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1. WO2020110745 - AUDIO IMAGE CONTROL METHOD, HEADPHONES, AND HEADPHONE ATTACHMENT

Publication Number WO/2020/110745
Publication Date 04.06.2020
International Application No. PCT/JP2019/044643
International Filing Date 14.11.2019
IPC
H04R 1/10 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
10Earpieces; Attachments therefor
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 5/033 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
5Stereophonic arrangements
033Headphones for stereophonic communication
G10K 11/28 2006.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
18Methods or devices for transmitting, conducting or directing sound
26Sound-focusing or directing, e.g. scanning
28using reflection, e.g. parabolic reflectors
CPC
G10K 11/28
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
18Methods or devices for transmitting, conducting, or directing sound
26Sound-focusing or directing, e.g. scanning
28using reflection, e.g. parabolic reflector
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 1/34
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
32for obtaining desired directional characteristic only
34by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04R 5/033
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
5Stereophonic arrangements
033Headphones for stereophonic communication
Applicants
  • 堀江 利彦 HORIE Toshihiko [JP]/[JP]
Inventors
  • 堀江 利彦 HORIE Toshihiko
Agents
  • 神崎 正浩 KANZAKI Masahiro
Priority Data
2018-22334729.11.2018JP
2019-06205628.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) AUDIO IMAGE CONTROL METHOD, HEADPHONES, AND HEADPHONE ATTACHMENT
(FR) PROCÉDÉ DE COMMANDE D'IMAGE AUDIO, CASQUES D'ÉCOUTE ET ACCESSOIRE DE CASQUE D'ÉCOUTE
(JA) 音像制御方法、ヘッドホン、及びヘッドホン用装着具
Abstract
(EN)
This audio image control method controls the localization of an audio image in a space between a headphone/speaker and the auricle. Rearward sound emitted from the headphone/speaker at a position corresponding to the rear of the auricle and traveling toward the auricle is blocked and reflected to travel away toward the front of the auricle. The reflected rearward sound is reflected together with forward scattering sound emitted from the headphone/speaker at a position forwardly of the auricle and travelling away from the auricle, and is allowed to reach the auricle as reflected forward sound travelling from the front of the auricle toward the auricle. Central sound emitted from the central portion of the headphone/speaker and travelling toward the auricle, and emitted forward sound emitted from the headphone/speaker at a position corresponding to the front of the auricle and traveling toward the auricle are allowed to reach the auricle directly.
(FR)
L'invention concerne un procédé de commande d'image audio qui commande la localisation d'une image audio dans un espace entre un casque d'écoute/haut-parleur et l'oreillette. Un son arrière émis depuis le casque d'écoute/haut-parleur à une position correspondant à l'arrière de l'oreillette et se déplaçant vers l'oreillette est bloqué et réfléchi pour s'éloigner vers l'avant de l'oreillette. Le son arrière réfléchi est réfléchi conjointement avec un son de diffusion vers l'avant émis depuis le casque d'écoute/haut-parleur à une position vers l'avant de l'oreillette et s'éloignant de l'oreillette et est autorisé à atteindre l'oreillette sous la forme d'un son avant réfléchi se déplaçant depuis l'avant de l'oreillette vers l'oreillette. Un son central émis depuis la partie centrale du casque d'écoute/haut-parleur et se déplaçant vers l'oreillette et un son avant émis qui est émis depuis le casque/haut-parleur à une position correspondant à l'avant de l'oreillette et se déplaçant vers l'oreillette sont autorisés à atteindre directement l'oreillette.
(JA)
【解決手段】音像制御方法は、ヘッドホン・スピーカーと耳介の空間における音像の定位を制御する。ヘッドホン・スピーカーの耳介後方に対応する位置から放射されて耳介に向かう後方音を遮蔽して、耳介前方へ遠ざかるように反射させる。この反射させた後方音を、ヘッドホン・スピーカーの耳介前方に対応する位置から放射され、耳介から遠ざかる前方離散音と共に反射させて、耳介前方から耳介に向かう反射前方音として耳介に到達させる。ヘッドホン・スピーカーの中央部から放射され耳介に向かう中央音、及びヘッドホン・スピーカーの耳介前方に対応する位置から放射され耳介に向かう放射前方音は、直接耳介に到達させる。
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