During the Reddit AmA by Surface team from Microsoft, Stevie Bathiche from Surface team did a long reply on Reddit explaining the Stylus technologies available on the market and why Microsoft chose N-Trig over Wacom. Read his full response below. Hi.. this is StevieB. I anticipated the pen digitizer question.. so I have been thinking about how to talk about it over the weekend. I hope you and other folks find it useful. I will try to answer the rest of your questions preceding. Below is about your Wacom and Pressure question. There are 3 main types of pen digitizer technologies: Electromagnetic, passive capacitive (those conductive rubber tipped pens that trick the digitizer into looking like a finger), and active capacitive. Electromagnetic works by putting a printed circuit board across the entire device, typically situated underneath the display and its backlight. This is a completely separate system from the touch ...

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