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1. 发明授权

US07437070B2 Submarine observation apparatus and submarine observation system 失效
标题翻译：潜艇观察装置和潜艇观测系统
公开(公告)号：US07437070B2
公开(公告)日：2008-10-14
申请号：US11060568
申请日：2005-02-18
申请人： Tasuku Fujieda , Hideki Goto , Kenichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
发明人： Tasuku Fujieda , Hideki Goto , Kenichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
IPC分类号： H04B10/08
CPC分类号： H04B10/0777 , H04B10/54 , H04B10/676 , H04B2210/078
摘要： In each of a plurality of submarine observation apparatus (1 to n), a branching unit (63) branches fixed-wavelength light (λ1) from an incoming wavelength-multiplexed light signal. An observation signal modulating unit (64) modulates the intensity of the branched fixed-wavelength light (λ1) with observation information multiplexed by an observation signal multiplex unit (61). A combining unit (65) combines light signals (λ2) to (λn) passing through the branching unit (63) and the fixed-wavelength light (λ1a) modulated by the observation signal modulating unit (64) into a composite light signal, and outputs it to an optical fiber (12a). Therefore, in each of the plurality of submarine observation apparatus (1 to n), there is no necessity for providing a wavelength-division-multiplexing-transmission optical transmitter which requires high wavelength stability.
摘要翻译：在多个海底观测装置（1〜n）的每一个中，分支单元（63）从输入的波长复用光信号分支固定波长光（λ1）。观测信号调制单元（64）利用由观测信号多路复用单元（61）复用的观测信息来调制分支固定波长光（λ1）的强度。组合单元（65）将通过分支单元（63）的光信号（λ2）与（兰博丹）和由观测信号调制单元（64）调制的固定波长光（λ1a）组合成复合光信号，并将其输出到光纤（12a）。因此，在多个海底观测装置（1〜n）中的每一个中，不需要提供需要高波长稳定性的波分复用传输光发射机。

2. 发明授权

US07102257B2 Submarine cable power feeding system 有权
公开(公告)号：US07102257B2
公开(公告)日：2006-09-05
申请号：US10365412
申请日：2003-02-13
申请人： Jun Muramatsu , Katsuyoshi Kawaguchi , Kenichi Asakawa
发明人： Jun Muramatsu , Katsuyoshi Kawaguchi , Kenichi Asakawa
IPC分类号： H01B7/30 , H02G15/14
CPC分类号： H04B3/44 , Y10T307/50 , Y10T307/642
摘要： A submarine cable power feeding system includes N (N is an integer of 2 or larger) main submarine cables extending from the land in the offshore direction, N-stage (N is an integer of 2 or larger) submarine feed branching devices, and first to Nth (N is an integer of 2 or larger) sub submarine cables. Each submarine feed branching device is connected to the main submarine cable to receive constant-voltage power from a constant-voltage feed unit. Each sub submarine cable connects the Nth-stage submarine feed branching device, connected to the Nth main submarine cable, to the adjacent submarine feed branching device through submarine repeaters, thereby receiving power from a constant-current feed unit. Each constant-current feed unit is built in the submarine feed branching device. The submarine feed branching devices and the submarine repeaters are arranged in a matrix on a plane.

