Invention Grant
- Patent Title: Touch motion detection method, circuit, and system
- Patent Title (中): 触摸运动检测方法,电路和系统
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Application No.: US13562217Application Date: 2012-07-30
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Publication No.: US09235289B2Publication Date: 2016-01-12
- Inventor: Maria Rhea Santos
- Applicant: Maria Rhea Santos
- Applicant Address: SG Singapore
- Assignee: STMicroelectronics Asia Pacific Pte Ltd
- Current Assignee: STMicroelectronics Asia Pacific Pte Ltd
- Current Assignee Address: SG Singapore
- Agency: Seed IP Law Group PLLC
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044

Abstract:
A touch controller includes a touch frame processing (TFP) component that receives sensor signals containing information about a touch point on a touch screen. The TFP component processes the sensor signals to generate touch information associated with each touch point. The touch information includes a location and the association of one of a touch-in, touch-out, and touch-motion event. A touch coordinate processing (TCP) component receives touch information from the TFP component and determines whether to report the touch information associated with a current touch point. The TCP component determines a difference between the location of the current touch point and a previously detected touch point and assigns a motion status to each touch event and reports the touch information when the difference is greater than a motion tolerance and when less than the motion tolerance selectively blocks or reports the touch information as a function of the corresponding motion status.
Public/Granted literature
- US20140028609A1 TOUCH MOTION DETECTION METHOD, CIRCUIT, AND SYSTEM Public/Granted day:2014-01-30
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