Patent Document ID: 8994499
Application ID: 13049614
Patent Status: 1

Claim One:
1. A method for automatically unlocking a mobile device having a camera, comprising: capturing an initial image using the camera while the device is locked; monitoring a motion state of the mobile device to determine whether the device is moving or is motionless; while the device is locked, detecting movement representative of intended movement of the device; in response to detecting the movement of the device, capturing a new image using the camera; determining that the device moved to a use position by comparing the new image with the initial image and comparing a movement pattern to movement patterns indicating that a user is likely to want to use the device; in response to determining that the device is in the use position, capturing one or more subsequent images using the camera; analyzing the one or more subsequent images to detect a user's face; and in response to detecting the user's face, unlocking the device.