Digital watermarking systems and methods

Details Digital watermarking systems and methods Digital watermarking systems and methods

2011-08-16

2011-08-16

Le, Vu (Department: 2624)

Image analysis

Applications

C382S233000, C380S203000

Reexamination Certificate

active

08000495

ABSTRACT:
The present invention relates to watermarking of compressed audio or video files. One claim recites a method including: obtaining a copy of a compressed audio or video file; decompressing the compressed audio or video file to yield decompressed audio or video content; determining a first watermarking component for the decompressed audio or video content, the first watermarking component intended to be steganographically hidden in the audio or video content; storing the first digital watermarking component separately from the compressed audio or video file; and then providing the stored first watermarking component, a unique plural-bit watermark identifier, and the compressed audio or video file to a remote location. Other claims and combinations are provided as well.

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