Invention Grant
- Patent Title: Digital receiver device based on an input comparator
- Patent Title (中): 基于输入比较器的数字接收机设备
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Application No.: US11429674Application Date: 2006-05-04
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Publication No.: US07660342B2Publication Date: 2010-02-09
- Inventor: Benoît Durand , Christophe Fraschini , Philippe Courmontagne , Anne Collard Bovy , Stephane Meillere
- Applicant: Benoît Durand , Christophe Fraschini , Philippe Courmontagne , Anne Collard Bovy , Stephane Meillere
- Applicant Address: FR Rousset FR Marseille Cedex
- Assignee: STMicroelectronics (Rousset) SAS,Universite de Provence (AIX Marseilee)
- Current Assignee: STMicroelectronics (Rousset) SAS,Universite de Provence (AIX Marseilee)
- Current Assignee Address: FR Rousset FR Marseille Cedex
- Agency: Graybeal Jackson LLP
- Agent Kevin D. Jablonski
- Priority: FR0504588 20050504; FR0504589 20050504; FR0504591 20050504
- Main IPC: H04B1/00
- IPC: H04B1/00

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.
Public/Granted literature
- US20070098056A1 Digital receiver device based on an input comparator Public/Granted day:2007-05-03
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