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1. (WO2010142239) OPTICAL LINE TERMINAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/142239    International Application No.:    PCT/CN2010/073715
Publication Date: 16.12.2010 International Filing Date: 09.06.2010
IPC:
H04B 10/079 (2013.01), H04B 10/69 (2013.01)
Applicants: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD [CN/CN]; 151, Zhuzhou Street, Laoshan District Qingdao, Shandong 266100 (CN) (For All Designated States Except US).
ZHANG, Hua [CN/CN]; (CN) (For US Only).
WU, Xigui [CN/CN]; (CN) (For US Only)
Inventors: ZHANG, Hua; (CN).
WU, Xigui; (CN)
Agent: BEIJING TONGDAXINHENG INTELLECTUAL PROPERTY AGENCY LTD.; Room 2002 A-Building North Ring Center No.18 Yumin Road, Xicheng Beijing 100029 (CN)
Priority Data:
200910016348.9 11.06.2009 CN
Title (EN) OPTICAL LINE TERMINAL
(FR) TERMINAL DE LIGNE OPTIQUE
(ZH) 一种光线路终端
Abstract: front page image
(EN)An optical line terminal (OLT) includes an optical receiving assembly and a processor (4). A current mirror (1), a current-voltage conversion circuit (2) and a switching circuit (3) are connected in sequence between the optical receiving assembly and the processor (4). An energy storage circuit connected to ground is connected between the switching circuit (3) and the processor (4). The optical receiving assembly generates a response current according to the optical signal received. The current mirror (1) processes the current and then transmits it to the current-voltage conversion circuit (2). The conversion circuit (2) converts the current into a voltage signal and transmits the voltage signal to the switching circuit (3). The switching circuit (3) transmits the voltage signal outputted by the conversion circuit (2) to the energy storage circuit. The voltage signal is sampled and held by the energy storage circuit and then outputted to the processor (4). The processor (4) monitors the average optical power of the voltage signal. The OLT can provide a more accurate detection of the average optical power of each burst signal pack in an upstream burst mode.
(FR)L'invention porte sur un terminal de ligne optique (OLT) qui comprend un ensemble de réception optique et un processeur (4). Un miroir de courant (1), un circuit de conversion courant-tension (2) et un circuit de commutation (3) sont connectés en séquence entre l'ensemble de réception optique et le processeur (4). Un circuit de stockage d'énergie connecté à la masse est connecté entre le circuit de commutation (3) et le processeur (4). L'ensemble de réception optique génère un courant de réponse en fonction du signal optique reçu. Le miroir de courant (1) traite le courant et le transmet ensuite au circuit de conversion courant-tension (2). Le circuit de conversion (2) convertit le courant en un signal de tension et transmet le signal de tension au circuit de commutation (3). Le circuit de commutation (3) transmet le signal de tension délivré par le circuit de conversion (2) au circuit de stockage d'énergie. Le signal de tension est échantillonné et maintenu par le circuit de stockage d'énergie et ensuite délivré au processeur (4). Le processeur (4) surveille la puissance optique moyenne du signal de tension. L'OLT peut assurer une détection plus précise de la puissance optique moyenne de chaque bloc de signal de rafale dans un mode rafale en liaison montante.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, 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, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, 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 (AL, 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, SM, 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)