Invention Grant
US07646380B2 Correction of alignment and linearity errors in a stylus input system
失效
在触控笔输入系统中纠正校准和线性误差
- Patent Title: Correction of alignment and linearity errors in a stylus input system
- Patent Title (中): 在触控笔输入系统中纠正校准和线性误差
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Application No.: US11466003Application Date: 2006-08-21
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Publication No.: US07646380B2Publication Date: 2010-01-12
- Inventor: Michael H. Tsang
- Applicant: Michael H. Tsang
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Shook, Hardy & Bacon LLP
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06K11/06
Abstract:
A method and system for correcting alignment and linearity errors in devices using a finger or stylus input device with a display device interactively coupled to a digitizer is disclosed. Touching intersections in a calibration grid on the display device may be performed to create a linearity map. Subsequently, detected stylus input is mapped to a sector in the linearity map, and resultant screen coordinates are calculated using ratios within a reference rectangle corresponding to the detected stylus input and the mapped sector.
Public/Granted literature
- US20060279556A1 CORRECTION OF ALIGNMENT AND LINEARITY ERRORS IN A STYLUS INPUT SYSTEM Public/Granted day:2006-12-14
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