A method for moving a pointing cursor wherein the pointing cursor moving toward a target to be processed is temporarily halted when it enters an area of the target to be processed, and it is made to move beyond the area to be processed after a predetermined time has elapsed.

An assembly utilizable with a digitizer cursor for increasing the accuracy of position determinations, wherein the cursor has cross-hairs for enabling the positioning of the cursor at a desired point on a digitizing surface, comprises in combination a magnifying lens and a connector for mounting the magnifying lens to the cursor in a region near the cross-hairs of the cursor. The connector includes a cradle or holder attachable to the cursor and a mounting arm connected to the lens, the cradle a...

A method for controlling a three dimensional cursor's position on a display with a two dimensional control device by generating a translation signal to the display when the control device was moved in such a way as to indicate that the user intended a translation of the cursor and generating an elevation signal to the display when the control device was moved in such a way as to indicate that the user intended an elevation of the cursor. Analysis of the single movement alone, however, being only...

A graphical cursor in text mode is generated by replacing the characters on the display at positions under the cursor with new fonts comprising an image of the cursor superimposed on the image of the characters. The method of the present invention comprises the steps of: determining the new cursor position; restoring the characters at the old cursor position; saving a plurality of the characters near the new cursor position; building new fonts with the plurality of characters near the new cursor...

A cursor generator for an oscilloscope presents a cursor line or lines in juxtaposition with waveforms on an oscilloscope display, wherein the cursor is formed of a plurality of discrete points or dots. The deflection signal for generating the cursor is preferably supplied from the oscilloscope's character generator, while the analog positioning voltages for the cursor are also used in sweep delay comparison portion of the oscilloscope for initiating the oscilloscope's delayed sweep.

The present system includes an optical reflective sensor, which is hand held and moved over a color density scaled grid, such as a gray scale grid, to produce analog signals which, when processed, become the basis for the direction of movement of a screen cursor. The analog signals are converted into binary coded signals and further into hexadecimal signals. Each hexadecimal signal is transmitted to eight AND gates whose other inputs represent a (gray scaled) value of a position from where the s...

A cursor controller has a handle having first and second perpendicular slots disposed in different parallel planes. A first cross-slide is slidably mounted in the first slot and guides the motion of the handle along an x axis. A second cross-slide is slidably mounted in the second slot and guides the motion of the handle along a y axis. A first encoder strip mounted to the first cross-slide is provided together with a quadrature detector for sensing the direction and magnitude of movement of the...

A personal computer having an interactive all points addressable display thermal (44) and a cursor positioning device (52) is provided with apparatus for facilitating the generation of a graphics display. At least one table of selectable cursor characters is stored in memory (16), and from this table, any character can be selected to be the cursor character. The selected character is displayed as the cursor and movable to any point on the all points addressable display by the cursor positioning ...

A position control system is described for the control of cursor movement on a video display terminal or the like. The control system includes a wireless movable steering means which emits acoustic signals, tracking means adapted to receive the acoustic signals and determine the position of the steering means by hyperbolic triangulation, and communication means for communicating the position (either absolute position or relative movement) of the steering means to the video display terminal.

A method and apparatus for continuously updating a display of the coordinates of a light pen as it moves across a display screen involves executing a single iteration of an approximation calculation every refresh cycle of the display. The absolute screen coordinates are updated by the light pen tracking system and converted to application parameters written by the host computer into the display buffer work space. The orthogonal displacements, dx and dy, from a fixed reference point are determine...