Granted Patent
Utility
US 5,521,942 · App. 08/076,507
Method for increasing the dynamic range of a signal in a simultaneous voice and data system by the use of overlapping signal point regions and trellis coding
Inventors:
William L. Betts, Gordon Bremer, Luke J. Smithwick, Edward S. Zuranski
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Jun 14, 1993
Inventors
William L. Betts
Gordon Bremer
Luke J. Smithwick
Edward S. Zuranski
Assignee (at issue)
AT&T CORP.
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.