Information recording medium and information...

Details Information recording medium and information... Information recording medium and information...

2004-08-25

2008-11-04

Feild, Joseph (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S275300, C369S044130

Reexamination Certificate

active

07447142

ABSTRACT:
A groove is formed on a master disc. The groove is formed substantially along a spiral standard locus, but a groove position is displaced in a direction crossing the standard locus according to record data. The wobble is determined from a wobble signal. A wobble is formed such that an average value of displacement of the groove position with the standard locus as a reference is zero for each predetermined data unit.

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