公开(公告)号：US20140152604A1

公开(公告)日：2014-06-05

申请号：US14175566

申请日：2014-02-07

Applicant: APPLE INC.

Inventor： Wayne Carl WESTERMAN ,  Brett G. ALTEN

IPC: G06F3/0488 ,  G06F3/0485 ,  G06F3/0481 ,  G06F3/0486

CPC classification number: G06F3/04817 ,  G06F3/038 ,  G06F3/0416 ,  G06F3/0485 ,  G06F3/0486 ,  G06F3/0488 ,  G06F3/04883 ,  G06F2203/04808 ,  G06K9/00335

Abstract: The detection of finger pinch, rotate, and tap gestures along with a translation and optionally liftoff motion to initiate certain actions is disclosed. To detect both the gesture and the translation, a certain amount of gesture scaling speed can be detected along with a certain amount of translation speed and distance traveled. For a finger pinch gesture, the scaling speed can be computed as the dot product of the velocity vectors of two or more fingers coming together. For a finger rotation gesture, the scaling speed can be computed as a cross product of the velocity vectors of the rotating fingers. The translation speed of a gesture can be computed as the average of the velocity vectors of any fingers involved in the gesture. The amount of gesture scaling speed and translation speed needed to trigger the recognition of a combined gesture with translation can be a predetermined ratio.

Abstract translation: 公开了手指捏合，旋转和敲击手势以及平移以及可选地提升运动以发起某些动作的检测。 为了检测手势和翻译，可以检测一定量的手势缩放速度以及一定量的平移速度和旅行距离。 对于手指捏捏手势，缩放速度可以计算为两个或更多个手指的速度矢量的一部分的积积。 对于手指旋转手势，缩放速度可以被计算为旋转手指的速度矢量的交叉乘积。 手势的翻译速度可以计算为手势中涉及的任何手指的速度向量的平均值。 触发识别组合手势所需的手势缩放速度和平移速度的量可以是预定的比例。