发明名称 |
Audio equipment and control method of audio equipment |
摘要 |
Audio equipment and a method of controlling audio equipment are provided. The equipment comprises a switching power amplifier circuit and a controller controlling a switching frequency of the power amplifier circuit, and the controller varies the switching frequency of the power amplifier circuit in accordance with a receiving frequency in a case of receiving at least a medium-wave broadcast wave.
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申请公布号 |
US2003216132(A1) |
申请公布日期 |
2003.11.20 |
申请号 |
US20030428184 |
申请日期 |
2003.04.30 |
申请人 |
SAWASHI TOKIHIKO;KOBAYASHI TOSHIAKI;KOBAYASHI KOJI |
发明人 |
SAWASHI TOKIHIKO;KOBAYASHI TOSHIAKI;KOBAYASHI KOJI |
分类号 |
H04B15/04;(IPC1-7):H04B1/16 |
主分类号 |
H04B15/04 |
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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