Layered security in digital watermarking

JK Barr, BA Bradley, BT Hannigan, AM Alattar… - US Patent …, 2012 - Google Patents
EP 6299.72 12/1994 EP O 736860 10, 1996 EP 838050 4f1998 EP O996 278 4/2000 EP
1041815 10, 2000 EP 1096429 5, 2001 EP 1173.001 1, 2002 EP 1209897 5, 2002 GB …
被引用次数：116 相关文章

Layered security in digital watermarking

J Barr, B Bradley, B Hannigan, A Alattar… - US Patent App. 10 …, 2004 - Google Patents
(57) ABSTRACT A media object authentication System uses layers of Security features
based on digital watermarkS embedded in media objects. The System generates a first …

Layered security in digital watermarking

JK Barr, BA Bradley, BT Hannigan… - US Patent …, 2012 - freepatentsonline.com
A media object authentication system uses layers of security features based on digital
watermarks embedded in media objects. The system generates a first digital watermark with …

Layered security in digital watermarking

JK Barr, BA Bradley, BT Hannigan… - US Patent App. 10 …, 2004 - freepatentsonline.com
A media object authentication system uses layers of security features based on digital
watermarks embedded in media objects. The system generates a first digital watermark with …