Essentially allowing to decrease tip diameter of contact with the capacitive touch screen.-- lostmind, Dec 06 2013 Electrets http://en.wikipedia.org/wiki/ElectretThat static charge can be a permanent thing. You could have opposite charges locked into place at each end of the stylus --just flip stylus around and interact with the touch-screen two different ways. [Vernon, Dec 06 2013] Jot Script Pixelpoint™ http://www.adonit.net/pixelpoint/ [xaviergisz, Mar 04 2015] US 20120043142 http://www.google.c...tents/US20120043142Electret stylus for touch-sensor device [xaviergisz, Mar 04 2015] WO 2014143574 https://www.google....ents/WO2014143574A1Electrostatic stylus [xaviergisz, Mar 04 2015] US 20130257793 https://www.google....tents/US20130257793This is the patent assigned to Adonit Co, the makers of the Jot Script. I didn't read it carefully, but I looked at figure 2 and that seemed fairly clear to me. [xaviergisz, Apr 09 2015] If you had a capacitor connected to piezoelectric grip you might be able to control the effective nib size-- lostmind, Dec 08 2013 This exists now!
the jot script. Designed for iPad but yeah, came out some time last year. Kind of angry tbh. but shit happens-- lostmind, Mar 04 2015 The jot script works completely differently than your idea. The explanation of the Pixelpoint™ technology used by the jot script is given on their website as follows:
How It Works Touch screens emit a signal from the edges of the device, forming a grid across the screen. Your finger, which is conductive, connects the signals and tells the device where on the grid the contact occurred. iOS is specifically designed to ignore small points of conductivity; this eliminates accidental touches, but also forces most styluses to have large, bulky tips. Pixelpoint™ technology solves this problem by detecting the signal from the device and rebroadcasting it in a larger diameter that’s recognized as a touch by the iPad’s screen.-- xaviergisz, Mar 04 2015 Also, there are a few patents that predate your idea (see links).-- xaviergisz, Mar 04 2015 I just came across those patents. The pixelpoint system is not exactly what they suggest it is. It is primarily a palm rejection system from what I can tell on their patent, though it also features pressure sensitivity. The wording '...from the device and rebroadcasting it in a larger diameter...' think is possibly the same technology of manipulating the charge at the tip.
Any way, got a jot script now and am very happy with it.-- lostmind, Apr 09 2015 random, halfbakery