Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2007-11-05
2010-11-16
Agustin, Peter Vincent (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
Reexamination Certificate
active
07835241
ABSTRACT:
An optical disc playback apparatus with which collision of a lens and an optical disc is avoided is provided. Processes executed by a microcomputer of the optical disc playback apparatus when a disc is played back include: the step of outputting a signal for performing focus search at a predetermined speed; the step of outputting a signal for reducing search speed when reflection of laser light from a surface of the optical disc is detected; and the step of outputting a signal for indicating disc error when S-shape is not detected and a certain time has elapsed since the detection of the reflection.
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Agustin Peter Vincent
Funai Electric Co. Ltd.
Osha & Liang LLP
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