Magnetic head compensator

Details Magnetic head compensator Magnetic head compensator

1992-03-03

1995-09-05

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

360 46, 360 61, G11B 5035, G11B 509, G11B 1512

Patent

active

054484235

ABSTRACT:
A magnetic head having a fixed gap length (g.sub.n) can be compensated to simulate a head with a larger gap length. This magnetic head is adapted to read alternate magnetic media recorded with at least a selected one (x) of a plurality of wavelengths, to produce a head signal. A compensator has a transfer circuit and a disabling device. The transfer circuit is coupled to and driven by the magnetic head to produce a compensated signal that is a function of x, for simulating another gap length (g.sub.1) different from the fixed gap length. The disabling device is coupled to the transfer circuit for selectively preventing simulation of a different gap length.

REFERENCES:
patent: 4479152 (1984-10-01), Chi
patent: 4564869 (1986-01-01), Baumeister
patent: 4656533 (1987-04-01), Sakai et al.
Philips Res. Rep. 8, 148-157, Studies on Magnetic Recording, by W. K. Westmijze Mar., 1953.

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