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1. 发明公开

EP1429477A3 Optical power measuring system, terminal station and repeater therefor 审中-公开
标题翻译：光功率测量系统，终端站和中继器
公开(公告)号：EP1429477A3
公开(公告)日：2005-02-02
申请号：EP04002463.0
申请日：1998-08-12
申请人： Kokusai Denshin Denwa Kabushiki Kaisha
发明人： Horiuchi, Yukio c/o Kokusai Denshin , Yamamoto, Shu c/o Kokusai Denshin , Akiba, Shigeyuki c/o Kokusai Denshin
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04B10/07955 , H04B10/0775 , H04B10/0779 , H04B10/0799 , H04B2210/075 , H04B2210/078
摘要： An oscillator oscillates at a predetermined reference frequency, and a reference signal light sender generates light (reference signal light) of a specific wavelength deeply modulated by output from the oscillator. A frequency divider frequency-divides the output from the oscillator into a certain number, and outputs a tone signal of a predetermined measurement frequency. Output from the frequency divider is applied to selected one of a plurality of optical transmission signal senders via one of a plurality of switches, and is used to slightly intensity-modulate a corresponding optical transmission signal. An optical divider in an optical repeater outputs most of output light from an optical amplifier onto an optical fiber transmission line toward a terminal station, and applies small amounts of the light to a measuring circuit. The measuring circuit synchronously detects the measurement frequency component in the received light using the reference frequency obtained from the reference signal light of the specific wavelength. A modulator slightly varies the amplification gain of the other optical amplifier that amplifies the signal light travelling on the other optical fiber transmission line in response to results of measurement by the measuring circuit.
摘要翻译：振荡器以预定的参考频率振荡，参考信号光发射器产生由振荡器输出深度调制的特定波长的光（参考信号光）。分频器将来自振荡器的输出分频成一定数量，并输出预定测量频率的音调信号。来自分频器的输出经由多个开关中的一个被施加到多个光发送信号发送器中所选择的一个，并且被用于对相应的光发送信号进行轻微的强度调制。光中继器中的分光器将来自光放大器的大部分输出光输出到光纤传输线路上，并将少量光线照射到测量电路。测量电路使用从特定波长的参考信号光获得的参考频率来同步地检测接收到的光中的测量频率分量。根据测量电路的测量结果，调制器略微改变放大在另一条光纤传输线上传播的信号光的另一个光放大器的放大增益。

2. 发明公开

EP1429476A3 Optical power measuring system, terminal station and repeater therefor 审中-公开
公开(公告)号：EP1429476A3
公开(公告)日：2005-02-02
申请号：EP04002462.2
申请日：1998-08-12
申请人： Kokusai Denshin Denwa Kabushiki Kaisha
发明人： Horiuchi, Yukio c/o Kokusai DenshinDenwa , Yamamoto, Shu c/o Kokusai DenshinDenwa , Akiba, Shigeyuki/o Kokusai DenshinDenwa
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04B10/07955 , H04B10/0775 , H04B10/0779 , H04B10/0799 , H04B2210/075 , H04B2210/078
摘要： An oscillator oscillates at a predetermined reference frequency, and a reference signal light sender generates light (reference signal light) of a specific wavelength deeply modulated by output from the oscillator. A frequency divider frequency-divides the output from the oscillator into a certain number, and outputs a tone signal of a predetermined measurement frequency. Output from the frequency divider is applied to selected one of a plurality of optical transmission signal senders via one of a plurality of switches, and is used to slightly intensity-modulate a corresponding optical transmission signal. An optical divider in an optical repeater outputs most of output light from an optical amplifier onto an optical fiber transmission line toward a terminal station, and applies small amounts of the light to a measuring circuit. The measuring circuit synchronously detects the measurement frequency component in the received light using the reference frequency obtained from the reference signal light of the specific wavelength. A modulator slightly varies the amplification gain of the other optical amplifier that amplifies the signal light travelling on the other optical fiber transmission line in response to results of measurement by the measuring circuit.

