发明授权
- 专利标题： Sound reenforcement equalization system
- 专利标题（中）： 声音均衡系统
-
申请号： US3755749D申请日： 1971-11-22
-
公开(公告)号： US3755749A公开(公告)日： 1973-08-28
- 发明人: VAN RYSWYK C , BONER C
- 申请人： WHITE INSTR INC
- 专利权人： White Instr Inc
- 当前专利权人： White Instr Inc
- 优先权： US20078571 1971-11-22
- 主分类号： H03H11/12
- IPC分类号： H03H11/12 ; H03B1/04 ; H04B1/10
摘要：
An active filter in combination with a sound reenforcement equalization system is provided. The filter permits variation of the notch frequency over a wide range of frequencies and adjustment of the notch depth from zero to any desired value independent of frequency control. Active filters may be cascaded without additional loss in the pass band.
信息查询
