Resources Contact Us Home
Embedding, processing and detection of digital content, information and data

Image Number 10 for United States Patent #7660991.

Enables identification and detection of processing and type of digital content, while using multiple electronic watermarks. One embodiment provides a data processing detection system having an embedding apparatus for adding a predetermined additional signal to digital content, including a watermark design unit and embedding signal generators for generating multiple types of additional signals, correlated with each other and of differing robustness from each other for the processing of the content data, and a synthesis unit for adding the multiple types of additional signals to the content data; and detection apparatus for detecting additional signals in the digital content, and for detecting the additional signals embedded by the embedding apparatus, including an individual detector for detecting in the content data multiple additional signals, and a determination unit for examining deterioration levels of the additional signals to determine the type of processing performed for the content data.

  Recently Added Patents
Method and apparatus for visual neural stimulation
Semiconductor device manufacture in which minimum wiring pitch of connecting portion wiring layer is less than minimum wiring pitch of any other wiring layer
System and method for reliable packet data transport in a computer network
End-of-session authentication
Terminal box assembly
Method and apparatus for communication channel error rate estimation
Preparation of isomerically pure substituted cyclohexanols
  Randomly Featured Patents
Heat-shrinkable polyester films
Arrangement for the electrical connection of an optoelectronic component to an electrical component
Propylene polymers for lab/medical devices
Image transfer type copying machine
Method of making golf balls
Interface plate intended to be secured to the upper face of a ski
Apoptosis inducing adamantyl derivatives and their usage as anti-cancer agents
Inner conductor sealing insulator for coaxial connector
Fitted tablecloth
Process for removing bacterial endotoxin from gram-negative polysaccharides