Re: Looking for a color multiplexer or sequencer with PIP

I only know what has bitten me in the ass before. I don't know how to
evaluate a problem in advance from a spec and an oscope. I was interested in
your solution. I would have tried this with a DVR and an ATI video card. I
never think about a mux, splitter, switcher or switch anymore except when
called to service one. I almost forget they were ever around.
"Matt Ion" <soundy106@xxxxxxxxx> wrote in message
news:u4DOh.84401$DN.38848@xxxxxxxxxxxx
Roland wrote:
How much degraded signal would you get that way. It sounds like he is
using upper channels so what about tilt or impedance mismatch altering
the quality on the community channel?

I'd think degradation would be minimal... normal signal flow would be
camera -> modulator, or camera -> MUX/switcher -> modulator... at worst
this is camera -> switcher -> MUX -> modulator. Considering they're
showing what I assume to be only "infomercial"-type content on the main
screen, and no doubt relatively cheap security cameras in the PIP, I don't
think it would be an issue.

Matching/stabilizing the signal might be an issue, but there you're
getting way beyond my level of expertise.

Of course, the other solution would just be a second modulator: put the
community feed on one high-band channel, the switched cameras on another.

Personally, I think having the six switching cameras is an even bigger
nightmare if you want the tenants to be able to view any or all of them as
"who's at the door" shots... "Uh, you'll have to wait a few seconds before
I can let you in, the cameras have to cycle through until I can see
you..." Six cameras on, say, a 3-second dwell, if you JUST miss the one
you need, it's another 15-16 seconds before it comes around again. "Yeah,
I know it's a torrential downpour out there, just gimme another 10
seconds..."

We looked at an install for one highly-wired, gen-x-populated condo tower
once - since they wanted a DVR anyway, we suggested jacking it into the
building's planned internet provision for all the tenants, and set up a
web client that would let any tenants using the building's internet feed,
to select any of the public cameras they'd want to view at any given time.
Never did hear back from them, dunno what they ended up doing...


"Matt Ion" <soundy106@xxxxxxxxx> wrote in message
news:TexOh.83687$zU1.69009@xxxxxxxxxxxx

My first thought is that any basic multiplexer, even a 4-channel simplex
type, or maybe even a some quad boxes, will give you a usable PIP
display: take the output of your sequencer with the security cameras, run
it into one input of the MUX, then run the community channel into a
second input on the MUX, set the MUX to display the community channel
with the sequencer's feed in the PIP window, and feed the MUX's output to
the cable modulator.

That might be overkill, but it's a solution that SHOULD work based on
equipment I'm familiar with. You can probably pick up a suitable used
quad or MUX for relatively cheap.

Roland Moore wrote:

I am not sure, but I think PIP is a function of the TV or monitor
itself. If the TV doesn't support PIP, you'd have to inject it elsewhere
and send it as a single image to the TV.
You could do that with BVIP encoders and set a salvo in VIDOS on a
screen segment and then send it back to a channel plus unit. There might
be a simpler purpose built item to do what you want but I have never
seen it.


"Petem" <petem001@xxxxxxxxx> wrote in message
news:1175086510.422531.69040@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


I had a strange demand today,and my normal distributor cant help me...

i have a site with 7 video source,6 are cameras in 3 different
building,one is a kind of community tv channel...

they are all in color

the customer want to take the output of a sequencer,and broadcast it
over chanel 78 CATV,that side if fine and already done...

but now he want to add the 6 security cam in a PIP over the community
channel in sequence,so that he can provide to his tennant,the view of
the cam so they can see who is at the door..

anyone can help?

thanks






.

Relevant Pages

  • Re: Looking for a color multiplexer or sequencer with PIP
    ... upper channels so what about tilt or impedance mismatch altering the quality on the community channel? ... switcher -> MUX -> modulator. ... Considering they're showing what I assume to be only "infomercial"-type content on the main screen, and no doubt relatively cheap security cameras in the PIP, I don't think it would be an issue. ... Of course, the other solution would just be a second modulator: put the community feed on one high-band channel, the switched cameras on another. ...
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