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Software reference CDU
34
i--SPEED
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Calibrate Sensor Control
In common with all CMOS sensor chips, the Olympus
i--SPEED
sensor requires a calibration system to remove fixed pattern noise.
The Olympus
i--SPEED
provides an off--chip calibration system. To
calibrate the sensor, the user must press the “Calibrate” button and
then completely cover the lens to exclude all light. An on--screen
message allows the user a brief time to do this. The calibration then
occurs and the message is removed once this is complete. Further
discussion may be found in
Chapter 7 “Understanding the Olympus
i--SPEED
”
.
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Trigger Edge Control
This control sets the trigger detection system to wait for a rising
edge or a falling edge on the trigger input connection.
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Trigger Position Control
This control sets the length of the trigger delay, so that the trigger
point will appear at a user--settable position in the recorded video
clip. With the trigger position at 0%, the trigger delay is equal to the
length of the circular buffer and the trigger point will appear at the
beginning of the video clip. With the trigger position at 100%, the
trigger counter is set to zero and the recording will stop immediately
the trigger is activated, thus the trigger point will appear at the end
of the video clip. There are a number of options available in
between 0% and 100%.