Offset setting system and method for seeking control

Details Offset setting system and method for seeking control Offset setting system and method for seeking control

2006-01-10

2006-01-10

Korzuch, William (Department: 2653)

Dynamic information storage or retrieval

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

Control of information signal processing channel

C369S053290, C369S030120, C369S047320, C369S047330

Reexamination Certificate

active

06985415

ABSTRACT:
The invention is an offset setting system for an optical reading/writing apparatus having an optical pickup head reading/writing digital data under a predetermined velocity on an optical storage media. The apparatus sets the offset including a plurality of buffer blocks when the pickup head crosses storage tracks each time on the media and stop on a target storage track. The offset is to steady the pickup head to read/write data on a target block of the target storage track. A buffer time estimating module estimates an average time for the pickup head crossing a buffer block under a predetermined velocity, defining as a buffer time. The buffer blocks setting module records a steady time for the pickup head steadying to read/write data on the target block, and sets the number of the buffer blocks by a predetermined setting process in the offset based on the buffer time and the steady time.

REFERENCES:
patent: 5048001 (1991-09-01), Moriya et al.
patent: 6157599 (2000-12-01), Yamashita et al.
patent: 6298030 (2001-10-01), Maeda
patent: 6678235 (2004-01-01), Watanabe
patent: 2004/0032799 (2004-02-01), Ho

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