A watermark embeds an imperceptible signal into data such as audio, video and images, for
a variety of purposes, including captioning and copyright control. In this paper, we first …

Digital representation of copyrighted material such as movies, songs, and photographs offer
many advantages. However, the fact that an unlimited number of perfect copies can be …

Digital audio, video, images, and documents are flying through cyberspace to their
respective owners. Unfortunately, along the way, individuals may choose to intervene and …

We review developments in transparent data embedding and watermarking for audio,
image, and video. Data-embedding and watermarking algorithms embed text, binary …

2008-11-05 Assigned to DIGIMARC CORPORATION (FORMERLY DMRC CORPORATION)
reassignment DIGIMARC CORPORATION (FORMERLY DMRC CORPORATION) …

2008-11-05 Assigned to DIGIMARC CORPORATION (FORMERLY DMRC CORPORATION)
reassignment DIGIMARC CORPORATION (FORMERLY DMRC CORPORATION) …

(57) ABSTRACT A watermark System includes an embedder, detector, and reader. The
watermark embedder encodes a watermark Sig nal in a host signal to create a combined …

US7120800B2 - Systems and methods for secure transaction management and electronic
rights protection - Google Patents US7120800B2 - Systems and methods for secure transaction …

3 569 619 A 3/1971 Simjian...................... 235/380 Watermarks transform Video Objects into
“Watermark 3: 665j162 A 5/1972 Yamamoto et a1_ _______ __ 235/380 enabled” video …

(57) ABSTRACT A method for disseminating emergency noti? cation content from an
emergency originating source. The method com prising: delivering the emergency noti …