Welcome to the
If you need to handle
Although PIP and Quad units are technically display multiplexers, this terminoligy is normally reserved for larger capacity units capable of accepting eight, sixteen, or even more cameras.
When multiplexers were first introduced some years ago, it was not unusual to find a unit designed specifically as a display only multiplexer, capable of splitting the screen up into various mosaics of images.
This would give the option of displaying a number of cameras; 4, 6, 8, 10, 12 or 16 images in various size and layout configurations, which all sounds very promising, until you realise that sixteen images compressed onto a 14 high resolution monitor, can provide some difficulties when it comes to identifying exactly what is going on in an individual picture (this problem still holds true for many modern Town Centre camera schemes, where many incidents tend to be missed, simply because the images are too small to observe properly).
The solution of course is to use a much larger monitor, but then the cost shoots up significantly, as indeed does the requirement for available space.
One particular technical problem of note, is that if you leave a mosaic on screen for long periods, it will very quickly burn in to a conventional CRT monitor tube.
The solution of course, is to use an LCD flatscreen display, but then the downside is the substantial increase in
Nowadays, almost all system multiplexers are designed and built as display and record devices, capable of
IMPORTANT: No material may be reproduced, copied or redistributed from this site,
© doktorjon.co.uk 2004 - 2008