Brevet : EP1222748 - SYSTEME D'ACQUISITION DE SIGNAUX POUR RECEPTEUR A SPECTRE ETALE
Titre
SYSTEME D'ACQUISITION DE SIGNAUX POUR RECEPTEUR A SPECTRE ETALE
N° et date de publication de la demande
EP1222748 - 17/07/2002
Type de la demande
A1
N° et date de dépôt
EP00969580.0 - 12/10/2000
N° et date de priorité
FI992210 - 13/10/1999 ; FI20002154 - 29/09/2000
Classification CIB
Classification CPC
Famille de brevets
DE60036010T2 ; WO0128116A1 ; CA2385111A1 ; ATE370555T1 ; FI20002154A ; JP2003511955A ; US6909739B1 ; AU7925200A ; EP1222748A1
Abrégé
A device for detecting a demodulated signal received by a spread spectrum receiver and converted into digital samples. The device is characterized by a matched filter for calculating the correlation between an incoming signal and at least one reference signal, an oscillator for generating a sampling frequency, and a sampling circuit for re-sampling the demodulated digital sample signal at the sampling frequency, which is such that the timing of samples of the references signals of the matched filter corresponds to the timing of a sample signal going from the sampling circuit to the matched filter. The device also includes a multiplier in which the sample signal is multiplied by a carrier replica generated locally before the sampling circuit or thereafter, to remove the carrier from the sample signal.
INTERVENANTS
Déposant
U NAV MICROELECTRONICS CORP (U-NAV MICROELECTRONICS CORPORATION) - US
Titulaire
U-NAV Microelectronics Corporatio
Inventeur
EEROLA VILLE (EEROLA, VILLE) - FI
RITONIEMI TAPANI (RITONIEMI, TAPANI) - FI
Mandataire
KOLSTER OY AB - ISO ROOBERTINKATU 23 P.O. BOX 148 00121 HELSINKI - FI
STATUT EN FRANCE : Brevet EP sans effet
Délivrance
15/08/2007
Non remise de traduction du brevet
11/04/2008 (BOPI 2008-15)