Disclosed is an MPEG portable sound reproducing system and a method for
reproducing sound data compressed using the MPEG method. The inventive
system includes power supply means for supplying operational power to the
system, the power supply means being realized through a secondary
battery; power processing means for rectifying power supplied from the
power supply means to stable voltage and current; information display
means for displaying numbers and combinations of letters related to
operational states of the system; control means for controlling all
operations of converting and reproducing sound data compressed using the
MPEG method; data storage means for storing MPEG-compressed sound data in
a designated address according to signals output from the control means;
information selecting means for selecting general operations to
reproduce, download, and apply selected sound data stored in the data
storage means; sound reproducing means for converting sound data stored
in the data storage means into a format audible to users according to
signals output from the control means; and transmitting/receiving means
for transmitting and receiving sound data and program data from external
devices.