Apparatus and method for reproducing recorded signal

Details Apparatus and method for reproducing recorded signal Apparatus and method for reproducing recorded signal

2006-05-09

2006-05-09

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

C360S060000, C360S064000, C360S078020, C360S077120, C386S349000, C386S349000

Reexamination Certificate

active

07042665

ABSTRACT:
In an apparatus for reproducing a recorded signal and the like of this invention, two reproducing heads are provided for a single track with their set positions being deviated in the track width direction. A signal selecting unit discriminates a reproducing head whose tracing condition of a target track is appropriate based on an error correction result of a C1 correcting unit and output levels of reproducing heads. A signal obtained by the discriminated reproducing head is supplied to a C2 correcting unit to generate an output signal. Consequently, an off track allowance is increased as compared with a case where the target track is traced with a single reproducing head. At the time of a special reproducing operation or even if a narrow track pitch system is adopted, a recorded signal is reproducible properly.

REFERENCES:
patent: 5321557 (1994-06-01), Shimotashiro et al.
patent: 5751890 (1998-05-01), Yamasaki et al.
patent: 5790746 (1998-08-01), Kashida et al.
patent: 6134061 (2000-10-01), Inoue et al.
patent: 6639747 (2003-10-01), Asakura et al.
patent: 2001/0049804 (2001-12-01), Arai

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