APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING DATA THROUGH NON-AUDIBLE FREQUENCY, APPARATUS AND METHOD FOR PROVIDING AUDIO DATA USING NON-AUDIBLE FREQUENCY

摘要

Apparatus and a method for transmitting and receiving data through a non-audible frequency, apparatus and a method for providing audio data using a non-audible frequency are disclosed. The present invention transmits data via a non-audible frequency, obtains the data from voice signals transmitted through a non-audible frequency band, and provides audio data generated by placing data including content access information on the non-audible frequency band. As the present invention is capable of transmitting data and various information via non-audible sounds, it is possible to offer various services to a user without the user's engagement and to provide several additional services to a user who watches/listens to contents. [Reference numerals] (AA) START;(BB) END;(S910) Analyze the intensity of ambient noises;(S920) Receive voice signals transmitted through a non-audible frequency band;(S930) Obtain actual data from a voice signal corresponding to a first non-audible frequency using reference data obtained from another voice signal corresponding to a second non-audible frequency when the intensity of the voice signals corresponding to the first and second non-audible frequencies respectively are larger than the intensity of the ambient noises