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    • 13. 发明专利
    • Two-way multiplex communication system
    • 两路多通信通信系统
    • JP2005294994A
    • 2005-10-20
    • JP2004103959
    • 2004-03-31
    • Showa Electric Wire & Cable Co Ltd昭和電線電纜株式会社
    • KATSUKI SHIRO
    • H04B10/00H04B10/27H04B10/272H04J14/00H04J14/02H04B10/20H04B10/24
    • PROBLEM TO BE SOLVED: To decrease the number of used WDM devices in total.
      SOLUTION: The two-way multiplex communication system comprises a first WDM device (WDM device at the station office side) 14b provided in a station office for multiplexing a plurality of optical signals different in wavelength, a second WDM device (WDM device at the subscriber side) 41 provided at a subscriber for demultiplexing a plurality of optical signals different in wavelength, a one-conductor optical transmission line 5 connected between the station office and the subscriber for transmitting the optical signals, and couplers 62a, 62b provided on the way of the optical transmission line for distributing the optical signals. The second WDM device 41 and the couplers 62a, 62b are disposed, e.g., in an on-post closure 6 as a branching connection box installed near the subscriber.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:减少使用的WDM设备的数量。 解决方案:双向多路复用通信系统包括设置在站台中的第一WDM设备(站台侧的WDM设备)14b,用于多路复用波长不同的多个光信号,第二WDM设备(WDM设备 在订户侧)41设置在用户上以解复用多个波长不同的光信号,连接在站局和用户之间的用于发送光信号的单导体光传输线5以及设置在其上的耦合器62a,62b 用于分配光信号的光传输线的方式。 第二WDM装置41和耦合器62a,62b例如设置在作为安装在用户附近的分支接线盒的柱内封闭件6中。 版权所有(C)2006,JPO&NCIPI
    • 14. 发明专利
    • Optical transmission system using wdm
    • 使用WDM的光传输系统
    • JP2005286733A
    • 2005-10-13
    • JP2004098656
    • 2004-03-30
    • Nec Corp日本電気株式会社
    • TAKAGI MAMORU
    • H04J14/00H04B10/00H04B10/03H04J14/02H04B10/24
    • PROBLEM TO BE SOLVED: To provide an optical transmission system using a WDM which plans the reduction of introductory cost and a high investment effect to a user who plans the optical transmission system.
      SOLUTION: The optical transmission system using the WDM to be displayed includes a WDM unit 41 which transmits a plurality of wavelengths to a transmission line 3 for connecting between a plurality of communication entrepreneur offices 1 and a subscriber's premise 2 and separating and relaying the transmission line 3 from the subscriber's premise to the transmission line 3 for every transmission entrepreneur office 1, a first optical terminating device 11 and a second optical terminating device 21 which are connected to the transmission line 3 of the communication entrepreneur 1 side and the subscriber's premise 2 side, a first communication unit 12 and a second communication unit 13 which transfer the communication from the first optical terminating device 11 to a high order network 5, first customer premise wiring 22 and second customer premise wiring 23 which is connected with the second optical terminating device 21 to separate the wavelength, a router 24 connected to the first customer premise wiring 22 and the second customer premise wiring 23, and an information communication terminal 25 connected to the router 24.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种使用WDM的光传输系统,其计划降低导入成本并且对计划光传输系统的用户具有高投资效果。 解决方案:使用要显示的WDM的光传输系统包括WDM单元41,WDM单元41将多个波长发送到传输线3,用于连接多个通信企业家办公室1和用户的场所2以及分离和中继 从用户的前提到传输线路3的每个传输企业家办公室1的传输线路3,连接到通信企业家1侧的传输线路3的第一光学终端设备11和第二光学终端设备21, 第一通信单元12和第二通信单元13,其将通信从第一光学终端设备11传送到高阶网络5,第一客户住宅布线22和第二客户住宅布线23,其与第二客户住宅布线23连接 用于分离波长的光学终端设备21,连接到第一个的路由器24 客户住宅布线22和第二客户住宅布线23以及连接到路由器24的信息通信终端25.版权所有(C)2006,JPO&NCIPI
    • 16. 发明专利
    • Catv system
    • 有线电视系统
    • JP2005236411A
    • 2005-09-02
    • JP2004040277
    • 2004-02-17
    • Maspro Denkoh Corpマスプロ電工株式会社
    • OHARA HISANORI
    • H04N7/10H04B10/00H04B10/272H04J14/00H04J14/02H04N7/22H04N21/61H04N21/647H04B10/24
    • PROBLEM TO BE SOLVED: To provide a CATV system attaining high quality and high-speed communication, using a simple configuration. SOLUTION: In the CATV system adopting the HFC transmission system, a CATV center is provided with wavelength division multiplexers; any of various relaying apparatuses for transmitting an electrical signal is provided with an optical transmitter for converting an uplink signal outputted from a terminal as an electrical signal into an optical signal with a wavelength different from the wavelength of an optical signal transmitted / received by an optical transmitter/receiver and transmitting the resulting optical signal; a closure provided with two wavelength division multiplexers is interposed in an uplink optical transmission line; the one wavelength division multiplexer is interposed in the uplink optical transmission line; and the other wavelength division multiplexer is connected to the plurality of optical transmitters by optical transmission lines, applies wavelength division multiplexing to the optical signal transmitted from the optical transmitter and is connected to the one wavelength division multiplexer, so that an optical signal subjected to wavelength division multiplexing is transmitted between the CATV center and the closure, by using the uplink optical transmission line. