Magnetic disk drive operating under a low-pressure...

Details Magnetic disk drive operating under a low-pressure... Magnetic disk drive operating under a low-pressure...

2006-07-18

2006-07-18

Wong, K. (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07079348

ABSTRACT:
A magnetic disk drive has an external environment monitoring function. Data is stored on available disk media while the magnetic disk drive is in an unfavorable environment. Under favorable conditions, the data is then moved to a write-restricted area of the media, which was unavailable while the magnetic disk drive was in the unfavorable environment. The magnetic disk drive uses a temperature sensor/atmospheric pressure sensor as a monitoring device and exercises a function, for example, for reading a reference signal stored in a predetermined area of the medium at predefined intervals. When the external environment is favorable for the magnetic disk drive, the present invention can increase the information storage capacity determined appropriate under the current operating conditions.

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