Magnetic recording medium, recording/reproducing apparatus,...

Details Magnetic recording medium, recording/reproducing apparatus,... Magnetic recording medium, recording/reproducing apparatus,...

2008-01-11

2009-12-22

Sniezek, Andrew L (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

C360S016000, C428S848500

Reexamination Certificate

active

07636215

ABSTRACT:
On a magnetic recording medium, data track patterns and servo patterns are formed on one surface and another surface of a disk-shaped substrate by patterns including recording regions and non-recording regions. In the data track patterns on the one surface, the non-recording regions are formed at formation positions on the one surface corresponding to formation positions of recording regions in the data track patterns on the other surface and the recording regions are formed at formation positions on the one surface corresponding to formation positions of non-recording regions in the data track patterns on the other surface, and in the servo patterns on the one surface, the non-recording regions are formed at formation positions on the one surface corresponding to formation positions of recording regions in the servo patterns on the other surface and the recording regions are formed at formation positions on the one surface corresponding to formation positions of non-recording regions in the servo patterns on the other surface.

REFERENCES:
patent: 2006/0012903 (2006-01-01), Asakura et al.
patent: 2006/0012904 (2006-01-01), Naruse et al.
patent: 2006/0014053 (2006-01-01), Asakura et al.
patent: 2006-031855 (2006-02-01), None
patent: 2006-031856 (2006-02-01), None
English language Abstract of JP 2006-031855.
English language Abstract of JP 2006-031856.
U.S. Appl. No. 11/972,645 to Okawa et al., which was filed on Jan. 11, 2008.

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