Watermarking with covert channel and permutations
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 23, 2009
Grant Date -
May 19, 2005
app pub date -
Nov 8, 2004
filing date -
Jul 13, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Described herein is a watermarking technology for protecting digital signals, such as a music clip. In another described implementation, a watermarking system employs a permutation technique to hide a watermark. The order in which data is imposed or encoded is rearranged may be based upon a permutation table. The same table may be used to reverse permute the data at the detector.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully