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公开(公告)号：EP1036392A1
公开(公告)日：2000-09-20
申请号：EP98961832.7
申请日：1998-11-30
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 (600) that functions to align a read/write head (605) with the data tracks written on a recording surface of a tape by reading optical servo tracks (110) that are formed on the back side (101) of the tape (100). 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 (650) are also provided on a surface of the read/write head to enable the optical servo system (607) 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：EP0560859A1
公开(公告)日：1993-09-22
申请号：EP92900644.0
申请日：1991-10-23
CPC分类号： G11B15/67 , G11B15/66 , G11B15/6656 , G11B25/066
摘要： Ce système utilise un mécanisme d'entraînement permettant le balayage hélicoïdal pour cassette de bande magnétique (415-421) et une cartouche de bande magnétique de type 3480 (401) en tant que support de stockage de données. La combinaison de ces deux éléments incompatibles est effectuée grâce à l'utilisation d'une nouvelle interface qui met en oeuvre une "cassette virtuelle de bande magnétique" utilisant une cartouche de bande (401) d'une manière qui rend ce support compatible avec le mécanisme d'entraînement de la bande (415-421). La cassette virtuelle de bande magnétique est réalisée au moyen d'une bobine réceptrice (402) placée par rapport à la cartouche de bande magnétique (401) dans une position adaptée au format d'une cassette de bande magnétique. Un bras court de mise en place de la bande (403) est utilisé pour récupérer le bloc conducteur (311) de la cartouche de bande (401) et mettre en place la bande magnétique (424) sur la bobine réceptrice (402) en suivant un itinéraire court (423) de mise en place de la bande. Une fois la bande (424) fixée à la bobine réceptrice (402), les bras de guidage (415, 419) de la bande à balayage hélicoïdal entraînent la longueur de bande (424) qui est maintenant exposée aux têtes rotatives (416) entre la cartouche de bande (401) et la bobine réceptrice (402).
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公开(公告)号：EP0560859B1
公开(公告)日：1998-01-07
申请号：EP92900644.3
申请日：1991-10-23
IPC分类号： G11B5/027
CPC分类号： G11B15/67 , G11B15/66 , G11B15/6656 , G11B25/066
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公开(公告)号：EP1036392B1
公开(公告)日：2002-08-07
申请号：EP98961832.7
申请日：1998-11-30
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 (600) that functions to align a read/write head (605) with the data tracks written on a recording surface of a tape by reading optical servo tracks (110) that are formed on the back side (101) of the tape (100). 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 (650) are also provided on a surface of the read/write head to enable the optical servo system (607) 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：EP0558633B1
公开(公告)日：1999-09-15
申请号：EP92901106.2
申请日：1991-11-15
IPC分类号： G11B17/22
CPC分类号： G11B27/002 , G11B15/6835 , G11B2220/41 , G11B2220/90
摘要： The automated library system (100) stores and retrieves media cartridges (1202) for an associated plurality of media drives (211-214). Within this system, a virtual robot is implemented to create multiple virtual media libraries within the single automated cartridge library system (100). This capability enables the use of a plurality of types of media within the single automated cartridge library (100) and a corresponding plurality of drive elements (211-214) within the library (100). Thus, each drive element (211-214) has associated therewith a number of object storage locations (201, 202) within the library (100) which contain media of a form and content that matches the drive element (211-214). The automated cartridge library system (100) manages the correspondence between object storage location (201, 202), media type, designated drive element (211-214) in an automated manner such that the single library (100) appears to the user as multiple independent libraries.
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