Method of magnetic recording

Details Method of magnetic recording Method of magnetic recording

1985-08-05

1988-01-12

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

360 351, 360 101, 358314, 358313, H04N 578, H04N 9491

Patent

active

047195223

ABSTRACT:
In a magnetic recording method in which, for the purpose of tracking, a signal having a predetermined frequency is extracted from a reproduced FM recording signal recorded on a magnetic recording medium, and the magnetic head is brought to a position where the amplitude of the signal of predetermined frequency becomes substantially maxim; an FM recording signal recorded on a track of the recording medium is reproduced immediately after the recording, when dropout is detected in the recorded signal, a signal having a frequency other than the predetermined frequency is recorded on the same track in a relation superposed on the recorded signal, and the same recording signal as that recorded already on the dropout-including track is recorded on another track which may be the next adjacent track again.

REFERENCES:
patent: 3264623 (1966-08-01), Gabor
patent: 3721773 (1973-03-01), Kluge
patent: 3761903 (1973-09-01), Bird, Jr. et al
patent: 4145758 (1979-03-01), Drexler et al.
patent: 4308612 (1981-12-01), Miyauchi et al.
patent: 4316223 (1982-02-01), Baldwin et al.
patent: 4494155 (1985-01-01), Veillard

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