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1. (WO2019024984) ACTIVE ROAD NOISE CONTROL
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/024984 International Application No.: PCT/EP2017/069407
Publication Date: 07.02.2019 International Filing Date: 01.08.2017
IPC:
G10K 11/34 (2006.01) ,G10K 11/178 (2006.01)
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
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
16
Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175
using interference effects; Masking sound
178
by electro-acoustically regenerating the original acoustic waves in anti-phase
Applicants:
HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH [DE/DE]; Becker-Goering-Str. 16 76307 Karlsbad, DE
Inventors:
ZAFEIROPOULOS, Nikos; DE
PFAFFINGER, Gerhard; DE
Agent:
WESTPHAL, MUSSGNUG & PARTNER MBB; Werinherstr. 79 81541 München, DE
Priority Data:
Title (EN) ACTIVE ROAD NOISE CONTROL
(FR) COMMANDE ACTIVE DE BRUIT DE ROUTE
Abstract:
(EN) An active road noise control system method for a vehicle includes picking up noise at a multiplicity of positions in or on the vehicle and generating a multiplicity of noise sense signals representative of road noise originating from a road noise source in or at the vehicle, and processing, according to a beamforming scheme, the multiplicity of noise sense signals to generate a reference signal and to provide a sensitivity characteristic for picking up the noise that comprises one main lobe directed to the road noise source. The system and method further includes iteratively and adaptively processing the reference signal to provide a noise reducing signal, and generating at one or more positions in an interior of the vehicle, from the noise reducing signal, noise reducing sound at a listening position in the interior of the vehicle.
(FR) L'invention concerne un procédé et un système de commande active de bruit de route pour un véhicule comprenant la capture de bruit au niveau d'une multiplicité de positions dans ou sur le véhicule et la génération d'une multiplicité de signaux de détection de bruit représentatifs d'un bruit de route provenant d'une source de bruit de route dans le véhicule ou au niveau du véhicule, et le traitement, selon un schéma de formation de faisceau, de la multiplicité de signaux de détection de bruit pour générer un signal de référence et pour fournir une caractéristique de sensibilité afin de capturer le bruit qui comprend un lobe principal dirigé vers la source de bruit de route. Le système et le procédé comprennent en outre le traitement itératif et adaptatif du signal de référence pour fournir un signal de réduction de bruit, et la génération, au niveau d'une ou plusieurs positions à l'intérieur du véhicule, à partir du signal de réduction de bruit, d'un son réduisant le bruit au niveau d'une position d'écoute à l'intérieur du véhicule.
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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)