A method for handling a cursor during a graphics drawing routine that eliminates the need to insert cursor handling code into graphics function definitions. The method coordinates the placement of the cursor in screen memory with the reading out of the scan lines containing the cursor. During this time, the cursor background is saved in offscreen memory. The cursor is protected by a cursor violation region, and drawing may continue while the cursor is in screen memory so long as the cursor viola...

The present invention comprises a signal generator for sending an electrical signal from an expandable, flexible layer of material, the signal generator comprising an upper layer of flexible, resilient material and a lower layer of flexible, resilient material which between them define a cavity for enclosing an expandable material such as a cellular foam or gas, whereupon localized distortion of one of the layers of flexible material, effects a signal generation within the structure, which is tr...

A system controls acquisition of visual targets with a cursor in a visual display displaced on a screen. A coordinate system is provided which is associated with the screen. A pointer is also provided which is associated with the cursor and which comprises a plurality of points in the coordinate system which define a cursor hot spot. The pointer is moved within the coordinate system based on position information from a user input device. A target region is provided in the coordinate system. The ...

An improved raster engine adapted to render video data from a frame buffer to one of a plurality of disparate displays is disclosed which comprises an integral bounded video signature analyzer, a hardware cursor apparatus supporting dual scanned displays, programmatic support for multiple disparate display types, multi-mode programmable hardware blinking, programmable multiple color depth digital display interface, and programmable matrix controlled grayscale generation.

Control arrangement for a cursor (140) on a screen or a display for a computer (130), comprising a hand unit (10) with two sensing elements (20, 30) adapted to be applied on two of the fingers of the user, suitably along the thumb and forefinger, where the intersecting point (80) between the sensing elements controls the position of the cursor. The sensing elements are connected to a processing unit for the determination of the intersecting point between the threads when they are situated next t...

Conventional scroll bars in a graphical user interface are replaced by a scroll indicating cursor. A customary cursor is augmented with indicators that appear to the sides of the cursor in the directions in which scrolling will allow additional information to be displayed. Scrolling is actuated by moving a cursor to an edge of the display in the direction of a visible indicator until the indicator is at least partially beyond the edge of the display. Less display area is required than with scrol...

A cursor tool is assigned to a cursor and a first cursor control event is performed. If a predetermined time interval expires before a second cursor control event is performed, the cursor tool is activated. The first cursor control event may be a mouse down event and the second cursor control event may be a mouse up event. In another embodiment, a plurality of cursor tools are assigned to a cursor and a sequence of cursor control events are recognized. The sequence may begin with a mouse down ev...

A control device suitable for controlling the position of a cursor on a computer display. The device includes at least a pair of optical radiation sources irradiating a spaced away pair of optical radiation detectors. Interposed between the sources and detectors is an elongate member moveable transverse to the paths of radiation between sources and detectors. The member is opaque to the radiation and it obscures radiation detected by the detectors dependant upon its position. Thus the outputs of...

The present invention provides a cursor control device for use in three dimensional space. The cursor control device is based on point and click technology such that a user points a remote member of the cursor control device to a television assembly and depresses appropriate keys for corresponding functions. In particular, a mouse key on the remote member enables control of cursor movement functioning of a cursor displayed through the television assembly. A base unit portion of the present inven...

A method, a front-of-screen graphical display system, and a computer program product for controlling the speed sensitivity of a GUI cursor. GUI objects, such as icons, occupy predetermined areas of the display. First and second preselected velocity settings are provided for the cursor. A determination is made whether the cursor is located within one of the object areas of the display. If, 1) the cursor is located outside one of the object areas, the speed sensitivity for movement of the cursor b...