Optical disk reproducing apparatus with a disk identifying...

Details Optical disk reproducing apparatus with a disk identifying... Optical disk reproducing apparatus with a disk identifying...

2007-03-22

2010-10-26

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Control of information signal processing channel

C369S047190, C369S053310

Reexamination Certificate

active

07821888

ABSTRACT:
An optical disk reproducing apparatus has a circuit for detecting a difference in modulation scheme between two types of optical disks in a reproduction signal and a circuit for determining the modulation schemes of the disks on the basis of the difference. Thus the apparatus can reproduce the two optical disks with use of the circuit which determines the modulation schemes of the disks to be reproduced.

REFERENCES:
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patent: 6483787 (2002-11-01), Sugasawa et al.
patent: 6775217 (2004-08-01), Kato et al.
patent: 2002/0145962 (2002-10-01), Nishio et al.
patent: 2005/0141385 (2005-06-01), Yamakawa et al.
patent: 2007/0086284 (2007-04-01), Kawakami et al.
patent: 5-101402 (1993-04-01), None
patent: 2004-213863 (2004-07-01), None

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