Patent ID: 9681188
Date: 2017-06-13
CPC Classifications: G06K,H04N

Claim:
1. A method for operating a display device, comprising: acquiring an image of a plurality of users, wherein the plurality of users comprises a first user and a second user; recognizing a plurality of faces respectively corresponding to the plurality of users from the acquired image; checking a viewing state of media content for each user, if the plurality of users respectively corresponding to the plurality of recognized faces are registered users; acquiring viewing information corresponding to at least one of the plurality of registered users of which the viewing state has been changed from a viewing maintaining state in which the media content is viewed to a not-viewing state in which the media content is not viewed, wherein the viewing information comprises information on a channel corresponding to the media content, a title of the media content and a last viewing time point indicating a time point in an entire playback interval of the media content of which a user that has a viewing state that has been changed most recently viewed the media content; receiving information related to a state of a mobile terminal corresponding to the first user, if the viewing state of the second user has been changed from the viewing maintaining state to the not-viewing state and the viewing state of the first user keeps the viewing maintaining state; storing the acquired viewing information and the received information related to the state of the mobile terminal in an account of the first user; displaying the received information related to the state of the mobile terminal and the media content simultaneously; comparing the acquired first viewing information corresponding to the first user with the acquired second viewing information corresponding to the second user if a face of the first user of which the viewing state has been changed and a face of the second user which the viewing state has been changed are simultaneously re-recognized; and displaying common information according to a result of the comparison, wherein the common information is information commonly included in the first viewing information and the second viewing information.