COMMUNICATION SYSTEM AND TRANSFER METHOD THEREOF

摘要

A communication system is provided. A receiver receives a plurality of audio signals, wherein a frequency of each of the audio signals is selected from a frequency group formed by at least three frequencies. A signal detector coupled to the receiver is configured to obtain the frequency of each of the audio signals. A processor coupled to the signal detector is configured to convert the frequency of each of the audio signals into a digital signal having a first logic level or a second logic level. Two adjacent audio signals of the audio signals have different frequencies, and at least one frequency of the frequency group is used to dynamically represent the first logic level or the second logic level.

主权项

1. A communication system, comprising:
a receiving apparatus, comprising:
a receiver, receiving a plurality of audio signals, wherein a frequency of each of the audio signals is selected from a frequency group formed by at least three frequencies;a signal detector coupled to the receiver, obtaining the frequency of each of the audio signals; anda first processor coupled to the signal detector, converting the frequency of each of the audio signals into a digital signal having a first logic level or a second logic level,wherein two adjacent audio signals of the audio signals have different frequencies, and at least one frequency of the frequency group is used to dynamically represent the first logic level or the second logic level.