METHOD FOR READING/WRITING MULTILEVEL SIGNALS FROM OPTICAL DISK

METHOD FOR READING/WRITING MULTILEVEL SIGNALS FROM OPTICAL DISK

PROBLEM TO BE SOLVED: To provide a method for performing processing of an error occurrence source in case of reading optical sing to allow a multilevel optical reading system to highly reliably record and restore data.SOLUTION: A system and a method for reading multilevel signals from an optical dis...

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Hauptverfasser: STEVEN W MCLAUGHLIN, STEVEN R SPEELMAN, DAVID C LEE, RICHARD L MARTIN, JONATHAN A ZIMMERMAN, DAVID K WARLAND, JOHN A VAN, YI RIN, JUDITH C PAULSON, YONG CHEN RO, LOLA M MCFETTERS, TERRY WONG
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator STEVEN W MCLAUGHLIN
STEVEN R SPEELMAN
DAVID C LEE
RICHARD L MARTIN
JONATHAN A ZIMMERMAN
DAVID K WARLAND
JOHN A VAN
YI RIN
JUDITH C PAULSON
YONG CHEN RO
LOLA M MCFETTERS
TERRY WONG
description PROBLEM TO BE SOLVED: To provide a method for performing processing of an error occurrence source in case of reading optical sing to allow a multilevel optical reading system to highly reliably record and restore data.SOLUTION: A system and a method for reading multilevel signals from an optical disk 200 are disclosed. The method includes reading raw analog data signals from the disk 200 using an optical head 204 to adjust amplitude of the raw analog data signals. Timing signals are restored from the analog data signals for which amplitude adjustment is performed, using a signal processor 214. The amplitude modulation of the raw analog data signals is corrected by performing processing of the raw analog data signals and timing signals.
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The method includes reading raw analog data signals from the disk 200 using an optical head 204 to adjust amplitude of the raw analog data signals. Timing signals are restored from the analog data signals for which amplitude adjustment is performed, using a signal processor 214. 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subjects BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title METHOD FOR READING/WRITING MULTILEVEL SIGNALS FROM OPTICAL DISK
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