MAGNETIC DISK DEVICE

MAGNETIC DISK DEVICE

PURPOSE:To contrive simplification and low cost of a detecting mechanism of cylinder address information by constituting cylinder address information in making a signal pattern to be successively repeated more than a fixed number of times in magnetizing inversion below a given period and other signa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: TOYAMA HISAO
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:PURPOSE:To contrive simplification and low cost of a detecting mechanism of cylinder address information by constituting cylinder address information in making a signal pattern to be successively repeated more than a fixed number of times in magnetizing inversion below a given period and other signal patterns corresponding to '0' or '1'. CONSTITUTION:Servo information written on a magnetic disk 1 is detected by a magnetic head 2, and is sent via an amplifier 3 to a sector lead DC erase part detector 9. A pattern of inverting the magnetization successively >=5 times in a period of