Granted Patent
Utility
US 6,324,020 · App. 09/368,442
Method and apparatus for reduction of trapezoidal distortion and improvement of image sharpness in an optical image capturing system
Inventors:
Harry H. Teng, Sung Chan JO
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Aug 4, 1999
Inventors
Harry H. Teng
Sung Chan JO
Assignee (at issue)
SecuGen 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.