| 摘要 |
PURPOSE: A method for dispersing communication load of a karaoke player is provided to file downloading by downloading the file from other karaoke players. CONSTITUTION: A karaoke player checks a file existence to other adjacent players, and request the file transfer(S220). The adjacency karaoke checks the existence of the same size file in the same route(S230). If the same size file in the same route exists, the adjacent karaoke player decides the existence of a previously calculated value about the file(S240). If the calculated value exists, the adjacent karaoke player confirms the calculated value(S250). If the calculated value is same, the adjacent karaoke player transmits the file confirmation message(S260).
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