IP Library Granted Patent US 5,644,680
Granted Patent Utility
US 5,644,680 · App. 08/452,191

Updating markov models based on speech input and additional information for automated telephone directory assistance

Inventors: Gregory J. Bielby, Vishwa Gupta, Lauren C. Hodgson, Matthew Lennig, R. Douglas Sharp, Hans Wasmeier
Patented Case View Patent ↗
Granted: Jul 1, 1997 Filed: May 25, 1995
Inventors
Gregory J. Bielby
Vishwa Gupta
Lauren C. Hodgson
Matthew Lennig
R. Douglas Sharp
Hans Wasmeier
Assignee (at issue)
Nortel Networks Limited

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Quick Facts
Patent No.
US 5,644,680
App. No.
08/452,191
Filed
1995-05-25
Granted
1997-07-01
Kind
A