| 摘要 |
A temperature compensating method and apparatus uses a front sensor to measure a first power of a light-emitting unit emitting a light, and a thermal sensor to measure the temperature of the light-emitting unit. The temperature is inputted into an I/O unit to figure out a second power from the equations of the temperature and power. Then, the first and second powers are inputted into a controller to adjust the power of the light-emitting unit, or the second powers are inputted into a write strategy to change an output clock to adjust the energy of the light without changing the power of the light-emitting unit. The optical disc device has the effect of the temperature compensation.
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