Active noise reduction circuit and active noise reduction method for generating anti-noise signal

The invention relates to an active noise reduction circuit and an active noise reduction method for generating an anti-noise signal. The active noise reduction circuit includes a plurality of filters. The plurality of filters include at least one first filter and at least one second filter. The at least one first filter is configured to generate at least one first filter output, wherein each of the at least one first filter has a first filter type. The at least one second filter is configured to generate at least one second filter output, wherein each of the at least one second filter has a second filter type different from the first filter type. The anti-noise signal is jointly controlled by the at least one first filter output and the at least one second filter output. The at least one first filter and the at least one second filter are connected in parallel. 一种用以产生抗噪信号的主动降噪电路以及主动降噪方法。该主动降噪电路包含多个滤波器。该多个滤波器包含至少一第一滤波器以及至少一第二滤波器。该至少一第一滤波器用以产生至少一第一滤波器输出，其中该至少一第一滤波器中的每一个均具有一第一滤波器类型。该至少一第二滤波器用以产生至少一第二滤波器输出，其中该至少一