Optical storage device, recording method of optical storage...

Details Optical storage device, recording method of optical storage... Optical storage device, recording method of optical storage...

2005-03-21

2009-06-16

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

C369S047100, C369S116000, C369S124120, C369S275200, C369S044320

Reexamination Certificate

active

07548495

ABSTRACT:
A write retry processing unit repeats a write retry operation of a write and a verify, while performing a setting change of a focus offset for recording a data on an optical storage medium in case a verify error occurs in executing the write and a verify try fails. A learning processing unit retains a sum total of the number of adding times of the successful focus offset and the number of subtracting times of the successful retry offset as a learning result at the successful time of the write retry, and a write condition changing unit changes the focus offset setting value of the default so as to be drawn near to the latest focus offset which succeeds in the retry when the absolute value of the learning result retained in the learning processing unit is equal to or more than a threshold value.

REFERENCES:
patent: 2004/0218480 (2004-11-01), Ichikawa et al.
patent: 2001-222381 (2001-08-01), None

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