公开(公告)号：US3922623A

公开(公告)日：1975-11-25

申请号：US38980773

申请日：1973-08-20

Applicant: SIEMENS AG

Inventor： BUCHERL ERWIN

IPC: A47B61/00 ,  H03H7/01 ,  H03H7/075 ,  H03H7/04 ,  H04B1/68

CPC classification number: H03H7/01 ,  A47B61/003

Abstract: An electrical filter with a Nyquist flank characteristic is provided for generating a vestigial side-band characterized in that two identical exact separating filters are connected in cascade in such a way that the output of one filter section in the first separating filter is connected to the input of the second separating filter, and in which a signal injected at the input passes through two filter sections having the same attenuation characteristics, and in that two of the filter sections of the separating filters are terminated in identical ohmic resistances, and in that the characteristic functions assigned to the filter sections are self-reciprocal functions.

Abstract translation: 提供了具有奈奎斯特侧面特性的滤光器，用于产生残留边带，其特征在于两个相同的精确分离滤光器级联连接，使得第一分离滤光片中的一个滤光片部分的输出连接到输入 并且其中在输入处注入的信号通过具有相同衰减特性的两个滤波器部分，并且分离滤波器的两个滤波器部分以相同的欧姆电阻端接，并且其特征在于： 分配给过滤器部分的功能是自相互作用的功能。