公开(公告)号：US10091178B2

公开(公告)日：2018-10-02

申请号：US15122764

申请日：2015-02-20

Applicant: VIACCESS

Inventor： Mathieu Phirmis ,  Mathieu Boivin ,  Quentin Chieze ,  Nicolas Pochon

IPC: H04L29/06 ,  G06F1/14 ,  G06F21/10

Abstract: A Method for supplying protected multimedia content during which a terminal a) acquires a service date from a date server and b) evaluates a temporal criterion of a licence with respect to the last acquired service date. A headend associates with each segment of the multimedia content, its transmission date, and transmits it in a stream together with the segment. The terminal extracts from the stream the date of transmission of the segment, then it compares the extracted transmission date to the last acquired service date. And, only if the extracted transmission date is later than the last acquired service date, acquires it as service date, and uses it as last acquired service date on an execution of the step b) between two successive executions of the step a).