3. 发明授权

US07539413B2 Observation apparatus and observation system 有权
标题翻译：观察仪器和观察系统
公开(公告)号：US07539413B2
公开(公告)日：2009-05-26
申请号：US11078339
申请日：2005-03-14
申请人： Hiroaki Munehira , Junichi Nakagawa , Toshiyuki Tokura , Kenichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
发明人： Hiroaki Munehira , Junichi Nakagawa , Toshiyuki Tokura , Kenichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
IPC分类号： H04B10/08 , H04B10/00 , H04B10/02
CPC分类号： H04B10/291 , H04B10/0771 , H04B2210/074 , H04B2210/078
摘要： The present invention discloses a submarine observation system in which a plurality of carrier lights assigned to each submarine observation equipment is transmitted from a land terminal apparatus to an optical submarine cable (down-going) by using a WDM transmission. In the submarine observation equipment, only a prescribed carrier light is demultiplexed by an optical demultiplexer, an observation signal indicating an observation result is generated by an observation device, intensity of the carrier light demultiplexed by the optical demultiplexer is modulated by an optical amplifier based on an observation signal, and the modulated carrier light is multiplexed by an optical multiplexer. The multiplexed carrier light is output to the optical submarine cable (up-going) to be returned to the land terminal apparatus being the transmission station. The land terminal apparatus is able to obtain an observation signal of each observation point by separating carrier lights based on each wavelength and receiving a separated carrier light of each wavelength. Accordingly, the system can be structured with one optical fiber and can be extendable by increasing or decreasing carrier lights, and either one of the land terminal apparatuses can receive an observation signal even when the optical submarine cable is cut off.
摘要翻译：本发明公开了一种潜艇观测系统，其中通过使用WDM传输将分配给每个潜艇观测设备的多个载波灯从陆地终端装置发送到光学海底电缆（下行）。在潜艇观察设备中，仅通过光解复用器对规定的载波进行解复用，由观察装置产生表示观察结果的观测信号，由光解复用器解复用的载波的强度由基于观测信号，并且调制载波用光复用器复用。复用的载波光被输出到光学海底电缆（向上），以返回到作为发送站的陆地终端设备。陆地终端装置能够通过基于每个波长分离载波来获得每个观测点的观测信号，并且接收每个波长的分离的载波。因此，该系统可以由一根光纤构成，并且可以通过增加或减少载波来扩展，并且即使当光学海底电缆被切断时，陆上终端设备中的任一个也可以接收观测信号。

4. 发明授权

US07166933B2 Submarine power feeding branching device for submarine power feeding system having submarine feeding cables arranged in mesh pattern 有权
标题翻译：海底供电分配装置，用于海底供电系统，海底供电电缆布置成网状
公开(公告)号：US07166933B2
公开(公告)日：2007-01-23
申请号：US10687931
申请日：2003-10-20
申请人： Jun Muramatsu , Kenichi Asakawa , Katsuyoshi Kawaguchi
发明人： Jun Muramatsu , Kenichi Asakawa , Katsuyoshi Kawaguchi
IPC分类号： H02J1/00 , H02J3/00 , H02J1/10
CPC分类号： B60L11/1824 , B60L11/1811 , H02J4/00 , Y02T10/7005 , Y02T10/7072 , Y02T90/12 , Y02T90/121 , Y02T90/127 , Y02T90/14 , Y10T307/313 , Y10T307/582 , Y10T307/642 , Y10T307/707 , Y10T307/713
摘要： A submarine power feeding branching device comprises a constant current-constant current converter which isolates an input side for a trunk submarine cable from an output side for a branch submarine cable. The converter receives a first constant current and produces a second constant current by using the first constant current. The second constant current is supplied to the output side while the first constant current is returned to the input side. Because the input side and the output side are isolated, it is easy to add/remove the device to/from a submarine power feeding system. Intensity of the second constant current can be controlled by controlling duty ratios of switches included in the converter. Thus, it is possible that the intensity of the second constant current is equal to that of the first constant current. Therefore, a submarine repeater can be provided along either the trunk cable or the branch cable.
摘要翻译：潜艇供电分支装置包括恒流恒流转换器，其将用于干线海底电缆的输入侧与分支海底电缆的输出侧隔离。转换器接收第一恒定电流并通过使用第一恒定电流产生第二恒定电流。第二恒定电流被提供给输出侧，而第一恒定电流返回到输入侧。因为输入侧和输出端是隔离的，所以很容易将设备添加到/从海底供电系统中去除。可以通过控制转换器中包括的开关的占空比来控制第二恒定电流的强度。因此，可以使第二恒定电流的强度等于第一恒定电流的强度。因此，可以沿着中继电缆或分支电缆提供潜艇中继器。

