System and a method of determining a position of a scattering/reflecting element on the surface of a radiation transmissive element
First Claim
Patent Images
1. A system for determining a position of an element to at least one of scatter and reflect radiation, the system comprising:
- a radiation transmissive element having a first surface adapted to be engaged by the element and a second surface opposite to the first surface,a radiation provider adapted to provide radiation to or at the first surface in order for the element to be able to at least one of scatter and reflect radiation into the radiation transmissive element at the position on the first surface,one or more detectors for detecting at least one of scattered and reflected radiation, at the position at the first surface, into the radiation transmissive element and guided by the radiation transmissive element toward the one or more detectors and for outputting one or more corresponding signals,a touch controller configured to determine the position on the basis of the one or more corresponding signals from the one or more detectors, whereinthe touch controller is adapted to determine the position on the basis of at least one of properties and characteristics of the radiation detected by the one or more detectors, andthe radiation provider is adapted to provide radiation with at least one of different properties and characteristics to different portions of the first surface, at least one area of the first surface receiving radiation having at least two of the at least one different properties and characteristics, the radiation provider including,a plurality of radiation emitters each adapted to emit radiation through the second surface and onto the first surface, each radiation emitter or group of radiation emitters being controllable independently of other emitters or groups of emitters, and each radiation emitter including a radiation altering unit receiving radiation from one or more radiation emitters providing radiation to the radiation altering unit, whereinthe radiation altering unit includes a plurality of radiation altering elements, and each radiation emitter provides radiation to a plurality of radiation altering elements, no radiation altering elements receive radiation from more than one radiation emitter, and wherein properties of the radiation emitters are controllable independently of radiation altering properties of the individual radiation altering elements.
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Abstract
A system and a method of determining a position of a scattering/reflecting element on a surface of a radiation transmissive element adapted to transport scattered/reflected radiation toward one or more detectors. Radiation having different characteristics or properties is transmitted to different areas of the surface whereby the position of the touch may be determined from the radiation scattered/reflected.
83 Citations
36 Claims
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1. A system for determining a position of an element to at least one of scatter and reflect radiation, the system comprising:
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a radiation transmissive element having a first surface adapted to be engaged by the element and a second surface opposite to the first surface, a radiation provider adapted to provide radiation to or at the first surface in order for the element to be able to at least one of scatter and reflect radiation into the radiation transmissive element at the position on the first surface, one or more detectors for detecting at least one of scattered and reflected radiation, at the position at the first surface, into the radiation transmissive element and guided by the radiation transmissive element toward the one or more detectors and for outputting one or more corresponding signals, a touch controller configured to determine the position on the basis of the one or more corresponding signals from the one or more detectors, wherein the touch controller is adapted to determine the position on the basis of at least one of properties and characteristics of the radiation detected by the one or more detectors, and the radiation provider is adapted to provide radiation with at least one of different properties and characteristics to different portions of the first surface, at least one area of the first surface receiving radiation having at least two of the at least one different properties and characteristics, the radiation provider including, a plurality of radiation emitters each adapted to emit radiation through the second surface and onto the first surface, each radiation emitter or group of radiation emitters being controllable independently of other emitters or groups of emitters, and each radiation emitter including a radiation altering unit receiving radiation from one or more radiation emitters providing radiation to the radiation altering unit, wherein the radiation altering unit includes a plurality of radiation altering elements, and each radiation emitter provides radiation to a plurality of radiation altering elements, no radiation altering elements receive radiation from more than one radiation emitter, and wherein properties of the radiation emitters are controllable independently of radiation altering properties of the individual radiation altering elements. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for determining a position of an element to at least one of scatter and reflect radiation, the system comprising:
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a radiation transmissive element having a first surface adapted to be engaged by the element and a second surface opposite to the first surface, a radiation provider adapted to provide radiation to or at the first surface in order for the element to be able to at least one of scatter and reflect radiation into the radiation transmissive element at the position on the first surface, one or more detectors for detecting radiation that is at least one of scattered and reflected, at the position at the first surface, into the radiation transmissive element and guided by the radiation transmissive element toward the one or more detectors and for outputting one or more corresponding signals, a touch controller configured to determine the position on the basis of the one or more corresponding signals from the one or more detectors, wherein the touch controller is adapted to determine the position on the basis of attributes of the radiation detected by the one or more detectors, the attributes including at least one of properties and characteristics of the radiation detected by the one or more detectors, and the radiation provider is adapted to provide radiation with different attributes to different portions of the first surface, at least one area of the first surface receiving radiation having at least two of the different attributes, the radiation provider including, a plurality of radiation emitters each adapted to emit radiation through the second surface and onto the first surface, each radiation emitter or group of radiation emitters being controllable independently of other emitters or groups of emitters, and wherein the radiation provider is adapted to control the emitters so as to provide, through the second surface and onto the first surface of the radiation transmissive element, radiation representing a predetermined image, and wherein the radiation provider is further adapted to alter the emission of one or more radiation emitters by addition or subtraction of a predetermined intensity or wavelength, the touch controller being adapted to determine the position as a position in which the intensity or wavelength has been altered. - View Dependent Claims (9)
