Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data clocking
Patent
1992-12-30
1994-11-29
Limanek, Robert
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data clocking
360 46, G11B 509
Patent
active
053695330
ABSTRACT:
In a storage device, such as a magnetic rigid disk drive, data is stored at varying linear densities in the user data storage portions to increase the effective storage capacity of the device as a function of the differences in soft error rate tolerance associated with the various types of data being stored and the ability of non-alphanumeric data to be enhanced by reconstruction or smoothing rather than by an error correction code. A data type signal included with incoming data dictates the recording frequency and a control signal associated with the recorded data block is read when data is addressed to appropriately adjust the clock frequency for reading such addressed stored data.
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Floryance Gregory G.
Ottesen Hal H.
Billion Richard E.
International Business Machines - Corporation
Limanek Robert
Tran Minhloan
Truelson Roy W.
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