Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Patent
1976-08-02
1978-03-28
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data in specific format
360 50, G11B 509
Patent
active
040818446
ABSTRACT:
Each data record portion on a record member includes preamble signals for synchronizing recording apparatus with respect to data signals recorded in juxtaposition to the preamble signals. A plurality of beginning of data indicators are interleaved in the synchronizing signals for providing a plurality of independent but coacting beginning of data location pointers. Enhanced apparatus includes means responsive to any one of the location pointers to ensure a reliable start of data indication.
REFERENCES:
patent: 3641526 (1972-02-01), Bailey et al.
patent: 4001883 (1977-01-01), Strout
Devore Ernest William
McDowell Judson Allen
Canney Vincent P.
International Business Machines - Corporation
Somermeyer Herbert F.
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