DIGITAL DATA ENCODING AND DECODING METHOD FOR TRANSMITTING/RECEIVING DATA THROUGH SOUND WAVE AND DIGITAL DATA TRANSCEIVER USING METHOD THEREOF

摘要

PURPOSE: A digital data encoding and decoding method for transmitting/receiving data through sound wave and the digital data transceiver using the method thereof are provided to perform a short distance communication by using the sound wave being used in music at present on the basis of Frequency Shift Keying method. CONSTITUTION: A mapping table that a sound height combination corresponds to a unit value of digital data is produced. Digital data for transmitting is converted into sound height combination rows corresponding to the mapping table, produced the combination sound wave having the frequency of each sound height and then transmitted. A row of the sound height combination is extracted from the sound wave generated from a transmitting device. The extracted respective sound height combination is converted into digital data constructed by digital data unit values corresponding to the mapping table.