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1. 发明授权

US07855981B2 Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration program 有权
标题翻译：网络系统，生成树配置方式，生成树配置节点和生成树配置程序
公开(公告)号：US07855981B2
公开(公告)日：2010-12-21
申请号：US12073331
申请日：2008-03-04
申请人： Nobuyuki Enomoto , Masaki Umayabashi , Youichi Hidaka , Atsushi Iwata , Makoto Shibutani
发明人： Nobuyuki Enomoto , Masaki Umayabashi , Youichi Hidaka , Atsushi Iwata , Makoto Shibutani
IPC分类号： H04L12/28 , G06F15/173
CPC分类号： H04L45/48 , H04L12/462 , H04L12/4645 , H04L43/0817 , H04L45/02 , H04L45/28
摘要： A node that configures a spanning tree over a network to which a plurality of nodes are connected generates a tree after a cost change using another LAN while continuing to operate the tree that existed before the change, and switches the tree that is used for forwarding after the new tree has been stable.
摘要翻译：在连接多个节点的网络上配置生成树的节点在继续操作改变之前存在的树之后，使用另一个LAN在成本变化之后生成树，并且切换用于转发之后的树新树已经稳定了。

2. 发明授权

US07894374B2 Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration program 有权
标题翻译：网络系统，生成树配置方式，生成树配置节点和生成树配置程序
公开(公告)号：US07894374B2
公开(公告)日：2011-02-22
申请号：US10642480
申请日：2003-08-18
申请人： Nobuyuki Enomoto , Masaki Umayabashi , Youichi Hidaka , Atsushi Iwata , Makoto Shibutani
发明人： Nobuyuki Enomoto , Masaki Umayabashi , Youichi Hidaka , Atsushi Iwata , Makoto Shibutani
IPC分类号： H04L12/28
CPC分类号： H04L45/48 , H04L12/462 , H04L12/4645 , H04L43/0817 , H04L45/02 , H04L45/28
摘要： A node that configures a spanning tree over a network to which a plurality of nodes are connected generates a tree after a cost change using another LAN while continuing to operate the tree that existed before the change, and switches the tree that is used for forwarding after the new tree has been stable.
摘要翻译：在连接多个节点的网络上配置生成树的节点在继续操作改变之前存在的树之后，使用另一个LAN在成本变化之后生成树，并且切换用于转发之后的树新树已经稳定了。

3. 发明授权

US07783705B2 Frame transfer method and node in Ethernet 有权
标题翻译：以太网中的帧传输方法和节点
公开(公告)号：US07783705B2
公开(公告)日：2010-08-24
申请号：US10642197
申请日：2003-08-18
申请人： Youichi Hidaka , Makoto Shibutani , Atsushi Iwata , Masaki Umayabashi , Nobuyuki Enomoto
发明人： Youichi Hidaka , Makoto Shibutani , Atsushi Iwata , Masaki Umayabashi , Nobuyuki Enomoto
IPC分类号： G06F15/16 , H04L12/28 , H04L12/56
CPC分类号： H04L47/32 , H04L12/4666 , H04L47/28
摘要： A node to relay the Ethernet frame provided with means to insert, in the relay process of the frame, two or more VLAN tags into the frame at a time and to remove the inserted VLAN tags wherein a TTL area to show the frame survival time is provided in the VLAN tag to be inserted to the frame so that whether the survival time has been elapsed or not is checked by the value in the TTL area and the frame after elapse of the survival time is discarded without being relayed.
摘要翻译：用于中继以太网帧的节点具有在帧的中继过程中将两个或更多个VLAN标签一次插入该帧的装置，并且去除插入的VLAN标签，其中显示帧存活时间的TTL区域是提供在要插入帧的VLAN标签中，以便通过TTL区域中的值检查生存时间是否已经过去，并且在生存时间过后的帧被丢弃而不进行中继。

