Recording medium having wobbled groove tracks out of phase...

Details Recording medium having wobbled groove tracks out of phase... Recording medium having wobbled groove tracks out of phase...

2005-01-25

2005-01-25

Hindi, Nabil (Department: 2655)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S275300, C369S047270

Reexamination Certificate

active

06847594

ABSTRACT:
A recording medium having wobbled groove tracks out of phase with wobbled land tracks, a servo controlling apparatus using a wobble signal and a method thereof. The recording medium has land tracks and groove tracks, wherein both the land tracks and the groove tracks are wobbled, and wherein the wobbles of either individual groove tracks or individual land tracks are out of phase and the wobbles of the other type of individual tracks are in phase. Thus, it is possible to reliably address whether a groove (or land) track which is currently tracked by the pickup unit is a groove track or a land track, thereby ensuring addressing, and servo control can be effectively performed.

REFERENCES:
patent: 5508991 (1996-04-01), Onigata et al.
patent: 5537373 (1996-07-01), Horikiri
patent: 6069870 (2000-05-01), Maeda et al.
patent: 6088307 (2000-07-01), Fushimi et al.
patent: 6163521 (2000-12-01), Konishi et al.
patent: 6167022 (2000-12-01), Ishida et al.
patent: 6175540 (2001-01-01), Kim
patent: 6181658 (2001-01-01), Van Den Enden et al.
patent: 6208614 (2001-03-01), Kim
patent: 6621772 (2003-09-01), Asano et al.
patent: 1195171 (1998-10-01), None
patent: 0 838 808 (1998-04-01), None
patent: 0 886 275 (1998-12-01), None
patent: 6-96447 (1994-04-01), None
patent: 7-14172 (1995-01-01), None
patent: 9-282699 (1997-10-01), None
patent: 11-25606 (1999-01-01), None
patent: 11-77660 (1999-01-01), None
patent: 11-53772 (1999-02-01), None
patent: WO9813823 (1998-04-01), None
Patent Abstracts of Japan , vol. 1999, No. 0430, Apr. 30, 1999 & JP 11 007660 A, Jan. 12, 1999.
Patent Abstracts of Japan, vol. 1999, No. 0430, Apr. 30, 1999 & JP 11 016175 A, Jan. 2, 1999.

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