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. 09, 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 Marseilee), Marseille Cedex, FR;
Abstract
A digital processing device is at the input of a radio frequency receiver chain, suited to a transmission system using a direct sequence spectrum spread, comprising analog-to-digital conversion means (ADC) performing an undersampling of a signal received, resulting in an overlapping of the wanted signal by the transmission channel noise, demodulation means connected to the output of the ADC, a low pass filter connected at the output of the demodulation means and a filter matched to the spreading code used, wherein the ADC includes a comparator capable of comparing the amplitude of the undersampled signal to a reference in order to carry out a quantizing of the 1-bit signal, said comparator bringing about the creation of a quantizing noise, and including an additional filtering unit arranged between the low pass filter and the matched filter, implementing a multi-noise, stochastic matched filtering operation.