Patent ID: 11930231
Assignee: JCDECAUX SA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. An advertisement digital display server adapted to:
generating playlists based on advertisement display campaigns, each playlist being intended to be read by one or more of said digital display devices, each playlist comprising at least one series of identifiers of digital content items to be read sequentially over one or more predetermined time periods, but not comprising loading addresses of digital content items or digital fingerprints of digital content items, each digital display device corresponding to one specific playlist generated by said at least one server;
repetitively generating, for each digital display device, a download manifest comprising at least respective loading addresses of digital content items, said download manifests being larger files than said playlists and being generated less frequently than said playlists by said at least one server;
allow the digital display devices to update their playlists and download manifests, this updating comprising: polling said server at predetermined intervals in order to determine whether said at least one server has a new playlist corresponding to each digital display device and to determine whether said at least one server has a new download manifest corresponding to each digital display device, and if it is determined that said at least one server has a new playlist for said digital display device, then loading said new playlist on the digital display device; if it is determined that said at least one server has a new download manifest for said digital display device, then loading said new download manifest.