发明授权
- 专利标题: Apparatus for reproducing a digital signal
- 专利标题(中): 用于再现数字信号的装置
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申请号: US87093申请日: 1987-08-19
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公开(公告)号: US4875111A公开(公告)日: 1989-10-17
- 发明人: Kentaro Odaka , Tadashi Fukami , Shinya Ozaki
- 申请人: Kentaro Odaka , Tadashi Fukami , Shinya Ozaki
- 申请人地址: JPX Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX61-196020 19860821
- 主分类号: G11B5/09
- IPC分类号: G11B5/09 ; G11B5/008 ; G11B5/53 ; G11B15/18 ; G11B15/467 ; G11B20/10 ; G11B27/00 ; G11B27/30
摘要:
In an apparatus for reproducing a digital signal wherein a signal is read by a plurality of reproducing rotary heads which trace a track with an interval narrower than the interval of tracks formed on a tape, a wrap angle with which a tape is wrapped around the periphery of a rotary drum to which the rotary heads are attached is selected to be less than 360.degree./n with respect to the number n (n is an integer) of rotary heads, the rotary heads are rotated at a speed twice the normal rotational speed of the heads, the demodulated digital signal is stored in a memory corresponding to a frame address and a block address detected from the reproduced digital signal, and then the digital signal stored in the memory is read out therefrom in a predetermined order, whereby an apparatus for correcting the tracking of the tape by the rotary heads can be eliminated.
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