公开(公告)号：US20090196606A1

公开(公告)日：2009-08-06

申请号：US12363015

申请日：2009-01-30

申请人： Morihito MIYAGI ,  Hiroki Ikeda ,  Kenichi Sakamoto ,  Nobuko Miyagi

发明人： Morihito MIYAGI ,  Hiroki Ikeda ,  Kenichi Sakamoto ,  Nobuko Miyagi

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J3/0682 ,  H04J3/1694 ,  H04Q2011/0079 ,  H04Q2011/0088

摘要： An optical access network and optical switching systems requiring no frame delay process on an optical switchboard are disclosed. Plural ONUs are connected to user terminals. An OLT communicates with an IP network through an access gateway. An optical switching unit (OSW) connects the ONUs and the OLT by switching the optical line. A control line connects the OLT and the OSW to control the optical switch change-over operation in the OSW. The optical switch port information required to generate the optical switch activation signal are concentrated in the OLT, which transmits the optical switch change-over control signal to the OSW through the control line before the transmission frame.

摘要翻译： 公开了一种在光交换机上不需要帧延迟处理的光接入网和光交换系统。 多个ONU连接到用户终端。 OLT通过接入网关与IP网络进行通信。 光交换单元（OSW）通过切换光线路连接ONU和OLT。 控制线连接OLT和OSW，以控制OSW中的光开关切换操作。 产生光开关激活信号所需的光交换机端口信息集中在OLT中，OLT在传输帧之前通过控制线将光开关切换控制信号发送到OSW。

公开(公告)号：US08401384B2

公开(公告)日：2013-03-19

申请号：US12503884

申请日：2009-07-16

申请人： Koji Wakayama ,  Hiroki Ikeda ,  Michitaka Okuno ,  Kenichi Sakamoto

发明人： Koji Wakayama ,  Hiroki Ikeda ,  Michitaka Okuno ,  Kenichi Sakamoto

IPC分类号： H04J14/00 ,  H04B10/00

CPC分类号： H04Q11/0067 ,  H04Q2011/0045 ,  H04Q2011/0064

摘要： Provided is an optical access system, including: an optical line terminal, a plurality of optical network units and an optical switching unit. The optical line terminal sends to the optical switching unit a control frame including a switching time when the optical switching unit is to make a switch from one of the optical communication paths between the optical line terminal and the plurality of optical network units to another, and an identifier of an optical communication path to which the switch is made in order to switch the optical communication paths between the optical line terminal and the plurality of optical network units. The optical switching unit switches the optical communication paths between the optical line terminal and the plurality of optical network units based on the switching time and the identifier of the optical communication path after switching which are included in the control frame.

摘要翻译： 提供一种光接入系统，包括：光线路终端，多个光网络单元和光交换单元。 光线路终端向光交换单元发送包括切换时间的控制帧，当光交换单元从光线路终端与多个光网络单元之间的光通信路径之一进行切换时，切换时间为 为了切换光线路终端与多个光网络单元之间的光通信路径而进行交换的光通信路径的标识符。 光切换单元基于包括在控制帧中的切换时间和切换后的光通信路径的标识符，切换光线路终端与多个光网络单元之间的光通信路径。

公开(公告)号：US20080155612A1

公开(公告)日：2008-06-26

申请号：US11778969

申请日：2007-07-17

申请人： Hiroki Ikeda ,  Kenichi Sakamoto ,  Taishi Shinagawa

发明人： Hiroki Ikeda ,  Kenichi Sakamoto ,  Taishi Shinagawa

IPC分类号： H04N7/173

CPC分类号： H04L12/1877 ,  H04L12/185 ,  H04L65/4076 ,  H04N21/4384 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/643 ,  H04N21/64322

摘要： The present invention provides an IP broadcasting system that can receive IP broadcasting videos over an IP multicast network. In the IP broadcasting system, a multicast group management apparatus for IP broadcasting that holds multicast group identifiers is connected via an IP multicast network over which IP broadcasting services are provided. When a user issues a request to switch an IP broadcasting channel from an IP broadcasting terminal, a query message including the requested IP broadcasting channel identifier is transmitted to a management apparatus. The IP broadcasting terminal receives a response message indicating the correspondence between the IP broadcasting channel identifier and a multicast group identifier, and transmits a video reception request message to a multicast group by using the received multicast group identifier.

