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1. 发明授权

US07746891B2 Enabling mobile IPv6 communication over a network containing IPv4 components using ISATAP 有权
标题翻译：通过使用ISATAP的IPv4组件的网络启用移动IPv6通信
公开(公告)号：US07746891B2
公开(公告)日：2010-06-29
申请号：US10818662
申请日：2004-04-05
申请人： Shu Yamamoto , Carl Williams , Hidetoshi Yokota , Kazuo Hashimoto
发明人： Shu Yamamoto , Carl Williams , Hidetoshi Yokota , Kazuo Hashimoto
IPC分类号： H04L12/28
CPC分类号： H04W80/045 , H04W8/26 , H04W40/00 , H04W88/06
摘要： A mobile IPv6 dual-stack node engages in IPv6 communication while roaming within an IPv4-only network, for example using ISATAP. First, the node determines that it has moved Bnd obtains a new IPv4 address. After determining that the visited network contains no IPv6-enabled components, the node uses an IPv6 connect agent to engage in IPv6 communication. The node configures its care-of address using the IPv6 connect agent's routing information and the node's newly-obtained IPv4 address. In one embodiment, the node and the connect agent optimize the handoff when the nodes has moved but still uses the same connect agent. The node sends a binding updates to the connect agents comprising the node's old care-of address and the node's new care-of address. When the connect agent receives a packet destined for the node's previous care-of address, it forwards the packet to the node's currents care-of address, thereby reducing packet loss.
摘要翻译：移动IPv6双栈节点在仅IPv4网络中漫游时进行IPv6通信，例如使用ISATAP。首先，节点确定它已经移动Bnd获取新的IPv4地址。在确定受访网络不包含启用IPv6的组件之后，节点使用IPv6连接代理进行IPv6通信。节点使用IPv6连接代理的路由信息和节点的新获得的IPv4地址来配置其转交地址。在一个实施例中，节点和连接代理在节点移动但仍使用相同的连接代理时优化切换。节点向连接代理发送绑定更新，该连接代理包括节点的旧转交地址和节点的新转交地址。当连接代理接收到目的地为该节点之前转交地址的数据包时，它将数据包转发到节点的电流转交地址，从而减少数据包丢失。

2. 发明申请

US20050015497A1 Automatic IPv6 connect agent discovery using DNS 审中-公开
标题翻译：使用DNS自动IPv6连接代理发现
公开(公告)号：US20050015497A1
公开(公告)日：2005-01-20
申请号：US10729257
申请日：2003-12-04
申请人： Hidetoshi Yokota , Shu Yamamoto , Carl Williams , Kazuo Hashimoto
发明人： Hidetoshi Yokota , Shu Yamamoto , Carl Williams , Kazuo Hashimoto
IPC分类号： H04L12/56 , G06F15/16 , H04L12/66
CPC分类号： H04L12/6418 , H04L29/12066 , H04L29/12358 , H04L61/1511 , H04L61/251
摘要： An IPv6 enabled node finds an IPv6 connect agent by using a Domain Name System (DNS) server. The IPv6 enabled node sends a query to the DNS server and, in response, receives one or more identifiers of one or more IPv6 connect agents. In one embodiment, an identifier comprises the name of an IPv6 connect agent. In this embodiment, the IPv6 enabled node then sends a name of a desired IPv6 connect agent to the DNS server and, in response, receives the address of that IPv6 connect agent. The IPv6 enabled node is then able to engage in IPv6 communication using that IPv6 connect agent. In another embodiment, an identifier comprises the address of an IPv6 connect agent. In this embodiment, the IPv6 enabled node is able to engage in IPv6 communication using that IPv6 connect agent without any further contact with the DNS server.
摘要翻译：启用IPv6的节点通过使用域名系统（DNS）服务器来查找IPv6连接代理。启用IPv6的节点向DNS服务器发送查询，并作为响应，接收一个或多个IPv6连接代理的一个或多个标识符。在一个实施例中，标识符包括IPv6连接代理的名称。在本实施例中，IPv6启用的节点然后将所需的IPv6连接代理的名称发送到DNS服务器，并且响应地接收该IPv6连接代理的地址。 IPv6启用的节点然后能够使用该IPv6连接代理进行IPv6通信。在另一个实施例中，标识符包括IPv6连接代理的地址。在本实施例中，启用IPv6的节点能够使用该IPv6连接代理进行IPv6通信，而不与DNS服务器进一步联系。

