Digital display system and method
AssigneeJCDecaux SA
InventorLudovic Bertrand
Life of this patent
Estimating the term…
Abstract
Digital display method for displaying digital contents in a coordinated manner by digital display devices (2) belonging to a group (G), the digital contents being defined in playlists stored by each of the digital display devices, the method including: electing a leader among said digital display devices of the group, using a consensus algorithm; determining from synchronization messages sent by the leader to the other digital display devices of the group, a display starting time for each digital content defined by the playlist of each device of digital display of the group.
Claims14
A digital display method for displaying digital contents in a coordinated manner by digital display devices belonging to a group, the digital contents being defined in playlists stored by each of the digital display devices, the method including:
- electing by the digital display devices of the group, a leader among said digital display devices of the group, using a consensus algorithm;
- determining from synchronization messages sent by the leader to the other digital display devices of the group, a display starting time for each digital content defined by the playlist of each device of digital display of the group,
- wherein the digital display devices of the group belong to a set of digital display devices also comprising digital display devices not belonging to said group, the method further comprising:
- keeping up to date, by a central platform, a list of digital display devices of the set which belong to said
- repeatedly updating the digital display devices of the set with said central platform so that each digital display dex s of the set has in memory a piece of information indicating whether it belongs to a group ar digital display device of said group has in memory the list of digital display devices of said group.
A digital display system comprising digital display devices, at least some of said digital display devices belonging to a group, the digital contents being defined in playlists memorized by each of the digital display devices, the digital display devices of d group being adapted to:
- elect a leader among said digital display devices of the group, using a cons us algorithm said leader being adapted to send synchronization messages to the other digital display devices of the group:
- determine from the synchronization sa arting time for each digit content defined by the playlist of each digital display device of the group,
- wherein the digital display devices of the group belong to a set of digital display devices also comprising digital display devices not belonging to said group, the system further comprising a central platform adapted to keeping up to date a list of digital display devices of the set which belong to said group, the system being adapted to repeatedly update the digital display devices of the set with said central platform so that each digital display device of the set has in memory a piece of information indicating whether it belongs to a group and so that each digital display device of said group has in memory the list of digital display devices of said group.
Dependencies are inferred from the claim text.