Offset for protection against amorphous pips during write...

Details Offset for protection against amorphous pips during write... Offset for protection against amorphous pips during write...

G - Physics

11

B

352/32.1

G11B 7/00 (2006.01)

Patent

CA 1291815

ABSTRACT OF THE DISCLOSURE Provided is a read signal offset during write verify which prevents the false detection of amorphous pips from an optical disk recorder. Amor- phous pips are the signals caused by the drop in reflection from an optical disk after the laser has caused the surface material to change from its crystalline state to an amorphous state, but not to a hole. When a hole is not formed in the material, the amorphous material later recrystallizes, the drop in reflec- tion no longer occurs and information is lost.

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