More or less I knew that, but, as you can see in the video/read in the news, microsoft stated tat the Windows 7 Multitouch works on "standard touchscreens"..
On Thu, May 29, 2008 at 7:37 AM, Federico Lorenzi <[EMAIL PROTECTED]> wrote: > On Thu, May 29, 2008 at 7:33 AM, Federico Lorenzi <[EMAIL PROTECTED]> wrote: >> Not really, normal touch screen tablets have a capacitive touch >> screen, which is why they usually only work with a special pen, and >> you can rest your hand on them. > Correcting myself - from Wikipedia: > Passive tablets, most notably those by Wacom, make use of > electromagnetic induction technology, where the horizontal and > vertical wires of the tablet operate as both transmitting and > receiving coils (as opposed to the wires of the RAND Tablet which only > transmit). The tablet generates an electromagnetic signal, which is > received by the LC circuit in the pen. The wires in the tablet then > change to a receiving mode and read the signal generated by the pen. > Modern arrangements also provide pressure sensitivity and one or more > switches (similar to the buttons on a mouse), with the electronics for > this information present in the pen itself, not the tablet. On older > tablets, changing the pressure on the pen nub or pressing a switch > changed the properties of the LC circuit, affecting the signal > generated by the pen, which modern ones often encode a digital data > stream onto the signal. By using electromagnetic signals, the tablet > is able to sense the stylus position without the stylus having to even > touch the surface, and powering the pen with this signal means that > devices used with the tablet never need batteries. Wacom's patents > don't permit their competitors to employ such techniques. > > Cheers, > Federico > > _______________________________________________ > Openmoko community mailing list > [email protected] > http://lists.openmoko.org/mailman/listinfo/community > -- My corner of the web: http://blog.ramsesoriginal.org _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
