Or you just use an infrared proximity sensor. I was thinking it might be possible to do the same on the Freerunner with the accelerometers.
On 6/10/08, Raphael Wimmer <[EMAIL PROTECTED]> wrote: > On Tue, 10 Jun 2008 09:45:18 +0200, kenneth marken <[EMAIL PROTECTED]> > wrote: > >> On Tuesday 10 June 2008 07:37:33 Ron K. Jeffries wrote: >>> -- larger physical screen size (but about the same dpi?) >> >> i do belive the iphone is lower dpi as the GTA02 is smaller in size, but >> higher in rez. >> >>> -- proximity sensor (knows when held to face, can dim screen) >> >> that is probably just the heat sensitive screen and some code that >> basically locks out input ones a heat source with a surface area larger >> then a couple of fingers are detected... > [...] > > It's just the capacitive touch screen. I'm pretty sure no temperature > sensor is involved. As you said ,you just measure the contact area between > finger and screen (which is easily possible with capacitive touch screens) > - and once the contact area gets larger than let's say 3cm you assume that > your ear/cheek is in contact with the screen. > > Raphael > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > -- Sent from Gmail for mobile | mobile.google.com _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
