公开(公告)号：US07773880B2

公开(公告)日：2010-08-10

申请号：US12076897

申请日：2008-03-25

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。

公开(公告)号：US08654766B2

公开(公告)日：2014-02-18

申请号：US13465356

申请日：2012-05-07

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： H04L12/56 ,  H04J3/04

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：US07908390B2

公开(公告)日：2011-03-15

申请号：US11341683

申请日：2006-01-30

申请人： Masayuki Takase ,  Yoshihiro Ashi ,  Masahiko Mizutani ,  Tohru Kazawa ,  Kenichi Sakamoto ,  Taishi Shinagawa

发明人： Masayuki Takase ,  Yoshihiro Ashi ,  Masahiko Mizutani ,  Tohru Kazawa ,  Kenichi Sakamoto ,  Taishi Shinagawa

IPC分类号： G06F15/16 ,  G06F15/173

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/21 ,  H04L47/215 ,  H04L47/22 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： A packet forwarding apparatus and network system for providing different types of bandwidth control services to the user; in which a packet forwarding apparatus for transferring data comprises an interface unit for sending and receiving packets, and a traffic shaper for controlling the packet transmission timing and a packet switch for sending an output to the interface unit as the destination of the received packet; and the traffic shaper uses a token bucket algorithm when transmitting a packet to guarantee the minimum frame rate, and uses a leaky bucket algorithm when limiting the peak frame rate.

摘要翻译： 一种分组转发装置和网络系统，用于向用户提供不同类型的带宽控制服务; 其中用于传送数据的分组转发装置包括用于发送和接收分组的接口单元，以及用于控制分组传输定时的流量整形器和用于向接口单元发送输出作为接收分组的目的地的分组交换机; 并且流量整形器在发送分组时使用令牌桶算法来保证最小帧速率，并且在限制峰值帧速率时使用泄漏桶算法。

公开(公告)号：US07620325B2

公开(公告)日：2009-11-17

申请号：US11340524

申请日：2006-01-27

申请人： Masahiko Mizutani ,  Yoshihiro Ashi ,  Masayuki Takase ,  Kenichi Sakamoto ,  Atsushi Iwamura ,  Tohru Kazawa ,  Norihiro Sakamoto

发明人： Masahiko Mizutani ,  Yoshihiro Ashi ,  Masayuki Takase ,  Kenichi Sakamoto ,  Atsushi Iwamura ,  Tohru Kazawa ,  Norihiro Sakamoto

IPC分类号： H04J14/08

CPC分类号： H04L47/2433 ,  H04L47/10 ,  H04L47/15 ,  H04L47/263 ,  H04L47/30 ,  H04L47/365 ,  H04L47/70 ,  H04L47/788 ,  H04L47/805

摘要： A transmission apparatus for use in fixed bandwidth communications and variable bandwidth communications. The transmission apparatus has a memory unit, which stores information contained in a frame and indicating the amount of data to be transmitted from a terminal device, a computing unit, which calculates a bandwidth amount to be assigned to the terminal device based on the data amount, and a transmission unit, which sends the calculated assigned bandwidth amount to the terminal device. The transmission apparatus is characterized in that the computing unit calculates bandwidth amounts to be assigned to different types of flow of which different transmission qualities are requested according to a priority level that is set to each flow type. The transmission apparatus is also characterized in that bandwidth is controlled by designating, instead of a necessary bandwidth amount, transmission starting timing and transmission ending timing, particularly for fixed bandwidth communication data.

摘要翻译： 一种用于固定带宽通信和可变带宽通信的传输装置。 发送装置具有存储单元，其存储包含在帧中的信息，并且指示要从终端设备发送的数据量，计算单元，其基于数据量计算分配给终端设备的带宽量 ，以及将计算出的分配带宽量发送给终端装置的发送单元。 传输装置的特征在于，计算单元根据设置为每个流类型的优先级，计算要分配给不同类型的流请求的带宽量。 发送装置的特征还在于，通过特定于固定带宽通信数据来指定传输开始定时和发送结束定时而不是必要的带宽量来控制带宽。

公开(公告)号：US20060268719A1

公开(公告)日：2006-11-30

申请号：US11341683

申请日：2006-01-30

申请人： Masayuki Takase ,  Yoshihiro Ashi ,  Masahiko Mizutani ,  Tohru Kazawa ,  Kenichi Sakamoto ,  Taishi Shinagawa

