Information recording medium, recording/reproducing...

Details Information recording medium, recording/reproducing... Information recording medium, recording/reproducing...

2011-01-04

2011-01-04

Negrón, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

C360S077080, C360S135000

Reexamination Certificate

active

07864469

ABSTRACT:
Data track patterns and servo patterns are formed on an information recording medium by concave/convex patterns divided into ring-shaped regions that are concentric with the data track patterns. In the servo patterns, a unit convex length and a unit concave length along the direction of rotation increase in each ring-shaped region from an inside to an outside of the ring-shaped region in proportion to the distance from the center of the data track patterns and a value produced by dividing an average unit convex (or concave) length inside each ring-shaped region by a distance from the center to the ring-shaped region decreases toward the outer periphery of the medium. The ring-shaped regions include plural first regions between an innermost region and an outermost region. Respective lengths along a radial direction of the first regions increase toward an outer periphery of the medium.

REFERENCES:
patent: 4016603 (1977-04-01), Ottesen
patent: 6014296 (2000-01-01), Ichihara et al.
patent: 6139936 (2000-10-01), Weiss
patent: 6154330 (2000-11-01), Nakagawa
patent: 6324032 (2001-11-01), Ohtsuka et al.
patent: 6421195 (2002-07-01), Rubin et al.
patent: 6563673 (2003-05-01), Mundt et al.
patent: 7193796 (2007-03-01), Yasunaga
patent: 7296514 (2007-11-01), Fujita et al.
patent: 7362528 (2008-04-01), Moriya et al.
patent: 7403355 (2008-07-01), Soeno et al.
patent: 2005/0233176 (2005-10-01), Takai et al.
patent: 2006/0044687 (2006-03-01), Soeno et al.
patent: 2006/0066975 (2006-03-01), Soeno et al.
patent: 2006/0077880 (2006-04-01), Moriya et al.
patent: 3-130968 (1991-06-01), None
patent: 7-220404 (1995-08-01), None
patent: 9-097419 (1997-04-01), None
patent: 2000-020945 (2000-01-01), None
patent: 2000-222725 (2000-08-01), None
patent: 2002-359138 (2002-12-01), None
patent: 2003-178431 (2003-06-01), None
patent: 2003-228927 (2003-08-01), None
patent: 2004-171658 (2004-06-01), None
patent: 2004-342226 (2004-12-01), None
patent: 2006-120299 (2006-05-01), None
patent: 2006-318581 (2006-11-01), None
English language Abstract of JP 9-097419 A.
English language Abstract of JP 3-130968 A.
English language Abstract of JP 2006-120299 A.
English language Abstract of JP 2000-020945 A.
English language Abstract of JP 2006-318581 A.
English language Abstract of JP 2003-228927 A.
English language Abstract of JP 2002-359138 A.
English language Abstract of JP 2003-178431 A.
English language Abstract of JP 2004-171658 A.
English language Abstract of JP 2000-222725 A.
English language Abstract of JP 2004-342226 A.
English language Abstract of JP 7-220404 A.

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