Identifying material using a watermark and a signature

MWA David, JJ Stone - US Patent 7,818,577, 2010 - Google Patents
US7818577B2 - Identifying material using a watermark and a signature - Google Patents
US7818577B2 - Identifying material using a watermark and a signature - Google Patents …

Identifying material using a watermark and a signature

MWA David, JJ Stone - US Patent 7,818,577, 2010 - freepatentsonline.com
A method of identifying material comprises the step of inserting an identifying code into a
signal as a watermark, and deriving a signature from the material. The code and signature …

Identifying material

M David, J Stone - US Patent App. 10/011,225, 2002 - Google Patents
(57) ABSTRACT A method of identifying material comprises the Step of inserting (882) an
identifying code (886) into a signal as a watermark, and deriving (884) a signature from the …

Identifying material

MWA David, JJ Stone - US Patent App. 10/011,225, 2002 - freepatentsonline.com
A method of identifying material comprises the step of inserting (882) an identifying code
(886) into a signal as a watermark, and deriving (884) a signature from the material. The …