INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS AND METHOD, AND INFORMATION REPRODUCING APPARATUS AND METHOD
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United States of America Patent
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Issued Date -
Jan 24, 2013
app pub date -
Apr 2, 2010
filing date -
Apr 2, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An information recording medium (11) adopting a CLV method is provided with: a guide layer (12) in which tracks (TR) are formed in advance; and a plurality of recording layers (13) laminated on the guide layer. On the tracks, a plurality of guide areas (22), each of which has a physical structure for carrying guide information for guidance, are arranged discretely at arrangement intervals of predetermined distance or less which is set in advance in a track direction and are shifted between a plurality of tracks throughout the plurality of tracks which are adjacent to each other in a radial direction.
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