摘要翻译： 本发明提供一种能够通过IP多播网络接收IP广播视频的IP广播系统。 在IP广播系统中，通过IP组播网络连接保持组播组标识符的IP广播的组播组管理装置，通过该组播网络提供IP广播业务。 当用户发出从IP广播终端切换IP广播信道的请求时，向管理装置发送包括所请求的IP广播信道标识符的查询消息。 IP广播终端接收表示IP广播信道标识符与多播组标识符之间的对应关系的响应消息，并通过使用接收到的多播组标识符将视频接收请求消息发送到多播组。

公开(公告)号：US08522288B2

公开(公告)日：2013-08-27

申请号：US11778969

申请日：2007-07-17

申请人： Hiroki Ikeda ,  Kenichi Sakamoto ,  Taishi Shinagawa

发明人： Hiroki Ikeda ,  Kenichi Sakamoto ,  Taishi Shinagawa

IPC分类号： H04N7/173

CPC分类号： H04L12/1877 ,  H04L12/185 ,  H04L65/4076 ,  H04N21/4384 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/643 ,  H04N21/64322

摘要： The present invention provides an IP broadcasting system that can receive IP broadcasting videos over an IP multicast network. In the IP broadcasting system, a multicast group management apparatus for IP broadcasting that holds multicast group identifiers is connected via an IP multicast network over which IP broadcasting services are provided. When a user issues a request to switch an IP broadcasting channel from an IP broadcasting terminal, a query message including the requested IP broadcasting channel identifier is transmitted to a management apparatus. The IP broadcasting terminal receives a response message indicating the correspondence between the IP broadcasting channel identifier and a multicast group identifier, and transmits a video reception request message to a multicast group by using the received multicast group identifier.

摘要翻译： 本发明提供一种能够通过IP多播网络接收IP广播视频的IP广播系统。 在IP广播系统中，通过IP组播网络连接保持组播组标识符的IP广播组播组管理装置，通过该组播网络提供IP广播业务。 当用户发出从IP广播终端切换IP广播信道的请求时，向管理装置发送包括所请求的IP广播信道标识符的查询消息。 IP广播终端接收表示IP广播信道标识符与多播组标识符之间的对应关系的响应消息，并通过使用接收到的多播组标识符将视频接收请求消息发送到多播组。

公开(公告)号：US20050232188A1

公开(公告)日：2005-10-20

申请号：US11059488

申请日：2005-02-17

申请人： Kenichi Sakamoto ,  Shiro Tanabe ,  Hui Deng ,  Hiroki Ikeda

发明人： Kenichi Sakamoto ,  Shiro Tanabe ,  Hui Deng ,  Hiroki Ikeda

IPC分类号： H04W36/36 ,  H04L12/701 ,  H04L29/06 ,  H04W36/00 ,  H04W40/34 ,  H04W40/36 ,  H04W80/00 ,  H04W80/04 ,  H04Q7/00

CPC分类号： H04W40/36 ,  H04L45/24 ,  H04L45/50 ,  H04W36/0011 ,  H04W80/00

摘要： The present invention provides a method building a handover system to improve the service quality in mobile networks. When a mobile node has received a plurality of care-of addresses, it will send a Prepare Multi-path (PM) message to a correspondent node. Once receiving the PM message, each router replaces the old input label in the PM message with a new input label, and then sends it to the next router. Each router adds a new item into the Split Path Table based on the received message. After sending the PM message, the mobile node sends a Request Multi-path (RM) message to a correspondent node. Each MPLS core router decides whether to stop the RM message or not when the RM message is received. If it is yes, the corresponding input label will be split and the generated data packet will be transmitted to two paths from this router. One is the path in the network where the mobile node has been located, another one is a new path in the visiting network.

