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:
Mar. 27, 1990
Filed:
Sep. 21, 1982
Applicant:
Inventor:
Leonard N Schiff, Lawrenceville, NJ (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ;
U.S. Cl.
CPC ...
455 71 ; 455 74 ; 455103 ;
Abstract
A transmitted signal includes a pilot signal, a plurality of information signals and a carrier signal modulated by a modulating signal related in frequency to the pilot signal frequency. At a receiving station, the carrier signal is demodulated and the demodulated signal is used to generate a reference signal to translate the frequencies of the recovered pilot signal and the plurality of information signals by an amount sufficient to correct for undesirable frequency shifts which have occurred in the transmitted signal.