| 摘要 |
PROBLEM TO BE SOLVED: To distribute musical signals being played back by the portable music player possessed by a passenger in a train to other passengers in the train with sound quality that can be appreciated, for example. SOLUTION: In portable music players 102 and 104, musical signals being played back, a device ID which specifies each player and a music ID which specifies the music signals being played back are outputted as radio signals. The radio signals are collected by input terminals 110 which are placed everywhere in the train. The collected musical signals are switched through a distribution server 100 in the train and supplied to output terminals 120 provided at the seats or on the straps. When the player 102 is moved within the train and located at the zone belongs to another input terminal 110, the switching condition is changed in accordance with the new situation. COPYRIGHT: (C)2007,JPO&INPIT
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