| 摘要 |
PROBLEM TO BE SOLVED: To allow a user to easily recognize a fault by an existing television receiver or the like. SOLUTION: The television receivers as a master unit 1 and respective slave units 2<SB>ij</SB>display image data as television broadcasting program (Fig. 36A). The receivers radio receive the image data from cameras (not shown), detect feature amounts of the image data in each frame, and further analyze a time change of the feature amounts of the image data. When the time change of the feature amounts satisfies predetermined conditions, the displays of the receivers are switched, and the time changes of the feature amounts are all displayed on the entire screen of all the receivers (Fig. 36B). COPYRIGHT: (C)2003,JPO
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