Apparatus and method for demodulating multi-level signal

Details Apparatus and method for demodulating multi-level signal Apparatus and method for demodulating multi-level signal

H - Electricity

04

L

H04L 27/14 (2006.01)

Patent

CA 2207818

A multi-level signal demodulation apparatus includes an A/D converter for converting an input analog signal of which the amplitude is modulated by a multi-level to a digital signal, a memory for storing the digital signal, a threshold generator for calculating plural threshold levels in accordance with the digital signal which is stored in the memory, and a demodulator for demodulating the digital signal which is obtained by the A/D converter in accordance with the plural threshold levels to a signal according to a level of the digital signal.

L'invention concerne un appareil de démodulation d'un signal multiniveau, qui comporte un convertisseur analogique/numérique conçu pour convertir un signal analogique d'entrée dont l'amplitude est modulée par un signal multiniveau de sorte qu'un signal numérique soit produit, une mémoire pour la mémorisation du signal numérique, un générateur de seuil conçu pour calculer plusieurs niveaux de seuil en fonction du signal numérique rangé dans la mémoire et un démodulateur conçu pour démoduler le signal numérique produit par le convertisseur analogique/numérique en fonction des niveaux de seuil et produire un signal selon le niveau du signal numérique.

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