公开(公告)号：US20160147370A1

公开(公告)日：2016-05-26

申请号：US14951230

申请日：2015-11-24

Applicant: Qualcomm Technologies, Inc.

Inventor： Rishi Mohindra

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047

CPC classification number: G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/047

Abstract: A touch panel system is described that is configured to reduce inter-symbol interference (ISI). In an implementation, the touch panel system includes a touch panel assembly that includes a plurality of drive electrodes arranged one next to another and a plurality of sensor electrodes arranged one next to another across the drive electrodes to form a plurality of pixels having a mutual capacitance. The touch panel system also includes a transmitter configured to drive the drive electrodes with drive signals derived at least partially from excitation values. The transmitter is configured to apply a window function to the drive signals. The system also includes a receiver configured to sense signals furnished from the sensor electrodes and to determine the mutual capacitance of the pixels.

Abstract translation: 描述了被配置为减少符号间干扰（ISI）的触摸面板系统。 在一个实施方案中，触摸面板系统包括触摸面板组件，其包括彼此相邻布置的多个驱动电极和在驱动电极之间彼此相邻布置的多个传感器电极，以形成具有互电容的多个像素 。 触摸面板系统还包括被配置为通过至少部分地从激励值导出的驱动信号来驱动驱动电极的发射器。 变送器配置为对驱动信号应用窗口功能。 该系统还包括被配置为感测从传感器电极提供的信号并确定像素的互电容的接收器。

公开(公告)号：US20160188110A1

公开(公告)日：2016-06-30

申请号：US14796968

申请日：2015-07-10

Applicant: Qualcomm Technologies, Inc.

Inventor： Rishi Mohindra

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044 ,  G06F3/045 ,  G06F3/0488 ,  G06F2203/04104 ,  G06F2203/04108

Abstract: A touch panel controller may include a communications module configured to receive pixel values, where each pixel value represents a capacitance associated with a pixel formed at a drive electrode and a sensor electrode of a touch panel. The touch panel controller may also include a processing module configured to discard pixel values below a noise threshold, discard pixel values for non-zero pixels that are not adjacent to non-zero pixels, reject detected input for pixel values associated with a palm input, compute an initial centroid associated with the pixel values, reject detected input for pixel values associated with a hover input, and provide detected input that is not associated with palm input or hover input.

Abstract translation: 触摸面板控制器可以包括被配置为接收像素值的通信模块，其中每个像素值表示与形成在触摸面板的驱动电极和传感器电极处的像素相关联的电容。 触摸面板控制器还可以包括处理模块，其被配置为丢弃低于噪声阈值的像素值，丢弃不与非零像素相邻的非零像素的像素值，拒绝与手掌输入相关联的像素值的检测输入， 计算与像素值相关联的初始质心，拒绝与悬停输入相关联的像素值的检测输入，并提供与手掌输入或悬停输入不相关的检测到的输入。