VIRTUAL TOUCH SCREEN
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus and methods are provided for converting a display into a touch display. One or more optical sensors are arranged proximate the display. A processor receives a signal from the optical sensor(s) and, based on the signal, executes instructions for: (i) determining a distance between a pointer device and a surface of the display signal; (ii) determining a position of the pointer device on the surface of the display; (iii) when the distance is less than a threshold detection distance and greater than a threshold touch distance, providing an indication on the display that the position of the pointer device has been determined; and (iv) when the distance is less than the threshold touch distance, taking an action indicative of contact between the pointer device and the surface of the display.
2 Citations
46 Claims
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1-26. -26. (canceled)
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27. A system comprising:
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at least one laser projector aimed in a direction substantially parallel to a surface of a display; at least one camera positioned proximate the display; and a processor configured to receive a signal from the at least one camera and, based thereon, perform operations comprising; determining a position of a pointer device in front of the display; and adjusting an image presented on the display based on the determined position. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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39. A method comprising:
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projecting laser light from at least one laser projector aimed in a direction substantially parallel to a surface of a display; receiving a signal from at least one camera positioned proximate the display; determining, based on the signal, a position of a pointer device in front of the display; and adjusting an image presented on the display based on the determined position. - View Dependent Claims (40, 41, 42, 43, 44, 45)
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46. An article, comprising:
a non-transitory computer-readable medium having instructions stored thereon that, when executed by one or more computer processors;
cause the computer processors to perform operations comprising;receiving a signal from at east one camera positioned proximate a surface of a display, wherein the at least one camera is configured to obtain an image of a pointer device near the display while at least one laser projector is aimed in a direction substantially parallel to the surface of the display; determining, based on the signal, a position of the pointer device in front of the display; and adjusting an image presented on the display based on the determined position.
Specification