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 systems for detecting duplicate travel path
Pharmaceutical composition for treating CAPRIN-1 expressing cancer
Laser processing method and apparatus
Systems and/or methods for using air/wind power to charge/re-charge vehicle batteries
Client-managed group communication sessions within a wireless communications system
Light-emitting diode package and method for manufacturing the same
Image processing apparatus, control method for the same, and storage medium
  Randomly Featured Patents
Sheet package producing system
Optical microscope
Fat based preservative coating and method for preserving foods
Diffractive optical element for extreme ultraviolet wavefront control
Device for deburring the inside of a longitudinally seam-welded pipe, and method for adjusting a device of this type
Communications system and method
Methods and systems for processing playlists
Affinity chromatography matrices and methods of making and using the same
Pneumatic suspension system