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    • 7. 发明授权
    • Laser power control in an optical disc drive
    • 光盘驱动器中的激光功率控制
    • US07839906B1
    • 2010-11-23
    • US11810666
    • 2007-06-06
    • Pantas SutardjaChristopher Painter
    • Pantas SutardjaChristopher Painter
    • H01S3/13
    • H01S5/042H01S5/0683
    • Exemplary embodiments provide a method and system for controlling laser power in an optical disc drive. The exemplary embodiment of a control system includes at least one control component for generating a control signal; a plant for generating a control output responsive to the control signal; and a dual feedback control loop coupled between the control output of the plant and the control component, the dual feedback control loop comprising a combination of a running optimal power control (ROPC) loop, and an automatic power control (APC) loop that run concurrently for generating respective feedback control signals that are input to the control component for generation of a combined control signal adjustment that is used at least in part to generate the control signal.
    • 示例性实施例提供了一种用于控制光盘驱动器中的激光功率的方法和系统。 控制系统的示例性实施例包括用于产生控制信号的至少一个控制部件; 用于响应于所述控制信号产生控制输出的设备; 以及耦合在工厂的控制输出和控制部件之间的双重反馈控制回路,所述双反馈控制回路包括运行中的最佳功率控制(ROPC)回路和同时运行的自动功率控制(APC)回路的组合 用于产生输入到控制部件的各个反馈控制信号,用于产生至少部分地用于产生控制信号的组合控制信号调整。