Granted Patent
Utility
US 6,282,300 · App. 09/489,752
Rotation, scale, and translation resilient public watermarking for images using a log-polar fourier transform
Inventors:
Jeffrey Adam Bloom, Ingemar J. Cox, Matthew L. Miller, Min-Shan Wu, Ching-Yung Lin, Yui Man Lui
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Jan 21, 2000
Inventors
Jeffrey Adam Bloom
Ingemar J. Cox
Matthew L. Miller
Min-Shan Wu
Ching-Yung Lin
Yui Man Lui
Assignee (at issue)
Signafy, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.