Subject: Re: [stella] Would it be possible... From: emooney1@xxxxxxxx (Erik K Mooney) Date: Sat, 2 Aug 1997 20:40:01 -0400 |
>I've looked for closed captioning and other information once I >discovered >that Channel 3 was displaying the text "KTVK PHOENIX" in the vertical >blank >area of its signal. I then started to spot many different kinds of >signals >present in other channels, sometimes several rapidly-changing >scanlines of >data in each frame. I'd like to know what's in all that data, myself. Dunno what else would be there besides closed-captioning. Possibly the VCR-Plus (whatever it's called) numbers that are supposed to let your VCR find and tape any progam using just that number... the numbers are supposed to work across different cable companies where different stations are on different channels, so it can't be a simple formula indicating time and channel - there's gotta be something broadcast. Dunno what else could be in there, though... GPS signals? Stock updates? >Experiment with dark gray double-width sprites and playfield graphics >on >the 18th scanline, or somewhere around there, of the vertical blank. >At least "18th scanline" is what I keep hearing. I can't seem to find >much >more information. I doubt we're going to be able to reverse-engineer closed captioning from simply experimenting =) The info is obviously available to TV manufacturers and broadcasters, so it's gotta be available somewhere... shouldn't there be a regulation somewhere (anti-monopoly) saying that the info has to be available to us in case we wanna start a TV-manufacturing company? >If we get it working, Greg Troutman should make a version of Dark Mage >that >uses this. :) Would be neat.. is it violation of the classic-game spirit to use improved graphics capability in the TV? (hmm... wonder if a 2600 could somehow force a picture-in-picture thingy and transmit different stuff on channels 2 and 3... :) ) -- Archives updated once/day at http://www.biglist.com/lists/stella/archives/ Unsubscribing and other info at http://www.biglist.com/lists/stella/stella.html
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