ELECTRONIC CONFERENCE SYSTEM, CONFERENCE SERVER, AND PARTICIPANT COMPUTER

摘要

PURPOSE:To display a picture on respective delivery destinatons at the same display start timing by displaying the picture suitably for the resolution of each computer of the distribution destination independently of the resolution of the distribution origin. CONSTITUTION:A conference server 2 stores display resolutions of participant computers (PC) 1a to 2e and converts electronic material data received from the transmission side PC into maternal data of respective display resolutions and generates difference data between material data of the lowest display resolution and second lowest display resolution out of obtained material data and successively generates difference data in the same manner and gives attribute data indicating the distinction between material data and difference data and the display resolution to transmit the material data or the lowest display resolution ana each difference data. Each PC displays received material data of the lowest display resolution based on its attribute data and adds successively received difference data to already displayed material data based on attribute data to convert the material data to material data or resolutions designated by attribute data and displays these converted material data.