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. (WO2002027535) METHOD AND SYSTEM FOR EXPANDING A WORD GRAPH TO A PHONE GRAPH BASED ON A CROSS-WORD ACOUSTICAL MODEL TO IMPROVE CONTINUOUS SPEECH RECOGNITION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/027535    International Application No.:    PCT/CN2000/000292
Publication Date: 04.04.2002 International Filing Date: 28.09.2000
IPC:
G06F 17/27 (2006.01), G10L 13/08 (2013.01), G10L 15/187 (2013.01)
Applicants: INTEL CORPORATION [US/US]; 2200 Mission College Boulevard, Santa Clara, CA 95052 (US) (For All Designated States Except US).
ZHAO, Qingwei [CN/CN]; (CN) (For US Only).
YAN, Yonghong [CN/CN]; (CN) (For US Only).
LIN, Zhiwei [SG/SG]; (SG) (For US Only)
Inventors: ZHAO, Qingwei; (CN).
YAN, Yonghong; (CN).
LIN, Zhiwei; (SG)
Agent: CCPIT PATENT AND TRADEMARK LAW OFFICE; 8th Floor, 2 Fuchengmenwai Street, Beijing 100037 (CN)
Priority Data:
Title (EN) METHOD AND SYSTEM FOR EXPANDING A WORD GRAPH TO A PHONE GRAPH BASED ON A CROSS-WORD ACOUSTICAL MODEL TO IMPROVE CONTINUOUS SPEECH RECOGNITION
(FR) PROCEDE ET SYSTEME DE DEVELOPPEMENT D'UN GRAPHE PHONETIQUE A PARTIR D'UN GRAPHE LEXICAL FAISANT APPEL A UN MODELE ACOUSTIQUE CONTEXTUEL EN VUE D'UNE AMELIORATION DE LA RECONNAISSANCE VOCALE EN CONTINU
Abstract: front page image
(EN)A method and system that expands a word graph to a phone graph. An unknown speech signal is received. A word graph is generated based on an application task or based on information extracted from the unknown speech signal. The word graph is expanded into a phone graph. The unknown speech signal is recognized using the phone graph. The phone graph can be based on a cross-word acoustical model to improve continuous speech recognition. By expanding a word graph into a phone graph, the phone graph can consume less memory than a word graph and can reduce greatly the computation cost in the decoding process than that of the word graph thus improving system performance. Furthermore, continuous speech recognition error rate can be reduced by using the phone graph, which provides a more accurate graph for continuous speech recognition.
(FR)L'invention concerne un procédé et un système permettant de développer un graphe phonétique à partir d'un graphe lexical. A cet effet, un signal vocal inconnu est envoyé, un graphe lexical est généré d'après une tâche d'application ou une information extraite dudit signal vocal inconnu et un graphe phonétique est développé à partir du graphe lexical. Ledit graphe phonétique permet de reconnaître le signal vocal inconnu et peut s'inspirer d'un modèle acoustique contextuel afin d'améliorer la reconnaissance vocale en continu. Le graphe phonétique, contrairement au graphe lexical, réduit la consommation de mémoire et diminue considérablement les coûts computationnels dérivés des opérations de décodage, améliorant ainsi les performances du système. De plus, le graphe phonétique, qui assure une plus grande précision dans le cadre de la reconnaissance vocale en continu, diminue les taux d'erreur.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, 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, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)