Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020072943 - ACOUSTIC DEVICE

Publication Number WO/2020/072943
Publication Date 09.04.2020
International Application No. PCT/US2019/054768
International Filing Date 04.10.2019
IPC
H04R 1/34 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
34by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04R 7/04 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
7Diaphragms for electromechanical transducers; Cones
02characterised by the construction
04Plane diaphragms
CPC
H04R 1/028
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
02Casings; Cabinets ; ; Supports therefor;; Mountings therein
028associated with devices performing functions other than acoustics, e.g. electric candles
H04R 1/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
10Earpieces; Attachments therefor ; ; Earphones; Monophonic headphones
H04R 1/1008
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
10Earpieces; Attachments therefor ; ; Earphones; Monophonic headphones
1008Earpieces of the supra-aural or circum-aural type
H04R 1/1075
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
10Earpieces; Attachments therefor ; ; Earphones; Monophonic headphones
1058Manufacture or assembly
1075Mountings of transducers in earphones or headphones
H04R 1/1091
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
10Earpieces; Attachments therefor ; ; Earphones; Monophonic headphones
1091Details not provided for in groups H04R1/1008 - H04R1/1083
H04R 1/2857
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
22for obtaining desired frequency characteristic only
28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
2807Enclosures comprising vibrating or resonating arrangements
2853using an acoustic labyrinth or a transmission line
2857for loudspeaker transducers
Applicants
  • BOSE CORPORATION [US]/[US]
Inventors
  • WAKELAND, Ray Scott
  • FROESCHLE, Thomas A.
Agents
  • BRENNER, Maureen M.
Priority Data
16/151,54104.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ACOUSTIC DEVICE
(FR) DISPOSITIF ACOUSTIQUE
Abstract
(EN)
An open audio device having a housing with opposed first and second ends, a flat diaphragm configured to radiate out-of-phase front and rear acoustic radiation, structure supporting the diaphragm so it can move relative to the housing, a primary magnet adjacent to the diaphragm, a magnetic circuit defining a path for magnetic flux, a voice coil exposed to the magnetic flux and configured to move the diaphragm along a radiation axis normal to the diaphragm, and first and second sound-emitting outlets, wherein the first outlet is in or proximate the first end of the housing and acoustically coupled to the front face of the diaphragm to emit front acoustic radiation into an acoustic space, and wherein the second outlet is in or proximate the second end of the housing and acoustically coupled to the rear face of the diaphragm to emit rear acoustic radiation into the same acoustic space.
(FR)
La présente invention concerne un dispositif audio ouvert ayant un boîtier ayant des première et seconde extrémités opposées, un diaphragme plat configuré pour rayonner un rayonnement acoustique avant et arrière déphasé, une structure supportant le diaphragme de sorte qu'il peut se déplacer par rapport au boîtier, un aimant primaire adjacent au diaphragme, un circuit magnétique définissant un trajet pour le flux magnétique, une bobine acoustique exposée au flux magnétique et configurée pour déplacer le diaphragme le long d'un axe de rayonnement normal au diaphragme, et des première et seconde sorties d'émission de son, la première sortie étant dans ou à proximité de la première extrémité du boîtier et couplée acoustiquement à la face avant de la membrane pour émettre un rayonnement acoustique avant dans un espace acoustique, et la seconde sortie étant située dans ou à proximité de la seconde extrémité du boîtier et couplée acoustiquement à la face arrière de la membrane pour émettre un rayonnement acoustique arrière dans le même espace acoustique.
Also published as
Latest bibliographic data on file with the International Bureau