Synamedia Limited

Nadav Angel

Samie Beheydt

Max Sorkin

Uri Porat

Yosef Tsuria

Henk Derudder

Eli Baruch

Alexander Perkalsky

Shay Gil

Techniques for media content tamper protection and detection are described. In some embodiments, the protection method is performed at an encoder. The encoder obtains a first sequence of signatures within a group of pictures and a second sequence of signatures for audio frames corresponding to the group of pictures. The encoder then combines the first sequence of signatures and the second sequence of signatures to generate a combined signature, and the combined signature is then embedded in a transport stream for transmission to a client device. In some embodiments, the detection method is performed at a client device, where the client device, in response to detecting a first message in the transport stream, starts calculation of signatures for a group of pictures and corresponding audio frames. The client device then uses the calculated signatures to validate an expected signature for the group of pictures and the corresponding audio frames.

Systems, methods, and devices for media content tamper protection and detection

Growing community of inventors

Jerusalem, Israel

Nadav Angel