Motion-based text input
First Claim
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1. A method for generating input text with a pointing device, in which the pointing device is at a distance from a writing surface, comprising:
- sensing motion information of a mobile coordinate frame of a pointing device relative to a stationary coordinate frame of a writing surface at a distance from the pointing device using a motion sensor fixed to the pointing device and configured to track motion of the pointing device;
defining a track of the pointing device from the motion information;
inputting the track into a script recognizer, in which the script recognizer determines input text corresponding to the motion information.
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Abstract
A method generates input text with a pointing device at a distance from a writing surface. Motion information of a mobile coordinate frame of the pointing device is sensed relative to a stationary coordinate frame of the writing surface using a motion sensor configured to track motion of the pointing device. The input text is then determined from the motion information. A projection of a track of the motion of the pointing device on the writing surface can also be determined from the motion information, and the track can be displayed on the writing surface as the input text.
57 Citations
25 Claims
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1. A method for generating input text with a pointing device, in which the pointing device is at a distance from a writing surface, comprising:
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sensing motion information of a mobile coordinate frame of a pointing device relative to a stationary coordinate frame of a writing surface at a distance from the pointing device using a motion sensor fixed to the pointing device and configured to track motion of the pointing device; defining a track of the pointing device from the motion information; inputting the track into a script recognizer, in which the script recognizer determines input text corresponding to the motion information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An apparatus for generating input text, comprising:
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a pointing device including a motion sensor; means for sensing motion information of a mobile coordinate frame of the pointing device relative to a stationary coordinate frame of a writing surface at a distance from the pointing device using the motion sensor; means for defining a track of the pointing device from the motion information; and a script recognizer configured to determine input text corresponding to the motion information. - View Dependent Claims (25)
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Specification