Granted Patent
Utility
US 6,404,899 · App. 09/346,104
Data embedding scheme with error diffusion
Inventors:
Saurabh Agarwal, Alok Aggarwal, Harpal S. Bassali, Jatin Chhugani, Pradeep Kumar Dubey
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Jul 1, 1999
Inventors
Saurabh Agarwal
Alok Aggarwal
Harpal S. Bassali
Jatin Chhugani
Pradeep Kumar Dubey
Assignee (at issue)
International Business Machines Corporation
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.