Method for setting recording power, multilayer optical...

Details Method for setting recording power, multilayer optical... Method for setting recording power, multilayer optical...

2008-07-11

2010-12-14

Edun, Muhammad N (Department: 2627)

Dynamic information storage or retrieval

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

Mechanism control by the control signal

C369S047500, C369S059110, C369S116000

Reexamination Certificate

active

07852721

ABSTRACT:
A method for setting recording power of recording light, capable of an appropriate setting for a multilayer optical recording medium. The recording power of the recording light for an information recording layer of the multilayer optical recording medium to be irradiated with, is set by: evaluating an information recording layer to be evaluated for recording power when all the information recording layer(s) lying closer to a light incident surface than the information recording layer to be evaluated does is/are in a low transmittance state; evaluating the information recording layer to be evaluated for recording power when all the information recording layer(s) lying closer to the light incident surface than the information recording layer to be evaluated does is/are in a high transmittance state; and determining ground information for setting recording power, based on these values of the recording power.

REFERENCES:
patent: 7151728 (2006-12-01), Shoji et al.
patent: 7408860 (2008-08-01), Miura et al.
patent: 7781146 (2010-08-01), Kakiuchi et al.
Mishima et al. “150 GB, 6-layer Write Once Disc for Blu-Ray Disc System”, Proc of SPIE 6282 62820I:1-11 (2006).

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