Invention Grant
- Patent Title: Method and apparatus for two-finger touch coordinate recognition and rotation gesture recognition
- Patent Title (中): 用于双指触摸坐标识别和旋转手势识别的方法和装置
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Application No.: US12389996Application Date: 2009-02-20
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Publication No.: US08345019B2Publication Date: 2013-01-01
- Inventor: Henry M. D'Souza , Joel C. Kent
- Applicant: Henry M. D'Souza , Joel C. Kent
- Applicant Address: US CA Menlo Park
- Assignee: Elo Touch Solutions, Inc.
- Current Assignee: Elo Touch Solutions, Inc.
- Current Assignee Address: US CA Menlo Park
- Agency: Alston & Bird LLP
- Main IPC: G06F3/045
- IPC: G06F3/045

Abstract:
A resistive touchscreen system comprises a substrate, a coversheet and a controller. The coversheet comprises a first conductive coating and the substrate comprises a second conductive coating. The substrate and coversheet are positioned proximate each other such that the first conductive coating faces the second conductive coating, and the substrate and coversheet are electrically disconnected with respect to each other in the absence of a touch. The controller is configured to (a) identify a multiple touch state when the substrate and coversheet are electrically connected with respect to each other at at least two touch locations, (b) to detect, over time, a plurality of apparent touch coordinates, (c) identify two possible X coordinates and two possible Y coordinates associated with at least one of the apparent touch coordinates, and (d) identify coordinate locations of two touches based on the apparent touch coordinates and the two possible X and Y coordinates.
Public/Granted literature
- US20100214231A1 METHOD AND APPARATUS FOR TWO-FINGER TOUCH COORDINATE RECOGNITION AND ROTATION GESTURE RECOGNITION Public/Granted day:2010-08-26
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