Compensation value setting device and compensation value...

Details Compensation value setting device and compensation value... Compensation value setting device and compensation value...

2008-05-23

2010-12-14

Feild, Joseph H (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044230, C369S044350

Reexamination Certificate

active

07852718

ABSTRACT:
A compensation value setting device selects, based on the first and second index values calculated by the first and second index value calculation sections for each combination of the spherical aberration compensation value and the lens' position compensation value, one combination of the spherical aberration compensation value and the lens' position compensation value and then sets the selected combination for correcting the spherical aberration and the position of the objective lens.

REFERENCES:
patent: 5938791 (1999-08-01), Narahara
patent: 2004/0174781 (2004-09-01), Nishi
patent: 2006/0114793 (2006-06-01), Tonami
patent: 2007/0230295 (2007-10-01), Nishi
patent: 10-21651 (1998-01-01), None

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