公开(公告)号：US20070264017A1

公开(公告)日：2007-11-15

申请号：US11503246

申请日：2006-08-14

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

IPC分类号： H04J14/00

CPC分类号： H04J3/1694 ,  H04L12/185 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0073 ,  H04Q2011/0079

摘要： Provided is an ONU that suppresses transmission of a useless multicast control message to a PON section and enables a communication bandwidth of the PON section to be effectively used. The ONU of the PON system has a multicast group management table that shows a correspondence between a multicast group identifier and an address of a user terminal participating in a multicast group. When the ONU receives a request message of participation in the multicast group from the user terminal, the ONU registers the correspondence between the multicast group identifier indicated by the received message and the user terminal address. A new received message is deleted without being sent to the OLT if another user terminal address is registered already, along with a correspondence with the same multicast group identifier, in the multicast group management table.

摘要翻译： 提供了抑制对PON部分的无用组播控制消息的发送的ONU，能够有效地使用PON部的通信带宽。 PON系统的ONU具有表示组播组标识与参与组播组的用户终端的地址的对应关系的组播组管理表。 当ONU从用户终端接收到参与组播组的请求消息时，ONU注册由接收到的消息指示的组播组标识符与用户终端地址之间的对应关系。 如果在多播组管理表中已经注册了另一个用户终端地址以及与同一组播组标识符的对应关系，则新的接收到的消息被删除而不被发送到OLT。

公开(公告)号：US07630637B2

公开(公告)日：2009-12-08

申请号：US11503246

申请日：2006-08-14

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

IPC分类号： H04J14/00

CPC分类号： H04J3/1694 ,  H04L12/185 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0073 ,  H04Q2011/0079

摘要： Provided is an ONU that suppresses transmission of a useless multicast control message to a PON section and enables a communication bandwidth of the PON section to be effectively used. The ONU of the PON system has a multicast group management table that shows a correspondence between a multicast group identifier and an address of a user terminal participating in a multicast group. When the ONU receives a request message of participation in the multicast group from the user terminal, the ONU registers the correspondence between the multicast group identifier indicated by the received message and the user terminal address. A new received message is deleted without being sent to the OLT if another user terminal address is registered already, along with a correspondence with the same multicast group identifier, in the multicast group management table.

摘要翻译： 提供了抑制对PON部分的无用组播控制消息的发送的ONU，能够有效地使用PON部的通信带宽。 PON系统的ONU具有表示组播组标识与参与组播组的用户终端的地址的对应关系的组播组管理表。 当ONU从用户终端接收到参与组播组的请求消息时，ONU注册由接收到的消息指示的组播组标识符与用户终端地址之间的对应关系。 如果在多播组管理表中已经注册了另一个用户终端地址以及与同一组播组标识符的对应关系，则新的接收到的消息被删除而不被发送到OLT。

公开(公告)号：US07962037B2

公开(公告)日：2011-06-14

申请号：US12622118

申请日：2009-11-19

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

IPC分类号： H04B10/20 ,  H04J14/00

CPC分类号： H04J3/1694 ,  H04L12/185 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0073 ,  H04Q2011/0079

摘要： Provided is an ONU that suppresses transmission of a useless multicast control message to a PON section and enables a communication bandwidth of the PON section to be effectively used. The ONU of the PON system has a multicast group management table that shows a correspondence between a multicast group identifier and an address of a user terminal participating in a multicast group. When the ONU receives a request message of participation in the multicast group from the user terminal, the ONU registers the correspondence between the multicast group identifier indicated by the received message and the user terminal address. A new received message is deleted without being sent to the OLT if another user terminal address is registered already, along with a correspondence with the same multicast group identifier, in the multicast group management table.

摘要翻译： 提供了抑制对PON部分的无用组播控制消息的发送的ONU，能够有效地使用PON部的通信带宽。 PON系统的ONU具有表示组播组标识与参与组播组的用户终端的地址的对应关系的组播组管理表。 当ONU从用户终端接收到参与组播组的请求消息时，ONU注册由接收到的消息指示的组播组标识符与用户终端地址之间的对应关系。 如果在多播组管理表中已经注册了另一个用户终端地址以及与同一组播组标识符的对应关系，则新的接收到的消息被删除而不被发送到OLT。

公开(公告)号：US20100067910A1

公开(公告)日：2010-03-18

申请号：US12622118

申请日：2009-11-19

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

IPC分类号： H04J14/08

CPC分类号： H04J3/1694 ,  H04L12/185 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0073 ,  H04Q2011/0079

摘要： Provided is an ONU that suppresses transmission of a useless multicast control message to a PON section and enables a communication bandwidth of the PON section to be effectively used. The ONU of the PON system has a multicast group management table that shows a correspondence between a multicast group identifier and an address of a user terminal participating in a multicast group. When the ONU receives a request message of participation in the multicast group from the user terminal, the ONU registers the correspondence between the multicast group identifier indicated by the received message and the user terminal address. A new received message is deleted without being sent to the OLT if another user terminal address is registered already, along with a correspondence with the same multicast group identifier, in the multicast group management table.

