Optical disc recording apparatus

Details Optical disc recording apparatus Optical disc recording apparatus

2003-06-26

2010-06-29

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S108000

Reexamination Certificate

active

07746756

ABSTRACT:
An optical pickup is disposed which irradiates a laser beam onto an optical disc where a guide groove having characteristics of thermal interference (heat discoloration) is spirally formed. The optical pickup irradiates the laser beam along the guide groove to conduct one of data recording in which pits indicating a data length are formed, and visible-image formation in which a part of the optical disc is discolored. The laser beam irradiation position is controlled so that the data recording is conducted with starting from the inner peripheral side of the optical disc, and the visible-image formation is conducted with starting from the outer peripheral side of the optical disc.

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patent: A-2001-283470 (2001-12-01), None
JP 09-3060144 (translation) Nov. 1997 Ogino Yoshiaki.
Japanese Patent Office: Notification of Reasons for Refusal, (No. 2007-001268; dated Mar. 13, 2007; 4 pages).
Japanese Patent Office: Notification of Reason for Refusal, (No. 2002-190829; dated Mar. 13, 2007; 6 pgs.).

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