Optical disc apparatus and optical pickup

Details Optical disc apparatus and optical pickup Optical disc apparatus and optical pickup

2008-08-18

2011-10-11

Hindi, Nabil Z (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S053150

Reexamination Certificate

active

08036078

ABSTRACT:
An optical disc apparatus according to the present invention includes: an optical pickup including an optical system that converges a light beam on an optical disc and a photodetector that detects light reflected from the optical disc; and a fingerprint detector for detecting, based on the output of the photodetector, multiple fingerprint dots on the surface of the optical disc. The fingerprint detector confirms the presence of a fingerprint on the optical disc on sensing the output of the photodetector change according to the pattern of the fingerprint dots.

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Co-pending U.S. Appl. No. 12/301,832 filed Nov. 21, 2008.

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