Granted Patent
Utility
US 5,647,022 · App. 07/959,874
Method and apparatus for symbol recognition using multidimensional preprocessing and symbol sorting
Inventors:
Yann LeCun, Quen-Zong Wu
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Oct 13, 1992
Inventors
Yann LeCun
Quen-Zong Wu
Assignee (at issue)
LUCENT TECHNOLOGIES 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.