首页> 外国专利> PORTABLE PILOT SIGNAL GENERATOR ADAPTED TO 2ND GENERATION AND 3RD GENERATION MOBILE COMMUNICATION SIMULTANEOSLY

PORTABLE PILOT SIGNAL GENERATOR ADAPTED TO 2ND GENERATION AND 3RD GENERATION MOBILE COMMUNICATION SIMULTANEOSLY

机译:同时适用于第二代和第三代移动通信的便携式飞行员信号发生器

摘要

A portable pilot signal generator adapted simultaneously to the 2nd generation and 3rd generation mobile communication is provided to realize a transmitter which exclusively generates a pilot signal, thereby miniaturizing a device and improving mobility. The first digital to analog converter(102a) converts a digital pilot signal generated in a 2G pilot signal generator(101a) into an analog signal. The first mixer(104a) mixes the converted pilot signal with the first center frequency signal generated from the first partial signal generator(105a). The second digital analog converter(102b) converts a digital pilot signal generated in 3G pilot signal generator(101b) into an analog signal. The second mixer(104b) mixes the converted pilot signal with the second center frequency signal generated from the second partial signal generator(105b). A multiplexer(110) selects/outputs one pilot signal among the pilot signals generated in the first mixer and the second mixer.
机译:提供了一种同时适用于第二代和第三代移动通信的便携式导频信号发生器,以实现专门产生导频信号的发射机,从而使装置小型化并提高了移动性。第一数模转换器(102a)将在2G导频信号发生器(101a)中生成的数字导频信号转换为模拟信号。第一混频器(104a)将转换后的导频信号与从第一局部信号发生器(105a)生成的第一中心频率信号进行混频。第二数字模拟转换器(102b)将在3G导频信号发生器(101b)中生成的数字导频信号转换为模拟信号。第二混频器(104b)将转换后的导频信号与从第二部分信号发生器(105b)生成的第二中心频率信号进行混频。多路复用器(110)在第一混频器和第二混频器中生成的导频信号中选择/输出一个导频信号。

著录项

  • 公开/公告号KR20090027528A

    专利类型

  • 公开/公告日2009-03-17

    原文格式PDF

  • 申请/专利权人 SEOHWA TELECOM CO. LTD.;

    申请/专利号KR20070092811

  • 发明设计人 CHOI YONG MAN;

    申请日2007-09-12

  • 分类号H04B7/26;H04B1/40;

  • 国家 KR

  • 入库时间 2022-08-21 19:13:50

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