DVC DigitEyes Series, Technical Manual, Page: 23 / 66

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5.5.2.1 Asynchronous Reset and Shutter:
The ASYNCHRONOUS RESET option has been found to work successfully with Shutter option.
5.5.2.2 Video Amplitude in Asynchronous Reset Mode:
The readout following the interrupted field will have a video amplitude that is proportionally lower
than the standard video amplitude, due to a shorter integration period.
5.5.2.3 Multiple Resets per Field (higher “field” rate):
If multiple resets occur within a single field period (1/60 sec), the camera outputs a sequence of
partial, ODD fields with reduced video amplitudes. A standard monitor will be unable to lock to
this kind of video signal ! A frame grabber may be required to acquire and display this sequence
of images. The effect of this operation will be to generate partial fields at a fast "rep rate". This
mode may be useful for some Motion Analysis applications.
5.5.3 Genlock Mode:
The camera operates in the standard mode until a CSYNC or ANALOG VIDEO signal is fed into
the genlock input (Note: this input is available on cameras specially modified for the GENLOCK
option). Within a few milli-seconds the Phase-Locked Loop within the camera "locks" to the
incoming CSYNC or ANALOG VIDEO signal. Both the Digital and Analog Video outputs are now
locked to the incoming signal.
This mode is sometimes used to lock several cameras together. One approach to this is to use
one camera as a "master" source of VIDEO and to lock several "slave" cameras to the master
VIDEO. Another approach is to operate all cameras as "slaves" to an external source of CSYNC
or VIDEO. Both approaches have been used successfully.
5.5.3.1 Genlock and Shutter:
The GENLOCK option has been found to work successfully with the Shutter option.