Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1992-12-11
1995-04-18
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 548
Patent
active
054083729
ABSTRACT:
Micro-stiffening controls resonance in manufactured devices by reducing the amplitude of resonant vibration due to specific system dependent resonant frequencies. One specific use of the present invention relates to magnetic recording head suspensions wherein the reduction in amplitude, or damping, of detrimental resonant frequencies is achieved by micro-stiffening of specific areas of the suspension. By micro-stiffening the metal of the magnetic head suspension the amplitude of resonant oscillations is reduced at its origin. Thus, resonant oscillations no longer propagate along the entire length of the suspension. The magnetic head does not modulate significantly, resulting in alleviation of the detrimental effects of resonant oscillation on magnetic recording including cross-track error and head to disk spacing modulations.
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Evans Jefferson
Heinz A. J.
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