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1. 发明专利

JP2005311722A Optical transmission system, and its transmitter and receiver 有权
标题翻译：光传输系统及其发射机和接收机
公开(公告)号：JP2005311722A
公开(公告)日：2005-11-04
申请号：JP2004126023
申请日：2004-04-21
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： FUKUSHIMA SEIJI , SUGIMOTO NAOTO , AKATSU YUJI , TOBA HIROSHI
IPC分类号： H04J11/00 , H04B10/25 , H04B10/2507 , H04B10/516 , H04B10/61 , H04J14/00 , H04J14/04 , H04J14/06 , H04B10/02 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To relax distance limiting and band limiting caused by wavelength dispersion and mode dispersion by introducing an OFDM (orthogonal frequency division multiplexing) modulation and demodulation technology as a modulating means of optical transmission.
SOLUTION: A transmitter 10 consists of an OFDM modulator 11 for making a data signal to be transmitted into an OFDM signal, a laser diode 12 for converting the OFDM signal from the OFDM modulator 11 into an optical signal and an optical amplifier 13 for amplifying the optical signal from the laser diode 12. A receiver 30 consists of a photodiode 31 for receiving the optical signal converted by the laser diode 12 of the transmitter 10 through an optical fiber 20 and converting the optical signal into an electric signal and an amplifier 32 for amplifying the electric signal converted by the photodiode 31 and an OFDM demodulator 33 for demodulating the electric signal from the amplifier 32 to an OFDM signal. The transmitter 10 is connected to the receiver 30 by the optical fiber 20.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过引入作为光传输的调制装置的OFDM（正交频分复用）调制和解调技术来放宽由波长色散和模式色散引起的距离限制和频带限制。解决方案：发射机10由用于使数据信号发送到OFDM信号中的OFDM调制器11，用于将来自OFDM调制器11的OFDM信号转换为光信号的激光二极管12和光放大器13 用于放大来自激光二极管12的光信号。接收器30由光电二极管31组成，用于通过光纤20接收由发射器10的激光二极管12转换的光信号，并将光信号转换为电信号用于放大由光电二极管31转换的电信号的放大器32和用于将来自放大器32的电信号解调为OFDM信号的OFDM解调器33。发射机10通过光纤20连接到接收机30.版权所有：（C）2006，JPO＆NCIPI

2. 发明专利

JP2005094507A Optical lan card 审中-公开
标题翻译：光学卡
公开(公告)号：JP2005094507A
公开(公告)日：2005-04-07
申请号：JP2003326750
申请日：2003-09-18
申请人： Nippon Telegr & Teleph Corp , Toshiba Corp , 日本電信電話株式会社 , 株式会社東芝
发明人： SUGIMOTO NAOTO , SUZUKI YASUHIRO , SAKAI YOSHIHISA , TOBA HIROSHI , OGUCHI KIMIO , HONDA TOMOKO , TAKAHASHI FUJIO , HONDA SATOSHI , INOUE ATSUO , OBUCHI SHINOBU
IPC分类号： G02B6/42 , H01R31/06 , H04B10/00 , H04B10/25 , H05K7/12 , H04B10/12 , H04B10/13 , H04B10/135 , H04B10/14
摘要： PROBLEM TO BE SOLVED: To make an optical LAN card small and thin, by fixing an adapter firmly.