4. 发明申请

US20080159174A1 Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration program 有权
标题翻译：网络系统，生成树配置方式，生成树配置节点和生成树配置程序
公开(公告)号：US20080159174A1
公开(公告)日：2008-07-03
申请号：US12073331
申请日：2008-03-04
申请人： Nobuyuki Enomoto , Masaki Umayabashi , Youichi Hidaka , Atsushi Iwata , Makoto Shibutani
发明人： Nobuyuki Enomoto , Masaki Umayabashi , Youichi Hidaka , Atsushi Iwata , Makoto Shibutani
IPC分类号： H04L12/28
CPC分类号： H04L45/48 , H04L12/462 , H04L12/4645 , H04L43/0817 , H04L45/02 , H04L45/28
摘要： A node that configures a spanning tree over a network to which a plurality of nodes are connected generates a tree after a cost change using another LAN while continuing to operate the tree that existed before the change, and switches the tree that is used for forwarding after the new tree has been stable.
摘要翻译：在连接多个节点的网络上配置生成树的节点在继续操作改变之前存在的树之后，使用另一个LAN在成本变化之后生成树，并且切换用于转发之后的树新树已经稳定了。

5. 发明授权

US07200155B2 Communication system capable of efficiently transmitting data from terminals to server 有权
标题翻译：能够从终端到服务器有效地发送数据的通信系统
公开(公告)号：US07200155B2
公开(公告)日：2007-04-03
申请号：US10291552
申请日：2002-11-12
申请人： Masaki Umayabashi , Kazuo Takagi , Makoto Shibutani
发明人： Masaki Umayabashi , Kazuo Takagi , Makoto Shibutani
IPC分类号： H04J3/16 , G06F15/16
CPC分类号： H04L12/417
摘要： A communication system includes a server and a plurality of terminals. The server repeatedly assigns transmission periods to the terminals in a regular order, each of the terminals being permitted as a current terminal to transmit data stored in a buffer thereof to the server during an assigned transmission period assigned thereto by the server as a current transmission period. The communication system includes: a transmission controller provided in each of the terminals for transmitting a release request notification to the server in a case where the terminal finishes data transmission before the end of the assigned transmission period assigned to the terminal, and a transmission period assigning portion provided in the server for assigning a next transmission period following the current transmission period to a next terminal different from the current terminal, in response to the release request notification.
摘要翻译：通信系统包括服务器和多个终端。服务器以规则的顺序重复地向终端分配传输周期，每个终端作为当前终端被允许作为当前终端将在服务器分配的分配的传输周期内将存储在其缓冲器中的数据发送到服务器作为当前传输周期。通信系统包括：发送控制器，其设置在每个终端中，用于在终端在分配给终端的所分配的发送周期结束之前完成数据发送的情况下向服务器发送释放请求通知;以及发送期间分配部分，用于响应于所述释放请求通知，将当前传输周期之后的下一个传输周期分配给与当前终端不同的下一个终端。

