Signal processing for touch and hover sensing display device
First Claim
1. A touch and hover sensing display device comprising:
- a touch and hover sensing panel having multiple sensors configured to detect one or more objects proximate to the panel, wherein the sensing panel is capable of detecting one or more objects touching the panel for a touch event, one or more objects hovering over the panel for a hover event, and objects concurrently touching and hovering over the panel for touch and hover events; and
a touch and hover control system configured to;
process signals indicative of the touch and hover events so as to determine a pointer location on the panel to which one of the proximate objects that is hovering over the panel is pointing, wherein the determined pointer location on the panel changes as a function of a distance at which the one proximate object is hovering over the panel,in accordance with a determination that the one proximate object points in a first direction, the pointer location shifts in the first direction in response to an increase in the distance at which the one proximate object is hovering over the panel, andin accordance with a determination that the one proximate object points in a second direction, the pointer location shifts in the second direction in response to an increase in the distance at which the one proximate object is hovering over the panel, the second direction different from the first direction.
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Abstract
Signal processing for a touch and hover sensing display device is disclosed. A touch and hover sensing display device can include a sensing panel for sensing a touch or hover event, a display for displaying graphical information to select based on the touch or hover event, and a control system for processing a signal indicative of the touch or hover event. The control system can process the signal to determine to which display location a hovering object is pointing according to a profile of the object'"'"'s shape. In addition or alternatively, the control system can process the signal to differentiate between a close small object and a distant large object so as to subsequently perform intended actions of the device based, at least in part, on the object distance and/or area (or size). The display can be positioned at a desirable distance from the panel so as to reduce interference from the display to the panel and avoid adverse effects on the signal.
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Citations
19 Claims
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1. A touch and hover sensing display device comprising:
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a touch and hover sensing panel having multiple sensors configured to detect one or more objects proximate to the panel, wherein the sensing panel is capable of detecting one or more objects touching the panel for a touch event, one or more objects hovering over the panel for a hover event, and objects concurrently touching and hovering over the panel for touch and hover events; and a touch and hover control system configured to; process signals indicative of the touch and hover events so as to determine a pointer location on the panel to which one of the proximate objects that is hovering over the panel is pointing, wherein the determined pointer location on the panel changes as a function of a distance at which the one proximate object is hovering over the panel, in accordance with a determination that the one proximate object points in a first direction, the pointer location shifts in the first direction in response to an increase in the distance at which the one proximate object is hovering over the panel, and in accordance with a determination that the one proximate object points in a second direction, the pointer location shifts in the second direction in response to an increase in the distance at which the one proximate object is hovering over the panel, the second direction different from the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification