| 摘要 |
PROBLEM TO BE SOLVED: To reduce the burden in the work for preparing a material image, by permitting the use of material image data 30 to be outputted and displayed for an audience in a presentation, without taking the difference in the data format into account. SOLUTION: A viewer 70 receives an instruction of an operator for switching the display material by an instruction input means 72; determines the data classification of the material image to be next displayed, according to the switching instruction, by a classification determination means 73; selectively activates the player corresponding to the determined classification, from the players 74 prepared according to the plurality of data classification, by an output control means 75; and outputs the material image data to a display means 76 to be projected on a screen S by a projector J. COPYRIGHT: (C)2005,JPO&NCIPI
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