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1. (US20190037295) VIBRATION CANCELLING SPEAKER ARRANGEMENT

Office : United States of America
Application Number: 16072030 Application Date: 26.01.2017
Publication Number: 20190037295 Publication Date: 31.01.2019
Publication Kind : A1
Prior PCT appl.: Application Number:PCTUS1715028 ; Publication Number: Click to see the data
IPC:
H04R 1/02
H04R 3/12
H04R 1/40
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1
Details of transducers
02
Casings; Cabinets; Mountings therein
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3
Circuits for transducers
12
for distributing signals to two or more loudspeakers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1
Details of transducers
20
Arrangements for obtaining desired frequency or directional characteristics
32
for obtaining desired directional characteristic only
40
by combining a number of identical transducers
CPC:
H04R 1/025
H04R 1/403
H04R 3/12
Applicants: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
Inventors: Brian STERLING
Priority Data:
Title: (EN) VIBRATION CANCELLING SPEAKER ARRANGEMENT
Abstract: front page image
(EN)

A speaker assembly for being mounted within a wall is provided. The speaker assembly has a housing and a plurality of transducers supported by the housing. Each transducer has a front radiation surface and a radiation rear surface adapted to radiate sound along a central axis. The transducers are arranged relative to each other so the central axes of acoustic radiation of each of the transducers intersect at a circumcenter defined between the plurality of transducers to substantially cancel vibrations from the plurality of transducers. A slot is formed adjacent of each of the transducers. The slot extending a depth dimension of the assembly between a slot opening for transmitting acoustic radiation from the plurality of transducers and a back wall of the housing, wherein the depth dimension is generally perpendicular to the central axes of acoustic radiation of each of the transducers.


Also published as:
EP3409022CN208987110WO/2017/132313