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
Dynamic lookup service in a distributed system
Apparatus and method for weighing an item of mail during transport through a sorting installation and having an anti-vibration device
Ion beam system and method of operating ion beam system
Display screen with graphical user interface
Light emitting device
Power device and method of packaging same
  Randomly Featured Patents
Linear actuator of the screw-nut type
Ceramic charcoal grill
Image forming apparatus utilizing technology of periodically varying rotational speed of motor
Silver halide developing solutions
Heat-sensitive recording sheet
Method and apparatus for electrostatically separating particles from a mixture of particles
Recording apparatus and method of recording data
Explosion-proof switching installation with a bus bar duct
Car body member with beads