3. 发明授权

EP0772308B1 Light receiving device 失效
标题翻译： Lichtempfangsvorrichtung
公开(公告)号：EP0772308B1
公开(公告)日：2002-10-09
申请号：EP96402339.4
申请日：1996-11-04
申请人： Kokusai Denshin Denwa Kabushiki Kaisha
发明人： Ryu, Shiro, c/o Kokusai Denshin Denwa K. K.
IPC分类号： H04B10/158
CPC分类号： H04B10/675

4. 发明授权

EP0780994B1 Feeding path switching circuit 失效
标题翻译：电路，用于切换电源路径
公开(公告)号：EP0780994B1
公开(公告)日：2002-09-25
申请号：EP96402828.6
申请日：1996-12-19
申请人： Kokusai Denshin Denwa Kabushiki Kaisha , KDD Submarine Cable Systems Inc.
发明人： Kojima, Junichi, c/o Kokusai Denshin Denwa K. K. , Asakawa, Kenichi, c/o Kokusai Denshin Denwa K. K. , Norimatsu, Naoki, c/o Kokusai Denshin Denwa K. K. , Nishikawa, Hitoshi, c/o Kokusai Denshin Denwa K.K.
IPC分类号： H04B3/44
CPC分类号： H04B3/44 , Y10T307/839

5. 发明授权

EP0770887B1 Submarine cable locating system 失效
标题翻译：用于定位海底电缆的布置
公开(公告)号：EP0770887B1
公开(公告)日：2002-08-07
申请号：EP96402283.4
申请日：1996-10-25
申请人： Kokusai Denshin Denwa Kabushiki Kaisha
发明人： Asakawa, Kenichi, Kokusai Denshin Denwa K.K. , Takagi, Satoru, Kokusai Denshin Denwa K.K.
IPC分类号： G01V3/02 , G01V3/15
CPC分类号： G01V3/15 , G01V3/02

6. 发明公开

EP0800291A3 Optical add-drop device 失效
标题翻译： Optische Vorrichtung zurEinfügung/ Ausblendung vonWellenlängen
公开(公告)号：EP0800291A3
公开(公告)日：2001-10-17
申请号：EP97400750.2
申请日：1997-04-01
申请人： Kokusai Denshin Denwa Kabushiki Kaisha
发明人： Ryu, Shiro, c/o Kokusai Denshin Denwa K.K.
IPC分类号： H04J3/08 , H04J3/14 , H04J14/02 , H04B10/213
CPC分类号： H04J14/0201 , H04J14/0212
摘要： The self-oscillation frequencies of injection-locked laser devices 5-1 through 5-M are preset to the frequency of the signal light to be transmitted by the optical add-drop device, and the self-oscillation frequencies of the injection-locked laser devices 6-1 through 6-N are preset to the frequency of the signal light to be branched by this device. Wavelength-division multiplexed signal light inputted from an input optical line 1 is split in an optical splitter 2 and inputted to the injection-locked laser devices. Signal light whose wavelength has been set for the injection-locked laser devices 5-1 through 5-M is amplified by these injection-locked laser devices 5-1 through 5-M and inputted to an optical combiner 10. Signal light whose wavelength has been set for the injection-locked laser devices 6-1 through 6-N is outputted to branching optical lines 8-1 through 8-N. Signal light outputted from inserting optical lines 9-1 through 9-L is inputted to the optical combiner 10 together with the signal light from the injection-locked laser devices 5-1 through 5-M and is outputted to an output optical line 11. It is thus possible to provide an optical add-drop device in which the wavelength and number of split or inserted signal light can be set as needed.
摘要翻译：注入锁定激光器件5-1至5-M的自振频率预设为由光学分插装置传输的信号光的频率，并且注入锁定激光器的自振频率设备6-1至6-N被预设为由该设备分支的信号光的频率。从输入光线路1输入的波分复用信号光在分光器2中被分割并输入到注入锁定的激光装置。通过这些注入锁定的激光装置5-1〜5-M对由注入锁定的激光装置5-1〜5-M设定的波长的信号光进行放大，并输入到光学组合器10.波长为被设定为注入锁定的激光装置6-1至6-N被输出到分支光线8-1至8-N。从插入光线9-1至9-L输出的信号光与来自注入锁定的激光装置5-1至5-M的信号光一起输入到光组合器10，并被输出到输出光线路11。因此，可以提供一种光分插装置，其中可以根据需要设定分光或插入信号光的波长和数量。

