Dynamic magnetic information storage or retrieval – General processing of a digital signal – In specific code or form
Patent
1979-09-17
1982-10-12
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
General processing of a digital signal
In specific code or form
360 41, G11B 509
Patent
active
043542085
ABSTRACT:
Cells of abutting magnetic disk tracks represent binary zeros and ones by having zero and one magnetic polarity transitions. The transitions in each cell for binary bits having the same value occur at the same relative place within the cell. A head positioned to straddle a pair of adjacent tracks simultaneously reads the magnetic transitions. Multiple successive cells along the lengths of the first and second abutting tracks provide only information to enable the head to be positioned to centrally straddle the abutting tracks. Aligned head positioning cells of abutting tracks have differing numbers of the transitions to represent the zero and one values. Even and odd numbered head positioning cells of a track respectively represent the zero and one value. Odd and even numbered head positioning cells of the abutting track respectively represent the one and zero binary values.
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Canney Vincent P.
Compagnie International Pour l'Informatique
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