Magneto-optical recording medium having watermark for...

Details Magneto-optical recording medium having watermark for... Magneto-optical recording medium having watermark for...

2005-03-09

2008-08-19

Dinh, Tan X (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S275200

Reexamination Certificate

active

07414924

ABSTRACT:
An optical disk that includes main information and write-once information recorded on the optical disk. The write-once information is recorded as information unique to the optical disk, and the write-once information stores at least watermark production parameters for producing a watermark.

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