Disk writing/reproducing apparatus and method

Details Disk writing/reproducing apparatus and method Disk writing/reproducing apparatus and method

2007-07-24

2007-07-24

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

C360S031000, C360S039000, C360S051000

Reexamination Certificate

active

11302379

ABSTRACT:
A disk writing apparatus includes: a temperature sensor sensing an ambient temperature of a disk; a sync mark generator generating a sync mark having a pattern when a writing temperature indicating an ambient temperature at which data is written on the disk is sensed, wherein the pattern of the sync mark corresponds to the sensed writing temperature; a writing controller outputting the writing temperature sensed by the temperature sensor to the sync mark generator; a multiplexer adding the sync mark generated by the sync mark generator to the data; and a writing unit writing the data to which the sync mark is added on the disk. Accordingly, error rates when data is written and when data is reproduced can be improved by optimally compensating for the disk writing temperature and the disk reproducing temperature using parameters of devices of an hard disk drive.

REFERENCES:
patent: 5534695 (1996-07-01), Miyoshi et al.
patent: 6124998 (2000-09-01), Kanegae
patent: 6697958 (2004-02-01), Yada et al.
patent: 2005/0073761 (2005-04-01), Aida et al.

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