A method of determining if at least a portion of a suspect signal (58) is derived from a
watermarked original signal (56) includes the steps of providing a watermark (50) and …

Methods for adapting the operation of a system in response to the detection of embedded
watermarks from a digital host content are provided. A digital host content is received and …

The presently claimed invention relates generally to digital watermarking of data, eg,
representing video or audio. One claim recites a method including: obtaining data …

Described herein is an audio Watermarking technology for detecting Watermarks in audio
signals, such as a music clip. The Watermark identi? es the content producer, providing a …

Disclosed herein are methods and systems for encoding digi tal watermarks into content
signals. Also disclosed are sys tems and methods for detecting and/or verifying digital …

Disclosed herein are methods and systems for encoding digi tal watermarks into content
signals. Also disclosed are sys tems and methods for detecting and/or verifying digital …

Methods and devices are provided to thwart analysis of a watermarking system by
preventing analysis of watermarks in a host content. Upon receiving a content at a …

Recently developed methods for copy protection rely on a watermark detector to judge
whether multimedia content can be copied or not. In such copy protection schemes, a …

The World Wide Web, Internet, and many other distributed netWorks continue to provide
opportunities for neW and improved digital information dissemination. Digital audio, video …

A digital watermark embedder reduces a watermark signal as a function of time varying
properties of video such that a watermark that would otherwise be static over frames is …