(57) ABSTRACT A method is provided for authenticating a media signal and related
Software, Systems and applications. A digital water mark is embedded in the media signal. A …

The disclosure details methods of measuring the quality of service of received media signals
by analyzing digital water marks embedded in Such signals. The quality of a received Video …

The invention provides methods for detecting digital watermarks in a media Signal and
related Software imple mentations. One aspect of the invention is a method of detecting a …

The disclosure describes methods for using digital water marking to authenticate digital
media signals, such as images, audio and video signals. It also describes techniques for …

Digital watermark methods for encoding auxiliary data into a host signal are used to
authenticate physical and electronic objects. One Such method computes a content specific …

BACKGROUND Digital Watermarking is a process for modifying physical or electronic media
to embed a machine-readable code into the media, particularly for information security and …

A digital watermark detection method exploits autocorrelation properties of the watermarked
signal that enable synchronization of the digital watermark despite temporal or geometric …

(57) ABSTRACT A method for decoding auxiliary data from media signals in multimedia
content decodes watermarks from different media Signals and uses the watermarks to …

A content watermarking method derives a watermark key from data representing content. In
one particular method, a plural symbol message is algorithmically transformed in …

Methods, devices and computer program products allow improved detection of watermarks
into and from a multi media content. One method for detecting watermarks from a host …