Verfahren zum Aufbauen und Übertragen eines Inhalts mit Wasserzeichen und Verfahren zur Erkennung eines Wasserzeichens des besagten Inhalts
Anmelder: Nagravision S.A. 🇨🇭
Details
- Veröffentlichungs-Nr.
- EP2690594
- Aktenzeichen
- EP13175253
- Anmeldetag
- 5. Juli 2013
- Veröffentlichung
- 7. Mai 2014
- Rechtsraum
- EP
- IPC
- G06T1/00H04N1/32H04N21/2389H04N21/8358H04N21/258
Abstract
The present invention concerns a method for building a watermarked content for sending to at least one user unit having a user unit identifier, the watermarked content comprising a first series of packets, at least some from the first series of packets being available in at least two different qualities, characterized in that said method comprises the steps of : generating a watermark based on at least the user unit identifier, the watermark being formed by a first series of values from a predetermined set of values; mapping each of the at least two different qualities to one from the predetermined set of values; building the watermarked content by sequentially selecting from the first series of packets, a packet having a quality corresponding to each value from the first series of values forming the watermark. It further concerns a method for transmitting such a watermarked content
Anmelder
- Firma
- Nagravision S.A.
- Land
- 🇨🇭 Schweiz
Schweizer Technologieunternehmen (Kudelski-Gruppe) mit Sitz in Cheseaux-sur-Lausanne, spezialisiert auf digitale TV-Sicherheit, Zugangskontrolle und Content-Schutz. Patente vor allem im Bereich Rundfunk- und Streaming-Verschlüsselung.
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