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    • 3. 发明公开
    • 광디스크 장치에서의 레이저 파워 보정방법
    • 用于补偿光盘设备中的激光功率的方法
    • KR1020080009448A
    • 2008-01-29
    • KR1020060069038
    • 2006-07-24
    • 엘지전자 주식회사
    • 홍변호
    • G11B7/1263
    • A method for compensating a laser power in an optical disc device is provided to record data stably by detecting a critical point, estimating power deviation due to temperature change, and converting power slope through X offset control of the critical point. A method for compensating a laser power in an optical disc device includes the steps of: monitoring light emission start point of a laser diode, and detecting a critical point; estimating power deviation caused by temperature change based on the critical point; and performing OPC(Optimum power control) after compensating estimated power deviation. Power deviation, which is caused temperature change, is estimated through power slope conversion of the critical point using X offset control.
    • 提供了一种用于补偿光盘装置中的激光功率的方法,通过检测临界点,估计由于温度变化引起的功率偏差,以及通过关键点的X偏移控制来转换功率斜率来稳定地记录数据。 一种用于补偿光盘装置中的激光功率的方法,包括以下步骤:监测激光二极管的发光起点,并检测临界点; 估计基于临界点的温度变化引起的功率偏差; 并在补偿估计的功率偏差后执行OPC(最佳功率控制)。 通过使用X偏移控制的临界点的功率斜率转换来估计引起温度变化的功率偏差。