Patent ID: 6779018
Filing Date: 2004-08-17
Classification: A63F,H04L

Abstract:
A certifying system comprising a server device for sending information that requires a response and a client device configured to couple to said server device via a network for inputting a response to the information, wherein:said client device comprises: an information receiving means for receiving the information and a time period obtaining program sent from said server device through said network; an outputting means for outputting the information received by said information receiving means; a response inputting means for inputting a response to the information; a time period obtaining means for obtaining a time period between the output of the information and the input of the response to the information by executing the time period obtaining program; and a time data sending means for sending time data including the time period obtained by said time period obtaining means, to said server device through said network: and said server device comprises: an information sending means for sending the time period obtaining program and the information to said information receiving means of said client device through said network; a time data receiving means for receiving the time data and the time period obtaining program sent by said time data sending means of the client device through said network; and an obtained time period certifying means for certifying the time period between the output of the information and the input of the response in said client device based on the received time period obtaining program and the time data received by said time data receiving means.