发明授权
- 专利标题: Apparatus for recording video signals within recording tracks extending obliquely across a magnetic tape
- 专利标题(中): 用于将记录轨道中的视频信号倾斜地横过磁带的装置
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申请号: US368393申请日: 1995-01-03
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公开(公告)号: US5506688A公开(公告)日: 1996-04-09
- 发明人: Takato Narita , Norio Tanaka
- 申请人: Takato Narita , Norio Tanaka
- 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: JPX4-192773 19920629
- 主分类号: G11B5/008
- IPC分类号: G11B5/008 ; G11B5/02 ; G11B5/09 ; G11B15/18 ; G11B15/467 ; H04N5/7826 ; H04N5/919 ; H04N5/92 ; H04N5/926 ; H04N9/79 ; H04N5/782
摘要:
In an apparatus for recording video signals within recording tracks extending obliquely across a magnetic tape, having a rotary drum with first and second pairs of heads spaced from each other pair by a distance corresponding to one track pitch in a direction parallel to the axis of the rotary drum for recording video signals simultaneously on two recording tracks, while sequentially recording video signals on the magnetic tape within the recording tracks the video signals are recorded on said magnetic tape for longer than at the time of normal recording in such a manner that one of the two recording tracks on which the video signals are recorded by one of the second pair of heads overlaps part of the other recording track which is next to the one recording track and on which the video signals are recorded by one of said first pair of heads, so that by controlling the moving speed of the moving means in such a way so as to be slower than the normal moving speed at the time of normal recording, reductions in the signal to noise ratio can be avoided, and effective long time period recording can be achieved.
公开/授权文献
- US5010946A Die casting cylinder 公开/授权日:1991-04-30
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