| 摘要 |
PROBLEM TO BE SOLVED: To increase the transferring speed of audio data from a personal computer. SOLUTION: Audio data transferred from a personal computer 16 in units of a prescribed data amount are sequentially written by block units into an empty area of a flash memory 5, unnecessary audio data already written in the flash memory 5 are deleted by block units after completion of the writing, and writing completion notification is transmitted to the personal computer before at least the unnecessary audio data are completed to be deleted by block units. Consequently, since the deletion and the transmission of the writing completion notification of the audio data can be overlapped, the transferring speed can be further increased by performing a series of processing from writing and deleting up to transmitting the completion notification of the writing in a short period of time. COPYRIGHT: (C)2004,JPO&NCIPI
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