Playback apparatus, method, and recording medium for defect...

Details Playback apparatus, method, and recording medium for defect... Playback apparatus, method, and recording medium for defect...

2007-12-25

2007-12-25

Wellington, Andrea (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S047140, C369S053150

Reexamination Certificate

active

11112485

ABSTRACT:
A playback apparatus for reproducing data recorded on a disk medium by using an optical pickup, the playback apparatus comprising: RF signal generating means, data signal generating means, defect signal generating means, focus error signal generating means, focus servo control means, tracking error signal generating means, tracking servo control means, monitoring means, and defect period processing control means for controlling the focus servo control means and the tracking servo control means, wherein the focus servo control means and the tracking servo control means perform defect period processing when a result of the monitoring by the monitoring means indicates the defect period.

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patent: 6510112 (2003-01-01), Sakamoto et al.

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