Apparatus and methods for hand motion detection and hand motion tracking generally
First Claim
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1. Apparatus for hand motion tracking comprising:
- a hand-held device comprising at least one accelerometer providing an acceleration indicating output;
computation circuitry receiving said acceleration indicating output, discarding user specific components therein by eliminating samples and providing a non-user specific output; and
a hand motion tracker receiving said non-user specific output and providing a tracking output indication.
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Abstract
Apparatus and method for handwriting recognition including a hand-held device including at least one accelerometer providing an acceleration indicating output, computation circuitry receiving the acceleration indicating output and providing a velocity indicating output and a handwritten multiple character recognizer receiving the velocity indicating output and providing a multiple character recognition output indication.
79 Citations
48 Claims
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1. Apparatus for hand motion tracking comprising:
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a hand-held device comprising at least one accelerometer providing an acceleration indicating output; computation circuitry receiving said acceleration indicating output, discarding user specific components therein by eliminating samples and providing a non-user specific output; and a hand motion tracker receiving said non-user specific output and providing a tracking output indication. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for hand motion tracking comprising:
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providing an acceleration indicating output from a hand-held device; receiving said acceleration indicating output, discarding user specific components by eliminating samples therein and providing a non-user specific output; and receiving said non-user specific output and providing a tracking output indication. - View Dependent Claims (9, 10, 11, 12)
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13. Apparatus for hand motion tracking comprising:
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a hand-held device comprising at least one accelerometer providing an acceleration indicating output; computation circuitry including minimum motion point identification functionality employing said acceleration indicating output, identifying minimum motion points and providing a minimum motion point identification output; and hand motion tracking circuitry employing said acceleration indication output and said minimum motion point identification output for providing a hand motion tracking output indication. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A method for hand motion tracking comprising:
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providing an acceleration indicating output of a hand-held device comprising at least one accelerometer; employing said acceleration indicating output, identifying minimum motion points and providing a minimum motion point identification output; and employing said minimum motion point identification output and additionally employing said acceleration indication output for providing a hand motion tracking output indication. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. Apparatus for hand motion tracking comprising:
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a hand-held device comprising at least one accelerometer providing an acceleration indicating output; computation circuitry receiving said acceleration indicating output, discarding user specific components therein and providing a non-user specific output by indicating value changes and ignoring time durations between said changes; and a hand motion tracker receiving said non-user specific output and providing a tracking output indication. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. Apparatus for hand motion tracking comprising:
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a hand-held device comprising at least one accelerometer providing an acceleration indicating output; computation circuitry receiving said acceleration indicating output, discarding user specific components therein and providing a non-user specific output including motion direction signs; and a hand motion tracker receiving said non-user specific output and providing a tracking output indication. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. A method for hand motion tracking comprising:
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providing an acceleration indicating output from a hand-held device; receiving said acceleration indicating output, discarding user specific components therein and providing a non-user specific output, wherein providing a non-user specific output includes indicating value changes and ignoring time durations between said changes; and receiving said non-user specific output and providing a tracking output indication. - View Dependent Claims (43, 44, 45, 46)
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47. Apparatus for hand motion tracking comprising:
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a hand-held device comprising at least one accelerometer providing an acceleration indicating output; computation circuitry operative to employ an abscissa indicating number of changes to provide non-user specific output, receiving said acceleration indicating output, discarding user specific components therein and providing a non-user specific output; and a hand motion tracker receiving said non-user specific output and providing a tracking output indication.
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48. A method for hand motion tracking comprising:
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providing an acceleration indicating output from a hand-held device; receiving said acceleration indicating output, discarding user specific components therein and providing a non-user specific output comprising employing an abscissa indicating time; and receiving said non-user specific output and providing a tracking output indication.
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Specification