Patent ID: 7146567

Claim:
A system for dynamic display of advertising material, comprising: a plurality of input sources for receiving scheduling information and advertising material in the form of at least one image object for scheduling display of said advertising material during an allocated time slot; a database for storing said at least one image object; a server for managing said advertising material in accordance with said scheduling information; and at least one billboard located in a public space accessible by the public for displaying to the public said at least one image object during said allocated time slot and, prior to expiry of said allocated time slot, triggering a communication session with said server where the server is responsive to a request initiated by said billboard and without requiring the billboard to continuously listen for a request from the server to upload and display a further image object during a respective further time slot which results in a secure communication with the server, wherein said billboard is visible to the server only upon said triggering of the communication session.