System and methods for calibrating a digitizer system
First Claim
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1. A method of calibrating a digitizer system having a substrate with photoluminescent indicia that uniquely identify local areas of a substrate, with a display, the method of calibrating the digitizer system with the display comprising:
- providing a processor communicatively coupled to the display and an electronic sensing device, wherein the processor is adapted to control images displayed on the display, wherein the processor causes a first localized area of the display to radiate, and wherein the electronic sensing device is a stylus having a field-of-view and comprising different first and second light sources, the stylus being configured to operate in a plurality of modes, the plurality of modes comprising;
a first mode for reading photoluminescent indicia wherein the first light source is turned off and the second light source is turned on;
a second mode for reading light absorbing indicia on a light diffusing or reflective substrate wherein the first light source is turned on and the second light source is turned off; and
a third mode for reading indicia displayed on the display wherein the first and second light sources are turned off; and
receiving, into the electronic sensing device, radiation from the first localized area of the display and radiation emitted from a photoluminescent indicium associated with the first localized area.
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Abstract
Systems and methods for calibrating a photoluminescent indicia-based digitizer system with a display, the photoluminescent indicia uniquely identifying local areas of a substrate.
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Citations
26 Claims
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1. A method of calibrating a digitizer system having a substrate with photoluminescent indicia that uniquely identify local areas of a substrate, with a display, the method of calibrating the digitizer system with the display comprising:
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providing a processor communicatively coupled to the display and an electronic sensing device, wherein the processor is adapted to control images displayed on the display, wherein the processor causes a first localized area of the display to radiate, and wherein the electronic sensing device is a stylus having a field-of-view and comprising different first and second light sources, the stylus being configured to operate in a plurality of modes, the plurality of modes comprising;
a first mode for reading photoluminescent indicia wherein the first light source is turned off and the second light source is turned on;
a second mode for reading light absorbing indicia on a light diffusing or reflective substrate wherein the first light source is turned on and the second light source is turned off; and
a third mode for reading indicia displayed on the display wherein the first and second light sources are turned off; andreceiving, into the electronic sensing device, radiation from the first localized area of the display and radiation emitted from a photoluminescent indicium associated with the first localized area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A digitizer system comprising:
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an electronically addressable display; a substrate having photoluminescent indicia that uniquely define local areas of the substrate, wherein the substrate is coupled to the display; a sensing unit that senses the photoluminescent indicia; a processor communicatively coupled to the display and the sensing unit, the processor adapted to control images displayed on the display; wherein the processor causes a first localized area of the display to radiate while receiving signals indicative of radiation input received from the sensing unit sensing at least one photoluminescent indicium associated with the first localized area; wherein the processor computes calibration data based on the received signals, the calibration data associating localized areas of the substrate to the display; and wherein the sensing unit is a stylus having a field-of-view and comprising different first and second light sources, the stylus being configured to operate in a plurality of modes, the plurality of modes comprising;
a first mode for reading photoluminescent indicia wherein the first light source is turned off and the second light source is turned on;
a second mode for reading light absorbing indicia on a light diffusing or reflective substrate wherein the first light source is turned on and the second light source is turned off and a third mode for reading indicia displayed on the display wherein the first and second light sources are turned off. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification