Tracking control circuit of helical scanning magnetic tape appar

Details Tracking control circuit of helical scanning magnetic tape appar Tracking control circuit of helical scanning magnetic tape appar

1989-08-31

1991-03-26

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 70, 358315, G11B 5588

Patent

active

050034138

ABSTRACT:
In a digital audio magnetic tape reproducing apparatus of herical scanning using two magnetic heads, a first head reproduces a pilot signal of its own track and two pilot signals of both neighboring tracks of its own track by affection of crosstalk, then a difference value between the values of the reproduced signals of the two pilot signals is calculated and is applied to a tracking servo system as a tracking error signal, moreover, the difference value is controlled by a reproduced signals of a pilot signal reproduced by a second magnetic head in the previous reproducing period.

REFERENCES:
patent: 4616353 (1986-10-01), Kaneda et al.
patent: 4658309 (1987-04-01), Yasuda et al.

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