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:使用简单的配置来提供实现高质量和高速通信的CATV系统。 解决方案:在采用HFC传输系统的CATV系统中,CATV中心配有波分复用器; 用于发送电信号的各种中继装置中的任一个设置有用于将从终端输出的上行链路信号作为电信号转换成波长不同于由光学信号发送/接收的光信号的波长的波长的光信号的光发送器 发射机/接收机,并发送所得到的光信号; 设置有两个波分复用器的闭合器插入在上行链路光传输线中; 一个波分复用器插入上行光传输线路; 并且另一个波分复用器通过光传输线路连接到多个光发射机,对从光发射机发送的光信号应用波分复用,并连接到一个波分多路复用器,使得经受波长的光信号 通过使用上行链路光传输线,在CATV中心和闭包之间传输分复用。 版权所有(C)2005,JPO&NCIPI
    • 17. 发明专利
    • Catv system
    • 有线电视系统
    • JP2005236410A
    • 2005-09-02
    • JP2004040276
    • 2004-02-17
    • Maspro Denkoh Corpマスプロ電工株式会社
    • OHARA HISANORI
    • H04N7/10H04B10/00H04N7/22H04N21/61H04N21/647H04B10/24
    • PROBLEM TO BE SOLVED: To provide a CATV system attaining high quality and high-speed communication, using a simple configuration.
      SOLUTION: The CATV system adopting the HFC transmission system, includes wavelength division multiplexers provided in a CATV center; an optical transmitter provided in a two-way amplifier and for converting an uplink signal outputted from a terminal as an electrical signal into an optical signal with a wavelength different from the wavelength of an optical signal transmitted / received by an optical transmitter/receiver; and a closure provided with wavelength division multiplexers on a downlink optical transmission line and an uplink optical transmission line or either of them, and an optical signal subjected to wavelength division multiplexing is transmitted between the CATV center and the closure by using the downlink optical transform line and the uplink optical transmission line or either of them via the connection of the optical transmitter, provided in the two-way amplifier to the wavelength division multiplexer provided in the closure via the optical transmission line with each other.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:使用简单的配置来提供实现高质量和高速通信的CATV系统。 解决方案:采用HFC传输系统的CATV系统包括在CATV中心提供的波分复用器; 设置在双向放大器中并用于将从终端输出的上行链路信号作为电信号转换成具有与由光发射机/接收机发送/接收的光信号的波长不同的波长的光信号的光发射机; 以及在下行链路光传输线路和上行光传输线路上提供波分复用器的封闭物,或者其中之一,并且经过波分复用的光信号通过使用下行链路光转换线路在CATV中心和封闭装置之间传输 和上行链路光传输线路,或者通过双向放大器中的光发射机的连接,经由光传输线路设置在封闭装置中的波分复用器彼此之间。 版权所有(C)2005,JPO&NCIPI
    • 19. 发明专利
    • Method for optical communication, and optical transceiver
    • 光通信方法和光收发器
    • JP2005229299A
    • 2005-08-25
    • JP2004035398
    • 2004-02-12
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • KUWANO SHIGERUKINOSHITA TAKESHIIWASHITA KATSU
    • H04J14/08H04B10/00H04B10/524H04B10/556H04B10/80H04B10/24
    • PROBLEM TO BE SOLVED: To realize a method for optical communication and optical transceivers for starting bi-directional communication of a data packet between the optical transceivers.
      SOLUTION: In the method for optical communication for a bi-directional communication system which bi-directionally communicates the data packet transmitted and received between the optical transceivers opposing each other through a single optical fiber transmission path by time division, in advance of the bi-directional communication of the data packet, a connection packet at low speed which has the specific information of each optical transceiver and which is not faster than the transmission speed of the data packet is transmitted and received through the optical fiber transmission path. According to the specific information of the connection packet received by each optical transceiver, one of optical transceivers is set to be a master and the other is set to be slave, and a method for transmission set by the optical transceiver of the master is reported to the optical transceiver of the slave by a setting packet to carry out bi-directional communication by the set method for transmission.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:实现用于在光收发器之间启动数据分组的双向通信的光通信和光收发器的方法。 解决方案:在双向通信系统的光通信方法中,双向通信系统的双向通信是通过时分方式通过单个光纤传输路径在彼此相对的光收发器之间发送和接收的数据分组双向通信的, 通过光纤传输路径发送和接收数据分组的双向通信,具有每个光收发机的特定信息并且不比数据分组的传输速度更快的低速连接分组。 根据每个光收发器接收的连接分组的具体信息,光收发器中的一个被设置为主机,另一个设置为从机,并且由主机的光收发器设置的发送方法报告给 通过设置分组对从机的光收发器进行双向通信,通过设置方法进行传输。 版权所有(C)2005,JPO&NCIPI