5. 发明申请

US20070069588A1 Submarine power feeding system having submarine feeding cables and power feeding branching devices 有权
标题翻译：海底供电系统具有海底馈电电缆和供电分支装置
公开(公告)号：US20070069588A1
公开(公告)日：2007-03-29
申请号：US11605299
申请日：2006-11-29
申请人： Jun Muramatsu , Kenichi Asakawa , Katsuyoshi Kawaguchi
发明人： Jun Muramatsu , Kenichi Asakawa , Katsuyoshi Kawaguchi
IPC分类号： H02J1/00
CPC分类号： B60L11/1824 , B60L11/1811 , H02J4/00 , Y02T10/7005 , Y02T10/7072 , Y02T90/12 , Y02T90/121 , Y02T90/127 , Y02T90/14 , Y10T307/313 , Y10T307/582 , Y10T307/642 , Y10T307/707 , Y10T307/713
摘要： A submarine power feeding branching device comprises a constant current-constant current converter which isolates an input side for a trunk submarine cable from an output side for a branch submarine cable. The converter receives a first constant current and produces a second constant current by using the first constant current. The second constant current is supplied to the output side while the first constant current is returned to the input side. Because the input side and the output side are isolated, it is easy to add/remove the device to/from a submarine power feeding system. Intensity of the second constant current can be controlled by controlling duty ratios of switches included in the converter. Thus, it is possible that the intensity of the second constant current is equal to that of the first constant current. Therefore, a submarine repeater can be provided along either the trunk cable or the branch cable.
摘要翻译：潜艇供电分支装置包括恒流恒流转换器，其将用于干线海底电缆的输入侧与分支海底电缆的输出侧隔离。转换器接收第一恒定电流并通过使用第一恒定电流产生第二恒定电流。第二恒定电流被提供给输出侧，而第一恒定电流返回到输入侧。因为输入侧和输出端是隔离的，所以很容易将设备添加到/从海底供电系统中去除。可以通过控制转换器中包括的开关的占空比来控制第二恒定电流的强度。因此，可以使第二恒定电流的强度等于第一恒定电流的强度。因此，可以沿着中继电缆或分支电缆提供潜艇中继器。

6. 发明申请

US20050259998A1 Submarine observation apparatus and submarine observation system 失效
标题翻译：潜艇观察装置和潜艇观测系统
公开(公告)号：US20050259998A1
公开(公告)日：2005-11-24
申请号：US11060568
申请日：2005-02-18
申请人： Tasuku Fujieda , Hideki Goto , Kenichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
发明人： Tasuku Fujieda , Hideki Goto , Kenichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
IPC分类号： G08C15/04 , G01V8/00 , G08C23/04 , H04B10/00 , H04B10/27 , H04B10/275 , H04B10/278 , H04B10/516 , H04B10/61 , H04J14/00 , H04J14/02 , H04B10/04
CPC分类号： H04B10/0777 , H04B10/54 , H04B10/676 , H04B2210/078
摘要： In each of a plurality of submarine observation apparatus (1 to n), a branching unit (63) branches fixed-wavelength light (λ1) from an incoming wavelength-multiplexed light signal. An observation signal modulating unit (64) modulates the intensity of the branched fixed-wavelength light (λ1) with observation information multiplexed by an observation signal multiplex unit (61). A combiningunit (65) combines lightsignals (λ2) to (λn) passing through the branching unit (63) and the fixed-wavelength light (λ1a) modulated by the observation signal modulating unit (64) into a composite light signal, and outputs it to an optical fiber (12a). Therefore, in each of the plurality of submarine observation apparatus (1 to n), there is no necessity for providing a wavelength-division-multiplexing-transmission optical transmitter which requires high wavelength stability.
摘要翻译：在多个海底观测装置（1〜n）的每一个中，分支单元（63）从输入的波长复用光信号分支固定波长光（λ1）。观测信号调制单元（64）利用由观测信号多路复用单元（61）复用的观测信息来调制分支固定波长光（λ1）的强度。组合单元（65）将通过分支单元（63）的光信号（λ2）与（兰布丹）和由观测信号调制单元（64）调制的固定波长光（λ1a）组合成复合光信号，并将其输出到光纤（12a）。因此，在多个海底观测装置（1〜n）中的每一个中，不需要提供需要高波长稳定性的波分复用传输光发射机。

