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1. (WO2018045133) VARIABLE ACOUSTICS LOUDSPEAKER
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Pub. No.: WO/2018/045133 International Application No.: PCT/US2017/049543
Publication Date: 08.03.2018 International Filing Date: 31.08.2017
IPC:
H04R 1/40 (2006.01) ,H04R 3/12 (2006.01) ,H04S 3/02 (2006.01) ,G10K 11/34 (2006.01)
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
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
S
STEREOPHONIC SYSTEMS
3
Systems employing more than two channels, e.g. quadraphonic
02
of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11
Methods 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
18
Methods or devices for transmitting, conducting or directing sound
26
Sound-focusing or directing, e.g. scanning
34
using electrical steering of transducer arrays, e.g. beam steering
Applicants: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED[US/US]; 400 Atlantic Street Stamford, Connecticut 06901, US
Inventors: HORBACH, Ulrich; US
Agent: SLUTSKY, Isaac T.; US
KUSHMAN, James A.; US
NEMAZI, John E.; US
BRODBINE, Michael S.; US
Priority Data:
62/382,21231.08.2016US
Title (EN) VARIABLE ACOUSTICS LOUDSPEAKER
(FR) HAUT-PARLEUR ACOUSTIQUE VARIABLE
Abstract:
(EN) A first array of M speaker elements is disposed in a cylindrical configuration about an axis and configured to play back audio at a first range of frequencies. A second array of N speaker elements is disposed in a cylindrical configuration about the axis and configured to play back audio at a second range of frequencies. A digital signal processor generates a first plurality of output channels from an input channel for the first range of frequencies, apply the first plurality of output channels to the first array of speaker elements using a first rotation matrix to generate a first beam of audio content at a target angle about the axis, generate a second plurality of output channels from the input channel for the second range of frequencies, and apply the second plurality of output channels to the second array of speaker elements using a second rotation matrix to generate a second beam of audio content at the target angle.
(FR) Un premier réseau de M éléments de haut-parleur est disposé dans une configuration cylindrique autour d'un axe et configuré pour lire un fichier audio dans une première plage de fréquences. Un second réseau de N éléments de haut-parleur est disposé dans une configuration cylindrique autour de l'axe et configuré pour lire un fichier audio dans une seconde plage de fréquences. Un processeur de signaux numériques génère une première pluralité de canaux de sortie à partir d'un canal d'entrée pour la première plage de fréquences, applique la première pluralité de canaux de sortie au premier réseau d'éléments de haut-parleur à l'aide d'une première matrice de rotation afin de générer un premier faisceau de contenu audio à un angle cible autour de l'axe, génère une seconde pluralité de canaux de sortie à partir du canal d'entrée pour la seconde plage de fréquences et applique la seconde pluralité de canaux de sortie au second réseau d'éléments de haut-parleur à l'aide d'une seconde matrice de rotation afin de générer un second faisceau de contenu audio à l'angle cible.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)