Disk cartridge and disk drive apparatus

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval

Reexamination Certificate

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Details

C720S729000

Reexamination Certificate

active

07085212

ABSTRACT:
A disk cartridge and a disk drive apparatus. The disk cartridge has a reflector to identify the type of disk, and the disk drive apparatus has an optical emitter/detector to irradiate light on the reflector and detect light reflected from the reflector to identify the type of disk. A large number of identification marks can be provided by changing the angle of reflection and the amount of light reflected from the reflector. Accordingly, disks of various capacities, products and formats can be individually identified.

REFERENCES:
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patent: 6091563 (2000-07-01), Thomas et al.
patent: 6175471 (2001-01-01), Meguro
patent: 6297923 (2001-10-01), Burnside et al.
patent: 0 565 281 (1993-03-01), None
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patent: 09213053 (1997-08-01), None
patent: 11-500560 (1999-01-01), None
patent: 11031355 (1999-02-01), None
patent: WO 00/30020 (2000-05-01), None
Patent Abstract of Japanese Publication No. 04061650, with publication date Feb. 27, 1992.
Patent Abstract of Japanese Publication No. 06187719, with publication date Jul. 8, 1994.
Patent Abstract of Japanese Publication No. 61175985, with publication date Aug. 7, 1986.

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