公开(公告)号：US3883832A

公开(公告)日：1975-05-13

申请号：US30420472

申请日：1972-11-06

申请人： FOSGATE JAMES WAYNE

发明人： FOSGATE JAMES WAYNE

IPC分类号： H03H7/065 ,  H03H7/10 ,  H03H7/16

CPC分类号： H03H7/065 ,  H03H7/1725

摘要： A parallel-T audio frequency notch filter utilizing an additional resistive control element which when increased in resistive value forces the parallel-T to lower its maximum attenuation position along the frequency spectrum in accordance with said resistance changes.

摘要翻译： 利用附加电阻控制元件的并行T音频陷波滤波器，当电阻值增加时，根据所述电阻变化，迫使并行T降低其沿着频谱的最大衰减位置。