Information storage medium, information recording method,...

Dynamic information storage or retrieval – Systems having plural physically distinct independent tracks... – Having layered storage medium

Reexamination Certificate

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C369S124020

Reexamination Certificate

active

11562085

ABSTRACT:
This invention achieves high-density recording while preventing recording units from overlapping. Recording is done to form a gap between predetermined recording units. Since this gap is formed, even when a rotation driving mechanism of a medium suffers rotation nonuniformity, two neighboring recording units never overlap each other, and destruction of recording data can be prevented.

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