发明名称 |
Transmission output correcting apparatus |
摘要 |
A first control unit reads out both specific frequencies and gain data corresponding to these specific frequencies, which have been stored into a first storage unit, and approximates gain data corresponding to an arbitrary frequency by way of a linear function to calculate the gain data by executing a formula. A D/A converter converts this gain data into a gain control signal, and supplies the gain control signal to a variable gain amplifier. The variable gain amplifier amplifies a transmission signal by a gain defined in response to a transmission frequency based upon the gain control signal.
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申请公布号 |
US6956432(B2) |
申请公布日期 |
2005.10.18 |
申请号 |
US20020152709 |
申请日期 |
2002.05.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KOBAYASHI EISUKE;YAMADA KAZUHIDE;YAMAGUCHI SEIICHI |
分类号 |
H04B1/04;H03G1/04;H03G3/30;(IPC1-7):H01Q11/12;H04B1/06 |
主分类号 |
H04B1/04 |
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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