RECORDING MEDIUM PLAYBACK DEVICE AND METHOD, RECORDING MEDIUM PLAYBACK PROGRAM AND RECORDING MEDIUM STORING THE RECORDING MEDIUM PLAYBACK PROGRAM

RECORDING MEDIUM PLAYBACK DEVICE AND METHOD, RECORDING MEDIUM PLAYBACK PROGRAM AND RECORDING MEDIUM STORING THE RECORDING MEDIUM PLAYBACK PROGRAM

PROBLEM TO BE SOLVED: To provide a recording medium playback device and method for reducing increase in power consumption or increase in stable latency, even though access to alternative data occurs, to provide a recording medium playback method, to provide a recording medium playback program, and t...

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Hauptverfasser: YAMAGUCHI SHINJI, UJIIE TAKAAKI
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 YAMAGUCHI SHINJI
UJIIE TAKAAKI
description PROBLEM TO BE SOLVED: To provide a recording medium playback device and method for reducing increase in power consumption or increase in stable latency, even though access to alternative data occurs, to provide a recording medium playback method, to provide a recording medium playback program, and to provide a recording medium storing the recording medium playback program therein. SOLUTION: The user data area of an optical disk 12 is preliminarily partitioned into multiple zones, and by calculating density of a defective sector in each zone, it is decided that whether the density is higher than a predetermined threshold; and when the zone having the density higher than the threshold is read, the recording medium is read at speed higher than the usual read speed and is played back. COPYRIGHT: (C)2010,JPO&INPIT
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SOLUTION: The user data area of an optical disk 12 is preliminarily partitioned into multiple zones, and by calculating density of a defective sector in each zone, it is decided that whether the density is higher than a predetermined threshold; and when the zone having the density higher than the threshold is read, the recording medium is read at speed higher than the usual read speed and is played back. 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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title RECORDING MEDIUM PLAYBACK DEVICE AND METHOD, RECORDING MEDIUM PLAYBACK PROGRAM AND RECORDING MEDIUM STORING THE RECORDING MEDIUM PLAYBACK PROGRAM
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