READ POWER CONTROL

PURPOSE: A reading power control method and a system thereof are provided to lower an error rate by a micro-holographic reading technique. CONSTITUTION: A power control module(74) receives an instruction corresponding to a target data layer to be read from a disk. The power control module controls p...

Full description

Saved in:
Bibliographic Details
Main Authors REN ZHIYUAN, OSTROVERKHOV VICTOR PETROVICH, SHI XIAOLEI, HERSHEY JOHN ERIK, WELLES KENNETH BRAKELEY
Format Patent
LanguageEnglish
Korean
Published 09.07.2012
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE: A reading power control method and a system thereof are provided to lower an error rate by a micro-holographic reading technique. CONSTITUTION: A power control module(74) receives an instruction corresponding to a target data layer to be read from a disk. The power control module controls power of a reading beam from first power to second power based on the instruction. An optical head(82) makes the reading beam move from a previous data layer of the disk to the target data layer. The optical head focuses the reading beam on the target data layer. An actuator transfers elements of the optical head.
Bibliography:Application Number: KR20110145736