Method for laying out zones of a hard disk drive

A method of laying out zones of a hard disk drive using partial response signalling and maximum likelihood (PRML) detection is described. A pulse width is obtained by reading an isolated pulse written on a hard disk of the hard disk drive. A channel bit period is obtained by calculating the ratio be...

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1. Verfasser:	HEUNG-MIN OH
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	A method of laying out zones of a hard disk drive using partial response signalling and maximum likelihood (PRML) detection is described. A pulse width is obtained by reading an isolated pulse written on a hard disk of the hard disk drive. A channel bit period is obtained by calculating the ratio between the channel density according to PRML and the said pulse width. An optimum zone data rate is determined from the channel bit period and recording in memory.