METHODE DE DEMODULATION DE SIGNAL ET EQUIPEMENT ASSOCIE

摘要

The device (2) has a sampling clock signal generation module (4) for receiving a sinusoidal signal. The module includes a characteristic point detection device for detecting a characteristic point of cycles of the sinusoidal signal and for delivering a sampling clock signal that comprises an active face. The active face is approximately in phase with minimum or maximum value of the sinusoidal signal. An analog-to-digital converter (9) is utilized for sampling an amplitude modulated sinusoidal signal with active faces of the sampling clock signal. Independent claims are also included for the following: (1) a radio frequency identification reader (2) a radio frequency identification card (3) a method for reception of an amplitude modulated sinusoidal signal.