Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2007-10-26
2011-11-01
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S173000, C178S018010, C178S018020
Reexamination Certificate
active
08049740
ABSTRACT:
A computer readable medium has instructions to calibrate a touch system by detecting touch points on a touchscreen that are each associated with touchscreen coordinates in a touchscreen coordinate system. The instructions associated each of the touch points with known calibration targets, and each of the calibration targets has display coordinates in a display coordinate system that is associated with at least one of a display screen and an operating system. The instructions fit the display coordinates and the touchscreen coordinates non-linearly with respect to each other based on a generalized Laplace-constrained fit that is used to identify correction parameters used to map a user generated run-time touch point on the touchscreen to a display coordinate location on a display screen. The correction parameters represent non-linear corrections.
REFERENCES:
patent: 4456787 (1984-06-01), Schlosser et al.
patent: 5422643 (1995-06-01), Chu et al.
patent: 5686705 (1997-11-01), Conroy et al.
patent: 5751276 (1998-05-01), Shih
patent: 6593916 (2003-07-01), Aroyan
patent: 6650319 (2003-11-01), Hurst et al.
patent: 7800589 (2010-09-01), Hurst et al.
patent: 2003/0043116 (2003-03-01), Morrison et al.
patent: 2004/0113895 (2004-06-01), Lubarsky et al.
patent: 2005/134992 (2005-05-01), None
patent: WO 9819283 (1998-05-01), None
Kent Joel C.
Warmack Robert J.
Harris Dorothy
Hjerpe Richard
Tyco Electronics Corporation
LandOfFree
Method and apparatus for laplace constrained touchscreen... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for laplace constrained touchscreen..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for laplace constrained touchscreen... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4299701