Self-clocking write head

Details Self-clocking write head Self-clocking write head

1980-12-08

1983-04-26

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Recording on or reproducing from an element of diverse utility

Card

235482, G11B 2504, G11B 509

Patent

active

043815243

ABSTRACT:
A time base signal for controlling the recording of binary data is developed by measuring the velocity of a magnetic record. The velocity is measured by determining the time interval required for a mark recorded by a write head to move a predetermined distance to a read head.

REFERENCES:
patent: 3172091 (1965-03-01), Friend
patent: 3272969 (1966-09-01), Cutaia
patent: 3439354 (1969-04-01), Behr et al.
patent: 3914789 (1975-10-01), Coker, Jr. et al.
patent: 4173026 (1979-12-01), Deming
patent: 4264934 (1981-04-01), Mattes
M. G. Wilson, "System for Varying Oscillator Frequency", IBM Technical Disclosure Bulletin, vol. 5, No. 11, Apr. 1963.

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