Skew compensation circuit effectively operated during readout in

Details Skew compensation circuit effectively operated during readout in Skew compensation circuit effectively operated during readout in

1988-09-09

1990-06-05

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Electronically correcting phasing errors between related...

G11B 2020

Patent

active

049318845

ABSTRACT:
In a skew compensation circuit for compensating for a skew among a plurality of readout signal sequences which are read out of a plurality of tracks of a magnetic tape driven in a normal sense and a reverse sense and each of which includes standard data parts and an additional data part partitioned by resynchronization codes, a data number of the additional data part is counted by each compensator unit at every track during readout in the reverse sense. The data numbers of the respective tracks are statistically processed by a resynchronization position detector to determine a position of an initial one of the resynchronization codes that appears in the reverse sense. Each compensator unit compensates for the skew during readout in the reverse sense with reference to the position determined by the resynchronization position detector.

REFERENCES:
patent: 4731676 (1988-03-01), Berlekamp
patent: 4811123 (1989-03-01), Yoshinaka

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