| 摘要 |
PROBLEM TO BE SOLVED: To prevent a service start time from being delayed while storing much more service providing information by decoding and storing compressed and stored service providing information and compressing again the information whose utility rate is low among the stored service providing information sets. SOLUTION: For example, in the case of a communication type karaoke sing along equipment 50, a karaoke terminal equipment 1 is operated under the control of a CPU 4, karaoke playing data and compressed and decoded programs of karaoke playing data received from a host computer 31 via a public line network 21 are stored in a hard disk unit 6. The hard disk unit 6 stores compressed music data files, compressed data registration tables, decoded individual data files and compressed and decoded programs. Then the CPU 4 applies compression processing to data whose utility is low among the karaoke playing data stored in decoded individual data files in the hard disk unit 6 and stores the data compressed again as compressed music data. |
