发明授权
US5388009A PCM signal recording method and apparatus capable of adding index code
to PCM signal recorded at different transmission rates
失效
PCM信号记录方法和装置能够将索引码添加到以不同传输速率记录的PCM信号
- 专利标题： PCM signal recording method and apparatus capable of adding index code to PCM signal recorded at different transmission rates
- 专利标题（中）： PCM信号记录方法和装置能够将索引码添加到以不同传输速率记录的PCM信号
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申请号： US842547申请日： 1992-02-27
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公开(公告)号： US5388009A公开(公告)日： 1995-02-07
- 发明人: Yutaka Nagai , Toshifumi Takeuchi , Takao Arai , Hiroo Okamoto , Takaharu Noguchi , Shigeyuki Itoh
- 申请人： Yutaka Nagai , Toshifumi Takeuchi , Takao Arai , Hiroo Okamoto , Takaharu Noguchi , Shigeyuki Itoh
- 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： JPX3-032612 19910227
- 主分类号： G11B20/10
- IPC分类号： G11B20/10 ; G11B20/12 ; G11B27/28 ; G11B27/30 ; G11B5/02
摘要：
A recording method is provided for a video tape recording apparatus having modes for recording PCM audio signals in a plurality of transmission rates. Index codes for a video signal, which enable a search reproduction and so on, are recorded on a video tape in a constant transmission rate irrespective of the transmission rate of a PCM audio signal to be recorded. Further, an amble pattern at the same frequency as the transmission rate of the PCM audio signal is recorded immediately behind the PCM signal recording area. A reproducing apparatus may be provided only with an index detecting circuit corresponding to the constant transmission rate.
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