Joint ownership white board past record reappearance method, the joint ownership white board system, in the joint ownership white board

摘要

PROBLEM TO BE SOLVED: To reproduce operations performed on a white board and also to attain synchronous reproduction with a video image during a conference or in class.;SOLUTION: The respective operations performed on the white board are stored in history as a file with elapsed time since the history has been started to store on a client 2 or on the server 1 which access the white board. When time difference between elapsed time corresponding to the respective operations and elapsed time corresponding to the previous operations is longer than preset time t_lim, the respective operation recorded in the file as the history are reproduced at a point of time when the time t_lim elapses from time when the previous operations of the operations are reproduced and when the time difference is not longer than the preset time t_lim, the respective operations are reproduced at a point when the time difference elapses from the time when the previous operations of the operations are reproduced.;COPYRIGHT: (C)2007,JPO&INPIT