Dynamic magnetic information storage or retrieval – Head – Plural gaps
Patent
1990-02-26
1992-07-21
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Plural gaps
360 7707, 360 7712, G11B 5265
Patent
active
051328615
ABSTRACT:
A track means defined by magnetic recording media on a substrate, the media along the track means having two levels, one for recording of data, and the other for recording of servo information, wherein recorded magnetic transitions at the second level define the servo information, the transitions arrayed along the track means as groups of converging lines 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 may be "oriented" to read recorded data transitions extending at different angles relative to track length direction.
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Behr Michael I.
Bumb, Jr. Frank C.
Haefliger William W.
Wolff John H.
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