Toshiba IK-TF9U - Manual (Page 28)

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( 5 ) RR (Reset restart)
Input of an external reset-restart signal (CC4 of the DIGITAL terminal: External VD input) permits one screen
of information to be output at an arbitrary timing.
(5. 1) Long Term Exposure
When a sufficient sensitivity is not obtained with the normal operation conditions or capturing the trial of a
moving subject is desired, the reset-restart function allows high-sensitivity images by extending the exposure
time. To achieve this, please input from an external source a VD signal that has an expanded VD pulse and VD
pulse interval.
(5. 2) Input Timing Chart Example
External HD IN
External VD IN
(Internal VD)
About 1H
V reset
Exposure period
External VD interval: more than 1 frame
Exposure period Exposure period
About 1H
V reset
1 frame= 1592H (Partial scanning OFF)
1270H (Partial scanning 25fps)
1060H (Partial scanning 30fps)
910H (Partial scanning 35fps)
774H (Partial scanning 40fps)
706H (Partial scanning 45fps)
636H (Partial scanning 50fps)
RGB data
(video interval image)
FVAL
LVAL,
DVAL
1 frame