RE: TV Charater Overlay - food for thought

["Des Gibbons" <des@xxxxxxxxxxxx>]

Wayne,


The problem with on screen display, is that nobody I know watches TV using
a
composite signal.

There is no easy way of interlacing OSD onto a s-video or RGB signal, (for
easy read cheap :)

Your best bet is a seperate VFD display, or a slimp3 which is always on
display.

Cheers, Des.



> -----Original Message-----
> From: Wayne [mailto:wayne@xxxxxxx]
> Sent: Wednesday, March 17, 2004 22:15
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] TV Charater Overlay - food for thought
>
>
> Hiyall,
> Came across these the other day (http://www.decadenet.com/) the BOB-3
> units... which have a ttl level (may be wrong) serial port on it -
video
> in - video out.
>
> Basically a character generator on a "simm"
> Now - these ethernet -> serial ports that have been talked about,
how
> much of a challenge is it to get something like that to drive this
> module and therefor up pop messages on your tele...
>
> I'm making a few assumptions here
> 1st off, my freeview box, when I turn it on, makes the tele jump to
the
> correct channel and therefor you are watching whatever channel the box
> was left on.
> 2nd,  I /think/ (Haven't played for a while) that my tele also puts
out
> (on the scart connector) the channel that the tv was on /before/ you
> changed to the scart channel. I dont know if this is correct for all
> tele's but am sure this is the case on my Toshiba.
>
> So... with a bit of 'electronic wizardry' I was thinking along the
lines
> that the video source for these 'bob-3's is the output of  the scart
of
> your tele. These programmable ethernet-> serial adapters accept
your IP
> data and 'as if by magic' you have this network accessible display
thing
> that will overlay your programmed text onto whatever you are watching
on
> the tele.




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