首页> 外国专利> Piecewise-Linear and Piecewise-Affine Subspace Transformations for Finger-Angle and Spatial Measurement Decoupling and Correction in Single-Touch and Multi-Touch Touchpad and Touchscreen Systems

Piecewise-Linear and Piecewise-Affine Subspace Transformations for Finger-Angle and Spatial Measurement Decoupling and Correction in Single-Touch and Multi-Touch Touchpad and Touchscreen Systems

机译：用于单点触摸和多点触摸板和触摸屏系统中手指角度和空间测量解耦和校正的分段线性和分段仿射子空间变换

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摘要

Methods for piecewise-linear and piecewise-affine transformations for finger-angle and spatial measurement decoupling in user touch and gesture interfaces including those with multitouch capabilities are described. A calculation chain provides a first-order calculation of up to six touch parameters (left-right, front-back, downward pressure, roll angle, pitch angle, yaw angle) responsive in real-time to user touch on a touch-responsive sensor array. A piecewise-affine transformation is applied to these first-order calculations to produce parameter decoupling. The piecewise-affine transformation can be structured to depend only on current numerical values from the first-order calculation. Alternatively, the piecewise-affine transformation can be structured to additionally depend on the positive or negative direction of change over time of at least one numerical value from the first-order calculation, thereby providing a correction for hysteresis effects.

机译：描述了在用户触摸和手势界面（包括具有多点触摸功能的界面）中进行手指角度和空间测量解耦的分段线性和分段仿射变换的方法。计算链可对多达六个触摸参数（左右，前后，向下压力，侧倾角，俯仰角，偏航角）进行一阶计算，以实时响应用户对触摸感应传感器的触摸数组。将分段仿射变换应用于这些一阶计算以产生参数去耦。可以将分段仿射变换构造为仅依赖于一阶计算的当前数值。可替代地，分段仿射变换可以被构造为另外取决于来自一阶计算的至少一个数值随时间的正或负变化方向，从而提供对滞后效应的校正。

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公开/公告号US2019187888A1

专利类型
公开/公告日2019-06-20

原文格式PDF
申请/专利权人 NRI R&D PATENT LICENSING LLC;
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申请/专利号US201916283562
发明设计人 LESTER F. LUDWIG;
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申请日2019-02-22
分类号G06F3/0484;G06F3/0488;G06F3/044;G06F3/042;G06F3/041;G09G5/06;G06F3/01;
国家 US
入库时间 2022-08-21 12:09:53

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