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:
Jul. 10, 1990
Filed:
Apr. 12, 1988
Applicant:
Inventors:
Donald E Aubert, Mt. Laurel, NJ (US);
You-Sun Wu, Princeton Junction, NJ (US);
Vishnu W Nerurkar, Planisboro, NJ (US);
Assignee:
General Electric Company, East Windsor, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03C / ;
U.S. Cl.
CPC ...
332103 ; 375 39 ; 375 54 ; 375 67 ;
Abstract
An unbalanced quadrature phase-shift keyed UQPSK modulator modulates two information signals onto mutually quadrature components of a carrier. If the carrier components differ from an exact quadrature relationship by an error angle, crosstalk orr distortion is introduced. The effects of such an error are ameliorated by a limiter following the modulator.