|
5,809,139
Watermarking method and apparatus for compressed digital video |
|
5,768,426
Graphics processing system employing embedded code signals |
|
5,748,783
Method and apparatus for robust information coding |
|
5,748,763
Image steganography system featuring perceptually adaptive and globally
scalable signal embedding |
|
5,745,604
Identification/authentication system using robust, distributed coding
|
|
5,745,569
Method for stega-cipher protection of computer code |
|
5,734,752
Digital watermarking using stochastic screen patterns |
|
5,710,834
Method and apparatus responsive to a code signal conveyed through a
graphic image |
|
5,687,236
Steganographic method and device |
|
5,687,191
Post-compression hidden data transport |
|
5,664,018
Watermarking process resilient to collusion attacks |
|
5,659,726
Data embedding |
|
5,636,292
Steganography methods employing embedded calibration data |
|
5,613,004
Steganographic method and device |