摘要翻译： 提供了抑制对PON部分的无用组播控制消息的发送的ONU，能够有效地使用PON部的通信带宽。 PON系统的ONU具有表示组播组标识与参与组播组的用户终端的地址的对应关系的组播组管理表。 当ONU从用户终端接收到参与组播组的请求消息时，ONU注册由接收到的消息指示的组播组标识符与用户终端地址之间的对应关系。 如果在多播组管理表中已经注册了另一个用户终端地址以及与同一组播组标识符的对应关系，则新的接收到的消息被删除而不被发送到OLT。

公开(公告)号：US20100150554A1

公开(公告)日：2010-06-17

申请号：US12656713

申请日：2010-02-16

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Hideki Endo

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Hideki Endo

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04Q2011/0064

摘要： A PON system capable of utilizing the bandwidth of an optical transmission channel in the PON section. In a PON system including an OLT and a plurality of ONUs, the OLT has: a downstream frame processing unit that removes at least part of the header information in a layer 2 header from a downstream frame received from a wide area network, and converts the remaining frame portion into a frame having a header specific to the PON section; and a downstream frame processing unit that extracts a downstream frame portion to be transferred to a user terminal, from a received frame from a PON, and adds the layer 2 header information deleted in the OLT.

公开(公告)号：US20070223490A1

公开(公告)日：2007-09-27

申请号：US11492832

申请日：2006-07-26

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Hideki Endo

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Hideki Endo

IPC分类号： H04L12/56

CPC分类号： H04Q11/0067 ,  H04Q2011/0064

摘要： A PON system capable of utilizing the bandwidth of an optical transmission channel in the PON section. In a PON system including an OLT and a plurality of ONUs, the OLT has: a downstream frame processing unit that removes at least part of the header information in a layer 2 header from a downstream frame received from a wide area network, and converts the remaining frame portion into a frame having a header specific to the PON section; and a downstream frame processing unit that extracts a downstream frame portion to be transferred to a user terminal, from a received frame from a PON, and adds the layer 2 header information deleted in the OLT.

摘要翻译： 一种能够利用PON部分中的光传输信道的带宽的PON系统。 在包括OLT和多个ONU的PON系统中，OLT具有：下游帧处理单元，从从广域网接收到的下行帧中去除层2报头中的头部信息的至少一部分，并将 剩余帧部分变成具有对PON部分特有的标题的帧; 以及从PON的接收帧中提取要传送到用户终端的下行帧部分的下行帧处理单元，并且将删除在OLT中的层2报头信息相加。

公开(公告)号：US08331400B2

公开(公告)日：2012-12-11

申请号：US12656713

申请日：2010-02-16

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Hideki Endo

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Hideki Endo

IPC分类号： H04J3/16 ,  H04J4/00 ,  H04J14/00 ,  H04B10/20

CPC分类号： H04Q11/0067 ,  H04Q2011/0064

摘要： A PON system capable of utilizing the bandwidth of an optical transmission channel in the PON section. In a PON system including an OLT and a plurality of ONUs, the OLT has: a downstream frame processing unit that removes at least part of the header information in a layer 2 header from a downstream frame received from a wide area network, and converts the remaining frame portion into a frame having a header specific to the PON section; and a downstream frame processing unit that extracts a downstream frame portion to be transferred to a user terminal, from a received frame from a PON, and adds the layer 2 header information deleted in the OLT.

摘要翻译： 一种能够利用PON部分中的光传输信道的带宽的PON系统。 在包括OLT和多个ONU的PON系统中，OLT具有：下游帧处理单元，从从广域网接收到的下行帧中去除层2报头中的头部信息的至少一部分，并将 剩余帧部分变成具有对于PON部分特有的报头的帧; 以及从PON的接收帧中提取要传送到用户终端的下行帧部分的下行帧处理单元，并且将删除在OLT中的层2报头信息相加。

公开(公告)号：US07675936B2

公开(公告)日：2010-03-09

申请号：US11492832

申请日：2006-07-26

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Hideki Endo

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Hideki Endo

IPC分类号： H04J3/16 ,  H04J3/22

CPC分类号： H04Q11/0067 ,  H04Q2011/0064

摘要： A PON system capable of utilizing the bandwidth of an optical transmission channel in the PON section. In a PON system including an OLT and a plurality of ONUs, the OLT has: a downstream frame processing unit that removes at least part of the header information in a layer 2 header from a downstream frame received from a wide area network, and converts the remaining frame portion into a frame having a header specific to the PON section; and a downstream frame processing unit that extracts a downstream frame portion to be transferred to a user terminal, from a received frame from a PON, and adds the layer 2 header information deleted in the OLT.