6. 发明授权

US07646789B2 Communication system including several communication terminals and server, its communication terminal, its server and data transfer control program 失效
标题翻译：通信系统包括几个通信终端和服务器，其通信终端，其服务器和数据传输控制程序
公开(公告)号：US07646789B2
公开(公告)日：2010-01-12
申请号：US10352114
申请日：2003-01-28
申请人： Masaki Umayabashi , Satomi Shioiri , Kazuo Takagi , Makoto Shibutani
发明人： Masaki Umayabashi , Satomi Shioiri , Kazuo Takagi , Makoto Shibutani
IPC分类号： H04J3/16
CPC分类号： H04L25/4908 , H04L7/041 , H04L7/046 , H04L12/2856 , H04L12/2885 , H04L12/413 , H04Q11/0067
摘要： In a communication system in which a plurality of communication terminals sequentially transfer data to a server during the respective transmission permissible periods assigned to the respective communication terminals, the communication terminal transfers a preamble for synchronization to the server at a time of starting the transmission permissible period, converts a data frame for every 8 bits into every 10 bit-code, and transmits to the server, the signal string with a code indicating the head added there, during the transmission permissible period, and turns a communication to the server into a zero signal state, during a period other than the transmission permissible period, while the server establishes a synchronization by reading the preamble for synchronization inserted into the signal string received from each of the communication terminals, converts a portion of the zero signal state of the signal string into a predetermined special code string, and inversely transforms the received signal string into the data frame before the coding.
摘要翻译：在其中多个通信终端在分配给各个通信终端的各个传输允许期间内顺序地将数据传送到服务器的通信系统中，通信终端在启动传输允许周期时将服务器前同步码传送到服务器将每8位的数据帧转换为每10位代码，并在发送允许期间向服务器发送具有指示添加到其中的头的代码的信号串，并将与服务器的通信转换为零信号状态，在传输允许期间以外的时段期间，当服务器通过读取插入到从每个通信终端接收的信号串中的同步的前同步码来建立同步时，转换信号串的零信号状态的一部分成为预定的特殊代码串，并反向转换在编码之前将数据帧接收到数据帧中。

7. 发明申请

US20080063397A1 SYSTEM AND METHOD FOR PROVIDING WIRELESS OVER A PASSIVE OPTICAL NETWORK (PON) 有权
标题翻译：用于在无源光网络（PON）上提供无线的系统和方法
公开(公告)号：US20080063397A1
公开(公告)日：2008-03-13
申请号：US11832075
申请日：2007-08-01
申请人： JUNQIANG Hu , Ting Wang , Dayou Qian , Yuanqiu Luo , Yoshihiko Suemura , Makoto Shibutani
发明人： JUNQIANG Hu , Ting Wang , Dayou Qian , Yuanqiu Luo , Yoshihiko Suemura , Makoto Shibutani
IPC分类号： H04J14/00
CPC分类号： H04W88/085 , H04J14/021 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0298 , H04Q11/0067 , H04Q2011/0086
摘要： A network system and method include a wireless base station integrated at a central office of a service provider. The wireless base station is configured to provide portable and fixed services to customers. A passive optical network is coupled to the wireless base station at the central office to provide a link to extend an antenna for wireless operations of the wireless base station to a remote site such that a wireless signal from the wireless base station is transmitted in parallel with a passive fiber network signal through the link.
摘要翻译：网络系统和方法包括集成在服务提供商的中心局的无线基站。无线基站被配置为向客户提供便携和固定的服务。无源光网络耦合到中心局的无线基站，以提供链路，以将无线基站的无线操作的天线扩展到远程站点，使得来自无线基站的无线信号与无源光纤网络信号通过链路。

8. 发明授权

US5771111A Optical network 失效
标题翻译：光网络
公开(公告)号：US5771111A
公开(公告)日：1998-06-23
申请号：US573321
申请日：1995-12-15
申请人： Wataru Domon , Makoto Shibutani
发明人： Wataru Domon , Makoto Shibutani
IPC分类号： H04J14/00 , H04B10/27 , H04B10/272 , H04B10/275 , H04B10/29 , H04B10/297 , H04J14/02
CPC分类号： H04J14/0298
摘要： Disclosed is an optical network which has a plurality of subordinate optical networks, each of which being connected with a plurality of optical terminals which function as a transmitter and a receiver of a signal light, wherein multiplexing of transmission signals and demultiplexing of reception signals at the optical terminals are carried out in the subcarrier multiplexing manner; and a main optical network which is connected with the subordinate optical networks, wherein multiplexing of signal lights transmitted from the subordinate optical networks is carried out in the wavelength division multiplexing manner.
摘要翻译：公开了一种光网络，其具有多个从属光网络，每个光网络与用作信号光的发射机和接收机的多个光学终端连接，其中传输信号的复用和接收信号的解复用以子载波复用方式执行光终端; 以及与下级光网络连接的主光网络，其中从下级光网络发送的信号光的复用以波分复用方式进行。

