Recording device with temperature-dependent write current contro

Details Recording device with temperature-dependent write current contro Recording device with temperature-dependent write current contro

1994-04-04

1995-04-18

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 67, 360 66, G11B 509

Patent

active

054083656

ABSTRACT:
A device for recording an information signal on a magnetic record carrier comprises a recording amplifier (3), a magnetic head (4), and a controller for controlling the write current amplitude in dependence on temperature variations which occur during recording. This is effected by a temperature detector. The magnetic head (4) has a write section (5) for recording an information signal on the magnetic record carrier in a recording mode of the device, and a read section (6) for reading an information signal from the record carrier in a playback mode of the device. The read section (6) is of the magneto-resistive type. The temperature detector is formed by the read section.

REFERENCES:
patent: 3806828 (1974-04-01), Johnson
patent: 4230158 (1981-07-01), de Niet
patent: 4879610 (1989-11-01), Jove et al.
patent: 5101310 (1992-03-01), Brown
patent: 5150073 (1992-09-01), Murari et al.
Jorgensen, "The complete handbook of magnetic recording", 3rd Edition, pp. 295-296.

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