The way it is usually done mimics european TEXT-TV or closed
caption (for NTSC).

In europe (PAL) lines 7-22 of the video signal are used.
You need a video sync decoder, a PIC and a video mux.
Wait for VSync end, count 3/4 hsyncs (odd vs even field), in one
line's time (up to hsync) mux to a PIC output and send serial data
(synchronous)
Usually there are 45 bytes pr line (TEXT-TV) that is 1/3 of a
kilobyte pr. frame.

Same procedure the other way.

The standards should be somewhere on the net.
There are nice commercial RS232-video-RS232 available.
Try my old friend Gilbert (gilbert@quive.no)


Kent


> The archives seem broken so I'll post my question here.
>
> Is it all possible to insert a digital signal into a video signal for
> wireless transmission with one of those wireless video transmitters? The
> reason im asking is I want to send digital signals along with video and
> audio signal but dont want to use two types of transmitters. If im dreaming
> please let me know, or if I have the right idea please point me in the right
> direction.
>
> Thanks in advance.
>
> _________________________________________________________________
> Get your FREE download of MSN Explorer at http://explorer.msn.com
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>
>

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads