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    • 8. 发明申请
    • BIDIRECTIONAL WAVELENGTH-DIVISION-MULTIPLEXED PASSIVE OPTICAL NETWORK
    • 双向波长多路复用被动光网络
    • US20090208212A1
    • 2009-08-20
    • US12185408
    • 2008-08-04
    • Kwan-Il LeeSang-Bae Lee
    • Kwan-Il LeeSang-Bae Lee
    • H04J14/02
    • H04J14/0226H04B10/032H04J14/0232H04J14/0246H04J14/025H04J14/0282H04J14/0291H04J14/0295
    • Provided is a bidirectional wavelength division multiplexed passive optical network (WDM-PON) which includes a central office (CO) that transmits and receives multiplexed optical signals, a remote node (RN) that communicates with the CO, receives a multiplexed optical signal to demultiplex, and receives a demultiplexed optical signal to multiplex, an optical network unit (ONU) that transmits and receives demultiplexed optical signals to and from the RN, operational and protective backbone optical fibers that connect the CO to the RN, and operational and protective distribution optical fibers that connect the RN to the ONU. The ONU transmits and receives optical signals through the operational distribution optical fiber and the operational backbone optical fiber, and, where a failure occurs in the operational distribution optical fiber or the operational backbone optical fiber, the ONU transmits and receives optical signals through the protective distribution optical fiber and the protective backbone optical fiber.
    • 提供了一种双向波分复用无源光网络(WDM-PON),其包括发送和接收复用光信号的中心局(CO),与CO通信的远程节点(RN),接收复用的光信号以解复用 并接收解复用的光信号进行多路复用,向RN发送和接收分离的光信号的光网络单元(ONU),将CO连接到RN的操作和保护主干光纤以及操作和保护分布光 将RN连接到ONU的光纤。 ONU通过运营分配光纤和运营骨干光纤发送和接收光信号,并且在运营分配光纤或运营骨干光纤出现故障的情况下,ONU通过保护分布发送和接收光信号 光纤和保护主干光纤。
    • 10. 发明授权
    • Air injection bathtub
    • 空气注射浴缸
    • US08739323B2
    • 2014-06-03
    • US13531691
    • 2012-06-25
    • Sang-Bae Lee
    • Sang-Bae Lee
    • A61H33/06A61H33/02
    • A61H33/02A61H33/025A61H33/6005A61H33/6068A61H2033/002A61H2033/023B01F3/04248B01F2003/04148B01F2003/04184B01F2003/04319
    • An air injection bathtub includes: a body part having a coupling recess formed depressedly on the bottom surface thereof; a plate part adapted to be fit to the coupling recess of the body part and having a connection groove formed depressedly on one side of the underside surface thereof, at least one air passing grooves formed depressedly on the underside surface thereof in a manner as to communicate with the connection groove and to pass the air supplied from the connection groove therethrough, and at least one air injection through-holes formed on the top surface of the plate part to inject the air passing through the air passing grooves into the body part; and a valve part disposed below the connection groove in a manner as to be open and closed through the air pressure supplied from the outside and to supply air to the connection groove.
    • 空气注射浴缸包括:主体部分,其具有在其底表面上凹陷地形成的联接凹部; 适于与主体部分的联接凹部配合并具有在其下表面的一侧上凹陷地形成的连接凹槽的板部分,至少一个通气凹槽,其形成在其下表面上,以便连通 连接槽,并使从连接槽供给的空气通过,以及形成在板部的上表面上的至少一个空气注入通孔,将通过空气通过槽的空气注入到主体部; 以及阀部件,其以从外部供给的空气压力打开和关闭的方式设置在连接槽的下方,并且将空气供给到连接槽。