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1. 发明授权

US4425512A Power supply system 失效
标题翻译：电源系统
公开(公告)号：US4425512A
公开(公告)日：1984-01-10
申请号：US367078
申请日：1982-04-09
申请人： Keiji Tomooka , Makoto Ogawa , Hideo Ishiguro
发明人： Keiji Tomooka , Makoto Ogawa , Hideo Ishiguro
IPC分类号： H04M11/06 , H04M11/00 , H04M19/00 , H04M19/08 , H01H1/60
CPC分类号： H04M19/08 , Y10T307/931
摘要： A power supply system for supplying a d.c. current from a center equipment to a terminal device through a two-wire line, is capable of properly supplying the current for communicating purposes irrespective of the connection condition of the two-wire line and accurately stopping the supply of current to the terminal device in the non-communicating condition.
摘要翻译：供电系统通过双线线路从中心设备到终端设备的电流能够适当地提供用于通信目的的电流，而不管双线线路的连接状况如何，并且准确地停止向终端设备提供的电流非沟通状况。

2. 发明授权

US6005699A Optical wavelength multiplexing system 失效
标题翻译：光波长复用系统
公开(公告)号：US6005699A
公开(公告)日：1999-12-21
申请号：US927277
申请日：1997-09-11
申请人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
发明人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
IPC分类号： H04B10/17 , H04J14/02 , H04Q11/00 , H04Q11/04 , H04B10/20
CPC分类号： H04J14/0295 , H04B10/2939 , H04J14/02 , H04J14/0241 , H04Q11/0062 , H04Q11/0478 , H04J14/0226 , H04J14/0227 , H04J14/0279 , H04J14/0283 , H04J14/0284 , H04J14/0286 , H04J14/0294 , H04J2203/0051 , H04Q2011/0069 , H04Q2011/0081 , H04Q2011/0083
摘要： An optical transmission system accomplishes optical transmission to a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission to a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-to-electric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, an with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.
摘要翻译：光传输系统通过将多路复用线路终端与光放大器，线性中继器和具有组合在一起的光放大器的再生器组合来实现长距离的光传输。该系统还通过直接连接它们之间的线性端子来实现光传输到短距离，其中电光转换器由具有半导体放大器的电光转换器代替，其中光电转换器由具有雪崩光电二极管作为光接收器的光电转换器，在复用线路终端中不使用任何光学增强放大器和光学前置放大器。利用这些，可以根据所需的传输距离容易地构造光传输系统。

3. 发明授权

US5586115A Add-drop multiplexer 失效
标题翻译：分插复用器
公开(公告)号：US5586115A
公开(公告)日：1996-12-17
申请号：US435046
申请日：1995-05-08
申请人： Yukio Nakano , Keiji Tomooka
发明人： Yukio Nakano , Keiji Tomooka
IPC分类号： H04J3/00 , H04J3/08 , H04J3/16 , H04Q11/04 , H04J14/08
CPC分类号： H04Q11/04 , H04J3/08 , H04J3/1611 , H04Q11/0478 , H04J2203/0089
摘要： An add-drop multiplexer having a plurality of OC--N and OC--M (M
摘要翻译：一种具有多个OC-N和OC-M（M

4. 发明授权

US4658217A Timing signal extracting circuit 失效
标题翻译：定时信号提取电路
公开(公告)号：US4658217A
公开(公告)日：1987-04-14
申请号：US654897
申请日：1984-09-27
申请人： Hiroshi Takatori , Toshiro Suzuki , Keiji Tomooka
发明人： Hiroshi Takatori , Toshiro Suzuki , Keiji Tomooka
IPC分类号： H04L7/00 , H04L7/02 , H04L7/027 , H04L7/033 , H03B1/00 , H03K5/13 , H03L7/00
CPC分类号： H04L7/0054 , H04L7/027
摘要： A timing signal extraction circuit has a clock signal extractor for extracting from a transmitted data signal a clock component synchronous with the transmission rate of the transmitted signal, an oscillator having an oscillation frequency about M (M: an integer) times as high as the transmission rate of the transmitted signal, a phase-locked loop detecting the phase difference between the output signal of a frequency divider frequency-dividing the output signal of the oscillator and the output signal of the clock signal extractor thereby controlling the operating phase of the oscillator, and a logic circuit producing a plurality of pulse trains whose bit rate is equal to the transmission rate of the transmitted signal and which have respectively different phases. A pulse train having a desired phase is selected from among the plural pulse trains to provide a decision timing signal.
摘要翻译：定时信号提取电路具有时钟信号提取器，用于从发送的数据信号中提取与发送信号的传输速率同步的时钟分量，振荡器的振荡频率大约为传输的M（M：整数）倍发送信号的速率，锁相环检测分频振荡器的输出信号的分频器的输出信号与时钟信号提取器的输出信号之间的相位差，从而控制振荡器的工作相位，以及产生多个脉冲串的逻辑电路，其比特率等于发送信号的传输速率，并且具有分别不同的相位。从多个脉冲串中选择具有期望相位的脉冲串，以提供判定定时信号。

5. 发明授权

US06728489B2 Optical transmission system constructing method and system 失效
标题翻译：光传输系统构造方法与系统
公开(公告)号：US06728489B2
公开(公告)日：2004-04-27
申请号：US09907939
申请日：2001-07-19
申请人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
发明人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
IPC分类号： H04J1402
CPC分类号： H04B10/275 , H04B10/077 , H04B10/0773 , H04B10/25137 , H04B10/27 , H04J14/0221 , H04J14/0227 , H04J14/0279 , H04J14/0283 , H04J14/0286
摘要： An optical transmission system accomplishes optical transmission to a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission to a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-to-electric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, an with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.
摘要翻译：光传输系统通过将多路复用线路终端与光放大器，线性中继器和具有组合在一起的光放大器的再生器组合来实现长距离的光传输。该系统还通过直接连接它们之间的线性端子来实现光传输到短距离，其中电光转换器由具有半导体放大器的电光转换器代替，其中光电转换器由具有雪崩光电二极管作为光接收器的光电转换器，在复用线路终端中不使用任何光学增强放大器和光学前置放大器。利用这些，可以根据所需的传输距离容易地构造光传输系统。

6. 发明授权

US6018405A Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal 有权
标题翻译：发送放大的光数据信号和光监视信号的光传输设备
公开(公告)号：US6018405A
公开(公告)日：2000-01-25
申请号：US244856
申请日：1999-02-05
申请人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
发明人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
IPC分类号： H04B10/00 , H04B10/02 , H04B10/08 , H04B10/17 , H04J3/14 , H04J14/02 , H04Q11/00 , H04Q11/04
CPC分类号： H04B10/291 , H04B10/0773 , H04B10/0775 , H04B10/0777 , H04B10/2912 , H04B10/2914 , H04B10/299 , H04J14/02 , H04J14/0221 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0283 , H04J14/0284 , H04J3/085 , H04J3/14 , H04Q11/0062 , H04Q11/0478 , H04B2210/003 , H04B2210/072 , H04B2210/078 , H04J14/0226 , H04J14/0227 , H04J14/0279 , H04J14/0286 , H04J2203/0051 , H04J2203/006 , H04Q2011/0069 , H04Q2011/0081 , H04Q2011/0083
摘要： An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.
摘要翻译：光传输系统通过将复用线路终端与光放大器，线性中继器和再生器组合在一起，实现长距离的光传输。该系统还通过直接连接它们之间的线性端子来实现短距离的光传输，其中电光转换器由具有半导体放大器的电光转换器代替，光电转换器由光学器件电转换器，其具有雪崩光电二极管作为光接收器，并且在复用线路终端中不使用任何光学增强放大器和光学前置放大器。利用这些，可以根据所需的传输距离容易地构造光传输系统。

7. 发明授权

US07292785B2 Optical transmission system constructing method and system 失效
公开(公告)号：US07292785B2
公开(公告)日：2007-11-06
申请号：US11593518
申请日：2006-11-07
申请人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
发明人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
IPC分类号： H04B10/20
CPC分类号： H04B10/275 , H04B10/077 , H04B10/0773 , H04B10/25137 , H04B10/27 , H04J14/0221 , H04J14/0227 , H04J14/0279 , H04J14/0283 , H04J14/0286
摘要： An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.

8. 发明申请

US20070053687A1 Optical transmission system constructing method and system 失效
公开(公告)号：US20070053687A1
公开(公告)日：2007-03-08
申请号：US11593518
申请日：2006-11-07
申请人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
发明人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
IPC分类号： H04B10/08
CPC分类号： H04B10/275 , H04B10/077 , H04B10/0773 , H04B10/25137 , H04B10/27 , H04J14/0221 , H04J14/0227 , H04J14/0279 , H04J14/0283 , H04J14/0286
摘要： An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.

9. 发明授权

US07167652B2 Optical transmission system constructing method and system 失效
标题翻译：光传输系统构造方法与系统
公开(公告)号：US07167652B2
公开(公告)日：2007-01-23
申请号：US10777656
申请日：2004-02-13
申请人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
发明人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
IPC分类号： H04J14/02
CPC分类号： H04B10/275 , H04B10/077 , H04B10/0773 , H04B10/25137 , H04B10/27 , H04J14/0221 , H04J14/0227 , H04J14/0279 , H04J14/0283 , H04J14/0286
摘要： An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.
摘要翻译：光传输系统通过将复用线路终端与光放大器，线性中继器和再生器组合在一起，实现长距离的光传输。该系统还通过直接连接它们之间的线性端子来实现短距离的光传输，其中电光转换器由具有半导体放大器的电光转换器代替，光电转换器由光学器件具有雪崩光电二极管作为光接收器，并且在复用线路终端中不使用任何光学增强放大器和光学前置放大器。利用这些，可以根据所需的传输距离容易地构造光传输系统。

10. 发明授权

US06266169B1 Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal 有权
标题翻译：发送放大的光数据信号和光监视信号的光传输设备
公开(公告)号：US06266169B1
公开(公告)日：2001-07-24
申请号：US09409872
申请日：1999-10-01
申请人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
发明人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
IPC分类号： H04J1402
CPC分类号： H04B10/275 , H04B10/077 , H04B10/0773 , H04B10/25137 , H04B10/27 , H04J14/0221 , H04J14/0227 , H04J14/0279 , H04J14/0283 , H04J14/0286
摘要： An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-to-electric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.
摘要翻译：光传输系统通过将复用线路终端与光放大器，线性中继器和再生器组合在一起，实现长距离的光传输。该系统还通过直接连接它们之间的线性端子来实现短距离的光传输，其中电光转换器由具有半导体放大器的电 - 光转换器代替，光电转换器由具有雪崩光电二极管作为光接收器的光电转换器，并且在复用线路终端中不使用任何光学增强放大器和光学前置放大器。利用这些，可以根据所需的传输距离容易地构造光传输系统。

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