US 12,244,909 B2
Multimedia content protection
Alberto Ciarniello, Rome (IT)
Assigned to Telecom Italia S.p.A., Milan (IT)
Appl. No. 17/783,404
Filed by Telecom Italia S.p.A., Milan (IT)
PCT Filed Dec. 10, 2020, PCT No. PCT/EP2020/085429
§ 371(c)(1), (2) Date Jun. 8, 2022,
PCT Pub. No. WO2021/116247, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 102019000023844 (IT), filed on Dec. 12, 2019.
Prior Publication US 2023/0027170 A1, Jan. 26, 2023
Int. Cl. H04N 21/8358 (2011.01); H04N 21/2187 (2011.01); H04N 21/431 (2011.01); H04N 5/913 (2006.01)
CPC H04N 21/8358 (2013.01) [H04N 21/2187 (2013.01); H04N 21/4318 (2013.01); H04N 2005/91335 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for protecting multimedia content distributed by a content service to a user device, the multimedia content being related to a live event, wherein the method comprises, during said live event:
identifying a significant segment of said live event;
generating a trigger signal comprising generating a timing signal indicative of the time at which said significant segment is identified;
at said user device, based on said trigger signal, generating marking information comprising information identifying said user device; and
at said user device, applying said marking information to a selected portion of the multimedia content, said selected portion corresponding to said significant segment of the live event,
wherein said identifying said significant segment of said live event is performed with a first delay with respect to a start time of said significant segment of said live event, wherein said first delay is lower than a latency, said latency being indicative of a second delay after which said selected portion is available to be presented to a user with respect to said start time of said significant segment.