Encoding apparatus and method for encoding sound code, decoding apparatus and method for decoding the sound code

摘要

A decoding apparatus includes a sound code input unit that receives a sound code output from an encoding apparatus through a sound wave reception device; a frame division unit that divides the sound code depending on a predetermined time interval to generate a plurality of frames; a frequency identification unit that identifies a frequency corresponding to each of the plurality of the frames through frequency analysis for each of the plurality of the frames; and an information generation unit that determines a frequency band, to which each of the identified frequencies corresponds, from an audible sound wave frequency band and a non-audible sound wave frequency band, and a plurality of partial information based on the frequency band and each of the identified frequencies, and generates information corresponding to the sound code based on the plurality of the partial information.

主权项

1. A decoding apparatus for generating information by decoding a sound code, the decoding apparatus comprising:
a sound code input unit configured to receive a sound code output from an encoding apparatus through a sound wave reception device; a frame division unit configured to divide the sound code depending on a predetermined time interval to generate a plurality of frames; a frequency identification unit configured to identify a frequency corresponding to each of the plurality of the frames through frequency analysis for each of the plurality of the frames; and an information generation unit configured to determine a frequency band, to which each of the identified frequencies corresponds, from an audible sound wave frequency band and a non-audible sound wave frequency band, and a plurality of partial information based on the frequency band and each of the identified frequencies, and generate information corresponding to the sound code based on the plurality of the partial information, wherein when the determined plurality of partial information include a preset partial information, the information generation unit is further configured to identically interpret the preset partial information with at least one of the plurality of partial information.