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10. A system for determining a position of an element to at least one of scatter and reflect radiation, the system comprising:
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a radiation transmissive element having a first surface adapted to be engaged by the element and a second surface opposite to the first surface, a radiation provider adapted to provide radiation to or at the first surface in order for the element to be able to at least one of scatter and reflect radiation into the radiation transmissive element at the position on the first surface, one or more detectors for detecting radiation that is at least one of scattered and reflected, at the position at the first surface, into the radiation transmissive element and guided by the radiation transmissive element toward the one or more detectors and for outputting one or more corresponding signals, a touch controller configured to determine the position on the basis of the one or more corresponding signals from the one or more detectors, wherein the radiation provider is adapted to provide radiation with different attributes to different portions of the first surface, at least one area of the first surface receiving radiation having at least two of the different attributes, the attributes including at least one of properties and characteristics of the radiation, the touch controller is adapted to determine the position on the basis of attributes of the radiation detected by the one or more detectors, and the touch controller is adapted to, determine a first position of a first element to at least one of scatter and reflect radiation, the first element engaging the first surface and a second position of a second element to at least one of scatter and reflect radiation, the second element engaging the first surface, and control the radiation provider to provide first radiation at or on the first position and second radiation at or on the second position, the first radiation having a first attribute or an attribute selected from a first group of attributes, and the second radiation having a second attribute or an attribute selected from a second group of attributes, the first and second attributes being different and the first and second groups of attributes having no attribute in common, track the first position on the basis of signals from the one or more detectors and relating to radiation having the first attribute or radiation having an attribute from the first group, and track the second position on the basis of signals from the one or more detectors and relating to radiation having the second attribute or radiation having an attribute from the second group.
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11. A method for determining a position of an element to at least one of scatter and reflect radiation, the method comprising:
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providing, from a radiation provider, radiation to or at a first surface of a radiation transmissive element, the first surface being adapted to be engaged by the element, and the radiation transmissive element having a second surface opposite to the first surface, the element at least one of scattering and reflecting radiation, at the position, from the radiation provider into the radiation transmissive element at the position on the first surface, detecting radiation at least one of scattered and reflected by the element and guided by the radiation transmissive element toward one or more detectors and providing one or more corresponding signals, determining the position on the basis of the one or more corresponding signals, wherein the radiation providing step comprises, providing radiation with different attributes to different portions of the first surface and providing radiation having at least two of the different attributes to at least one area, and providing each radiation emitter with a radiation altering element, all radiation altering elements receiving radiation from one or more radiation emitters providing radiation to a plurality of radiation altering elements, wherein the determining step comprises, determining the position on the basis of the attributes of the radiation detected, wherein each radiation emitter emits radiation through the second surface and onto the first surface, wherein each radiation emitter or group of radiation emitters are controlled independently of other emitters or groups of emitters, wherein each radiation emitter provides radiation to a plurality of radiation altering elements, no radiation altering elements receive radiation from more than one radiation emitter, and wherein properties of the radiation emitters are controlled independently of radiation altering properties of the individual radiation altering elements. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method for determining a position of an element to at least one of scatter and reflect radiation, the method comprising:
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providing, from a radiation provider, radiation to or at a first surface of a radiation transmissive element, the first surface being adapted to be engaged by the element, and the radiation transmissive element having a second surface opposite to the first surface, the element at least one of scattering and reflecting radiation, at the position, from the radiation provider into the radiation transmissive element at the position on the first surface, detecting radiation that is at least one of scattered and reflected by the element and guided by the radiation transmissive element toward the one or more detectors and providing one or more corresponding signals, determining the position on the basis of the one or more corresponding signals, wherein the radiation providing step includes, providing radiation with different attributes to different portions of the first surface and providing radiation having at least two of the different attributes to at least one area, the attributes including at least one of properties and characteristics of the radiation, emitters providing, through the second surface and onto the first surface of the radiation transmissive element, radiation representing a predetermined image, and altering the emission of one or more of the emitters by addition or subtraction of a predetermined intensity or wavelength, and wherein the determining step includes, determining the position on the basis of attributes of the radiation detected, and determining the position as a position in which the intensity or wavelength has been altered. - View Dependent Claims (19)
