System and method for interacting with a display through a display window
First Claim
1. A system for interacting with a display through a display window, comprising:
- a recording unit configured to be placed behind the display window for recording a pointer object in front of said display window;
at least one deflection unit configured to direct a beam path from a space in front of the display window to said recording unit;
a computer unit configured to be connected to said recording unit for determining a position of the pointer object with respect to the display window;
shield means by means of which beam paths that are not deflected by the deflection unit are suppressed.
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Abstract
The invention is related to a system for interacting with a display through a display window, comprising a recording unit configured to be placed behind the display window for recording a pointer object in front of said display window, at least one deflection unit configured to direct a beam path from a space in front of the display window to said recording unit, a computer unit configured to be connected to said recording unit for determining a position of the pointer object with respect to the display window, and shield means by means of which beam paths that are not deflected by the deflection unit are suppressed, and to a corresponding method. The invention achieves a good contrast between the pointer object and the background and therefore an improved recognition of the pointer object.
17 Citations
29 Claims
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1. A system for interacting with a display through a display window, comprising:
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a recording unit configured to be placed behind the display window for recording a pointer object in front of said display window; at least one deflection unit configured to direct a beam path from a space in front of the display window to said recording unit; a computer unit configured to be connected to said recording unit for determining a position of the pointer object with respect to the display window; shield means by means of which beam paths that are not deflected by the deflection unit are suppressed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22)
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21. Method for interacting with a display through a display window, comprising the following steps:
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recording a pointer object in front of said display window by means of a recording unit placed behind the display window; directing a beam path from a space in front of the display window to said recording unit by means of at least one deflection unit; determining a position of the pointer object with respect to the display window by means of a computer unit connected to said recording unit; suppressing beam paths that are not deflected by the deflection unit by means of shield means. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification