发明名称 |
LOUDSPEAKER SYSTEM HAVING A BASS-REFLEX PORT |
摘要 |
A loudspeaker system comprises an enclosure (1) which accommodates a loudspeaker device (3) and a bass-reflex port (5) having two open ends (5b, 5c). The port has a longitudinal axis (5a) and a length (L) defined by the two open ends and has a passage which flares towards the two open ends. This provides flared portions (5d, 5e) which portions extend over a substantial part of the length of the port. In order to minimize undesirable noises and distortions said flared portions, in a longitudinal section of the port, have bounding lines (7) which extend at an angle alpha having a value of between 3 DEG and 12 DEG with respect to the longitudinal axis of the port.
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申请公布号 |
WO9905887(A1) |
申请公布日期 |
1999.02.04 |
申请号 |
WO1998IB00914 |
申请日期 |
1998.06.11 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS AB |
发明人 |
ROOZEN, NICOLAAS, BERNARDUS;VAEL, JOZEF, ERNEST, MARIE;NIEUWENDIJK, JORIS, ADELBERT, MARIA |
分类号 |
H04R1/02;H04R1/28;(IPC1-7):H04R1/28 |
主分类号 |
H04R1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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