Method for manufacturing wrinkle ridge / wrinkle groove recording/reproducing optical disk

Method for manufacturing wrinkle ridge / wrinkle groove recording/reproducing optical disk

In a sector address region (5), address blocks (114,117) including address numbers, reproduction clock synchronization signals and ID numbers are shifted alternately to the inner periphery side or the outer periphery side with respect to a track center by substantially half a track pitch along the r...

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1. Verfasser: NAGAI TAKAHIRO,SATO HIRO,TAKAKI HIROJI
Format: Patent
Sprache:eng
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator NAGAI TAKAHIRO,SATO HIRO,TAKAKI HIROJI
description In a sector address region (5), address blocks (114,117) including address numbers, reproduction clock synchronization signals and ID numbers are shifted alternately to the inner periphery side or the outer periphery side with respect to a track center by substantially half a track pitch along the radius direction. As a result, the reading of addresses of a land/groove recording/reproduction type optical disk is improved while improving the tracking stability in the sector address regions. Non-pit data is located at a beginning portion of the reproduction clock synchronization signal.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title Method for manufacturing wrinkle ridge / wrinkle groove recording/reproducing optical disk
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