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Line smoothing for correcting QWERsive input in high motion environment Disclosure Number: IPCOM000032946D
Original Publication Date: 2004-Nov-19
Included in the Prior Art Database: 2004-Nov-19
Document File: 1 page(s) / 30K

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Line smoothing QWERsive input can further improve this unique, advantageous, new form of data entry.

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Line smoothing for correcting QWERsive input in high motion environment

QWERsive is a patent pending technology from IBM that combines the concepts of cursive handwriting and QWERTY keyboards. A stylus is used to draw connecting lines between the geographic locations of characters on a keyboard, thereby offering significant advantages for data input in handheld computers.

QWERsive, as defined in the pending patent applications, depends heavily upon the user's ability to draw nearly perfectly straight lines. However, this is not always possible. Some people with disabilities or ailments, such as Parkinson's disease, may not be able to accurately draw straight lines. The same may be true for other people in restrictive environments, such as scuba divers, astronauts, pilots, or simply anyone riding in a vehicle.

What is needed, then, is a method to provide some error correction and line smoothing to improve input in such situations.

QWERsive relies heavily upon stroke order and major direction change. A QWERsive gesture generates a basic shape, to which one then applies line smoothing techniques. After remapping the gesture, the algorithm tries to make a high correlation match to some known basic gestures. These might be frequently used gestures or recently used gestures, etc. Additionally, known spell and/or grammar check techniques might be used to further discern the intended word.

Thus, using such techniques improves the accuracy of QWERsive input, further posit...