Resources Contact Us Home
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
Method and system for determining an optimal missile intercept approach direction for correct remote sensor-to-seeker handover
Managing personal information on a network
Electrode for a plasma torch
Laminar library screen
Method, system, and computer program product for scoring theoretical peptides
Isoselective polymerization of epoxides
Method of operating an electromechanical converter, a controller and a computer program product
  Randomly Featured Patents
Method and apparatus for moulding and curing tires for vehicle wheels
Process for making apatitic phosphors
Plasma display panel with protective layer of an alkaline earth oxide
Method for defiberizing waste paper in a thick stock range
Method for maintaining data in a distributed computing environment for processing transaction requests
Male urinary drain system
Plasma spraying for joining silicon parts
Train vehicle speed control apparatus
Bracket for decorative lights