Signal reproducing device which offsets the tracking error signa

Details Signal reproducing device which offsets the tracking error signa Signal reproducing device which offsets the tracking error signa

1988-03-16

1990-08-07

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 32, G11B 5584, G11B 15467

Patent

active

049472720

ABSTRACT:
A signal reproducing device for an R-DAT employing offsetting of the tracking error signal in which the digital error rate is significantly reduced. A head assembly traces tracks on which predetermined digital data and tracking pilot signals have been recorded, the head assembly having a larger tracking width than the tracks. The pilot signal is detected from the reproduction output of the head assembly to form a tracking error signal. The number of digital data errors in the reproduction output from the head assembly are counted, and the counted value is compared with predetermined reference values. An offset signal is added to the tracking error signal according to the comparison result. A servo circuit controls the tracking conditions of the head assembly according to the addition result.

REFERENCES:
patent: 4303953 (1981-12-01), Sanderson
patent: 4780774 (1988-10-01), Edakubo et al.

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