SOLUTION: The optical LAN card 10 includes an optical module 14 for transmitting and receiving an optical signal through an optical fiber cable 3. In the optical LAN card 10, an adaptor 13 connected to the optical module 14 has a connector part 13a to which a plug 3a provided at an end of the optical cable 3 is inserted, and a cabinet 21 having an opening 21c through which the plug 3a is attached and removed to and from the connector part 13a, and used for storing the adapter 13 and the optical module 14, are provided. The adapter 13 is fixed to the inner face of the cabinet 21 in a way that the connecter 13a and the opening 21c are put opposite. The adapter 13 is fixed by ribs 23a, 23b formed at the inner face of the cabinet 21a. The ribs 23a, 23b are L-shaped ones, as an example, in contact with the bottom end of the adapter 13.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过牢固地固定适配器，使光学LAN卡小而薄。解决方案：光LAN卡10包括用于通过光纤电缆3发送和接收光信号的光模块14.在光LAN卡10中，连接到光模组14的适配器13具有连接器部分13a 设置在光缆3端部的插头3a插入其中，并且具有开口21c的机壳21，插头3a通过该开口21c连接到连接器部13a并从连接器部13a移除，并用于存放适配器13和光学模块14。适配器13以连接器13a和开口21c相对的方式固定到机壳21的内表面。适配器13由形成在机壳21a的内表面的肋23a，23b固定。作为示例，肋23a，23b是L形的，与适配器13的底端接触。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004350184A Wavelength multiplex access system 审中-公开
公开(公告)号：JP2004350184A
公开(公告)日：2004-12-09
申请号：JP2003147320
申请日：2003-05-26
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： FUKUSHIMA SEIJI , SUZUKI YASUHIRO , SUGIMOTO NAOTO
IPC分类号： G02F1/01 , G02F1/015 , G02F2/00 , H01S5/00 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide a wavelength multiplex access system in which wavelengths of an entire system can be managed only with the wavelength control of one laser light source in spite of the wavelength multiplex access system, and a master station and slave stations are simplified and improved in maintainability at low cost. SOLUTION: In the wavelength multiplex access system composed of a master station 1, a plurality of slave stations 2 and an optical transmission line 3 connecting them, an optical frequency COM generator 4, a first wavelength filter 5a, a 4-port circulator 7 and a second wavelength filter 5b are connected in order in the master station 1, an optical modulator 6 is connected to a first intermediate terminal of the 4-port circulator 7, and a photo-diode 8 is connected to a second intermediate terminal of the 4-port circulator 7. Each of the slave stations 2 is then composed of a third wavelength filter 5c and a semiconductor optical amplifier transceiver 9. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2006050359A Optical transmitter, optical receiver, optical transceiver, and optical transmission system 审中-公开
标题翻译：光学发射器，光接收器，光收发器和光传输系统
公开(公告)号：JP2006050359A
公开(公告)日：2006-02-16
申请号：JP2004230071
申请日：2004-08-06
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： FUKUSHIMA SEIJI , SUGIMOTO NAOTO , AKATSU YUJI
IPC分类号： H04J14/00 , H04B1/707 , H04B10/00 , H04J14/04 , H04J14/06
摘要： PROBLEM TO BE SOLVED: To realize low-cost optical transmitters and receivers by performing code-division multiple processing in an electric region for multiplexing a light signal.
SOLUTION: The optical transmitter 1a superimposes the light signal corresponding to diffused data (a) obtained by diffusing electric data (a) by a PN series code (an electric signal) generated in a PN series generator 4a, on a light signal corresponding to diffused data (b) obtained by diffusing electric data (b) by a PN series code generated in a PN series generator 4b for outputting. The optical receiver 2a reproduces the data (a) by inversely diffusing the light signal containing the diffused data (a) by the PN series code generated by a PN series generator 4c. The optical receiver 2b reproduces the data (b) by inversely diffusing the light signal containing the diffused data (b) by the PN series code generated by a PN series generator 4d. As a result, the light signal is superimposed and is transmitted in optical fiber 3a, but the data (a) and (b) are recognized for reproduction by the optical receivers 2a and 2b, respectively.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过在用于复用光信号的电区域中执行码分多处理来实现低成本的光发射机和接收机。解决方案：光发射机1a将对应于通过扩散电数据（a）获得的扩散数据（a）的光信号叠加在PN系列发生器4a中产生的PN串码（电信号）上的光信号对应于通过在PN系列发生器4b中产生的用于输出的PN序列码扩散电数据（b）而获得的扩散数据（b）。光接收器2a通过由PN系列发生器4c产生的PN序列码将包含扩散数据（a）的光信号反扩散，再现数据（a）。光接收机2b通过将包含扩散数据（b）的光信号与由PN系列发生器4d产生的PN串码进行反扩散，再现数据（b）。结果，光信号被叠加并在光纤3a中传输，但是数据（a）和（b）分别被光接收器2a和2b识别为再现。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005159844A Optical transmission apparatus and network maintenance monitoring method using the same 有权
标题翻译：光传输设备和网络维护监控方法
