Apparatus for reading a record carrier

Details Apparatus for reading a record carrier Apparatus for reading a record carrier

1982-12-23

1985-09-17

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 558

Patent

active

045424250

ABSTRACT:
The invention relates to apparatus for reading a record carrier on which digital information and tracking signals of comparatively low frequency have been recorded. The apparatus comprises a correction circuit to which the regenerated digital signal is applied, which correction circuit has a transfer characteristic which at least within the frequency band of the tracking signals corresponds to the transfer characteristic of the chain comprising the recording element, the record carrier and the read element. The correction signal supplied by the correction circuit is subtracted from the signal that is read and the tracking signals are derived from the signal thus obtained. In this way cross-talk components produced in the tracking signals by the digital signal are compensated for.

REFERENCES:
patent: 4464714 (1984-08-01), Huijser et al.

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