| 摘要 |
<p>PURPOSE:To suppress the increase of a circuit scale when processing is divided into multi-phase and implemented in parallel by providing a switching means applying offset subsampling and a means controlling the switching and implementing the offset subsampling in this digital filter circuit. CONSTITUTION:The inside of the digital filter circuit is provided with a means dividing an input signal into multi-phase, that is, a switching circuit 2, and a means 3 controlling the switching sequence of the switching circuit 2, that is, the switching of the switching circuit 2 so as to implement off-set subsampling in the digital filter circuit. Thus, the increase in the circuit scale attended with the constitution dividing the processing in multi-phase so as to allow the digital filter circuit to cope with high speed processing is suppressed.</p> |
