Granted Patent
Utility
US 6,584,437 · App. 09/878,762
Method and apparatus for coding successive pitch periods in speech signal
Inventors:
Ari Heikkinen, Vesa Ruoppila, Samuli Pietila
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Jun 11, 2001
Inventors
Ari Heikkinen
Vesa Ruoppila
Samuli Pietila
Assignee (at issue)
Nokia Mobile Phones Ltd.
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.