Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1996-10-07
1998-09-01
Evans, Jefferson
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360113, G11B 533, G11B 555
Patent
active
058019081
ABSTRACT:
A magnetic disk drive that records and reproduces data onto and from a magnetic disk is provided with a rotary actuator arm tilt which has a length such that the variation of the skew angle formed where a line, connecting the center of rotation of rotary actuator, and one end of the rotary actuator crosses the track moving direction of the magnetic disk is a minimum. A composite head unit is provided and composed of a write head and a read head integrated into a single unit which is mounted on the rotary actuator arm, wherein in order to minimize the largest absolute value of the skew angle formed where the disk radius direction crosses the track width direction of the composite magnetic head on a given write track in the range from the innermost write track position to the outermost write track position. The composite magnetic head unit is constructed to meet at least either the condition that the unit is mounted obliquely with respect to a line connecting the center of rotation of the actuator and the composite magnetic head unit or the condition that the write head and the read head are stacked with the write head being shifted from the read head in the track width direction toward the outer circumference or the inner circumference to compensate for a track deviation due to the skew angle.
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Akiyama Junichi
Inoue Tetsuo
Evans Jefferson
Kabushiki Kaisha Toshiba
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