NTSC Closed Caption decoder

[huang606]

Dear all,
I am designing a NTSC line 21 decoder which is going to integrated with
other video function such as scaler, decoder, deinterlacer..
Any idea about how to start it and the functional block diagram.

Thanks

Rich

 

[bobcat1]

Hi

There was en artical published on a magazine called "radio electronics"

On how to build a NTSC Closed Caption decoder the magazine no longer

published but you might get some old copy in a library

regrds


Bobi