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公开(公告)号：US06549363B2
公开(公告)日：2003-04-15
申请号：US10116403
申请日：2002-04-04
IPC分类号： G11B555
CPC分类号： G11B27/107 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/602 , G11B20/00086 , G11B20/0021 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.
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公开(公告)号：US06480351B2
公开(公告)日：2002-11-12
申请号：US09775893
申请日：2001-02-05
IPC分类号： G11B5584
CPC分类号： G11B27/107 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/602 , G11B20/00086 , G11B20/0021 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.
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公开(公告)号：US6084740A
公开(公告)日：2000-07-04
申请号：US980723
申请日：1997-12-01
IPC分类号： G11B5/55 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/60 , G11B20/00 , G11B21/08 , G11B21/10 , G11B27/10 , G11B27/26 , G11B27/36
CPC分类号： G11B27/107 , G11B15/08 , G11B15/602 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B20/00086 , G11B20/0021 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.
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公开(公告)号：US06236529B1
公开(公告)日：2001-05-22
申请号：US09577017
申请日：2000-05-22
IPC分类号： G11B5584
CPC分类号： G11B27/107 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/602 , G11B20/00086 , G11B20/0021 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.
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