Passive light stylus and user input device using same
First Claim
1. A stylus for use with a user input device, comprising:
- a housing comprising an entrance aperture configured to collect ambient light and an exit aperture configured to emit the collected light, wherein the exit aperture is proximate a tip of the stylus; and
a light guide disposed within the housing, wherein the light guide is in optical communication with the entrance aperture and the exit aperture such that the light guide directs collected light from the entrance aperture to the exit aperture;
wherein the stylus produces a defined intensity profile detectable by the user input device when at least a portion of the tip of the stylus is proximate an input surface of the user input device.
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Accused Products
Abstract
The present disclosure provides a passive light stylus that produces a defined intensity profile detectable by a user input device when at least a portion of a tip of the stylus is proximate an input surface of the user input device. In some embodiments, the stylus includes a housing including an entrance aperture configured to collect ambient light and an exit aperture configured to emit the collected light, where the exit aperture is proximate a tip of the stylus. The stylus also includes a light guide disposed within the housing, where the light guide is in optical communication with the entrance aperture and the exit aperture such that the light guide directs collected light from the entrance aperture to the exit aperture.
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Citations
34 Claims
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1. A stylus for use with a user input device, comprising:
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a housing comprising an entrance aperture configured to collect ambient light and an exit aperture configured to emit the collected light, wherein the exit aperture is proximate a tip of the stylus; and
a light guide disposed within the housing, wherein the light guide is in optical communication with the entrance aperture and the exit aperture such that the light guide directs collected light from the entrance aperture to the exit aperture;
wherein the stylus produces a defined intensity profile detectable by the user input device when at least a portion of the tip of the stylus is proximate an input surface of the user input device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A user input device, comprising:
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a plurality of light sensors disposed to detect light transmitted through an input surface of the user input device;
a stylus configured to collect ambient light and emit the collected light through a tip of the stylus, wherein the stylus produces a defined intensity profile detectable by the user input device when at least a portion of the tip of the stylus is proximate the input surface of the user input device; and
electronics coupled to the plurality of light sensors and configured to determine the location of the defined intensity profile produced by the stylus at a reference plane. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. An electronic display system, comprising:
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a user input device, wherein the user input device comprises;
a plurality of light sensors disposed to detect light transmitted through an input surface of the user input device;
a stylus configured to collect ambient light and emit the collected light through a tip of the stylus, wherein the stylus produces a defined intensity profile detectable by the plurality of light sensors of the user input device when at least a portion of the tip of the stylus is proximate the input surface of the user input device; and
electronics coupled to the plurality of light sensors and configured to determine the location of the defined intensity profile produced by the stylus at a reference plane; and
an electronic display disposed to display information through the input surface of the user input device. - View Dependent Claims (30, 31, 32, 33)
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34. A method for using an input device, comprising:
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providing a stylus configured to collect ambient light and emit the collected light through a tip, wherein the stylus produces a defined intensity profile;
providing an input device comprising a plurality of light sensors disposed to detect the defined intensity profile produced by the stylus when the defined intensity profile is transmitted through an input surface of the input device;
positioning the stylus proximate the input surface of the input device;
detecting the defined intensity profile only when at least a portion of the tip of the stylus is proximate the input surface of the input device; and
determining the location of the defined intensity profile at a reference plane.
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Specification