Optical disk recording/playback device with means to recognize,

Details Optical disk recording/playback device with means to recognize, Optical disk recording/playback device with means to recognize,

1997-08-11

1999-06-22

Huber, Paul W.

Dynamic information storage or retrieval

With particular cabinet structure

With mechanism to place disc on a turntable

369 54, 369270, G11B 3302, G11B 390

Patent

active

059149299

ABSTRACT:
The present invention is provided with a cartridge holder for installation of a cartridge which houses an optical disk, and a tray which is located below said cartridge holder and in which an unhoused optical disk is placed, and which can move to-and-fro between a position in which information are recorded and/or played back and a position in which the optical disk is exchanged, a center shaft which rotates by means of a rotating drive means, and a holding mechanism including a turntable which is secured to the shaft and is provided with a magnetic body, an optical disk centering means and a support surface which supports the optical disk; and a clamper which can be brought into contact with and separated from the support surface of said turntable and which maintains in contact with the support surface of the turntable optical disks which do not have hubs. The optical information recording/playback device allows installation of a variety of optical information recording media such as optical disk with or without hubs and optical disks which are housed in a cartridge or unhoused.

REFERENCES:
patent: 4853915 (1989-08-01), Takasago et al.
patent: 5109372 (1992-04-01), Caspers et al.
patent: 5177728 (1993-01-01), Otsubo et al.
patent: 5299185 (1994-03-01), Sakurai et al.
patent: 5315570 (1994-05-01), Miura et al.
patent: 5502702 (1996-03-01), Nakajo
patent: 5559769 (1996-09-01), Ando et al.

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