Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2005-12-01
2009-11-03
Edun, Muhammad N. (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S112230, C369S044370
Reexamination Certificate
active
07613095
ABSTRACT:
An optical pickup apparatus according to an embodiment of the present invention, comprises an optical unit for projecting a plurality of wavelengths of light, the light including a celadon light, toward a recording medium and receiving the light reflected from the recording medium to thereby detect an information signal and an error signal, and a compatible objective lens for focusing a light projected from the optical unit to thereby form an optical spot on a recording surface of the recording medium and applying at least three light having different wavelength ranges to be compatibly used for both the high-density and the low-density recording mediums. Accordingly, the optical pickup apparatus is capable of compatibly employing a high-density recording medium, which uses a celadon light and is slimmer than a digital versatile disc (DVD), and at least one low-density recording medium.
REFERENCES:
patent: 2003/0095334 (2003-05-01), Kim et al.
patent: 2003/0185133 (2003-10-01), Kaiho et al.
patent: 2004/0120229 (2004-06-01), Pae et al.
patent: 2004/0170106 (2004-09-01), Komma
patent: 2005/0030878 (2005-02-01), Park et al.
patent: 2005/0226122 (2005-10-01), Ooi et al.
patent: 1 096 483 (2001-05-01), None
patent: 1 130 581 (2001-09-01), None
patent: 1 617 424 (2006-01-01), None
patent: 2000-353332 (2000-12-01), None
patent: 1020010039383 (2001-05-01), None
patent: 1020010073413 (2001-08-01), None
patent: 2003-173563 (2003-06-01), None
patent: 2004-087072 (2004-03-01), None
patent: 2004-111012 (2004-04-01), None
patent: 2004-152446 (2004-05-01), None
patent: 2004-281008 (2004-10-01), None
patent: WO2004-095444 (2004-11-01), None
Ahn Young-Man
Kim Bong-Gi
Park Soo-Han
Yoo Jang-Hoon
Edun Muhammad N.
Roylance Abrams Berdo & Goodman L.L.P.
Samsung Electronics Co,. Ltd.
LandOfFree
Optical pickup apparatus 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 pickup apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pickup apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4105728