3. 发明申请

US20050008032A1 Enabling mobile IPv6 communication over a network containing IPv4 components using ISATAP 有权
标题翻译：通过使用ISATAP的IPv4组件的网络启用移动IPv6通信
公开(公告)号：US20050008032A1
公开(公告)日：2005-01-13
申请号：US10818662
申请日：2004-04-05
申请人： Shu Yamamoto , Carl Williams , Hidetoshi Yokota , Kazuo Hashimoto
发明人： Shu Yamamoto , Carl Williams , Hidetoshi Yokota , Kazuo Hashimoto
IPC分类号： H04L12/28 , H04L12/56 , H04L29/06
CPC分类号： H04W80/045 , H04W8/26 , H04W40/00 , H04W88/06
摘要： A mobile IPv6 dual-stack node engages in IPv6 communication while roaming within an IPv4-only network, for example using ISATAP. First, the node determines that it has moved and obtains a new IPv4 address. After determining that the visited network contains no IPv6-enabled components, the node uses in IPv6 connect agent to engage in IPv6 communication. The node configures its care-of address using the IPv6 connect agent's routing information and the node's newly-obtained IPv4 address. In one embodiment, the node and the connect agent optimize the handoff when the node has moved but still uses the same connect agent. The node sends a binding update to the connect agent comprising the node's old care-of address and the node's new care-of address. When the connect agent receives a packet destined for the node's previous care-of address, it forwards the packet to the node's current care-of address, thereby reducing packet loss.
摘要翻译：移动IPv6双栈节点在仅IPv4网络中漫游时进行IPv6通信，例如使用ISATAP。首先，节点确定它已经移动并获得新的IPv4地址。在确定访问网络不包含启用IPv6的组件之后，该节点在IPv6连接代理中使用IPv6进行通信。节点使用IPv6连接代理的路由信息和节点的新获得的IPv4地址来配置其转交地址。在一个实施例中，节点和连接代理在节点移动但仍使用相同的连接代理时优化切换。节点向连接代理发送绑定更新，该连接代理包括节点的旧转交地址和节点的新转交地址。当连接代理接收到目的地为节点之前转交地址的分组时，它将数据包转发到节点的当前转交地址，从而减少数据包丢失。

4. 发明申请

US20050099976A1 Enabling mobile IPv6 communication over a network containing IPv4 components using a tunnel broker model 审中-公开
标题翻译：通过使用隧道代理模型的包含IPv4组件的网络启用移动IPv6通信
公开(公告)号：US20050099976A1
公开(公告)日：2005-05-12
申请号：US10947880
申请日：2004-09-22
申请人： Shu Yamamoto , Carl Williams , Hidetoshi Yokota , Kazuo Hashimoto
发明人： Shu Yamamoto , Carl Williams , Hidetoshi Yokota , Kazuo Hashimoto
IPC分类号： H04L12/56 , H04L12/46 , H04L12/66 , H04L29/06 , H04L29/12 , H04J3/24
CPC分类号： H04L29/12009 , H04L12/4633 , H04L29/12207 , H04L61/20 , H04L69/16 , H04L69/161 , H04W36/0011 , H04W80/04 , H04W80/045
摘要： A mobile dual-stack node engages in IPv6 communication while roaming within an IPv4-only network. The node determines that it has moved and obtains a new IPv4 address. After determining that the visited network contains no IPv6-enabled components, the node communicates with a tunnel broker to obtain a care-of address and a tunnel to an IPv6 connect agent (e.g., a tunnel server). If the obtained care-of address differs from the care-of address that the node had been using prior to the move, the node sends MIPv6 binding updates to its home agent and corresponding peers. The node can optimize the handoff when it has obtained a different care-of address by sending a binding update to the connect agent comprising the previous care-of address and the current care-of address. When the connect agent receives a packet destined for the previous care-of address, it forwards the packet to the current care-of address.
摘要翻译：移动双栈节点在仅在IPv4网络中漫游时进行IPv6通信。节点确定它已经移动并获得新的IPv4地址。在确定被访问网络不包含启用IPv6的组件之后，节点与隧道代理通信以获得转交地址和到IPv6连接代理（例如，隧道服务器）的隧道。如果获取的转交地址不同于节点在移动之前已经使用的转交地址，则节点向其归属代理和对应的对等体发送MIPv6绑定更新。当节点通过向包括先前转交地址和当前转交地址的连接代理发送绑定更新而获得不同转交地址时，节点可以优化切换。当连接代理接收到去往以前转交地址的数据包时，它会将数据包转发到当前转交地址。

