| 发明名称 |
Loudspeaker system having a bass-reflex port |
| 摘要 |
A loudspeaker system comprises an enclosure which accommodates a loudspeaker device and a bass-reflex port (105). The port has two open ends (105b, 105c) and a central area (c) provided with perforations (109), as well as a foam material (111) provided in and/or on the perforations.
|
| 申请公布号 |
US6275597(B1) |
申请公布日期 |
2001.08.14 |
| 申请号 |
US19990316982 |
申请日期 |
1999.05.24 |
| 申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
ROOZEN NICOLAAS B.;HIRSCHBERG ABRAHAM;VAN ECK PASCAS |
| 分类号 |
H04R1/02;H04R1/28;(IPC1-7):H04R25/00 |
主分类号 |
H04R1/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
