Magnetic disk cartridge and disk drive

Details Magnetic disk cartridge and disk drive Magnetic disk cartridge and disk drive

1982-09-30

1985-09-24

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360133, 360 60, G11B 5012, G11B 2302, G11B 1504, G11B 1904

Patent

active

045436193

ABSTRACT:
A protective cartridge and drive mechanism for use with a stretched surface recording (SSR) disk. The cartridge encloses the disk and includes a rotary locking mechanism which forces the disk into sealing engagement with the cartridge and an erasure preventative control lever which may be manually operated from outside the cartridge. The drive mechanism includes apparatus which releases the cartridge locking mechanism, a sensor which detects the position of the cartridge control lever and operates to prevent the erasure of material recorded on the disk, and two magnetic transducer heads diametrically spaced with respect to the disk which allow random access to recorded information and switching between information recorded at two locations on the disk without the introduction of interference or receiver screen blanking during switching.

REFERENCES:
patent: 4301486 (1981-11-01), Brown et al.
patent: 4464692 (1984-08-01), Yoshida et al.
patent: 4464693 (1984-08-01), Gerfast

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