Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels










Image Number 19 for United States Patent #6449367.

Electronic steganographic techniques can be used to encode a rights management control signal onto an information signal carried over an insecure communications channel. Steganographic techniques ensure that the digital control information is substantially invisibly and substantially indelibly carried by the information signal. These techniques can provide end-to-end rights management protection of an information signal irrespective of transformations between analog and digital. An electronic appliance can recover the control information and use it for electronic rights management to provide compatibility with a Virtual Distribution Environment. In one example, the system encodes low data rate pointers within high bandwidth time periods of the content signal to improve overall control information read/seek times.








 
 
  Recently Added Patents
Dynamic bar oriented user interface
Polynucleotide capture materials, and methods of using same
Detection of code-based malware
Method and apparatus for allocating erasure coded data to disk storage
Device to control force required to depress accelerator pedal
Digital display
Externally gapped line arrester
  Randomly Featured Patents
Inkjet print head and manufacturing method thereof
Bucket hat
System and method for high accuracy gas inject in a two chamber gas discharge laser system
Computing device with dynamic ornamental appearance
System for cancelling echo signals
Vehicle air-conditioning system with automatic louver oscillation control
Resolver-type rotational positioning arrangement
Liquid crystal display device of in-plane switching mode
Asymmetric multiple access protocol for a communication system
Architecture for a signal processing apparatus