DATA PROCESSOR, SYSTEM THEREFOR, METHOD THEREFOR, PROGRAM THEREFOR, AND RECORDING MEDIUM WITH ITS PROGRAM RECORDED THEREIN

摘要

PROBLEM TO BE SOLVED: To provide a data transmission/reception system which properly calculates the effective communication rate of a network.;SOLUTION: Dummy packets for calculating the effective communication rate of a network 200 are transmitted from a server device 200 to a terminal device 400 through the network 200 at timing when data packets having data are not transmitted, and at a transmission rate equal to or higher than that of data packets. The communication rate calculation means 422 of the terminal device 400 calculates the effective communication rate of the network 200 on the basis of the quantity of missing dummy packet in the network 200. The server device 300 sets a transmission rate of data packets on the basis of the effective communication rate and transmits data packets to the terminal device 400 through the network 200 at this transmission rate.;COPYRIGHT: (C)2005,JPO&NCIPI