发明名称 Digital signal recording/ reproducing apparatus and recording method
摘要 An apparatus and method for recording on and reproducing from a magnetic tape (111) a digital signal (41) by rotating heads (100). A synchronizing signal (20), a control signal (21), and an error correction code (23) are added to the digital signal (41), 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 (412) is recorded on the recording medium by a first head (D1) of the rotating heads (100), and at the same time the recorded signal is reproduced by a second head (D2) of the rotating heads (100). In addition, there are provided a first recording mode in which error correction codes are doubly added, and a second recording mode in which the error correction codes are triply 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. <IMAGE>
申请公布号 EP0794531(A3) 申请公布日期 1998.06.17
申请号 EP19970103426 申请日期 1997.03.03
申请人 HITACHI, LTD. 发明人 OKAMOTO, HIROO;NOGUCHI, TAKAHARU;OWASHI, HITOAKI
分类号 G11B20/18 主分类号 G11B20/18
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