发明名称 |
LOW POWER DIGITAL AUDIO DECODING/PLAYING SYSTEM FOR COMPUTING DEVICES |
摘要 |
A low-power digital audio decoding and playing system and method for computing devices provides a low-cost, low power-consumption, long-battery-life audio playing and decoding system, which may be used to play compressed audio files of various formats. In one aspect, a computer system adapted to play audio files comprises a system CPU (6), memory (4), at least one drive comprising compressed audio data (2), and an audio controller coupled to the system CPU (6), memory (4) and drive (2). The audio controller is adapted to cause the drive (2) to read the compressed audio data from the drive (2), to cause the system CPU (6) to decompress the compressed audio data from the drive (2) into decompressed audio data, to cause the decompressed audio to be stored in the memory (4), and to cause the decompressed audio data to be retrieved from the memory (4) for playing. |
申请公布号 |
WO0245319(A3) |
申请公布日期 |
2003.11.20 |
申请号 |
WO2001US44602 |
申请日期 |
2001.11.29 |
申请人 |
O2 MICRO INTERNATIONAL LIMITED;DU, STERLING;CHAN, REGINIA;DENSHAM, WILLIAM, L.;HER, SHEAU, CHUEN |
发明人 |
DU, STERLING;CHAN, REGINIA;DENSHAM, WILLIAM, L.;HER, SHEAU, CHUEN;LAM, JAMES;IVCHENKO, VOLODYMYR |
分类号 |
G11B20/10;G06F1/32;G06F3/16;G06F9/445;G06F13/38;G06F17/00;G10L19/00;G10L21/00;G11B27/10;H04L |
主分类号 |
G11B20/10 |
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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