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1. (WO2002033920) DC-OFFSET COMPENSATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/033920    International Application No.:    PCT/EP2001/011619
Publication Date: 25.04.2002 International Filing Date: 08.10.2001
Chapter 2 Demand Filed:    13.05.2002    
IPC:
H03F 3/45 (2006.01), H03K 5/003 (2006.01), H04L 25/06 (2006.01), H04L 27/14 (2006.01)
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (publ) [SE/SE]; S-126 25 Stockholm (SE) (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NE, NL, NO, NZ, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW only).
MATTISSON, Sven [SE/SE]; (SE) (For US Only).
WILHELMSSON, Leif [SE/SE]; (SE) (For US Only).
MARKENLÖV, Peter [SE/SE]; (SE) (For US Only)
Inventors: MATTISSON, Sven; (SE).
WILHELMSSON, Leif; (SE).
MARKENLÖV, Peter; (SE)
Agent: HASELTINE LAKE & CO.; Imperial House, 15-19 Kingsway, London WC2B 6UD (GB)
Priority Data:
0025314.6 16.10.2000 GB
60/241,349 19.10.2000 US
Title (EN) DC-OFFSET COMPENSATION
(FR) COMPENSATION DE DECALAGE EN CONTINU
Abstract: front page image
(EN)A method of estimating a DC offset value of a signal includes estimating a DC offset value of a preamble part of the signal using a pair of diodes (D1, D2) and a resistor (R) connected in parallel. During receipt of the data part of the signal, the diode pair (D1, D2) is switched out of the circuit by a switch (SW). During reception of the data part, the DC level is estimated using a low pass filter (R, C).
(FR)L'invention concerne un procédé de détermination d'une valeur de décalage en continu d'un signal, ce procédé consistant à déterminer une valeur de décalage en continu d'une partie préambule du signal, au moyen d'une paire de diodes (D1, D2) et d'une résistance (R), connectées en parallèle. Pendant la réception de la partie données du signal, la paire de diodes (D1, D2) est commutée hors circuit, au moyen d'un commutateur (SW), et le niveau du courant continu est déterminé à l'aide d'un filtre passe-bas (R, C).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, 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, PH, 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, 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)