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. (WO2009118258) METHOD FOR DETECTING MISSING IP PACKETS IN A DVB-H STREAM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/118258    International Application No.:    PCT/EP2009/053148
Publication Date: 01.10.2009 International Filing Date: 17.03.2009
IPC:
H04L 1/00 (2006.01)
Applicants: ENENSYS TECHNOLOGIES [FR/FR]; 80 avenue des Buttes de Coesmes F-35000 Rennes (FR) (For All Designated States Except US).
GUITTON, Williams [FR/FR]; (FR) (For US Only)
Inventors: GUITTON, Williams; (FR)
Agent: MAILLET, Alain; (FR)
Priority Data:
08/01683 27.03.2008 FR
Title (EN) METHOD FOR DETECTING MISSING IP PACKETS IN A DVB-H STREAM
(FR) PROCÉDÉ DE DÉTECTION DE PAQUETS IP MANQUANTS DANS UN FLUX DVB-H
Abstract: front page image
(EN)The invention pertains to the field of multimedia service broadcasting to terminals for the rendering of said services. The invention relates more particularly to the broadcasting of burst-mode services for mobile terminals, as in the case, for example, of the DVB-H broadcasting standard (Digital Video Broadcasting - Handheld) as defined in the document "ETSI EN 302 304, DVB-H — Transmission System for Handheld Terminals". The invention also relates to a method for detecting the loss of IP packets in a DVB-H stream received in a burst transmission mode. If the flow is sent without correction of FEC-type errors (Forward Error Correction), the invention provides a method for generating a flow adapted for easily detecting the loss of IP packets.
(FR)La présente invention concerne le domaine de la diffusion de services multimédia à destination de terminaux de restitution de ces services. Plus particulièrement, on s'intéresse à la diffusion de services en mode salve (burst en anglais) à destination de terminaux mobiles comme c'est le cas, par exemple, dans la norme de diffusion DVB-H (Digital Video Broadcasting - Handheld en anglais) définie dans le document "ETSI EN 302 304, DVB-H — Transmission System for Handheld Terminals". L'invention propose un procédé permettant de détecter la perte de paquets IP dans un flux DVB-H reçu en mode de transmission par salve. Dans le cas où le flux est envoyé sans correction d'erreur de type FEC (Forward Error Correction en anglais), l'invention propose un procédé de génération d'un flux adapté pour permettre la détection facile de la perte de paquets IP.
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 (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: French (FR)
Filing Language: French (FR)