Granted Patent
Utility
US 6,680,972 · App. 09/230,799
Source coding enhancement using spectral-band replication
Inventors:
Lars G. Liljeryd, Per Ekstrand, Lars Fredrik Henn, Hans Magnus Kristofer Kjorling
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Feb 9, 1999
Inventors
Lars G. Liljeryd
Per Ekstrand
Lars Fredrik Henn
Hans Magnus Kristofer Kjorling
Assignee (at issue)
Coding Technologies Sweden AB
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.