Secure optical information disc having a minimized metal layer

Details Secure optical information disc having a minimized metal layer Secure optical information disc having a minimized metal layer

2007-03-06

2007-03-06

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

C369S273000, C340S572600, C340S572800

Reexamination Certificate

active

11050296

ABSTRACT:
A secure optical data disc comprising an electronic article surveillance tag embedded within a layered disc structure comprising first and second substrates is disclosed. The tag is placed within a non-readable zone (i.e., one that does not have data tracks) of the secure disc. To improve signal quality of the tag, the reflective metal layer thickness is minimized and discontinuities are introduced on the reflective metal layer. A first discontinuity separates a data track region of the disc from a mirror/ID band region. A second, radial discontinuity opens the mirror/ID band ring.

REFERENCES:
patent: 5012380 (1991-04-01), Harissis et al.
patent: 5347508 (1994-09-01), Montbriand et al.
patent: 5671202 (1997-09-01), Brownstein et al.
patent: 5699047 (1997-12-01), Tsai et al.
patent: 5825292 (1998-10-01), Tsai et al.
patent: 5939985 (1999-08-01), Tsai et al.
patent: 6097291 (2000-08-01), Tsai et al.
patent: 6137413 (2000-10-01), Ryan, Jr.
patent: 6525661 (2003-02-01), Tsai
patent: 6614750 (2003-09-01), Weber et al.
patent: 6693542 (2004-02-01), Hasegawa
patent: 6806842 (2004-10-01), King et al.
patent: 6947371 (2005-09-01), Bigley
patent: 2003/0086361 (2003-05-01), Sellers, Jr. et al.
patent: 2004/0052202 (2004-03-01), Brollier
International Search Report and Written Opinion of the International Searching Authority.
Corrected Written Opinion Of The International Searching Authority.

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