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1. (WO2004006463) METHOD AND APPARATUS FOR CONTROLLING ECHO CANCELLATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/006463    International Application No.:    PCT/US2003/020916
Publication Date: 15.01.2004 International Filing Date: 01.07.2003
IPC:
H04B 3/23 (2006.01)
Applicants: CISCO TECHNOLOGY, INC. [US/US]; 170 West Tasman Drive, San Jose, CA 95134-1706 (US)
Inventors: WILDFEUER, Herbert, M.; (US).
GARAKANI, Mehryar, K.; (US)
Agent: SHOWALTER, Barton, E.; Baker Botts L.L.P., 2001 Ross Avenue, Dallas, TX 75201-2980 (US)
Priority Data:
10/188,815 02.07.2002 US
Title (EN) METHOD AND APPARATUS FOR CONTROLLING ECHO CANCELLATION
(FR) PROCEDE ET DISPOSITIF DE COMMANDE DE SUPPRESSION D'ECHOS
Abstract: front page image
(EN)Controlling echo cancellation includes receiving signals associated with a call. A signal of the signals is detected. Whether the detected signal is a high speed signal or a low speed signal is determined. Echo cancellation is disabled if the detected signal is a high speed signal. The echo cancellation is enabled if the detected signal is a low speed signal.
(FR)La commande de suppression d'échos passe par la réception de signaux associés à un appel. Un signal est détecté parmi des signaux. On détermine si ce signal est un signal grande vitesse ou basse vitesse. La suppression d'écho n'intervient pas si le signal détecté est un signal grande vitesse, mais intervient en revanche si ce même signal est un signal basse vitesse.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, 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, IT, LU, MC, NL, 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: English (EN)
Filing Language: English (EN)