Disk cartridge

Details Disk cartridge Disk cartridge

1993-10-04

1999-01-12

Cao, Allen T.

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

369 13, 360133, G11B 370, G11B 1100, G11B 2303

Patent

active

058598316

ABSTRACT:
A disk cartridge has an overwritable magneto-optical disk rotably mounted therein. The overwritable magneto-optical disk cartridge is usable in compatible type disk drives which also accept conventional, non-overwritable, magneto-optical disks. A magnetic initializing device is provided within the cartridge casing such that a sufficient magnetic field may be generated within the cartridge for effecting overwrite operations. Accordingly, no such magnetic initializing device need be provided in a disk drive and a size, weight and cost of such disk drives may be reduced, while cartridge performance may be reliably improved.

REFERENCES:
patent: 4750064 (1988-06-01), Nemoto et al.
patent: 4908809 (1990-03-01), Tadokoro et al.
patent: 4970618 (1990-11-01), Kato et al.
patent: 5007040 (1991-04-01), Okauchi
patent: 5090010 (1992-02-01), Takahashi
patent: 5206844 (1993-04-01), Ishii
patent: 5274612 (1993-12-01), Sato et al.

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