Appendix
147
VIDEO SYSTEM OTV-SI
Observation Television system NTSC
Video signal output VBS (1.0 V
p-p
75 )
Y/C (Y: 1.0 V
p-p
75 ,
C: 0.28 V
p-p
75 )
Auto white balance The white balance can be
automatically adjusted.
Color adjustment The color tone of the image can be
adjusted.
Hue: 8 levels
Chroma: 8 levels
Red: 8 levels
Blue: 8 levels
Iris An exposure area can be selected.
Full: Normal observation
Center: When focusing on and/or
observing center area.
Image enhancement An imaging process which
electrically intensifies the boundary
of an image. The edge
enhancement level can be switched
between “None”, “Low”, “Medium”
and “High”.
Freeze Image can be frozen on the video
monitor.
Exposure level The exposure level switch adjusts
the brightness of the image.
Automatic brightness
control
The automatic brightness control
maintains the brightness of the
endoscope image.
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