Abstract: A height dependent filter for a pointing device or digitizer tablet, a method of reducing jitter in position data of a pointing device, and a computer readable medium are provided. A method of stabilizing positional data in a digitizer tablet associated with a display device for reporting a position of a pointer includes detecting a current location of the pointer with respect to a coordinate grid defined on the tablet and outputting a position signal indicative of the current pointer location. Noise is filtered from the position signal based on at least one filter parameter. A distance between the pointer and a point on the tablet is determined, and an amount of jitter in the position signal is determined based on the determined distance. The at least one filter parameter is adjusted based on the estimated amount of jitter.

Abstract: A graphical user interface for displaying actions of an input device on a display is provided. The interface includes a radial menu having an origin disposed at a center thereof and at least a first wedge defining an area extending outwardly from the origin. The first wedge is associated with a variable that is capable of being set to a value between a predetermined minimum value and a predetermined maximum value. A cursor for indicating a current position of the input device on the display is provided in the interface. The cursor is movable within the first wedge to select a current value of the variable based upon the angular position of the cursor with respect to said origin. A radial menu, computer system, and method are also provided.

Abstract: A graphical user interface for displaying actions of an input device on a display is provided. The interface includes a radial menu having an origin disposed at a center thereof and at least a first wedge defining an area extending outwardly from the origin. The first wedge is associated with a variable that is capable of being set to a value between a predetermined minimum value and a predetermined maximum value. A cursor for indicating a current position of the input device on the display is provided in the interface. The cursor is movable within the first wedge to select a current value of the variable based upon the angular position of the cursor with respect to said origin. A radial menu, computer system, and method are also provided.

Abstract: A height dependent filter for a pointing device or digitizer tablet, a method of reducing jitter in position data of a pointing device, and a computer readable medium are provided. A method of stabilizing positional data in a digitizer tablet associated with a display device for reporting a position of a pointer includes detecting a current location of the pointer with respect to a coordinate grid defined on the tablet and outputting a position signal indicative of the current pointer location. Noise is filtered from the position signal based on at least one filter parameter. A distance between the pointer and a point on the tablet is determined, and an amount of jitter in the position signal is determined based on the determined distance. The at least one filter parameter is adjusted based on the estimated amount of jitter.