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    • 1. 发明授权
    • Mobile wimax signal analyzing method
    • 移动wimax信号分析方法
    • US07881218B2
    • 2011-02-01
    • US12097838
    • 2006-12-19
    • Jin Soup JoungKyung Min HaCheol Jin Lee
    • Jin Soup JoungKyung Min HaCheol Jin Lee
    • G01R31/081
    • H04W24/00H04W28/18H04W80/00
    • Disclosed herein is a method of analyzing portable Internet signals in a measuring instrument. The method includes the steps of (a) acquiring synchronization using a preamble included in a currently received frame, (b) acquiring the access parameters of a DL_MAP included in the frame, and checking the validity of the DL_MAP, (c) if, as a result of the check at step (b), the DL_MAP is determined to be valid, acquiring downlink parameters and burst configuration information by interpreting the DL_MAP, and (e) performing a variety of diagnoses, including evaluation of signal quality for each burst, using the parameters and the burst configuration information.
    • 本文公开了一种在测量仪器中分析便携式因特网信号的方法。 该方法包括以下步骤:(a)使用当前接收到的帧中包含的前导码获取同步,(b)获取包含在该帧中的DL_MAP的访问参数,以及检查DL_MAP的有效性,(c)如果 步骤(b)中的检查结果,DL_MAP被确定为有效,通过解释DL_MAP获取下行链路参数和突发配置信息,以及(e)执行各种诊断,包括评估每个突发的信号质量, 使用参数和突发配置信息。
    • 2. 发明申请
    • Mobile Wimax Signal Analyzing Method
    • 移动Wimax信号分析方法
    • US20080291841A1
    • 2008-11-27
    • US12097838
    • 2006-12-19
    • Jin Soup JoungKyung Min HaCheol Jin Lee
    • Jin Soup JoungKyung Min HaCheol Jin Lee
    • H04L12/26
    • H04W24/00H04W28/18H04W80/00
    • Disclosed herein is a method of analyzing portable Internet signals in a measuring instrument. The method includes the steps of (a) acquiring synchronization using a preamble included in a currently received frame, (b) acquiring the access parameters of a DL_MAP included in the frame, and checking the validity of the DL_MAP, (c) if, as a result of the check at step (b), the DL_MAP is determined to be valid, acquiring downlink parameters and burst configuration information by interpreting the DL_MAP, and (e) performing a variety of diagnoses, including evaluation of signal quality for each burst, using the parameters and the burst configuration information.
    • 本文公开了一种在测量仪器中分析便携式因特网信号的方法。 该方法包括以下步骤:(a)使用当前接收到的帧中包含的前导码获取同步,(b)获取包含在该帧中的DL_MAP的访问参数,以及检查DL_MAP的有效性,(c)如果 步骤(b)中的检查结果,DL_MAP被确定为有效,通过解释DL_MAP获取下行链路参数和突发配置信息,以及(e)执行各种诊断,包括评估每个突发的信号质量, 使用参数和突发配置信息。
    • 6. 发明授权
    • WiMAX system analyzer having RAS emulation function and method of acquiring UL synchronization and testing PSS using the same
    • 具有RAS仿真功能的WiMAX系统分析仪和获取UL同步和使用该同步测试的PSS的方法
    • US07957260B2
    • 2011-06-07
    • US11936987
    • 2007-11-08
    • Jinsoup JoungKyeong Min HaSeung Hwan JiJun Wan ParkCheol Jin Lee
    • Jinsoup JoungKyeong Min HaSeung Hwan JiJun Wan ParkCheol Jin Lee
    • H04J11/00
    • H04W24/00H04W4/18H04W8/26H04W88/08
    • Disclosed herein are a WiMAX system analyzer having an RAS emulation function and a method of acquiring UL synchronization and testing a PSS. The WiMAX system analyzer includes a clock counter, a D/A conversion unit, an A/D conversion unit, an RF processing unit, switching means, a signal generation unit, a signal analysis unit, and control means. The clock counter creates a frame number. The D/A conversion unit converts a DL sub-frame into an analog signal. The A/D conversion unit converts a UL sub-frame signal into digital data. The RF processing unit RF-modulates the DL sub-frame, outputs the modulated DL sub-frame, and demodulating a modulated UL sub-frame. The switching means connects the RF processing unit to the D/A conversion unit or the A/D conversion unit. The signal generation unit assigns a CID, and creating a DL sub-frame. The signal analysis unit decodes the UL sub-frame, and conducts various analyses. The control means performs control so that the switching means connects to the A/D conversion unit.
