| 摘要 |
PROBLEM TO BE SOLVED: To provide portable telephone set that is provided with the new function of a game machine. SOLUTION: A controller 14 sequentially reads music tone data from a musical score memory 13, outputs melody data in the music data sequentially to a sound source circuit 15, and outputs a pulse signal instructing production of a rhythm tone to a rhythm sound source 16, according to rhythm tone data included in the music data. Thus, a loudspeaker 21 generates melody tone and the rhythmic tones of the music. A user of a portable telephone set K shakes the portable telephone set K such as in the manner a maraca in time to the music. A vibration detection circuit 24 outputs a pulse signal to a rhythm difference detection circuit 25 in time with the shaking. The rhythm difference detection circuit 25 sequentially detects the time difference between an output pulse signal from the vibration detection circuit 24 and a pulse signal for the rhythm tone outputted form the controller 14 and sequentially outputs the time difference data to a CPU 1. |
