Near-field gap pull-in method and optical disc apparatus...

Details Near-field gap pull-in method and optical disc apparatus... Near-field gap pull-in method and optical disc apparatus...

2011-06-07

2011-06-07

Psitos, Aristotelis (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053230, C369S053280

Reexamination Certificate

active

07957233

ABSTRACT:
A gap pull-in method and an optical disc apparatus. Whether light condensed on a disc as an actuator ascends is near-field light is determined using a gap error signal. The range of an actuator driving voltage value during a section where the decrease rate of the gap error signal is constant is obtained when it is determined that the light condensed on the disc is near-field light. Gap pull-in is performed on the disc during a section where the actuator driving voltage value is within the obtained range.

REFERENCES:
patent: 7394734 (2008-07-01), Ishimoto
patent: 7613082 (2009-11-01), Ishimoto et al.
patent: 7755986 (2010-07-01), Ishimoto
patent: 2001/0021145 (2001-09-01), Ichimura et al.
patent: 2005/0190666 (2005-09-01), Ishimoto
patent: 2006/0280063 (2006-12-01), Ishimoto
patent: 2008/0062854 (2008-03-01), Nakaoki et al.
patent: WO 2007/114567 (2007-10-01), None
International Search Report of PCT International Application No. PCT/KR2008/003714 on Aug. 28, 2008.

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