Patent ID: 8515491

Claim:
A method for displaying content on a mobile device, the method comprising: obtaining content to display on the mobile device; obtaining distance information indicative of a distance that separates a user from the mobile device, wherein obtaining distance information includes: capturing an image of the user with a camera of the mobile device; and determining a ratio of a size of the user's face in the image to a size of the image as a whole, the ratio indicating a distance that separates the user from the mobile device; accessing content-size data on the mobile device that is associated with the distance information, wherein accessing content-size data on the mobile device includes accessing data that associates the ratio of the size of the user's face with a content-size; adjusting a presentation of content on the mobile device based upon the content-size data; prompting, during a calibration phase, a user to hold the mobile device at each of a plurality of distances from the user; determining the ratio of the size of the user's face in a calibration image to a size of the calibration image as a whole; and obtaining, from the user, content-size information for each of the plurality of distances from the user.