Hard disk device having normal and low density memory regions

Details Hard disk device having normal and low density memory regions Hard disk device having normal and low density memory regions

2008-04-22

2008-04-22

Sniezek, Andrew L. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

C360S055000

Reexamination Certificate

active

11430011

ABSTRACT:
A hard disk device includes a magnetic disk for storing data, a temperature sensor for detecting an ambient temperature and a controller for controlling operation of the hard disk device. The magnetic disk has a first memory region where data are memorized with a high density when the ambient temperature is higher than a predetermined temperature and a second memory region where data are memorized with a low density when the ambient temperature is lower than the predetermined temperature. The data stored in the second memory region can be transferred to the first memory region when the ambient temperature becomes higher than the predetermined temperature. It is assured that the data are successfully stored in the hard disk device at any temperature without much sacrificing the memory capacity.

REFERENCES:
patent: 2002/0159354 (2002-10-01), Nakabayashi
patent: 2004/0223250 (2004-11-01), Harata et al.
patent: A-S58-147802 (1983-09-01), None
patent: A-2003-168259 (2003-06-01), None
patent: A-2003-257135 (2003-09-01), None

Affiliated with

Also associated with

Rating

Hard disk device having normal and low density memory regions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hard disk device having normal and low density memory regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hard disk device having normal and low density memory regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3925783