ANALOG/DIGITAL CONVERTER DEVICE FOR ANALOG/DIGITAL CONVERTING OF AT LEAST ONE ANALOG LOW-FREQUENCY SIGNAL AND A METHOD FOR ANALOG/DIGITAL CONVERTING OF AT LEAST ONE ANALOG LOW-FREQUENCY SIGNAL

摘要

A METHOD IS PROVIDED FOR ANALOG/DIGITAL CONVERTING OF AT LEAST ONE ANALOG LOW-FREQUENCY SIGNAL (510) WITH AN ANALOG/DIGITAL CONVERTER WHICH CAN DETECT ONLY AN ANALOG SIGNAL WITH A FREQUENCY ABOVE A PREDETERMINED BORDER FREQUENCY VALUE, WHEREIN AT LEAST ONE ANALOG LOW-FREQUENCY SIGNAL (510) AND AT LEAST ONE ANALOG HIGH-FREQUENCY SIGNAL (201) ARE PROVIDED. AN ANALOG INTERMEDIATE SIGNAL (203) IS GENERATED FROM SAID ANALOG LOW-FREQUENCY SIGNAL(S) (510) AND SAID ANALOG HIGH-FREQUENCY SIGNAL(S) (201) AND IS INPUT TO THE ANALOG/DIGITAL CONVERTER. THE ANALOG INTERMEDIATE SIGNAL (203) IS CONVERTED INTO A DIGITAL INTERMEDIATE SIGNAL (301), AND A DIGITAL LOW-FREQUENCY SIGNAL(514) CORRESPONDING TO SAID ANALOG LOW-FREQUENCY SIGNAL (510) IS DETERMINED FROM THE DIGITAL INTERMEDIATE SIGNAL (301). (FIGURE 5)