Tynax ~ Patent Library

Patent for Sale:

Digital Watermarking System    

2 US patents toward a Digital Watermarking System


These two digital watermarking patents include a new and improved watermarking system and technique for use with video and audio. The technology can be applied directly to compressed media data/frames with variable lengths (as opposed to a common fixed length) which tremendously reduces the amount of data needed to be processed and increases the degree of difficulty for tampering without being detected.
The technology generates a new digital signature for each compressed frame based upon the current compressed frame and the previously generated signature. The digital signature is correlated with the previously generated signature in a process in which the compressed frame and the digital signature involved in the digital signature generation process are determined through a frame correlation vector and a signature correlation vector. This technology makes the piracy of the original media contents extremely difficult, and the detection of the piracy very easy to implement, if any frame has been modified, all the signatures corresponding to that frame and beyond will be inconsistent with the original frame being copied.

Primary Application of the Technology

This watermarking system can be applied to any continuous digital media such as video and audio.

Competitive Advantage

- Reduces the amount of data needed to be processed.
- Increases the degree of difficulty for tampering without being detected.
- Makes the piracy of the original media contents difficult and the detection of the piracy easy to implement.

Comments on Deal Structure, Potential Terms and Restrictions

No current licensees. No encumbrances. No other related patents/apps.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 382: Image Analysis

This is the generic class for apparatus and corresponding methods for the automated analysis of an image or recognition of a pattern. Included herein are systems that transform an image for the purpose of (a) enhancing its visual quality prior to recognition, (b) locating and registering the image relative to a sensor or stored prototype, or reducing the amount of image data by discarding irrelevant data, and (c) measuring significant characteristics of the image.

Subclass 100: APPLICATIONS
Subclass 278: Correlation

Class 380: Cryptography

Equipment and processes which (a) conceal or obscure intelligible information by transforming such information so as to make the information unintelligible to a casual or unauthorized recipient, or (b) extract intelligible information from such a concealed representation, including breaking of unknown codes and messages.