基本信息:
- 专利标题： NOISE-REMOVING DEVICE
- 专利标题（中）：噪音消除装置
- 申请号：PCT/JP1987000047 申请日：1987-01-24
- 公开(公告)号：WO1987004578A1 公开(公告)日：1987-07-30
- 发明人： FUJITSU TEN LIMITED
- 申请人： FUJITSU TEN LIMITED , TAKAYAMA, Kazuo
- 专利权人： FUJITSU TEN LIMITED,TAKAYAMA, Kazuo
- 当前专利权人： FUJITSU TEN LIMITED,TAKAYAMA, Kazuo
- 优先权： JP61/12982 19860125
- 主分类号： H04B01/10
- IPC分类号： H04B01/10
摘要：
Input signals are guided into a first signal path which includes a variable low-pass filter, and into a second signal path. A control circuit so controls that the cut-off frequency of the variable low-pass filter changes with the frequency of the input signals. When the noise is being generated, the output signals are obtained through the first signal path. When no noise is being generated, the output signals are obtained through the second signals path.