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1. (WO2010083641) METHOD AND APPARATUS FOR DETECTING DOUBLE TALK
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/083641 International Application No.: PCT/CN2009/070226
Publication Date: 29.07.2010 International Filing Date: 20.01.2009
IPC:
H04B 3/23 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
3
Line transmission systems
02
Details
20
Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
23
using a replica of transmitted signal in the time domain, e.g. echo cancellers
Applicants:
华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN/CN]; 中国广东省深圳市龙岗区坂田华为基地总部办公楼, Guangdong 518129 Huawei Administration Building, Bantian, Longgang District Shenzhen, Guangdong 518129, CN (AllExceptUS)
程荣 CHENG, Rong [CN/CN]; CN (UsOnly)
张崇岩 ZHANG, Chongyan [CN/CN]; CN (UsOnly)
韦春妍 WEI, Chunyan [CN/CN]; CN (UsOnly)
Inventors:
程荣 CHENG, Rong; CN
张崇岩 ZHANG, Chongyan; CN
韦春妍 WEI, Chunyan; CN
Agent:
北京同立钧成知识产权代理有限公司 LEADER PATENT & TRADEMARK FIRM; 中国北京市海淀区西直门北大街32号枫蓝国际A座8F-6, Beijing 100029 8F-6, Bldg. A, Winland International Center No. 32 Xizhimen North Street Haidian District, Beijing 100082, CN
Priority Data:
Title (EN) METHOD AND APPARATUS FOR DETECTING DOUBLE TALK
(FR) PROCÉDÉ ET APPAREIL DE DÉTECTION DE DOUBLE PAROLE
(ZH) 双端通话检测方法及装置
Abstract:
(EN) A method and apparatus for detecting double talk are provided. The method includes acquiring a far-end signal frame and a near-end signal frame (101); detecting the talk state based on the frequency spectrum difference between the far-end signal frame and the near-end signal frame (102). The apparatus includes an acquiring module for acquiring the far-end frame and the near-end signal frame; a frequency spectrum detecting module for detecting the talk state based on the frequency spectrum difference between the far-end signal frame and the near-end signal frame.
(FR) L'invention porte sur un procédé et un appareil de détection de double parole. Le procédé comprend l'acquisition d'une trame de signal d'extrémité lointaine et d'une trame de signal d'extrémité proche (101); la détection de l'état de parole sur la base de la différence de spectre de fréquence entre la trame de signal d'extrémité lointaine et la trame de signal d'extrémité proche (102). L'appareil comprend un module d'acquisition pour acquérir la trame de signal d'extrémité lointaine et la trame de signal d'extrémité proche; un module de détection de spectre de fréquence pour détecter l'état de parole sur la base de la différence de spectre de fréquence entre la trame de signal d'extrémité lointaine et la trame de signal d'extrémité proche.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)
Also published as:
EP2348645CN102160296