Invention Grant
US07646377B2 Position digitizing using an optical stylus to image a display
有权
使用光学触控笔进行位置数字化以对显示器进行成像
- Patent Title: Position digitizing using an optical stylus to image a display
- Patent Title (中): 使用光学触控笔进行位置数字化以对显示器进行成像
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Application No.: US11123529Application Date: 2005-05-06
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Publication No.: US07646377B2Publication Date: 2010-01-12
- Inventor: Bernard O. Geaghan
- Applicant: Bernard O. Geaghan
- Applicant Address: US MN Saint Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN Saint Paul
- Agent Steven A. Bern
- Main IPC: G06F3/41
- IPC: G06F3/41

Abstract:
The present invention provides systems and methods of using an stylus that houses optics and a detector capable of imaging display pixels. Stylus position is determined according to the number and direction of imaged pixels passing through the field of view of the stylus optics. Stylus orientation, including rotation and tilt, stylus height, stylus contact state, and stylus pressure may also be determined.
Public/Granted literature
- US20060250381A1 Position digitizing using an optical stylus to image a display Public/Granted day:2006-11-09
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