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Machine translation
1. (WO2005116679) AN ARRANGEMENT FOR A RECEIVING UNIT AND A METHOD FOR CALIBRATING SAID RECEIVING UNIT
Latest bibliographic data on file with the International Bureau   

Considered void 2006-04-03 00:00:00.0


Pub. No.:    WO/2005/116679    International Application No.:    PCT/NO2004/000411
Publication Date: 08.12.2005 International Filing Date: 30.12.2004
IPC:
G01S 3/02 (2006.01), G01S 3/04 (2006.01), G01S 3/48 (2006.01), G01S 5/00 (2006.01), G01S 5/04 (2006.01), G01S 7/00 (2006.01), G01S 7/02 (2006.01), H01Q 1/00 (2006.01), H01Q 1/02 (2006.01), H01Q 1/28 (2006.01), H01Q 15/14 (2006.01), H01Q 21/00 (2006.01), H01Q 9/04 (2006.01), H03M 1/12 (2006.01), H04B 1/28 (2006.01)
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (publ) [SE/SE]; S-164 83 Stockholm (SE) (For All Designated States Except US).
HJELMSTAD, Jens, Fredrik [NO/NO]; (NO) (For US Only)
Inventors: HJELMSTAD, Jens, Fredrik; (NO)
Agent: OSLO PATENTKONTOR AS; P.O. Box 7007M, N-0306 Oslo (NO)
Priority Data:
20042234 28.05.2004 NO
Title (EN) AN ARRANGEMENT FOR A RECEIVING UNIT AND A METHOD FOR CALIBRATING SAID RECEIVING UNIT
(FR) DISPOSITIF POUR UNE UNITE DE RECEPTION ET PROCEDE DE CALIBRAGE DE CETTE UNITE DE RECEPTION
Abstract: front page image
(EN)An arrangement for calibrating the receiving channels in a direction-finding system, each receiving channel including a superheterodyne receiver with a first and a second local oscillator, said arrangement including a calibration chain with a baseband oscillator and first and second calibration mixers, said first calibration mixer being arranged to receive signals from said baseband oscillator and the second local oscillator and deliver the resultant intermediate signal to the second calibration mixer where it is mixed with the signal from the first local oscillator. The resultant calibration signal is introduced into each receiving chain at the entrance thereof.
(FR)L'invention porte sur un dispositif de calibrage de canaux de réception dans un système de radiogoniométrie. Chaque canal de réception comprend un récepteur superhétérodyne équipé d'un premier et d'un second oscillateur local. Ce dispositif comprend une chaîne de calibrage dotée d'un oscillateur de bande de base et d'un premier et second mélangeur de calibrage, le premier mélangeur de calibrage étant conçu pour recevoir des signaux de l'oscillateur de bande de base et du second oscillateur local, et pour envoyer le signal intermédiaire obtenu au second mélangeur de calibrage où il est mélangé au signal provenant du premier oscillateur local. Le signal de calibrage obtenu est introduit dans chaque chaîne de réception au niveau de l'entrée.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, 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, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, 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, HU, IE, IS, IT, LT, LU, MC, NL, 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: English (EN)
Filing Language: English (EN)