Optical recording medium and reproducing apparatus

Details Optical recording medium and reproducing apparatus Optical recording medium and reproducing apparatus

2006-10-03

2006-10-03

Wu, Jingge (Department: 2623)

Image analysis

Applications

C369S030030, C369S044310

Reexamination Certificate

active

07116797

ABSTRACT:
In an optical recording medium of the present invention, plural pits which carry main information recorded in a user area and tangential push/pull (T-PP) information required for reproducing the main information recorded in T-PP area are formed. The pit length in a track direction is formed according to the main information, and the pit depth is formed according to the T-PP information, and copyright protection information by digital watermarking is embedded in the main information. Also, if the optical disk by unauthorized copying is loaded, a reproducing apparatus restricts the reproduction thereof.

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