Method and apparatus to generate tracking error signal, optical storage drive and lead-in control method

Method and apparatus to generate tracking error signal, optical storage drive and lead-in control method

A method and apparatus to stably generate a tracking error signal even for a compact disc (CD) with a pit depth of about lambda /4 or a narrow track pitch in an optical storage drive, an optical storage drive using the same, and a lead-in control method of the optical storage drive. The method inclu...

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Hauptverfasser: KO, SEONG-KYUN, LEE, JONG-GYOU, PARK, CHANG-SOO
Format: Patent
Sprache:eng ; fre ; ger
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator KO, SEONG-KYUN
LEE, JONG-GYOU
PARK, CHANG-SOO
description A method and apparatus to stably generate a tracking error signal even for a compact disc (CD) with a pit depth of about lambda /4 or a narrow track pitch in an optical storage drive, an optical storage drive using the same, and a lead-in control method of the optical storage drive. The method includes detecting reflected laser beams using a photo detector (32); and generating a first tracking error signal based on optical signals received by the photo detector (32), using a differential phase detection (DPD) method and outputting the first tracking error signal as the tracking error signal.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title Method and apparatus to generate tracking error signal, optical storage drive and lead-in control method
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