Granted Patent
Utility
US 4,827,431 · App. 07/005,094
Methods and systems for the simultaneous quantitative measurement of phase and amplitude jitter impairments and signal to noise ratio in a qam data communication channel
Inventor:
Yury A. Goldshtein
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: Jan 20, 1987
Inventor
Yury A. Goldshtein
Assignee (at issue)
General DataComm, Inc.
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.