    • 这里公开了具有RAS仿真功能的WiMAX系统分析器和获取UL同步和测试PSS的方法。 WiMAX系统分析器包括时钟计数器,D / A转换单元,A / D转换单元,RF处理单元,切换装置,信号生成单元,信号分析单元和控制装置。 时钟计数器创建一个帧号。 D / A转换单元将DL子帧转换为模拟信号。 A / D转换单元将UL子帧信号转换为数字数据。 RF处理单元对DL子帧进行RF调制,输出调制的DL子帧和解调调制的UL子帧。 开关装置将RF处理单元连接到D / A转换单元或A / D转换单元。 信号生成单元分配CID并创建DL子帧。 信号分析单元解码UL子帧,进行各种分析。 控制装置执行控制,使得开关装置连接到A / D转换单元。
    • 9. 发明授权
    • Vapor phase synthesis of double-walled carbon nanotubes
    • 双壁碳纳米管的气相合成
    • US07531158B2
    • 2009-05-12
    • US10550500
    • 2004-03-17
    • Cheol Jin Lee
    • Cheol Jin Lee
    • D01C5/00
    • B82Y30/00B82Y40/00C01B32/162C01B2202/04
    • A method of massively synthesizing double-walled carbon nanotubes is provided. In the method, catalyst metal particles having a size of a few nanometers are embedded in nano pores of a support material powder. Then, the support material powder embedding the catalyst metal particles is sintered at a temperature of 700-900° C. Then, the support material powder embedding the catalyst metal particles is loaded in a reactor. Thereafter, high purity double-walled carbon nanotubes are formed massively by vaporizing a carbon source solution at a temperature of 700-1100° C. and supplying the vaporized carbon source gas, or by directly supplying a carbon source gas to the reactor.
    • 提供了大规模合成双壁碳纳米管的方法。 在该方法中,将尺寸为几纳米的催化剂金属颗粒嵌入载体材料粉末的纳米孔中。 然后,将包含催化剂金属颗粒的载体材料粉末在700-900℃的温度下烧结。然后将包埋催化剂金属颗粒的载体材料粉末装入反应器中。 此后,通过在700-1100℃的温度下蒸发碳源溶液并供应蒸发的碳源气体,或者直接向反应器供应碳源气体,大量地形成高纯度双壁碳纳米管。
    • 10. 发明申请
    • WIMAX SYSTEM ANALYZER HAVING RAS EMULATION FUNCTION AND METHOD OF ACQUIRING UL SYNCHRONIZATION AND TESTING PSS USING THE SAME
    • 具有RAS仿真功能的WIMAX系统分析仪及其同步采集UL同步和测试PSS的方法
    • US20080117887A1
    • 2008-05-22
    • US11936987
    • 2007-11-08
    • Jinsoup JoungKyeong Min HaSeung Hwan JiJun Wan ParkCheol Jin Lee
    • Jinsoup JoungKyeong Min HaSeung Hwan JiJun Wan ParkCheol Jin Lee
    • H04Q7/24
    • H04W24/00H04W4/18H04W8/26H04W88/08
    • Disclosed herein are a WiMAX system analyzer having an RAS emulation function and a method of acquiring UL synchronization and testing a PSS. The WiMAX system analyzer includes a clock counter, a D/A conversion unit, an A/D conversion unit, an RF processing unit, switching means, a signal generation unit, a signal analysis unit, and control means. The clock counter creates a frame number. The D/A conversion unit converts a DL sub-frame into an analog signal. The A/D conversion unit converts a UL sub-frame signal into digital data. The RF processing unit RF-modulates the DL sub-frame, outputs the modulated DL sub-frame, and demodulating a modulated UL sub-frame. The switching means connects the RF processing unit to the D/A conversion unit or the A/D conversion unit. The signal generation unit assigns a CID, and creating a DL sub-frame. The signal analysis unit decodes the UL sub-frame, and conducts various analyses. The control means performs control so that the switching means connects to the A/D conversion unit.
    • 这里公开了具有RAS仿真功能的WiMAX系统分析器和获取UL同步和测试PSS的方法。 WiMAX系统分析器包括时钟计数器,D / A转换单元,A / D转换单元,RF处理单元,切换装置,信号生成单元,信号分析单元和控制装置。 时钟计数器创建一个帧号。 D / A转换单元将DL子帧转换为模拟信号。 A / D转换单元将UL子帧信号转换为数字数据。 RF处理单元对DL子帧进行RF调制,输出调制的DL子帧和解调调制的UL子帧。 开关装置将RF处理单元连接到D / A转换单元或A / D转换单元。 信号生成单元分配CID并创建DL子帧。 信号分析单元解码UL子帧,进行各种分析。 控制装置执行控制,使得开关装置连接到A / D转换单元。