Dual gap cross-field magnetic recording head with single gap sig

Details Dual gap cross-field magnetic recording head with single gap sig Dual gap cross-field magnetic recording head with single gap sig

1988-10-07

1990-03-13

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Head

Coil

360121, G11B 517, G11B 5265

Patent

active

049087240

ABSTRACT:
In a recording system utilizing a cross-field head, rather than excite both the field gap and the recording gap with signal and bias excitation as taught in the prior art, the present invention teaches applying bias excitation to both the field gap and the recording gap (as known in the prior art), but applying the signal excitation solely to the recording gap. By following this teaching of the invention, the record zone length is decreased to allow shorter wavelength recording, while the short wavelength recorded signal level is increased by effectively eliminating opposing recorded regions of magnetization in the vertical signal component.

REFERENCES:
patent: 4787002 (1988-11-01), Isozaki

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