7. 发明授权

US07768698B2 Raman amplifier and optical communication system 失效
标题翻译：拉曼放大器和光通信系统
公开(公告)号：US07768698B2
公开(公告)日：2010-08-03
申请号：US11661502
申请日：2004-08-30
申请人： Toshiyuki Tokura , Katsuhiro Shimizu , Tasuku Fujieda , Ken'ichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
发明人： Toshiyuki Tokura , Katsuhiro Shimizu , Tasuku Fujieda , Ken'ichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
IPC分类号： H04B10/17
CPC分类号： H01S3/302 , H01S3/06725 , H01S3/06758 , H01S3/094076 , H01S3/0941 , H01S3/10007 , H04B10/2916
摘要： A Raman amplifier includes a pumping light source, an optical coupler, and a Raman amplifier medium. The pumping light source outputs a pumping light that is intensity-modulated with a frequency equal to or higher than 100 megahertz. The optical coupler couples the pumping light with a carrier light. The Raman amplification medium is pumped by the pumping light to amplify the carrier light. The Raman amplification medium has characteristics of a low dispersion and a small difference between propagation times of the carrier light and the pumping light.
摘要翻译：拉曼放大器包括泵浦光源，光耦合器和拉曼放大器介质。泵浦光源输出以等于或高于100兆赫的频率进行强度调制的泵浦光。光耦合器将泵浦光与载体光耦合。通过泵浦光泵浦拉曼放大介质以放大载体光。拉曼放大介质具有载流子和泵浦光的传播时间之间的低色散和小差异的特征。

8. 发明申请

US20080013161A1 Raman Amplifier And Optical Communication System 失效
标题翻译：拉曼放大器和光通信系统
公开(公告)号：US20080013161A1
公开(公告)日：2008-01-17
申请号：US11661502
申请日：2004-08-30
申请人： Toshiyuki Tokura , Katsuhiro Shimizu , Tasuku Fujieda , Ken'ichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
发明人： Toshiyuki Tokura , Katsuhiro Shimizu , Tasuku Fujieda , Ken'ichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
IPC分类号： H01S3/00
CPC分类号： H01S3/302 , H01S3/06725 , H01S3/06758 , H01S3/094076 , H01S3/0941 , H01S3/10007 , H04B10/2916
摘要： A Raman amplifier includes a pumping light source, an optical coupler, and a Raman amplifier medium. The pumping light source outputs a pumping light that is intensity-modulated with a frequency equal to or higher than 100 megahertz. The optical coupler couples the pumping light with a carrier light. The Raman amplification medium is pumped by the pumping light to amplify the carrier light. The Raman amplification medium has characteristics of a low dispersion and a small difference between propagation times of the carrier light and the pumping light.
摘要翻译：拉曼放大器包括泵浦光源，光耦合器和拉曼放大器介质。泵浦光源输出以等于或高于100兆赫的频率进行强度调制的泵浦光。光耦合器将泵浦光与载体光耦合。通过泵浦光泵浦拉曼放大介质以放大载体光。拉曼放大介质具有载流子和泵浦光的传播时间之间的低色散和小差异的特征。