5. 发明授权

US06801720B1 Optical signal quality supervisory device 失效
标题翻译：光信号质量监控装置
公开(公告)号：US06801720B1
公开(公告)日：2004-10-05
申请号：US09559644
申请日：2000-04-28
申请人： Takashi Mizuochi , Yojiro Osaki , Aritomo Uemura , Hiroshi Ichibangase , Kiwami Matsushita , Tadayoshi Kitayama , Shu Yamamoto , Tetsuya Miyazaki , Takatomi Kabashima , Naoki Kobayashi
发明人： Takashi Mizuochi , Yojiro Osaki , Aritomo Uemura , Hiroshi Ichibangase , Kiwami Matsushita , Tadayoshi Kitayama , Shu Yamamoto , Tetsuya Miyazaki , Takatomi Kabashima , Naoki Kobayashi
IPC分类号： H04B1016
CPC分类号： H04L1/20 , H04B10/0775 , H04B2210/071 , H04B2210/072 , H04B2210/078 , H04J3/14 , H04J14/02 , H04J14/0227 , H04J14/0245 , H04J14/0249 , H04J14/0283 , H04J2203/0057
摘要： The present invention has an object to obtain an optical signal quality supervisory device that supervises the quality of an optical signal simply, efficiently and with high accuracy without inviting an increase in cost, an increase in circuit scale and increase in power consumption. The bit rate of the optical supervisory channel is made lower than the bit rate of the optical main channel that is transmitted over an optical communication system, but the reception electric band width of a receiver that receives the optical supervisory channel is made equal to or wider than the reception electric band width of a receiver that receives the optical main channel. Also, the optical supervisory channel is made up of an SOH (section over head) frame to detect an error of the BIP (bit interleaved parity) byte of SOH, thereby supervising the quality of the optical communication system, in particular, the light wave network.
摘要翻译：本发明的目的是获得一种光信号质量监控装置，其能够简单，有效且高精度地监视光信号的质量，而不会增加成本，增加电路规模和增加功耗。使光监视信道的比特率低于通过光通信系统发送的光主干的比特率，但接收光监控信道的接收机的接收电带宽度等于或大于比接收光学主通道的接收机的接收电带宽度大。此外，光监控信道由SOH（部分头）帧构成，以检测SOH的BIP（比特交织奇偶校验）字节的错误，从而监督光通信系统的质量，特别是光波网络。

6. 发明授权

US06741810B2 Signal demultiplexing device and signal routing device in high speed transmission system 失效
标题翻译：高速传输系统中的信号分离装置和信号路由装置
公开(公告)号：US06741810B2
公开(公告)日：2004-05-25
申请号：US09784558
申请日：2001-02-15
申请人： Tomohiro Otani , Tetsuya Miyazaki , Shu Yamamoto
发明人： Tomohiro Otani , Tetsuya Miyazaki , Shu Yamamoto
IPC分类号： H04J1408
CPC分类号： H04J14/0223 , H04J14/08
摘要： In a signal demultiplexing device formed by a probe light source, a wavelength converter, and a wavelength demultiplexer, the probe light source is formed by a plurality of sub-probe light sources configured to respectively generate the sub-probe lights with the prescribed different wavelengths for respective time-slots, a multiplexer configured to multiplex the sub-probe lights generated by the plurality of sub-probe light sources, and a phase different giving unit configured to give phase differences corresponding to time-slot positions to the sub-probe lights multiplexed by the multiplexer, and to sequentially output the sub-probe lights with the phase differences in correspondence to respective time-slots.
摘要翻译：在由探测光源，波长转换器和波长解复用器形成的信号解复用装置中，探测光源由多个子探测光源形成，该多个子探测光源被配置为分别产生具有规定的不同波长的子探测光对于各个时隙，多路复用器被配置为对由多个子探测光源产生的子探测光进行多路复用，以及相位不同给出单元，被配置为给子探针灯提供对应于时隙位置的相位差通过多路复用器多路复用，并且依次输出具有与各个时隙对应的相位差的子探测灯。

