Patent ID: 7764280

Claim:
A content display system comprising: a displaying device; a controlling device for controlling said displaying device to display, in accordance with a schedule in which at least content or contents to be displayed on said displaying device are specified with display period or periods of the content or contents to be displayed, the specified content or contents during the specified display period or periods, respectively; a pattern setting device for individually assigning video pattern or patterns in predetermined type or types to monitoring-target content or contents including at least one of the specified content or contents; a display period setting device for setting the display period or periods of the assigned video pattern or patterns in association with the display period or periods specified to the monitoring-target content or contents with the video pattern or patterns assigned, respectively; and a merging device for merging the assigned video pattern or patterns with the monitoring-target content or contents in at least one portion of the set display period or periods, said controlling device further controlling said displaying device to display the monitoring-target content or contents with the video pattern or patterns merged, if the video pattern or patterns are merged with the monitoring-target content or contents, said content display system further comprising: a detecting device for detecting the video pattern or patterns through display performed by said displaying device in such period or periods that the monitoring-target content or contents with the video pattern or patterns merged are displayed; and a judging device for judging whether or not the monitoring-target content or contents with the video pattern or patterns merged are displayed during the specified display period or periods on the basis of the detected video pattern or patterns.