I offer the project of "STRAG" with 2 camouflage shtorka not dependent from each other from above and from below concerning the screen. The basis of the project is 2 EPM7128SLC-84 chips. The scheme is fulfilled on a maketka and 100 % is efficient. It would be desirable to hear your opinions of rather this project. This development is conducted for reduction of influence of level "black" when switching projectors 720р in a mode 2:35:1 without black strips on the screen.

this beginning of the project : https://www.youtube.com/watch?v=y70IJ7T ... ure=relmfu
, https://www.youtube.com/watch?v=qQvxybF ... ure=relmfu

It is checked at personnel frequency from 60-120HG
and also at lower case frequency of 48-180 KGH

I represent a signet of a payment of the controler of an automatic shtorka (in this option - 2шторки top and nizzhny) shot pozitsinorirovaniye. The scheme on 2 - x EPM7128SCL-84 COTTON VELVETS.А also on a payment is present at the right corner the L298N driver for management of two cursors independently. The size of a payment 50х200 just for the screen. The truth only for acquaintance that work proceeds. On this payment there are elements of preliminary record of situation a shtorok through J-ker (8-switches for each shtorka) installations at the work beginning. And processing of RGB of a signal (in the payment center) with 2 transistors and 2 chips (8-feet). 1 CHIP (at the left on a payment) is a processing of signals of inkoder, 2 - the chip on the right is the main for comparison and a visual conclusion of an informatsitsiya of control of this device under any screen (that is under lyuy the size of the screen).

idea prototype from here:
http://www.youtube.com/watch?v=Dpf7Iabi ... re=related

The project description and the videos are difficult to understand. The "idea" video in the third post shows a good demonstration of the project goal. Basically these are motorized blinds that hide the "black bars" on a widescreen projection. I think the goal is to auto-detect the black region from the video signal and auto-adjust the blinds accordingly. This would be a nice addition to a home theater. A simpler solution could be accomplished using a purely mechanical blind or even a motorized one with remote control, but a automated and motorized version like this would look nice.

Automatic detection of "black bars" already works, the truth on a maketka. The controler accurately allocates the beginning and "black bars" end from VGA signal
the first beam - video signal
the second beam - "black bars" signal
P.S :prototype of the controler of management zhalyuzy for "black bars" from VGA signal .