阈值控制部的距离测量信号的中断; 确定光信号的发送的定时的发送准许部分，以及在通知距离测量的情况下，存在来自信号检测部的距离测量信号中断的检测通知的复位定时生成部 向来自发送授权部分的用户侧通信设备执行，将表示电压电平复位的复位信号发送到阈值控制部分。

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。

公开(公告)号：US08005362B2

公开(公告)日：2011-08-23

申请号：US12022172

申请日：2008-01-30

申请人： Norihiro Sakamoto ,  Yusuke Yajima ,  Tohru Kazawa

发明人： Norihiro Sakamoto ,  Yusuke Yajima ,  Tohru Kazawa

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J3/0682 ,  H04L25/063 ,  H04Q11/0066 ,  H04Q2011/0064 ,  H04Q2011/0088 ,  H04Q2213/1301

摘要： In order to be able to moderate the inclination of the PON burst reception characteristics and to improve the FEC effect, a first offset is used in a ranging window field, and a second offset, which is lower than the first offset value, is used in a burst data field other than the ranging window field.

摘要翻译： 为了能够缓和PON突发接收特性的倾斜度并改善FEC效应，在测距窗口场中使用第一偏移量，并且将低于第一偏移值的第二偏移量用于 除了测距窗口字段之外的突发数据字段。

公开(公告)号：US07711268B2

公开(公告)日：2010-05-04

申请号：US12254590

申请日：2008-10-20

申请人： Tohru Kazawa ,  Masaki Ohira ,  Yusuke Yajima ,  Norihiro Sakamoto

发明人： Tohru Kazawa ,  Masaki Ohira ,  Yusuke Yajima ,  Norihiro Sakamoto

IPC分类号： H04J14/00

CPC分类号： H04J3/1694 ,  H04J3/0682

摘要： A station-side communication device connected to subscriber-side communication devices via an optical combining device; sending, to the subscriber-side communication devices, a distance measurement request signal; computing transmission delay times of optical signals from the individual subscriber-side communication devices by receiving distance measurement signals, and including: a threshold control part identifying the level of distance measurement signals; a signal detection part detecting breaks in the distance measurement signals from the threshold control part; a transmission granting part determining the timing at which transmission of optical signals is granted, and a reset timing generation part that, there is notification of detection of a break in the distance measurement signal from the signal detection part while it is being notified that distance measurement is carried out to and from the subscriber-side communication devices from the transmission granting part, sends a reset signal indicating that the voltage level is reset to the threshold control part.

公开(公告)号：US20110293274A1

公开(公告)日：2011-12-01

申请号：US13208975

申请日：2011-08-12

申请人： Norihiro SAKAMOTO ,  Yusuke Yajima ,  Tohru Kazawa

发明人： Norihiro SAKAMOTO ,  Yusuke Yajima ,  Tohru Kazawa

IPC分类号： H04B10/20

CPC分类号： H04Q11/0067 ,  H04J3/0682 ,  H04L25/063 ,  H04Q11/0066 ,  H04Q2011/0064 ,  H04Q2011/0088 ,  H04Q2213/1301

摘要： In order to be able to moderate the inclination of the PON burst reception characteristics and to improve the FEC effect, a first offset is used in a ranging window field, and a second offset, which is lower than the first offset value, is used in a burst data field other than the ranging window field.

摘要翻译： 为了能够缓和PON突发接收特性的倾斜度并改善FEC效应，在测距窗口场中使用第一偏移量，并且将低于第一偏移值的第二偏移量用于 除了测距窗口字段之外的突发数据字段。