Verance Corporation Awarded Patent For Anti-Collusion Technology

Patent Covers New Method Of Protecting Transactional Watermarks

6-Dec-00

Verance, a leading developer of watermark technologies for content management and audio and audio visual broadcast monitoring, announced that the U.S. Patent and Trademark Office has issued U.S. patent number 6,145,081 entitled ""Method And Apparatus For Preventing Removal Of Embedded Information In Cover Signals."" The patented technology covers a new method of protecting transactional watermarks. Transactional watermarks permit unique information to be embedded into individual copies of recorded material. These watermarks are potentially subject to collusion attacks, in which multiple recipients combine copies in an attempt to erase or obscure the marks in the combined copy. The new method developed by Verance represents a fundamental advance in the security of transactional watermarking technologies. ""As we continue to make advancements in the applications of watermarking technology, it is imperative that we continue to develop new methods for protecting the integrity of watermarks,"" said Dr. Joseph Winograd, Executive Vice President of Technology, Verance. ""With this new patent, we make an important breakthrough in watermark security."" For more information about Verance Corporation, visit www.verance.com.

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