9. 发明授权

US5400391A Mobile communication system 失效
标题翻译：移动通信系统
公开(公告)号：US5400391A
公开(公告)日：1995-03-21
申请号：US289545
申请日：1994-08-11
申请人： Katsumi Emura , Makoto Shibutani , Junji Namiki , Toshihito Kanai
发明人： Katsumi Emura , Makoto Shibutani , Junji Namiki , Toshihito Kanai
IPC分类号： H04B10/2575 , H04W88/08 , H04M11/00
CPC分类号： H04B10/25753 , H04B10/25752 , H04B10/25759 , H04W88/085
摘要： A cellular mobile communication system in which each of one or more cells is provided with a base radio station, and mobile terminals communicate with the base radio stations. Base radio stations (21, 22 and 23) are connected to a central base station (100) by optical fibers. The central base station is connected to a mobile switching center (50). Each of the base radio stations is provided with an O/E converter (201) and E/O converter (207). The O/E converter converts a optical signal containing speech signals and a call connection control signal into RF signals. The E/O converter (207) converts RF signals, received from a mobile terminal (11) via an antenna (204), into optical signals and transmits the optical signals to the central base station. The central base station comprises O/E converters (301-303) for converting optical signals from each base radio station into RF signals; receivers (401-403) for demodulating these RF signals; transmitters (406-408) for converting speech signals and a call connection control signal from the mobile switching center into RF signals; and E/O converters (304-306) for converting these RF signals into optical signals and transmitting the optical signals to a base radio station.
摘要翻译：一种蜂窝移动通信系统，其中一个或多个小区中的每一个被提供有基站无线电台，并且移动终端与基站无线电台进行通信。基站无线电站（21,22和23）通过光纤连接到中央基站（100）。中央基站连接到移动交换中心（50）。每个基站广播台设置有O / E转换器（201）和E / O转换器（207）。 O / E转换器将包含语音信号和呼叫连接控制信号的光信号转换成RF信号。 E / O转换器（207）将从移动终端（11）经由天线（204）接收的RF信号转换为光信号，并将光信号发送到中央基站。中央基站包括用于将来自每个基站的光信号转换为RF信号的O / E转换器（301-303）接收器（401-403），用于解调这些RF信号; 发射机（406-408），用于将来自移动交换中心的语音信号和呼叫连接控制信号转换成RF信号; 和用于将这些RF信号转换为光信号并将光信号发送到基站的E / O转换器（304-306）。

10. 发明授权

US5107512A Frequency stabilization of a laser beam by using a birefrigent body 失效
标题翻译：激光束的频率稳定性使用双极体
公开(公告)号：US5107512A
公开(公告)日：1992-04-21
申请号：US575719
申请日：1990-08-31
申请人： Makoto Shibutani
发明人： Makoto Shibutani
IPC分类号： H04B10/572 , H01S5/068 , H01S5/0687 , H04B10/07 , H04B10/25 , H04B10/293 , H04B10/564
CPC分类号： H01S5/0687
摘要： To supply a frequency control signal to a laser diode module for generating a laser beam susceptible to a variation in frequency or wavelength, a frequency stabilizing device comprises a birefringent body (21) for converting the variation to a variation in a polarization state of the laser beam to produce a polarization varied beam, which a polarization separating element (22) separates into first and second beam components having orthogonally polarized directions and first and second beam intensities. Optical detectors (26,27) detect the beam intensities to produce first and second detection signals. A subtracter (28) calculates a difference between the beam intensities. A control signal producing arangement (29) produces the frequency control signal in compliance with the difference. Preferably, the difference is normalized by a sum of the beam intensities. The birefringent body may be a uniaxial or a biaxial body. The uniaxial body should have an optic axis which forms an angle of 45.degree. with a predetermined plane of polarization of the laser beam. In this event, the orthogonally polarized directions should be parallel and perpendicular to predetermined direction of polarization. It is possible to use the sum in stabilizing an output power of the laser diode module.

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