Optical disk drive and recording and reproducing apparatus...

Details Optical disk drive and recording and reproducing apparatus... Optical disk drive and recording and reproducing apparatus...

2006-05-16

2006-05-16

Davis, David (Department: 2652)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Optical storage medium support

Reexamination Certificate

active

07047544

ABSTRACT:
An optical disk drive having a turntable for carrying an optical disk with a clamping plate made of a magnetic material having a clamping area. A magnet is included for attracting to a turntable side the clamping plate of the optical disk placed on the turntable in a noncontact state. A motor is included for rotating the turntable with the optical disk placed thereon, wherein an attraction force of the magnet attracting the clamping plate is a value by which bending of the optical disk accompanied with the attraction of the clamping plate becomes within a permissible error range. A recording and reproducing apparatus may also incorporate the optical disk drive.

REFERENCES:
patent: 4589105 (1986-05-01), Nemoto et al.
patent: 4736357 (1988-04-01), Uehara et al.
patent: 6219325 (2001-04-01), Sato
patent: 09063167 (1997-03-01), None

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