Granted Patent
Utility
US 5,488,652 · App. 08/227,830
Method and apparatus for training speech recognition algorithms for directory assistance applications
Inventors:
Gregory J. Bielby, Vishwa Gupta, Lauren C. Hodgson, Matthew Lennig, R. Douglas Sharp, Hans Wasmeier
Patented Case
View Patent ↗
Granted: Jan 30, 1996
Filed: Apr 14, 1994
Inventors
Gregory J. Bielby
Vishwa Gupta
Lauren C. Hodgson
Matthew Lennig
R. Douglas Sharp
Hans Wasmeier
Assignee (at issue)
Nortel Networks Limited
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.