- 专利标题: Loudspeaker with reduced audio coloration caused by reflections from a surface
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申请号: US15513955申请日: 2015-09-29
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公开(公告)号: US10652650B2公开(公告)日: 2020-05-12
- 发明人: Martin E. Johnson , Simon K. Porter , Suzanne Hardy , John H. Sheerin
- 申请人: Apple Inc.
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Kilpatrick, Townsend and Stockton LLP
- 国际申请: PCT/US2015/053025 WO 20150929
- 国际公布: WO2016/054100 WO 20160407
- 主分类号: H04R1/28
- IPC分类号: H04R1/28 ; H04R1/40 ; H04R1/02 ; H04R1/26 ; H04R3/14
摘要:
Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and described may be placed on reflective surfaces without severe audio coloration caused by reflected sounds.
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