Granted Patent
Utility
US 5,781,884 · App. 08/755,041
Grapheme-to-phoneme conversion of digit strings using weighted finite state transducers to apply grammar to powers of a number basis
Inventors:
Fernando Pereira, Michael Dennis Riley, Richard William Sproat
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Nov 22, 1996
Inventors
Fernando Pereira
Michael Dennis Riley
Richard William Sproat
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.