Magnetic recording and or reproducing apparatus and a recording

Details Magnetic recording and or reproducing apparatus and a recording Magnetic recording and or reproducing apparatus and a recording

1993-10-29

1996-01-09

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7704, 369126, 369273, G11B 5596

Patent

active

054833922

ABSTRACT:
The present invention is directed to a magnetic recording and/or reproducing apparatus, in which a reference electrostatic capacity is formed by a wide pattern (23) radially formed over a plurality of recording tracks (22) and a calculation is performed by utilizing this reference electrostatic capacity so as to eliminate the fluctuation of stray capacitance in each of the electrodes (63a) and (63b) of a recording and reproducing head. Thus, the change of stray capacitance occuring due to the drift of temperature, the vibration of interconnection or the like can be eliminated.

REFERENCES:
patent: 4321621 (1982-03-01), Kinjo et al.
patent: 4463388 (1984-07-01), Sugiyama et al.
patent: 4663751 (1987-05-01), Kaku et al.
patent: 4823205 (1989-04-01), Hannon et al.
patent: 4931887 (1990-06-01), Hedge et al.
patent: 4974109 (1990-11-01), Hoshimi et al.
patent: 5003415 (1991-03-01), Freeze
patent: 5103362 (1992-04-01), Belser et al.

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