发明授权
US5488520A Data recording and playback apparatus using helical scan system with
magnetic head for recording and playing back pattern signal for
tracking in tracking area within helical track
失效
使用具有磁头的螺旋扫描系统的数据记录和重放装置用于记录和重放模式信号，用于跟踪螺旋轨道内的跟踪区域
- 专利标题： Data recording and playback apparatus using helical scan system with magnetic head for recording and playing back pattern signal for tracking in tracking area within helical track
- 专利标题（中）： 使用具有磁头的螺旋扫描系统的数据记录和重放装置用于记录和重放模式信号，用于跟踪螺旋轨道内的跟踪区域
-
申请号： US70625申请日： 1993-06-02
-
公开(公告)号： US5488520A公开(公告)日： 1996-01-30
- 发明人: Toshiro Aizawa , Shigemitsu Higuchi
- 申请人： Toshiro Aizawa , Shigemitsu Higuchi
- 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： JPX4-141745 19920602
- 主分类号： G11B15/12
- IPC分类号： G11B15/12 ; G11B15/18 ; G11B15/467 ; G11B15/473 ; G11B15/60 ; G11B5/584 ; G11B5/58 ; G11B15/14
摘要：
Recording areas for tracking on which specific servo patterns are recorded are provided preceding data tracks on which data is to be recorded on a recording tape scanned by a helical scan system. The data tracks and recording areas for tracking are recorded at different azimuths. At the time of a playback operation, etc., the specific patterns in the recording areas for tracking are played back by the helical scan system and tracking is performed by using the playback timing.
公开/授权文献
- US06048649A Programmed defect mask with defects smaller than 0.1 .mu.m 公开/授权日：2000-04-11