发明名称 |
Audio processor, input/output processing apparatus, and information processing apparatus |
摘要 |
There is provided an information processing apparatus (100) in which a CPU (10) and an audio processing unit (20) are coupled by a bus. The audio processing unit (20) includes a ring buffer (30) that temporarily retains audio data, and performs an input/output process of the audio data. An interrupt signal generator (26) generates a buffer empty signal, when the audio data is output from a buffer in the ring buffer (30) and the buffer is empty, decimates the buffer empty signal in accordance with a sampling frequency of audio, and then feeds the interrupt signal that survives the decimation to the CPU (10). The CPU (10), upon receiving the buffer empty signal, issues a DMA transfer instruction for writing the audio data into the empty buffer in the ring buffer (30).
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申请公布号 |
EP1903447(A1) |
申请公布日期 |
2008.03.26 |
申请号 |
EP20070016120 |
申请日期 |
2007.08.16 |
申请人 |
SONY COMPUTER ENTERTAINMENT INC. |
发明人 |
HONDA, SHINICHI;TAKAHASHI, YOSHIKAZU;YAMANOUE, KAORU;TOYODA, TAKASHI;SASAKI, NOBUO |
分类号 |
G06F13/24 |
主分类号 |
G06F13/24 |
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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