Steve Anderson wrote:Harry Dalek wrote:...for a future monitor 100 lines (or) over .
Well, it all depends on the bandwidth required. Which is dictated by number of lines (OK set at 100 for now), Aspect ratio, (WxH), and frame rate. Plus to an extent sync arrangements.
Say 100 lines, 1.5 Aspect Ratio and 12.5 fps. So that implies 150 line pixels. 100 lines at 12.5fps. 100 (lines) x 150 (pixels) x !2.5 (fps) = 187,500 pixels per second, a bandwidth of 93kHz. Add in a fudge-factor of 15% for syncs = approx. 105kHz. You see the problem...
The electronics isn't the problem, the storage and retrieval could be...and we haven't even touched on the audio to go with it.
The bandwidth required goes up with the square of the resolution required, all other things being equal...
Steve A.
Yes the biggest problem i see is not so much making a higher bandwidth monitor work but having a video to feed it of some sort ,i looked into this into this in the past with the making thanks to your circuits in part the cyclops vidicon multisystem camera and the NBTV Television Analyst results ,the the vidicon could be best bet for some thing around the right bandwidth like every thing put away will it still work after a few years in a box ? i could only test it with the PC monitor software we have didn't have a multisystem monitor to test it at the time ...i think a stair case grey scale test card generator might be also an easier fix for testing .
I remember you mentioning a vcr could record the video perhaps as in the storage problem ?