| 摘要 |
In a feedforward control type reproduced signal processor, a clock generator 1 changes a clock frequency, depending on a digital value set by a digital value generator 7. Therefore, power consumption of a system is optimized and control is facilitated. Moreover, when a frequency lock state is established in which a frequency ratio calculated by a frequency ratio calculator 3 satisfies a set condition, a modulation component having a small change is generated using a clock of a clock generator 1. Therefore, the digital value is updated with the modulation component, so that a change in clock frequency of the clock generator 1 gradually varies. As a result, the influence of the change in clock frequency on the response of a decoding process is reduced. |