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20. A method for determining a position of an element to at least one of scatter and reflect radiation, the method comprising:
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providing, from a radiation provider, radiation to or at a first surface of a radiation transmissive element, the first surface being adapted to be engaged by the element, and the radiation transmissive element having a second surface opposite to the first surface, the element at least one of scattering and reflecting radiation, at the position, from the radiation provider into the radiation transmissive element at the position on the first surface, detecting radiation that is at least one of scattered and reflected by the element and guided by the radiation transmissive element toward one or more detectors and providing one or more corresponding signals, determining the position on the basis of the one or more corresponding signals, determining a first position of a first element to at least one of scatter and reflect radiation, and a second position of a second element to at least one of scatter and reflect radiation, providing first radiation at or on the first position and second radiation at or on the second position, the first radiation having a first attribute or an attribute selected from a first group of attributes, and the second radiation having a second attribute or an attribute selected from a second group of attributes, the first and second attributes being different and the first and second groups of attributes having no attribute in common, tracking the first position on the basis of one or more signals relating to detected radiation having the first attribute or radiation having an attribute from the first group, and tracking the second position on the basis of one or more signals relating to detected radiation having the second attribute or radiation having an attribute from the second group, wherein the radiation providing step includes providing radiation with different attributes to different portions of the first surface and providing radiation having at least two of the different attributes to at least one area, and wherein the determination step comprises determining the position on the basis of the attributes of the radiation detected.
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21. A system for determining a position of an element to at least one of scatter and reflect radiation, the system comprising:
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a radiation transmissive element having a first surface adapted to be engaged by the element and a second surface opposite to the first surface, a monitor or display comprising a plurality of controllable radiation emitters each being adapted to provide radiation through the radiation transmissive element from the second surface toward a predetermined area of the first surface, the monitor or display being adapted to control the emitters to provide radiation representing predetermined images on the first surface, one or more detectors for detecting radiation emitted by the monitor or display, at least one of scattered and reflected, at the position of the first surface, into the radiation transmissive element and guided by the radiation transmissive element toward the one or more detectors and for outputting one or more corresponding signals, a controller configured to determine the position on the basis of the one or more corresponding signals from the one or more detectors, wherein the monitor or display is adapted to control predetermined radiation emitters or groups of radiation emitters to alter at least one of a wavelength and intensity of radiation emitted thereby in order for at least one of the wavelength and intensity of the emitters to deviate from that of an actual predetermined image, wherein the controller is adapted to determine the position as a position in which the at least one of the intensity and wavelength is altered in relation to that of the predetermined image, wherein the monitor or display is adapted to, sequentially, for each of a number of groups of radiation emitters, alter between providing the at least one of the wavelength and intensity of the predetermined image and the altered at least one of the intensity and wavelength, and wherein the controller is adapted to determine the position on the basis of, a point in time in which the altered at least one of the intensity and wavelength is detected, a group of radiation emitters having altered the at least one of the intensity and wavelength at that point in time, and an area of the first surface in which a radiation emitter of the group of radiation emitters is adapted to provide radiation. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A method for determining a position of a element to at least one of scatter and reflect radiation, the method comprising:
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providing radiation through a radiation transmissive element, having a first surface adapted to be engaged by the element and a second surface opposite to the first surface, from the second surface toward a predetermined area of the first surface, the radiation being provided by a monitor or display comprising a plurality of controllable radiation emitters each providing radiation to a predetermined area of the first surface, the monitor or display controlling the emitters to provide radiation representing one or more predetermined images on the first surface, detecting radiation emitted by the monitor or display, at least one of scattered and reflected by the element, at the position of the first surface, into the radiation transmissive element and guided by the radiation transmissive element toward one or more detectors, and providing one or more corresponding signals, and determining the position on the basis of the one or more corresponding signals from the one or more detectors, wherein the monitor or display controls predetermined radiation emitters or groups of radiation emitters to alter at least one of wavelength and intensity of radiation emitted thereby so that the at least one of wavelength and intensity of the emitters deviate from that of an actual predetermined image, wherein the position is determined as a position in which the at least one of wavelength and intensity is altered in relation to that of the predetermined image, wherein the radiation emitters of each of a number of groups of radiation emitters, sequentially alter between providing the at least one of wavelength and intensity of the predetermined image and the altered at least one of intensity and wavelength, and wherein the position is determined on the basis of, a point in time in which the altered at least one of intensity and wavelength is detected, a group of radiation emitters having altered the at least one of wavelength and intensity at that point in time, and an area of the first surface in which a radiation emitter of the group of radiation emitters is adapted to provide radiation. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36)
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Specification