Input method for surface of interactive display
First Claim
1. A method for detecting an object or user input provided with an object, where the object is on or adjacent to an interactive display surface, using a scanning light source, comprising the steps of:
- (a) illuminating the interactive display surface with a scanning light source, wherein the scanning light source is configured to emit light of a predetermined wavelength and to scan at least a portion of the interactive display surface with the light of the predetermined wavelength, so that at least the portion of the interactive display surface is fully scanned over time; and
(b) detecting light of the predetermined wavelength that is reflected from an object that is on or adjacent to the interactive display surface, the light that is reflected being detected as the scanning light source is illuminating the object with the light of the predetermined wavelength.
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Accused Products
Abstract
An interactive display system configured for detecting an object or user input provided with an object. The system includes a display surface on which graphic images are displayed, one or more scanning light sources configured for scanning the interactive display surface, and a light detector configured for detecting light reflected from an object that is adjacent to or in contact with the interactive display surface. A computing system storing machine instructions is in communication with the scanning light source and the light detector. When executed, the machine instructions cause the computing system to illuminate the interactive display surface with the scanning light source, to detect light with the light detector that is reflected from an object after illumination with the light source, and to generate an output signal based on the detected light that has been reflected from an object on or adjacent to the interactive display surface.
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Citations
20 Claims
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1. A method for detecting an object or user input provided with an object, where the object is on or adjacent to an interactive display surface, using a scanning light source, comprising the steps of:
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(a) illuminating the interactive display surface with a scanning light source, wherein the scanning light source is configured to emit light of a predetermined wavelength and to scan at least a portion of the interactive display surface with the light of the predetermined wavelength, so that at least the portion of the interactive display surface is fully scanned over time; and
(b) detecting light of the predetermined wavelength that is reflected from an object that is on or adjacent to the interactive display surface, the light that is reflected being detected as the scanning light source is illuminating the object with the light of the predetermined wavelength. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An interactive display system for detecting an object on or adjacent to a user interface surface, comprising:
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(a) an interactive display surface on which graphic images are displayed;
(b) at least one scanning light source, the scanning light source configured for scanning at least a portion of the interactive display surface so that at least the portion of the interactive display surface is fully scanned over time;
(c) a light detector configured for detecting light reflected from an object that is adjacent to or in contact with the interactive display surface;
(d) a computing system in communication with the scanning light source and the light detector, the computing system including a processor, and a memory in communication with the processor, the memory storing machine instructions that cause the processor to carry out a plurality of interactive display functions, including;
(i) illuminating at least a portion of the interactive display surface with the at least one scanning light source;
(ii) detecting light associated with the scanning light source that is reflected from an object that is on or adjacent to the interactive display surface with the light detector while the scanning light source is illuminating the portion of the interactive display surface; and
(iii) generating an output signal based on the detected light that is reflected from an object that is on or adjacent to the interactive display surface. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for receiving user input to an interactive display that is configured to detect objects on or adjacent to an interactive display surface, comprising the step of:
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(a) associating each of a plurality of scanning light sources with one or more of a plurality of different surface area portions of the interactive display surface wherein a combination of the different surface area portions substantially describes a portion of the interactive display surface usable for receiving user input;
(b) illuminating each of the different surface area portions of the interactive display surface with at least one of the plurality of scanning light sources within a predetermined time interval;
(c) detecting light that is reflected from one or more objects that are on or adjacent to at least one of the different surface area portions, wherein at least one of the plurality of scanning light sources provides a source for the light that is reflected when the scanning light source is providing illumination;
(d) generating a plurality of object detection signals based on the step of detecting light from one or more objects that are on or adjacent to each of the plurality of different surface area portions, wherein the plurality of light detection signals describes light reflected from the one or more objects; and
(e) processing the plurality of object detection signals to receive the user input, wherein the user input is associated with light reflected from one or more objects that are on or adjacent to the interactive display surface. - View Dependent Claims (20)
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Specification