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1. 发明授权

US5323258A Homodyne optical receiver equipment 失效
标题翻译：零差光接收机设备
公开(公告)号：US5323258A
公开(公告)日：1994-06-21
申请号：US771444
申请日：1991-10-04
申请人： Hideaki Tsushima , Ryoji Takeyari , Shinya Sasaki , Shigeki Kitajima , Katsuhiko Kuboki
发明人： Hideaki Tsushima , Ryoji Takeyari , Shinya Sasaki , Shigeki Kitajima , Katsuhiko Kuboki
IPC分类号： H04B10/516 , H04B10/07 , H04B10/61 , H04B10/06
CPC分类号： H04B10/61 , H04B10/614 , H04B10/63
摘要： A homodyne optical receiver includes a polarization beam splitter for dividing an optical signal into an optical signal with horizontal polarization and an optical signal with vertical polarization. Optical couplers combine two optical signals of the two polarized components with two optical local signals, which signals are almost matched therewith in polarization, and in a state where they are matched with each other in phase. Detectors homodyne-detect respective output optical signals of the optical couplers and two weighting circuits assign output signals of the detectors weights which are approximately proportional to amplitudes thereof, respectively. An adder adds output signals of the weighting circuits.
摘要翻译：零差光接收机包括用于将光信号分解为具有水平偏振的光信号和具有垂直偏振的光信号的偏振分束器。光耦合器将两个偏振分量的两个光信号与两个光学本地信号组合，这些信号在偏振中几乎匹配，并且在相位相互匹配的状态下。检测器零差检测光耦合器的相应输出光信号，并且两个加权电路分别分配与其幅度近似成比例的检测器权重的输出信号。加法器加上加权电路的输出信号。

2. 发明授权

US5142402A Polarization diversity optical receiving apparatus and method 失效
标题翻译：极化分集光接收装置及方法
公开(公告)号：US5142402A
公开(公告)日：1992-08-25
申请号：US450697
申请日：1989-12-14
申请人： Hideaki Tsushima , Shinya Sasaki , Ryoji Takeyari
发明人： Hideaki Tsushima , Shinya Sasaki , Ryoji Takeyari
IPC分类号： G02F2/00 , H04B7/10 , H04B10/07 , H04B10/516 , H04B10/61
CPC分类号： H04B10/61 , H04B10/614 , H04B10/64
摘要： A polarization diversity optical receiving apparatus comprises at least one frequency converter for performing frequency conversion upon an IF signal, an adder for adding two IF signals together, and a demodulator for converting a signal outputted from the adder to a baseband signal.
摘要翻译：极化分集光接收装置包括至少一个用于对IF信号进行频率转换的频率转换器，用于将两个IF信号相加在一起的加法器和用于将从加法器输出的信号转换为基带信号的解调器。

3. 发明授权

US5515196A Optical intensity and phase modulators in an optical transmitter apparatus 失效
标题翻译：光发射机设备中的光强度和相位调制器
公开(公告)号：US5515196A
公开(公告)日：1996-05-07
申请号：US42380
申请日：1993-04-02
申请人： Shigeki Kitajima , Hirohisa Sano , Katsuhiko Kuboki , Shinya Sasaki
发明人： Shigeki Kitajima , Hirohisa Sano , Katsuhiko Kuboki , Shinya Sasaki
IPC分类号： G02F1/03 , G02F1/017 , G02F1/35 , H04B10/2513 , H04B10/2537 , H04B10/516 , H04B10/54 , H04B10/556 , H04B10/572 , H04B10/588 , H04B10/61 , H04B10/04
CPC分类号： B82Y20/00 , G02F1/01708 , H04B10/2537 , G02F2203/25
摘要： An optical transmitter apparatus comprises a light source for optical signal transmission, an intensity modulator, a transmit signal generator and a signal generator. A transmit signal to be transmitted is supplied from the transmit signal generator to the intensity modulator, while a signal generated by the signal generator is supplied to the phase modulator. A light beam emitted from the light source passes through the intensity modulator and the phase modulator to be subsequently sent out as an optical signal for transmission with intensity thereof being modulated upon passing through the intensity modulator while spectrum thereof being spread by phase modulation which the optical signal undergoes upon passing through the phase modulator.
摘要翻译：光发射机装置包括用于光信号传输的光源，强度调制器，发射信号发生器和信号发生器。要发送的发送信号从发送信号发生器提供给强度调制器，而由信号发生器产生的信号被提供给相位调制器。从光源发射的光束通过强度调制器和相位调制器，随后作为光信号发送出去，随着其强度在通过强度调制器时被调制，而其光谱通过相位调制扩展，光学信号在通过相位调制器时经历。

