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How does QWERTY keyboard implemented for the Ultra-Small Devices

The smart watch revolution is only just about beginning but is expected to pick up great speed later this year when Apple unveils iWatch. Even Microsoft is said to be preparing a smart watch, while LG and Samsung have also announced that they are working on their versions of a connected wrist watch. But, this is not what i want to talk about. The technology behind the smart watch using for their QWERTY Keyboard. ultra-small computing platforms like the Sony SmartWatch and Apple iPod Nano lack the feature of text entry. But, now this can be also be encountered by using the technology called Zoomboard.

ZoomBoard is a soft onscreen keyboard for quick and accurate finger typing available for Windows Mobile Pocket PC. The penny-sized QWERTY keyboard for touchscreens looks positively minute on first glance. But a tap on any section of the keyboard magnifies it, thus making typing easier even on tiny screens.


How it works:

In order to type a letter, users have to press on a desired key. As the text entry on keyboard measuring just 16x6 mm, so it would be highly inaccurate for users to immediately select a key. To avoid such an inaccuracy in pressing text, these keyboard zooms in. A smooth zooming transition is used to preserve perceptual constancy. Next, with larger targets, the user can refine their finger position if needed, and once again press their desired key. If necessary, more levels of zoom can be employed. Once keys have reached a size that enables accurate section, zooming stops and the key is typed upon pressing.

Additionally, capital letters can also be typed by pressing and momentarily holding a key. Access to non-alphanumeric keys is provided via three swipe gestures. A swipe to the left deletes the last character. An upward swipe brings up a secondary keyboard with symbols. A swipe to the right types a space and a functional space bar on the ZoomBoard layout primarily also included to act as an additional visual cue, though this could be removed to save space.

On further development, A group of Carnegie Mellon University researchers have developed a keyboard application to work on displays as small as the one on Pebble smart watch or even smaller. And even though there is no intention of commercialising Zoomboard just yet, the very compact source code is available online for further development.

Here, you can download VITO Zoomboard trial version for the accurate finger typing on Windows Mobile Pocket PC.

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