Dynamic information storage or retrieval – Storage medium structure – Adjuncts or adapters
Patent
1990-03-19
1992-02-25
Levy, Stuart S.
Dynamic information storage or retrieval
Storage medium structure
Adjuncts or adapters
360133, 360132, 360 60, 206309, 206444, G11B 726, G11B 1504, G11B 2302
Patent
active
050919016
ABSTRACT:
A disc cartridge having a cartridge body accommodating therein a record medium so that the record medium can be recorded and/or reproduced in the accommodated state, a first identifying device movably provided in the cartridge body so as to be switched from the outside so that it can close partly or wholly a rectangular window aperture formed through the cartridge body, and a second identifying device provided in the cartridge body in a half-secured condition so as to close a part of another rectangular window aperture formed through the cartridge body and which cannot be switched from the outside, wherein the first and second identifing devices indicate the kind of optical disc and data necessary for recording on and/or reproducing from the optical disc incorporated.
REFERENCES:
patent: 4785368 (1988-11-01), Tanaka et al.
patent: 4860127 (1989-08-01), Takahashi et al.
patent: 4995029 (1991-02-01), Kobayashi et al.
Arai Shizuo
Yamamoto Hiroshi
Eslinger Lewis H.
Levy Stuart S.
Maioli Jay H.
Sony Corporation
Wells Kenneth B.
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