As smartphones have evolved, stylus-powered devices have become more and more obsolete. NVIDIA is trying to revive the popularity of styluses with their DirectStylus for Tegra 4 tablets. The DirectStylus is different because it uses a fine-tip point and allows users to draw lines of varying widths on the screen. It works along with the Direct Touch 2.0 technology that comes with the tablets that supports up to 300 scans a second to display detailed movement of the stylus.
The NVIDIA DirectStylus also uses image-processing capabilities of the Tegra 4′s GPU to determine the difference between your stylus, finger, eraser, or palm. The result is thin, passive, pressure-sensitive styluses that can draw different widths. The opposite end can even be used as an eraser, even without being active. Active styluses, for those that aren’t familiar, already have the ability to draw different widths, but they are usually quite expensive since they require a digitizer.
This technology, which will be extremely helpful for users in the Asian market where characters are drawn with different widths and lengths, should be available later this summer.
Source: NVIDIA Blog
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