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

Claim 16:
17. An advertisement digital display device comprising a digital screen and having in memory at least:
a 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;
a download manifest comprising at least respective loading addresses of digital content items;, said digital display device being adapted to:
updating its playlist and download manifest, this updating comprising:, c1) polling at least one server at predetermined intervals, in order to determine whether said at least one server has a new playlist corresponding to said digital display device and to determine whether said at least one server has a new download manifest corresponding to said digital display device, said download manifest being a larger file than said playlist and being generated less frequently than said playlist;, c2) 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 on the digital display device;, c3) if a new download manifest has been loaded, determining, by said digital display device, what new digital content item(s) are referenced in said new download manifest;, c4) and downloading, by said digital display device, said new digital content item(s) from the corresponding respective address(es) indicated in the new download manifest, and storing said new digital content item(s) on said digital display device;
reading the digital content items previously downloaded and corresponding to the playlist and displaying these digital content items on said digital screen.