Patent ID: 8478353

Claim:
A method comprising: detecting an object proximate a mobile device using a proximity sensor of the mobile device; determining the mobile device is in an approximately vertical orientation using an accelerometer of the mobile device; automatically turning off a display of the mobile device in response to detecting the object proximate the mobile device and detecting the mobile device is in the approximately vertical orientation; receiving, by a microphone of the mobile device, one or more signals indicating audible input by a user of the mobile device while the display of the mobile device is turned off; determining the mobile device is in an approximately horizontal orientation using the accelerometer; and automatically turning on the display, wherein automatically turning on the display occurs only after the display was turned off responsive to the object being proximate the mobile device and the orientation of the mobile device previously comprising the approximately vertical orientation, and wherein the orientation of the mobile device is determined as approximately horizontal using the accelerometer when an angle between a vector generally parallel to a major surface of the mobile device and a projection of the vector onto a plane that is generally perpendicular to a direction of gravity is less than or equal to approximately 50 degrees.