发明授权
- 专利标题: Digital signal recording/reproducing apparatus and recording method
- 专利标题(中): 数字信号记录/再现装置和记录方法
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申请号: US810070申请日: 1997-03-04
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公开(公告)号: US6134384A公开(公告)日: 2000-10-17
- 发明人: Hiroo Okamoto , Takaharu Noguchi , Hitoaki Owashi
- 申请人: Hiroo Okamoto , Takaharu Noguchi , Hitoaki Owashi
- 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: JPX8-045804 19960304; JPX8-047078 19960305
- 主分类号: G11B20/18
- IPC分类号: G11B20/18 ; H04N5/911
摘要:
An apparatus and method for recording on and reproducing from a magnetic tape a digital signal by rotating heads. A synchronizing signal, a control signal, and an error correction code are added to the digital signal, and the digital signal with those signals added is converted into a block form. At the recording time, a recording signal produced from a recording circuit is recorded on the recording medium by a first head of the rotating heads, and at the same time the recorded signal is reproduced by a second head of the rotating heads. In addition, there are provided a first recording mode in which two error correction codes are added, and a second recording mode in which three error correction codes are added. Thus, the recorded signal can be confirmed by the simultaneous playback made at the recording time so that the reliability in data can be assured.
公开/授权文献
- US5203169A Axle drive apparatus 公开/授权日:1993-04-20