The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 1987
Filed:
Apr. 11, 1985
Applicant:
Inventors:
Edward S Zuranski, Largo, FL (US);
Robert E Scott, Clearwater, FL (US);
William L Betts, St. Petersburgh, FL (US);
Assignee:
Paradyne Corporation, Largo, FL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
375 10 ; 375 39 ; 375 51 ;
Abstract
A modem receiver used in a QAM or PSK data communication system is provided with various circuits generating error or monitoring signals indicative of the status of the system. These signals and the in-phase and quadrature components of the received signals are fed to an interface circuit which generates display signals suitable for driving a display unit such as an oscilloscope. These display signals define an image composed of the signal constellation of the received signals and various error or monitoring points.