Optical storage medium enabling uniform light transmittance,...

Details Optical storage medium enabling uniform light transmittance,... Optical storage medium enabling uniform light transmittance,...

2007-02-20

2007-02-20

Psitos, A M (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Layered

C369S275300, C369S053210

Reexamination Certificate

active

10142488

ABSTRACT:
An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.

REFERENCES:
patent: 4827462 (1989-05-01), Flannagan et al.
patent: 5418768 (1995-05-01), Senshu
patent: 5914926 (1999-06-01), Maeno et al.
patent: 6005839 (1999-12-01), Sako et al.
patent: 6330215 (2001-12-01), Lim
patent: 6370102 (2002-04-01), Mons et al.
patent: 6421315 (2002-07-01), Satoh et al.
patent: 6621786 (2003-09-01), Mons et al.
patent: 6728174 (2004-04-01), Sako et al.
patent: 6735158 (2004-05-01), Futakuchi et al.
patent: 6768712 (2004-07-01), Katsuda
patent: 6850469 (2005-02-01), Ogawa et al.
patent: 6894962 (2005-05-01), Nishiuchi et al.
patent: 6904011 (2005-06-01), Van Woudenberg et al.
patent: 2001-052342 (2001-02-01), None
patent: WO 98/58368 (1998-12-01), None
K. Kurokawa et al., “A 16.8 GB Double-Decker Phase Change Disc”: SPIE vol. 3864: Jul. 1999: pp. 197-199.

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