METHOD AND SYSTEM FOR CONTROLLING OPTICAL PICK-UP HEAD LOCKED TO TRACK CENTER OF OPTICAL STORAGE MEDIUM

METHOD AND SYSTEM FOR CONTROLLING OPTICAL PICK-UP HEAD LOCKED TO TRACK CENTER OF OPTICAL STORAGE MEDIUM

A method for controlling a position of a laser spot of a laser beam on an optical storage medium of a land and groove recording/reproduction type is provided. The method includes: detecting a pulse occurring in a reference signal while the laser spot is passing through a boundary between a groove tr...

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Hauptverfasser: LAN KUO-JUNG, YIN HAO-HUI, WU CHIHUNG
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 LAN KUO-JUNG
YIN HAO-HUI
WU CHIHUNG
description A method for controlling a position of a laser spot of a laser beam on an optical storage medium of a land and groove recording/reproduction type is provided. The method includes: detecting a pulse occurring in a reference signal while the laser spot is passing through a boundary between a groove track and a land track, wherein the reference signal is generated according to a reflected laser beam from the optical storage medium; determining a compensation value of the reference signal according to the pulse; utilizing the compensation value to adjust the reference signal for generating an adjusted reference signal; and utilizing the adjusted reference signal to control the position of the laser spot.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title METHOD AND SYSTEM FOR CONTROLLING OPTICAL PICK-UP HEAD LOCKED TO TRACK CENTER OF OPTICAL STORAGE MEDIUM
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