发明人： Masayuki Takase ,  Yoshihiro Ashi ,  Masahiko Mizutani ,  Tohru Kazawa ,  Kenichi Sakamoto ,  Taishi Shinagawa

IPC分类号： H04L12/26 ,  H04L12/56

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/21 ,  H04L47/215 ,  H04L47/22 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： A packet forwarding apparatus and network system for providing different types of bandwidth control services to the user; in which a packet forwarding apparatus for transferring data comprises an interface unit for sending and receiving packets, and a traffic shaper for controlling the packet transmission timing and a packet switch for sending an output to the interface unit as the destination of the received packet; and the traffic shaper uses a token bucket algorithm when transmitting a packet to guarantee the minimum frame rate, and uses a leaky bucket algorithm when limiting the peak frame rate.

公开(公告)号：US08089865B2

公开(公告)日：2012-01-03

申请号：US12223274

申请日：2006-08-04

申请人： Masahiko Mizutani ,  Atsushi Iwamura ,  Yoshihiro Ashi ,  Masayuki Takase ,  Hideki Endo

发明人： Masahiko Mizutani ,  Atsushi Iwamura ,  Yoshihiro Ashi ,  Masayuki Takase ,  Hideki Endo

IPC分类号： H04J1/00

CPC分类号： H04L12/1863 ,  H04L12/437 ,  H04L45/02 ,  H04L45/16 ,  H04L45/28 ,  H04L69/40

摘要： Provided is a multicast path management method for a connectionless communication. Also provided is a path protection function which is effective when a path has failed. A network is formed by a trunk and a branch path. The multicast path is managed by end-to-end and when a failure has occurred, an instruction is issued from the apex of the multicast tree to respective end-to-end paths so as to switch from the currently used channel to a backup path. Thus, upon failure, an individual path protection can be performed without affecting other parts of the tree to which the same multicast flow as the defective path is distributed or the distribution state of the multicast flow.

摘要翻译： 提供了一种用于无连接通信的多播路径管理方法。 还提供了路径保护功能，其在路径失败时有效。 网络由中继线和分支路径形成。 组播路径由端对端管理，发生故障时，从组播树的顶点向相应的端对端路径发出指令，从当前使用的信道切换到备用路径 。 因此，一旦发生故障，可以执行单独的路径保护，而不影响分发与故障路径相同的多播流的树的其他部分或多播流的分布状态。

公开(公告)号：US20100226244A1

公开(公告)日：2010-09-09

申请号：US12223274

申请日：2006-08-04

申请人： Masahiko Mizutani ,  Atsushi Iwamura ,  Yoshihiro Ashi ,  Masayuki Takase ,  Hideki Endo

发明人： Masahiko Mizutani ,  Atsushi Iwamura ,  Yoshihiro Ashi ,  Masayuki Takase ,  Hideki Endo

IPC分类号： H04L12/26 ,  H04L12/56 ,  H04L12/28

CPC分类号： H04L12/1863 ,  H04L12/437 ,  H04L45/02 ,  H04L45/16 ,  H04L45/28 ,  H04L69/40

摘要： Provided is a multicast path management method for a connectionless communication. Also provided is a path protection function which is effective when a path has failed. A network is formed by a trunk and a branch path. The multicast path is managed by end-to-end and when a failure has occurred, an instruction is issued from the apex of the multicast tree to respective end-to-end paths so as to switch from the currently used channel to a backup path. Thus, upon failure, an individual path protection can be performed without affecting other parts of the tree to which the same multicast flow as the defective path is distributed or the distribution state of the multicast flow.

摘要翻译： 提供了一种用于无连接通信的多播路径管理方法。 还提供了路径保护功能，其在路径失败时有效。 网络由中继线和分支路径形成。 组播路径由端对端管理，发生故障时，从组播树的顶点向相应的端对端路径发出指令，从当前使用的信道切换到备用路径 。 因此，一旦发生故障，可以执行单独的路径保护，而不影响分发与故障路径相同的多播流的树的其他部分或多播流的分布状态。

公开(公告)号：US20090162055A1

公开(公告)日：2009-06-25

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： H04B10/08

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。

公开(公告)号：US20080181604A1

公开(公告)日：2008-07-31

申请号：US12076897

申请日：2008-03-25

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： H04B17/00

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。

公开(公告)号：US07369768B2

公开(公告)日：2008-05-06

申请号：US11346467

申请日：2006-02-03

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.