Re: Looking for a color multiplexer or sequencer with PIP

["Roland" <roland@xxxxxxxxxxxx>]

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
>>>>>
>>>>
>>>>
>>