7. 发明公开

EP0771100A3 Telephone terminal with a card type automatic dialling device 失效
标题翻译：电话终端具有卡状的自动选择
公开(公告)号：EP0771100A3
公开(公告)日：2000-05-10
申请号：EP96117108.9
申请日：1996-10-24
申请人： KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA
发明人： Kouyama, Takeshi , Takehora, Takashi , Oikawa, Hideyuki
IPC分类号： H04M1/274 , H04M15/18
CPC分类号： H04M1/2765 , H04M17/00
摘要： A card reader 9 is loaded with a card which saves units of call credit. The card is capable of holding the telephone number of desired party registered by means of a controller circuit 16. For making a call, the telephone number is read out from the card and used in a dialing circuit 3 for automatic dialing. During the call, the call credit units are counted down according to a charge list for the party. Also, a language used for display on a liquid crystal display 8 and an amplitude of volume adjusted in the call may be registered in the card. When the call credit units are less than a reference level, a message of demanding the loading of a new card appears on the display 8. As the new card is loaded in place of the current card, the call can be continued without interruption. At the time, relevant data including the telephone number of party to be called and the displayed language are automatically transferred from the current card to the new card. Accordingly, the automatic dialing is implemented for calling and communicating with a desired party without the use of an extra facility at a local station.

8. 发明公开

EP0829979A3 Multi-wavelength light source and discrete-wavelength-variable light source 失效
标题翻译：多波长光源，并用离散的波长可变光源
公开(公告)号：EP0829979A3
公开(公告)日：1999-09-22
申请号：EP97114499.3
申请日：1997-08-21
申请人： Kokusai Denshin Denwa Kabushiki Kaisha
发明人： Miyazaki, Tetsuya, c/o Kokusai Denshin Denwa K.K. , Edagawa, Noburu, c/o Kokusai Denshin Denwa K.K. , Yamamoto, Shu, c/o Kokusai Denshin Denwa K.K.
IPC分类号： H04J14/02 , H04B10/145 , H04B10/155
CPC分类号： H01S3/2383 , H01S3/067 , H01S3/06791 , H01S3/08086 , H04B2210/258 , H04J14/02
摘要： In a light source for generating light containing multiple wavelengths substantially uniform in intensity, a wavelength demultiplexing element 10 (for example, waveguide-type wavelength selecting filter) demultiplexes input light into a plurality of wavelengths 1 through 32. Optical amplifiers 14-1 through 14-32 amplify outputs of the element 10 and applies them to input ports of a wavelength multiplexing element 12. The wavelength multiplexing element 12 wavelength-multiplexes their input. Output of the wavelength multiplexing element 12 is applied to a fiber coupler 16 which, in turn, applies one of its outputs to the wavelength demultiplexing element 10. The optical amplifiers 14 have a gain larger by approximately 10 dB than the loss in the optical loop made of the element 10, optical amplifier 14, element 12 and fiber coupler 16. The other output of the fiber coupler 16 is wavelength-multiplex light containing wavelengths 1 through 32.

