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Hitachi Kokusai Electric Inc
Tokyo Japan
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HV-D27A/HV-D37A
Color Camera
Tentative
Specification
(
10/17
)
6-2. Long integration mode
(1) Field mode (SHUTTER : EXT TRIG, EXT TRIG : MODE2, CCD MODE : FIELD)
The trigger pulse width and the timing of external trigger pulse against the camera SYNC
control the exposure time. One field of the picture is obtained at first ODD field after the back
edge of external trigger pulse.
(2) Frame mode (SHUTTER : EXT TRIG, EXT TRIG : MODE1, CCD MODE : FRAME)
The trigger pulse width and the timing of external trigger pulse against the camera SYNC
control the exposure time. One frame of the picture is obtained at first ODD field after the back
edge of external trigger pulse.
EXT TRIG
V.SYNC
READOUT PULSE
VIDEO OUT
WE PULSE
More than 2 fields
*Possible to change polarity
*Possible to change polarity
EVENODDEVENODDEVEN ODD
EXPOSURE TIME
EVENODDEVEN ODD EVENODD
TRIG PULSE WIDTH - 1V
=< EXPOSURE TIME
<= TRIG PULSE WIDTH +
2 to 3H (NTSC) , 2.5 to 3.5H (PAL)
EVENODD
EVENODD ODD
Sync reset (2 to 3H delay (NTSC), 2.5 to 3.5H delay (PAL))
EXT TRIG
V.SYNC
EVEN READOUT
PULSE
ODD READOUT
PULSE
VIDEO OUT
WE PULSE
More than 2 fields
*Possible to change polarity
*Possible to change polarity
ODD FIELD
EVEN FIELD
EXPOSURE
TIME
EVENODD EVENODD EVENODD EVENODD EVENODD ODD
EVENODD EVENODD EVENODD EVENODD EVENODD ODD
TRIG PULSE WIDTH - 2V
=< EXPOSURE TIME
<= TRIG PULSE WIDTH+
2 to 3H (NTSC), 2.5 to 3.5H (PAL)
Sync reset (2 to 3H delay (NTSC), 2.5 to 3.5H delay)