1
Geoffrey B Rhoads: Computer system linked by using information in data objects. Digimarc Corporation, Elmer Galbi, September 19, 2000: US06122403 (802 worldwide citation)

Various improvements to steganographic systems, and applications therefore, are disclosed. The improvements include facilitating scale and rotation registration for steganographic decoding by use of rotationally symmetric steganographically embedded patterns and subliminal digital graticules; improv ...


2
Geoffrey B Rhoads: Methods for surveying dissemination of proprietary empirical data. Digimarc Corporation, Klarquist Sparkman Campbell Leigh & Whinston, January 19, 1999: US05862260 (775 worldwide citation)

An automated system checks networked computers, such as computers on the internet, for watermarked audio, video, or image data. A report listing the location of such audio, video or image data is generated, and provided to the proprietor(s) thereof identified by the watermark information.


3
Geoffrey B Rhoads: Linking of computers based on optical sensing of digital data. Digimarc Corporation, William Y Conwell, Digimarc Corporation, October 30, 2001: US06311214 (689 worldwide citation)

A printed object, such as an item of postal mail, a book, printed advertising, a business card, product packaging, etc., is steganographically encoded with plural-bit data. When such an object is presented to an optical sensor, the plural-bit data is decoded and used to establish a link to an intern ...


4
Geoffrey B Rhoads, Ammon E Gustafson: Watermark embedder and reader. Digimarc Corporation, Joel R Meyer, Digimarc Corporation, September 2, 2003: US06614914 (681 worldwide citation)

A watermark system includes an embedder, detector, and reader. The watermark embedder encodes a watermark signal in a host signal to create a combined signal. The detector looks for the watermark signal in a potentially corrupted version of the combined signal, and computes its orientation. Finally, ...


5
Kenneth L Levy, Geoffrey B Rhoads: Connected audio and other media objects. Digimarc Corporation, Joel R Meyer, Digimarc Corporation, January 7, 2003: US06505160 (655 worldwide citation)

Media objects are transformed into active, connected objects via identifiers embedded into them or their containers. In the context of a user's playback experience, a decoding process extracts the identifier from a media object and possibly additional context information and forwards it to a se ...


6
Geoffrey B Rhoads: Steganography methods employing embedded calibration data. Digimarc Corporation, Klarquist Sparkman Campbell Leigh & Whinston, June 3, 1997: US05636292 (581 worldwide citation)

An identification code signal is impressed on a carrier to be identified (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned and the carrier thereby identified. The method and apparatus are characterized by robustness desp ...


7
Geoffrey B Rhoads, Megan I Livermore: Cell phones with optical capabilities, and related applications. Digimarc Corporation, Digimarc Corporation, September 20, 2005: US06947571 (538 worldwide citation)

A cell phone is equipped with a 2D optical sensor, enabling a variety of applications. For example, such a phone may also be provided with a digital watermark decoder, permitting decoding of steganographic data on imaged objects. Movement of a phone may be inferred by sensing movement of an imaged p ...


8
Geoffrey B Rhoads: Network linking method using steganographically embedded data objects. Digimarc Corporation, Marger Johnson McCollom & Stolowitz P C, November 24, 1998: US05841978 (483 worldwide citation)

A given data object can effectively contain both a graphical representation to a network user and embedded information, such as the URL address of another network node, thereby to permit the object itself to serve as an automated hot link. The underlying development tools and web site browsers creat ...


9
Geoffrey B Rhoads: Graphics processing system employing embedded code signals. Digimarc Corporation, Klarquist Sparkman Campbell Leigh & Whinston, June 16, 1998: US05768426 (467 worldwide citation)

An identification code signal is impressed on a carrier to be identified (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned and the carrier thereby identified. The method and apparatus are characterized by robustness desp ...


10
Geoffrey B Rhoads: Watermark enabled video objects. Digimarc Corporation, Steven W Stewart, Digimarc Corporation, June 25, 2002: US06411725 (438 worldwide citation)

Watermarks in video signals or the accompanying audio track are used to associate video objects in a video sequence with object specific actions or information. A video object refers to a spatial and temporal portion of a video signal that depicts a recognizable object, such as a character, prop, gr ...



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