7. 发明授权

US06614588B1 Optical amplifier having various control circuitry 有权
公开(公告)号：US06614588B1
公开(公告)日：2003-09-02
申请号：US09725288
申请日：2000-11-29
申请人： Aritomo Uemura , Kiwami Matsushita , Yukio Horiuchi , Masatoshi Suzuki , Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
发明人： Aritomo Uemura , Kiwami Matsushita , Yukio Horiuchi , Masatoshi Suzuki , Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H01S300
CPC分类号： H04B10/29 , H04B10/2918 , H04B10/808
摘要： The optical amplifier according to the present invention is constructed such that the amount of the electric current fed to the power feeding line 2a is first detected by the current detection means, and then a setting signal is generated to each of the bypass circuits 22 and 23 in accordance with the thus detected amount of the fed current, and thereafter the output level of each of the optical repeater circuits 11 and 12 is controlled respectively by the bypass circuits 22 and 23, so that the output level of these repeater circuits 11 and 12 can be controlled in accordance with the amount of the current fed to the power feeding line 2a.

8. 发明授权

US06236488B1 Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods 失效
标题翻译：光脉冲位置检测电路及光脉冲发生装置及其方法
公开(公告)号：US06236488B1
公开(公告)日：2001-05-22
申请号：US09052072
申请日：1998-03-31
申请人： Katsuhiro Shimizu , Takashi Mizuochi , Takeshi Komiya , Kiwami Matsushita , Tadayoshi Kitayama , Masatoshi Suzuki , Hidenori Taga , Shu Yamamoto , Noboru Edagawa , Itsuro Morita
发明人： Katsuhiro Shimizu , Takashi Mizuochi , Takeshi Komiya , Kiwami Matsushita , Tadayoshi Kitayama , Masatoshi Suzuki , Hidenori Taga , Shu Yamamoto , Noboru Edagawa , Itsuro Morita
IPC分类号： H04B1004
CPC分类号： G02F1/0327 , G01J11/00 , G02F2203/26 , H04J14/08
摘要： Detection of an optical pulse position uses an optical pulse string with a determined repetitive ratio and an electric clock signal with a same frequency as the repetitive ratio of the optical pulse string. A phase of the electric clock signal oscillator is shifted and supplied to an optical modulator. The optical modulator modulates the optical pulse string based on the electric clock signal and outputs a modulated optical signal. A photo detector converts the modulated optical signal output from the optical modulator to an electric signal. The phase shift amount of the electric clock signal is controlled to maximize an output from the photo detector. Additionally, a dither signal may be used in the control of the phase shift, more than the optical modulator may be employed, and/or more than color light source may be employed. The use of at least one of feed forward and feedback control provided by maximizing an output of the photo detector allows an optical pulse having a short width to be realized.
摘要翻译：光脉冲位置的检测使用具有确定的重复比率的光脉冲串和具有与光脉冲串的重复比相同频率的电时钟信号。电时钟信号振荡器的相位移位并提供给光调制器。光调制器基于电时钟信号调制光脉冲串，并输出调制光信号。光检测器将从光调制器输出的调制光信号转换为电信号。控制电时钟信号的相移量使光检测器的输出最大化。另外，抖动信号可以用于相移的控制，可以采用多于光调制器，和/或多于彩色光源。使用通过使光检测器的输出最大化而提供的前馈和反馈控制中的至少一个允许实现具有短宽度的光脉冲。

