发明授权
- 专利标题: Multitrack PCM reproducing apparatus
- 专利标题(中): 多轨PCM再现装置
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申请号: US553234申请日: 1983-11-18
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公开(公告)号: US4590524A公开(公告)日: 1986-05-20
- 发明人: Hiroo Okamoto , Masaharu Kobayashi , Takashi Hoshino , Masami Nishida
- 申请人: Hiroo Okamoto , Masaharu Kobayashi , Takashi Hoshino , Masami Nishida
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX57-201917 19821119; JPX58-82672 19830613
- 主分类号: G11B5/035
- IPC分类号: G11B5/035 ; G11B20/10 ; G11B15/14 ; G11B5/00
摘要:
A multitrack PCM reproducing apparatus for reproducing PCM signals recorded on a plurality of tracks in a distributed relation, comprises a signal selector circuit sequentially selecting the PCM signals reproduced from the individual tracks, an A/D converter converting the reproduced signals selected by the signal selector circuit into digital signals, a memory circuit storing the digital signals obtained by the A/D conversion, a single digital filter equalizing for each track the waveform of the digital signals stored in the memory circuit, and a signal processor circuit demodulating the PCM signals on the basis of the digital signals processed by the digital filter.