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Machine translation
1. (WO2001003323) POWER LINE COMMUNICATION SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/003323    International Application No.:    PCT/GB2000/002529
Publication Date: 11.01.2001 International Filing Date: 30.06.2000
Chapter 2 Demand Filed:    24.01.2001    
IPC:
E21B 47/00 (2012.01), E21B 47/12 (2012.01), H02J 13/00 (2006.01), H04B 3/54 (2006.01)
Applicants: THE AUTONOMOUS WELL COMPANY LIMITED [GB/GB]; 48 Echline, The Steadings, South Queensferry, West Lothian EH30 9SW (GB) (For All Designated States Except US).
ROBERTSON, Mark, Patrick [GB/GB]; (GB) (For US Only).
HOSSACK, Graeme, Peter [GB/GB]; (GB) (For US Only)
Inventors: ROBERTSON, Mark, Patrick; (GB).
HOSSACK, Graeme, Peter; (GB)
Agent: MCCALLUM, William, Potter; Cruikshank & Fairweather, 19 Royal Exchange Square, Glasgow G1 3AE (GB)
Priority Data:
9915298.5 01.07.1999 GB
Title (EN) POWER LINE COMMUNICATION SYSTEM
(FR) SYSTEME DE COMMUNICATION PAR COURANT PORTEUR EN LIGNE
Abstract: front page image
(EN)This invention relates to a power line communication (PLC) system (8) wherein the power supply line supplies power and also acts as a communications supply line. A receiver (30) is able to detect small changes in the modulated transmitted information and thereby shut down the circuit. The invention is particularly suitable for use where the IEL is remote from the power supply such as, for example, in down hole oil production situations where very long power cables are used.
(FR)Cette invention concerne un système (8) de communication par courant porteur en ligne (CPL) dont la ligne d'alimentation électrique sert à la fois à fournir de l'électricité et à assurer les communications. Un récepteur (30) peut détecter des petits changements dans les informations transmises modulées, et ensuite éteindre le circuit. L'invention est particulièrement utile quand la charge électrique inductive est éloignée de l'alimentation électrique, par exemple dans le cas d'opérations de forage pétrolier où l'on utilise des câbles électriques très longs.
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)