Granted Patent
Utility
US 4,649,505 · App. 06/627,251
Two-input crosstalk-resistant adaptive noise canceller
Inventors:
Richard Louis Zinser, Seth D. Silverstein, Steven R. Koch
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Jul 2, 1984
Inventors
Richard Louis Zinser
Seth D. Silverstein
Steven R. Koch
Assignee (at issue)
General Electric Company
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.