Error detecting method and device, information storing and...

Details Error detecting method and device, information storing and... Error detecting method and device, information storing and...

2005-12-13

2005-12-13

Tu, Christine T. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Memory testing

C714S798000, C360S053000, C360S031000

Reexamination Certificate

active

06976196

ABSTRACT:
In order to precisely detect latent defects where a data-synchronizing signal is to be stored despite changes in the rotation of an information storage medium, a region data detection is used during a defect detection mode that is longer in the back-and-forth direction than a data-synchronizing signal used during a normal operation mode. The data detection region may be increased by the amount of change in the rotation. Thus, latent defects that may, due to a change in the rotation of the storage medium, come into agreement with the position of a data-synchronizing signal utilized during a normal mode of operation may be reliably detected, maintaining a high precision by taking a change in the rotation of the storage medium into consideration.

REFERENCES:
patent: 6084741 (2000-07-01), Kim
patent: 6092232 (2000-07-01), Nagai et al.
patent: 2001/0010604 (2001-08-01), Esumi
patent: 2004/0027947 (2004-02-01), Asano et al.
patent: 09-145634 (1997-06-01), None

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