摘要翻译： 一种能够利用PON部分中的光传输信道的带宽的PON系统。 在包括OLT和多个ONU的PON系统中，OLT具有：下游帧处理单元，从从广域网接收到的下行帧中去除层2报头中的头部信息的至少一部分，并将 剩余帧部分变成具有对PON部分特有的标题的帧; 以及从PON的接收帧中提取要传送到用户终端的下行帧部分的下行帧处理单元，并且将删除在OLT中的层2报头信息相加。

公开(公告)号：US08189571B2

公开(公告)日：2012-05-29

申请号：US11339449

申请日：2006-01-26

申请人： Masahiko Mizutani ,  Yoshihiro Ashi ,  Masayuki Takase ,  Atsushi Iwamura ,  Akihiko Tanaka ,  Hideki Endo ,  Tohru Kazawa

发明人： Masahiko Mizutani ,  Yoshihiro Ashi ,  Masayuki Takase ,  Atsushi Iwamura ,  Akihiko Tanaka ,  Hideki Endo ,  Tohru Kazawa

IPC分类号： H04L12/66

CPC分类号： H04L45/04 ,  H04J3/1617 ,  H04J2203/0083

摘要： An interconnection between fully synchronous networks and next-generation frame communications networks is disclosed. A means of bidirectional frame format conversion between a synchronous multiplexing system and a logical multiplexing system is provided, along with a method of transmitting data between different networks on a path as if it were being transmitted in the same network. Further, when converting network control information in an STM network into data suitable for a packet network, even across the boundary of a synchronous multiplexing system and a logical multiplexing system, a unified communication management means is provided over the whole path.

摘要翻译： 公开了完全同步网络和下一代帧通信网络之间的互连。 提供了在同步多路复用系统和逻辑多路复用系统之间的双向帧格式转换的方法，以及在路径上的不同网络之间传输数据的方法，如同在同一网络中传输一样。 此外，当将STM网络中的网络控制信息转换为适用于分组网络的数据时，甚至跨越同步复用系统和逻辑多路复用系统的边界，在整个路径上提供统一的通信管理装置。

公开(公告)号：US08290369B2

公开(公告)日：2012-10-16

申请号：US12379281

申请日：2009-02-18

申请人： Kenichi Sakamoto ,  Yoshihiro Ashi ,  Tohru Kazawa ,  Ryosuke Nishino ,  Masayuki Takase ,  Masahiko Mizutani

发明人： Kenichi Sakamoto ,  Yoshihiro Ashi ,  Tohru Kazawa ,  Ryosuke Nishino ,  Masayuki Takase ,  Masahiko Mizutani

IPC分类号： H04B10/00

CPC分类号： H04J3/1694 ,  H04J3/0682

摘要： An optical access system capable of avoiding cutoffs or interruption in the periodically transmitted signals that occur during the ranging time is provided. A first method to avoid signal cutoffs is to stop periodic transmit signals at the transmitter during the ranging period, and transmit all the periodic transmit signals together when the ranging ends, and buffer the signals at the receiver to prepare for ranging. A second method is to fix definite periods ahead of time for performing ranging, then cluster the multiple periodic transmit signals together in sets at the transmitter and send them, and then disassemble those sets back into signals at the receiver. The transmitting and receiving is then controlled so that the transmit periods do not overlap with the ranging periods. In this way an optical access system is provided that can send and receive signals requiring periodic transmissions without interruption even during ranging operation.

摘要翻译： 提供一种能够避免在测距时间期间发生的周期性发射信号中的截断或中断的光接入系统。 避免信号截止的第一种方法是在测距周期期间在发射机处停止周期性发射信号，并且在测距结束时将所有周期性发射信号传输到一起，并且在接收机处缓冲信号以准备测距。 第二种方法是提前确定一段时间进行测距，然后将多个周期性发射信号集合在一起，并将其发送给发射机，然后将它们分组回接收机的信号。 然后控制发送和接收，使得发送周期不与测距周期重叠。 以这种方式，提供光接入系统，即使在测距操作期间也可以发送和接收需要周期性传输的信号而不中断。