SHARED WHITE BOARD HISTORY REPRODUCING METHOD, SHARED WHITE BOARD SYSTEM, CLIENT, PROGRAM AND RECORDING MEDIUM

摘要

PPROBLEM TO BE SOLVED: To provide a method for reproducing an operation performed on a white board during a conference or a class and for realizing synchronous reproduction with a video image. PSOLUTION: A server 1 and a client 2 are mutually connected through a network 3 and they constitute a shared white board system. When information written on the white board is stored as history, a data management part 22 of the client 2 stores a snapshot on the applicable white board in a file, and stores the operation performed on the white board in a history file as history with time information. In reproducing history, the data management part 22 reads the history file and the snapshot, reads ID and attribute information of an object from the snapshot and plots the object. PCOPYRIGHT: (C)2005,JPO&NCIPI