Optical disc judgment method and optical disc device

Details Optical disc judgment method and optical disc device Optical disc judgment method and optical disc device

2011-03-22

2011-03-22

Negrón, Daniell L (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S044260, C369S047110, C369S053230

Reexamination Certificate

active

07911907

ABSTRACT:
An optical disk apparatus according to the present invention is an optical disk apparatus for performing at least one of: recording data to a plurality of types of optical disks including a recordable optical disk and a read-only optical disk which are produced according to the BD specifications; and reproducing data from the optical disks. This apparatus includes: a means (506, 507) for irradiating a management area502of an optical disk501with a light beam while not performing tracking control, and generating a track position signal (push-pull TE or phase difference TE) from light which is reflected by the management area502; and a disk determination means for determining, based on the track position signal obtained from the management area502, whether the optical disk501mounted in the optical disk apparatus is a recordable optical disk or a read-only optical disk.

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