Adaptive fuzzy logic for focusing in optical disk player

Yong C. Choi, Chang Hun Kim

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    For the nonlinear behaviors of the actuator and servo system of the optical disk player, a fuzzy control is introduced. Focus servo controls the laser beam to focus on the playing surface of the disc by vertical movement of the objective lens. The change of the distance between the objective lens and the disc must be within the allowable focus error to stay in focus. This must be maintained even with a slightly warped or uneven disc and in a portable player. This paper will observe on how the focusing is controlled in an optical disk player and will evaluate algorithm based on the model using Adaptive Fuzzy Logic.

    Original languageEnglish
    Pages (from-to)545-550
    Number of pages6
    JournalIEEE Transactions on Consumer Electronics
    Volume54
    Issue number2
    DOIs
    Publication statusPublished - 2008 May

    Keywords

    • Focusing in Optical Disk Player
    • Focusing using Adaptive Fuzzy Logic
    • Fuzzy Logic for ODP

    ASJC Scopus subject areas

    • Media Technology
    • Electrical and Electronic Engineering

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