[dorkbotnyc-blabber] circuit help - extracting closed captions from broadcast news

Lou Klepner lou at evolvingmedia.net
Fri Sep 5 14:58:47 EDT 2008


Hi All,

I'm working on a media monitoring application for a small non-profit.  
We're recording network news broadcasts for analysis and satire  
purposes and would like to add closed captions to our existing capture  
system. Our analog to digital converters don't handle the CC data so  
I've found a small standalone circuit that should do the trick - it  
takes an incoming video signal, extracts the closed caption data and  
sends it, via hyperterminal, to a host computer.

http://www.compendiumarcana.com/vbi/

While I've done very simple circuit assembly (kits) in the past,  
sourcing the parts and any debugging that might be necessary, are way  
out of my league. Seems like a fairly simple circuit - 33 components  
in total, of which 20-something are unique.

Whatcha say? Want to hack this together? We're a fledging startup but  
can offer beer, pizza and a little bit of $ to the right person.  
Knowledge of PIC programming / Hyperterminal a plus.

Cheers,
- Lou


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