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    • 8. 发明申请
    • Method and apparatus for fabricating optical fiber preform using double torch in mcvd
    • 在mcvd中使用双炬制造光纤预制棒的方法和装置
    • US20050000252A1
    • 2005-01-06
    • US10497093
    • 2003-02-26
    • Chan-Joo LeeSoo-Il SonJi-Sang Park
    • Chan-Joo LeeSoo-Il SonJi-Sang Park
    • C03B37/018
    • C03B37/01853C03B37/01815C03B2201/04C03B2201/075Y02P40/57
    • Disclosed is a method for fabricating an optical fiber preform using a double torch in MCVD, which includes a first process of heating a quartz tube (10) at a temperature lower than a sintering temperature by using a first torch (21) with putting reaction gas, oxygen gas and dehydration gas into the tube so that soot particles are generated and deposited, and heating the tube to a predetermined temperature by using a second torch (22) spaced apart from the first torch after the first torch (21) passes so that moisture in the soot particles is removed; and a second process of conducting dehydration for removing moisture in the soot particles by use of the first torch (21) again, and heating the tube above a sintering temperature by using the second torch (22) so that the soot particles free from moisture are vitrified.
    • 公开了一种使用MCVD中的双炬制造光纤预制件的方法,该方法包括通过使用第一炬(21)将石英管(10)加热至低于烧结温度的第一工序, ,氧气和脱水气体进入管中,从而产生并沉积烟灰颗粒,并且通过在第一焊炬(21)通过之后使用与第一炬间隔开的第二炬(22)将管加热到预定温度,使得 除去烟灰颗粒中的水分; 以及再次通过使用第一炬(21)进行脱水以除去烟灰颗粒中的水分的第二过程,并且通过使用第二炬(22)将管加热到高于烧结温度,使得没有水分的烟灰颗粒是 玻璃化
    • 9. 发明授权
    • Apparatus and method for path finding in multimodes
    • 多模路径寻找装置及方法
    • US08810389B2
    • 2014-08-19
    • US13562365
    • 2012-07-31
    • Ji Sang ParkYoung-Jae LimSeung-Joon KwonWon-Geun ChoiSung-Woong Shin
    • Ji Sang ParkYoung-Jae LimSeung-Joon KwonWon-Geun ChoiSung-Woong Shin
    • G08B1/08
    • G01C21/3438
    • Disclosed are an apparatus and a method for path finding in multimodes. The apparatus for path finding in multimodes includes: a location-tracking unit that tracks current locations of a plurality of terminals to generate a plurality of pieces of location information; a path-finding unit that receives a path-finding request for specific destinations common to the plurality of terminals from the plurality of terminals to find paths to the specific destinations from the location of each terminal at the time of the path-finding request and generate the plurality of pieces of path information; and a sharing server that transmits the plurality of pieces of path information and the location information of the plurality of terminals on the found paths to the plurality of terminals.
    • 公开了一种用于多模式中路径寻找的装置和方法。 用于多模式中的路径寻找的装置包括:跟踪多个终端的当前位置以产生多个位置信息的位置跟踪单元; 路径查找单元,从所述多个终端接收对于所述多个终端共同的特定目的地的路径查找请求,以在所述路径查找请求时从每个终端的位置找到到所述特定目的地的路径,并生成 多条路径信息; 以及共享服务器,其将所发现的路径中的多条路径信息和所述多个终端的位置信息发送到所述多个终端。