Optical Sensing Mechanisms for Input Devices
First Claim
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1. An input device for an electronic device, comprising:
- a user input surface movably connected to a substrate;
at least one light sensor operably connected to one of the user input surface or the substrate; and
a light source in selective communication with the at least one light sensor;
whereinwhen the user input surface is in a first position the at least one light sensor receives a first value of light from the light source; and
when the user input surface is in a second position the at least one light sensor receives a second value of light from the light source.
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Abstract
A computer or other electronic device including a processor and an input device, such as a track pad. The track pad being in communication with the processor and including a movable surface, a light source in communication with the processor, and an optical sensor in selective optical communication with the light source and in communication with the processor. The optical sensor detects movement of the movable surface by receiving light from the light source.
46 Citations
20 Claims
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1. An input device for an electronic device, comprising:
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a user input surface movably connected to a substrate; at least one light sensor operably connected to one of the user input surface or the substrate; and a light source in selective communication with the at least one light sensor;
whereinwhen the user input surface is in a first position the at least one light sensor receives a first value of light from the light source; and when the user input surface is in a second position the at least one light sensor receives a second value of light from the light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A computer comprising:
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a processor; and a track pad in communication with the processor, the track pad comprising; a movable surface; a light source in communication with the processor; and an optical sensor in selective optical communication with the light source and in communication with the processor;
whereinthe optical sensor detects movement of the movable surface by receiving light from the light source. - View Dependent Claims (15, 16, 17)
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18. A method for tracking movement of an input device for an electronic device, comprising:
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emitting a light from a light source; detecting by an optical sensor a first light value corresponding to a first position of the input device; and detecting by the optical sensor a second light value corresponding to the second position of the input device. - View Dependent Claims (19, 20)
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Specification