Dynamic magnetic information storage or retrieval – Recording on or reproducing from an element of diverse utility – Card
Patent
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.
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patent: 4264934 (1981-04-01), Mattes
M. G. Wilson, "System for Varying Oscillator Frequency", IBM Technical Disclosure Bulletin, vol. 5, No. 11, Apr. 1963.
Shay Robert J. E.
Smith Wendell L.
Canney Vincent P.
Coffman E. R.
International Business Machines - Corporation
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