9. 发明授权

US5898714A Optical pulse generator 失效
标题翻译：光脉冲发生器
公开(公告)号：US5898714A
公开(公告)日：1999-04-27
申请号：US783589
申请日：1997-01-13
申请人： Itsuro Morita , Noboru Edagawa , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
发明人： Itsuro Morita , Noboru Edagawa , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： G02F1/35 , H01S3/30 , H04B10/2507 , H04B10/2525 , H04B10/29 , H04B10/293 , H04B10/508 , H04B10/524
CPC分类号： H01S3/302 , H01S2301/085
摘要： An optical pulse generator, capable of generating ultrashort optical pulses suitable for optical soliton transmission, includes a DFB laser 10 for continuous laser oscillation, an electroabsorbtion modulator 12 for creating a sequence of optical pulses of the pulse width 14.6 ps from optical output of the laser 10. Output from an optical modulator 12 enters into a dispersion decreasing fiber 16 via an optical isolator 14. The dispersion decreasing fiber 16 has chromatic dispersion that decreases from 13.7 ps/nm/km to 2.3 ps/nm/km with distance, and its fiber length is 15 km. Pump laser beams from pump lasers 20, 24 are introduced to the dispersion decreasing fiber 16 by optical couplers 18, 22, and the fiber 16 functions as a Raman amplifier. When the Raman gain is 2.4 dB, the pulse width is compressed from 14.6 ps to 5.8 ps, approximately, even when the power of input pulses to the dispersion decreasing fiber 16 complies with the soliton condition.
摘要翻译：能够产生适用于光孤子传输的超短光脉冲的光脉冲发生器包括用于连续激光振荡的DFB激光器10，用于从激光器的光输出产生脉冲宽度为14.6ps的光脉冲序列的电吸收调制器12 来自光调制器12的输出经由光隔离器14进入色散减小的光纤16.色散减小光纤16具有从距离13.7ps / nm / km降低到2.3ps / nm / km的色散，并且其色散纤维长度为15公里。来自泵浦激光器20,24的泵浦激光束通过光耦合器18,22引入到色散减小光纤16，并且光纤16用作拉曼放大器。当拉曼增益为2.4dB时，即使当色散减小的光纤16的输入脉冲的功率符合孤子条件时，脉冲宽度也从大约14.6ps压缩到5.8ps。

10. 发明授权

US5790294A Line monitoring method and line monitoring apparatus 失效
标题翻译：线路监控方法和线路监控装置
公开(公告)号：US5790294A
公开(公告)日：1998-08-04
申请号：US617615
申请日：1996-03-19
申请人： Yukio Horiuchi , Shu Yamamoto , Shigeyuki Akiba
发明人： Yukio Horiuchi , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H04J14/00 , H04B3/46 , H04B10/07 , H04B10/077 , H04B10/079 , H04B10/16 , H04B10/2563 , H04B10/29 , H04B10/294 , H04B10/297 , H04B10/54 , H04B10/548 , H04B10/564 , H04B10/572 , H04J14/02 , H04B10/02
CPC分类号： H04B10/035 , H04B10/07 , H04B10/077 , H04B2210/074 , H04B2210/077 , H04B2210/078
摘要： A line monitoring apparatus which features a simple configuration is capable of quickly detecting a position where a failure has occurred. A main track signal on an up-stream optical transmission path is set for a different wavelength from that on a down-stream optical transmission path, so that the wavelength of loopback signals fed back from repeaters does not overlap the wavelength of the main track signals transmitted from a transmitting terminal station. This makes it possible to separate the main track signals and the loopback signals by using dividing circuits at receiving terminal stations. In addition, the level of the separated loopback signals can be set higher than that in the past; therefore, a monitoring signal can be quickly detected in the loopback signal.
摘要翻译：具有简单配置的线路监视装置能够快速检测发生故障的位置。上游光传输路径上的主轨道信号被设置为与下行光传输路径上不同的波长，使得从中继器反馈的环回信号的波长不与主轨道信号的波长重叠从发送终端发送。这使得可以通过在接收终端站处使用分频电路来分离主轨道信号和环回信号。另外，分离的环回信号的电平可以设置得比以前更高; 因此，可以在环回信号中快速检测出监视信号。

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