4. 发明授权

US5408349A Optical frequency division multiplexing transmission system 失效
标题翻译：光分频复用传输系统
公开(公告)号：US5408349A
公开(公告)日：1995-04-18
申请号：US907502
申请日：1992-07-01
申请人： Hideaki Tsushima , Shinya Sasaki , Katsuhiko Kuboki
发明人： Hideaki Tsushima , Shinya Sasaki , Katsuhiko Kuboki
IPC分类号： H04B10/50 , H04B10/508 , H04B10/572 , H04J14/02 , H04B10/04 , H04B10/06
CPC分类号： H04B10/572 , H04B10/50 , H04B10/506 , H04B10/508
摘要： An optical frequency division multiplexing transmission system for sending a large volume of information by a single optical fiber is disclosed. Each of an optical frequency division multiplexing transmitter equipment and an optical frequency division multiplexing receiver equipment has an optical filter having a periodic optical transmission characteristic therein. Each optical filter is stabilized with an absolutely-stabilized standard optical frequency. Each optical signal frequency is stabilized to a periodic transmission characteristic of the optical filter arranged in the optical frequency division multiplexing transmitter equipment, and each local frequency to a periodic transmission characteristic of the optical filter arranged in the optical frequency division multiplexing receiver equipment. Even in the case where no optical signal is applied to the optical frequency division multiplexing receiver equipment due to such causes as a fault of the transmission optical source or the breakage of an optical fiber, the local optical source frequency continues to be controlled in stable fashion.
摘要翻译：公开了一种用于通过单个光纤发送大量信息的光分频复用传输系统。光分频复用发射机设备和光分频多路复用接收机设备中的每一个具有其中具有周期性光传输特性的滤光器。每个滤光片均采用绝对稳定的标准光学频率进行稳定。每个光信号频率被稳定为布置在光分频复用发射机设备中的光滤波器的周期性传输特性，并且每个本地频率被布置在光分频多路复用接收机设备中的滤波器的周期性传输特性。即使在由于传输光源的故障或光纤的断裂等原因而不对光分频多路复用接收机设备施加光信号的情况下，本地光源频率继续以稳定的方式被控制。

5. 发明授权

US5144467A Optical tuning method and apparatus suitable for selective reception of optical frequency division multiplex signals 失效
标题翻译：适用于选择性接收光分频复用信号的光调谐方法和装置
公开(公告)号：US5144467A
公开(公告)日：1992-09-01
申请号：US557721
申请日：1990-07-25
申请人： Shigeki Kitajima , Kiichi Yamashita , Shinya Sasaki , Hideaki Tsushima
发明人： Shigeki Kitajima , Kiichi Yamashita , Shinya Sasaki , Hideaki Tsushima
IPC分类号： G02F2/00 , G02F2/02 , H04B10/07 , H04B10/516 , H04B10/54 , H04B10/548 , H04B10/564 , H04B10/572 , H04B10/61 , H04J14/00 , H04J14/02
CPC分类号： H04B10/60 , H04B10/64 , H04J14/02
摘要： An optical tuning device including a channel designator and an intermediate frequency stabilizer for stabilizing the frequency of a difference signal corresponding to the frequency difference between a transmitted optical signal and a local oscillation optical signal. The channel designator includes a bias control circuit for continuously changing the optical frequency of a local oscillation light source up to a frequency corresponding to a target channel, a channel detection circuit for detecting channel passage on the basis of the difference signal, and a channel counting circuit for storing therein the selected channel and the target channel, detecting the direction of the target channel, counting the number of channel passage times, and detecting arrival at the target channel.
摘要翻译：一种光调谐装置，包括通道指示器和中频稳定器，用于稳定对应于所发射的光信号和本地振荡光信号之间的频差的差信号的频率。通道指示器包括用于连续地将本地振荡光源的光频率改变到对应于目标通道的频率的偏置控制电路，用于基于差分信号检测通道通道的通道检测电路，以及通道计数用于在其中存储所选择的信道和目标信道的电路，检测目标信道的方向，计数信道通过时间的数量，以及检测目标信道的到达。

6. 发明授权

US5305134A Optical frequency division multiplexing transmitter and optical frequency division multiplexing transmission apparatus 失效
标题翻译：光分频复用发射机和光分频复用传输装置
公开(公告)号：US5305134A
公开(公告)日：1994-04-19
申请号：US574086
申请日：1990-08-29
申请人： Hideaki Tsushima , Shinya Sasaki , Shigeki Kitajima , Kiichi Yamashita
发明人： Hideaki Tsushima , Shinya Sasaki , Shigeki Kitajima , Kiichi Yamashita
IPC分类号： G02F2/00 , H04B10/07 , H04B10/54 , H04B10/548 , H04J14/00 , H04J14/02 , H04B14/02 , H04B10/06
CPC分类号： H04B10/50 , H04B10/5563 , H04B10/572
摘要： An optical frequency division multiplexing transmitter is disclosed, which comprises a plurality of optical transmitters having different optical frequencies; an optical combiner multiplexing optical signals outputted by the different optical transmitters; and an optical filter having passbands, the frequency of each of which is approximately in accordance with the frequency of each of the signals, in which the signal thus multiplexed is inputted.
摘要翻译：公开了一种光频分复用发射机，其包括具有不同光频率的多个光发射机; 光合并器复用由不同光发射机输出的光信号; 以及具有通带的滤光器，其中的每一个的频率近似地与输入了如此多路复用的信号的每个信号的频率一致。

7. 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。

8. 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。

9. 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。

10. 发明授权

US5861972A Optical multiplex transmission equipment and method 失效
标题翻译：光复用传输设备及方法
公开(公告)号：US5861972A
公开(公告)日：1999-01-19
申请号：US744492
申请日：1996-11-06
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 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-toelectric 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，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的电 - 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。

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