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

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2008102207) METHOD OF ESTIMATING NOISE LEVELS IN A COMMUNICATION SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2008/102207    International Application No.:    PCT/IB2007/004498
Publication Date: 28.08.2008 International Filing Date: 20.12.2007
IPC:
G10L 21/02 (2006.01)
Applicants: SKYPE LIMITED [IE/IE]; Arthur Cox Building, Earlsfort Centre, Earlsfort Terrace, Dublin 2 (IE) (For All Designated States Except US).
VOS, Koen [NL/US]; (US) (For US Only).
SORENSEN, Karsten, Vandborg [DK/SE]; (SE) (For US Only).
BERGENHEIM, Jon [SE/SE]; (SE) (For US Only)
Inventors: VOS, Koen; (US).
SORENSEN, Karsten, Vandborg; (SE).
BERGENHEIM, Jon; (SE)
Agent: DRIVER, Virginia, Rozanne; Page White & Farrer, Bedford House, John Street, London WC1N 2BF (GB)
Priority Data:
0703275.8 20.02.2007 GB
Title (EN) METHOD OF ESTIMATING NOISE LEVELS IN A COMMUNICATION SYSTEM
(FR) PROCÉDÉ D'ESTIMATION DES NIVEAUX DE BRUIT DANS UN SYSTÈME DE COMMUNICATION
Abstract: front page image
(EN)A method of estimating noise in data containing voice information and noise comprising the steps of receiving the data as a sequence of input values; transforming the data by applying a first non linear mapping to the input values wherein the derivative function of the mapping decreases in magnitude as the input values increase in magnitude smoothing the transformed data; and transforming the smoothed transformed data by applying a second non linear mapping that is opposite to the first non linear mapping, to determine an estimate of the noise in the inputted data.
(FR)L'invention concerne un procédé d'estimation du bruit dans des données contenant des informations vocales et du bruit, consistant à recevoir les données comme une suite de valeurs d'entrée ; transformer les données en appliquant un premier mappage non linéaire aux valeurs d'entrée, la fonction de dérivation du mappage diminuant en termes de grandeur à mesure que les valeurs d'entrée augmentent, lissant les données transformées ; et transformer les données transformées lissées en appliquant un second mappage non linéaire qui est opposé au premier mappage non linéaire, de manière à déterminer une estimation du bruit dans les données entrées.
Designated States: AE, AG, AL, AM, 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, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, 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, LV, MC, MT, 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: English (EN)
Filing Language: English (EN)