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Machine translation
1. (WO2001091331) METHOD AND APPARATUS FOR REDUCING MULTIPATH DISTORTION IN A WIRELESS LAN SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/091331    International Application No.:    PCT/US2001/016801
Publication Date: 29.11.2001 International Filing Date: 22.05.2001
Chapter 2 Demand Filed:    18.12.2001    
IPC:
H04B 7/08 (2006.01), H04L 1/00 (2006.01), H04L 1/06 (2006.01)
Applicants: SARNOFF CORPORATION [US/US]; 201 Washington Road, CN 5300, Princeton, NJ 08543 (US)
Inventors: MALKEMES, Robert, Conrad; (US).
VENKATESAN, Gopal, Triplicane; (US).
REED, Charles, Jr.; (US)
Agent: MOSER, Raymond; Thomason, Moser & Patterson, 595 Shrewsbury Avenue, Shrewsbury, NJ 07702 (US)
Priority Data:
60/206,133 22.05.2000 US
60/259,834 05.01.2001 US
09/776,078 02.02.2001 US
Title (EN) METHOD AND APPARATUS FOR REDUCING MULTIPATH DISTORTION IN A WIRELESS LAN SYSTEM
(FR) PROCEDE ET APPAREIL DESTINES A REDUIRE LA DISTORSION MULTIVOIE DANS UN SYSTEME DE RESEAU LOCAL SANS FIL
Abstract: front page image
(EN)A spatial diversity combiner comprises a plurality of feed forward equalizers (FFEs), a decision feedback equalizer (DFE), and a tap control circuit. The plurality of FFEs receive spatially diverse replicas of an RF signal and optimally combine them. The DFE provides feedback for tap weight control and optimal equalization of the transmission channel. Symbol error is generated by a slicer circuit or by a maximum likelihood sequence estimation (MLSE) process.
(FR)Selon l'invention, un combineur de diversité spatiale comprenant des égaliseurs sans rétroaction (FEE), un égaliseur à décision rétroactive (DFE), et un circuit de commande de prise. Les FFE reçoivent des répliques à diversité spatiale d'un signal RF et les combinent de façon optimale. Le DFE fournit une rétroaction au contrôle du facteur pondération de prise et à l'égalisation optimale du canal de transmission. Une erreur de symbole est générée par un circuit limiteur ou par un procédé d'estimation séquentielle de vraisemblance maximale (MLSE).
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, 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, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)