Granted Patent
Utility
US 5,939,712 · App. 08/866,033
Absolute position detection within 1 revolution using 3-channel incremental encoders with high resolution index track
Inventors:
Prasad Venugopal, Nan Jiang
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: May 30, 1997
Inventors
Prasad Venugopal
Nan Jiang
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.