Disk cartridge which has a recess whose height indicates the typ

Details Disk cartridge which has a recess whose height indicates the typ Disk cartridge which has a recess whose height indicates the typ

1994-05-26

2000-10-24

Davis, David

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

360133, G11B 2303, G11B 370

Patent

active

061377708

ABSTRACT:
An optical disk recording and/or reproducing apparatus employing a disk cartridge having accommodated therein an optical disk not more than 80 mm in diameter as a recording medium, the apparatus including an outer casing having a length not larger than 112 mm, a width not more than 89 mm and a height not more than 31 mm which encompasses a cartridge loading section for loading the disk cartridge, a driving unit for rotationally driving the optical disk accommodated in the disk cartridge, an optical pickup unit and means for transporting the optical pickup unit across inner and outer peripheries of the optical disk driven rotationally by the disk driving unit for recording information signals on or reproducing information signals from a recording surface on the optical disk, a magnetic head unit for generating an external magnetic field based on information signals to be recorded, the magnetic head unit and the optical pickup unit being connected together for movement in unison therewith and arranged facing each other on opposite sides of the optical disk accommodated in the disk cartridge, controlling means for controlling a movement of the magnetic head unit perpendicular to the recording surface of the optical disk as a function of the types of the disks accommodated in the disk cartridge loaded into the apparatus, and a disk loading unit for loading the disk cartridge onto the cartridge loading section and loading the optical disk accommodated in the disk cartridge onto the disk driving unit.

REFERENCES:
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patent: 4712146 (1987-12-01), Moon et al.
patent: 4837758 (1989-06-01), Motoyama et al.
patent: 4876619 (1989-10-01), Suzuki
patent: 4945530 (1990-07-01), Sandell et al.
patent: 4995029 (1991-02-01), Kobayashi et al.
patent: 5122998 (1992-06-01), Mizuno et al.
patent: 5163037 (1992-11-01), Ohmori et al.
patent: 5164925 (1992-11-01), Sato et al.
patent: 5196978 (1993-03-01), Washo et al.
patent: 5202863 (1993-04-01), Miyatake et al.
Patent Abstracts of Japan, vol. 13, No. 73 (P-830), Feb. 20, 1989 & JP-A-63 257 944 (Seiko Epson), Oct. 25, 1988.
Mini Micro Systems, vol. 18, No. 10, Jul. 1985, Boston, USA, pp. 133-141; Carl Warren: "Optical 3 1/2-inch drive adds erasability."
Electronics, vol. 55, No. 26, Dec. 1982, New York, USA, pp. 45-46; John Gosch: "Magneto-optics packs 5-cm disk with 10 megabytes."
EDN Electrical Design News, vol. 35, No. 11, May 24, 1990, Newton, Massachusetts, USA, pp. 95-97; J.D. Mosley: "Mini disk drives strive for acceptance."

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