directtouch
Latest
NVIDIA CEO demos new stylus touchscreen tech, uses Tegra 4 image processing to reduce battery drain
Elaborating from the battery-saving PRISM screen tech that we saw on Tegra 3 devices, the NVIDIA CEO Jen-Hsun Huang showed off a new software-based touchscreen technology that allows you to use a simple capacitive stylus with a degree of pressure-based input. Showing of his writing skills at Computex on an experimental 7-inch tablet, he used a simple (ie. non-digitizer) stylus to write at several different thicknesses, utilizing a flat surface at the other end of the pen to erase any mistakes -- there's sensitivity to the millimeter, apparently. NVIDIA reckons this will improve battery life while using the stylus and offers a high detection rate (thanks to the software-based processes) for slick, curved lines. The primary hardware necessary? No less than NVIDIA's new Tegra 4 chip, of course, and DirectTouch. Check out the gallery of the stylus in action below, and we can expect the company to elaborate on which devices will house the feature in the near-future. %Gallery-190209%
NVIDIA gets big names to embrace DirectTouch tech in Tegra 3 devices (video)
Synaptics, Atmel,N-trig, Raydium, Cypress and Focaltech -- big names in the field of touch-based devices -- have all agreed get on board with NVIDIA's DirectTouch platform. The tech offloads some of the work needed to track and process finger input from the controller to the Tegra 3, improving response and battery life. We were first introduced to the architecture at CES, but wasn't clear that others would embrace it. With two of the biggest makers of touchscreen controllers, Synaptics and Atmel, throwing their weight behind the project, though, things are looking up for NVIDIA-powered tablets. N-trig is even leveraging the processing power to improve the response of capacitive styli by combining DirectTouch with DuoSense (the tech behind the HTC Flyer). For more info check out the PR and video after the break.