摘要翻译： 本发明提供了建立切换系统以提高移动网络中的服务质量的方法。 当移动节点已经接收到多个转交地址时，它将向对方节点发送准备多路径（PM）消息。 一旦接收到PM消息，每个路由器将使用新的输入标签替换PM消息中的旧输入标签，然后将其发送到下一个路由器。 每个路由器根据收到的消息将新项目添加到分割路径表中。 在发送PM消息之后，移动节点向通信节点发送请求多路径（RM）消息。 当接收到RM消息时，每个MPLS核心路由器决定是否停止RM消息。 如果为是，相应的输入标签将被拆分，并且生成的数据包将从该路由器传输到两条路径。 一个是移动节点所在的网络中的路径，另一个是访问网络中的新路径。

公开(公告)号：US08380065B2

公开(公告)日：2013-02-19

申请号：US12582083

申请日：2009-10-20

申请人： Michitaka Okuno ,  Koji Wakayama ,  Kenichi Sakamoto ,  Hiroki Ikeda

发明人： Michitaka Okuno ,  Koji Wakayama ,  Kenichi Sakamoto ,  Hiroki Ikeda

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J2203/0058 ,  H04L43/0864 ,  H04Q2011/0079 ,  H04Q2011/0088

摘要： Provided is an optical access system comprising: an optical line terminal connected to another network; a plurality of optical network units, each connected to a user terminal; and at least one of an optical switching unit and an optical splitter, which is installed between the optical line terminal and the plurality of optical network units. The optical line terminal allocates a length of time to a discovery phase for detecting the plurality of optical network units, and a length of time to data transmission phases for transferring data from the plurality of optical network units; and changes a ratio of the length of time of the discovery phase to the length of time of the data transmission phases so that the length of time of the discovery phase is shortened in the case where a number of the optical network units that are registered in the optical line terminal increase.

摘要翻译： 提供一种光接入系统，包括：连接到另一网络的光线路终端; 多个光网络单元，各自连接到用户终端; 以及安装在光线路终端与多个光网络单元之间的光交换单元和分光器中的至少一个。 光线路终端将用于检测多个光网络单元的发现阶段的时间长度分配给从多个光网络单元传送数据的数据传输阶段的时间长度; 并且将发现阶段的时间长度与数据传输阶段的时间长度的比率进行改变，使得在注册的光网络单元的数量的情况下，发现阶段的时间长度被缩短 光线路终端增加。

公开(公告)号：US07936991B2

公开(公告)日：2011-05-03

申请号：US12068829

申请日：2008-02-12

申请人： Toshiki Sugawara ,  Masahiko Mizutani ,  Hiroki Ikeda ,  Kenichi Sakamoto

发明人： Toshiki Sugawara ,  Masahiko Mizutani ,  Hiroki Ikeda ,  Kenichi Sakamoto

IPC分类号： H04B10/20 ,  H04J14/00

CPC分类号： H04L7/0075 ,  H04J3/1694

摘要： An optical access communication apparatus and an optical access communication system for the coexistence of two wideband PON systems without using an expensive optical device or module. A low-speed PON and a high-speed PON have a same upstream wavelength, and an OLT receives optical signals by a same optical receiver in the two systems, converts the optical signals into electric signals, amplifies the electric signals, branches the amplified electric signals, and processes the branched signals by clock and data recovery sections of bit rates corresponding to the two PON systems, thereby achieving an optical communication apparatus and an optical communication system for constructing a simple and low-cost triple-play service system of excellent transmission quality.

摘要翻译： 一种用于两个宽带PON系统共存而不使用昂贵的光学设备或模块的光接入通信设备和光接入通信系统。 低速PON和高速PON具有相同的上行波长，并且OLT在两个系统中通过相同的光接收器接收光信号，将光信号转换为电信号，放大电信号，将放大的电 信号，并通过对应于两个PON系统的比特率的时钟和数据恢复部分对分支信号进行处理，从而实现用于构建出色传输的简单且低成本的三重播放业务系统的光通信装置和光通信系统 质量。

