SYSTEMS USING SUPERIMPOSED, ORTHOGONAL BURIED SERVO SIGNALS
A track means (10) defined by magnetic recording media (11) on a substrate (12), the media along the track means having two levels, one for recording of data (17), and the other for recording of servo information (16), wherein recorded magnetic transitions at the second level define the servo inform...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
05.09.1991
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Abstract | A track means (10) defined by magnetic recording media (11) on a substrate (12), the media along the track means having two levels, one for recording of data (17), and the other for recording of servo information (16), wherein recorded magnetic transitions at the second level define the servo information, the transitions arrayed along the track means as groups of converging lines (24, 28) which extend in crosswise or spanwise relation to multiple tracks. The data is recorded without any wasted magnetic space between tracks (zero guardband) using alternating angles (azimuthal) of magnetic orientation so that they do not interfere with each other when read. The read head cores or gaps (41-44) may be "oriented" to read recorded data transitions extending at different angles relative to track length direction.
Une piste (10) est définie par des supports (11) d'enregistrement magnétique sur un substrat (12). Le support d'enregistrement comprend deux niveaux qui s'étendent le long de la piste, le premier pour enregistrer des données (17), l'autre pour enregistrer des informations d'asservissement (16). Des transitions magnétiques enregistrées sur le deuxième niveau définissent les informations d'asservissement. Les transitions sont agencées le long de la piste comme des groupes de lignes convergentes (24, 28) qui s'étendent transversalement, ou dans le sens d'envergure, par rapport aux pistes multiples. Les données sont enregistrées sans gaspiller aucun espace magnétique entre les pistes (bande de garde nulle) au moyen d'angles alternants (azimutaux) d'orientation magnétique de sorte qu'il n'y ait pas d'interférences lors de la lecture des données. Les tores ou les entrefers (41-44) des têtes de lecture peuvent être "orientés" de manière à lire des transitions de données enregistrées qui forment des angles divers par rapport au sens longitudinal des pistes. |
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AbstractList | A track means (10) defined by magnetic recording media (11) on a substrate (12), the media along the track means having two levels, one for recording of data (17), and the other for recording of servo information (16), wherein recorded magnetic transitions at the second level define the servo information, the transitions arrayed along the track means as groups of converging lines (24, 28) which extend in crosswise or spanwise relation to multiple tracks. The data is recorded without any wasted magnetic space between tracks (zero guardband) using alternating angles (azimuthal) of magnetic orientation so that they do not interfere with each other when read. The read head cores or gaps (41-44) may be "oriented" to read recorded data transitions extending at different angles relative to track length direction.
Une piste (10) est définie par des supports (11) d'enregistrement magnétique sur un substrat (12). Le support d'enregistrement comprend deux niveaux qui s'étendent le long de la piste, le premier pour enregistrer des données (17), l'autre pour enregistrer des informations d'asservissement (16). Des transitions magnétiques enregistrées sur le deuxième niveau définissent les informations d'asservissement. Les transitions sont agencées le long de la piste comme des groupes de lignes convergentes (24, 28) qui s'étendent transversalement, ou dans le sens d'envergure, par rapport aux pistes multiples. Les données sont enregistrées sans gaspiller aucun espace magnétique entre les pistes (bande de garde nulle) au moyen d'angles alternants (azimutaux) d'orientation magnétique de sorte qu'il n'y ait pas d'interférences lors de la lecture des données. Les tores ou les entrefers (41-44) des têtes de lecture peuvent être "orientés" de manière à lire des transitions de données enregistrées qui forment des angles divers par rapport au sens longitudinal des pistes. |
Author | BEHR, MICHAEL, I BUMB, FRANK, C., JR |
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SubjectTerms | INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS |
Title | SYSTEMS USING SUPERIMPOSED, ORTHOGONAL BURIED SERVO SIGNALS |
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