Tribit decoder for use in a disc file system

Details Tribit decoder for use in a disc file system Tribit decoder for use in a disc file system

1979-11-20

1982-03-30

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 2110

Patent

active

043227600

ABSTRACT:
A moving head disc file for storage of retrievable informational data with one or more tribit tracks recorded on the disc, the tribit tracks being an integral part of the apparatus, the disc file operating under the supervision of a control system and including a tribit signal decoder whose outputs are logic signals coupled to the system controller, particularly aimed at increasing the number of tracks on a moving head magnetic disc file employing "floppy" or flexible discs.

REFERENCES:
patent: 3534344 (1970-10-01), Santana
patent: 3691543 (1972-09-01), Mueller
patent: 4085427 (1978-04-01), Dunn
patent: 4092682 (1978-05-01), Andrews, Jr. et al.
patent: 4101942 (1978-07-01), Jacques
IBM Tech. Disc. Bull., J. Lewkowicz et al., Tri-Bit Servo Detection, vol. 19, No. 3, Aug. 1976, pp. 810-813.

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