| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress decreases in speed of distribution of image data even when image data where accesses are expected to concentrate with disclosed timing are distributed to a portable telephone. <P>SOLUTION: In image conversion servers 50-1 and 50-2 which have a para access server 90 that pretends to be a portable telephone of a model determined on the basis of model information on the portable telephone corresponding to image data stored in a cache server 30 and access undisclosed image data registered to an image database 60, and convert the image data into a form in which they can be displayed to the portable telephone, the image data accessed by the para access server 90 are converted into the form which can be displayed by the portable telephone of the model which the para access server 90 pretends to be and the image data converted by the image conversion servers 50-1 and 50-2 are stored in the cache server 30 every model of the portable telephone as image data for the model of the portable telephone the para access server 90 pretends to be. <P>COPYRIGHT: (C)2008,JPO&INPIT |
