Keypad with optical sensors

摘要

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.

主权项

1. A device comprising:
a display; a keypad having keycaps, each keycap having a top surface; a plurality of optical sensors located beneath top surfaces of adjacent keycaps, the plurality of optical sensors are arranged in a grid, each of the plurality of optical sensors located between respective adjacent keycaps; a plurality of light guides, each of the plurality of light guides extending from a respective optical sensor towards the top surfaces; at least one decoration bar between the adjacent keycaps, the at least one decoration bar including the plurality of light guides; and, a processor in communication with the plurality of optical sensors and the display, the processor configured to convert detection events at adjacent optical sensors that occur within a given time period to gesture based events at the display.