XT9 is a text predicting and correcting system for mobile devices with full keyboards rather than the 3x4 keypad on old phones.[1] It was originally developed by Tegic Communications, now part of Nuance Communications.[2] It was created for devices with styluses, but is now used for touch screen devices too. It is a successor to T9, a popular predictive text algorithm for mobile phones with only numeric pads. Also you can notice small XT9 label on some phones, mostly on HTC phones.


References

  1. ^ "XT9 takes predictive text entry to the Xtreme", Engadget (February 14th 2006).
  2. ^ Nuance Communications press release Archived October 13, 2007, at the Wayback Machine (2007).

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