Granted Patent
Utility
US 5,657,424 · App. 08/550,920
Isolated word recognition using decision tree classifiers and time-indexed feature vectors
Inventors:
Kevin R. Farrell, Jeffrey Scott Sorensen
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Oct 31, 1995
Inventors
Kevin R. Farrell
Jeffrey Scott Sorensen
Assignee (at issue)
Dictaphone 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.