I think it would be possible to make the logo mostly invisiblle but it would be hella difficult. Basically you would have to somehow reccord their logo against a black (0,0,0) and white (255,255,255) picture at the full TV scan speed. (difficult thing 1) then intercept the tv signal (presumabally after the tuner) and then subtract that image (with presumabally some brightness modifier) from the image passing through (difficult thing 2). the requirements for that in terms of AD and DA circutry are well fairly insane unless you happen to be phillips or something. Though I know if there were some sort of "black box" that could do it cheaply I would buy one ;-> ----- Original Message ----- From: "Alan B. Pearce" To: Sent: Friday, June 20, 2003 5:41 PM Subject: Re: [OT]: TV question > >> There is a known problem with projection TV that sometimes the TV > >> station sign (on the upper left/right) "burnt" there after a long time > >> of use (I guess cause this area is not "moving".) > >> is there any way to take it off? > > > >Read a book instead? > > Or maybe the occasional PIC data sheet :))) > > >Along those lines, how come *screen savers* nowadays don't actually do > >anything that would help save your screen? > > I think there are several reasons. > > 1. people do not have the brightness up as high, so burn in is less likely, > due to higher brightness phosphors and burn resistant technologies within > the tube. > > 2. Screensavers are used more now for locking access when people are away > from the PC. > > 3. Commercial organisations see a gain in using the screen saver as an > advertising medium. > > 4. PC users like the idea of using a screen saver as a cover up to stop > other people seeing what they are doing. > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu