Granted Patent
Utility
US 6,417,890 · App. 09/422,442
Modulation of pilot tone amplitude in DTV broadcast for faster channel acquisition
Inventors:
Kenneth Brakeley Welles, II, John Erik Hershey, Mark Lewis Grabb
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Oct 21, 1999
Inventors
Kenneth Brakeley Welles, II
John Erik Hershey
Mark Lewis Grabb
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.