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Old 12-02-2006, 02:24 PM
lubot77
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Default Video Mux using FPGA

I do have a interesting project. I am planing to wire my house with duplex
multimode fiber. I would like to send from a central location of the house
multiple broadcast video and audio signals. The video should be either 10 or
12bit digital stream.
With the help of a FPGA we should multiplex I would say up to 5 digital
parallel video streams(each around 200Mbs, with 16M clk and 3Mbs for four
audio channels). The mux out should be 16 or 20bit data stream.


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Old 12-02-2006, 03:37 PM
PeteS
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Default Re: Video Mux using FPGA

lubot77 wrote:
> I do have a interesting project. I am planing to wire my house with duplex
> multimode fiber. I would like to send from a central location of the house
> multiple broadcast video and audio signals. The video should be either 10 or
> 12bit digital stream.
> With the help of a FPGA we should multiplex I would say up to 5 digital
> parallel video streams(each around 200Mbs, with 16M clk and 3Mbs for four
> audio channels). The mux out should be 16 or 20bit data stream.
>
>


Are all the streams synchronous to each other? If not you'll have to
synchronise the streams with an overhead channel (probably).

Cheers

PeteS
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Old 12-02-2006, 06:52 PM
lubot77
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Default Re: Video Mux using FPGA

They will be synchronous to each other.
I am planning to use four either 10 or 12 bit video ADC's, and sixteen audio
ADC's .
The 20 bit data out of the FPGA will feed the Agilent chip set that will
drive the laser.
On the receiver side the signal will be demuxed from the FPGA and will feed
Video and Audio DAC's.
I do not have a big experience with programmable devices, so I was wondering
if there are any standard engineering techniques and tricks to do that.

Thanks


"PeteS" <[email protected]> wrote in message
news:Ucgch.3131$[email protected]..
> lubot77 wrote:
>> I do have a interesting project. I am planing to wire my house with
>> duplex multimode fiber. I would like to send from a central location of
>> the house multiple broadcast video and audio signals. The video should be
>> either 10 or 12bit digital stream.
>> With the help of a FPGA we should multiplex I would say up to 5 digital
>> parallel video streams(each around 200Mbs, with 16M clk and 3Mbs for four
>> audio channels). The mux out should be 16 or 20bit data stream.

>
> Are all the streams synchronous to each other? If not you'll have to
> synchronise the streams with an overhead channel (probably).
>
> Cheers
>
> PeteS



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  #4 (permalink)  
Old 12-03-2006, 07:57 PM
fpgabuilder
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Default Re: Video Mux using FPGA

The project sounds interesting but why send raw video? Isn't it easier
if it is compressed and then sent over a low bandwidth wifi network?


lubot77 wrote:
> I do have a interesting project. I am planing to wire my house with duplex
> multimode fiber. I would like to send from a central location of the house
> multiple broadcast video and audio signals. The video should be either 10 or
> 12bit digital stream.
> With the help of a FPGA we should multiplex I would say up to 5 digital
> parallel video streams(each around 200Mbs, with 16M clk and 3Mbs for four
> audio channels). The mux out should be 16 or 20bit data stream.


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  #5 (permalink)  
Old 12-04-2006, 01:11 PM
Symon
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Default Re: Video Mux using FPGA

"fpgabuilder" <[email protected]> wrote in message
news:[email protected] ps.com...
> The project sounds interesting but why send raw video? Isn't it easier
> if it is compressed and then sent over a low bandwidth wifi network?
>
>
> lubot77 wrote:
>> I do have a interesting project. I am planing to wire my house with
>> duplex
>> multimode fiber. I would like to send from a central location of the
>> house
>> multiple broadcast video and audio signals. The video should be either 10
>> or
>> 12bit digital stream.
>> With the help of a FPGA we should multiplex I would say up to 5 digital
>> parallel video streams(each around 200Mbs, with 16M clk and 3Mbs for four
>> audio channels). The mux out should be 16 or 20bit data stream.

>

Indeed, MPEG-4 HDTV is 20 Mbps tops. www.videolan.org & Cat-5e would very
easy and cheap.
HTH, Syms.


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  #6 (permalink)  
Old 12-11-2006, 09:22 AM
Christian Kirschenlohr
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Default Re: Video Mux using FPGA

lubot77 schrieb:
> I do have a interesting project. I am planing to wire my house with duplex
> multimode fiber. I would like to send from a central location of the house
> multiple broadcast video and audio signals. The video should be either 10 or
> 12bit digital stream.
> With the help of a FPGA we should multiplex I would say up to 5 digital
> parallel video streams(each around 200Mbs, with 16M clk and 3Mbs for four
> audio channels). The mux out should be 16 or 20bit data stream.


Sounds like a Version of our GLINK for SDI-Video and without Keyboard ;-)

http://www.bgmbh.de/cnt/produkte/GLINK2.htm

Christian
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