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1. (WO2005112413) A METHOD AND APPARATUS OF AUDIO SWITCHING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/112413    International Application No.:    PCT/CN2005/000580
Publication Date: 24.11.2005 International Filing Date: 27.04.2005
IPC:
H04M 3/56 (2006.01)
Applicants: HUAWEI TECHNOLOGIES CO., LTD. [CN/CN]; Huawei Administration Building, Bantian, Longgang District, Shenzhen, Guangdong 518129 (CN) (For All Designated States Except US).
YU, Shuian [CN/CN]; (CN) (For US Only)
Inventors: YU, Shuian; (CN)
Agent: UNITALEN ATTORNEYS AT LAW; 7th Floor, Scitech Place, No. 22, Jian Guo Men Wai Ave., Chao Yang District, Beijing 100004 (CN)
Priority Data:
200410038195.5 14.05.2004 CN
Title (EN) A METHOD AND APPARATUS OF AUDIO SWITCHING
(FR) PROCEDE ET APPAREIL DE COMMUTATION AUDIO
Abstract: front page image
(EN)The invention discloses a method of audio switching, including: the operation of respectively extracting muting sign from the coding audio data which transmitted from the every terminal, and getting the non-muting terminals; the operation of respectively decoding the coding audio data of the every non-muting terminal; according to the decoded audio data of the every non-muting terminal, calculating the audio energy of the every non-muting terminal respectively; comparing the audio energy value among the non-muting terminals, and selecting the terminals with the higher audio energy ;linearly superposing the decoded audio data among the selected terminals in manner of different combination, and respectively transmitting the decoded audio data which was superposed linearly in manner of different combination to the corresponding terminals. In addition, the invention also discloses an apparatus of audio switching. The invention can decrease the resource consumption during the audio switching, and increase the audio communication effect among the terminals.
(FR)L'invention concerne un procédé de commutation audio consistant à extraire un signal de réglage silencieux à partir des données audio de codage transmises à partir de chaque terminal et à établir les terminaux en mode non silencieux, à décoder les données audio de codage de chaque terminal en mode non silencieux, à calculer l'énergie audio de chaque terminal en mode non silencieux selon les données audio de codage de chaque terminal en mode non silencieux, à comparer les valeurs d'énergie entre les terminaux en mode non silencieux et à sélectionner les terminaux présentant l'énergie audio la plus élevée, à superposer linéairement les données audio décodées entre les terminaux sélectionnés selon différentes combinaisons, et à transmettre les données audio décodées superposées linéairement selon différentes combinaisons aux terminaux correspondants. En outre, l'invention concerne un appareil de commutation audio. L'invention permet de réduire la consommation d'énergie pendant la commutation audio et de renforcer l'effet de communication audio entre les terminaux.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (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, HU, IE, IS, IT, LT, LU, MC, NL, 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)