KEYPAD WITH OPTICAL SENSORS
First Claim
Patent Images
1. A device comprising:
- a keypad having keycaps, each keycap having a top surface;
one or more optical sensors located beneath top surfaces of adjacent keycaps; and
,one or more light guides, each of the one or more light guides extending from a respective optical sensor towards the top surfaces.
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Abstract
A keypad with optical sensors is provided. The keypad comprises keycaps, each keycap having a top surface. One or more optical sensors are located beneath top surfaces of adjacent keycaps. One or more light guides extend from a respective optical sensor towards the top surfaces.
15 Citations
20 Claims
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1. A device comprising:
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a keypad having keycaps, each keycap having a top surface; one or more optical sensors located beneath top surfaces of adjacent keycaps; and
,one or more light guides, each of the one or more light guides extending from a respective optical sensor towards the top surfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification