Granted Patent
Utility
US 6,505,299 · App. 09/260,193
Digital image scrambling for image coding systems
Inventors:
Wenjun Zeng, Shaw-Min Lei
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Mar 1, 1999
Inventors
Wenjun Zeng
Shaw-Min Lei
Assignee (at issue)
Sharp Laboratories of America, 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.