Optical disk discriminating apparatus

Details Optical disk discriminating apparatus Optical disk discriminating apparatus

1998-05-27

2000-10-31

Tran, Thang V.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

G11B 390

Patent

active

061413070

ABSTRACT:
The present invention is directed to an optical disk playing system on which plural types of optical disks different in information recording density are selectively mounted and which reproduces information recorded on the mounted optical disk by means of an optical pickup. The type of the mounted optical disk is discriminated in accordance with an output of the optical pickup obtained in a state where the mounted optical disk is rotated.

REFERENCES:
patent: 5745460 (1998-04-01), Tateishi
patent: 5764610 (1998-06-01), Yoshida et al.
patent: 5903531 (1999-05-01), Satoh et al.
patent: 5966357 (1999-10-01), Ryoo
patent: 5974014 (1999-10-01), Tajiri

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