Tracking learning/adjusting method and optical disk device

Details Tracking learning/adjusting method and optical disk device Tracking learning/adjusting method and optical disk device

2007-12-18

2007-12-18

Korzuch, William (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044290, C369S047370, C369S275100

Reexamination Certificate

active

10933947

ABSTRACT:
Even in an optical disk which includes, within a single disk, plural record areas whose track-pitches differ from each other, a tracking parameter is adjusted in a short time and with a high accuracy. At first, an optical pickup for reading information recorded in the optical disk is displaced into a reference track-pitch area which is one of the plural record areas of the optical disk. Moreover, the tracking gain is adjusted so that the tracking servo gain in this area may exhibit a predetermined characteristic. Also, the value thus acquired is recorded into, e.g., a non-volatile memory. After that, based on the tracking parameter learned/adjusted in the reference track-pitch area, the tracking parameter in another track-pitch area is calculated using the track-pitch ratio therebetween. Thereby it becomes possible to adjust the tracking parameter in a short time and with a high accuracy.

REFERENCES:
patent: 4566090 (1986-01-01), Eberly
patent: 4700335 (1987-10-01), Aoi
patent: 5220556 (1993-06-01), Shimizu
patent: 5581539 (1996-12-01), Horie et al.
patent: 5815473 (1998-09-01), Takahashi et al.
patent: 6044049 (2000-03-01), Fujiune et al.
patent: 6853609 (2005-02-01), Kusumoto et al.
patent: 6917571 (2005-07-01), Kusumoto et al.
patent: 2005/0237879 (2005-10-01), Kondo et al.
patent: 04-315826 (1992-11-01), None
patent: 05-266498 (1993-10-01), None
patent: 05-266499 (1993-10-01), None
patent: 06-020291 (1994-01-01), None
patent: 11-149668 (1999-06-01), None
patent: 2001-167452 (2001-06-01), None
patent: 2002-025079 (2002-01-01), None
patent: 2003-123333 (2003-04-01), None

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