Abstract: A method for detecting perturbations in a logic circuit including a plurality of datapaths coordinated by a clock signal and at least one test circuit having a programmable length datapath for varying a test propagation delay. The test circuit further including inputs, an output and an error generator for providing an error in case that the output is different than an expected output for the inputs. The test circuit having a calibration mode including determining a critical propagation delay by varying the programmable length datapath until the error generator outputs an error, adjusting the programmable length datapath to include therein a tolerance delay, and switching into a detection mode configured to detect a perturbation in the logic circuit along the programmable length datapath in case the error generator outputs an error.

Abstract: Method for providing at least one client device (10), from a server (20) configured to control access to audio/video content, with management messages (40), comprising:—determining a first set (41) of management messages pertaining to said client device (10),—transmitting said first set through a first communicatio n channel (51) in a repetitive manner,—receiving, from said client device, a notification (15) comprising at least a client device identifier (11),—determining a second set (42) of management messages, said second set comprising all or part of the first set,—determining a token (45) associated with the second set,—receiving, from the client device, a confirmation (15?) comprising data pertaining to the token,—verifying the data pertaining to the token and, in case of a positive verification, removing all or part of the second set from the transmission through the first communication channel.

Abstract: A post-processing of video content in order to provide a capability to insert ad content, having a method to produce a modified video content from an original video content. The method comprising: analyzing the original video content to detect at least one marker, said marker comprising a marker surface delimited by a marker identification; loading profile data of a target user; determining, based at least on the profile data a replacement content; adjusting the replacement content into the marker surface; and replacing into the original video content the marker surface by the adjusted replacement content to produce the modified video content.

Abstract: The method of proximity detection between a first and a second device (DVC1, DVC2), carried out by the first device (DVC1), comprises the steps of collecting a first information on exposure of the first device (DVC1) to electromagnetic waves; receiving a second information on exposure of the second device (DVC2) to electromagnetic waves from the second device (DVC2); determining a matching information between the first information on exposure and the second information on exposure and detecting either proximity or non-proximity between the first and the second device (DVC1, DVC2) based on the matching information.