1
Maxwell T Sandford II, Theodore G Handel: Data embedding. Milton D Wyrick, William A Eklund, August 19, 1997: US05659726 (293 worldwide citation)

A method of embedding auxiliary information into a set of host data, such as a photograph, television signal, facsimile transmission, or identification card. All such host data contain intrinsic noise, allowing pixels in the host data which are nearly identical and which have values differing by les ...


2
Maxwell T Sandford II, Theodore G Handel, Jonathan N Bradley: Compression embedding. The Regents of the University of California Office of Technology Transfer, Milton D Wyrick, July 7, 1998: US05778102 (135 worldwide citation)

A method and apparatus for embedding auxiliary information into the digital representation of host data created by a lossy compression technique and a method and apparatus for constructing auxiliary data from the correspondence between values in a digital key-pair table with integer index values exi ...


3
Maxwell T Sandford II, Theodore G Handel, Jonathan N Bradley: Compression embedding. The Regents of the University of California, Milton D Wyrick, March 10, 1998: US05727092 (97 worldwide citation)

A method of embedding auxiliary information into the digital representation of host data created by a lossy compression technique. The method applies to data compressed with lossy algorithms based on series expansion, quantization to a finite number of symbols, and entropy coding. Lossy compression ...


4
Maxwell T Sandford II, Theodore G Handel: Data validation. The Regents of the University of California, Milton D Wyrick, May 16, 2000: US06065119 (62 worldwide citation)

A method of authenticating digital data such as measurements made for medical, environmental purposes, or forensic purpose, and destined for archival storage or transmission through communications channels in which corruption or modification in part is possible. Authenticated digital data contain da ...


5
Maxwell T Sandford II, Theodore G Handel: Reference palette embedding. The Regents University of California, Milton D Wyrick, February 1, 2000: US06021196 (39 worldwide citation)

A method of embedding auxiliary information into the digital representation of publication quality color-component digital data. The method applies to all digital data for which individual values are represented by discrete numerical values, and for which a corresponding approximation known as a dig ...


6
Maxwell T Sandford II, Theodore G Handel, J Mark Ettinger: Modular error embedding. The Regents of the University of California, Milton D Wyrick, October 19, 1999: US05970140 (17 worldwide citation)

A method of embedding auxiliary information into the digital representation of host data containing noise in the low-order bits. The method applies to digital data representing analog signals, for example digital images. The method reduces the error introduced by other methods that replace the low-o ...



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