Yes, some of those scan converters implement doublescan (overscan is related just to scaling). I'm not ready to add 50-100 GBP to the price of my unit. Well, it might be cheaper if I repeat the circuit on my board, but 150 Euro will still be unreachable.
As of now, I'm looking for USB-to-VGA chip with doublescan capability, which would eliminate LOTS of analog circuitry and expensive frame buffer thingies.



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