Re: Looking for a color multiplexer or sequencer with PIP

[Matt Ion <soundy106@xxxxxxxxx>]

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
>>>>
>>>
>>>
>