Granted Patent
Utility
US 6,381,266 · App. 09/164,155
Method and apparatus for identifying the encoding type of a central office codec
Inventors:
Xuming Zhang, Zhenyu Zhou
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Sep 30, 1998
Inventors
Xuming Zhang
Zhenyu Zhou
Assignee (at issue)
Conexant Systems, LLC
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.