Method of detecting user input in a 3D space and a 3D input system employing same
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 11, 2020
Grant Date -
Jul 4, 2019
app pub date -
Mar 11, 2019
filing date -
Mar 11, 2019
priority date (Note) -
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Abstract
A 3D input system and an angle encoder are disclosed. The 3D input system comprises a computing device and one or more position sensing gloves. The position sensing glove comprises a plurality of angle encoders each installed thereon at a location about a finger joint. An inertial measurement unit (IMU) is installed on the glove. A firmware uses data from the angle encoders and IMU to calculate fingertip positions in a 3D space. The firmware generates keystrokes on a virtual keyboard based on the fingertip positions. The angle encoder comprises a first and a second components rotatable with respect to each other, and an encoder pattern comprising codewords for indicating the angle between the first and second components. The encoder pattern comprises a set of base encoder channels coded with a conventional Gray code, and a set of Booster channels for improving the resolution of angle measurement.
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