Table of Contents
Advertisement
Various settings (continued)
Display a playback image in fi eld
Some images may appear shaking because this recorder
records images frame by frame. In this case, you can curb
shaking images using this function.
1 Select whether or not to display images fi eld by
Step
fi eld.
When you check the box, the fi eld display is enabled.
•
[Enable]: Images are displayed fi eld by fi eld.
[Disable]: Images are not displayed fi eld by fi eld.
Image originality check play
You can detect images that were recorded by other recorder
or images that were altered after recorded by this recorder.
When such images are detected, a message saying "Data
that may have been altered or recorded by other recorder
were found." appears.
1 Select whether to enable or disable the image
Step
originality check play.
When you check the box, the image originality check
•
play is enabled.
[ E n a b l e ] : T h e r e c o r d e r p e r f o r m s t h e i m a g e
originality check during playback. Upon detection
of images recorded by other recorder or image that
have been altered, it issues warning.
[Disable]: The recorder does not perform the image
originality check.
2 Select the device you want to subject to the
Step
check and then start playback. (
The recorder performs the check on the image being
•
displayed only. Therefore, for accurate detection,
play back images in the single screen display mode.
Notice
•
Because this check may interrupt recording or
playback, disable this option normally.
•
The recorder also issues warning when it plays back
recorded data that have been damaged by some
cause.
•
When you perform complicated playback operations
using the shuttle ring during the alternation check, a
warning message saying "Data that may have been
altered or recorded by other recorder were found."
may appear. Perform the alteration check during
normal playback or playback at varied playback rates.
•
When problems are detected in more than one image
from different cameras simultaneously, all the numbers
of those cameras may not be shown by a warning.
•
In the image originality check in the split screen display
mode, if a large number of alterations are detected
in the images of the cameras, all the numbers of
those cameras may not be shown by a warning. For
accurate detection, play back images in the single
screen display mode.
112
•
Even when the recorder detects continuous or multiple
altered images, the warning display appears only
once. To enable the warning display again, stop
playback and then start it again.
You can disable playback of data that were recorded before
the designated period of time.
1 Select whether or not to use the auto expiration
Step
on the specifi ed date function.
When you check the box, the auto expiration on the
•
specifi ed date function is enabled.
2 W h e n y o u e n a b l e d t h i s o p t i o n i n s t e p 1 ,
Step
designate the period of time during which
playback is possible.
The data recorded before the designated period from
•
the present time cannot be played back anymore.
This means that you can play back only data
recorded for the designated period preceding the
present time.
Tips
•
Since data are managed in 64 MB units, the period
where playback is possible may be shorter than
page 70)
the designated auto expiration setting. When the
recording rate is set to a low value, the period where
playback is possible tends to become especially short.
Setup menu
Auto expiration on the specifi ed date
Example
When you set the period to [2 days]:
2 days
Playback impossible
Present time
Advertisement
Table of Contents
Troubleshooting
