发明名称 |
Audio converting device and converting method thereof |
摘要 |
An audio converting device including a digital high-pass filter, an expander, a digital low-pass filter, a delta-sigma modulator, a digital-to-analog converter, an analog low-pass filter and a gain control unit is provided. The digital high-pass filter in this invention can filter out a direct-current component of digital audio data such that the production of noise is avoided when the volume is adjusted by users.
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申请公布号 |
US2002136417(A1) |
申请公布日期 |
2002.09.26 |
申请号 |
US20020103303 |
申请日期 |
2002.03.21 |
申请人 |
KU SHIH-YU;WANG WEN-CHI;CHANG YI-SHU;LEE CHAO-CHENG |
发明人 |
KU SHIH-YU;WANG WEN-CHI;CHANG YI-SHU;LEE CHAO-CHENG |
分类号 |
G10L21/00;H03G3/00;H04B15/00;(IPC1-7):H04B15/00 |
主分类号 |
G10L21/00 |
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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