Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2006-08-22
2006-08-22
Korzuch, William (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S053190, C369S053280
Reexamination Certificate
active
07095703
ABSTRACT:
A recording apparatus to record a mark on a recording medium includes an aberration detecting part and an optical power controller. The aberration detecting part detects an aberration signal corresponding to the amount of an aberration contained in a light beam radiated onto a recording surface of the recording medium by using an optical pickup system which includes a light source and an objective lens. The light source emits a light beam having a power to record the mark on the recording medium. The objective lens condenses the light beam to focus the light beam as an optical spot on the recording surface of the recording medium. The optical power controller controls the power output from the light source according to the detected aberration signal, so as to have the light source output an optical power to record the mark, in which a deformation due to the aberration is compensated for, on the recording medium. Accordingly, even though the aberration occurs, a proper mark in which the deformation due to the aberration is compensated for can be recorded by increasing the recording power of the light source in proportion to the amount of the aberration to compensate for the aberration. As a result, the mark showing a good signal characteristic can be recorded on the recording medium without an additional aberration compensating device.
REFERENCES:
patent: 5546372 (1996-08-01), Ohsawa et al.
patent: 5621717 (1997-04-01), Finkelstein et al.
patent: 6473378 (2002-10-01), Sato et al.
patent: 6560178 (2003-05-01), Lee et al.
patent: 2002/0105878 (2002-08-01), Ogata et al.
patent: 2002/0176331 (2002-11-01), Ariyoshi et al.
patent: 2003/0075669 (2003-04-01), Tadaki
U.S. Appl. No. 09/984,886, filed Oct. 31, 2001, Kim et al.
U.S. Appl. No. 09/986,454, filed Nov. 8, 2001, Ma et al.
Hurst, et al. “Optical Data Storage 2001.” Proceedings of SPIE. vol. 4342, Apr. 22-25, 2001, pp. 457-462.
Kim Seong-sue
Park In-sik
Shin Dong-ho
Yoon Du-seop
Goma Tawfik
Korzuch William
Stein, McEwen & Bui LLP
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