Patent ID: 7302089

Claim:
An apparatus adapted for a mobile device, comprising: a memory to store a visual signature; and a processor, that performs actions, including: in response to an event, enabling a sensor array to receive an image based on at least one peek at a scene adjacent to the mobile device; and if the received image is determined to be substantially related to the visual signature, enabling the mobile device to change from the standby mode to an active mode, wherein the mobile device consumes relatively less power when operating in the standby mode than when operating in the active mode; and if the mobile device is enabled to change from the standby mode to the active mode, employing the sensor array to receive another image based on another peek at the scene adjacent to the mobile device, wherein the other received image is a relatively higher resolution than a relatively lower resolution of the received image; if the other received image is determined to be unrelated to the visual signature, enabling the mobile device to remain in the standby mode.