Optical information processing system using optical...

Details Optical information processing system using optical... Optical information processing system using optical...

2006-11-28

2006-11-28

Patel, Gautam R. (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

Reexamination Certificate

active

07142484

ABSTRACT:
A thickness servo system using optical aberrations is provided. In this servo system, a photodetector detects an aberration amount corresponding to thickness irregularity, and a thickness irregularity correction section operates to minimize the detected aberration amount. The thickness irregularity of a transparent layer can also be calculated from the detected aberration amount.

REFERENCES:
patent: 4497534 (1985-02-01), Sincerbox
patent: 4932731 (1990-06-01), Suzuki et al.
patent: 5050153 (1991-09-01), Lee
patent: 5675564 (1997-10-01), Muramatsu et al.
patent: 5700539 (1997-12-01), Hong
patent: 5708638 (1998-01-01), Braat et al.
patent: 5761178 (1998-06-01), Fukakusa et al.
patent: 5959280 (1999-09-01), Kamatani
patent: 6005834 (1999-12-01), Maeda et al.
patent: 6108139 (2000-08-01), Takahashi
patent: 6134195 (2000-10-01), Kawamura
patent: 6141304 (2000-10-01), Ogasawara
patent: 6192022 (2001-02-01), Hendriks et al.
patent: 6221455 (2001-04-01), Yasuda et al.
patent: 6229600 (2001-05-01), Martynov
patent: 6246648 (2001-06-01), Kuribayashi
patent: 6246656 (2001-06-01), Kawakubo et al.
patent: 6249494 (2001-06-01), Ueki
patent: 6400664 (2002-06-01), Shimano et al.
patent: 6490100 (2002-12-01), Sasano et al.
patent: 6567365 (2003-05-01), Hendriks et al.
patent: 6625103 (2003-09-01), Koike
patent: 6636464 (2003-10-01), Lee et al.
patent: 0 357 323 (1990-03-01), None
patent: 0 953 974 (1999-11-01), None
patent: 9-184975 (1997-07-01), None
patent: 9-251645 (1997-09-01), None
patent: 10-302310 (1998-11-01), None
patent: 10-320792 (1998-12-01), None
patent: 11-110769 (1999-04-01), None
patent: 11-195229 (1999-07-01), None
patent: 2000-20993 (2000-01-01), None
patent: 2000-30299 (2000-01-01), None
patent: 2000-40237 (2000-02-01), None
patent: 2000-076665 (2000-03-01), None
patent: 2000-113494 (2000-04-01), None
patent: 2000-155979 (2000-06-01), None
patent: 2000-171346 (2000-06-01), None
patent: 2000-182254 (2000-06-01), None
patent: 2000-315323 (2000-11-01), None
patent: WO 99/18466 (1999-04-01), None
Kiyoshi Osato, et al., “Progress in Optical Disk Recording with Over 20 GB of Capacity,” IEEE, 2000, pp. 15-17.

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