发明名称 |
Digital signal processing apparatus and processing method, and digital signal reproduction/ reception system |
摘要 |
The present invention provides a digital signal processor which receives 1-bit audio signals acquired by the DELTA-sigma modulation and sent over a predetermined transmission line and makes a changeover the audio signal and a mute pattern. The digital signal processor includes an IEEE 1394 interlace (31). The IEEE 1394 interface (31) receives an isochronous packet sent over an IEEE 1394-formatted transmission line (20), extracts music data from the packet, supplies the music data to a DRAM (32), monitors the amount of data stored in the DRAM (32), reads a 1-bit digital signal or generates a mute pattern such as a 9-6 pattern, and makes a changeover between the 1-bit digital signal read from the DRAM (32) and mute pattern while fading them. The digital signal processor further includes a D-A converter (35) to convert the 1-bit digital signal supplied from the IEEE 1394 interface (31) into an analog signal.
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申请公布号 |
US2003176936(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
US20030344197 |
申请日期 |
2003.02.07 |
申请人 |
NAGASAWA HIROSHI;SHIBA KENJI;AOKI TETSUYA |
发明人 |
NAGASAWA HIROSHI;SHIBA KENJI;AOKI TETSUYA |
分类号 |
G10L19/00;G10L19/02;G11B20/10;H04H1/00;H04H5/00;H04H20/88;(IPC1-7):G06F17/00 |
主分类号 |
G10L19/00 |
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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