公开(公告)号：US20090080888A1

公开(公告)日：2009-03-26

申请号：US12068829

申请日：2008-02-12

申请人： Toshiki Sugawara ,  Masahiko Mizutani ,  Hiroki Ikeda ,  Kenichi Sakamoto

发明人： Toshiki Sugawara ,  Masahiko Mizutani ,  Hiroki Ikeda ,  Kenichi Sakamoto

IPC分类号： H04B10/20 ,  H04J14/00

CPC分类号： H04L7/0075 ,  H04J3/1694

摘要： An optical access communication apparatus and an optical access communication system for the coexistence of two wideband PON systems without using an expensive optical device or module. A low-speed PON and a high-speed PON have a same upstream wavelength, and an OLT receives optical signals by a same optical receiver in the two systems, converts the optical signals into electric signals, amplifies the electric signals, branches the amplified electric signals, and processes the branched signals by clock and data recovery sections of bit rates corresponding to the two PON systems, thereby achieving an optical communication apparatus and an optical communication system for constructing a simple and low-cost triple-play service system of excellent transmission quality.

摘要翻译： 一种用于两个宽带PON系统共存而不使用昂贵的光学设备或模块的光接入通信设备和光接入通信系统。 低速PON和高速PON具有相同的上行波长，并且OLT在两个系统中通过相同的光接收器接收光信号，将光信号转换为电信号，放大电信号，将放大的电 信号，并通过对应于两个PON系统的比特率的时钟和数据恢复部分对分支信号进行处理，从而实现用于构建出色传输的简单且低成本的三重播放业务系统的光通信装置和光通信系统 质量。

公开(公告)号：US20080216143A1

公开(公告)日：2008-09-04

申请号：US11947229

申请日：2007-11-29

申请人： Hiroki Ikeda ,  Kenichi Sakamoto ,  Hideki Kamimaki

发明人： Hiroki Ikeda ,  Kenichi Sakamoto ,  Hideki Kamimaki

IPC分类号： H04N7/00

CPC分类号： H04N7/17318 ,  H04H20/82 ,  H04L12/185 ,  H04L65/4076 ,  H04N21/2385 ,  H04N21/4383 ,  H04N21/6405 ,  H04N21/64322

摘要： An IP broadcast terminal 30 is connected with a multicast address management device 10 for IP broadcast that holds multicast information via an IP multicast network 40 over which IP broadcast service is provided, and when a user issues a request to change an IP broadcast channel, generates a query message including an IP broadcast channel identifier requested from the IP broadcast terminal 30 to transmits it to the multicast address management device 10 for IP broadcast. The IP broadcast terminal 30 receives a response message showing the correspondence between IP broadcast channel identifiers and multicast addresses from the multicast address management device 10 for IP broadcast, and transmits a video reception request message to a multicast group decided for reception.

摘要翻译： IP广播终端30与通过IP组播网络40保持组播信息的IP广播的组播地址管理装置10连接，IP组播网络40通过IP组播网络40提供IP广播业务，并且当用户发出改变IP广播频道的请求时，生成 包括从IP广播终端30请求的IP广播信道标识符的查询消息，将其发送到组播地址管理装置10进行IP广播。 IP广播终端30从多播地址管理装置10接收IP广播的IP广播信道标识符和多播地址之间的对应关系的响应消息，并且向决定接收的多播组发送视频接收请求消息。

公开(公告)号：US09626160B2

公开(公告)日：2017-04-18

申请号：US14772232

申请日：2013-03-29

申请人： Takayuki Yamaoka ,  Kenichi Sakamoto

发明人： Takayuki Yamaoka ,  Kenichi Sakamoto

IPC分类号： G06F9/44 ,  G05B19/05

CPC分类号： G06F8/30 ,  G05B19/056 ,  G05B2219/13099 ,  G06F8/36 ,  G06F9/44 ,  G06F17/50

摘要： To provide a sequence-program-component creation program that causes a computer to perform a searching step of searching an overall circuit of a sequence program for a common logic part and extracting a logic pattern that appears in common in a circuit pattern arranged in the common logic part as a common circuit pattern, a component-candidate displaying step of displaying an extracted common circuit pattern as a candidate for a program component, a component registration setting step of registering a common circuit pattern selected by a user from candidates for the program component, and a replacing step of replacing the common logic part of the sequence program with the program component.