Magnetic tape and servo writer

Details Magnetic tape and servo writer Magnetic tape and servo writer

2006-03-14

2006-03-14

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

C360S075000

Reexamination Certificate

active

07012774

ABSTRACT:
Disclosed are a magnetic tape capable of suppressing deterioration of the S/N ratio of the data and servo signals and adapted to high density recording design, and a servo writer capable of producing the above magnetic tape. Further, the magnetic tape includes a DC-magnetized DC written region, a servo signal being written onto the DC written region, and a data track. Here, the DC written region and the servo signal are formed to satisfy a relationship −1.5×Tw≦Fd≦1.5×Tw, where Fd denotes a position of an end of the DC written region with respect to an end of the servo signal, and Tw denotes a width of the data track.

REFERENCES:
patent: 5689384 (1997-11-01), Albrecht et al.
patent: 5946159 (1999-08-01), Chliwnyj et al.
patent: 6172833 (2001-01-01), Fry et al.
patent: 8-30942 (1996-02-01), None

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