Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2002.11a
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- Pages.397.2-397
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- 2002
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- 1598-2548(pISSN)
Development of New Focus Control Model for Optical Disk Drives
광디스크 드라이브의 새로운 포커스 제어모델 재발
- Jee, Jung-Geun (Yonsel University ) ;
- Chang, Young-Bae ;
- Park, No-Cheol ;
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Park, Young-Pil
(Yonsel University )
- Published : 2002.11.01
Abstract
There are 4 servo systems in a DVD drive such as a focus servo system, a tracking servo system, a sled servo system and a spindle servo system. Focus servo system maintains relative distance between lens and disk. In this paper, two plant models for the focus servo system will be presented. One of them is newly developed and the other is conventional. Focus error signal between lens and disk is detected using LDV 2 beam method. (omitted)