OPTICAL TOUCH SYSTEM
First Claim
1. An image system comprising:
- a light source configured to illuminate an object comprising at least one portion;
an image sensing device configured to generate a picture comprising an image produced by the object, wherein the image comprises at least one part corresponding to the at least one portion of the object; and
a computing apparatus configured to determine an intensity value representing the at least one part of the image and to determine at least one distance between the at least one portion of the object and the image sensing device using the intensity value and a dimension of the at least one part of the image.
1 Assignment
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Accused Products
Abstract
An image system comprises a light source, an image sensing device, and a computing apparatus. The light source is configured to illuminate an object comprising at least one portion. The image sensing device is configured to generate a picture comprising an image. The image is produced by the object and comprises at least one part corresponding to the at least one portion of the object. The computing apparatus is configured to determine an intensity value representing the at least one part and to determine at least one distance between the at least one portion and the image sensing device using the intensity value and a dimension of the at least one part of the image.
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Citations
35 Claims
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1. An image system comprising:
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a light source configured to illuminate an object comprising at least one portion; an image sensing device configured to generate a picture comprising an image produced by the object, wherein the image comprises at least one part corresponding to the at least one portion of the object; and a computing apparatus configured to determine an intensity value representing the at least one part of the image and to determine at least one distance between the at least one portion of the object and the image sensing device using the intensity value and a dimension of the at least one part of the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An image system comprising:
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a light source configured to illuminate an object comprising a first portion and a second portion connected with the first portion, wherein the first portion comprises reflectance different from that of the second portion; an image sensing device configured to generate a picture comprising an image produced by the object, the image comprising a first part corresponding to the first portion of the object and a second part corresponding to the second portion of the object; and a computing apparatus configured to determine reflectance of the second portion of the object using an intensity value representing the first part of the image and an intensity value representing the second part of the image. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. An image system comprising:
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a light source configured to illuminate an object; an image sensing device configured to generate, in sequence, a first picture and a second picture respectively comprising an image produced by the object; and a computing apparatus configured to determine a distance between the object and the image sensing device by the image of the first picture, to determine a first intensity value representing the image of the first picture and a second intensity value representing the image of the second picture and corresponding to the first intensity value, and to determine a travel distance of the object from the time that the first picture is generated until the time that the second picture is generated using the first intensity value, the second intensity value, and the distance. - View Dependent Claims (23, 24, 25, 26, 27)
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28. An image system comprising:
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a light source configured to illuminate an object comprising a plurality of portions; an image sensing device configured to generate a plurality of pictures with each comprising an image produced by the object and each image comprising a plurality of parts corresponding to the plurality of portions; and a computing apparatus configured to generate motion signals corresponding to the plurality of portions of the object according to changes in positions and intensity values of the plurality of parts of the images. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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Specification