Granted Patent
Utility
US 6,768,437 · App. 10/603,893
Switched voltage-mode dither signal generation for a sigma-delta modulator
Inventors:
Tarmo Ruotsalainen, Elvi Räisänen-Ruotsalainen, Vesa Korkala
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Jun 24, 2003
Inventors
Tarmo Ruotsalainen
Elvi Räisänen-Ruotsalainen
Vesa Korkala
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.