Remote Sensitivity Adjustment in an Interactive Display System
AssigneeInterphase Corporation
InventorsYoram Solomon, Branislav Kisacanin
Life of this patent
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Abstract
An interactive display system and method of operating the same including a remote pointing device for controlling items displayed at a display, in which movement of the device is adjusted according to distance from the display. Distance of the device from the display is determined, and a sensitivity reduction factor corresponding to that distance is calculated. Physical movement of the device is interpreted as movement of a cursor position at the display, with the extent of that movement adjusted according to the sensitivity reduction factor. An additional sensitivity reduction factor corresponding to the speed of movement of the device may also be incorporated into the adjustment of the cursor position.
Claims22
A method of operating a computer system including a display, comprising the steps of:
- from a distance away from the display, pointing a handheld human interface device at a location of the display;
- identifying a point-to location on the display corresponding to the location of the display at which the device is pointing;
- determining the range of the device from the display;
- determining a sensitivity reduction factor responsive to the range;
- and
- responsive to movement of the device, moving a cursor position at the display in a direction corresponding to the movement, by an amount corresponding to the magnitude of the movement of the device adjusted by the sensitivity reduction factor.
An interactive display system, comprising:
- a computer for generating display image data to be displayed on a display;
- graphics output circuitry for generating graphics output signals corresponding to the display image data in a format suitable for display;
- a pointing device, comprising:
- a hand-held housing;
- and
- one or more sensors for detecting movement of the pointing device;
- and
- positioning circuitry for determining a cursor position of the display at which the pointing device is to control by movement, the positioning circuitry arranged to carry out a plurality of operations comprising:
- identifying a point-to location on the display corresponding to the location of the display at which the pointing device is aimed;
- determining the range of the pointing device from the display;
- determining a sensitivity reduction factor responsive to the range;
- and
- responsive to movement of the pointing device, moving a cursor position in a direction corresponding to the movement, by an amount corresponding to the magnitude of the movement of the pointing device adjusted by the sensitivity reduction factor.
Dependencies are inferred from the claim text.