Invention Grant
- Patent Title: Pinch-throw and translation gestures
- Patent Title (中): 捏捏和翻译手势
-
Application No.: US14175566Application Date: 2014-02-07
-
Publication No.: US09182884B2Publication Date: 2015-11-10
- Inventor: Wayne Carl Westerman , Brett G. Alten
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Morrison & Foerster LLP
- Main IPC: G09G3/04
- IPC: G09G3/04 ; G06F3/0481 ; G06F3/0488 ; G06F3/038 ; G06F3/041 ; G06K9/00 ; G06F3/0485 ; G06F3/0486

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.
Public/Granted literature
- US20140152604A1 PINCH-THROW AND TRANSLATION GESTURES Public/Granted day:2014-06-05
Information query