9. 发明公开

EP0828174A3 Optical wavelength converter device and optical pulse phase detecting circuit 失效
标题翻译：光波长转换装置和光脉冲相位检测电路
公开(公告)号：EP0828174A3
公开(公告)日：1998-11-25
申请号：EP97114500.8
申请日：1997-08-21
申请人： Kokusai Denshin Denwa Kabushiki Kaisha
发明人： Edagawa, Noboru Kokusai Denshin Denwa K.K. , Suzuki, Masatoshi Kokusai Denshin Denwa K.K. , Yamamoto, Shu c/o Kokusai Denshin Denwa K.K.
IPC分类号： G02F1/015
CPC分类号： G02F2/004 , G02F2001/0157 , H01S5/509 , H04J14/08
摘要： A wavelength converter includes a transmission-type InGaAsP electroabsorption optical modulator 10 using the Franz-Keldysh effect. Continuous light (probe light) 12 as a target of wavelength conversion is fed to an end surface 10a of the optical modulator 10 while a constant voltage of 3V is applied to the optical modulator 10. An optical circulator 14 is supplied with original signal light (signal light to be wavelength-converted) 16 through its terminal A, and delivers it from the terminal B thereof to another end surface 10b of the optical modulator 10. The optical modulator 10 gives a loss to the probe light 12 according to the intensity of the original signal light 16 and makes the wavelength of the probe light 12 to be substantially the same as the original signal light. The probe light wavelength-converted by the optical modulator 10 and output from the end surface 10b is fed to a terminal B of an optical circulator 14 as a wavelength-converted light 18 and output from its terminal C.
摘要翻译：波长转换器包括使用Franz-Keldysh效应的透射型InGaAsP电吸收光调制器10。作为波长转换的目标的连续光（探测光）12被馈送到光调制器10的端面10a，同时向光调制器10施加3V的恒定电压。向光循环器14提供原始信号光（信号光通过其端子A被传输，并且将其从其端子B传送到光调制器10的另一端面10b。光调制器10根据光的强度给探测光12造成损失原信号光16并使探测光12的波长与原始信号光基本相同。由光调制器10波长转换并从端面10b输出的探测光作为波长转换光18被馈送到光环行器14的端子B并从端子C输出。

10. 发明公开

EP0777347A3 Optical transmission system and optical repeater 失效
标题翻译：一种光传输系统及光中继器
公开(公告)号：EP0777347A3
公开(公告)日：1998-04-15
申请号：EP96117627.8
申请日：1996-11-04
申请人： Kokusai Denshin Denwa Kabushiki Kaisha
发明人： Akiba, Shigeyuki, c/o Kokusai Denshin Denwa K.K. , Yamamoto, Shu, c/o Kokusai Denshin Denwa K.K. , Suzuki, Masatoshi, c/o Kokusai Denshin Denwa K.K. , Edagawa, Noboru, c/o Kokusai Denshin Denwa K.K. , Taga, Hidenori, c/o Kokusai Denshin Denwa K.K.
IPC分类号： H04B10/18 , H04B10/17
CPC分类号： H04B10/2935 , G02B6/29317 , G02B6/29394 , H04B10/25253
摘要： An optical transmission system comprises transmission optical fibers 14 connected between an optical transmission terminal 10 and an optical receiving terminal 12 via optical amplifying repeaters 16, and equalizing fiber 18 each connected in each equalizing interval. The equalizing fiber 18 is typically located at the terminal end of each equalizing interval. Each transmission optical fiber 14 is a dispersion-shifted fiber whose wavelength dispersion is substantially zero in a specific band, for example, 1.5 µm. The optical amplifying repeaters 16 include an optical amplifier, and a dispersion compensating optical element having wavelength dispersion characteristics that exhibit an inclination opposite from that of wavelength characteristics of wavelength dispersion of the transmission optical fiber 14 (more specifically, a minus inclination with respect to the wavelength). The dispersion compensating optical element compensates offset values of cumulative wavelength dispersion among different wavelengths. The dispersion compensating optical element can be made by a fiber grating technology.

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