WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |

Search International and National Patent Collections
World Intellectual Property Organization
Machine translation
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2017/057296    International Application No.:    PCT/JP2016/078318
Publication Date: 06.04.2017 International Filing Date: 26.09.2016
H04R 3/02 (2006.01)
Applicants: ASAHI KASEI MICRODEVICES CORPORATION [JP/JP]; 1-105, Kanda Jinbocho, Chiyoda-ku, Tokyo 1018101 (JP)
Inventors: MIYABE Masashi; (JP)
Agent: RYUKA IP LAW FIRM; 22F, Shinjuku L Tower, 1-6-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo 1631522 (JP)
Priority Data:
2015-189685 28.09.2015 JP
(JA) ハウリング抑制装置
Abstract: front page image
(EN)Provided is an acoustic feedback suppression device provided with: a plurality of filters in which pass-bands and stop-bands are alternately disposed on a frequency axis; and a gain control unit which causes an output gain of each of the plurality of filters to change over time, and which sums and outputs signals thus varied, wherein each of the plurality of filters includes a pass-band in at least a part of a stop-band of another filter.
(FR)L'invention concerne un dispositif d'atténuation de réaction acoustique comportant: une pluralité de filtres dans laquelle des passe-bande et des coupe-bande sont disposés en alternance sur un axe de fréquence; et une unité de commande de gain qui fait varier un gain de sortie de chaque filtre de la pluralité de filtres dans le temps, et qui additionne et délivre des signaux faisant l'objet de cette variation, chaque filtre de la pluralité de filtres comprenant un passe-bande dans au moins une partie d'un coupe-bande d'un autre filtre.
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, JP, KE, KG, 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 (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: Japanese (JA)
Filing Language: Japanese (JA)