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Class Information
Number: 345/178
Name: Computer graphics processing, operator interface processing, and selective visual display systems > Display peripheral interface input device > Touch panel > With alignment or calibration capability (i.e., parallax problem)
Description: Subject matter wherein the input device compensates for any misalignment of a touch location and its corresponding energized display element*.










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
5117071 Stylus sensing system May. 26, 1992
5115107 Method of correcting skew between a digitizer and a digital display May. 19, 1992
5097102 Coordinate input apparatus Mar. 17, 1992
5010323 Interactive overlay driven computer display system Apr. 23, 1991
4972496 Handwritten keyboardless entry computer system Nov. 20, 1990
4947156 Handwritten character input device Aug. 7, 1990
4933544 Touch entry apparatus for cathode ray tube with non-perpendicular detection beams Jun. 12, 1990
4929935 Apparatus for aligning raster scanned image to touch panel May. 29, 1990
4903012 Coordinate system input device providing registration calibration and a mouse function Feb. 20, 1990
4873398 Flat panel display with integrated digitizing tablet Oct. 10, 1989
4845346 Touch panel having parallax compensation and intermediate coordinate determination Jul. 4, 1989
4764885 Minimum parallax stylus detection subsystem for a display device Aug. 16, 1988
4737773 Graphical display apparatus having a coordinate correction circuit Apr. 12, 1988
4710758 Automatic touch screen calibration method Dec. 1, 1987
4672558 Touch-sensitive data input device Jun. 9, 1987
4650926 Electrographic system and method Mar. 17, 1987
4646073 Input-output coordinate transforming method and apparatus for input-integrated display Feb. 24, 1987
4523188 Automated map and display alignment Jun. 11, 1985

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