| 摘要 |
A feedback control system includes an optical pickup head, a temperature sensor, a microcontroller and a servo control system. The optical pickup head emits a laser beam onto an optical disk to read/write data. The temperature sensor senses an operating temperature of the optical pickup head, and outputs a corresponding feedback signal. The microcontroller outputs a corresponding control parameter according to the feedback signal. The servo control system adjusts a system characteristic parameter of the optical pickup head according to the control parameter.
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