Granted Patent
Utility
US 6,691,085 · App. 09/691,323
Method and system for estimating artificial high band signal in speech codec using voice activity information
Inventors:
Jani Rotola-Pukkila, Hannu Mikkola, Janne Vainio
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Oct 18, 2000
Inventors
Jani Rotola-Pukkila
Hannu Mikkola
Janne Vainio
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.