Disc cartridge and recording/reproducing apparatus discriminatin

Details Disc cartridge and recording/reproducing apparatus discriminatin Disc cartridge and recording/reproducing apparatus discriminatin

1991-06-14

1992-11-10

Shepperd, John W.

Dynamic information storage or retrieval

With particular cabinet structure

Slotted for edgewise insertion of storage disc

369291, 360133, 360 9906, G11B 3302, G11B 2303, G11B 584, G11B 726

Patent

active

051630370

ABSTRACT:
A disc cartridge made up of a cartridge housing and a disc-shaped recording medium, such as an optical disc or a magneto-optical disc, accommodated in the cartridge housing, is disclosed. The cartridge housing of the disc cartridge is provided with a recording/reproducing aperture for exposing a part of the disc-shaped recording medium to the outside along the radius of the disc, and with a shutter member for opening or closing the aperture. Within a shutter opening actuating recess formed in the cartridge housing, a discriminating member associated with the type of the disc-shaped recording medium accommodated in the cartridge housing is provided for closing at least a part of the recess to prevent insertion of the disc cartridge into a recording and/or reproducing apparatus which is not suited to the type of the disc-shaped recording medium of the disc cartridge.

REFERENCES:
patent: 4680662 (1987-07-01), Fukushima et al.
patent: 4731776 (1988-03-01), Ishii et al.
patent: 4814924 (1989-03-01), Ozeki
patent: 4837758 (1989-06-01), Motoyama et al.
patent: 4858050 (1989-08-01), Ashe et al.

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