Minor bit reduction on a magnetic head

Details Minor bit reduction on a magnetic head Minor bit reduction on a magnetic head

1977-03-28

1979-04-10

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Gap spacer

360121, G11B 525, G11B 527

Patent

active

041492048

ABSTRACT:
A magnetic head assembly for cooperating with a relatively moving medium, on which servo information and data information is recorded, and for reading and/or writing on said medium and for erasing said medium is fabricated so that the effect of pickup interference or unwanted signals during playback is reduced. The magnetic head assembly incorporates a geometry which shifts the signal envelope of the interfering signal so that it is in phase with the signal envelope of the desired signal. The preferred geometry is to dimension the head core so that the distance between two gaps or between a single gap and the edge of the core is equal to the distance between the servo tracks on said medium. Additionally, the gap of the head has a gap null occurring at the frequency of the interfering signal.

REFERENCES:
patent: 3049698 (1962-08-01), Thompson et al.
patent: 3964094 (1976-06-01), Hart

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