The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2010
Filed:
May. 04, 2006
Benoît Durand, Rousset, FR;
Christophe Fraschini, La Garde, FR;
Philippe Courmontagne, Belgentier, FR;
Anne Collard Bovy, Bouc Bel Air, FR;
Stephane Meillere, Nedules, FR;
Benoît Durand, Rousset, FR;
Christophe Fraschini, La Garde, FR;
Philippe Courmontagne, Belgentier, FR;
Anne Collard Bovy, Bouc Bel Air, FR;
Stephane Meillere, Nedules, FR;
STMicroelectronics (Rousset) SAS, Rousset, FR;
Universite de Provence (AIX Marseille I), Marseille Cedex, FR;
Abstract
A digital processing device for a modulated signal, arranged at the input of a radio frequency receiver chain, suited in particular to a transmission system a direct sequence spread spectrum operation, comprising an analog-to-digital converter performing undersampling of the signal received, leading to an overlapping of the frequency range of the undersampled wanted signal by the frequency range of an interfering signal, demodulation means connected at the output of the analog-to-digital converter in order to bring the undersampled wanted signal back to baseband, a low pass filter connected at the output of the demodulation means and a filter matched to the spreading code used, and an additional filtering unit arranged between the low pass filter and the matched filter, for implementing a stochastic matched filtering operation to improve the signal-to-noise ratio at the input of the matched filter.