Methods and systems for encoding and protecting data using digital signature and watermarking techniques

X Serret-Avila, G Boccon-Gibod - US Patent 7,747,858, 2010 - Google Patents
Related US Application Data Continuation of application No. 1 1/209.238, filed on Aug. 22,
2005, now Pat. No. 7,107,452, which is a continuation of application No. 10/897.001, filed on …

Digitally watermarking paper and objects with stamps and related digitally watermarked stamper

T Brundage - US Patent App. 10/453,876, 2004 - Google Patents
The present invention provides Steganographic embedding techniques. In particular, the
present invention provides a Stamper (eg, a rubber Stamp) that includes a Steganographic …

Multi-channel digital watermarking

KL Levy, SW Stewart - US Patent 7,706,565, 2010 - Google Patents
The present invention provides data steganographically embedded in multiple channels.
The term “channel'in this application is generally used to refer to a mechanism, material or …

Control signals in streaming audio or video indicating a watermark

GB Rhoads, KL Levy, TJ McKinley - US Patent 8,442,264, 2013 - Google Patents
(65) Prior Publication Data OTHER PUBLICATIONS US 2011 FO194730 A1 Aug. 11, 2011
Aust, D.,“Augmenting Paper Documents with Digital Information in Related US Application …

Adaptive prediction filtering for digital watermarking

BA Bradley - US Patent 7,688,996, 2010 - Google Patents
5,862.260 A 1/1999 Rhoads 2002/O126870 A1 9, 2002 Wendt 5,889,868 A 3, 1999
Moskowitz et al. 2002fO157005 A1 10, 2002 Brunk et al. 5,933,798 A 8, 1999 Linnartz …

Audio watermarking to convey auxiliary information, and media embodying same

GB Rhoads - US Patent 7,181,022, 2007 - Google Patents
US7181022B2 - Audio watermarking to convey auxiliary information, and media embodying
same - Google Patents US7181022B2 - Audio watermarking to convey auxiliary information, and …

Optimization methods for the insertion, protection, and detection of digital watermarks in digital data

SA Moskowitz - US Patent 7,822,197, 2010 - Google Patents
3,947,825 A 3, 1976 Cassada 3,984,624 A 10/1976 Waggener 3,986,624 A 10/1976 Cates,
Jr. et al. 4,038,596 A T. 1977 Lee 4,200,770 A 4, 1980 Hellman et al. 4,218,582 A 8, 1980 …

Visible authentication patterns for printed document

J Zhao, J Picard, N Thorwirth - US Patent 7,809,152, 2010 - Google Patents
The present application claims priority from US Provi sional Application 60/380,189, Method
and Apparatus for Copy Protection with Copy-Detectable Patterns, having the same …

Fragile watermarking for objects

MM Yeung, BL Yeo - US Patent 6,587,944, 2003 - Google Patents
Fragile watermarking for objects is disclosed. In one embodiment of the invention, a System
includes an encoder and a decoder. The encoder encodes a watermark into a object, Such …

Routing networks for use with watermark systems

WC Hein III - US Patent 6,965,683, 2005 - Google Patents
A watermark embedded in a content (eg, a printed document, digital audio, etc.) includes
data that associates the content with a remote store of related data. For example, an image …