9. 发明授权

US07276811B2 Submarine power feeding system having submarine feeding cables and power feeding branching devices 有权
公开(公告)号：US07276811B2
公开(公告)日：2007-10-02
申请号：US11605299
申请日：2006-11-29
申请人： Jun Muramatsu , Kenichi Asakawa , Katsuyoshi Kawaguchi
发明人： Jun Muramatsu , Kenichi Asakawa , Katsuyoshi Kawaguchi
IPC分类号： H02J1/10 , H02J3/00
CPC分类号： B60L11/1824 , B60L11/1811 , H02J4/00 , Y02T10/7005 , Y02T10/7072 , Y02T90/12 , Y02T90/121 , Y02T90/127 , Y02T90/14 , Y10T307/313 , Y10T307/582 , Y10T307/642 , Y10T307/707 , Y10T307/713
摘要： A submarine power feeding branching device comprises a constant current-constant current converter which isolates an input side for a trunk submarine cable from an output side for a branch submarine cable. The converter receives a first constant current and produces a second constant current by using the first constant current. The second constant current is supplied to the output side while the first constant current is returned to the input side. Because the input side and the output side are isolated, it is easy to add/remove the device to/from a submarine power feeding system. Intensity of the second constant current can be controlled by controlling duty ratios of switches included in the converter. Thus, it is possible that the intensity of the second constant current is equal to that of the first constant current. Therefore, a submarine repeater can be provided along either the trunk cable or the branch cable.

10. 发明申请

US20050259264A1 Observation apparatus and observation system 有权
标题翻译：观察仪器和观察系统
公开(公告)号：US20050259264A1
公开(公告)日：2005-11-24
申请号：US11078339
申请日：2005-03-14
申请人： Hiroaki Munehira , Junichi Nakagawa , Toshiyuki Tokura , Kenichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
发明人： Hiroaki Munehira , Junichi Nakagawa , Toshiyuki Tokura , Kenichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
IPC分类号： G08C15/04 , G01D21/00 , G01V1/22 , G08C19/00 , G08C23/04 , G08C25/00 , H04B10/03 , H04B10/035 , H04B10/075 , H04B10/278 , H04B10/297 , H04J14/00 , H04J14/02 , G02B7/182
CPC分类号： H04B10/291 , H04B10/0771 , H04B2210/074 , H04B2210/078
摘要： The present invention discloses a submarine observation system in which a plurality of carrier lights assigned to each submarine observation equipment is transmitted from a land terminal apparatus to an optical submarine cable (down-going) by using a WDM transmission. In the submarine observation equipment, only a prescribed carrier light is demultiplexed by an optical demultiplexer, an observation signal indicating an observation result is generated by an observation device, intensity of the carrier light demultiplexed by the optical demultiplexer is modulated by an optical amplifier based on an observation signal, and the modulated carrier light is multiplexed by an optical multiplexer. The multiplexed carrier light is output to the optical submarine cable (up-going) to be returned to the land terminal apparatus being the transmission station. The land terminal apparatus is able to obtain an observation signal of each observation point by separating carrier lights based on each wavelength and receiving a separated carrier light of each wavelength. Accordingly, the system can be structured with one optical fiber and can be extendable by increasing or decreasing carrier lights, and either one of the land terminal apparatuses can receive an observation signal even when the optical submarine cable is cut off.
摘要翻译：本发明公开了一种潜艇观测系统，其中通过使用WDM传输将分配给每个潜艇观测设备的多个载波灯从陆地终端装置发送到光学海底电缆（下行）。在潜艇观察设备中，仅通过光解复用器对规定的载波进行解复用，由观察装置产生表示观察结果的观测信号，由光解复用器解复用的载波的强度由基于观测信号，并且调制载波用光复用器复用。复用的载波光被输出到光学海底电缆（向上），以返回到作为发送站的陆地终端设备。陆地终端装置能够通过基于每个波长分离载波来获得每个观测点的观测信号，并且接收每个波长的分离的载波。因此，该系统可以由一根光纤构成，并且可以通过增加或减少载波来扩展，并且即使当光学海底电缆被切断时，陆上终端设备中的任一个也可以接收观测信号。

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