| 摘要 |
PROBLEM TO BE SOLVED: To provide an image display device that can improve operability when changing a frequency domain for visualizing an electric wave discharging source. SOLUTION: A filtering area in a spectrum waveform display screen is operated on a screen by a user interface used for GUI. When the frequency domain selected from the filtering area by the operation on this screen, a composite image after changing the frequency domain is displayed on a discharging source display screen. COPYRIGHT: (C)2011,JPO&INPIT
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