Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2003-12-02
2008-03-11
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S044110, C369S116000
Reexamination Certificate
active
07342867
ABSTRACT:
An object of the present invention is to acquire optimum recording characteristics of an optical recoding medium having multiple data layers, with respect to each of the multiple data layers without increasing learning time required for learning a relation between aberration amount and optimum recording compensation with respect to each of the multiple data layers. The present invention includes a wavefront converter which is driven in such a manner as to reduce the aberration amount detected by an aberration detector. An output controller holds learned data as to the relation between the driving amount of the wavefront converter and the output of a light source, and controls the output of the light source based on the driving amount of the wavefront converter and the learned data.
REFERENCES:
patent: 4283785 (1981-08-01), Miyauchi et al.
patent: 5657307 (1997-08-01), Taneya et al.
patent: 6381074 (2002-04-01), Yoshida
patent: 7226443 (2007-06-01), Campin et al.
patent: 2002/0024736 (2002-02-01), Itou
patent: 2002/0060958 (2002-05-01), Ando et al.
patent: 2000-182254 (2000-06-01), None
Ito Tatsuo
Nishino Seiji
Shiono Teruhiro
Yamamoto Hiroaki
Gupta Parul
Matsushita Electric - Industrial Co., Ltd.
Wenderoth , Lind & Ponack, L.L.P.
Young Wayne
LandOfFree
Optical head device, optical recording device, and optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical head device, optical recording device, and optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical head device, optical recording device, and optical... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3978154