发明名称 TRANSMITTER AND POWER AMPLIFIER
摘要 PROBLEM TO BE SOLVED: To reduce current consumption of a transmitter in a CDMA type mobile telephone. SOLUTION: In accordance with transmission powers, n (n>2) bias setting conditions of a power amplification means are stored and when sending a desired transmission power, optimal combination of stored gains and bias conditions is selected. Based upon the selected conditions, a variable amplification means 1 and a power amplification means 2 are controlled. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004048797(A) 申请公布日期 2004.02.12
申请号 JP20030320597 申请日期 2003.09.12
申请人 HITACHI LTD 发明人 KATAGISHI MAKOTO;MACHIDA SHIRO
分类号 H03F3/24;H03G3/20;H03G3/30;H04B1/04;(IPC1-7):H03G3/20 主分类号 H03F3/24
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