Patent ID: 7728712

Claim:
A digital communication system for distributing ongoing content and override content to a plurality of display units, the system comprising: at least one display unit divided into two or more regions, each of said regions being capable of displaying a different input signal or stream carrying ongoing or override content; and an override controller for receiving an override control signal and for retrieving override content from an override media source; and a content distribution controller for controlling ongoing content for dissemination to the display units; and for overriding, on receipt of the override control signal from the override controller, at least one of the input signals or streams carrying ongoing content with an input signal or stream carrying override content; wherein at least one region of the at least one display unit is for displaying ongoing content directed to advertising, while a second region is for displaying ongoing content not directed to advertising; wherein the override content is displayed only on the at least one region of the display unit for displaying ongoing content not directed to advertising.