发明名称 |
OUTPUT CONTROL APPARATUS OF MOBILE TERMINAL |
摘要 |
PURPOSE: An output control apparatus of a mobile terminal is provided to perform a stable output control operation with a simply constructed circuit by having a transistor for resistance and switch and performing an output control for a transmission signal. CONSTITUTION: An intermediate amplifier(31) amplifies a signal to be transmitted from a terminal. An attenuator(32) attenuates a signal amplified by the intermediate amplifier(31) as a switching operation of a transistor unit(34) is turned off when the signal(PA_R0) controlling an output of the terminal is OFF. The transistor unit(34) has an impedance lower than that of the attenuator(32), and is operated to be turned on when the signal (PA_R0) controlling an output of the terminal is ON and outputs the signal amplified by the intermediate amplifier(31) to a power amplifier(33). The power amplifier(33) amplifies the signal attenuated by the attenuator(32) or the signal outputted from the transistor unit(34).
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申请公布号 |
KR20020001167(A) |
申请公布日期 |
2002.01.09 |
申请号 |
KR20000035428 |
申请日期 |
2000.06.26 |
申请人 |
LG INFORMATION & COMMUNICATIONS LTD. |
发明人 |
HWANG, IL YEOP |
分类号 |
H04B1/40;(IPC1-7):H04B1/40 |
主分类号 |
H04B1/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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