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    • 5. 发明申请
    • TIME RESOURCE ALLOCATION METHOD OF ULTRA WIDEBAND COMMUNICATION SYSTEM
    • 超宽带通信系统的时间资源分配方法
    • WO2006071045A1
    • 2006-07-06
    • PCT/KR2005/004564
    • 2005-12-27
    • LG ELECTRONICS INC.KIM, Ji HyeKIM, Kun SuKIM, Jong SungSEONG, Hang Dong
    • KIM, Ji HyeKIM, Kun SuKIM, Jong SungSEONG, Hang Dong
    • H04L12/28
    • H04W16/14H04B1/69H04W52/283H04W64/006H04W72/0413H04W72/0446H04W84/18H04W92/18
    • A time resource allocation method of ultra wideband (UWB) communication system is disclosed wherein transmission power is adjusted in a UWB communication system to appropriately allocate time resources of data transmission period. The present invention is such that determination is made as to whether there are time resources for allocation to a second UWB communication device if the second UWB communication device requests allocation of time resources while a plurality of first UWB communication devices are allocated with time resources of data transmission period. As a result of the determination, if time resources are lacking for allocation to the second UWB communication device, the first UWB communication device and the second UWB communication device measure a distance therebetween, and a wireless network region is divided by the measured distance and adjusted transmission power to enable to allocate time resource to the second UWB communication device.
    • 公开了一种超宽带(UWB)通信系统的时间资源分配方法,其中在UWB通信系统中调整发送功率以适当地分配数据传输周期的时间资源。 本发明使得如果第二UWB通信设备在多个第一UWB通信设备被分配有数据的时间资源的情况下请求分配时间资源,则确定是否存在用于分配给第二UWB通信设备的时间资源 传输期。 作为确定的结果,如果缺少分配给第二UWB通信设备的时间资源,则第一UWB通信设备和第二UWB通信设备测量它们之间的距离,并且将无线网络区域除以测量的距离并且被调整 发送功率以能够将时间资源分配给第二UWB通信设备。
    • 6. 发明申请
    • METHOD OF PREPARING SILICON TETRAFLUORIDE BY USING CRYSTALLINE SILICA
    • 使用结晶二氧化硅制备硅四氯化物的方法
    • WO2011136517A2
    • 2011-11-03
    • PCT/KR2011/002981
    • 2011-04-25
    • KCC CORPORATIONKANG, Kyoung HoonCHO, Yeon SeokKIM, Se JongYOO, Young ShinJUN, Moon GueSHIM, Jeong MoLEE, Hyun DongKIM, Ji HyeSONG, Min Wook
    • KANG, Kyoung HoonCHO, Yeon SeokKIM, Se JongYOO, Young ShinJUN, Moon GueSHIM, Jeong MoLEE, Hyun DongKIM, Ji HyeSONG, Min Wook
    • C01B33/107C01B9/08
    • C01B9/08C01B33/10705
    • The present invention relates to a method of preparing silicon tetrafluoride (STF, SiF 4 ) by using crystalline silica (SiO 2 ). More specifically, the present invention relates to a method of preparing silicon tetrafluoride by reacting finely divided crystalline silica and hydrogen fluoride (HF) in the presence of concentrated sulfuric acid in a continuous manner. According to the present invention, silicon tetrafluoride can be economically prepared with high yield from crystalline silica which exists abundantly in the natural world, and the process productivity, workability and controllability can be improved remarkably. In addition, the problem of corrosion in the recycling process by concentrating diluted sulfuric acid can be solved through controlling the ratio between reactants such that no incorporated hydrogen fluoride remains after the reaction, or on the other hand the difficulty in filtering the product by finely divided particles can be avoided through controlling the ratio between reactants such that the crystalline silica reactant is consumed completely. Furthermore, since the used sulfuric acid can be isolated and recycled, the generation of discarded sulfuric acid can be minimized.
    • 本发明涉及通过使用结晶二氧化硅(SiO 2)制备四氟化硅(STF,SiF 4)的方法。 更具体地说,本发明涉及通过在浓硫酸的存在下以连续的方式使细碎的结晶二氧化硅和氟化氢(HF)反应制备四氟化硅的方法。 根据本发明,可以从自然界中大量存在的结晶二氧化硅以高产率经济地制备四氟化硅,并且可以显着提高工艺生产率,可加工性和可控性。 此外,通过浓缩稀硫酸的再循环过程中的腐蚀问题可以通过控制反应物之间的比例来解决,使得在反应后不残留加入的氟化氢,或者另一方面难以通过细分的过滤产物 可以通过控制反应物之间的比例使得结晶二氧化硅反应物完全消耗来避免颗粒。 此外,由于使用的硫酸可以被分离和再循环,所以废弃硫酸的产生可以最小化。