公开(公告)号：US20160239136A1

公开(公告)日：2016-08-18

申请号：US15042058

申请日：2016-02-11

Applicant: Qualcomm Technologies, Inc.

Inventor： Fatih Kocak ,  Melih Altun ,  Cetin Seren ,  Ali Ekici

IPC: G06F3/041 ,  G06K9/46 ,  G06F3/044

CPC classification number: G06F3/0414 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06K9/46 ,  G06K2009/4666

Abstract: This disclosure provides systems, methods and apparatus for determining a force index associated with a touch event. One aspect of the subject matter described in this disclosure can be implemented in a touch sensor system. The touch sensor system can include a touchscreen including a plurality of electrodes, and a sense circuit operable to sense electrical signals from the plurality of electrodes. The touch sensor system also can include an image processing module operable to generate an image frame based on the electrical signals sensed by the sense circuit. The touch sensor system also can include a feature extraction module operable to analyze the image frame and to identify touch event candidates based on the analysis. The touch sensor system also can include a touch event detection module operable to determine, for each identified touch event candidate, whether the touch event candidate is associated with a touch event. The touch sensor system further includes a force detection module operable to determine, for each touch event candidate associated with a touch event, a first component of the image frame associated with an object effect. The force detection module is further operable to determine, for each touch event candidate associated with a touch event, a second component of the image frame associated with a force effect, and to determine a force index value associated with the force effect.

Abstract translation: 本公开提供了用于确定与触摸事件相关联的力指数的系统，方法和装置。 在本公开中描述的主题的一个方面可以在触摸传感器系统中实现。 触摸传感器系统可以包括包括多个电极的触摸屏以及可操作以感测来自多个电极的电信号的感测电路。 触摸传感器系统还可以包括图像处理模块，其可操作以基于由感测电路感测的电信号来生成图像帧。 触摸传感器系统还可以包括特征提取模块，其可操作以分析图像帧并且基于分析识别触摸事件候选。 触摸传感器系统还可以包括触摸事件检测模块，其可操作以针对每个所识别的触摸事件候选来确定触摸事件候选者是否与触摸事件相关联。 触摸传感器系统还包括力检测模块，其可操作以针对与触摸事件相关联的每个触摸事件候选来确定与对象效果相关联的图像帧的第一分量。 力检测模块还可操作以对于与触摸事件相关联的每个触摸事件候选来确定与力效应相关联的图像帧的第二分量，并且确定与力效应相关联的力指数值。