Proximity detection using multiple inputs

摘要

In one embodiment, a method includes determining, by a capacitive touch sensor of a device, a presence of an object; activating an optical sensor of the device in response to determining the presence of the object; and determining, by the optical sensor of the device, a touch or proximity input within a proximity-sensing volume.

主权项

1. A method comprising:
determining, by a capacitive sensor of a device, a presence of a physical object; activating one or more emitters of an optical sensor of the device in response to determining the presence of the physical object, wherein the optical sensor is operable to toggle, based on data received from the capacitive sensor, between an activated state and a deactivated state; determining, by the optical sensor of the device, a touch or proximity input within a proximity-sensing volume of the device, the touch or proximity caused by the physical object; and distinguishing a type of the physical object based on a signal strength from the capacitive sensor and a signal strength from the optical sensor, wherein the capacitive sensor is a capacitive touch sensor.