发明名称 |
Tunable active sound absorbers |
摘要 |
The sound absorber is a combination of an acoustical transformer with an actively simulated acoustical impedance. The acoustical transformer transforms the high active impedance into a low impedance at the mouth of the transformer. The absorber is tuned by changing the active impedance.
|
申请公布号 |
US6778673(B1) |
申请公布日期 |
2004.08.17 |
申请号 |
US19990419576 |
申请日期 |
1999.10.18 |
申请人 |
HOBELSBERGER MAXIMILIAN HANS |
发明人 |
HOBELSBERGER MAXIMILIAN HANS |
分类号 |
G10K11/02;G10K11/04;G10K11/16;G10K11/172;H04R3/00;(IPC1-7):H04R3/00 |
主分类号 |
G10K11/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|