发明名称 |
Radio communication terminal |
摘要 |
A radio communication terminal has a plurality of matching circuits that optimize the efficiency of a power amplifier for a range of different battery voltages. A first matching circuit optimizes the efficiency of the power amplifier for a battery voltage higher than a predetermined threshold value. A second matching circuit optimizes the efficiency of the power amplifier at a voltage lower than the threshold value. A control section compares a detection result of a battery voltage from a voltage monitor section with the threshold value, and performs switching between the plurality of matching circuits. |
申请公布号 |
US7500117(B2) |
申请公布日期 |
2009.03.03 |
申请号 |
US20050219266 |
申请日期 |
2005.09.02 |
申请人 |
SONY ERICSSON MOBILE COMMUNICATIONS JAPAN, INC. |
发明人 |
MIZUSAWA NISHIKI |
分类号 |
G06F1/00;G06F1/26;G06F1/32;G06F11/30 |
主分类号 |
G06F1/00 |
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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