公开(公告)号：JP2005159844A
公开(公告)日：2005-06-16
申请号：JP2003397297
申请日：2003-11-27
申请人： Hirakawa Hewtech Corp , Nippon Telegr & Teleph Corp , Ntt Electornics Corp , エヌティティエレクトロニクス株式会社 , 平河ヒューテック株式会社 , 日本電信電話株式会社
发明人： MATSUMOTO RYOICHI , OHATA HIROYOSHI , OKAMOTO HIDEYUKI , SUZUKI YASUHIRO , SUGIMOTO NAOTO , SAKAI YOSHIHISA , SAWAGUCHI KENICHI , SUZUKI HIROKI
IPC分类号： H04B10/035 , H04B10/07 , H04B10/29 , H04B10/524 , H04B10/80 , H04L12/28 , H04B10/08
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission apparatus which is directly connected to an external apparatus connecting bus of an information processor, and of which operation can be controlled from the information processor and driving power can be provided from the information processor, and to provide a network maintenance monitoring method using the same. SOLUTION: An optical transmission apparatus 30 includes: an interface unit 21; a MAC layer termination unit 22; a physical layer termination unit 23; a maintenance control unit 24 for generating and extracting, between the physical layer termination unit and the MAC layer termination unit, a maintenance signal 62 for monitoring the maintenance of the optical transmission apparatus; and a maintenance signal adding and extracting means for adding the maintenance signal to a frame 53 transmitted from the MAC layer termination unit in response to an instruction to the maintenance control unit of an information processor 32 or for inputting the maintenance signal extracted from the frame 53 transmitted from the physical layer termination unit to the information processor in response to the instruction to the maintenance control unit of the information processor. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种直接连接到信息处理器的外部设备连接总线的光传输设备，并且可以从信息处理器控制哪个操作并且可以从信息处理器提供驱动功率，并提供使用其的网络维护监视方法。光传输装置30包括：接口单元21; MAC层终端单元22; 物理层终端单元23; 维护控制单元24，用于在物理层终端单元和MAC层终端单元之间生成和提取用于监视光传输设备的维护的维护信号62; 以及维护信号添加和提取装置，用于响应于向信息处理器32的维护控制单元的指令或从帧53提取的维护信号输入将维护信号添加到从MAC层终端单元发送的帧53 响应于对信息处理器的维护控制单元的指示，从物理层终端单元发送到信息处理器。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004096720A Interface device, optical access system, and optical lan system 审中-公开
公开(公告)号：JP2004096720A
公开(公告)日：2004-03-25
申请号：JP2003188482
申请日：2003-06-30
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SUGIMOTO NAOTO , SUZUKI YASUHIRO , SAKAI YOSHIHISA , OGUCHI KIMIO , TOBA HIROSHI
IPC分类号： H04B10/60 , H04B10/272 , H04B10/40 , H04B10/50 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/26 , H04B10/28
摘要： PROBLEM TO BE SOLVED: To provide an interface device which is miniaturized to save the space and to reduce costs, an optical access system and an optical LAN system. SOLUTION: An optical/electrical signal interface device 413 to be used for data communications is provided with one optical fiber 411-1, an optical transmitting-receiving module 412 which is connected to the one optical fiber 411-1 and uses wavelengths different for transmitting and receiving light to realize a full duplex system in the one optical fiber 411-1, and a card bus interface 416a for transmitting-receiving an electrical signal to be transmitted-received by the optical transmitting-receiving module 412 corresponding to transmitting-receiving of light to electrical signal equipment 419, and the external form thereof is compliant to PC card standard Type II. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2004063506A Method of processing ferro-dielectric material film 有权
公开(公告)号：JP2004063506A
公开(公告)日：2004-02-26
申请号：JP2002215779
申请日：2002-07-24
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ENBUTSU KOUJI , TOYODA SEIJI , FUJIURA KAZUO , SASAURA MASAHIRO , IMAI KANEYUKI , YAGI IKUTAKE , ABE ATSUSHI , SUGIMOTO NAOTO , KURIHARA TAKASHI
IPC分类号： G02B6/13 , H01L21/302
摘要： PROBLEM TO BE SOLVED: To provide a method of etching more deeply a KTN/KLTN crystal film to easily form a waveguide. SOLUTION: This method is applied to process a crystal film which is expressed by the general expression of KTa 1-x Nb x O 3 (0 ≤ x ≤ 1) or K 1-y Li y Ta 1-x Nb x O 3 (0 ≤ x ≤ 1, 0 ≤ y ≤ 1). This method comprises the steps of providing, on the crystal film, a mask material attained by laminating a resist and a kind or more kinds of metal thin film selected from a group of titanium, zirconium, niob, tantalum, molybdenum, vanazium, tangusten and chromium, and processing the crystal film with the ion beam etching, using the ion of gas of a kind or more kinds of substance selected from a group of nitrogen, argon, oxygen, chlorine, hydrogen chloride and boron trichloride. COPYRIGHT: (C)2004,JPO

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