Invention Publication
- Patent Title: LOUDSPEAKER WITH REDUCED AUDIO COLORATION CAUSED BY REFLECTIONS FROM A SURFACE
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Application No.: US18377261Application Date: 2023-10-05
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Publication No.: US20240048895A1Publication Date: 2024-02-08
- Inventor: Martin E. Johnson , Simon K. Porter , Suzanne Hardy , John H. Sheerin
- Applicant: APPLE INC.
- Applicant Address: US CA CUPERTINO
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA CUPERTINO
- Main IPC: H04R1/28
- IPC: H04R1/28 ; H04R1/40 ; H04R1/02 ; H04R1/26 ; H04R3/14

Abstract:
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.
Public/Granted literature
- US12192698B2 Loudspeaker with reduced audio coloration caused by reflections from a surface Public/Granted day:2025-01-07
Information query
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