Method and apparatus for reading and writing a multilevel signal from an optical disc oscillators

A system and method are disclosed for reading a multilevel signal from an optical disc. The method includes reading a raw analog data signal from a disc using an optical detector and adjusting the amplitude of the raw analog data signal. A timing signal is recovered from the amplitude adjusted analo...

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Bibliographische Detailangaben
Hauptverfasser:	LING YI, MCPHETERS LAURA L, MARTIN RICHARD L, SPIELMAN STEVEN R, POWELSON JUDITH C, WARLAND DAVID K, FAN JOHN L, LEE DAVID C, WONG TERRENCE L, MCLAUGHLIN STEVEN E, ZINGMAN JONATHAN A, LO YUNGNG
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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Beschreibung
Zusammenfassung:	A system and method are disclosed for reading a multilevel signal from an optical disc. The method includes reading a raw analog data signal from a disc using an optical detector and adjusting the amplitude of the raw analog data signal. A timing signal is recovered from the amplitude adjusted analog data signal and correction is made for amplitude modulation of the raw analog data signal by processing the raw analog data signal and the timing signal.