Granted Patent
Utility
US 6,535,155 · App. 09/892,971
Method and apparatus for suppressing tones induced by cyclic dynamic element matching (DEM) algorithms
Inventors:
Antti Ruha, Tarmo Ruotsalainen, Jussi-Pekka Tervaluoto, Jani Kauppinen
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Jun 27, 2001
Inventors
Antti Ruha
Tarmo Ruotsalainen
Jussi-Pekka Tervaluoto
Jani Kauppinen
Assignee (at issue)
Nokia
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.