Optical disk device

Details Optical disk device Optical disk device

2007-01-16

2007-01-16

Hindi, Nabil (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044260, C369S047270

Reexamination Certificate

active

10254715

ABSTRACT:
An optical disk device in which data is written to or reproduced from an optical disk having an area which contains a header section and another area which does not contain a header section. When a track deviation of an optical pickup occurs, it is detected whether or not a signal representing the header section is contained in the return light signal from the optical disk. When a signal representing the header section is contained in the return light signal, it is determined that the optical pickup is located in an area which contains a header section and tracking is controlled through a push-pull method etc. On the other hand, when a signal representing the header section is not contained in the return light signal from the optical pickup, it is determined that the optical pickup is located in an area which does not contain a header section and tracking is controlled through differential phase detection etc.

REFERENCES:
patent: 6118752 (2000-09-01), Miyagawa et al.
patent: 6459664 (2002-10-01), Yamada et al.
patent: 6597642 (2003-07-01), Ijima et al.
patent: 1027036 (1989-01-01), None
patent: 2000-187860 (2000-04-01), None
patent: 2001-1034941 (2001-02-01), None
patent: 2001-093242 (2001-04-01), None
patent: 2002-352448 (2002-12-01), None
patent: 2002-358666 (2002-12-01), None

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